workspace.rs

    1pub mod active_file_name;
    2pub mod dock;
    3pub mod history_manager;
    4pub mod invalid_item_view;
    5pub mod item;
    6mod modal_layer;
    7mod multi_workspace;
    8#[cfg(test)]
    9mod multi_workspace_tests;
   10pub mod notifications;
   11pub mod pane;
   12pub mod pane_group;
   13pub mod path_list {
   14    pub use util::path_list::{PathList, SerializedPathList};
   15}
   16mod persistence;
   17pub mod searchable;
   18mod security_modal;
   19pub mod shared_screen;
   20use db::smol::future::yield_now;
   21pub use shared_screen::SharedScreen;
   22pub mod focus_follows_mouse;
   23mod status_bar;
   24pub mod tasks;
   25mod theme_preview;
   26mod toast_layer;
   27mod toolbar;
   28pub mod welcome;
   29mod workspace_settings;
   30
   31pub use crate::notifications::NotificationFrame;
   32pub use dock::Panel;
   33pub use multi_workspace::{
   34    CloseWorkspaceSidebar, DraggedSidebar, FocusWorkspaceSidebar, MoveProjectToNewWindow,
   35    MultiWorkspace, MultiWorkspaceEvent, NewThread, NextProject, NextThread, PreviousProject,
   36    PreviousThread, ProjectGroup, ProjectGroupKey, SerializedProjectGroupState, Sidebar,
   37    SidebarEvent, SidebarHandle, SidebarRenderState, SidebarSide, ToggleWorkspaceSidebar,
   38    sidebar_side_context_menu,
   39};
   40pub use path_list::{PathList, SerializedPathList};
   41pub use remote::{
   42    RemoteConnectionIdentity, remote_connection_identity, same_remote_connection_identity,
   43};
   44pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   45
   46use anyhow::{Context as _, Result, anyhow};
   47use client::{
   48    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   49    proto::{self, ErrorCode, PanelId, PeerId},
   50};
   51use collections::{HashMap, HashSet, hash_map};
   52use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   53use fs::Fs;
   54use futures::{
   55    Future, FutureExt, StreamExt,
   56    channel::{
   57        mpsc::{self, UnboundedReceiver, UnboundedSender},
   58        oneshot,
   59    },
   60    future::{Shared, try_join_all},
   61};
   62use gpui::{
   63    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Axis, Bounds,
   64    Context, CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   65    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   66    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   67    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   68    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   69};
   70pub use history_manager::*;
   71pub use item::{
   72    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   73    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   74};
   75use itertools::Itertools;
   76use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   77pub use modal_layer::*;
   78use node_runtime::NodeRuntime;
   79use notifications::{
   80    DetachAndPromptErr, Notifications, dismiss_app_notification,
   81    simple_message_notification::MessageNotification,
   82};
   83pub use pane::*;
   84pub use pane_group::{
   85    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   86    SplitDirection,
   87};
   88use persistence::{SerializedWindowBounds, model::SerializedWorkspace};
   89pub use persistence::{
   90    WorkspaceDb, delete_unloaded_items,
   91    model::{
   92        DockData, DockStructure, ItemId, MultiWorkspaceState, SerializedMultiWorkspace,
   93        SerializedProjectGroup, SerializedWorkspaceLocation, SessionWorkspace,
   94    },
   95    read_serialized_multi_workspaces, resolve_worktree_workspaces,
   96};
   97use postage::stream::Stream;
   98use project::{
   99    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
  100    WorktreeSettings,
  101    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
  102    project_settings::ProjectSettings,
  103    toolchain_store::ToolchainStoreEvent,
  104    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
  105};
  106use remote::{
  107    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
  108    remote_client::ConnectionIdentifier,
  109};
  110use schemars::JsonSchema;
  111use serde::Deserialize;
  112use session::AppSession;
  113use settings::{
  114    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  115};
  116
  117use sqlez::{
  118    bindable::{Bind, Column, StaticColumnCount},
  119    statement::Statement,
  120};
  121use status_bar::StatusBar;
  122pub use status_bar::StatusItemView;
  123use std::{
  124    any::TypeId,
  125    borrow::Cow,
  126    cell::RefCell,
  127    cmp,
  128    collections::VecDeque,
  129    env,
  130    hash::Hash,
  131    path::{Path, PathBuf},
  132    process::ExitStatus,
  133    rc::Rc,
  134    sync::{
  135        Arc, LazyLock,
  136        atomic::{AtomicBool, AtomicUsize},
  137    },
  138    time::Duration,
  139};
  140use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  141use theme::{ActiveTheme, SystemAppearance};
  142use theme_settings::ThemeSettings;
  143pub use toolbar::{
  144    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  145};
  146pub use ui;
  147use ui::{Window, prelude::*};
  148use util::{
  149    ResultExt, TryFutureExt,
  150    paths::{PathStyle, SanitizedPath},
  151    rel_path::RelPath,
  152    serde::default_true,
  153};
  154use uuid::Uuid;
  155pub use workspace_settings::{
  156    AutosaveSetting, BottomDockLayout, FocusFollowsMouse, RestoreOnStartupBehavior,
  157    StatusBarSettings, TabBarSettings, WorkspaceSettings,
  158};
  159use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  160
  161use crate::{dock::PanelSizeState, item::ItemBufferKind, notifications::NotificationId};
  162use crate::{
  163    persistence::{
  164        SerializedAxis,
  165        model::{SerializedItem, SerializedPane, SerializedPaneGroup},
  166    },
  167    security_modal::SecurityModal,
  168};
  169
  170pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  171
  172static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  173    env::var("ZED_WINDOW_SIZE")
  174        .ok()
  175        .as_deref()
  176        .and_then(parse_pixel_size_env_var)
  177});
  178
  179static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  180    env::var("ZED_WINDOW_POSITION")
  181        .ok()
  182        .as_deref()
  183        .and_then(parse_pixel_position_env_var)
  184});
  185
  186pub trait TerminalProvider {
  187    fn spawn(
  188        &self,
  189        task: SpawnInTerminal,
  190        window: &mut Window,
  191        cx: &mut App,
  192    ) -> Task<Option<Result<ExitStatus>>>;
  193}
  194
  195pub trait DebuggerProvider {
  196    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  197    fn start_session(
  198        &self,
  199        definition: DebugScenario,
  200        task_context: SharedTaskContext,
  201        active_buffer: Option<Entity<Buffer>>,
  202        worktree_id: Option<WorktreeId>,
  203        window: &mut Window,
  204        cx: &mut App,
  205    );
  206
  207    fn spawn_task_or_modal(
  208        &self,
  209        workspace: &mut Workspace,
  210        action: &Spawn,
  211        window: &mut Window,
  212        cx: &mut Context<Workspace>,
  213    );
  214
  215    fn task_scheduled(&self, cx: &mut App);
  216    fn debug_scenario_scheduled(&self, cx: &mut App);
  217    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  218
  219    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  220}
  221
  222/// Opens a file or directory.
  223#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  224#[action(namespace = workspace)]
  225pub struct Open {
  226    /// When true, opens in a new window. When false, adds to the current
  227    /// window as a new workspace (multi-workspace).
  228    #[serde(default = "Open::default_create_new_window")]
  229    pub create_new_window: bool,
  230}
  231
  232impl Open {
  233    pub const DEFAULT: Self = Self {
  234        create_new_window: false,
  235    };
  236
  237    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  238    /// the serde default and `Open::DEFAULT` stay in sync.
  239    fn default_create_new_window() -> bool {
  240        Self::DEFAULT.create_new_window
  241    }
  242}
  243
  244impl Default for Open {
  245    fn default() -> Self {
  246        Self::DEFAULT
  247    }
  248}
  249
  250actions!(
  251    workspace,
  252    [
  253        /// Activates the next pane in the workspace.
  254        ActivateNextPane,
  255        /// Activates the previous pane in the workspace.
  256        ActivatePreviousPane,
  257        /// Activates the last pane in the workspace.
  258        ActivateLastPane,
  259        /// Switches to the next window.
  260        ActivateNextWindow,
  261        /// Switches to the previous window.
  262        ActivatePreviousWindow,
  263        /// Adds a folder to the current project.
  264        AddFolderToProject,
  265        /// Clears all notifications.
  266        ClearAllNotifications,
  267        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  268        ClearNavigationHistory,
  269        /// Closes the active dock.
  270        CloseActiveDock,
  271        /// Closes all docks.
  272        CloseAllDocks,
  273        /// Toggles all docks.
  274        ToggleAllDocks,
  275        /// Closes the current window.
  276        CloseWindow,
  277        /// Closes the current project.
  278        CloseProject,
  279        /// Opens the feedback dialog.
  280        Feedback,
  281        /// Follows the next collaborator in the session.
  282        FollowNextCollaborator,
  283        /// Moves the focused panel to the next position.
  284        MoveFocusedPanelToNextPosition,
  285        /// Creates a new file.
  286        NewFile,
  287        /// Creates a new file in a vertical split.
  288        NewFileSplitVertical,
  289        /// Creates a new file in a horizontal split.
  290        NewFileSplitHorizontal,
  291        /// Opens a new search.
  292        NewSearch,
  293        /// Opens a new window.
  294        NewWindow,
  295        /// Opens multiple files.
  296        OpenFiles,
  297        /// Opens the current location in terminal.
  298        OpenInTerminal,
  299        /// Opens the component preview.
  300        OpenComponentPreview,
  301        /// Reloads the active item.
  302        ReloadActiveItem,
  303        /// Resets the active dock to its default size.
  304        ResetActiveDockSize,
  305        /// Resets all open docks to their default sizes.
  306        ResetOpenDocksSize,
  307        /// Reloads the application
  308        Reload,
  309        /// Formats and saves the current file, regardless of the format_on_save setting.
  310        FormatAndSave,
  311        /// Saves the current file with a new name.
  312        SaveAs,
  313        /// Saves without formatting.
  314        SaveWithoutFormat,
  315        /// Shuts down all debug adapters.
  316        ShutdownDebugAdapters,
  317        /// Suppresses the current notification.
  318        SuppressNotification,
  319        /// Toggles the bottom dock.
  320        ToggleBottomDock,
  321        /// Toggles centered layout mode.
  322        ToggleCenteredLayout,
  323        /// Toggles edit prediction feature globally for all files.
  324        ToggleEditPrediction,
  325        /// Toggles the left dock.
  326        ToggleLeftDock,
  327        /// Toggles the right dock.
  328        ToggleRightDock,
  329        /// Toggles zoom on the active pane.
  330        ToggleZoom,
  331        /// Toggles read-only mode for the active item (if supported by that item).
  332        ToggleReadOnlyFile,
  333        /// Zooms in on the active pane.
  334        ZoomIn,
  335        /// Zooms out of the active pane.
  336        ZoomOut,
  337        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  338        /// If the modal is shown already, closes it without trusting any worktree.
  339        ToggleWorktreeSecurity,
  340        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  341        /// Requires restart to take effect on already opened projects.
  342        ClearTrustedWorktrees,
  343        /// Stops following a collaborator.
  344        Unfollow,
  345        /// Restores the banner.
  346        RestoreBanner,
  347        /// Toggles expansion of the selected item.
  348        ToggleExpandItem,
  349    ]
  350);
  351
  352/// Activates a specific pane by its index.
  353#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  354#[action(namespace = workspace)]
  355pub struct ActivatePane(pub usize);
  356
  357/// Moves an item to a specific pane by index.
  358#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct MoveItemToPane {
  362    #[serde(default = "default_1")]
  363    pub destination: usize,
  364    #[serde(default = "default_true")]
  365    pub focus: bool,
  366    #[serde(default)]
  367    pub clone: bool,
  368}
  369
  370fn default_1() -> usize {
  371    1
  372}
  373
  374/// Moves an item to a pane in the specified direction.
  375#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  376#[action(namespace = workspace)]
  377#[serde(deny_unknown_fields)]
  378pub struct MoveItemToPaneInDirection {
  379    #[serde(default = "default_right")]
  380    pub direction: SplitDirection,
  381    #[serde(default = "default_true")]
  382    pub focus: bool,
  383    #[serde(default)]
  384    pub clone: bool,
  385}
  386
  387/// Creates a new file in a split of the desired direction.
  388#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  389#[action(namespace = workspace)]
  390#[serde(deny_unknown_fields)]
  391pub struct NewFileSplit(pub SplitDirection);
  392
  393fn default_right() -> SplitDirection {
  394    SplitDirection::Right
  395}
  396
  397/// Saves all open files in the workspace.
  398#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  399#[action(namespace = workspace)]
  400#[serde(deny_unknown_fields)]
  401pub struct SaveAll {
  402    #[serde(default)]
  403    pub save_intent: Option<SaveIntent>,
  404}
  405
  406/// Saves the current file with the specified options.
  407#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  408#[action(namespace = workspace)]
  409#[serde(deny_unknown_fields)]
  410pub struct Save {
  411    #[serde(default)]
  412    pub save_intent: Option<SaveIntent>,
  413}
  414
  415/// Moves Focus to the central panes in the workspace.
  416#[derive(Clone, Debug, PartialEq, Eq, Action)]
  417#[action(namespace = workspace)]
  418pub struct FocusCenterPane;
  419
  420///  Closes all items and panes in the workspace.
  421#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  422#[action(namespace = workspace)]
  423#[serde(deny_unknown_fields)]
  424pub struct CloseAllItemsAndPanes {
  425    #[serde(default)]
  426    pub save_intent: Option<SaveIntent>,
  427}
  428
  429/// Closes all inactive tabs and panes in the workspace.
  430#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  431#[action(namespace = workspace)]
  432#[serde(deny_unknown_fields)]
  433pub struct CloseInactiveTabsAndPanes {
  434    #[serde(default)]
  435    pub save_intent: Option<SaveIntent>,
  436}
  437
  438/// Closes the active item across all panes.
  439#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  440#[action(namespace = workspace)]
  441#[serde(deny_unknown_fields)]
  442pub struct CloseItemInAllPanes {
  443    #[serde(default)]
  444    pub save_intent: Option<SaveIntent>,
  445    #[serde(default)]
  446    pub close_pinned: bool,
  447}
  448
  449/// Sends a sequence of keystrokes to the active element.
  450#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  451#[action(namespace = workspace)]
  452pub struct SendKeystrokes(pub String);
  453
  454actions!(
  455    project_symbols,
  456    [
  457        /// Toggles the project symbols search.
  458        #[action(name = "Toggle")]
  459        ToggleProjectSymbols
  460    ]
  461);
  462
  463/// Toggles the file finder interface.
  464#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  465#[action(namespace = file_finder, name = "Toggle")]
  466#[serde(deny_unknown_fields)]
  467pub struct ToggleFileFinder {
  468    #[serde(default)]
  469    pub separate_history: bool,
  470}
  471
  472/// Opens a new terminal in the center.
  473#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  474#[action(namespace = workspace)]
  475#[serde(deny_unknown_fields)]
  476pub struct NewCenterTerminal {
  477    /// If true, creates a local terminal even in remote projects.
  478    #[serde(default)]
  479    pub local: bool,
  480}
  481
  482/// Opens a new terminal.
  483#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  484#[action(namespace = workspace)]
  485#[serde(deny_unknown_fields)]
  486pub struct NewTerminal {
  487    /// If true, creates a local terminal even in remote projects.
  488    #[serde(default)]
  489    pub local: bool,
  490}
  491
  492/// Increases size of a currently focused dock by a given amount of pixels.
  493#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  494#[action(namespace = workspace)]
  495#[serde(deny_unknown_fields)]
  496pub struct IncreaseActiveDockSize {
  497    /// For 0px parameter, uses UI font size value.
  498    #[serde(default)]
  499    pub px: u32,
  500}
  501
  502/// Decreases size of a currently focused dock by a given amount of pixels.
  503#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  504#[action(namespace = workspace)]
  505#[serde(deny_unknown_fields)]
  506pub struct DecreaseActiveDockSize {
  507    /// For 0px parameter, uses UI font size value.
  508    #[serde(default)]
  509    pub px: u32,
  510}
  511
  512/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  513#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  514#[action(namespace = workspace)]
  515#[serde(deny_unknown_fields)]
  516pub struct IncreaseOpenDocksSize {
  517    /// For 0px parameter, uses UI font size value.
  518    #[serde(default)]
  519    pub px: u32,
  520}
  521
  522/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  523#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  524#[action(namespace = workspace)]
  525#[serde(deny_unknown_fields)]
  526pub struct DecreaseOpenDocksSize {
  527    /// For 0px parameter, uses UI font size value.
  528    #[serde(default)]
  529    pub px: u32,
  530}
  531
  532actions!(
  533    workspace,
  534    [
  535        /// Activates the pane to the left.
  536        ActivatePaneLeft,
  537        /// Activates the pane to the right.
  538        ActivatePaneRight,
  539        /// Activates the pane above.
  540        ActivatePaneUp,
  541        /// Activates the pane below.
  542        ActivatePaneDown,
  543        /// Swaps the current pane with the one to the left.
  544        SwapPaneLeft,
  545        /// Swaps the current pane with the one to the right.
  546        SwapPaneRight,
  547        /// Swaps the current pane with the one above.
  548        SwapPaneUp,
  549        /// Swaps the current pane with the one below.
  550        SwapPaneDown,
  551        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  552        SwapPaneAdjacent,
  553        /// Move the current pane to be at the far left.
  554        MovePaneLeft,
  555        /// Move the current pane to be at the far right.
  556        MovePaneRight,
  557        /// Move the current pane to be at the very top.
  558        MovePaneUp,
  559        /// Move the current pane to be at the very bottom.
  560        MovePaneDown,
  561    ]
  562);
  563
  564#[derive(PartialEq, Eq, Debug)]
  565pub enum CloseIntent {
  566    /// Quit the program entirely.
  567    Quit,
  568    /// Close a window.
  569    CloseWindow,
  570    /// Replace the workspace in an existing window.
  571    ReplaceWindow,
  572}
  573
  574#[derive(Clone)]
  575pub struct Toast {
  576    id: NotificationId,
  577    msg: Cow<'static, str>,
  578    autohide: bool,
  579    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  580}
  581
  582impl Toast {
  583    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  584        Toast {
  585            id,
  586            msg: msg.into(),
  587            on_click: None,
  588            autohide: false,
  589        }
  590    }
  591
  592    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  593    where
  594        M: Into<Cow<'static, str>>,
  595        F: Fn(&mut Window, &mut App) + 'static,
  596    {
  597        self.on_click = Some((message.into(), Arc::new(on_click)));
  598        self
  599    }
  600
  601    pub fn autohide(mut self) -> Self {
  602        self.autohide = true;
  603        self
  604    }
  605}
  606
  607impl PartialEq for Toast {
  608    fn eq(&self, other: &Self) -> bool {
  609        self.id == other.id
  610            && self.msg == other.msg
  611            && self.on_click.is_some() == other.on_click.is_some()
  612    }
  613}
  614
  615/// Opens a new terminal with the specified working directory.
  616#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  617#[action(namespace = workspace)]
  618#[serde(deny_unknown_fields)]
  619pub struct OpenTerminal {
  620    pub working_directory: PathBuf,
  621    /// If true, creates a local terminal even in remote projects.
  622    #[serde(default)]
  623    pub local: bool,
  624}
  625
  626#[derive(
  627    Clone,
  628    Copy,
  629    Debug,
  630    Default,
  631    Hash,
  632    PartialEq,
  633    Eq,
  634    PartialOrd,
  635    Ord,
  636    serde::Serialize,
  637    serde::Deserialize,
  638)]
  639pub struct WorkspaceId(i64);
  640
  641impl WorkspaceId {
  642    pub fn from_i64(value: i64) -> Self {
  643        Self(value)
  644    }
  645}
  646
  647impl StaticColumnCount for WorkspaceId {}
  648impl Bind for WorkspaceId {
  649    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  650        self.0.bind(statement, start_index)
  651    }
  652}
  653impl Column for WorkspaceId {
  654    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  655        i64::column(statement, start_index)
  656            .map(|(i, next_index)| (Self(i), next_index))
  657            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  658    }
  659}
  660impl From<WorkspaceId> for i64 {
  661    fn from(val: WorkspaceId) -> Self {
  662        val.0
  663    }
  664}
  665
  666fn prompt_and_open_paths(
  667    app_state: Arc<AppState>,
  668    options: PathPromptOptions,
  669    create_new_window: bool,
  670    cx: &mut App,
  671) {
  672    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  673        workspace_window
  674            .update(cx, |multi_workspace, window, cx| {
  675                let workspace = multi_workspace.workspace().clone();
  676                workspace.update(cx, |workspace, cx| {
  677                    prompt_for_open_path_and_open(
  678                        workspace,
  679                        app_state,
  680                        options,
  681                        create_new_window,
  682                        window,
  683                        cx,
  684                    );
  685                });
  686            })
  687            .ok();
  688    } else {
  689        let task = Workspace::new_local(
  690            Vec::new(),
  691            app_state.clone(),
  692            None,
  693            None,
  694            None,
  695            OpenMode::Activate,
  696            cx,
  697        );
  698        cx.spawn(async move |cx| {
  699            let OpenResult { window, .. } = task.await?;
  700            window.update(cx, |multi_workspace, window, cx| {
  701                window.activate_window();
  702                let workspace = multi_workspace.workspace().clone();
  703                workspace.update(cx, |workspace, cx| {
  704                    prompt_for_open_path_and_open(
  705                        workspace,
  706                        app_state,
  707                        options,
  708                        create_new_window,
  709                        window,
  710                        cx,
  711                    );
  712                });
  713            })?;
  714            anyhow::Ok(())
  715        })
  716        .detach_and_log_err(cx);
  717    }
  718}
  719
  720pub fn prompt_for_open_path_and_open(
  721    workspace: &mut Workspace,
  722    app_state: Arc<AppState>,
  723    options: PathPromptOptions,
  724    create_new_window: bool,
  725    window: &mut Window,
  726    cx: &mut Context<Workspace>,
  727) {
  728    let paths = workspace.prompt_for_open_path(
  729        options,
  730        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  731        window,
  732        cx,
  733    );
  734    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  735    cx.spawn_in(window, async move |this, cx| {
  736        let Some(paths) = paths.await.log_err().flatten() else {
  737            return;
  738        };
  739        if !create_new_window {
  740            if let Some(handle) = multi_workspace_handle {
  741                if let Some(task) = handle
  742                    .update(cx, |multi_workspace, window, cx| {
  743                        multi_workspace.open_project(paths, OpenMode::Activate, window, cx)
  744                    })
  745                    .log_err()
  746                {
  747                    task.await.log_err();
  748                }
  749                return;
  750            }
  751        }
  752        if let Some(task) = this
  753            .update_in(cx, |this, window, cx| {
  754                this.open_workspace_for_paths(OpenMode::NewWindow, paths, window, cx)
  755            })
  756            .log_err()
  757        {
  758            task.await.log_err();
  759        }
  760    })
  761    .detach();
  762}
  763
  764pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  765    component::init();
  766    theme_preview::init(cx);
  767    toast_layer::init(cx);
  768    history_manager::init(app_state.fs.clone(), cx);
  769
  770    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  771        .on_action(|_: &Reload, cx| reload(cx))
  772        .on_action(|action: &Open, cx: &mut App| {
  773            let app_state = AppState::global(cx);
  774            prompt_and_open_paths(
  775                app_state,
  776                PathPromptOptions {
  777                    files: true,
  778                    directories: true,
  779                    multiple: true,
  780                    prompt: None,
  781                },
  782                action.create_new_window,
  783                cx,
  784            );
  785        })
  786        .on_action(|_: &OpenFiles, cx: &mut App| {
  787            let directories = cx.can_select_mixed_files_and_dirs();
  788            let app_state = AppState::global(cx);
  789            prompt_and_open_paths(
  790                app_state,
  791                PathPromptOptions {
  792                    files: true,
  793                    directories,
  794                    multiple: true,
  795                    prompt: None,
  796                },
  797                true,
  798                cx,
  799            );
  800        });
  801}
  802
  803type BuildProjectItemFn =
  804    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  805
  806type BuildProjectItemForPathFn =
  807    fn(
  808        &Entity<Project>,
  809        &ProjectPath,
  810        &mut Window,
  811        &mut App,
  812    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  813
  814#[derive(Clone, Default)]
  815struct ProjectItemRegistry {
  816    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  817    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  818}
  819
  820impl ProjectItemRegistry {
  821    fn register<T: ProjectItem>(&mut self) {
  822        self.build_project_item_fns_by_type.insert(
  823            TypeId::of::<T::Item>(),
  824            |item, project, pane, window, cx| {
  825                let item = item.downcast().unwrap();
  826                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  827                    as Box<dyn ItemHandle>
  828            },
  829        );
  830        self.build_project_item_for_path_fns
  831            .push(|project, project_path, window, cx| {
  832                let project_path = project_path.clone();
  833                let is_file = project
  834                    .read(cx)
  835                    .entry_for_path(&project_path, cx)
  836                    .is_some_and(|entry| entry.is_file());
  837                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  838                let is_local = project.read(cx).is_local();
  839                let project_item =
  840                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  841                let project = project.clone();
  842                Some(window.spawn(cx, async move |cx| {
  843                    match project_item.await.with_context(|| {
  844                        format!(
  845                            "opening project path {:?}",
  846                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  847                        )
  848                    }) {
  849                        Ok(project_item) => {
  850                            let project_item = project_item;
  851                            let project_entry_id: Option<ProjectEntryId> =
  852                                project_item.read_with(cx, project::ProjectItem::entry_id);
  853                            let build_workspace_item = Box::new(
  854                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  855                                    Box::new(cx.new(|cx| {
  856                                        T::for_project_item(
  857                                            project,
  858                                            Some(pane),
  859                                            project_item,
  860                                            window,
  861                                            cx,
  862                                        )
  863                                    })) as Box<dyn ItemHandle>
  864                                },
  865                            ) as Box<_>;
  866                            Ok((project_entry_id, build_workspace_item))
  867                        }
  868                        Err(e) => {
  869                            log::warn!("Failed to open a project item: {e:#}");
  870                            if e.error_code() == ErrorCode::Internal {
  871                                if let Some(abs_path) =
  872                                    entry_abs_path.as_deref().filter(|_| is_file)
  873                                {
  874                                    if let Some(broken_project_item_view) =
  875                                        cx.update(|window, cx| {
  876                                            T::for_broken_project_item(
  877                                                abs_path, is_local, &e, window, cx,
  878                                            )
  879                                        })?
  880                                    {
  881                                        let build_workspace_item = Box::new(
  882                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  883                                                cx.new(|_| broken_project_item_view).boxed_clone()
  884                                            },
  885                                        )
  886                                        as Box<_>;
  887                                        return Ok((None, build_workspace_item));
  888                                    }
  889                                }
  890                            }
  891                            Err(e)
  892                        }
  893                    }
  894                }))
  895            });
  896    }
  897
  898    fn open_path(
  899        &self,
  900        project: &Entity<Project>,
  901        path: &ProjectPath,
  902        window: &mut Window,
  903        cx: &mut App,
  904    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  905        let Some(open_project_item) = self
  906            .build_project_item_for_path_fns
  907            .iter()
  908            .rev()
  909            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  910        else {
  911            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  912        };
  913        open_project_item
  914    }
  915
  916    fn build_item<T: project::ProjectItem>(
  917        &self,
  918        item: Entity<T>,
  919        project: Entity<Project>,
  920        pane: Option<&Pane>,
  921        window: &mut Window,
  922        cx: &mut App,
  923    ) -> Option<Box<dyn ItemHandle>> {
  924        let build = self
  925            .build_project_item_fns_by_type
  926            .get(&TypeId::of::<T>())?;
  927        Some(build(item.into_any(), project, pane, window, cx))
  928    }
  929}
  930
  931type WorkspaceItemBuilder =
  932    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  933
  934impl Global for ProjectItemRegistry {}
  935
  936/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  937/// items will get a chance to open the file, starting from the project item that
  938/// was added last.
  939pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  940    cx.default_global::<ProjectItemRegistry>().register::<I>();
  941}
  942
  943#[derive(Default)]
  944pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  945
  946struct FollowableViewDescriptor {
  947    from_state_proto: fn(
  948        Entity<Workspace>,
  949        ViewId,
  950        &mut Option<proto::view::Variant>,
  951        &mut Window,
  952        &mut App,
  953    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  954    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  955}
  956
  957impl Global for FollowableViewRegistry {}
  958
  959impl FollowableViewRegistry {
  960    pub fn register<I: FollowableItem>(cx: &mut App) {
  961        cx.default_global::<Self>().0.insert(
  962            TypeId::of::<I>(),
  963            FollowableViewDescriptor {
  964                from_state_proto: |workspace, id, state, window, cx| {
  965                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  966                        cx.foreground_executor()
  967                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  968                    })
  969                },
  970                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  971            },
  972        );
  973    }
  974
  975    pub fn from_state_proto(
  976        workspace: Entity<Workspace>,
  977        view_id: ViewId,
  978        mut state: Option<proto::view::Variant>,
  979        window: &mut Window,
  980        cx: &mut App,
  981    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  982        cx.update_default_global(|this: &mut Self, cx| {
  983            this.0.values().find_map(|descriptor| {
  984                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  985            })
  986        })
  987    }
  988
  989    pub fn to_followable_view(
  990        view: impl Into<AnyView>,
  991        cx: &App,
  992    ) -> Option<Box<dyn FollowableItemHandle>> {
  993        let this = cx.try_global::<Self>()?;
  994        let view = view.into();
  995        let descriptor = this.0.get(&view.entity_type())?;
  996        Some((descriptor.to_followable_view)(&view))
  997    }
  998}
  999
 1000#[derive(Copy, Clone)]
 1001struct SerializableItemDescriptor {
 1002    deserialize: fn(
 1003        Entity<Project>,
 1004        WeakEntity<Workspace>,
 1005        WorkspaceId,
 1006        ItemId,
 1007        &mut Window,
 1008        &mut Context<Pane>,
 1009    ) -> Task<Result<Box<dyn ItemHandle>>>,
 1010    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
 1011    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
 1012}
 1013
 1014#[derive(Default)]
 1015struct SerializableItemRegistry {
 1016    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
 1017    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
 1018}
 1019
 1020impl Global for SerializableItemRegistry {}
 1021
 1022impl SerializableItemRegistry {
 1023    fn deserialize(
 1024        item_kind: &str,
 1025        project: Entity<Project>,
 1026        workspace: WeakEntity<Workspace>,
 1027        workspace_id: WorkspaceId,
 1028        item_item: ItemId,
 1029        window: &mut Window,
 1030        cx: &mut Context<Pane>,
 1031    ) -> Task<Result<Box<dyn ItemHandle>>> {
 1032        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1033            return Task::ready(Err(anyhow!(
 1034                "cannot deserialize {}, descriptor not found",
 1035                item_kind
 1036            )));
 1037        };
 1038
 1039        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1040    }
 1041
 1042    fn cleanup(
 1043        item_kind: &str,
 1044        workspace_id: WorkspaceId,
 1045        loaded_items: Vec<ItemId>,
 1046        window: &mut Window,
 1047        cx: &mut App,
 1048    ) -> Task<Result<()>> {
 1049        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1050            return Task::ready(Err(anyhow!(
 1051                "cannot cleanup {}, descriptor not found",
 1052                item_kind
 1053            )));
 1054        };
 1055
 1056        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1057    }
 1058
 1059    fn view_to_serializable_item_handle(
 1060        view: AnyView,
 1061        cx: &App,
 1062    ) -> Option<Box<dyn SerializableItemHandle>> {
 1063        let this = cx.try_global::<Self>()?;
 1064        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1065        Some((descriptor.view_to_serializable_item)(view))
 1066    }
 1067
 1068    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1069        let this = cx.try_global::<Self>()?;
 1070        this.descriptors_by_kind.get(item_kind).copied()
 1071    }
 1072}
 1073
 1074pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1075    let serialized_item_kind = I::serialized_item_kind();
 1076
 1077    let registry = cx.default_global::<SerializableItemRegistry>();
 1078    let descriptor = SerializableItemDescriptor {
 1079        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1080            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1081            cx.foreground_executor()
 1082                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1083        },
 1084        cleanup: |workspace_id, loaded_items, window, cx| {
 1085            I::cleanup(workspace_id, loaded_items, window, cx)
 1086        },
 1087        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1088    };
 1089    registry
 1090        .descriptors_by_kind
 1091        .insert(Arc::from(serialized_item_kind), descriptor);
 1092    registry
 1093        .descriptors_by_type
 1094        .insert(TypeId::of::<I>(), descriptor);
 1095}
 1096
 1097pub struct AppState {
 1098    pub languages: Arc<LanguageRegistry>,
 1099    pub client: Arc<Client>,
 1100    pub user_store: Entity<UserStore>,
 1101    pub workspace_store: Entity<WorkspaceStore>,
 1102    pub fs: Arc<dyn fs::Fs>,
 1103    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1104    pub node_runtime: NodeRuntime,
 1105    pub session: Entity<AppSession>,
 1106}
 1107
 1108struct GlobalAppState(Arc<AppState>);
 1109
 1110impl Global for GlobalAppState {}
 1111
 1112pub struct WorkspaceStore {
 1113    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1114    client: Arc<Client>,
 1115    _subscriptions: Vec<client::Subscription>,
 1116}
 1117
 1118#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1119pub enum CollaboratorId {
 1120    PeerId(PeerId),
 1121    Agent,
 1122}
 1123
 1124impl From<PeerId> for CollaboratorId {
 1125    fn from(peer_id: PeerId) -> Self {
 1126        CollaboratorId::PeerId(peer_id)
 1127    }
 1128}
 1129
 1130impl From<&PeerId> for CollaboratorId {
 1131    fn from(peer_id: &PeerId) -> Self {
 1132        CollaboratorId::PeerId(*peer_id)
 1133    }
 1134}
 1135
 1136#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1137struct Follower {
 1138    project_id: Option<u64>,
 1139    peer_id: PeerId,
 1140}
 1141
 1142impl AppState {
 1143    #[track_caller]
 1144    pub fn global(cx: &App) -> Arc<Self> {
 1145        cx.global::<GlobalAppState>().0.clone()
 1146    }
 1147    pub fn try_global(cx: &App) -> Option<Arc<Self>> {
 1148        cx.try_global::<GlobalAppState>()
 1149            .map(|state| state.0.clone())
 1150    }
 1151    pub fn set_global(state: Arc<AppState>, cx: &mut App) {
 1152        cx.set_global(GlobalAppState(state));
 1153    }
 1154
 1155    #[cfg(any(test, feature = "test-support"))]
 1156    pub fn test(cx: &mut App) -> Arc<Self> {
 1157        use fs::Fs;
 1158        use node_runtime::NodeRuntime;
 1159        use session::Session;
 1160        use settings::SettingsStore;
 1161
 1162        if !cx.has_global::<SettingsStore>() {
 1163            let settings_store = SettingsStore::test(cx);
 1164            cx.set_global(settings_store);
 1165        }
 1166
 1167        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1168        <dyn Fs>::set_global(fs.clone(), cx);
 1169        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1170        let clock = Arc::new(clock::FakeSystemClock::new());
 1171        let http_client = http_client::FakeHttpClient::with_404_response();
 1172        let client = Client::new(clock, http_client, cx);
 1173        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1174        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1175        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1176
 1177        theme_settings::init(theme::LoadThemes::JustBase, cx);
 1178        client::init(&client, cx);
 1179
 1180        Arc::new(Self {
 1181            client,
 1182            fs,
 1183            languages,
 1184            user_store,
 1185            workspace_store,
 1186            node_runtime: NodeRuntime::unavailable(),
 1187            build_window_options: |_, _| Default::default(),
 1188            session,
 1189        })
 1190    }
 1191}
 1192
 1193struct DelayedDebouncedEditAction {
 1194    task: Option<Task<()>>,
 1195    cancel_channel: Option<oneshot::Sender<()>>,
 1196}
 1197
 1198impl DelayedDebouncedEditAction {
 1199    fn new() -> DelayedDebouncedEditAction {
 1200        DelayedDebouncedEditAction {
 1201            task: None,
 1202            cancel_channel: None,
 1203        }
 1204    }
 1205
 1206    fn fire_new<F>(
 1207        &mut self,
 1208        delay: Duration,
 1209        window: &mut Window,
 1210        cx: &mut Context<Workspace>,
 1211        func: F,
 1212    ) where
 1213        F: 'static
 1214            + Send
 1215            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1216    {
 1217        if let Some(channel) = self.cancel_channel.take() {
 1218            _ = channel.send(());
 1219        }
 1220
 1221        let (sender, mut receiver) = oneshot::channel::<()>();
 1222        self.cancel_channel = Some(sender);
 1223
 1224        let previous_task = self.task.take();
 1225        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1226            let mut timer = cx.background_executor().timer(delay).fuse();
 1227            if let Some(previous_task) = previous_task {
 1228                previous_task.await;
 1229            }
 1230
 1231            futures::select_biased! {
 1232                _ = receiver => return,
 1233                    _ = timer => {}
 1234            }
 1235
 1236            if let Some(result) = workspace
 1237                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1238                .log_err()
 1239            {
 1240                result.await.log_err();
 1241            }
 1242        }));
 1243    }
 1244}
 1245
 1246pub enum Event {
 1247    PaneAdded(Entity<Pane>),
 1248    PaneRemoved,
 1249    ItemAdded {
 1250        item: Box<dyn ItemHandle>,
 1251    },
 1252    ActiveItemChanged,
 1253    ItemRemoved {
 1254        item_id: EntityId,
 1255    },
 1256    UserSavedItem {
 1257        pane: WeakEntity<Pane>,
 1258        item: Box<dyn WeakItemHandle>,
 1259        save_intent: SaveIntent,
 1260    },
 1261    ContactRequestedJoin(u64),
 1262    WorkspaceCreated(WeakEntity<Workspace>),
 1263    OpenBundledFile {
 1264        text: Cow<'static, str>,
 1265        title: &'static str,
 1266        language: &'static str,
 1267    },
 1268    ZoomChanged,
 1269    ModalOpened,
 1270    Activate,
 1271    PanelAdded(AnyView),
 1272}
 1273
 1274#[derive(Debug, Clone)]
 1275pub enum OpenVisible {
 1276    All,
 1277    None,
 1278    OnlyFiles,
 1279    OnlyDirectories,
 1280}
 1281
 1282enum WorkspaceLocation {
 1283    // Valid local paths or SSH project to serialize
 1284    Location(SerializedWorkspaceLocation, PathList),
 1285    // No valid location found hence clear session id
 1286    DetachFromSession,
 1287    // No valid location found to serialize
 1288    None,
 1289}
 1290
 1291type PromptForNewPath = Box<
 1292    dyn Fn(
 1293        &mut Workspace,
 1294        DirectoryLister,
 1295        Option<String>,
 1296        &mut Window,
 1297        &mut Context<Workspace>,
 1298    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1299>;
 1300
 1301type PromptForOpenPath = Box<
 1302    dyn Fn(
 1303        &mut Workspace,
 1304        DirectoryLister,
 1305        &mut Window,
 1306        &mut Context<Workspace>,
 1307    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1308>;
 1309
 1310#[derive(Default)]
 1311struct DispatchingKeystrokes {
 1312    dispatched: HashSet<Vec<Keystroke>>,
 1313    queue: VecDeque<Keystroke>,
 1314    task: Option<Shared<Task<()>>>,
 1315}
 1316
 1317/// Collects everything project-related for a certain window opened.
 1318/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1319///
 1320/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1321/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1322/// that can be used to register a global action to be triggered from any place in the window.
 1323pub struct Workspace {
 1324    weak_self: WeakEntity<Self>,
 1325    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1326    zoomed: Option<AnyWeakView>,
 1327    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1328    zoomed_position: Option<DockPosition>,
 1329    center: PaneGroup,
 1330    left_dock: Entity<Dock>,
 1331    bottom_dock: Entity<Dock>,
 1332    right_dock: Entity<Dock>,
 1333    panes: Vec<Entity<Pane>>,
 1334    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1335    active_pane: Entity<Pane>,
 1336    last_active_center_pane: Option<WeakEntity<Pane>>,
 1337    last_active_view_id: Option<proto::ViewId>,
 1338    status_bar: Entity<StatusBar>,
 1339    pub(crate) modal_layer: Entity<ModalLayer>,
 1340    toast_layer: Entity<ToastLayer>,
 1341    titlebar_item: Option<AnyView>,
 1342    notifications: Notifications,
 1343    suppressed_notifications: HashSet<NotificationId>,
 1344    project: Entity<Project>,
 1345    follower_states: HashMap<CollaboratorId, FollowerState>,
 1346    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1347    window_edited: bool,
 1348    last_window_title: Option<String>,
 1349    dirty_items: HashMap<EntityId, Subscription>,
 1350    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1351    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1352    database_id: Option<WorkspaceId>,
 1353    app_state: Arc<AppState>,
 1354    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1355    _subscriptions: Vec<Subscription>,
 1356    _apply_leader_updates: Task<Result<()>>,
 1357    _observe_current_user: Task<Result<()>>,
 1358    _schedule_serialize_workspace: Option<Task<()>>,
 1359    _serialize_workspace_task: Option<Task<()>>,
 1360    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1361    pane_history_timestamp: Arc<AtomicUsize>,
 1362    bounds: Bounds<Pixels>,
 1363    pub centered_layout: bool,
 1364    bounds_save_task_queued: Option<Task<()>>,
 1365    on_prompt_for_new_path: Option<PromptForNewPath>,
 1366    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1367    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1368    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1369    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1370    _items_serializer: Task<Result<()>>,
 1371    session_id: Option<String>,
 1372    scheduled_tasks: Vec<Task<()>>,
 1373    last_open_dock_positions: Vec<DockPosition>,
 1374    removing: bool,
 1375    open_in_dev_container: bool,
 1376    _dev_container_task: Option<Task<Result<()>>>,
 1377    _panels_task: Option<Task<Result<()>>>,
 1378    sidebar_focus_handle: Option<FocusHandle>,
 1379    multi_workspace: Option<WeakEntity<MultiWorkspace>>,
 1380}
 1381
 1382impl EventEmitter<Event> for Workspace {}
 1383
 1384#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1385pub struct ViewId {
 1386    pub creator: CollaboratorId,
 1387    pub id: u64,
 1388}
 1389
 1390pub struct FollowerState {
 1391    center_pane: Entity<Pane>,
 1392    dock_pane: Option<Entity<Pane>>,
 1393    active_view_id: Option<ViewId>,
 1394    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1395}
 1396
 1397struct FollowerView {
 1398    view: Box<dyn FollowableItemHandle>,
 1399    location: Option<proto::PanelId>,
 1400}
 1401
 1402#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 1403pub enum OpenMode {
 1404    /// Open the workspace in a new window.
 1405    NewWindow,
 1406    /// Add to the window's multi workspace without activating it (used during deserialization).
 1407    Add,
 1408    /// Add to the window's multi workspace and activate it.
 1409    #[default]
 1410    Activate,
 1411}
 1412
 1413impl Workspace {
 1414    pub fn new(
 1415        workspace_id: Option<WorkspaceId>,
 1416        project: Entity<Project>,
 1417        app_state: Arc<AppState>,
 1418        window: &mut Window,
 1419        cx: &mut Context<Self>,
 1420    ) -> Self {
 1421        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1422            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1423                if let TrustedWorktreesEvent::Trusted(..) = e {
 1424                    // Do not persist auto trusted worktrees
 1425                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1426                        worktrees_store.update(cx, |worktrees_store, cx| {
 1427                            worktrees_store.schedule_serialization(
 1428                                cx,
 1429                                |new_trusted_worktrees, cx| {
 1430                                    let timeout =
 1431                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1432                                    let db = WorkspaceDb::global(cx);
 1433                                    cx.background_spawn(async move {
 1434                                        timeout.await;
 1435                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1436                                            .await
 1437                                            .log_err();
 1438                                    })
 1439                                },
 1440                            )
 1441                        });
 1442                    }
 1443                }
 1444            })
 1445            .detach();
 1446
 1447            cx.observe_global::<SettingsStore>(|_, cx| {
 1448                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1449                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1450                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1451                            trusted_worktrees.auto_trust_all(cx);
 1452                        })
 1453                    }
 1454                }
 1455            })
 1456            .detach();
 1457        }
 1458
 1459        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1460            match event {
 1461                project::Event::RemoteIdChanged(_) => {
 1462                    this.update_window_title(window, cx);
 1463                }
 1464
 1465                project::Event::CollaboratorLeft(peer_id) => {
 1466                    this.collaborator_left(*peer_id, window, cx);
 1467                }
 1468
 1469                &project::Event::WorktreeRemoved(_) => {
 1470                    this.update_window_title(window, cx);
 1471                    this.serialize_workspace(window, cx);
 1472                    this.update_history(cx);
 1473                }
 1474
 1475                &project::Event::WorktreeAdded(id) => {
 1476                    this.update_window_title(window, cx);
 1477                    if this
 1478                        .project()
 1479                        .read(cx)
 1480                        .worktree_for_id(id, cx)
 1481                        .is_some_and(|wt| wt.read(cx).is_visible())
 1482                    {
 1483                        this.serialize_workspace(window, cx);
 1484                        this.update_history(cx);
 1485                    }
 1486                }
 1487                project::Event::WorktreeUpdatedEntries(..) => {
 1488                    this.update_window_title(window, cx);
 1489                    this.serialize_workspace(window, cx);
 1490                }
 1491
 1492                project::Event::DisconnectedFromHost => {
 1493                    this.update_window_edited(window, cx);
 1494                    let leaders_to_unfollow =
 1495                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1496                    for leader_id in leaders_to_unfollow {
 1497                        this.unfollow(leader_id, window, cx);
 1498                    }
 1499                }
 1500
 1501                project::Event::DisconnectedFromRemote {
 1502                    server_not_running: _,
 1503                } => {
 1504                    this.update_window_edited(window, cx);
 1505                }
 1506
 1507                project::Event::Closed => {
 1508                    window.remove_window();
 1509                }
 1510
 1511                project::Event::DeletedEntry(_, entry_id) => {
 1512                    for pane in this.panes.iter() {
 1513                        pane.update(cx, |pane, cx| {
 1514                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1515                        });
 1516                    }
 1517                }
 1518
 1519                project::Event::Toast {
 1520                    notification_id,
 1521                    message,
 1522                    link,
 1523                } => this.show_notification(
 1524                    NotificationId::named(notification_id.clone()),
 1525                    cx,
 1526                    |cx| {
 1527                        let mut notification = MessageNotification::new(message.clone(), cx);
 1528                        if let Some(link) = link {
 1529                            notification = notification
 1530                                .more_info_message(link.label)
 1531                                .more_info_url(link.url);
 1532                        }
 1533
 1534                        cx.new(|_| notification)
 1535                    },
 1536                ),
 1537
 1538                project::Event::HideToast { notification_id } => {
 1539                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1540                }
 1541
 1542                project::Event::LanguageServerPrompt(request) => {
 1543                    struct LanguageServerPrompt;
 1544
 1545                    this.show_notification(
 1546                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1547                        cx,
 1548                        |cx| {
 1549                            cx.new(|cx| {
 1550                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1551                            })
 1552                        },
 1553                    );
 1554                }
 1555
 1556                project::Event::AgentLocationChanged => {
 1557                    this.handle_agent_location_changed(window, cx)
 1558                }
 1559
 1560                _ => {}
 1561            }
 1562            cx.notify()
 1563        })
 1564        .detach();
 1565
 1566        cx.subscribe_in(
 1567            &project.read(cx).breakpoint_store(),
 1568            window,
 1569            |workspace, _, event, window, cx| match event {
 1570                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1571                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1572                    workspace.serialize_workspace(window, cx);
 1573                }
 1574                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1575            },
 1576        )
 1577        .detach();
 1578        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1579            cx.subscribe_in(
 1580                &toolchain_store,
 1581                window,
 1582                |workspace, _, event, window, cx| match event {
 1583                    ToolchainStoreEvent::CustomToolchainsModified => {
 1584                        workspace.serialize_workspace(window, cx);
 1585                    }
 1586                    _ => {}
 1587                },
 1588            )
 1589            .detach();
 1590        }
 1591
 1592        cx.on_focus_lost(window, |this, window, cx| {
 1593            let focus_handle = this.focus_handle(cx);
 1594            window.focus(&focus_handle, cx);
 1595        })
 1596        .detach();
 1597
 1598        let weak_handle = cx.entity().downgrade();
 1599        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1600
 1601        let center_pane = cx.new(|cx| {
 1602            let mut center_pane = Pane::new(
 1603                weak_handle.clone(),
 1604                project.clone(),
 1605                pane_history_timestamp.clone(),
 1606                None,
 1607                NewFile.boxed_clone(),
 1608                true,
 1609                window,
 1610                cx,
 1611            );
 1612            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1613            center_pane.set_should_display_welcome_page(true);
 1614            center_pane
 1615        });
 1616        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1617            .detach();
 1618
 1619        window.focus(&center_pane.focus_handle(cx), cx);
 1620
 1621        cx.emit(Event::PaneAdded(center_pane.clone()));
 1622
 1623        let any_window_handle = window.window_handle();
 1624        app_state.workspace_store.update(cx, |store, _| {
 1625            store
 1626                .workspaces
 1627                .insert((any_window_handle, weak_handle.clone()));
 1628        });
 1629
 1630        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1631        let mut connection_status = app_state.client.status();
 1632        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1633            current_user.next().await;
 1634            connection_status.next().await;
 1635            let mut stream =
 1636                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1637
 1638            while stream.recv().await.is_some() {
 1639                this.update(cx, |_, cx| cx.notify())?;
 1640            }
 1641            anyhow::Ok(())
 1642        });
 1643
 1644        // All leader updates are enqueued and then processed in a single task, so
 1645        // that each asynchronous operation can be run in order.
 1646        let (leader_updates_tx, mut leader_updates_rx) =
 1647            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1648        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1649            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1650                Self::process_leader_update(&this, leader_id, update, cx)
 1651                    .await
 1652                    .log_err();
 1653            }
 1654
 1655            Ok(())
 1656        });
 1657
 1658        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1659        let modal_layer = cx.new(|_| ModalLayer::new());
 1660        let toast_layer = cx.new(|_| ToastLayer::new());
 1661        cx.subscribe(
 1662            &modal_layer,
 1663            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1664                cx.emit(Event::ModalOpened);
 1665            },
 1666        )
 1667        .detach();
 1668
 1669        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1670        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1671        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1672        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1673        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1674        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1675        let multi_workspace = window
 1676            .root::<MultiWorkspace>()
 1677            .flatten()
 1678            .map(|mw| mw.downgrade());
 1679        let status_bar = cx.new(|cx| {
 1680            let mut status_bar =
 1681                StatusBar::new(&center_pane.clone(), multi_workspace.clone(), window, cx);
 1682            status_bar.add_left_item(left_dock_buttons, window, cx);
 1683            status_bar.add_right_item(right_dock_buttons, window, cx);
 1684            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1685            status_bar
 1686        });
 1687
 1688        let session_id = app_state.session.read(cx).id().to_owned();
 1689
 1690        let mut active_call = None;
 1691        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1692            let subscriptions =
 1693                vec![
 1694                    call.0
 1695                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1696                ];
 1697            active_call = Some((call, subscriptions));
 1698        }
 1699
 1700        let (serializable_items_tx, serializable_items_rx) =
 1701            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1702        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1703            Self::serialize_items(&this, serializable_items_rx, cx).await
 1704        });
 1705
 1706        let subscriptions = vec![
 1707            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1708            cx.observe_window_bounds(window, move |this, window, cx| {
 1709                if this.bounds_save_task_queued.is_some() {
 1710                    return;
 1711                }
 1712                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1713                    cx.background_executor()
 1714                        .timer(Duration::from_millis(100))
 1715                        .await;
 1716                    this.update_in(cx, |this, window, cx| {
 1717                        this.save_window_bounds(window, cx).detach();
 1718                        this.bounds_save_task_queued.take();
 1719                    })
 1720                    .ok();
 1721                }));
 1722                cx.notify();
 1723            }),
 1724            cx.observe_window_appearance(window, |_, window, cx| {
 1725                let window_appearance = window.appearance();
 1726
 1727                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1728
 1729                theme_settings::reload_theme(cx);
 1730                theme_settings::reload_icon_theme(cx);
 1731            }),
 1732            cx.on_release({
 1733                let weak_handle = weak_handle.clone();
 1734                move |this, cx| {
 1735                    this.app_state.workspace_store.update(cx, move |store, _| {
 1736                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1737                    })
 1738                }
 1739            }),
 1740        ];
 1741
 1742        cx.defer_in(window, move |this, window, cx| {
 1743            this.update_window_title(window, cx);
 1744            this.show_initial_notifications(cx);
 1745        });
 1746
 1747        let mut center = PaneGroup::new(center_pane.clone());
 1748        center.set_is_center(true);
 1749        center.mark_positions(cx);
 1750
 1751        Workspace {
 1752            weak_self: weak_handle.clone(),
 1753            zoomed: None,
 1754            zoomed_position: None,
 1755            previous_dock_drag_coordinates: None,
 1756            center,
 1757            panes: vec![center_pane.clone()],
 1758            panes_by_item: Default::default(),
 1759            active_pane: center_pane.clone(),
 1760            last_active_center_pane: Some(center_pane.downgrade()),
 1761            last_active_view_id: None,
 1762            status_bar,
 1763            modal_layer,
 1764            toast_layer,
 1765            titlebar_item: None,
 1766            notifications: Notifications::default(),
 1767            suppressed_notifications: HashSet::default(),
 1768            left_dock,
 1769            bottom_dock,
 1770            right_dock,
 1771            _panels_task: None,
 1772            project: project.clone(),
 1773            follower_states: Default::default(),
 1774            last_leaders_by_pane: Default::default(),
 1775            dispatching_keystrokes: Default::default(),
 1776            window_edited: false,
 1777            last_window_title: None,
 1778            dirty_items: Default::default(),
 1779            active_call,
 1780            database_id: workspace_id,
 1781            app_state,
 1782            _observe_current_user,
 1783            _apply_leader_updates,
 1784            _schedule_serialize_workspace: None,
 1785            _serialize_workspace_task: None,
 1786            _schedule_serialize_ssh_paths: None,
 1787            leader_updates_tx,
 1788            _subscriptions: subscriptions,
 1789            pane_history_timestamp,
 1790            workspace_actions: Default::default(),
 1791            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1792            bounds: Default::default(),
 1793            centered_layout: false,
 1794            bounds_save_task_queued: None,
 1795            on_prompt_for_new_path: None,
 1796            on_prompt_for_open_path: None,
 1797            terminal_provider: None,
 1798            debugger_provider: None,
 1799            serializable_items_tx,
 1800            _items_serializer,
 1801            session_id: Some(session_id),
 1802
 1803            scheduled_tasks: Vec::new(),
 1804            last_open_dock_positions: Vec::new(),
 1805            removing: false,
 1806            sidebar_focus_handle: None,
 1807            multi_workspace,
 1808            open_in_dev_container: false,
 1809            _dev_container_task: None,
 1810        }
 1811    }
 1812
 1813    pub fn new_local(
 1814        abs_paths: Vec<PathBuf>,
 1815        app_state: Arc<AppState>,
 1816        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1817        env: Option<HashMap<String, String>>,
 1818        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1819        open_mode: OpenMode,
 1820        cx: &mut App,
 1821    ) -> Task<anyhow::Result<OpenResult>> {
 1822        let project_handle = Project::local(
 1823            app_state.client.clone(),
 1824            app_state.node_runtime.clone(),
 1825            app_state.user_store.clone(),
 1826            app_state.languages.clone(),
 1827            app_state.fs.clone(),
 1828            env,
 1829            Default::default(),
 1830            cx,
 1831        );
 1832
 1833        let db = WorkspaceDb::global(cx);
 1834        let kvp = db::kvp::KeyValueStore::global(cx);
 1835        cx.spawn(async move |cx| {
 1836            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1837            for path in abs_paths.into_iter() {
 1838                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1839                    paths_to_open.push(canonical)
 1840                } else {
 1841                    paths_to_open.push(path)
 1842                }
 1843            }
 1844
 1845            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1846
 1847            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1848                paths_to_open = paths.ordered_paths().cloned().collect();
 1849                if !paths.is_lexicographically_ordered() {
 1850                    project_handle.update(cx, |project, cx| {
 1851                        project.set_worktrees_reordered(true, cx);
 1852                    });
 1853                }
 1854            }
 1855
 1856            // Get project paths for all of the abs_paths
 1857            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1858                Vec::with_capacity(paths_to_open.len());
 1859
 1860            for path in paths_to_open.into_iter() {
 1861                if let Some((_, project_entry)) = cx
 1862                    .update(|cx| {
 1863                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1864                    })
 1865                    .await
 1866                    .log_err()
 1867                {
 1868                    project_paths.push((path, Some(project_entry)));
 1869                } else {
 1870                    project_paths.push((path, None));
 1871                }
 1872            }
 1873
 1874            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1875                serialized_workspace.id
 1876            } else {
 1877                db.next_id().await.unwrap_or_else(|_| Default::default())
 1878            };
 1879
 1880            let toolchains = db.toolchains(workspace_id).await?;
 1881
 1882            for (toolchain, worktree_path, path) in toolchains {
 1883                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1884                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1885                    this.find_worktree(&worktree_path, cx)
 1886                        .and_then(|(worktree, rel_path)| {
 1887                            if rel_path.is_empty() {
 1888                                Some(worktree.read(cx).id())
 1889                            } else {
 1890                                None
 1891                            }
 1892                        })
 1893                }) else {
 1894                    // We did not find a worktree with a given path, but that's whatever.
 1895                    continue;
 1896                };
 1897                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1898                    continue;
 1899                }
 1900
 1901                project_handle
 1902                    .update(cx, |this, cx| {
 1903                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1904                    })
 1905                    .await;
 1906            }
 1907            if let Some(workspace) = serialized_workspace.as_ref() {
 1908                project_handle.update(cx, |this, cx| {
 1909                    for (scope, toolchains) in &workspace.user_toolchains {
 1910                        for toolchain in toolchains {
 1911                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1912                        }
 1913                    }
 1914                });
 1915            }
 1916
 1917            let window_to_replace = match open_mode {
 1918                OpenMode::NewWindow => None,
 1919                _ => requesting_window,
 1920            };
 1921
 1922            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1923                if let Some(window) = window_to_replace {
 1924                    let centered_layout = serialized_workspace
 1925                        .as_ref()
 1926                        .map(|w| w.centered_layout)
 1927                        .unwrap_or(false);
 1928
 1929                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1930                        let workspace = cx.new(|cx| {
 1931                            let mut workspace = Workspace::new(
 1932                                Some(workspace_id),
 1933                                project_handle.clone(),
 1934                                app_state.clone(),
 1935                                window,
 1936                                cx,
 1937                            );
 1938
 1939                            workspace.centered_layout = centered_layout;
 1940
 1941                            // Call init callback to add items before window renders
 1942                            if let Some(init) = init {
 1943                                init(&mut workspace, window, cx);
 1944                            }
 1945
 1946                            workspace
 1947                        });
 1948                        match open_mode {
 1949                            OpenMode::Activate => {
 1950                                multi_workspace.activate(workspace.clone(), window, cx);
 1951                            }
 1952                            OpenMode::Add => {
 1953                                multi_workspace.add(workspace.clone(), &*window, cx);
 1954                            }
 1955                            OpenMode::NewWindow => {
 1956                                unreachable!()
 1957                            }
 1958                        }
 1959                        workspace
 1960                    })?;
 1961                    (window, workspace)
 1962                } else {
 1963                    let window_bounds_override = window_bounds_env_override();
 1964
 1965                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1966                        (Some(WindowBounds::Windowed(bounds)), None)
 1967                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1968                        && let Some(display) = workspace.display
 1969                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1970                    {
 1971                        // Reopening an existing workspace - restore its saved bounds
 1972                        (Some(bounds.0), Some(display))
 1973                    } else if let Some((display, bounds)) =
 1974                        persistence::read_default_window_bounds(&kvp)
 1975                    {
 1976                        // New or empty workspace - use the last known window bounds
 1977                        (Some(bounds), Some(display))
 1978                    } else {
 1979                        // New window - let GPUI's default_bounds() handle cascading
 1980                        (None, None)
 1981                    };
 1982
 1983                    // Use the serialized workspace to construct the new window
 1984                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1985                    options.window_bounds = window_bounds;
 1986                    let centered_layout = serialized_workspace
 1987                        .as_ref()
 1988                        .map(|w| w.centered_layout)
 1989                        .unwrap_or(false);
 1990                    let window = cx.open_window(options, {
 1991                        let app_state = app_state.clone();
 1992                        let project_handle = project_handle.clone();
 1993                        move |window, cx| {
 1994                            let workspace = cx.new(|cx| {
 1995                                let mut workspace = Workspace::new(
 1996                                    Some(workspace_id),
 1997                                    project_handle,
 1998                                    app_state,
 1999                                    window,
 2000                                    cx,
 2001                                );
 2002                                workspace.centered_layout = centered_layout;
 2003
 2004                                // Call init callback to add items before window renders
 2005                                if let Some(init) = init {
 2006                                    init(&mut workspace, window, cx);
 2007                                }
 2008
 2009                                workspace
 2010                            });
 2011                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 2012                        }
 2013                    })?;
 2014                    let workspace =
 2015                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 2016                            multi_workspace.workspace().clone()
 2017                        })?;
 2018                    (window, workspace)
 2019                };
 2020
 2021            notify_if_database_failed(window, cx);
 2022            // Check if this is an empty workspace (no paths to open)
 2023            // An empty workspace is one where project_paths is empty
 2024            let is_empty_workspace = project_paths.is_empty();
 2025            // Check if serialized workspace has paths before it's moved
 2026            let serialized_workspace_has_paths = serialized_workspace
 2027                .as_ref()
 2028                .map(|ws| !ws.paths.is_empty())
 2029                .unwrap_or(false);
 2030
 2031            let opened_items = window
 2032                .update(cx, |_, window, cx| {
 2033                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 2034                        open_items(serialized_workspace, project_paths, window, cx)
 2035                    })
 2036                })?
 2037                .await
 2038                .unwrap_or_default();
 2039
 2040            // Restore default dock state for empty workspaces
 2041            // Only restore if:
 2042            // 1. This is an empty workspace (no paths), AND
 2043            // 2. The serialized workspace either doesn't exist or has no paths
 2044            if is_empty_workspace && !serialized_workspace_has_paths {
 2045                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 2046                    window
 2047                        .update(cx, |_, window, cx| {
 2048                            workspace.update(cx, |workspace, cx| {
 2049                                for (dock, serialized_dock) in [
 2050                                    (&workspace.right_dock, &default_docks.right),
 2051                                    (&workspace.left_dock, &default_docks.left),
 2052                                    (&workspace.bottom_dock, &default_docks.bottom),
 2053                                ] {
 2054                                    dock.update(cx, |dock, cx| {
 2055                                        dock.serialized_dock = Some(serialized_dock.clone());
 2056                                        dock.restore_state(window, cx);
 2057                                    });
 2058                                }
 2059                                cx.notify();
 2060                            });
 2061                        })
 2062                        .log_err();
 2063                }
 2064            }
 2065
 2066            window
 2067                .update(cx, |_, _window, cx| {
 2068                    workspace.update(cx, |this: &mut Workspace, cx| {
 2069                        this.update_history(cx);
 2070                    });
 2071                })
 2072                .log_err();
 2073            Ok(OpenResult {
 2074                window,
 2075                workspace,
 2076                opened_items,
 2077            })
 2078        })
 2079    }
 2080
 2081    pub fn project_group_key(&self, cx: &App) -> ProjectGroupKey {
 2082        self.project.read(cx).project_group_key(cx)
 2083    }
 2084
 2085    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2086        self.weak_self.clone()
 2087    }
 2088
 2089    pub fn left_dock(&self) -> &Entity<Dock> {
 2090        &self.left_dock
 2091    }
 2092
 2093    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2094        &self.bottom_dock
 2095    }
 2096
 2097    pub fn set_bottom_dock_layout(
 2098        &mut self,
 2099        layout: BottomDockLayout,
 2100        window: &mut Window,
 2101        cx: &mut Context<Self>,
 2102    ) {
 2103        let fs = self.project().read(cx).fs();
 2104        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2105            content.workspace.bottom_dock_layout = Some(layout);
 2106        });
 2107
 2108        cx.notify();
 2109        self.serialize_workspace(window, cx);
 2110    }
 2111
 2112    pub fn right_dock(&self) -> &Entity<Dock> {
 2113        &self.right_dock
 2114    }
 2115
 2116    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2117        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2118    }
 2119
 2120    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2121        let left_dock = self.left_dock.read(cx);
 2122        let left_visible = left_dock.is_open();
 2123        let left_active_panel = left_dock
 2124            .active_panel()
 2125            .map(|panel| panel.persistent_name().to_string());
 2126        // `zoomed_position` is kept in sync with individual panel zoom state
 2127        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2128        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2129
 2130        let right_dock = self.right_dock.read(cx);
 2131        let right_visible = right_dock.is_open();
 2132        let right_active_panel = right_dock
 2133            .active_panel()
 2134            .map(|panel| panel.persistent_name().to_string());
 2135        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2136
 2137        let bottom_dock = self.bottom_dock.read(cx);
 2138        let bottom_visible = bottom_dock.is_open();
 2139        let bottom_active_panel = bottom_dock
 2140            .active_panel()
 2141            .map(|panel| panel.persistent_name().to_string());
 2142        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2143
 2144        DockStructure {
 2145            left: DockData {
 2146                visible: left_visible,
 2147                active_panel: left_active_panel,
 2148                zoom: left_dock_zoom,
 2149            },
 2150            right: DockData {
 2151                visible: right_visible,
 2152                active_panel: right_active_panel,
 2153                zoom: right_dock_zoom,
 2154            },
 2155            bottom: DockData {
 2156                visible: bottom_visible,
 2157                active_panel: bottom_active_panel,
 2158                zoom: bottom_dock_zoom,
 2159            },
 2160        }
 2161    }
 2162
 2163    pub fn set_dock_structure(
 2164        &self,
 2165        docks: DockStructure,
 2166        window: &mut Window,
 2167        cx: &mut Context<Self>,
 2168    ) {
 2169        for (dock, data) in [
 2170            (&self.left_dock, docks.left),
 2171            (&self.bottom_dock, docks.bottom),
 2172            (&self.right_dock, docks.right),
 2173        ] {
 2174            dock.update(cx, |dock, cx| {
 2175                dock.serialized_dock = Some(data);
 2176                dock.restore_state(window, cx);
 2177            });
 2178        }
 2179    }
 2180
 2181    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2182        self.items(cx)
 2183            .filter_map(|item| {
 2184                let project_path = item.project_path(cx)?;
 2185                self.project.read(cx).absolute_path(&project_path, cx)
 2186            })
 2187            .collect()
 2188    }
 2189
 2190    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2191        match position {
 2192            DockPosition::Left => &self.left_dock,
 2193            DockPosition::Bottom => &self.bottom_dock,
 2194            DockPosition::Right => &self.right_dock,
 2195        }
 2196    }
 2197
 2198    pub fn agent_panel_position(&self, cx: &App) -> Option<DockPosition> {
 2199        self.all_docks().into_iter().find_map(|dock| {
 2200            let dock = dock.read(cx);
 2201            dock.has_agent_panel(cx).then_some(dock.position())
 2202        })
 2203    }
 2204
 2205    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2206        self.all_docks().into_iter().find_map(|dock| {
 2207            let dock = dock.read(cx);
 2208            let panel = dock.panel::<T>()?;
 2209            dock.stored_panel_size_state(&panel)
 2210        })
 2211    }
 2212
 2213    pub fn persisted_panel_size_state(
 2214        &self,
 2215        panel_key: &'static str,
 2216        cx: &App,
 2217    ) -> Option<dock::PanelSizeState> {
 2218        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2219    }
 2220
 2221    pub fn persist_panel_size_state(
 2222        &self,
 2223        panel_key: &str,
 2224        size_state: dock::PanelSizeState,
 2225        cx: &mut App,
 2226    ) {
 2227        let Some(workspace_id) = self
 2228            .database_id()
 2229            .map(|id| i64::from(id).to_string())
 2230            .or(self.session_id())
 2231        else {
 2232            return;
 2233        };
 2234
 2235        let kvp = db::kvp::KeyValueStore::global(cx);
 2236        let panel_key = panel_key.to_string();
 2237        cx.background_spawn(async move {
 2238            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2239            scope
 2240                .write(
 2241                    format!("{workspace_id}:{panel_key}"),
 2242                    serde_json::to_string(&size_state)?,
 2243                )
 2244                .await
 2245        })
 2246        .detach_and_log_err(cx);
 2247    }
 2248
 2249    pub fn set_panel_size_state<T: Panel>(
 2250        &mut self,
 2251        size_state: dock::PanelSizeState,
 2252        window: &mut Window,
 2253        cx: &mut Context<Self>,
 2254    ) -> bool {
 2255        let Some(panel) = self.panel::<T>(cx) else {
 2256            return false;
 2257        };
 2258
 2259        let dock = self.dock_at_position(panel.position(window, cx));
 2260        let did_set = dock.update(cx, |dock, cx| {
 2261            dock.set_panel_size_state(&panel, size_state, cx)
 2262        });
 2263
 2264        if did_set {
 2265            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2266        }
 2267
 2268        did_set
 2269    }
 2270
 2271    pub fn toggle_dock_panel_flexible_size(
 2272        &self,
 2273        dock: &Entity<Dock>,
 2274        panel: &dyn PanelHandle,
 2275        window: &mut Window,
 2276        cx: &mut App,
 2277    ) {
 2278        let position = dock.read(cx).position();
 2279        let current_size = self.dock_size(&dock.read(cx), window, cx);
 2280        let current_flex =
 2281            current_size.and_then(|size| self.dock_flex_for_size(position, size, window, cx));
 2282        dock.update(cx, |dock, cx| {
 2283            dock.toggle_panel_flexible_size(panel, current_size, current_flex, window, cx);
 2284        });
 2285    }
 2286
 2287    fn dock_size(&self, dock: &Dock, window: &Window, cx: &App) -> Option<Pixels> {
 2288        let panel = dock.active_panel()?;
 2289        let size_state = dock
 2290            .stored_panel_size_state(panel.as_ref())
 2291            .unwrap_or_default();
 2292        let position = dock.position();
 2293
 2294        let use_flex = panel.has_flexible_size(window, cx);
 2295
 2296        if position.axis() == Axis::Horizontal
 2297            && use_flex
 2298            && let Some(flex) = size_state.flex.or_else(|| self.default_dock_flex(position))
 2299        {
 2300            let workspace_width = self.bounds.size.width;
 2301            if workspace_width <= Pixels::ZERO {
 2302                return None;
 2303            }
 2304            let flex = flex.max(0.001);
 2305            let center_column_count = self.center_full_height_column_count();
 2306            let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2307            if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2308                let total_flex = flex + center_column_count + opposite_flex;
 2309                return Some((flex / total_flex * workspace_width).max(RESIZE_HANDLE_SIZE));
 2310            } else {
 2311                let opposite_fixed = opposite
 2312                    .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2313                    .unwrap_or_default();
 2314                let available = (workspace_width - opposite_fixed).max(RESIZE_HANDLE_SIZE);
 2315                return Some(
 2316                    (flex / (flex + center_column_count) * available).max(RESIZE_HANDLE_SIZE),
 2317                );
 2318            }
 2319        }
 2320
 2321        Some(
 2322            size_state
 2323                .size
 2324                .unwrap_or_else(|| panel.default_size(window, cx)),
 2325        )
 2326    }
 2327
 2328    pub fn dock_flex_for_size(
 2329        &self,
 2330        position: DockPosition,
 2331        size: Pixels,
 2332        window: &Window,
 2333        cx: &App,
 2334    ) -> Option<f32> {
 2335        if position.axis() != Axis::Horizontal {
 2336            return None;
 2337        }
 2338
 2339        let workspace_width = self.bounds.size.width;
 2340        if workspace_width <= Pixels::ZERO {
 2341            return None;
 2342        }
 2343
 2344        let center_column_count = self.center_full_height_column_count();
 2345        let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2346        if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2347            let size = size.clamp(px(0.), workspace_width - px(1.));
 2348            Some((size * (center_column_count + opposite_flex) / (workspace_width - size)).max(0.0))
 2349        } else {
 2350            let opposite_width = opposite
 2351                .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2352                .unwrap_or_default();
 2353            let available = (workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE);
 2354            let remaining = (available - size).max(px(1.));
 2355            Some((size * center_column_count / remaining).max(0.0))
 2356        }
 2357    }
 2358
 2359    fn opposite_dock_panel_and_size_state(
 2360        &self,
 2361        position: DockPosition,
 2362        window: &Window,
 2363        cx: &App,
 2364    ) -> Option<(Arc<dyn PanelHandle>, PanelSizeState)> {
 2365        let opposite_position = match position {
 2366            DockPosition::Left => DockPosition::Right,
 2367            DockPosition::Right => DockPosition::Left,
 2368            DockPosition::Bottom => return None,
 2369        };
 2370
 2371        let opposite_dock = self.dock_at_position(opposite_position).read(cx);
 2372        let panel = opposite_dock.visible_panel()?;
 2373        let mut size_state = opposite_dock
 2374            .stored_panel_size_state(panel.as_ref())
 2375            .unwrap_or_default();
 2376        if size_state.flex.is_none() && panel.has_flexible_size(window, cx) {
 2377            size_state.flex = self.default_dock_flex(opposite_position);
 2378        }
 2379        Some((panel.clone(), size_state))
 2380    }
 2381
 2382    fn center_full_height_column_count(&self) -> f32 {
 2383        self.center.full_height_column_count().max(1) as f32
 2384    }
 2385
 2386    pub fn default_dock_flex(&self, position: DockPosition) -> Option<f32> {
 2387        if position.axis() != Axis::Horizontal {
 2388            return None;
 2389        }
 2390
 2391        Some(1.0)
 2392    }
 2393
 2394    pub fn is_edited(&self) -> bool {
 2395        self.window_edited
 2396    }
 2397
 2398    pub fn add_panel<T: Panel>(
 2399        &mut self,
 2400        panel: Entity<T>,
 2401        window: &mut Window,
 2402        cx: &mut Context<Self>,
 2403    ) {
 2404        let focus_handle = panel.panel_focus_handle(cx);
 2405        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2406            .detach();
 2407
 2408        let dock_position = panel.position(window, cx);
 2409        let dock = self.dock_at_position(dock_position);
 2410        let any_panel = panel.to_any();
 2411        let persisted_size_state =
 2412            self.persisted_panel_size_state(T::panel_key(), cx)
 2413                .or_else(|| {
 2414                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2415                        let state = dock::PanelSizeState {
 2416                            size: Some(size),
 2417                            flex: None,
 2418                        };
 2419                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2420                        state
 2421                    })
 2422                });
 2423
 2424        dock.update(cx, |dock, cx| {
 2425            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2426            if let Some(size_state) = persisted_size_state {
 2427                dock.set_panel_size_state(&panel, size_state, cx);
 2428            }
 2429            index
 2430        });
 2431
 2432        cx.emit(Event::PanelAdded(any_panel));
 2433    }
 2434
 2435    pub fn remove_panel<T: Panel>(
 2436        &mut self,
 2437        panel: &Entity<T>,
 2438        window: &mut Window,
 2439        cx: &mut Context<Self>,
 2440    ) {
 2441        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2442            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2443        }
 2444    }
 2445
 2446    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2447        &self.status_bar
 2448    }
 2449
 2450    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2451        self.sidebar_focus_handle = handle;
 2452    }
 2453
 2454    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2455        StatusBarSettings::get_global(cx).show
 2456    }
 2457
 2458    pub fn multi_workspace(&self) -> Option<&WeakEntity<MultiWorkspace>> {
 2459        self.multi_workspace.as_ref()
 2460    }
 2461
 2462    pub fn set_multi_workspace(
 2463        &mut self,
 2464        multi_workspace: WeakEntity<MultiWorkspace>,
 2465        cx: &mut App,
 2466    ) {
 2467        self.status_bar.update(cx, |status_bar, cx| {
 2468            status_bar.set_multi_workspace(multi_workspace.clone(), cx);
 2469        });
 2470        self.multi_workspace = Some(multi_workspace);
 2471    }
 2472
 2473    pub fn app_state(&self) -> &Arc<AppState> {
 2474        &self.app_state
 2475    }
 2476
 2477    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2478        self._panels_task = Some(task);
 2479    }
 2480
 2481    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2482        self._panels_task.take()
 2483    }
 2484
 2485    pub fn user_store(&self) -> &Entity<UserStore> {
 2486        &self.app_state.user_store
 2487    }
 2488
 2489    pub fn project(&self) -> &Entity<Project> {
 2490        &self.project
 2491    }
 2492
 2493    pub fn path_style(&self, cx: &App) -> PathStyle {
 2494        self.project.read(cx).path_style(cx)
 2495    }
 2496
 2497    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2498        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2499
 2500        for pane_handle in &self.panes {
 2501            let pane = pane_handle.read(cx);
 2502
 2503            for entry in pane.activation_history() {
 2504                history.insert(
 2505                    entry.entity_id,
 2506                    history
 2507                        .get(&entry.entity_id)
 2508                        .cloned()
 2509                        .unwrap_or(0)
 2510                        .max(entry.timestamp),
 2511                );
 2512            }
 2513        }
 2514
 2515        history
 2516    }
 2517
 2518    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2519        let mut recent_item: Option<Entity<T>> = None;
 2520        let mut recent_timestamp = 0;
 2521        for pane_handle in &self.panes {
 2522            let pane = pane_handle.read(cx);
 2523            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2524                pane.items().map(|item| (item.item_id(), item)).collect();
 2525            for entry in pane.activation_history() {
 2526                if entry.timestamp > recent_timestamp
 2527                    && let Some(&item) = item_map.get(&entry.entity_id)
 2528                    && let Some(typed_item) = item.act_as::<T>(cx)
 2529                {
 2530                    recent_timestamp = entry.timestamp;
 2531                    recent_item = Some(typed_item);
 2532                }
 2533            }
 2534        }
 2535        recent_item
 2536    }
 2537
 2538    pub fn recent_navigation_history_iter(
 2539        &self,
 2540        cx: &App,
 2541    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2542        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2543        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2544
 2545        for pane in &self.panes {
 2546            let pane = pane.read(cx);
 2547
 2548            pane.nav_history()
 2549                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2550                    if let Some(fs_path) = &fs_path {
 2551                        abs_paths_opened
 2552                            .entry(fs_path.clone())
 2553                            .or_default()
 2554                            .insert(project_path.clone());
 2555                    }
 2556                    let timestamp = entry.timestamp;
 2557                    match history.entry(project_path) {
 2558                        hash_map::Entry::Occupied(mut entry) => {
 2559                            let (_, old_timestamp) = entry.get();
 2560                            if &timestamp > old_timestamp {
 2561                                entry.insert((fs_path, timestamp));
 2562                            }
 2563                        }
 2564                        hash_map::Entry::Vacant(entry) => {
 2565                            entry.insert((fs_path, timestamp));
 2566                        }
 2567                    }
 2568                });
 2569
 2570            if let Some(item) = pane.active_item()
 2571                && let Some(project_path) = item.project_path(cx)
 2572            {
 2573                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2574
 2575                if let Some(fs_path) = &fs_path {
 2576                    abs_paths_opened
 2577                        .entry(fs_path.clone())
 2578                        .or_default()
 2579                        .insert(project_path.clone());
 2580                }
 2581
 2582                history.insert(project_path, (fs_path, std::usize::MAX));
 2583            }
 2584        }
 2585
 2586        history
 2587            .into_iter()
 2588            .sorted_by_key(|(_, (_, order))| *order)
 2589            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2590            .rev()
 2591            .filter(move |(history_path, abs_path)| {
 2592                let latest_project_path_opened = abs_path
 2593                    .as_ref()
 2594                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2595                    .and_then(|project_paths| {
 2596                        project_paths
 2597                            .iter()
 2598                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2599                    });
 2600
 2601                latest_project_path_opened.is_none_or(|path| path == history_path)
 2602            })
 2603    }
 2604
 2605    pub fn recent_navigation_history(
 2606        &self,
 2607        limit: Option<usize>,
 2608        cx: &App,
 2609    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2610        self.recent_navigation_history_iter(cx)
 2611            .take(limit.unwrap_or(usize::MAX))
 2612            .collect()
 2613    }
 2614
 2615    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2616        for pane in &self.panes {
 2617            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2618        }
 2619    }
 2620
 2621    fn navigate_history(
 2622        &mut self,
 2623        pane: WeakEntity<Pane>,
 2624        mode: NavigationMode,
 2625        window: &mut Window,
 2626        cx: &mut Context<Workspace>,
 2627    ) -> Task<Result<()>> {
 2628        self.navigate_history_impl(
 2629            pane,
 2630            mode,
 2631            window,
 2632            &mut |history, cx| history.pop(mode, cx),
 2633            cx,
 2634        )
 2635    }
 2636
 2637    fn navigate_tag_history(
 2638        &mut self,
 2639        pane: WeakEntity<Pane>,
 2640        mode: TagNavigationMode,
 2641        window: &mut Window,
 2642        cx: &mut Context<Workspace>,
 2643    ) -> Task<Result<()>> {
 2644        self.navigate_history_impl(
 2645            pane,
 2646            NavigationMode::Normal,
 2647            window,
 2648            &mut |history, _cx| history.pop_tag(mode),
 2649            cx,
 2650        )
 2651    }
 2652
 2653    fn navigate_history_impl(
 2654        &mut self,
 2655        pane: WeakEntity<Pane>,
 2656        mode: NavigationMode,
 2657        window: &mut Window,
 2658        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2659        cx: &mut Context<Workspace>,
 2660    ) -> Task<Result<()>> {
 2661        let to_load = if let Some(pane) = pane.upgrade() {
 2662            pane.update(cx, |pane, cx| {
 2663                window.focus(&pane.focus_handle(cx), cx);
 2664                loop {
 2665                    // Retrieve the weak item handle from the history.
 2666                    let entry = cb(pane.nav_history_mut(), cx)?;
 2667
 2668                    // If the item is still present in this pane, then activate it.
 2669                    if let Some(index) = entry
 2670                        .item
 2671                        .upgrade()
 2672                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2673                    {
 2674                        let prev_active_item_index = pane.active_item_index();
 2675                        pane.nav_history_mut().set_mode(mode);
 2676                        pane.activate_item(index, true, true, window, cx);
 2677                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2678
 2679                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2680                        if let Some(data) = entry.data {
 2681                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2682                        }
 2683
 2684                        if navigated {
 2685                            break None;
 2686                        }
 2687                    } else {
 2688                        // If the item is no longer present in this pane, then retrieve its
 2689                        // path info in order to reopen it.
 2690                        break pane
 2691                            .nav_history()
 2692                            .path_for_item(entry.item.id())
 2693                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2694                    }
 2695                }
 2696            })
 2697        } else {
 2698            None
 2699        };
 2700
 2701        if let Some((project_path, abs_path, entry)) = to_load {
 2702            // If the item was no longer present, then load it again from its previous path, first try the local path
 2703            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2704
 2705            cx.spawn_in(window, async move  |workspace, cx| {
 2706                let open_by_project_path = open_by_project_path.await;
 2707                let mut navigated = false;
 2708                match open_by_project_path
 2709                    .with_context(|| format!("Navigating to {project_path:?}"))
 2710                {
 2711                    Ok((project_entry_id, build_item)) => {
 2712                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2713                            pane.nav_history_mut().set_mode(mode);
 2714                            pane.active_item().map(|p| p.item_id())
 2715                        })?;
 2716
 2717                        pane.update_in(cx, |pane, window, cx| {
 2718                            let item = pane.open_item(
 2719                                project_entry_id,
 2720                                project_path,
 2721                                true,
 2722                                entry.is_preview,
 2723                                true,
 2724                                None,
 2725                                window, cx,
 2726                                build_item,
 2727                            );
 2728                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2729                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2730                            if let Some(data) = entry.data {
 2731                                navigated |= item.navigate(data, window, cx);
 2732                            }
 2733                        })?;
 2734                    }
 2735                    Err(open_by_project_path_e) => {
 2736                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2737                        // and its worktree is now dropped
 2738                        if let Some(abs_path) = abs_path {
 2739                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2740                                pane.nav_history_mut().set_mode(mode);
 2741                                pane.active_item().map(|p| p.item_id())
 2742                            })?;
 2743                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2744                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2745                            })?;
 2746                            match open_by_abs_path
 2747                                .await
 2748                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2749                            {
 2750                                Ok(item) => {
 2751                                    pane.update_in(cx, |pane, window, cx| {
 2752                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2753                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2754                                        if let Some(data) = entry.data {
 2755                                            navigated |= item.navigate(data, window, cx);
 2756                                        }
 2757                                    })?;
 2758                                }
 2759                                Err(open_by_abs_path_e) => {
 2760                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2761                                }
 2762                            }
 2763                        }
 2764                    }
 2765                }
 2766
 2767                if !navigated {
 2768                    workspace
 2769                        .update_in(cx, |workspace, window, cx| {
 2770                            Self::navigate_history(workspace, pane, mode, window, cx)
 2771                        })?
 2772                        .await?;
 2773                }
 2774
 2775                Ok(())
 2776            })
 2777        } else {
 2778            Task::ready(Ok(()))
 2779        }
 2780    }
 2781
 2782    pub fn go_back(
 2783        &mut self,
 2784        pane: WeakEntity<Pane>,
 2785        window: &mut Window,
 2786        cx: &mut Context<Workspace>,
 2787    ) -> Task<Result<()>> {
 2788        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2789    }
 2790
 2791    pub fn go_forward(
 2792        &mut self,
 2793        pane: WeakEntity<Pane>,
 2794        window: &mut Window,
 2795        cx: &mut Context<Workspace>,
 2796    ) -> Task<Result<()>> {
 2797        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2798    }
 2799
 2800    pub fn reopen_closed_item(
 2801        &mut self,
 2802        window: &mut Window,
 2803        cx: &mut Context<Workspace>,
 2804    ) -> Task<Result<()>> {
 2805        self.navigate_history(
 2806            self.active_pane().downgrade(),
 2807            NavigationMode::ReopeningClosedItem,
 2808            window,
 2809            cx,
 2810        )
 2811    }
 2812
 2813    pub fn client(&self) -> &Arc<Client> {
 2814        &self.app_state.client
 2815    }
 2816
 2817    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2818        self.titlebar_item = Some(item);
 2819        cx.notify();
 2820    }
 2821
 2822    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2823        self.on_prompt_for_new_path = Some(prompt)
 2824    }
 2825
 2826    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2827        self.on_prompt_for_open_path = Some(prompt)
 2828    }
 2829
 2830    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2831        self.terminal_provider = Some(Box::new(provider));
 2832    }
 2833
 2834    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2835        self.debugger_provider = Some(Arc::new(provider));
 2836    }
 2837
 2838    pub fn set_open_in_dev_container(&mut self, value: bool) {
 2839        self.open_in_dev_container = value;
 2840    }
 2841
 2842    pub fn open_in_dev_container(&self) -> bool {
 2843        self.open_in_dev_container
 2844    }
 2845
 2846    pub fn set_dev_container_task(&mut self, task: Task<Result<()>>) {
 2847        self._dev_container_task = Some(task);
 2848    }
 2849
 2850    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2851        self.debugger_provider.clone()
 2852    }
 2853
 2854    pub fn prompt_for_open_path(
 2855        &mut self,
 2856        path_prompt_options: PathPromptOptions,
 2857        lister: DirectoryLister,
 2858        window: &mut Window,
 2859        cx: &mut Context<Self>,
 2860    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2861        // TODO: If `on_prompt_for_open_path` is set, we should always use it
 2862        // rather than gating on `use_system_path_prompts`. This would let tests
 2863        // inject a mock without also having to disable the setting.
 2864        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2865            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2866            let rx = prompt(self, lister, window, cx);
 2867            self.on_prompt_for_open_path = Some(prompt);
 2868            rx
 2869        } else {
 2870            let (tx, rx) = oneshot::channel();
 2871            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2872
 2873            cx.spawn_in(window, async move |workspace, cx| {
 2874                let Ok(result) = abs_path.await else {
 2875                    return Ok(());
 2876                };
 2877
 2878                match result {
 2879                    Ok(result) => {
 2880                        tx.send(result).ok();
 2881                    }
 2882                    Err(err) => {
 2883                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2884                            workspace.show_portal_error(err.to_string(), cx);
 2885                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2886                            let rx = prompt(workspace, lister, window, cx);
 2887                            workspace.on_prompt_for_open_path = Some(prompt);
 2888                            rx
 2889                        })?;
 2890                        if let Ok(path) = rx.await {
 2891                            tx.send(path).ok();
 2892                        }
 2893                    }
 2894                };
 2895                anyhow::Ok(())
 2896            })
 2897            .detach();
 2898
 2899            rx
 2900        }
 2901    }
 2902
 2903    pub fn prompt_for_new_path(
 2904        &mut self,
 2905        lister: DirectoryLister,
 2906        suggested_name: Option<String>,
 2907        window: &mut Window,
 2908        cx: &mut Context<Self>,
 2909    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2910        if self.project.read(cx).is_via_collab()
 2911            || self.project.read(cx).is_via_remote_server()
 2912            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2913        {
 2914            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2915            let rx = prompt(self, lister, suggested_name, window, cx);
 2916            self.on_prompt_for_new_path = Some(prompt);
 2917            return rx;
 2918        }
 2919
 2920        let (tx, rx) = oneshot::channel();
 2921        cx.spawn_in(window, async move |workspace, cx| {
 2922            let abs_path = workspace.update(cx, |workspace, cx| {
 2923                let relative_to = workspace
 2924                    .most_recent_active_path(cx)
 2925                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2926                    .or_else(|| {
 2927                        let project = workspace.project.read(cx);
 2928                        project.visible_worktrees(cx).find_map(|worktree| {
 2929                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2930                        })
 2931                    })
 2932                    .or_else(std::env::home_dir)
 2933                    .unwrap_or_else(|| PathBuf::from(""));
 2934                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2935            })?;
 2936            let abs_path = match abs_path.await? {
 2937                Ok(path) => path,
 2938                Err(err) => {
 2939                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2940                        workspace.show_portal_error(err.to_string(), cx);
 2941
 2942                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2943                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2944                        workspace.on_prompt_for_new_path = Some(prompt);
 2945                        rx
 2946                    })?;
 2947                    if let Ok(path) = rx.await {
 2948                        tx.send(path).ok();
 2949                    }
 2950                    return anyhow::Ok(());
 2951                }
 2952            };
 2953
 2954            tx.send(abs_path.map(|path| vec![path])).ok();
 2955            anyhow::Ok(())
 2956        })
 2957        .detach();
 2958
 2959        rx
 2960    }
 2961
 2962    pub fn titlebar_item(&self) -> Option<AnyView> {
 2963        self.titlebar_item.clone()
 2964    }
 2965
 2966    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2967    ///
 2968    /// If the given workspace has a local project, then it will be passed
 2969    /// to the callback. Otherwise, a new empty window will be created.
 2970    pub fn with_local_workspace<T, F>(
 2971        &mut self,
 2972        window: &mut Window,
 2973        cx: &mut Context<Self>,
 2974        callback: F,
 2975    ) -> Task<Result<T>>
 2976    where
 2977        T: 'static,
 2978        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2979    {
 2980        if self.project.read(cx).is_local() {
 2981            Task::ready(Ok(callback(self, window, cx)))
 2982        } else {
 2983            let env = self.project.read(cx).cli_environment(cx);
 2984            let task = Self::new_local(
 2985                Vec::new(),
 2986                self.app_state.clone(),
 2987                None,
 2988                env,
 2989                None,
 2990                OpenMode::Activate,
 2991                cx,
 2992            );
 2993            cx.spawn_in(window, async move |_vh, cx| {
 2994                let OpenResult {
 2995                    window: multi_workspace_window,
 2996                    ..
 2997                } = task.await?;
 2998                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2999                    let workspace = multi_workspace.workspace().clone();
 3000                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3001                })
 3002            })
 3003        }
 3004    }
 3005
 3006    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 3007    ///
 3008    /// If the given workspace has a local project, then it will be passed
 3009    /// to the callback. Otherwise, a new empty window will be created.
 3010    pub fn with_local_or_wsl_workspace<T, F>(
 3011        &mut self,
 3012        window: &mut Window,
 3013        cx: &mut Context<Self>,
 3014        callback: F,
 3015    ) -> Task<Result<T>>
 3016    where
 3017        T: 'static,
 3018        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 3019    {
 3020        let project = self.project.read(cx);
 3021        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 3022            Task::ready(Ok(callback(self, window, cx)))
 3023        } else {
 3024            let env = self.project.read(cx).cli_environment(cx);
 3025            let task = Self::new_local(
 3026                Vec::new(),
 3027                self.app_state.clone(),
 3028                None,
 3029                env,
 3030                None,
 3031                OpenMode::Activate,
 3032                cx,
 3033            );
 3034            cx.spawn_in(window, async move |_vh, cx| {
 3035                let OpenResult {
 3036                    window: multi_workspace_window,
 3037                    ..
 3038                } = task.await?;
 3039                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3040                    let workspace = multi_workspace.workspace().clone();
 3041                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3042                })
 3043            })
 3044        }
 3045    }
 3046
 3047    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3048        self.project.read(cx).worktrees(cx)
 3049    }
 3050
 3051    pub fn visible_worktrees<'a>(
 3052        &self,
 3053        cx: &'a App,
 3054    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3055        self.project.read(cx).visible_worktrees(cx)
 3056    }
 3057
 3058    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 3059        let futures = self
 3060            .worktrees(cx)
 3061            .filter_map(|worktree| worktree.read(cx).as_local())
 3062            .map(|worktree| worktree.scan_complete())
 3063            .collect::<Vec<_>>();
 3064        async move {
 3065            for future in futures {
 3066                future.await;
 3067            }
 3068        }
 3069    }
 3070
 3071    pub fn close_global(cx: &mut App) {
 3072        cx.defer(|cx| {
 3073            cx.windows().iter().find(|window| {
 3074                window
 3075                    .update(cx, |_, window, _| {
 3076                        if window.is_window_active() {
 3077                            //This can only get called when the window's project connection has been lost
 3078                            //so we don't need to prompt the user for anything and instead just close the window
 3079                            window.remove_window();
 3080                            true
 3081                        } else {
 3082                            false
 3083                        }
 3084                    })
 3085                    .unwrap_or(false)
 3086            });
 3087        });
 3088    }
 3089
 3090    pub fn move_focused_panel_to_next_position(
 3091        &mut self,
 3092        _: &MoveFocusedPanelToNextPosition,
 3093        window: &mut Window,
 3094        cx: &mut Context<Self>,
 3095    ) {
 3096        let docks = self.all_docks();
 3097        let active_dock = docks
 3098            .into_iter()
 3099            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3100
 3101        if let Some(dock) = active_dock {
 3102            dock.update(cx, |dock, cx| {
 3103                let active_panel = dock
 3104                    .active_panel()
 3105                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 3106
 3107                if let Some(panel) = active_panel {
 3108                    panel.move_to_next_position(window, cx);
 3109                }
 3110            })
 3111        }
 3112    }
 3113
 3114    pub fn prepare_to_close(
 3115        &mut self,
 3116        close_intent: CloseIntent,
 3117        window: &mut Window,
 3118        cx: &mut Context<Self>,
 3119    ) -> Task<Result<bool>> {
 3120        let active_call = self.active_global_call();
 3121
 3122        cx.spawn_in(window, async move |this, cx| {
 3123            this.update(cx, |this, _| {
 3124                if close_intent == CloseIntent::CloseWindow {
 3125                    this.removing = true;
 3126                }
 3127            })?;
 3128
 3129            let workspace_count = cx.update(|_window, cx| {
 3130                cx.windows()
 3131                    .iter()
 3132                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3133                    .count()
 3134            })?;
 3135
 3136            #[cfg(target_os = "macos")]
 3137            let save_last_workspace = false;
 3138
 3139            // On Linux and Windows, closing the last window should restore the last workspace.
 3140            #[cfg(not(target_os = "macos"))]
 3141            let save_last_workspace = {
 3142                let remaining_workspaces = cx.update(|_window, cx| {
 3143                    cx.windows()
 3144                        .iter()
 3145                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3146                        .filter_map(|multi_workspace| {
 3147                            multi_workspace
 3148                                .update(cx, |multi_workspace, _, cx| {
 3149                                    multi_workspace.workspace().read(cx).removing
 3150                                })
 3151                                .ok()
 3152                        })
 3153                        .filter(|removing| !removing)
 3154                        .count()
 3155                })?;
 3156
 3157                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3158            };
 3159
 3160            if let Some(active_call) = active_call
 3161                && workspace_count == 1
 3162                && cx
 3163                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3164                    .unwrap_or(false)
 3165            {
 3166                if close_intent == CloseIntent::CloseWindow {
 3167                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3168                    let answer = cx.update(|window, cx| {
 3169                        window.prompt(
 3170                            PromptLevel::Warning,
 3171                            "Do you want to leave the current call?",
 3172                            None,
 3173                            &["Close window and hang up", "Cancel"],
 3174                            cx,
 3175                        )
 3176                    })?;
 3177
 3178                    if answer.await.log_err() == Some(1) {
 3179                        return anyhow::Ok(false);
 3180                    } else {
 3181                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3182                            task.await.log_err();
 3183                        }
 3184                    }
 3185                }
 3186                if close_intent == CloseIntent::ReplaceWindow {
 3187                    _ = cx.update(|_window, cx| {
 3188                        let multi_workspace = cx
 3189                            .windows()
 3190                            .iter()
 3191                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3192                            .next()
 3193                            .unwrap();
 3194                        let project = multi_workspace
 3195                            .read(cx)?
 3196                            .workspace()
 3197                            .read(cx)
 3198                            .project
 3199                            .clone();
 3200                        if project.read(cx).is_shared() {
 3201                            active_call.0.unshare_project(project, cx)?;
 3202                        }
 3203                        Ok::<_, anyhow::Error>(())
 3204                    });
 3205                }
 3206            }
 3207
 3208            let save_result = this
 3209                .update_in(cx, |this, window, cx| {
 3210                    this.save_all_internal(SaveIntent::Close, window, cx)
 3211                })?
 3212                .await;
 3213
 3214            // If we're not quitting, but closing, we remove the workspace from
 3215            // the current session.
 3216            if close_intent != CloseIntent::Quit
 3217                && !save_last_workspace
 3218                && save_result.as_ref().is_ok_and(|&res| res)
 3219            {
 3220                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3221                    .await;
 3222            }
 3223
 3224            save_result
 3225        })
 3226    }
 3227
 3228    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3229        self.save_all_internal(
 3230            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3231            window,
 3232            cx,
 3233        )
 3234        .detach_and_log_err(cx);
 3235    }
 3236
 3237    fn send_keystrokes(
 3238        &mut self,
 3239        action: &SendKeystrokes,
 3240        window: &mut Window,
 3241        cx: &mut Context<Self>,
 3242    ) {
 3243        let keystrokes: Vec<Keystroke> = action
 3244            .0
 3245            .split(' ')
 3246            .flat_map(|k| Keystroke::parse(k).log_err())
 3247            .map(|k| {
 3248                cx.keyboard_mapper()
 3249                    .map_key_equivalent(k, false)
 3250                    .inner()
 3251                    .clone()
 3252            })
 3253            .collect();
 3254        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3255    }
 3256
 3257    pub fn send_keystrokes_impl(
 3258        &mut self,
 3259        keystrokes: Vec<Keystroke>,
 3260        window: &mut Window,
 3261        cx: &mut Context<Self>,
 3262    ) -> Shared<Task<()>> {
 3263        let mut state = self.dispatching_keystrokes.borrow_mut();
 3264        if !state.dispatched.insert(keystrokes.clone()) {
 3265            cx.propagate();
 3266            return state.task.clone().unwrap();
 3267        }
 3268
 3269        state.queue.extend(keystrokes);
 3270
 3271        let keystrokes = self.dispatching_keystrokes.clone();
 3272        if state.task.is_none() {
 3273            state.task = Some(
 3274                window
 3275                    .spawn(cx, async move |cx| {
 3276                        // limit to 100 keystrokes to avoid infinite recursion.
 3277                        for _ in 0..100 {
 3278                            let keystroke = {
 3279                                let mut state = keystrokes.borrow_mut();
 3280                                let Some(keystroke) = state.queue.pop_front() else {
 3281                                    state.dispatched.clear();
 3282                                    state.task.take();
 3283                                    return;
 3284                                };
 3285                                keystroke
 3286                            };
 3287                            cx.update(|window, cx| {
 3288                                let focused = window.focused(cx);
 3289                                window.dispatch_keystroke(keystroke.clone(), cx);
 3290                                if window.focused(cx) != focused {
 3291                                    // dispatch_keystroke may cause the focus to change.
 3292                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3293                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3294                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3295                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3296                                    // )
 3297                                    window.draw(cx).clear();
 3298                                }
 3299                            })
 3300                            .ok();
 3301
 3302                            // Yield between synthetic keystrokes so deferred focus and
 3303                            // other effects can settle before dispatching the next key.
 3304                            yield_now().await;
 3305                        }
 3306
 3307                        *keystrokes.borrow_mut() = Default::default();
 3308                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3309                    })
 3310                    .shared(),
 3311            );
 3312        }
 3313        state.task.clone().unwrap()
 3314    }
 3315
 3316    /// Prompts the user to save or discard each dirty item, returning
 3317    /// `true` if they confirmed (saved/discarded everything) or `false`
 3318    /// if they cancelled. Used before removing worktree roots during
 3319    /// thread archival.
 3320    pub fn prompt_to_save_or_discard_dirty_items(
 3321        &mut self,
 3322        window: &mut Window,
 3323        cx: &mut Context<Self>,
 3324    ) -> Task<Result<bool>> {
 3325        self.save_all_internal(SaveIntent::Close, window, cx)
 3326    }
 3327
 3328    fn save_all_internal(
 3329        &mut self,
 3330        mut save_intent: SaveIntent,
 3331        window: &mut Window,
 3332        cx: &mut Context<Self>,
 3333    ) -> Task<Result<bool>> {
 3334        if self.project.read(cx).is_disconnected(cx) {
 3335            return Task::ready(Ok(true));
 3336        }
 3337        let dirty_items = self
 3338            .panes
 3339            .iter()
 3340            .flat_map(|pane| {
 3341                pane.read(cx).items().filter_map(|item| {
 3342                    if item.is_dirty(cx) {
 3343                        item.tab_content_text(0, cx);
 3344                        Some((pane.downgrade(), item.boxed_clone()))
 3345                    } else {
 3346                        None
 3347                    }
 3348                })
 3349            })
 3350            .collect::<Vec<_>>();
 3351
 3352        let project = self.project.clone();
 3353        cx.spawn_in(window, async move |workspace, cx| {
 3354            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3355                let (serialize_tasks, remaining_dirty_items) =
 3356                    workspace.update_in(cx, |workspace, window, cx| {
 3357                        let mut remaining_dirty_items = Vec::new();
 3358                        let mut serialize_tasks = Vec::new();
 3359                        for (pane, item) in dirty_items {
 3360                            if let Some(task) = item
 3361                                .to_serializable_item_handle(cx)
 3362                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3363                            {
 3364                                serialize_tasks.push(task);
 3365                            } else {
 3366                                remaining_dirty_items.push((pane, item));
 3367                            }
 3368                        }
 3369                        (serialize_tasks, remaining_dirty_items)
 3370                    })?;
 3371
 3372                futures::future::try_join_all(serialize_tasks).await?;
 3373
 3374                if !remaining_dirty_items.is_empty() {
 3375                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3376                }
 3377
 3378                if remaining_dirty_items.len() > 1 {
 3379                    let answer = workspace.update_in(cx, |_, window, cx| {
 3380                        cx.emit(Event::Activate);
 3381                        let detail = Pane::file_names_for_prompt(
 3382                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3383                            cx,
 3384                        );
 3385                        window.prompt(
 3386                            PromptLevel::Warning,
 3387                            "Do you want to save all changes in the following files?",
 3388                            Some(&detail),
 3389                            &["Save all", "Discard all", "Cancel"],
 3390                            cx,
 3391                        )
 3392                    })?;
 3393                    match answer.await.log_err() {
 3394                        Some(0) => save_intent = SaveIntent::SaveAll,
 3395                        Some(1) => save_intent = SaveIntent::Skip,
 3396                        Some(2) => return Ok(false),
 3397                        _ => {}
 3398                    }
 3399                }
 3400
 3401                remaining_dirty_items
 3402            } else {
 3403                dirty_items
 3404            };
 3405
 3406            for (pane, item) in dirty_items {
 3407                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3408                    (
 3409                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3410                        item.project_entry_ids(cx),
 3411                    )
 3412                })?;
 3413                if (singleton || !project_entry_ids.is_empty())
 3414                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3415                {
 3416                    return Ok(false);
 3417                }
 3418            }
 3419            Ok(true)
 3420        })
 3421    }
 3422
 3423    pub fn open_workspace_for_paths(
 3424        &mut self,
 3425        // replace_current_window: bool,
 3426        mut open_mode: OpenMode,
 3427        paths: Vec<PathBuf>,
 3428        window: &mut Window,
 3429        cx: &mut Context<Self>,
 3430    ) -> Task<Result<Entity<Workspace>>> {
 3431        let requesting_window = window.window_handle().downcast::<MultiWorkspace>();
 3432        let is_remote = self.project.read(cx).is_via_collab();
 3433        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3434        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3435
 3436        let workspace_is_empty = !is_remote && !has_worktree && !has_dirty_items;
 3437        if workspace_is_empty {
 3438            open_mode = OpenMode::Activate;
 3439        }
 3440
 3441        let app_state = self.app_state.clone();
 3442
 3443        cx.spawn(async move |_, cx| {
 3444            let OpenResult { workspace, .. } = cx
 3445                .update(|cx| {
 3446                    open_paths(
 3447                        &paths,
 3448                        app_state,
 3449                        OpenOptions {
 3450                            requesting_window,
 3451                            open_mode,
 3452                            ..Default::default()
 3453                        },
 3454                        cx,
 3455                    )
 3456                })
 3457                .await?;
 3458            Ok(workspace)
 3459        })
 3460    }
 3461
 3462    #[allow(clippy::type_complexity)]
 3463    pub fn open_paths(
 3464        &mut self,
 3465        mut abs_paths: Vec<PathBuf>,
 3466        options: OpenOptions,
 3467        pane: Option<WeakEntity<Pane>>,
 3468        window: &mut Window,
 3469        cx: &mut Context<Self>,
 3470    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3471        let fs = self.app_state.fs.clone();
 3472
 3473        let caller_ordered_abs_paths = abs_paths.clone();
 3474
 3475        // Sort the paths to ensure we add worktrees for parents before their children.
 3476        abs_paths.sort_unstable();
 3477        cx.spawn_in(window, async move |this, cx| {
 3478            let mut tasks = Vec::with_capacity(abs_paths.len());
 3479
 3480            for abs_path in &abs_paths {
 3481                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3482                    OpenVisible::All => Some(true),
 3483                    OpenVisible::None => Some(false),
 3484                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3485                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3486                        Some(None) => Some(true),
 3487                        None => None,
 3488                    },
 3489                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3490                        Some(Some(metadata)) => Some(metadata.is_dir),
 3491                        Some(None) => Some(false),
 3492                        None => None,
 3493                    },
 3494                };
 3495                let project_path = match visible {
 3496                    Some(visible) => match this
 3497                        .update(cx, |this, cx| {
 3498                            Workspace::project_path_for_path(
 3499                                this.project.clone(),
 3500                                abs_path,
 3501                                visible,
 3502                                cx,
 3503                            )
 3504                        })
 3505                        .log_err()
 3506                    {
 3507                        Some(project_path) => project_path.await.log_err(),
 3508                        None => None,
 3509                    },
 3510                    None => None,
 3511                };
 3512
 3513                let this = this.clone();
 3514                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3515                let fs = fs.clone();
 3516                let pane = pane.clone();
 3517                let task = cx.spawn(async move |cx| {
 3518                    let (_worktree, project_path) = project_path?;
 3519                    if fs.is_dir(&abs_path).await {
 3520                        // Opening a directory should not race to update the active entry.
 3521                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3522                        None
 3523                    } else {
 3524                        Some(
 3525                            this.update_in(cx, |this, window, cx| {
 3526                                this.open_path(
 3527                                    project_path,
 3528                                    pane,
 3529                                    options.focus.unwrap_or(true),
 3530                                    window,
 3531                                    cx,
 3532                                )
 3533                            })
 3534                            .ok()?
 3535                            .await,
 3536                        )
 3537                    }
 3538                });
 3539                tasks.push(task);
 3540            }
 3541
 3542            let results = futures::future::join_all(tasks).await;
 3543
 3544            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3545            let mut winner: Option<(PathBuf, bool)> = None;
 3546            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3547                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3548                    if !metadata.is_dir {
 3549                        winner = Some((abs_path, false));
 3550                        break;
 3551                    }
 3552                    if winner.is_none() {
 3553                        winner = Some((abs_path, true));
 3554                    }
 3555                } else if winner.is_none() {
 3556                    winner = Some((abs_path, false));
 3557                }
 3558            }
 3559
 3560            // Compute the winner entry id on the foreground thread and emit once, after all
 3561            // paths finish opening. This avoids races between concurrently-opening paths
 3562            // (directories in particular) and makes the resulting project panel selection
 3563            // deterministic.
 3564            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3565                'emit_winner: {
 3566                    let winner_abs_path: Arc<Path> =
 3567                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3568
 3569                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3570                        OpenVisible::All => true,
 3571                        OpenVisible::None => false,
 3572                        OpenVisible::OnlyFiles => !winner_is_dir,
 3573                        OpenVisible::OnlyDirectories => winner_is_dir,
 3574                    };
 3575
 3576                    let Some(worktree_task) = this
 3577                        .update(cx, |workspace, cx| {
 3578                            workspace.project.update(cx, |project, cx| {
 3579                                project.find_or_create_worktree(
 3580                                    winner_abs_path.as_ref(),
 3581                                    visible,
 3582                                    cx,
 3583                                )
 3584                            })
 3585                        })
 3586                        .ok()
 3587                    else {
 3588                        break 'emit_winner;
 3589                    };
 3590
 3591                    let Ok((worktree, _)) = worktree_task.await else {
 3592                        break 'emit_winner;
 3593                    };
 3594
 3595                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3596                        let worktree = worktree.read(cx);
 3597                        let worktree_abs_path = worktree.abs_path();
 3598                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3599                            worktree.root_entry()
 3600                        } else {
 3601                            winner_abs_path
 3602                                .strip_prefix(worktree_abs_path.as_ref())
 3603                                .ok()
 3604                                .and_then(|relative_path| {
 3605                                    let relative_path =
 3606                                        RelPath::new(relative_path, PathStyle::local())
 3607                                            .log_err()?;
 3608                                    worktree.entry_for_path(&relative_path)
 3609                                })
 3610                        }?;
 3611                        Some(entry.id)
 3612                    }) else {
 3613                        break 'emit_winner;
 3614                    };
 3615
 3616                    this.update(cx, |workspace, cx| {
 3617                        workspace.project.update(cx, |_, cx| {
 3618                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3619                        });
 3620                    })
 3621                    .ok();
 3622                }
 3623            }
 3624
 3625            results
 3626        })
 3627    }
 3628
 3629    pub fn open_resolved_path(
 3630        &mut self,
 3631        path: ResolvedPath,
 3632        window: &mut Window,
 3633        cx: &mut Context<Self>,
 3634    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3635        match path {
 3636            ResolvedPath::ProjectPath { project_path, .. } => {
 3637                self.open_path(project_path, None, true, window, cx)
 3638            }
 3639            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3640                PathBuf::from(path),
 3641                OpenOptions {
 3642                    visible: Some(OpenVisible::None),
 3643                    ..Default::default()
 3644                },
 3645                window,
 3646                cx,
 3647            ),
 3648        }
 3649    }
 3650
 3651    pub fn absolute_path_of_worktree(
 3652        &self,
 3653        worktree_id: WorktreeId,
 3654        cx: &mut Context<Self>,
 3655    ) -> Option<PathBuf> {
 3656        self.project
 3657            .read(cx)
 3658            .worktree_for_id(worktree_id, cx)
 3659            // TODO: use `abs_path` or `root_dir`
 3660            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3661    }
 3662
 3663    pub fn add_folder_to_project(
 3664        &mut self,
 3665        _: &AddFolderToProject,
 3666        window: &mut Window,
 3667        cx: &mut Context<Self>,
 3668    ) {
 3669        let project = self.project.read(cx);
 3670        if project.is_via_collab() {
 3671            self.show_error(
 3672                &anyhow!("You cannot add folders to someone else's project"),
 3673                cx,
 3674            );
 3675            return;
 3676        }
 3677        let paths = self.prompt_for_open_path(
 3678            PathPromptOptions {
 3679                files: false,
 3680                directories: true,
 3681                multiple: true,
 3682                prompt: None,
 3683            },
 3684            DirectoryLister::Project(self.project.clone()),
 3685            window,
 3686            cx,
 3687        );
 3688        cx.spawn_in(window, async move |this, cx| {
 3689            if let Some(paths) = paths.await.log_err().flatten() {
 3690                let results = this
 3691                    .update_in(cx, |this, window, cx| {
 3692                        this.open_paths(
 3693                            paths,
 3694                            OpenOptions {
 3695                                visible: Some(OpenVisible::All),
 3696                                ..Default::default()
 3697                            },
 3698                            None,
 3699                            window,
 3700                            cx,
 3701                        )
 3702                    })?
 3703                    .await;
 3704                for result in results.into_iter().flatten() {
 3705                    result.log_err();
 3706                }
 3707            }
 3708            anyhow::Ok(())
 3709        })
 3710        .detach_and_log_err(cx);
 3711    }
 3712
 3713    pub fn project_path_for_path(
 3714        project: Entity<Project>,
 3715        abs_path: &Path,
 3716        visible: bool,
 3717        cx: &mut App,
 3718    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3719        let entry = project.update(cx, |project, cx| {
 3720            project.find_or_create_worktree(abs_path, visible, cx)
 3721        });
 3722        cx.spawn(async move |cx| {
 3723            let (worktree, path) = entry.await?;
 3724            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3725            Ok((worktree, ProjectPath { worktree_id, path }))
 3726        })
 3727    }
 3728
 3729    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3730        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3731    }
 3732
 3733    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3734        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3735    }
 3736
 3737    pub fn items_of_type<'a, T: Item>(
 3738        &'a self,
 3739        cx: &'a App,
 3740    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3741        self.panes
 3742            .iter()
 3743            .flat_map(|pane| pane.read(cx).items_of_type())
 3744    }
 3745
 3746    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3747        self.active_pane().read(cx).active_item()
 3748    }
 3749
 3750    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3751        let item = self.active_item(cx)?;
 3752        item.to_any_view().downcast::<I>().ok()
 3753    }
 3754
 3755    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3756        self.active_item(cx).and_then(|item| item.project_path(cx))
 3757    }
 3758
 3759    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3760        self.recent_navigation_history_iter(cx)
 3761            .filter_map(|(path, abs_path)| {
 3762                let worktree = self
 3763                    .project
 3764                    .read(cx)
 3765                    .worktree_for_id(path.worktree_id, cx)?;
 3766                if worktree.read(cx).is_visible() {
 3767                    abs_path
 3768                } else {
 3769                    None
 3770                }
 3771            })
 3772            .next()
 3773    }
 3774
 3775    pub fn save_active_item(
 3776        &mut self,
 3777        save_intent: SaveIntent,
 3778        window: &mut Window,
 3779        cx: &mut App,
 3780    ) -> Task<Result<()>> {
 3781        let project = self.project.clone();
 3782        let pane = self.active_pane();
 3783        let item = pane.read(cx).active_item();
 3784        let pane = pane.downgrade();
 3785
 3786        window.spawn(cx, async move |cx| {
 3787            if let Some(item) = item {
 3788                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3789                    .await
 3790                    .map(|_| ())
 3791            } else {
 3792                Ok(())
 3793            }
 3794        })
 3795    }
 3796
 3797    pub fn close_inactive_items_and_panes(
 3798        &mut self,
 3799        action: &CloseInactiveTabsAndPanes,
 3800        window: &mut Window,
 3801        cx: &mut Context<Self>,
 3802    ) {
 3803        if let Some(task) = self.close_all_internal(
 3804            true,
 3805            action.save_intent.unwrap_or(SaveIntent::Close),
 3806            window,
 3807            cx,
 3808        ) {
 3809            task.detach_and_log_err(cx)
 3810        }
 3811    }
 3812
 3813    pub fn close_all_items_and_panes(
 3814        &mut self,
 3815        action: &CloseAllItemsAndPanes,
 3816        window: &mut Window,
 3817        cx: &mut Context<Self>,
 3818    ) {
 3819        if let Some(task) = self.close_all_internal(
 3820            false,
 3821            action.save_intent.unwrap_or(SaveIntent::Close),
 3822            window,
 3823            cx,
 3824        ) {
 3825            task.detach_and_log_err(cx)
 3826        }
 3827    }
 3828
 3829    /// Closes the active item across all panes.
 3830    pub fn close_item_in_all_panes(
 3831        &mut self,
 3832        action: &CloseItemInAllPanes,
 3833        window: &mut Window,
 3834        cx: &mut Context<Self>,
 3835    ) {
 3836        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3837            return;
 3838        };
 3839
 3840        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3841        let close_pinned = action.close_pinned;
 3842
 3843        if let Some(project_path) = active_item.project_path(cx) {
 3844            self.close_items_with_project_path(
 3845                &project_path,
 3846                save_intent,
 3847                close_pinned,
 3848                window,
 3849                cx,
 3850            );
 3851        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3852            let item_id = active_item.item_id();
 3853            self.active_pane().update(cx, |pane, cx| {
 3854                pane.close_item_by_id(item_id, save_intent, window, cx)
 3855                    .detach_and_log_err(cx);
 3856            });
 3857        }
 3858    }
 3859
 3860    /// Closes all items with the given project path across all panes.
 3861    pub fn close_items_with_project_path(
 3862        &mut self,
 3863        project_path: &ProjectPath,
 3864        save_intent: SaveIntent,
 3865        close_pinned: bool,
 3866        window: &mut Window,
 3867        cx: &mut Context<Self>,
 3868    ) {
 3869        let panes = self.panes().to_vec();
 3870        for pane in panes {
 3871            pane.update(cx, |pane, cx| {
 3872                pane.close_items_for_project_path(
 3873                    project_path,
 3874                    save_intent,
 3875                    close_pinned,
 3876                    window,
 3877                    cx,
 3878                )
 3879                .detach_and_log_err(cx);
 3880            });
 3881        }
 3882    }
 3883
 3884    fn close_all_internal(
 3885        &mut self,
 3886        retain_active_pane: bool,
 3887        save_intent: SaveIntent,
 3888        window: &mut Window,
 3889        cx: &mut Context<Self>,
 3890    ) -> Option<Task<Result<()>>> {
 3891        let current_pane = self.active_pane();
 3892
 3893        let mut tasks = Vec::new();
 3894
 3895        if retain_active_pane {
 3896            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3897                pane.close_other_items(
 3898                    &CloseOtherItems {
 3899                        save_intent: None,
 3900                        close_pinned: false,
 3901                    },
 3902                    None,
 3903                    window,
 3904                    cx,
 3905                )
 3906            });
 3907
 3908            tasks.push(current_pane_close);
 3909        }
 3910
 3911        for pane in self.panes() {
 3912            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3913                continue;
 3914            }
 3915
 3916            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3917                pane.close_all_items(
 3918                    &CloseAllItems {
 3919                        save_intent: Some(save_intent),
 3920                        close_pinned: false,
 3921                    },
 3922                    window,
 3923                    cx,
 3924                )
 3925            });
 3926
 3927            tasks.push(close_pane_items)
 3928        }
 3929
 3930        if tasks.is_empty() {
 3931            None
 3932        } else {
 3933            Some(cx.spawn_in(window, async move |_, _| {
 3934                for task in tasks {
 3935                    task.await?
 3936                }
 3937                Ok(())
 3938            }))
 3939        }
 3940    }
 3941
 3942    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3943        self.dock_at_position(position).read(cx).is_open()
 3944    }
 3945
 3946    pub fn toggle_dock(
 3947        &mut self,
 3948        dock_side: DockPosition,
 3949        window: &mut Window,
 3950        cx: &mut Context<Self>,
 3951    ) {
 3952        let mut focus_center = false;
 3953        let mut reveal_dock = false;
 3954
 3955        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3956        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3957
 3958        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3959            telemetry::event!(
 3960                "Panel Button Clicked",
 3961                name = panel.persistent_name(),
 3962                toggle_state = !was_visible
 3963            );
 3964        }
 3965        if was_visible {
 3966            self.save_open_dock_positions(cx);
 3967        }
 3968
 3969        let dock = self.dock_at_position(dock_side);
 3970        dock.update(cx, |dock, cx| {
 3971            dock.set_open(!was_visible, window, cx);
 3972
 3973            if dock.active_panel().is_none() {
 3974                let Some(panel_ix) = dock
 3975                    .first_enabled_panel_idx(cx)
 3976                    .log_with_level(log::Level::Info)
 3977                else {
 3978                    return;
 3979                };
 3980                dock.activate_panel(panel_ix, window, cx);
 3981            }
 3982
 3983            if let Some(active_panel) = dock.active_panel() {
 3984                if was_visible {
 3985                    if active_panel
 3986                        .panel_focus_handle(cx)
 3987                        .contains_focused(window, cx)
 3988                    {
 3989                        focus_center = true;
 3990                    }
 3991                } else {
 3992                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3993                    window.focus(focus_handle, cx);
 3994                    reveal_dock = true;
 3995                }
 3996            }
 3997        });
 3998
 3999        if reveal_dock {
 4000            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 4001        }
 4002
 4003        if focus_center {
 4004            self.active_pane
 4005                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4006        }
 4007
 4008        cx.notify();
 4009        self.serialize_workspace(window, cx);
 4010    }
 4011
 4012    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 4013        self.all_docks().into_iter().find(|&dock| {
 4014            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 4015        })
 4016    }
 4017
 4018    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 4019        if let Some(dock) = self.active_dock(window, cx).cloned() {
 4020            self.save_open_dock_positions(cx);
 4021            dock.update(cx, |dock, cx| {
 4022                dock.set_open(false, window, cx);
 4023            });
 4024            return true;
 4025        }
 4026        false
 4027    }
 4028
 4029    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4030        self.save_open_dock_positions(cx);
 4031        for dock in self.all_docks() {
 4032            dock.update(cx, |dock, cx| {
 4033                dock.set_open(false, window, cx);
 4034            });
 4035        }
 4036
 4037        cx.focus_self(window);
 4038        cx.notify();
 4039        self.serialize_workspace(window, cx);
 4040    }
 4041
 4042    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 4043        self.all_docks()
 4044            .into_iter()
 4045            .filter_map(|dock| {
 4046                let dock_ref = dock.read(cx);
 4047                if dock_ref.is_open() {
 4048                    Some(dock_ref.position())
 4049                } else {
 4050                    None
 4051                }
 4052            })
 4053            .collect()
 4054    }
 4055
 4056    /// Saves the positions of currently open docks.
 4057    ///
 4058    /// Updates `last_open_dock_positions` with positions of all currently open
 4059    /// docks, to later be restored by the 'Toggle All Docks' action.
 4060    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 4061        let open_dock_positions = self.get_open_dock_positions(cx);
 4062        if !open_dock_positions.is_empty() {
 4063            self.last_open_dock_positions = open_dock_positions;
 4064        }
 4065    }
 4066
 4067    /// Toggles all docks between open and closed states.
 4068    ///
 4069    /// If any docks are open, closes all and remembers their positions. If all
 4070    /// docks are closed, restores the last remembered dock configuration.
 4071    fn toggle_all_docks(
 4072        &mut self,
 4073        _: &ToggleAllDocks,
 4074        window: &mut Window,
 4075        cx: &mut Context<Self>,
 4076    ) {
 4077        let open_dock_positions = self.get_open_dock_positions(cx);
 4078
 4079        if !open_dock_positions.is_empty() {
 4080            self.close_all_docks(window, cx);
 4081        } else if !self.last_open_dock_positions.is_empty() {
 4082            self.restore_last_open_docks(window, cx);
 4083        }
 4084    }
 4085
 4086    /// Reopens docks from the most recently remembered configuration.
 4087    ///
 4088    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 4089    /// and clears the stored positions.
 4090    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4091        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 4092
 4093        for position in positions_to_open {
 4094            let dock = self.dock_at_position(position);
 4095            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 4096        }
 4097
 4098        cx.focus_self(window);
 4099        cx.notify();
 4100        self.serialize_workspace(window, cx);
 4101    }
 4102
 4103    /// Transfer focus to the panel of the given type.
 4104    pub fn focus_panel<T: Panel>(
 4105        &mut self,
 4106        window: &mut Window,
 4107        cx: &mut Context<Self>,
 4108    ) -> Option<Entity<T>> {
 4109        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 4110        panel.to_any().downcast().ok()
 4111    }
 4112
 4113    /// Focus the panel of the given type if it isn't already focused. If it is
 4114    /// already focused, then transfer focus back to the workspace center.
 4115    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 4116    /// panel when transferring focus back to the center.
 4117    pub fn toggle_panel_focus<T: Panel>(
 4118        &mut self,
 4119        window: &mut Window,
 4120        cx: &mut Context<Self>,
 4121    ) -> bool {
 4122        let mut did_focus_panel = false;
 4123        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 4124            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 4125            did_focus_panel
 4126        });
 4127
 4128        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4129            self.close_panel::<T>(window, cx);
 4130        }
 4131
 4132        telemetry::event!(
 4133            "Panel Button Clicked",
 4134            name = T::persistent_name(),
 4135            toggle_state = did_focus_panel
 4136        );
 4137
 4138        did_focus_panel
 4139    }
 4140
 4141    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4142        if let Some(item) = self.active_item(cx) {
 4143            item.item_focus_handle(cx).focus(window, cx);
 4144        } else {
 4145            log::error!("Could not find a focus target when switching focus to the center panes",);
 4146        }
 4147    }
 4148
 4149    pub fn activate_panel_for_proto_id(
 4150        &mut self,
 4151        panel_id: PanelId,
 4152        window: &mut Window,
 4153        cx: &mut Context<Self>,
 4154    ) -> Option<Arc<dyn PanelHandle>> {
 4155        let mut panel = None;
 4156        for dock in self.all_docks() {
 4157            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4158                panel = dock.update(cx, |dock, cx| {
 4159                    dock.activate_panel(panel_index, window, cx);
 4160                    dock.set_open(true, window, cx);
 4161                    dock.active_panel().cloned()
 4162                });
 4163                break;
 4164            }
 4165        }
 4166
 4167        if panel.is_some() {
 4168            cx.notify();
 4169            self.serialize_workspace(window, cx);
 4170        }
 4171
 4172        panel
 4173    }
 4174
 4175    /// Focus or unfocus the given panel type, depending on the given callback.
 4176    fn focus_or_unfocus_panel<T: Panel>(
 4177        &mut self,
 4178        window: &mut Window,
 4179        cx: &mut Context<Self>,
 4180        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4181    ) -> Option<Arc<dyn PanelHandle>> {
 4182        let mut result_panel = None;
 4183        let mut serialize = false;
 4184        for dock in self.all_docks() {
 4185            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4186                let mut focus_center = false;
 4187                let panel = dock.update(cx, |dock, cx| {
 4188                    dock.activate_panel(panel_index, window, cx);
 4189
 4190                    let panel = dock.active_panel().cloned();
 4191                    if let Some(panel) = panel.as_ref() {
 4192                        if should_focus(&**panel, window, cx) {
 4193                            dock.set_open(true, window, cx);
 4194                            panel.panel_focus_handle(cx).focus(window, cx);
 4195                        } else {
 4196                            focus_center = true;
 4197                        }
 4198                    }
 4199                    panel
 4200                });
 4201
 4202                if focus_center {
 4203                    self.active_pane
 4204                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4205                }
 4206
 4207                result_panel = panel;
 4208                serialize = true;
 4209                break;
 4210            }
 4211        }
 4212
 4213        if serialize {
 4214            self.serialize_workspace(window, cx);
 4215        }
 4216
 4217        cx.notify();
 4218        result_panel
 4219    }
 4220
 4221    /// Open the panel of the given type
 4222    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4223        for dock in self.all_docks() {
 4224            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4225                dock.update(cx, |dock, cx| {
 4226                    dock.activate_panel(panel_index, window, cx);
 4227                    dock.set_open(true, window, cx);
 4228                });
 4229            }
 4230        }
 4231    }
 4232
 4233    /// Open the panel of the given type, dismissing any zoomed items that
 4234    /// would obscure it (e.g. a zoomed terminal).
 4235    pub fn reveal_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4236        let dock_position = self.all_docks().iter().find_map(|dock| {
 4237            let dock = dock.read(cx);
 4238            dock.panel_index_for_type::<T>().map(|_| dock.position())
 4239        });
 4240        self.dismiss_zoomed_items_to_reveal(dock_position, window, cx);
 4241        self.open_panel::<T>(window, cx);
 4242    }
 4243
 4244    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4245        for dock in self.all_docks().iter() {
 4246            dock.update(cx, |dock, cx| {
 4247                if dock.panel::<T>().is_some() {
 4248                    dock.set_open(false, window, cx)
 4249                }
 4250            })
 4251        }
 4252    }
 4253
 4254    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4255        self.all_docks()
 4256            .iter()
 4257            .find_map(|dock| dock.read(cx).panel::<T>())
 4258    }
 4259
 4260    fn dismiss_zoomed_items_to_reveal(
 4261        &mut self,
 4262        dock_to_reveal: Option<DockPosition>,
 4263        window: &mut Window,
 4264        cx: &mut Context<Self>,
 4265    ) {
 4266        // If a center pane is zoomed, unzoom it.
 4267        for pane in &self.panes {
 4268            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4269                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4270            }
 4271        }
 4272
 4273        // If another dock is zoomed, hide it.
 4274        let mut focus_center = false;
 4275        for dock in self.all_docks() {
 4276            dock.update(cx, |dock, cx| {
 4277                if Some(dock.position()) != dock_to_reveal
 4278                    && let Some(panel) = dock.active_panel()
 4279                    && panel.is_zoomed(window, cx)
 4280                {
 4281                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4282                    dock.set_open(false, window, cx);
 4283                }
 4284            });
 4285        }
 4286
 4287        if focus_center {
 4288            self.active_pane
 4289                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4290        }
 4291
 4292        if self.zoomed_position != dock_to_reveal {
 4293            self.zoomed = None;
 4294            self.zoomed_position = None;
 4295            cx.emit(Event::ZoomChanged);
 4296        }
 4297
 4298        cx.notify();
 4299    }
 4300
 4301    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4302        let pane = cx.new(|cx| {
 4303            let mut pane = Pane::new(
 4304                self.weak_handle(),
 4305                self.project.clone(),
 4306                self.pane_history_timestamp.clone(),
 4307                None,
 4308                NewFile.boxed_clone(),
 4309                true,
 4310                window,
 4311                cx,
 4312            );
 4313            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4314            pane
 4315        });
 4316        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4317            .detach();
 4318        self.panes.push(pane.clone());
 4319
 4320        window.focus(&pane.focus_handle(cx), cx);
 4321
 4322        cx.emit(Event::PaneAdded(pane.clone()));
 4323        pane
 4324    }
 4325
 4326    pub fn add_item_to_center(
 4327        &mut self,
 4328        item: Box<dyn ItemHandle>,
 4329        window: &mut Window,
 4330        cx: &mut Context<Self>,
 4331    ) -> bool {
 4332        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4333            if let Some(center_pane) = center_pane.upgrade() {
 4334                center_pane.update(cx, |pane, cx| {
 4335                    pane.add_item(item, true, true, None, window, cx)
 4336                });
 4337                true
 4338            } else {
 4339                false
 4340            }
 4341        } else {
 4342            false
 4343        }
 4344    }
 4345
 4346    pub fn add_item_to_active_pane(
 4347        &mut self,
 4348        item: Box<dyn ItemHandle>,
 4349        destination_index: Option<usize>,
 4350        focus_item: bool,
 4351        window: &mut Window,
 4352        cx: &mut App,
 4353    ) {
 4354        self.add_item(
 4355            self.active_pane.clone(),
 4356            item,
 4357            destination_index,
 4358            false,
 4359            focus_item,
 4360            window,
 4361            cx,
 4362        )
 4363    }
 4364
 4365    pub fn add_item(
 4366        &mut self,
 4367        pane: Entity<Pane>,
 4368        item: Box<dyn ItemHandle>,
 4369        destination_index: Option<usize>,
 4370        activate_pane: bool,
 4371        focus_item: bool,
 4372        window: &mut Window,
 4373        cx: &mut App,
 4374    ) {
 4375        pane.update(cx, |pane, cx| {
 4376            pane.add_item(
 4377                item,
 4378                activate_pane,
 4379                focus_item,
 4380                destination_index,
 4381                window,
 4382                cx,
 4383            )
 4384        });
 4385    }
 4386
 4387    pub fn split_item(
 4388        &mut self,
 4389        split_direction: SplitDirection,
 4390        item: Box<dyn ItemHandle>,
 4391        window: &mut Window,
 4392        cx: &mut Context<Self>,
 4393    ) {
 4394        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4395        self.add_item(new_pane, item, None, true, true, window, cx);
 4396    }
 4397
 4398    pub fn open_abs_path(
 4399        &mut self,
 4400        abs_path: PathBuf,
 4401        options: OpenOptions,
 4402        window: &mut Window,
 4403        cx: &mut Context<Self>,
 4404    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4405        cx.spawn_in(window, async move |workspace, cx| {
 4406            let open_paths_task_result = workspace
 4407                .update_in(cx, |workspace, window, cx| {
 4408                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4409                })
 4410                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4411                .await;
 4412            anyhow::ensure!(
 4413                open_paths_task_result.len() == 1,
 4414                "open abs path {abs_path:?} task returned incorrect number of results"
 4415            );
 4416            match open_paths_task_result
 4417                .into_iter()
 4418                .next()
 4419                .expect("ensured single task result")
 4420            {
 4421                Some(open_result) => {
 4422                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4423                }
 4424                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4425            }
 4426        })
 4427    }
 4428
 4429    pub fn split_abs_path(
 4430        &mut self,
 4431        abs_path: PathBuf,
 4432        visible: bool,
 4433        window: &mut Window,
 4434        cx: &mut Context<Self>,
 4435    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4436        let project_path_task =
 4437            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4438        cx.spawn_in(window, async move |this, cx| {
 4439            let (_, path) = project_path_task.await?;
 4440            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4441                .await
 4442        })
 4443    }
 4444
 4445    pub fn open_path(
 4446        &mut self,
 4447        path: impl Into<ProjectPath>,
 4448        pane: Option<WeakEntity<Pane>>,
 4449        focus_item: bool,
 4450        window: &mut Window,
 4451        cx: &mut App,
 4452    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4453        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4454    }
 4455
 4456    pub fn open_path_preview(
 4457        &mut self,
 4458        path: impl Into<ProjectPath>,
 4459        pane: Option<WeakEntity<Pane>>,
 4460        focus_item: bool,
 4461        allow_preview: bool,
 4462        activate: bool,
 4463        window: &mut Window,
 4464        cx: &mut App,
 4465    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4466        let pane = pane.unwrap_or_else(|| {
 4467            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4468                self.panes
 4469                    .first()
 4470                    .expect("There must be an active pane")
 4471                    .downgrade()
 4472            })
 4473        });
 4474
 4475        let project_path = path.into();
 4476        let task = self.load_path(project_path.clone(), window, cx);
 4477        window.spawn(cx, async move |cx| {
 4478            let (project_entry_id, build_item) = task.await?;
 4479
 4480            pane.update_in(cx, |pane, window, cx| {
 4481                pane.open_item(
 4482                    project_entry_id,
 4483                    project_path,
 4484                    focus_item,
 4485                    allow_preview,
 4486                    activate,
 4487                    None,
 4488                    window,
 4489                    cx,
 4490                    build_item,
 4491                )
 4492            })
 4493        })
 4494    }
 4495
 4496    pub fn split_path(
 4497        &mut self,
 4498        path: impl Into<ProjectPath>,
 4499        window: &mut Window,
 4500        cx: &mut Context<Self>,
 4501    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4502        self.split_path_preview(path, false, None, window, cx)
 4503    }
 4504
 4505    pub fn split_path_preview(
 4506        &mut self,
 4507        path: impl Into<ProjectPath>,
 4508        allow_preview: bool,
 4509        split_direction: Option<SplitDirection>,
 4510        window: &mut Window,
 4511        cx: &mut Context<Self>,
 4512    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4513        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4514            self.panes
 4515                .first()
 4516                .expect("There must be an active pane")
 4517                .downgrade()
 4518        });
 4519
 4520        if let Member::Pane(center_pane) = &self.center.root
 4521            && center_pane.read(cx).items_len() == 0
 4522        {
 4523            return self.open_path(path, Some(pane), true, window, cx);
 4524        }
 4525
 4526        let project_path = path.into();
 4527        let task = self.load_path(project_path.clone(), window, cx);
 4528        cx.spawn_in(window, async move |this, cx| {
 4529            let (project_entry_id, build_item) = task.await?;
 4530            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4531                let pane = pane.upgrade()?;
 4532                let new_pane = this.split_pane(
 4533                    pane,
 4534                    split_direction.unwrap_or(SplitDirection::Right),
 4535                    window,
 4536                    cx,
 4537                );
 4538                new_pane.update(cx, |new_pane, cx| {
 4539                    Some(new_pane.open_item(
 4540                        project_entry_id,
 4541                        project_path,
 4542                        true,
 4543                        allow_preview,
 4544                        true,
 4545                        None,
 4546                        window,
 4547                        cx,
 4548                        build_item,
 4549                    ))
 4550                })
 4551            })
 4552            .map(|option| option.context("pane was dropped"))?
 4553        })
 4554    }
 4555
 4556    fn load_path(
 4557        &mut self,
 4558        path: ProjectPath,
 4559        window: &mut Window,
 4560        cx: &mut App,
 4561    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4562        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4563        registry.open_path(self.project(), &path, window, cx)
 4564    }
 4565
 4566    pub fn find_project_item<T>(
 4567        &self,
 4568        pane: &Entity<Pane>,
 4569        project_item: &Entity<T::Item>,
 4570        cx: &App,
 4571    ) -> Option<Entity<T>>
 4572    where
 4573        T: ProjectItem,
 4574    {
 4575        use project::ProjectItem as _;
 4576        let project_item = project_item.read(cx);
 4577        let entry_id = project_item.entry_id(cx);
 4578        let project_path = project_item.project_path(cx);
 4579
 4580        let mut item = None;
 4581        if let Some(entry_id) = entry_id {
 4582            item = pane.read(cx).item_for_entry(entry_id, cx);
 4583        }
 4584        if item.is_none()
 4585            && let Some(project_path) = project_path
 4586        {
 4587            item = pane.read(cx).item_for_path(project_path, cx);
 4588        }
 4589
 4590        item.and_then(|item| item.downcast::<T>())
 4591    }
 4592
 4593    pub fn is_project_item_open<T>(
 4594        &self,
 4595        pane: &Entity<Pane>,
 4596        project_item: &Entity<T::Item>,
 4597        cx: &App,
 4598    ) -> bool
 4599    where
 4600        T: ProjectItem,
 4601    {
 4602        self.find_project_item::<T>(pane, project_item, cx)
 4603            .is_some()
 4604    }
 4605
 4606    pub fn open_project_item<T>(
 4607        &mut self,
 4608        pane: Entity<Pane>,
 4609        project_item: Entity<T::Item>,
 4610        activate_pane: bool,
 4611        focus_item: bool,
 4612        keep_old_preview: bool,
 4613        allow_new_preview: bool,
 4614        window: &mut Window,
 4615        cx: &mut Context<Self>,
 4616    ) -> Entity<T>
 4617    where
 4618        T: ProjectItem,
 4619    {
 4620        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4621
 4622        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4623            if !keep_old_preview
 4624                && let Some(old_id) = old_item_id
 4625                && old_id != item.item_id()
 4626            {
 4627                // switching to a different item, so unpreview old active item
 4628                pane.update(cx, |pane, _| {
 4629                    pane.unpreview_item_if_preview(old_id);
 4630                });
 4631            }
 4632
 4633            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4634            if !allow_new_preview {
 4635                pane.update(cx, |pane, _| {
 4636                    pane.unpreview_item_if_preview(item.item_id());
 4637                });
 4638            }
 4639            return item;
 4640        }
 4641
 4642        let item = pane.update(cx, |pane, cx| {
 4643            cx.new(|cx| {
 4644                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4645            })
 4646        });
 4647        let mut destination_index = None;
 4648        pane.update(cx, |pane, cx| {
 4649            if !keep_old_preview && let Some(old_id) = old_item_id {
 4650                pane.unpreview_item_if_preview(old_id);
 4651            }
 4652            if allow_new_preview {
 4653                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4654            }
 4655        });
 4656
 4657        self.add_item(
 4658            pane,
 4659            Box::new(item.clone()),
 4660            destination_index,
 4661            activate_pane,
 4662            focus_item,
 4663            window,
 4664            cx,
 4665        );
 4666        item
 4667    }
 4668
 4669    pub fn open_shared_screen(
 4670        &mut self,
 4671        peer_id: PeerId,
 4672        window: &mut Window,
 4673        cx: &mut Context<Self>,
 4674    ) {
 4675        if let Some(shared_screen) =
 4676            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4677        {
 4678            self.active_pane.update(cx, |pane, cx| {
 4679                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4680            });
 4681        }
 4682    }
 4683
 4684    pub fn activate_item(
 4685        &mut self,
 4686        item: &dyn ItemHandle,
 4687        activate_pane: bool,
 4688        focus_item: bool,
 4689        window: &mut Window,
 4690        cx: &mut App,
 4691    ) -> bool {
 4692        let result = self.panes.iter().find_map(|pane| {
 4693            pane.read(cx)
 4694                .index_for_item(item)
 4695                .map(|ix| (pane.clone(), ix))
 4696        });
 4697        if let Some((pane, ix)) = result {
 4698            pane.update(cx, |pane, cx| {
 4699                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4700            });
 4701            true
 4702        } else {
 4703            false
 4704        }
 4705    }
 4706
 4707    fn activate_pane_at_index(
 4708        &mut self,
 4709        action: &ActivatePane,
 4710        window: &mut Window,
 4711        cx: &mut Context<Self>,
 4712    ) {
 4713        let panes = self.center.panes();
 4714        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4715            window.focus(&pane.focus_handle(cx), cx);
 4716        } else {
 4717            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4718                .detach();
 4719        }
 4720    }
 4721
 4722    fn move_item_to_pane_at_index(
 4723        &mut self,
 4724        action: &MoveItemToPane,
 4725        window: &mut Window,
 4726        cx: &mut Context<Self>,
 4727    ) {
 4728        let panes = self.center.panes();
 4729        let destination = match panes.get(action.destination) {
 4730            Some(&destination) => destination.clone(),
 4731            None => {
 4732                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4733                    return;
 4734                }
 4735                let direction = SplitDirection::Right;
 4736                let split_off_pane = self
 4737                    .find_pane_in_direction(direction, cx)
 4738                    .unwrap_or_else(|| self.active_pane.clone());
 4739                let new_pane = self.add_pane(window, cx);
 4740                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4741                new_pane
 4742            }
 4743        };
 4744
 4745        if action.clone {
 4746            if self
 4747                .active_pane
 4748                .read(cx)
 4749                .active_item()
 4750                .is_some_and(|item| item.can_split(cx))
 4751            {
 4752                clone_active_item(
 4753                    self.database_id(),
 4754                    &self.active_pane,
 4755                    &destination,
 4756                    action.focus,
 4757                    window,
 4758                    cx,
 4759                );
 4760                return;
 4761            }
 4762        }
 4763        move_active_item(
 4764            &self.active_pane,
 4765            &destination,
 4766            action.focus,
 4767            true,
 4768            window,
 4769            cx,
 4770        )
 4771    }
 4772
 4773    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4774        let panes = self.center.panes();
 4775        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4776            let next_ix = (ix + 1) % panes.len();
 4777            let next_pane = panes[next_ix].clone();
 4778            window.focus(&next_pane.focus_handle(cx), cx);
 4779        }
 4780    }
 4781
 4782    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4783        let panes = self.center.panes();
 4784        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4785            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4786            let prev_pane = panes[prev_ix].clone();
 4787            window.focus(&prev_pane.focus_handle(cx), cx);
 4788        }
 4789    }
 4790
 4791    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4792        let last_pane = self.center.last_pane();
 4793        window.focus(&last_pane.focus_handle(cx), cx);
 4794    }
 4795
 4796    pub fn activate_pane_in_direction(
 4797        &mut self,
 4798        direction: SplitDirection,
 4799        window: &mut Window,
 4800        cx: &mut App,
 4801    ) {
 4802        use ActivateInDirectionTarget as Target;
 4803        enum Origin {
 4804            Sidebar,
 4805            LeftDock,
 4806            RightDock,
 4807            BottomDock,
 4808            Center,
 4809        }
 4810
 4811        let origin: Origin = if self
 4812            .sidebar_focus_handle
 4813            .as_ref()
 4814            .is_some_and(|h| h.contains_focused(window, cx))
 4815        {
 4816            Origin::Sidebar
 4817        } else {
 4818            [
 4819                (&self.left_dock, Origin::LeftDock),
 4820                (&self.right_dock, Origin::RightDock),
 4821                (&self.bottom_dock, Origin::BottomDock),
 4822            ]
 4823            .into_iter()
 4824            .find_map(|(dock, origin)| {
 4825                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4826                    Some(origin)
 4827                } else {
 4828                    None
 4829                }
 4830            })
 4831            .unwrap_or(Origin::Center)
 4832        };
 4833
 4834        let get_last_active_pane = || {
 4835            let pane = self
 4836                .last_active_center_pane
 4837                .clone()
 4838                .unwrap_or_else(|| {
 4839                    self.panes
 4840                        .first()
 4841                        .expect("There must be an active pane")
 4842                        .downgrade()
 4843                })
 4844                .upgrade()?;
 4845            (pane.read(cx).items_len() != 0).then_some(pane)
 4846        };
 4847
 4848        let try_dock =
 4849            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4850
 4851        let sidebar_target = self
 4852            .sidebar_focus_handle
 4853            .as_ref()
 4854            .map(|h| Target::Sidebar(h.clone()));
 4855
 4856        let sidebar_on_right = self
 4857            .multi_workspace
 4858            .as_ref()
 4859            .and_then(|mw| mw.upgrade())
 4860            .map_or(false, |mw| {
 4861                mw.read(cx).sidebar_side(cx) == SidebarSide::Right
 4862            });
 4863
 4864        let away_from_sidebar = if sidebar_on_right {
 4865            SplitDirection::Left
 4866        } else {
 4867            SplitDirection::Right
 4868        };
 4869
 4870        let (near_dock, far_dock) = if sidebar_on_right {
 4871            (&self.right_dock, &self.left_dock)
 4872        } else {
 4873            (&self.left_dock, &self.right_dock)
 4874        };
 4875
 4876        let target = match (origin, direction) {
 4877            (Origin::Sidebar, dir) if dir == away_from_sidebar => try_dock(near_dock)
 4878                .or_else(|| get_last_active_pane().map(Target::Pane))
 4879                .or_else(|| try_dock(&self.bottom_dock))
 4880                .or_else(|| try_dock(far_dock)),
 4881
 4882            (Origin::Sidebar, _) => None,
 4883
 4884            // We're in the center, so we first try to go to a different pane,
 4885            // otherwise try to go to a dock.
 4886            (Origin::Center, direction) => {
 4887                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4888                    Some(Target::Pane(pane))
 4889                } else {
 4890                    match direction {
 4891                        SplitDirection::Up => None,
 4892                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4893                        SplitDirection::Left => {
 4894                            let dock_target = try_dock(&self.left_dock);
 4895                            if sidebar_on_right {
 4896                                dock_target
 4897                            } else {
 4898                                dock_target.or(sidebar_target)
 4899                            }
 4900                        }
 4901                        SplitDirection::Right => {
 4902                            let dock_target = try_dock(&self.right_dock);
 4903                            if sidebar_on_right {
 4904                                dock_target.or(sidebar_target)
 4905                            } else {
 4906                                dock_target
 4907                            }
 4908                        }
 4909                    }
 4910                }
 4911            }
 4912
 4913            (Origin::LeftDock, SplitDirection::Right) => {
 4914                if let Some(last_active_pane) = get_last_active_pane() {
 4915                    Some(Target::Pane(last_active_pane))
 4916                } else {
 4917                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4918                }
 4919            }
 4920
 4921            (Origin::LeftDock, SplitDirection::Left) => {
 4922                if sidebar_on_right {
 4923                    None
 4924                } else {
 4925                    sidebar_target
 4926                }
 4927            }
 4928
 4929            (Origin::LeftDock, SplitDirection::Down)
 4930            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4931
 4932            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4933            (Origin::BottomDock, SplitDirection::Left) => {
 4934                let dock_target = try_dock(&self.left_dock);
 4935                if sidebar_on_right {
 4936                    dock_target
 4937                } else {
 4938                    dock_target.or(sidebar_target)
 4939                }
 4940            }
 4941            (Origin::BottomDock, SplitDirection::Right) => {
 4942                let dock_target = try_dock(&self.right_dock);
 4943                if sidebar_on_right {
 4944                    dock_target.or(sidebar_target)
 4945                } else {
 4946                    dock_target
 4947                }
 4948            }
 4949
 4950            (Origin::RightDock, SplitDirection::Left) => {
 4951                if let Some(last_active_pane) = get_last_active_pane() {
 4952                    Some(Target::Pane(last_active_pane))
 4953                } else {
 4954                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4955                }
 4956            }
 4957
 4958            (Origin::RightDock, SplitDirection::Right) => {
 4959                if sidebar_on_right {
 4960                    sidebar_target
 4961                } else {
 4962                    None
 4963                }
 4964            }
 4965
 4966            _ => None,
 4967        };
 4968
 4969        match target {
 4970            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4971                let pane = pane.read(cx);
 4972                if let Some(item) = pane.active_item() {
 4973                    item.item_focus_handle(cx).focus(window, cx);
 4974                } else {
 4975                    log::error!(
 4976                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4977                    );
 4978                }
 4979            }
 4980            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4981                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4982                window.defer(cx, move |window, cx| {
 4983                    let dock = dock.read(cx);
 4984                    if let Some(panel) = dock.active_panel() {
 4985                        panel.panel_focus_handle(cx).focus(window, cx);
 4986                    } else {
 4987                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4988                    }
 4989                })
 4990            }
 4991            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4992                focus_handle.focus(window, cx);
 4993            }
 4994            None => {}
 4995        }
 4996    }
 4997
 4998    pub fn move_item_to_pane_in_direction(
 4999        &mut self,
 5000        action: &MoveItemToPaneInDirection,
 5001        window: &mut Window,
 5002        cx: &mut Context<Self>,
 5003    ) {
 5004        let destination = match self.find_pane_in_direction(action.direction, cx) {
 5005            Some(destination) => destination,
 5006            None => {
 5007                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 5008                    return;
 5009                }
 5010                let new_pane = self.add_pane(window, cx);
 5011                self.center
 5012                    .split(&self.active_pane, &new_pane, action.direction, cx);
 5013                new_pane
 5014            }
 5015        };
 5016
 5017        if action.clone {
 5018            if self
 5019                .active_pane
 5020                .read(cx)
 5021                .active_item()
 5022                .is_some_and(|item| item.can_split(cx))
 5023            {
 5024                clone_active_item(
 5025                    self.database_id(),
 5026                    &self.active_pane,
 5027                    &destination,
 5028                    action.focus,
 5029                    window,
 5030                    cx,
 5031                );
 5032                return;
 5033            }
 5034        }
 5035        move_active_item(
 5036            &self.active_pane,
 5037            &destination,
 5038            action.focus,
 5039            true,
 5040            window,
 5041            cx,
 5042        );
 5043    }
 5044
 5045    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 5046        self.center.bounding_box_for_pane(pane)
 5047    }
 5048
 5049    pub fn find_pane_in_direction(
 5050        &mut self,
 5051        direction: SplitDirection,
 5052        cx: &App,
 5053    ) -> Option<Entity<Pane>> {
 5054        self.center
 5055            .find_pane_in_direction(&self.active_pane, direction, cx)
 5056            .cloned()
 5057    }
 5058
 5059    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5060        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 5061            self.center.swap(&self.active_pane, &to, cx);
 5062            cx.notify();
 5063        }
 5064    }
 5065
 5066    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5067        if self
 5068            .center
 5069            .move_to_border(&self.active_pane, direction, cx)
 5070            .unwrap()
 5071        {
 5072            cx.notify();
 5073        }
 5074    }
 5075
 5076    pub fn resize_pane(
 5077        &mut self,
 5078        axis: gpui::Axis,
 5079        amount: Pixels,
 5080        window: &mut Window,
 5081        cx: &mut Context<Self>,
 5082    ) {
 5083        let docks = self.all_docks();
 5084        let active_dock = docks
 5085            .into_iter()
 5086            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 5087
 5088        if let Some(dock_entity) = active_dock {
 5089            let dock = dock_entity.read(cx);
 5090            let Some(panel_size) = self.dock_size(&dock, window, cx) else {
 5091                return;
 5092            };
 5093            match dock.position() {
 5094                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 5095                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 5096                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 5097            }
 5098        } else {
 5099            self.center
 5100                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 5101        }
 5102        cx.notify();
 5103    }
 5104
 5105    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 5106        self.center.reset_pane_sizes(cx);
 5107        cx.notify();
 5108    }
 5109
 5110    fn handle_pane_focused(
 5111        &mut self,
 5112        pane: Entity<Pane>,
 5113        window: &mut Window,
 5114        cx: &mut Context<Self>,
 5115    ) {
 5116        // This is explicitly hoisted out of the following check for pane identity as
 5117        // terminal panel panes are not registered as a center panes.
 5118        self.status_bar.update(cx, |status_bar, cx| {
 5119            status_bar.set_active_pane(&pane, window, cx);
 5120        });
 5121        if self.active_pane != pane {
 5122            self.set_active_pane(&pane, window, cx);
 5123        }
 5124
 5125        if self.last_active_center_pane.is_none() {
 5126            self.last_active_center_pane = Some(pane.downgrade());
 5127        }
 5128
 5129        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 5130        // This prevents the dock from closing when focus events fire during window activation.
 5131        // We also preserve any dock whose active panel itself has focus — this covers
 5132        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 5133        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 5134            let dock_read = dock.read(cx);
 5135            if let Some(panel) = dock_read.active_panel() {
 5136                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 5137                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 5138                {
 5139                    return Some(dock_read.position());
 5140                }
 5141            }
 5142            None
 5143        });
 5144
 5145        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 5146        if pane.read(cx).is_zoomed() {
 5147            self.zoomed = Some(pane.downgrade().into());
 5148        } else {
 5149            self.zoomed = None;
 5150        }
 5151        self.zoomed_position = None;
 5152        cx.emit(Event::ZoomChanged);
 5153        self.update_active_view_for_followers(window, cx);
 5154        pane.update(cx, |pane, _| {
 5155            pane.track_alternate_file_items();
 5156        });
 5157
 5158        cx.notify();
 5159    }
 5160
 5161    fn set_active_pane(
 5162        &mut self,
 5163        pane: &Entity<Pane>,
 5164        window: &mut Window,
 5165        cx: &mut Context<Self>,
 5166    ) {
 5167        self.active_pane = pane.clone();
 5168        self.active_item_path_changed(true, window, cx);
 5169        self.last_active_center_pane = Some(pane.downgrade());
 5170    }
 5171
 5172    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5173        self.update_active_view_for_followers(window, cx);
 5174    }
 5175
 5176    fn handle_pane_event(
 5177        &mut self,
 5178        pane: &Entity<Pane>,
 5179        event: &pane::Event,
 5180        window: &mut Window,
 5181        cx: &mut Context<Self>,
 5182    ) {
 5183        let mut serialize_workspace = true;
 5184        match event {
 5185            pane::Event::AddItem { item } => {
 5186                item.added_to_pane(self, pane.clone(), window, cx);
 5187                cx.emit(Event::ItemAdded {
 5188                    item: item.boxed_clone(),
 5189                });
 5190            }
 5191            pane::Event::Split { direction, mode } => {
 5192                match mode {
 5193                    SplitMode::ClonePane => {
 5194                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5195                            .detach();
 5196                    }
 5197                    SplitMode::EmptyPane => {
 5198                        self.split_pane(pane.clone(), *direction, window, cx);
 5199                    }
 5200                    SplitMode::MovePane => {
 5201                        self.split_and_move(pane.clone(), *direction, window, cx);
 5202                    }
 5203                };
 5204            }
 5205            pane::Event::JoinIntoNext => {
 5206                self.join_pane_into_next(pane.clone(), window, cx);
 5207            }
 5208            pane::Event::JoinAll => {
 5209                self.join_all_panes(window, cx);
 5210            }
 5211            pane::Event::Remove { focus_on_pane } => {
 5212                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5213            }
 5214            pane::Event::ActivateItem {
 5215                local,
 5216                focus_changed,
 5217            } => {
 5218                window.invalidate_character_coordinates();
 5219
 5220                pane.update(cx, |pane, _| {
 5221                    pane.track_alternate_file_items();
 5222                });
 5223                if *local {
 5224                    self.unfollow_in_pane(pane, window, cx);
 5225                }
 5226                serialize_workspace = *focus_changed || pane != self.active_pane();
 5227                if pane == self.active_pane() {
 5228                    self.active_item_path_changed(*focus_changed, window, cx);
 5229                    self.update_active_view_for_followers(window, cx);
 5230                } else if *local {
 5231                    self.set_active_pane(pane, window, cx);
 5232                }
 5233            }
 5234            pane::Event::UserSavedItem { item, save_intent } => {
 5235                cx.emit(Event::UserSavedItem {
 5236                    pane: pane.downgrade(),
 5237                    item: item.boxed_clone(),
 5238                    save_intent: *save_intent,
 5239                });
 5240                serialize_workspace = false;
 5241            }
 5242            pane::Event::ChangeItemTitle => {
 5243                if *pane == self.active_pane {
 5244                    self.active_item_path_changed(false, window, cx);
 5245                }
 5246                serialize_workspace = false;
 5247            }
 5248            pane::Event::RemovedItem { item } => {
 5249                cx.emit(Event::ActiveItemChanged);
 5250                self.update_window_edited(window, cx);
 5251                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5252                    && entry.get().entity_id() == pane.entity_id()
 5253                {
 5254                    entry.remove();
 5255                }
 5256                cx.emit(Event::ItemRemoved {
 5257                    item_id: item.item_id(),
 5258                });
 5259            }
 5260            pane::Event::Focus => {
 5261                window.invalidate_character_coordinates();
 5262                self.handle_pane_focused(pane.clone(), window, cx);
 5263            }
 5264            pane::Event::ZoomIn => {
 5265                if *pane == self.active_pane {
 5266                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5267                    if pane.read(cx).has_focus(window, cx) {
 5268                        self.zoomed = Some(pane.downgrade().into());
 5269                        self.zoomed_position = None;
 5270                        cx.emit(Event::ZoomChanged);
 5271                    }
 5272                    cx.notify();
 5273                }
 5274            }
 5275            pane::Event::ZoomOut => {
 5276                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5277                if self.zoomed_position.is_none() {
 5278                    self.zoomed = None;
 5279                    cx.emit(Event::ZoomChanged);
 5280                }
 5281                cx.notify();
 5282            }
 5283            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5284        }
 5285
 5286        if serialize_workspace {
 5287            self.serialize_workspace(window, cx);
 5288        }
 5289    }
 5290
 5291    pub fn unfollow_in_pane(
 5292        &mut self,
 5293        pane: &Entity<Pane>,
 5294        window: &mut Window,
 5295        cx: &mut Context<Workspace>,
 5296    ) -> Option<CollaboratorId> {
 5297        let leader_id = self.leader_for_pane(pane)?;
 5298        self.unfollow(leader_id, window, cx);
 5299        Some(leader_id)
 5300    }
 5301
 5302    pub fn split_pane(
 5303        &mut self,
 5304        pane_to_split: Entity<Pane>,
 5305        split_direction: SplitDirection,
 5306        window: &mut Window,
 5307        cx: &mut Context<Self>,
 5308    ) -> Entity<Pane> {
 5309        let new_pane = self.add_pane(window, cx);
 5310        self.center
 5311            .split(&pane_to_split, &new_pane, split_direction, cx);
 5312        cx.notify();
 5313        new_pane
 5314    }
 5315
 5316    pub fn split_and_move(
 5317        &mut self,
 5318        pane: Entity<Pane>,
 5319        direction: SplitDirection,
 5320        window: &mut Window,
 5321        cx: &mut Context<Self>,
 5322    ) {
 5323        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5324            return;
 5325        };
 5326        let new_pane = self.add_pane(window, cx);
 5327        new_pane.update(cx, |pane, cx| {
 5328            pane.add_item(item, true, true, None, window, cx)
 5329        });
 5330        self.center.split(&pane, &new_pane, direction, cx);
 5331        cx.notify();
 5332    }
 5333
 5334    pub fn split_and_clone(
 5335        &mut self,
 5336        pane: Entity<Pane>,
 5337        direction: SplitDirection,
 5338        window: &mut Window,
 5339        cx: &mut Context<Self>,
 5340    ) -> Task<Option<Entity<Pane>>> {
 5341        let Some(item) = pane.read(cx).active_item() else {
 5342            return Task::ready(None);
 5343        };
 5344        if !item.can_split(cx) {
 5345            return Task::ready(None);
 5346        }
 5347        let task = item.clone_on_split(self.database_id(), window, cx);
 5348        cx.spawn_in(window, async move |this, cx| {
 5349            if let Some(clone) = task.await {
 5350                this.update_in(cx, |this, window, cx| {
 5351                    let new_pane = this.add_pane(window, cx);
 5352                    let nav_history = pane.read(cx).fork_nav_history();
 5353                    new_pane.update(cx, |pane, cx| {
 5354                        pane.set_nav_history(nav_history, cx);
 5355                        pane.add_item(clone, true, true, None, window, cx)
 5356                    });
 5357                    this.center.split(&pane, &new_pane, direction, cx);
 5358                    cx.notify();
 5359                    new_pane
 5360                })
 5361                .ok()
 5362            } else {
 5363                None
 5364            }
 5365        })
 5366    }
 5367
 5368    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5369        let active_item = self.active_pane.read(cx).active_item();
 5370        for pane in &self.panes {
 5371            join_pane_into_active(&self.active_pane, pane, window, cx);
 5372        }
 5373        if let Some(active_item) = active_item {
 5374            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5375        }
 5376        cx.notify();
 5377    }
 5378
 5379    pub fn join_pane_into_next(
 5380        &mut self,
 5381        pane: Entity<Pane>,
 5382        window: &mut Window,
 5383        cx: &mut Context<Self>,
 5384    ) {
 5385        let next_pane = self
 5386            .find_pane_in_direction(SplitDirection::Right, cx)
 5387            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5388            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5389            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5390        let Some(next_pane) = next_pane else {
 5391            return;
 5392        };
 5393        move_all_items(&pane, &next_pane, window, cx);
 5394        cx.notify();
 5395    }
 5396
 5397    fn remove_pane(
 5398        &mut self,
 5399        pane: Entity<Pane>,
 5400        focus_on: Option<Entity<Pane>>,
 5401        window: &mut Window,
 5402        cx: &mut Context<Self>,
 5403    ) {
 5404        if self.center.remove(&pane, cx).unwrap() {
 5405            self.force_remove_pane(&pane, &focus_on, window, cx);
 5406            self.unfollow_in_pane(&pane, window, cx);
 5407            self.last_leaders_by_pane.remove(&pane.downgrade());
 5408            for removed_item in pane.read(cx).items() {
 5409                self.panes_by_item.remove(&removed_item.item_id());
 5410            }
 5411
 5412            cx.notify();
 5413        } else {
 5414            self.active_item_path_changed(true, window, cx);
 5415        }
 5416        cx.emit(Event::PaneRemoved);
 5417    }
 5418
 5419    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5420        &mut self.panes
 5421    }
 5422
 5423    pub fn panes(&self) -> &[Entity<Pane>] {
 5424        &self.panes
 5425    }
 5426
 5427    pub fn active_pane(&self) -> &Entity<Pane> {
 5428        &self.active_pane
 5429    }
 5430
 5431    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5432        for dock in self.all_docks() {
 5433            if dock.focus_handle(cx).contains_focused(window, cx)
 5434                && let Some(pane) = dock
 5435                    .read(cx)
 5436                    .active_panel()
 5437                    .and_then(|panel| panel.pane(cx))
 5438            {
 5439                return pane;
 5440            }
 5441        }
 5442        self.active_pane().clone()
 5443    }
 5444
 5445    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5446        self.find_pane_in_direction(SplitDirection::Right, cx)
 5447            .unwrap_or_else(|| {
 5448                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5449            })
 5450    }
 5451
 5452    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5453        self.pane_for_item_id(handle.item_id())
 5454    }
 5455
 5456    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5457        let weak_pane = self.panes_by_item.get(&item_id)?;
 5458        weak_pane.upgrade()
 5459    }
 5460
 5461    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5462        self.panes
 5463            .iter()
 5464            .find(|pane| pane.entity_id() == entity_id)
 5465            .cloned()
 5466    }
 5467
 5468    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5469        self.follower_states.retain(|leader_id, state| {
 5470            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5471                for item in state.items_by_leader_view_id.values() {
 5472                    item.view.set_leader_id(None, window, cx);
 5473                }
 5474                false
 5475            } else {
 5476                true
 5477            }
 5478        });
 5479        cx.notify();
 5480    }
 5481
 5482    pub fn start_following(
 5483        &mut self,
 5484        leader_id: impl Into<CollaboratorId>,
 5485        window: &mut Window,
 5486        cx: &mut Context<Self>,
 5487    ) -> Option<Task<Result<()>>> {
 5488        let leader_id = leader_id.into();
 5489        let pane = self.active_pane().clone();
 5490
 5491        self.last_leaders_by_pane
 5492            .insert(pane.downgrade(), leader_id);
 5493        self.unfollow(leader_id, window, cx);
 5494        self.unfollow_in_pane(&pane, window, cx);
 5495        self.follower_states.insert(
 5496            leader_id,
 5497            FollowerState {
 5498                center_pane: pane.clone(),
 5499                dock_pane: None,
 5500                active_view_id: None,
 5501                items_by_leader_view_id: Default::default(),
 5502            },
 5503        );
 5504        cx.notify();
 5505
 5506        match leader_id {
 5507            CollaboratorId::PeerId(leader_peer_id) => {
 5508                let room_id = self.active_call()?.room_id(cx)?;
 5509                let project_id = self.project.read(cx).remote_id();
 5510                let request = self.app_state.client.request(proto::Follow {
 5511                    room_id,
 5512                    project_id,
 5513                    leader_id: Some(leader_peer_id),
 5514                });
 5515
 5516                Some(cx.spawn_in(window, async move |this, cx| {
 5517                    let response = request.await?;
 5518                    this.update(cx, |this, _| {
 5519                        let state = this
 5520                            .follower_states
 5521                            .get_mut(&leader_id)
 5522                            .context("following interrupted")?;
 5523                        state.active_view_id = response
 5524                            .active_view
 5525                            .as_ref()
 5526                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5527                        anyhow::Ok(())
 5528                    })??;
 5529                    if let Some(view) = response.active_view {
 5530                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5531                    }
 5532                    this.update_in(cx, |this, window, cx| {
 5533                        this.leader_updated(leader_id, window, cx)
 5534                    })?;
 5535                    Ok(())
 5536                }))
 5537            }
 5538            CollaboratorId::Agent => {
 5539                self.leader_updated(leader_id, window, cx)?;
 5540                Some(Task::ready(Ok(())))
 5541            }
 5542        }
 5543    }
 5544
 5545    pub fn follow_next_collaborator(
 5546        &mut self,
 5547        _: &FollowNextCollaborator,
 5548        window: &mut Window,
 5549        cx: &mut Context<Self>,
 5550    ) {
 5551        let collaborators = self.project.read(cx).collaborators();
 5552        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5553            let mut collaborators = collaborators.keys().copied();
 5554            for peer_id in collaborators.by_ref() {
 5555                if CollaboratorId::PeerId(peer_id) == leader_id {
 5556                    break;
 5557                }
 5558            }
 5559            collaborators.next().map(CollaboratorId::PeerId)
 5560        } else if let Some(last_leader_id) =
 5561            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5562        {
 5563            match last_leader_id {
 5564                CollaboratorId::PeerId(peer_id) => {
 5565                    if collaborators.contains_key(peer_id) {
 5566                        Some(*last_leader_id)
 5567                    } else {
 5568                        None
 5569                    }
 5570                }
 5571                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5572            }
 5573        } else {
 5574            None
 5575        };
 5576
 5577        let pane = self.active_pane.clone();
 5578        let Some(leader_id) = next_leader_id.or_else(|| {
 5579            Some(CollaboratorId::PeerId(
 5580                collaborators.keys().copied().next()?,
 5581            ))
 5582        }) else {
 5583            return;
 5584        };
 5585        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5586            return;
 5587        }
 5588        if let Some(task) = self.start_following(leader_id, window, cx) {
 5589            task.detach_and_log_err(cx)
 5590        }
 5591    }
 5592
 5593    pub fn follow(
 5594        &mut self,
 5595        leader_id: impl Into<CollaboratorId>,
 5596        window: &mut Window,
 5597        cx: &mut Context<Self>,
 5598    ) {
 5599        let leader_id = leader_id.into();
 5600
 5601        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5602            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5603                return;
 5604            };
 5605            let Some(remote_participant) =
 5606                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5607            else {
 5608                return;
 5609            };
 5610
 5611            let project = self.project.read(cx);
 5612
 5613            let other_project_id = match remote_participant.location {
 5614                ParticipantLocation::External => None,
 5615                ParticipantLocation::UnsharedProject => None,
 5616                ParticipantLocation::SharedProject { project_id } => {
 5617                    if Some(project_id) == project.remote_id() {
 5618                        None
 5619                    } else {
 5620                        Some(project_id)
 5621                    }
 5622                }
 5623            };
 5624
 5625            // if they are active in another project, follow there.
 5626            if let Some(project_id) = other_project_id {
 5627                let app_state = self.app_state.clone();
 5628                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5629                    .detach_and_prompt_err("Failed to join project", window, cx, |error, _, _| {
 5630                        Some(format!("{error:#}"))
 5631                    });
 5632            }
 5633        }
 5634
 5635        // if you're already following, find the right pane and focus it.
 5636        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5637            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5638
 5639            return;
 5640        }
 5641
 5642        // Otherwise, follow.
 5643        if let Some(task) = self.start_following(leader_id, window, cx) {
 5644            task.detach_and_log_err(cx)
 5645        }
 5646    }
 5647
 5648    pub fn unfollow(
 5649        &mut self,
 5650        leader_id: impl Into<CollaboratorId>,
 5651        window: &mut Window,
 5652        cx: &mut Context<Self>,
 5653    ) -> Option<()> {
 5654        cx.notify();
 5655
 5656        let leader_id = leader_id.into();
 5657        let state = self.follower_states.remove(&leader_id)?;
 5658        for (_, item) in state.items_by_leader_view_id {
 5659            item.view.set_leader_id(None, window, cx);
 5660        }
 5661
 5662        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5663            let project_id = self.project.read(cx).remote_id();
 5664            let room_id = self.active_call()?.room_id(cx)?;
 5665            self.app_state
 5666                .client
 5667                .send(proto::Unfollow {
 5668                    room_id,
 5669                    project_id,
 5670                    leader_id: Some(leader_peer_id),
 5671                })
 5672                .log_err();
 5673        }
 5674
 5675        Some(())
 5676    }
 5677
 5678    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5679        self.follower_states.contains_key(&id.into())
 5680    }
 5681
 5682    fn active_item_path_changed(
 5683        &mut self,
 5684        focus_changed: bool,
 5685        window: &mut Window,
 5686        cx: &mut Context<Self>,
 5687    ) {
 5688        cx.emit(Event::ActiveItemChanged);
 5689        let active_entry = self.active_project_path(cx);
 5690        self.project.update(cx, |project, cx| {
 5691            project.set_active_path(active_entry.clone(), cx)
 5692        });
 5693
 5694        if focus_changed && let Some(project_path) = &active_entry {
 5695            let git_store_entity = self.project.read(cx).git_store().clone();
 5696            git_store_entity.update(cx, |git_store, cx| {
 5697                git_store.set_active_repo_for_path(project_path, cx);
 5698            });
 5699        }
 5700
 5701        self.update_window_title(window, cx);
 5702    }
 5703
 5704    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5705        let project = self.project().read(cx);
 5706        let mut title = String::new();
 5707
 5708        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5709            let name = {
 5710                let settings_location = SettingsLocation {
 5711                    worktree_id: worktree.read(cx).id(),
 5712                    path: RelPath::empty(),
 5713                };
 5714
 5715                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5716                match &settings.project_name {
 5717                    Some(name) => name.as_str(),
 5718                    None => worktree.read(cx).root_name_str(),
 5719                }
 5720            };
 5721            if i > 0 {
 5722                title.push_str(", ");
 5723            }
 5724            title.push_str(name);
 5725        }
 5726
 5727        if title.is_empty() {
 5728            title = "empty project".to_string();
 5729        }
 5730
 5731        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5732            let filename = path.path.file_name().or_else(|| {
 5733                Some(
 5734                    project
 5735                        .worktree_for_id(path.worktree_id, cx)?
 5736                        .read(cx)
 5737                        .root_name_str(),
 5738                )
 5739            });
 5740
 5741            if let Some(filename) = filename {
 5742                title.push_str("");
 5743                title.push_str(filename.as_ref());
 5744            }
 5745        }
 5746
 5747        if project.is_via_collab() {
 5748            title.push_str("");
 5749        } else if project.is_shared() {
 5750            title.push_str("");
 5751        }
 5752
 5753        if let Some(last_title) = self.last_window_title.as_ref()
 5754            && &title == last_title
 5755        {
 5756            return;
 5757        }
 5758        window.set_window_title(&title);
 5759        SystemWindowTabController::update_tab_title(
 5760            cx,
 5761            window.window_handle().window_id(),
 5762            SharedString::from(&title),
 5763        );
 5764        self.last_window_title = Some(title);
 5765    }
 5766
 5767    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5768        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5769        if is_edited != self.window_edited {
 5770            self.window_edited = is_edited;
 5771            window.set_window_edited(self.window_edited)
 5772        }
 5773    }
 5774
 5775    fn update_item_dirty_state(
 5776        &mut self,
 5777        item: &dyn ItemHandle,
 5778        window: &mut Window,
 5779        cx: &mut App,
 5780    ) {
 5781        let is_dirty = item.is_dirty(cx);
 5782        let item_id = item.item_id();
 5783        let was_dirty = self.dirty_items.contains_key(&item_id);
 5784        if is_dirty == was_dirty {
 5785            return;
 5786        }
 5787        if was_dirty {
 5788            self.dirty_items.remove(&item_id);
 5789            self.update_window_edited(window, cx);
 5790            return;
 5791        }
 5792
 5793        let workspace = self.weak_handle();
 5794        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5795            return;
 5796        };
 5797        let on_release_callback = Box::new(move |cx: &mut App| {
 5798            window_handle
 5799                .update(cx, |_, window, cx| {
 5800                    workspace
 5801                        .update(cx, |workspace, cx| {
 5802                            workspace.dirty_items.remove(&item_id);
 5803                            workspace.update_window_edited(window, cx)
 5804                        })
 5805                        .ok();
 5806                })
 5807                .ok();
 5808        });
 5809
 5810        let s = item.on_release(cx, on_release_callback);
 5811        self.dirty_items.insert(item_id, s);
 5812        self.update_window_edited(window, cx);
 5813    }
 5814
 5815    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5816        if self.notifications.is_empty() {
 5817            None
 5818        } else {
 5819            Some(
 5820                div()
 5821                    .absolute()
 5822                    .right_3()
 5823                    .bottom_3()
 5824                    .w_112()
 5825                    .h_full()
 5826                    .flex()
 5827                    .flex_col()
 5828                    .justify_end()
 5829                    .gap_2()
 5830                    .children(
 5831                        self.notifications
 5832                            .iter()
 5833                            .map(|(_, notification)| notification.clone().into_any()),
 5834                    ),
 5835            )
 5836        }
 5837    }
 5838
 5839    // RPC handlers
 5840
 5841    fn active_view_for_follower(
 5842        &self,
 5843        follower_project_id: Option<u64>,
 5844        window: &mut Window,
 5845        cx: &mut Context<Self>,
 5846    ) -> Option<proto::View> {
 5847        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5848        let item = item?;
 5849        let leader_id = self
 5850            .pane_for(&*item)
 5851            .and_then(|pane| self.leader_for_pane(&pane));
 5852        let leader_peer_id = match leader_id {
 5853            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5854            Some(CollaboratorId::Agent) | None => None,
 5855        };
 5856
 5857        let item_handle = item.to_followable_item_handle(cx)?;
 5858        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5859        let variant = item_handle.to_state_proto(window, cx)?;
 5860
 5861        if item_handle.is_project_item(window, cx)
 5862            && (follower_project_id.is_none()
 5863                || follower_project_id != self.project.read(cx).remote_id())
 5864        {
 5865            return None;
 5866        }
 5867
 5868        Some(proto::View {
 5869            id: id.to_proto(),
 5870            leader_id: leader_peer_id,
 5871            variant: Some(variant),
 5872            panel_id: panel_id.map(|id| id as i32),
 5873        })
 5874    }
 5875
 5876    fn handle_follow(
 5877        &mut self,
 5878        follower_project_id: Option<u64>,
 5879        window: &mut Window,
 5880        cx: &mut Context<Self>,
 5881    ) -> proto::FollowResponse {
 5882        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5883
 5884        cx.notify();
 5885        proto::FollowResponse {
 5886            views: active_view.iter().cloned().collect(),
 5887            active_view,
 5888        }
 5889    }
 5890
 5891    fn handle_update_followers(
 5892        &mut self,
 5893        leader_id: PeerId,
 5894        message: proto::UpdateFollowers,
 5895        _window: &mut Window,
 5896        _cx: &mut Context<Self>,
 5897    ) {
 5898        self.leader_updates_tx
 5899            .unbounded_send((leader_id, message))
 5900            .ok();
 5901    }
 5902
 5903    async fn process_leader_update(
 5904        this: &WeakEntity<Self>,
 5905        leader_id: PeerId,
 5906        update: proto::UpdateFollowers,
 5907        cx: &mut AsyncWindowContext,
 5908    ) -> Result<()> {
 5909        match update.variant.context("invalid update")? {
 5910            proto::update_followers::Variant::CreateView(view) => {
 5911                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5912                let should_add_view = this.update(cx, |this, _| {
 5913                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5914                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5915                    } else {
 5916                        anyhow::Ok(false)
 5917                    }
 5918                })??;
 5919
 5920                if should_add_view {
 5921                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5922                }
 5923            }
 5924            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5925                let should_add_view = this.update(cx, |this, _| {
 5926                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5927                        state.active_view_id = update_active_view
 5928                            .view
 5929                            .as_ref()
 5930                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5931
 5932                        if state.active_view_id.is_some_and(|view_id| {
 5933                            !state.items_by_leader_view_id.contains_key(&view_id)
 5934                        }) {
 5935                            anyhow::Ok(true)
 5936                        } else {
 5937                            anyhow::Ok(false)
 5938                        }
 5939                    } else {
 5940                        anyhow::Ok(false)
 5941                    }
 5942                })??;
 5943
 5944                if should_add_view && let Some(view) = update_active_view.view {
 5945                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5946                }
 5947            }
 5948            proto::update_followers::Variant::UpdateView(update_view) => {
 5949                let variant = update_view.variant.context("missing update view variant")?;
 5950                let id = update_view.id.context("missing update view id")?;
 5951                let mut tasks = Vec::new();
 5952                this.update_in(cx, |this, window, cx| {
 5953                    let project = this.project.clone();
 5954                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5955                        let view_id = ViewId::from_proto(id.clone())?;
 5956                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5957                            tasks.push(item.view.apply_update_proto(
 5958                                &project,
 5959                                variant.clone(),
 5960                                window,
 5961                                cx,
 5962                            ));
 5963                        }
 5964                    }
 5965                    anyhow::Ok(())
 5966                })??;
 5967                try_join_all(tasks).await.log_err();
 5968            }
 5969        }
 5970        this.update_in(cx, |this, window, cx| {
 5971            this.leader_updated(leader_id, window, cx)
 5972        })?;
 5973        Ok(())
 5974    }
 5975
 5976    async fn add_view_from_leader(
 5977        this: WeakEntity<Self>,
 5978        leader_id: PeerId,
 5979        view: &proto::View,
 5980        cx: &mut AsyncWindowContext,
 5981    ) -> Result<()> {
 5982        let this = this.upgrade().context("workspace dropped")?;
 5983
 5984        let Some(id) = view.id.clone() else {
 5985            anyhow::bail!("no id for view");
 5986        };
 5987        let id = ViewId::from_proto(id)?;
 5988        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5989
 5990        let pane = this.update(cx, |this, _cx| {
 5991            let state = this
 5992                .follower_states
 5993                .get(&leader_id.into())
 5994                .context("stopped following")?;
 5995            anyhow::Ok(state.pane().clone())
 5996        })?;
 5997        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5998            let client = this.read(cx).client().clone();
 5999            pane.items().find_map(|item| {
 6000                let item = item.to_followable_item_handle(cx)?;
 6001                if item.remote_id(&client, window, cx) == Some(id) {
 6002                    Some(item)
 6003                } else {
 6004                    None
 6005                }
 6006            })
 6007        })?;
 6008        let item = if let Some(existing_item) = existing_item {
 6009            existing_item
 6010        } else {
 6011            let variant = view.variant.clone();
 6012            anyhow::ensure!(variant.is_some(), "missing view variant");
 6013
 6014            let task = cx.update(|window, cx| {
 6015                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 6016            })?;
 6017
 6018            let Some(task) = task else {
 6019                anyhow::bail!(
 6020                    "failed to construct view from leader (maybe from a different version of zed?)"
 6021                );
 6022            };
 6023
 6024            let mut new_item = task.await?;
 6025            pane.update_in(cx, |pane, window, cx| {
 6026                let mut item_to_remove = None;
 6027                for (ix, item) in pane.items().enumerate() {
 6028                    if let Some(item) = item.to_followable_item_handle(cx) {
 6029                        match new_item.dedup(item.as_ref(), window, cx) {
 6030                            Some(item::Dedup::KeepExisting) => {
 6031                                new_item =
 6032                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 6033                                break;
 6034                            }
 6035                            Some(item::Dedup::ReplaceExisting) => {
 6036                                item_to_remove = Some((ix, item.item_id()));
 6037                                break;
 6038                            }
 6039                            None => {}
 6040                        }
 6041                    }
 6042                }
 6043
 6044                if let Some((ix, id)) = item_to_remove {
 6045                    pane.remove_item(id, false, false, window, cx);
 6046                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 6047                }
 6048            })?;
 6049
 6050            new_item
 6051        };
 6052
 6053        this.update_in(cx, |this, window, cx| {
 6054            let state = this.follower_states.get_mut(&leader_id.into())?;
 6055            item.set_leader_id(Some(leader_id.into()), window, cx);
 6056            state.items_by_leader_view_id.insert(
 6057                id,
 6058                FollowerView {
 6059                    view: item,
 6060                    location: panel_id,
 6061                },
 6062            );
 6063
 6064            Some(())
 6065        })
 6066        .context("no follower state")?;
 6067
 6068        Ok(())
 6069    }
 6070
 6071    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6072        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 6073            return;
 6074        };
 6075
 6076        if let Some(agent_location) = self.project.read(cx).agent_location() {
 6077            let buffer_entity_id = agent_location.buffer.entity_id();
 6078            let view_id = ViewId {
 6079                creator: CollaboratorId::Agent,
 6080                id: buffer_entity_id.as_u64(),
 6081            };
 6082            follower_state.active_view_id = Some(view_id);
 6083
 6084            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 6085                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 6086                hash_map::Entry::Vacant(entry) => {
 6087                    let existing_view =
 6088                        follower_state
 6089                            .center_pane
 6090                            .read(cx)
 6091                            .items()
 6092                            .find_map(|item| {
 6093                                let item = item.to_followable_item_handle(cx)?;
 6094                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 6095                                    && item.project_item_model_ids(cx).as_slice()
 6096                                        == [buffer_entity_id]
 6097                                {
 6098                                    Some(item)
 6099                                } else {
 6100                                    None
 6101                                }
 6102                            });
 6103                    let view = existing_view.or_else(|| {
 6104                        agent_location.buffer.upgrade().and_then(|buffer| {
 6105                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 6106                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 6107                            })?
 6108                            .to_followable_item_handle(cx)
 6109                        })
 6110                    });
 6111
 6112                    view.map(|view| {
 6113                        entry.insert(FollowerView {
 6114                            view,
 6115                            location: None,
 6116                        })
 6117                    })
 6118                }
 6119            };
 6120
 6121            if let Some(item) = item {
 6122                item.view
 6123                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 6124                item.view
 6125                    .update_agent_location(agent_location.position, window, cx);
 6126            }
 6127        } else {
 6128            follower_state.active_view_id = None;
 6129        }
 6130
 6131        self.leader_updated(CollaboratorId::Agent, window, cx);
 6132    }
 6133
 6134    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 6135        let mut is_project_item = true;
 6136        let mut update = proto::UpdateActiveView::default();
 6137        if window.is_window_active() {
 6138            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 6139
 6140            if let Some(item) = active_item
 6141                && item.item_focus_handle(cx).contains_focused(window, cx)
 6142            {
 6143                let leader_id = self
 6144                    .pane_for(&*item)
 6145                    .and_then(|pane| self.leader_for_pane(&pane));
 6146                let leader_peer_id = match leader_id {
 6147                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 6148                    Some(CollaboratorId::Agent) | None => None,
 6149                };
 6150
 6151                if let Some(item) = item.to_followable_item_handle(cx) {
 6152                    let id = item
 6153                        .remote_id(&self.app_state.client, window, cx)
 6154                        .map(|id| id.to_proto());
 6155
 6156                    if let Some(id) = id
 6157                        && let Some(variant) = item.to_state_proto(window, cx)
 6158                    {
 6159                        let view = Some(proto::View {
 6160                            id,
 6161                            leader_id: leader_peer_id,
 6162                            variant: Some(variant),
 6163                            panel_id: panel_id.map(|id| id as i32),
 6164                        });
 6165
 6166                        is_project_item = item.is_project_item(window, cx);
 6167                        update = proto::UpdateActiveView { view };
 6168                    };
 6169                }
 6170            }
 6171        }
 6172
 6173        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 6174        if active_view_id != self.last_active_view_id.as_ref() {
 6175            self.last_active_view_id = active_view_id.cloned();
 6176            self.update_followers(
 6177                is_project_item,
 6178                proto::update_followers::Variant::UpdateActiveView(update),
 6179                window,
 6180                cx,
 6181            );
 6182        }
 6183    }
 6184
 6185    fn active_item_for_followers(
 6186        &self,
 6187        window: &mut Window,
 6188        cx: &mut App,
 6189    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 6190        let mut active_item = None;
 6191        let mut panel_id = None;
 6192        for dock in self.all_docks() {
 6193            if dock.focus_handle(cx).contains_focused(window, cx)
 6194                && let Some(panel) = dock.read(cx).active_panel()
 6195                && let Some(pane) = panel.pane(cx)
 6196                && let Some(item) = pane.read(cx).active_item()
 6197            {
 6198                active_item = Some(item);
 6199                panel_id = panel.remote_id();
 6200                break;
 6201            }
 6202        }
 6203
 6204        if active_item.is_none() {
 6205            active_item = self.active_pane().read(cx).active_item();
 6206        }
 6207        (active_item, panel_id)
 6208    }
 6209
 6210    fn update_followers(
 6211        &self,
 6212        project_only: bool,
 6213        update: proto::update_followers::Variant,
 6214        _: &mut Window,
 6215        cx: &mut App,
 6216    ) -> Option<()> {
 6217        // If this update only applies to for followers in the current project,
 6218        // then skip it unless this project is shared. If it applies to all
 6219        // followers, regardless of project, then set `project_id` to none,
 6220        // indicating that it goes to all followers.
 6221        let project_id = if project_only {
 6222            Some(self.project.read(cx).remote_id()?)
 6223        } else {
 6224            None
 6225        };
 6226        self.app_state().workspace_store.update(cx, |store, cx| {
 6227            store.update_followers(project_id, update, cx)
 6228        })
 6229    }
 6230
 6231    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6232        self.follower_states.iter().find_map(|(leader_id, state)| {
 6233            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6234                Some(*leader_id)
 6235            } else {
 6236                None
 6237            }
 6238        })
 6239    }
 6240
 6241    fn leader_updated(
 6242        &mut self,
 6243        leader_id: impl Into<CollaboratorId>,
 6244        window: &mut Window,
 6245        cx: &mut Context<Self>,
 6246    ) -> Option<Box<dyn ItemHandle>> {
 6247        cx.notify();
 6248
 6249        let leader_id = leader_id.into();
 6250        let (panel_id, item) = match leader_id {
 6251            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6252            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6253        };
 6254
 6255        let state = self.follower_states.get(&leader_id)?;
 6256        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6257        let pane;
 6258        if let Some(panel_id) = panel_id {
 6259            pane = self
 6260                .activate_panel_for_proto_id(panel_id, window, cx)?
 6261                .pane(cx)?;
 6262            let state = self.follower_states.get_mut(&leader_id)?;
 6263            state.dock_pane = Some(pane.clone());
 6264        } else {
 6265            pane = state.center_pane.clone();
 6266            let state = self.follower_states.get_mut(&leader_id)?;
 6267            if let Some(dock_pane) = state.dock_pane.take() {
 6268                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6269            }
 6270        }
 6271
 6272        pane.update(cx, |pane, cx| {
 6273            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6274            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6275                pane.activate_item(index, false, false, window, cx);
 6276            } else {
 6277                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6278            }
 6279
 6280            if focus_active_item {
 6281                pane.focus_active_item(window, cx)
 6282            }
 6283        });
 6284
 6285        Some(item)
 6286    }
 6287
 6288    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6289        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6290        let active_view_id = state.active_view_id?;
 6291        Some(
 6292            state
 6293                .items_by_leader_view_id
 6294                .get(&active_view_id)?
 6295                .view
 6296                .boxed_clone(),
 6297        )
 6298    }
 6299
 6300    fn active_item_for_peer(
 6301        &self,
 6302        peer_id: PeerId,
 6303        window: &mut Window,
 6304        cx: &mut Context<Self>,
 6305    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6306        let call = self.active_call()?;
 6307        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6308        let leader_in_this_app;
 6309        let leader_in_this_project;
 6310        match participant.location {
 6311            ParticipantLocation::SharedProject { project_id } => {
 6312                leader_in_this_app = true;
 6313                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6314            }
 6315            ParticipantLocation::UnsharedProject => {
 6316                leader_in_this_app = true;
 6317                leader_in_this_project = false;
 6318            }
 6319            ParticipantLocation::External => {
 6320                leader_in_this_app = false;
 6321                leader_in_this_project = false;
 6322            }
 6323        };
 6324        let state = self.follower_states.get(&peer_id.into())?;
 6325        let mut item_to_activate = None;
 6326        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6327            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6328                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6329            {
 6330                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6331            }
 6332        } else if let Some(shared_screen) =
 6333            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6334        {
 6335            item_to_activate = Some((None, Box::new(shared_screen)));
 6336        }
 6337        item_to_activate
 6338    }
 6339
 6340    fn shared_screen_for_peer(
 6341        &self,
 6342        peer_id: PeerId,
 6343        pane: &Entity<Pane>,
 6344        window: &mut Window,
 6345        cx: &mut App,
 6346    ) -> Option<Entity<SharedScreen>> {
 6347        self.active_call()?
 6348            .create_shared_screen(peer_id, pane, window, cx)
 6349    }
 6350
 6351    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6352        if window.is_window_active() {
 6353            self.update_active_view_for_followers(window, cx);
 6354
 6355            if let Some(database_id) = self.database_id {
 6356                let db = WorkspaceDb::global(cx);
 6357                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6358                    .detach();
 6359            }
 6360        } else {
 6361            for pane in &self.panes {
 6362                pane.update(cx, |pane, cx| {
 6363                    if let Some(item) = pane.active_item() {
 6364                        item.workspace_deactivated(window, cx);
 6365                    }
 6366                    for item in pane.items() {
 6367                        if matches!(
 6368                            item.workspace_settings(cx).autosave,
 6369                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6370                        ) {
 6371                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6372                                .detach_and_log_err(cx);
 6373                        }
 6374                    }
 6375                });
 6376            }
 6377        }
 6378    }
 6379
 6380    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6381        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6382    }
 6383
 6384    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6385        self.active_call.as_ref().map(|(call, _)| call.clone())
 6386    }
 6387
 6388    fn on_active_call_event(
 6389        &mut self,
 6390        event: &ActiveCallEvent,
 6391        window: &mut Window,
 6392        cx: &mut Context<Self>,
 6393    ) {
 6394        match event {
 6395            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6396            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6397                self.leader_updated(participant_id, window, cx);
 6398            }
 6399        }
 6400    }
 6401
 6402    pub fn database_id(&self) -> Option<WorkspaceId> {
 6403        self.database_id
 6404    }
 6405
 6406    #[cfg(any(test, feature = "test-support"))]
 6407    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6408        self.database_id = Some(id);
 6409    }
 6410
 6411    pub fn session_id(&self) -> Option<String> {
 6412        self.session_id.clone()
 6413    }
 6414
 6415    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6416        let Some(display) = window.display(cx) else {
 6417            return Task::ready(());
 6418        };
 6419        let Ok(display_uuid) = display.uuid() else {
 6420            return Task::ready(());
 6421        };
 6422
 6423        let window_bounds = window.inner_window_bounds();
 6424        let database_id = self.database_id;
 6425        let has_paths = !self.root_paths(cx).is_empty();
 6426        let db = WorkspaceDb::global(cx);
 6427        let kvp = db::kvp::KeyValueStore::global(cx);
 6428
 6429        cx.background_executor().spawn(async move {
 6430            if !has_paths {
 6431                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6432                    .await
 6433                    .log_err();
 6434            }
 6435            if let Some(database_id) = database_id {
 6436                db.set_window_open_status(
 6437                    database_id,
 6438                    SerializedWindowBounds(window_bounds),
 6439                    display_uuid,
 6440                )
 6441                .await
 6442                .log_err();
 6443            } else {
 6444                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6445                    .await
 6446                    .log_err();
 6447            }
 6448        })
 6449    }
 6450
 6451    /// Bypass the 200ms serialization throttle and write workspace state to
 6452    /// the DB immediately. Returns a task the caller can await to ensure the
 6453    /// write completes. Used by the quit handler so the most recent state
 6454    /// isn't lost to a pending throttle timer when the process exits.
 6455    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6456        self._schedule_serialize_workspace.take();
 6457        self._serialize_workspace_task.take();
 6458        self.bounds_save_task_queued.take();
 6459
 6460        let bounds_task = self.save_window_bounds(window, cx);
 6461        let serialize_task = self.serialize_workspace_internal(window, cx);
 6462        cx.spawn(async move |_| {
 6463            bounds_task.await;
 6464            serialize_task.await;
 6465        })
 6466    }
 6467
 6468    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6469        let project = self.project().read(cx);
 6470        project
 6471            .visible_worktrees(cx)
 6472            .map(|worktree| worktree.read(cx).abs_path())
 6473            .collect::<Vec<_>>()
 6474    }
 6475
 6476    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6477        match member {
 6478            Member::Axis(PaneAxis { members, .. }) => {
 6479                for child in members.iter() {
 6480                    self.remove_panes(child.clone(), window, cx)
 6481                }
 6482            }
 6483            Member::Pane(pane) => {
 6484                self.force_remove_pane(&pane, &None, window, cx);
 6485            }
 6486        }
 6487    }
 6488
 6489    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6490        self.session_id.take();
 6491        self.serialize_workspace_internal(window, cx)
 6492    }
 6493
 6494    fn force_remove_pane(
 6495        &mut self,
 6496        pane: &Entity<Pane>,
 6497        focus_on: &Option<Entity<Pane>>,
 6498        window: &mut Window,
 6499        cx: &mut Context<Workspace>,
 6500    ) {
 6501        self.panes.retain(|p| p != pane);
 6502        if let Some(focus_on) = focus_on {
 6503            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6504        } else if self.active_pane() == pane {
 6505            let fallback_pane = self.panes.last().unwrap().clone();
 6506            if self.has_active_modal(window, cx) {
 6507                self.set_active_pane(&fallback_pane, window, cx);
 6508            } else {
 6509                fallback_pane.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6510            }
 6511        }
 6512        if self.last_active_center_pane == Some(pane.downgrade()) {
 6513            self.last_active_center_pane = None;
 6514        }
 6515        cx.notify();
 6516    }
 6517
 6518    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6519        if self._schedule_serialize_workspace.is_none() {
 6520            self._schedule_serialize_workspace =
 6521                Some(cx.spawn_in(window, async move |this, cx| {
 6522                    cx.background_executor()
 6523                        .timer(SERIALIZATION_THROTTLE_TIME)
 6524                        .await;
 6525                    this.update_in(cx, |this, window, cx| {
 6526                        this._serialize_workspace_task =
 6527                            Some(this.serialize_workspace_internal(window, cx));
 6528                        this._schedule_serialize_workspace.take();
 6529                    })
 6530                    .log_err();
 6531                }));
 6532        }
 6533    }
 6534
 6535    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6536        let Some(database_id) = self.database_id() else {
 6537            return Task::ready(());
 6538        };
 6539
 6540        fn serialize_pane_handle(
 6541            pane_handle: &Entity<Pane>,
 6542            window: &mut Window,
 6543            cx: &mut App,
 6544        ) -> SerializedPane {
 6545            let (items, active, pinned_count) = {
 6546                let pane = pane_handle.read(cx);
 6547                let active_item_id = pane.active_item().map(|item| item.item_id());
 6548                (
 6549                    pane.items()
 6550                        .filter_map(|handle| {
 6551                            let handle = handle.to_serializable_item_handle(cx)?;
 6552
 6553                            Some(SerializedItem {
 6554                                kind: Arc::from(handle.serialized_item_kind()),
 6555                                item_id: handle.item_id().as_u64(),
 6556                                active: Some(handle.item_id()) == active_item_id,
 6557                                preview: pane.is_active_preview_item(handle.item_id()),
 6558                            })
 6559                        })
 6560                        .collect::<Vec<_>>(),
 6561                    pane.has_focus(window, cx),
 6562                    pane.pinned_count(),
 6563                )
 6564            };
 6565
 6566            SerializedPane::new(items, active, pinned_count)
 6567        }
 6568
 6569        fn build_serialized_pane_group(
 6570            pane_group: &Member,
 6571            window: &mut Window,
 6572            cx: &mut App,
 6573        ) -> SerializedPaneGroup {
 6574            match pane_group {
 6575                Member::Axis(PaneAxis {
 6576                    axis,
 6577                    members,
 6578                    flexes,
 6579                    bounding_boxes: _,
 6580                }) => SerializedPaneGroup::Group {
 6581                    axis: SerializedAxis(*axis),
 6582                    children: members
 6583                        .iter()
 6584                        .map(|member| build_serialized_pane_group(member, window, cx))
 6585                        .collect::<Vec<_>>(),
 6586                    flexes: Some(flexes.lock().clone()),
 6587                },
 6588                Member::Pane(pane_handle) => {
 6589                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6590                }
 6591            }
 6592        }
 6593
 6594        fn build_serialized_docks(
 6595            this: &Workspace,
 6596            window: &mut Window,
 6597            cx: &mut App,
 6598        ) -> DockStructure {
 6599            this.capture_dock_state(window, cx)
 6600        }
 6601
 6602        match self.workspace_location(cx) {
 6603            WorkspaceLocation::Location(location, paths) => {
 6604                let breakpoints = self.project.update(cx, |project, cx| {
 6605                    project
 6606                        .breakpoint_store()
 6607                        .read(cx)
 6608                        .all_source_breakpoints(cx)
 6609                });
 6610                let user_toolchains = self
 6611                    .project
 6612                    .read(cx)
 6613                    .user_toolchains(cx)
 6614                    .unwrap_or_default();
 6615
 6616                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6617                let docks = build_serialized_docks(self, window, cx);
 6618                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6619
 6620                let serialized_workspace = SerializedWorkspace {
 6621                    id: database_id,
 6622                    location,
 6623                    paths,
 6624                    center_group,
 6625                    window_bounds,
 6626                    display: Default::default(),
 6627                    docks,
 6628                    centered_layout: self.centered_layout,
 6629                    session_id: self.session_id.clone(),
 6630                    breakpoints,
 6631                    window_id: Some(window.window_handle().window_id().as_u64()),
 6632                    user_toolchains,
 6633                };
 6634
 6635                let db = WorkspaceDb::global(cx);
 6636                window.spawn(cx, async move |_| {
 6637                    db.save_workspace(serialized_workspace).await;
 6638                })
 6639            }
 6640            WorkspaceLocation::DetachFromSession => {
 6641                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6642                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6643                // Save dock state for empty local workspaces
 6644                let docks = build_serialized_docks(self, window, cx);
 6645                let db = WorkspaceDb::global(cx);
 6646                let kvp = db::kvp::KeyValueStore::global(cx);
 6647                window.spawn(cx, async move |_| {
 6648                    db.set_window_open_status(
 6649                        database_id,
 6650                        window_bounds,
 6651                        display.unwrap_or_default(),
 6652                    )
 6653                    .await
 6654                    .log_err();
 6655                    db.set_session_id(database_id, None).await.log_err();
 6656                    persistence::write_default_dock_state(&kvp, docks)
 6657                        .await
 6658                        .log_err();
 6659                })
 6660            }
 6661            WorkspaceLocation::None => {
 6662                // Save dock state for empty non-local workspaces
 6663                let docks = build_serialized_docks(self, window, cx);
 6664                let kvp = db::kvp::KeyValueStore::global(cx);
 6665                window.spawn(cx, async move |_| {
 6666                    persistence::write_default_dock_state(&kvp, docks)
 6667                        .await
 6668                        .log_err();
 6669                })
 6670            }
 6671        }
 6672    }
 6673
 6674    fn has_any_items_open(&self, cx: &App) -> bool {
 6675        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6676    }
 6677
 6678    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6679        let paths = PathList::new(&self.root_paths(cx));
 6680        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6681            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6682        } else if self.project.read(cx).is_local() {
 6683            if !paths.is_empty() || self.has_any_items_open(cx) {
 6684                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6685            } else {
 6686                WorkspaceLocation::DetachFromSession
 6687            }
 6688        } else {
 6689            WorkspaceLocation::None
 6690        }
 6691    }
 6692
 6693    fn update_history(&self, cx: &mut App) {
 6694        let Some(id) = self.database_id() else {
 6695            return;
 6696        };
 6697        if !self.project.read(cx).is_local() {
 6698            return;
 6699        }
 6700        if let Some(manager) = HistoryManager::global(cx) {
 6701            let paths = PathList::new(&self.root_paths(cx));
 6702            manager.update(cx, |this, cx| {
 6703                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6704            });
 6705        }
 6706    }
 6707
 6708    async fn serialize_items(
 6709        this: &WeakEntity<Self>,
 6710        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6711        cx: &mut AsyncWindowContext,
 6712    ) -> Result<()> {
 6713        const CHUNK_SIZE: usize = 200;
 6714
 6715        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6716
 6717        while let Some(items_received) = serializable_items.next().await {
 6718            let unique_items =
 6719                items_received
 6720                    .into_iter()
 6721                    .fold(HashMap::default(), |mut acc, item| {
 6722                        acc.entry(item.item_id()).or_insert(item);
 6723                        acc
 6724                    });
 6725
 6726            // We use into_iter() here so that the references to the items are moved into
 6727            // the tasks and not kept alive while we're sleeping.
 6728            for (_, item) in unique_items.into_iter() {
 6729                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6730                    item.serialize(workspace, false, window, cx)
 6731                }) {
 6732                    cx.background_spawn(async move { task.await.log_err() })
 6733                        .detach();
 6734                }
 6735            }
 6736
 6737            cx.background_executor()
 6738                .timer(SERIALIZATION_THROTTLE_TIME)
 6739                .await;
 6740        }
 6741
 6742        Ok(())
 6743    }
 6744
 6745    pub(crate) fn enqueue_item_serialization(
 6746        &mut self,
 6747        item: Box<dyn SerializableItemHandle>,
 6748    ) -> Result<()> {
 6749        self.serializable_items_tx
 6750            .unbounded_send(item)
 6751            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6752    }
 6753
 6754    pub(crate) fn load_workspace(
 6755        serialized_workspace: SerializedWorkspace,
 6756        paths_to_open: Vec<Option<ProjectPath>>,
 6757        window: &mut Window,
 6758        cx: &mut Context<Workspace>,
 6759    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6760        cx.spawn_in(window, async move |workspace, cx| {
 6761            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6762
 6763            let mut center_group = None;
 6764            let mut center_items = None;
 6765
 6766            // Traverse the splits tree and add to things
 6767            if let Some((group, active_pane, items)) = serialized_workspace
 6768                .center_group
 6769                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6770                .await
 6771            {
 6772                center_items = Some(items);
 6773                center_group = Some((group, active_pane))
 6774            }
 6775
 6776            let mut items_by_project_path = HashMap::default();
 6777            let mut item_ids_by_kind = HashMap::default();
 6778            let mut all_deserialized_items = Vec::default();
 6779            cx.update(|_, cx| {
 6780                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6781                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6782                        item_ids_by_kind
 6783                            .entry(serializable_item_handle.serialized_item_kind())
 6784                            .or_insert(Vec::new())
 6785                            .push(item.item_id().as_u64() as ItemId);
 6786                    }
 6787
 6788                    if let Some(project_path) = item.project_path(cx) {
 6789                        items_by_project_path.insert(project_path, item.clone());
 6790                    }
 6791                    all_deserialized_items.push(item);
 6792                }
 6793            })?;
 6794
 6795            let opened_items = paths_to_open
 6796                .into_iter()
 6797                .map(|path_to_open| {
 6798                    path_to_open
 6799                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6800                })
 6801                .collect::<Vec<_>>();
 6802
 6803            // Remove old panes from workspace panes list
 6804            workspace.update_in(cx, |workspace, window, cx| {
 6805                if let Some((center_group, active_pane)) = center_group {
 6806                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6807
 6808                    // Swap workspace center group
 6809                    workspace.center = PaneGroup::with_root(center_group);
 6810                    workspace.center.set_is_center(true);
 6811                    workspace.center.mark_positions(cx);
 6812
 6813                    if let Some(active_pane) = active_pane {
 6814                        workspace.set_active_pane(&active_pane, window, cx);
 6815                        cx.focus_self(window);
 6816                    } else {
 6817                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6818                    }
 6819                }
 6820
 6821                let docks = serialized_workspace.docks;
 6822
 6823                for (dock, serialized_dock) in [
 6824                    (&mut workspace.right_dock, docks.right),
 6825                    (&mut workspace.left_dock, docks.left),
 6826                    (&mut workspace.bottom_dock, docks.bottom),
 6827                ]
 6828                .iter_mut()
 6829                {
 6830                    dock.update(cx, |dock, cx| {
 6831                        dock.serialized_dock = Some(serialized_dock.clone());
 6832                        dock.restore_state(window, cx);
 6833                    });
 6834                }
 6835
 6836                cx.notify();
 6837            })?;
 6838
 6839            let _ = project
 6840                .update(cx, |project, cx| {
 6841                    project
 6842                        .breakpoint_store()
 6843                        .update(cx, |breakpoint_store, cx| {
 6844                            breakpoint_store
 6845                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6846                        })
 6847                })
 6848                .await;
 6849
 6850            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6851            // after loading the items, we might have different items and in order to avoid
 6852            // the database filling up, we delete items that haven't been loaded now.
 6853            //
 6854            // The items that have been loaded, have been saved after they've been added to the workspace.
 6855            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6856                item_ids_by_kind
 6857                    .into_iter()
 6858                    .map(|(item_kind, loaded_items)| {
 6859                        SerializableItemRegistry::cleanup(
 6860                            item_kind,
 6861                            serialized_workspace.id,
 6862                            loaded_items,
 6863                            window,
 6864                            cx,
 6865                        )
 6866                        .log_err()
 6867                    })
 6868                    .collect::<Vec<_>>()
 6869            })?;
 6870
 6871            futures::future::join_all(clean_up_tasks).await;
 6872
 6873            workspace
 6874                .update_in(cx, |workspace, window, cx| {
 6875                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6876                    workspace.serialize_workspace_internal(window, cx).detach();
 6877
 6878                    // Ensure that we mark the window as edited if we did load dirty items
 6879                    workspace.update_window_edited(window, cx);
 6880                })
 6881                .ok();
 6882
 6883            Ok(opened_items)
 6884        })
 6885    }
 6886
 6887    pub fn key_context(&self, cx: &App) -> KeyContext {
 6888        let mut context = KeyContext::new_with_defaults();
 6889        context.add("Workspace");
 6890        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6891        if let Some(status) = self
 6892            .debugger_provider
 6893            .as_ref()
 6894            .and_then(|provider| provider.active_thread_state(cx))
 6895        {
 6896            match status {
 6897                ThreadStatus::Running | ThreadStatus::Stepping => {
 6898                    context.add("debugger_running");
 6899                }
 6900                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6901                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6902            }
 6903        }
 6904
 6905        if self.left_dock.read(cx).is_open() {
 6906            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6907                context.set("left_dock", active_panel.panel_key());
 6908            }
 6909        }
 6910
 6911        if self.right_dock.read(cx).is_open() {
 6912            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6913                context.set("right_dock", active_panel.panel_key());
 6914            }
 6915        }
 6916
 6917        if self.bottom_dock.read(cx).is_open() {
 6918            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6919                context.set("bottom_dock", active_panel.panel_key());
 6920            }
 6921        }
 6922
 6923        context
 6924    }
 6925
 6926    /// Multiworkspace uses this to add workspace action handling to itself
 6927    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6928        self.add_workspace_actions_listeners(div, window, cx)
 6929            .on_action(cx.listener(
 6930                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6931                    for action in &action_sequence.0 {
 6932                        window.dispatch_action(action.boxed_clone(), cx);
 6933                    }
 6934                },
 6935            ))
 6936            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6937            .on_action(cx.listener(Self::close_all_items_and_panes))
 6938            .on_action(cx.listener(Self::close_item_in_all_panes))
 6939            .on_action(cx.listener(Self::save_all))
 6940            .on_action(cx.listener(Self::send_keystrokes))
 6941            .on_action(cx.listener(Self::add_folder_to_project))
 6942            .on_action(cx.listener(Self::follow_next_collaborator))
 6943            .on_action(cx.listener(Self::activate_pane_at_index))
 6944            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6945            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6946            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6947            .on_action(cx.listener(Self::toggle_theme_mode))
 6948            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6949                let pane = workspace.active_pane().clone();
 6950                workspace.unfollow_in_pane(&pane, window, cx);
 6951            }))
 6952            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6953                workspace
 6954                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6955                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6956            }))
 6957            .on_action(cx.listener(|workspace, _: &FormatAndSave, window, cx| {
 6958                workspace
 6959                    .save_active_item(SaveIntent::FormatAndSave, window, cx)
 6960                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6961            }))
 6962            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6963                workspace
 6964                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6965                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6966            }))
 6967            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6968                workspace
 6969                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6970                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6971            }))
 6972            .on_action(
 6973                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6974                    workspace.activate_previous_pane(window, cx)
 6975                }),
 6976            )
 6977            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6978                workspace.activate_next_pane(window, cx)
 6979            }))
 6980            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6981                workspace.activate_last_pane(window, cx)
 6982            }))
 6983            .on_action(
 6984                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6985                    workspace.activate_next_window(cx)
 6986                }),
 6987            )
 6988            .on_action(
 6989                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6990                    workspace.activate_previous_window(cx)
 6991                }),
 6992            )
 6993            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6994                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6995            }))
 6996            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6997                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6998            }))
 6999            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 7000                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 7001            }))
 7002            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 7003                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 7004            }))
 7005            .on_action(cx.listener(
 7006                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 7007                    workspace.move_item_to_pane_in_direction(action, window, cx)
 7008                },
 7009            ))
 7010            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 7011                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 7012            }))
 7013            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 7014                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 7015            }))
 7016            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 7017                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 7018            }))
 7019            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 7020                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 7021            }))
 7022            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 7023                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 7024                    SplitDirection::Down,
 7025                    SplitDirection::Up,
 7026                    SplitDirection::Right,
 7027                    SplitDirection::Left,
 7028                ];
 7029                for dir in DIRECTION_PRIORITY {
 7030                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 7031                        workspace.swap_pane_in_direction(dir, cx);
 7032                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 7033                        break;
 7034                    }
 7035                }
 7036            }))
 7037            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 7038                workspace.move_pane_to_border(SplitDirection::Left, cx)
 7039            }))
 7040            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 7041                workspace.move_pane_to_border(SplitDirection::Right, cx)
 7042            }))
 7043            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 7044                workspace.move_pane_to_border(SplitDirection::Up, cx)
 7045            }))
 7046            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 7047                workspace.move_pane_to_border(SplitDirection::Down, cx)
 7048            }))
 7049            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 7050                this.toggle_dock(DockPosition::Left, window, cx);
 7051            }))
 7052            .on_action(cx.listener(
 7053                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 7054                    workspace.toggle_dock(DockPosition::Right, window, cx);
 7055                },
 7056            ))
 7057            .on_action(cx.listener(
 7058                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 7059                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 7060                },
 7061            ))
 7062            .on_action(cx.listener(
 7063                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 7064                    if !workspace.close_active_dock(window, cx) {
 7065                        cx.propagate();
 7066                    }
 7067                },
 7068            ))
 7069            .on_action(
 7070                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 7071                    workspace.close_all_docks(window, cx);
 7072                }),
 7073            )
 7074            .on_action(cx.listener(Self::toggle_all_docks))
 7075            .on_action(cx.listener(
 7076                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 7077                    workspace.clear_all_notifications(cx);
 7078                },
 7079            ))
 7080            .on_action(cx.listener(
 7081                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 7082                    workspace.clear_navigation_history(window, cx);
 7083                },
 7084            ))
 7085            .on_action(cx.listener(
 7086                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 7087                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 7088                        workspace.suppress_notification(&notification_id, cx);
 7089                    }
 7090                },
 7091            ))
 7092            .on_action(cx.listener(
 7093                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 7094                    workspace.show_worktree_trust_security_modal(true, window, cx);
 7095                },
 7096            ))
 7097            .on_action(
 7098                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 7099                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 7100                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 7101                            trusted_worktrees.clear_trusted_paths()
 7102                        });
 7103                        let db = WorkspaceDb::global(cx);
 7104                        cx.spawn(async move |_, cx| {
 7105                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 7106                                cx.update(|cx| reload(cx));
 7107                            }
 7108                        })
 7109                        .detach();
 7110                    }
 7111                }),
 7112            )
 7113            .on_action(cx.listener(
 7114                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 7115                    workspace.reopen_closed_item(window, cx).detach();
 7116                },
 7117            ))
 7118            .on_action(cx.listener(
 7119                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 7120                    for dock in workspace.all_docks() {
 7121                        if dock.focus_handle(cx).contains_focused(window, cx) {
 7122                            let panel = dock.read(cx).active_panel().cloned();
 7123                            if let Some(panel) = panel {
 7124                                dock.update(cx, |dock, cx| {
 7125                                    dock.set_panel_size_state(
 7126                                        panel.as_ref(),
 7127                                        dock::PanelSizeState::default(),
 7128                                        cx,
 7129                                    );
 7130                                });
 7131                            }
 7132                            return;
 7133                        }
 7134                    }
 7135                },
 7136            ))
 7137            .on_action(cx.listener(
 7138                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 7139                    for dock in workspace.all_docks() {
 7140                        let panel = dock.read(cx).visible_panel().cloned();
 7141                        if let Some(panel) = panel {
 7142                            dock.update(cx, |dock, cx| {
 7143                                dock.set_panel_size_state(
 7144                                    panel.as_ref(),
 7145                                    dock::PanelSizeState::default(),
 7146                                    cx,
 7147                                );
 7148                            });
 7149                        }
 7150                    }
 7151                },
 7152            ))
 7153            .on_action(cx.listener(
 7154                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 7155                    adjust_active_dock_size_by_px(
 7156                        px_with_ui_font_fallback(act.px, cx),
 7157                        workspace,
 7158                        window,
 7159                        cx,
 7160                    );
 7161                },
 7162            ))
 7163            .on_action(cx.listener(
 7164                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 7165                    adjust_active_dock_size_by_px(
 7166                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7167                        workspace,
 7168                        window,
 7169                        cx,
 7170                    );
 7171                },
 7172            ))
 7173            .on_action(cx.listener(
 7174                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 7175                    adjust_open_docks_size_by_px(
 7176                        px_with_ui_font_fallback(act.px, cx),
 7177                        workspace,
 7178                        window,
 7179                        cx,
 7180                    );
 7181                },
 7182            ))
 7183            .on_action(cx.listener(
 7184                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 7185                    adjust_open_docks_size_by_px(
 7186                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7187                        workspace,
 7188                        window,
 7189                        cx,
 7190                    );
 7191                },
 7192            ))
 7193            .on_action(cx.listener(Workspace::toggle_centered_layout))
 7194            .on_action(cx.listener(
 7195                |workspace: &mut Workspace, action: &pane::ActivateNextItem, window, cx| {
 7196                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7197                        let dock = active_dock.read(cx);
 7198                        if let Some(active_panel) = dock.active_panel() {
 7199                            if active_panel.pane(cx).is_none() {
 7200                                let mut recent_pane: Option<Entity<Pane>> = None;
 7201                                let mut recent_timestamp = 0;
 7202                                for pane_handle in workspace.panes() {
 7203                                    let pane = pane_handle.read(cx);
 7204                                    for entry in pane.activation_history() {
 7205                                        if entry.timestamp > recent_timestamp {
 7206                                            recent_timestamp = entry.timestamp;
 7207                                            recent_pane = Some(pane_handle.clone());
 7208                                        }
 7209                                    }
 7210                                }
 7211
 7212                                if let Some(pane) = recent_pane {
 7213                                    let wrap_around = action.wrap_around;
 7214                                    pane.update(cx, |pane, cx| {
 7215                                        let current_index = pane.active_item_index();
 7216                                        let items_len = pane.items_len();
 7217                                        if items_len > 0 {
 7218                                            let next_index = if current_index + 1 < items_len {
 7219                                                current_index + 1
 7220                                            } else if wrap_around {
 7221                                                0
 7222                                            } else {
 7223                                                return;
 7224                                            };
 7225                                            pane.activate_item(
 7226                                                next_index, false, false, window, cx,
 7227                                            );
 7228                                        }
 7229                                    });
 7230                                    return;
 7231                                }
 7232                            }
 7233                        }
 7234                    }
 7235                    cx.propagate();
 7236                },
 7237            ))
 7238            .on_action(cx.listener(
 7239                |workspace: &mut Workspace, action: &pane::ActivatePreviousItem, window, cx| {
 7240                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7241                        let dock = active_dock.read(cx);
 7242                        if let Some(active_panel) = dock.active_panel() {
 7243                            if active_panel.pane(cx).is_none() {
 7244                                let mut recent_pane: Option<Entity<Pane>> = None;
 7245                                let mut recent_timestamp = 0;
 7246                                for pane_handle in workspace.panes() {
 7247                                    let pane = pane_handle.read(cx);
 7248                                    for entry in pane.activation_history() {
 7249                                        if entry.timestamp > recent_timestamp {
 7250                                            recent_timestamp = entry.timestamp;
 7251                                            recent_pane = Some(pane_handle.clone());
 7252                                        }
 7253                                    }
 7254                                }
 7255
 7256                                if let Some(pane) = recent_pane {
 7257                                    let wrap_around = action.wrap_around;
 7258                                    pane.update(cx, |pane, cx| {
 7259                                        let current_index = pane.active_item_index();
 7260                                        let items_len = pane.items_len();
 7261                                        if items_len > 0 {
 7262                                            let prev_index = if current_index > 0 {
 7263                                                current_index - 1
 7264                                            } else if wrap_around {
 7265                                                items_len.saturating_sub(1)
 7266                                            } else {
 7267                                                return;
 7268                                            };
 7269                                            pane.activate_item(
 7270                                                prev_index, false, false, window, cx,
 7271                                            );
 7272                                        }
 7273                                    });
 7274                                    return;
 7275                                }
 7276                            }
 7277                        }
 7278                    }
 7279                    cx.propagate();
 7280                },
 7281            ))
 7282            .on_action(cx.listener(
 7283                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7284                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7285                        let dock = active_dock.read(cx);
 7286                        if let Some(active_panel) = dock.active_panel() {
 7287                            if active_panel.pane(cx).is_none() {
 7288                                let active_pane = workspace.active_pane().clone();
 7289                                active_pane.update(cx, |pane, cx| {
 7290                                    pane.close_active_item(action, window, cx)
 7291                                        .detach_and_log_err(cx);
 7292                                });
 7293                                return;
 7294                            }
 7295                        }
 7296                    }
 7297                    cx.propagate();
 7298                },
 7299            ))
 7300            .on_action(
 7301                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7302                    let pane = workspace.active_pane().clone();
 7303                    if let Some(item) = pane.read(cx).active_item() {
 7304                        item.toggle_read_only(window, cx);
 7305                    }
 7306                }),
 7307            )
 7308            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7309                workspace.focus_center_pane(window, cx);
 7310            }))
 7311            .on_action(cx.listener(Workspace::cancel))
 7312    }
 7313
 7314    #[cfg(any(test, feature = "test-support"))]
 7315    pub fn set_random_database_id(&mut self) {
 7316        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7317    }
 7318
 7319    #[cfg(any(test, feature = "test-support"))]
 7320    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 7321        use node_runtime::NodeRuntime;
 7322        use session::Session;
 7323
 7324        let client = project.read(cx).client();
 7325        let user_store = project.read(cx).user_store();
 7326        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7327        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7328        window.activate_window();
 7329        let app_state = Arc::new(AppState {
 7330            languages: project.read(cx).languages().clone(),
 7331            workspace_store,
 7332            client,
 7333            user_store,
 7334            fs: project.read(cx).fs().clone(),
 7335            build_window_options: |_, _| Default::default(),
 7336            node_runtime: NodeRuntime::unavailable(),
 7337            session,
 7338        });
 7339        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7340        workspace
 7341            .active_pane
 7342            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7343        workspace
 7344    }
 7345
 7346    pub fn register_action<A: Action>(
 7347        &mut self,
 7348        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7349    ) -> &mut Self {
 7350        let callback = Arc::new(callback);
 7351
 7352        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7353            let callback = callback.clone();
 7354            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7355                (callback)(workspace, event, window, cx)
 7356            }))
 7357        }));
 7358        self
 7359    }
 7360    pub fn register_action_renderer(
 7361        &mut self,
 7362        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7363    ) -> &mut Self {
 7364        self.workspace_actions.push(Box::new(callback));
 7365        self
 7366    }
 7367
 7368    fn add_workspace_actions_listeners(
 7369        &self,
 7370        mut div: Div,
 7371        window: &mut Window,
 7372        cx: &mut Context<Self>,
 7373    ) -> Div {
 7374        for action in self.workspace_actions.iter() {
 7375            div = (action)(div, self, window, cx)
 7376        }
 7377        div
 7378    }
 7379
 7380    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7381        self.modal_layer.read(cx).has_active_modal()
 7382    }
 7383
 7384    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7385        self.modal_layer
 7386            .read(cx)
 7387            .is_active_modal_command_palette(cx)
 7388    }
 7389
 7390    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7391        self.modal_layer.read(cx).active_modal()
 7392    }
 7393
 7394    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7395    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7396    /// If no modal is active, the new modal will be shown.
 7397    ///
 7398    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7399    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7400    /// will not be shown.
 7401    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7402    where
 7403        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7404    {
 7405        self.modal_layer.update(cx, |modal_layer, cx| {
 7406            modal_layer.toggle_modal(window, cx, build)
 7407        })
 7408    }
 7409
 7410    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7411        self.modal_layer
 7412            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7413    }
 7414
 7415    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7416        self.toast_layer
 7417            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7418    }
 7419
 7420    pub fn toggle_centered_layout(
 7421        &mut self,
 7422        _: &ToggleCenteredLayout,
 7423        _: &mut Window,
 7424        cx: &mut Context<Self>,
 7425    ) {
 7426        self.centered_layout = !self.centered_layout;
 7427        if let Some(database_id) = self.database_id() {
 7428            let db = WorkspaceDb::global(cx);
 7429            let centered_layout = self.centered_layout;
 7430            cx.background_spawn(async move {
 7431                db.set_centered_layout(database_id, centered_layout).await
 7432            })
 7433            .detach_and_log_err(cx);
 7434        }
 7435        cx.notify();
 7436    }
 7437
 7438    fn adjust_padding(padding: Option<f32>) -> f32 {
 7439        padding
 7440            .unwrap_or(CenteredPaddingSettings::default().0)
 7441            .clamp(
 7442                CenteredPaddingSettings::MIN_PADDING,
 7443                CenteredPaddingSettings::MAX_PADDING,
 7444            )
 7445    }
 7446
 7447    fn render_dock(
 7448        &self,
 7449        position: DockPosition,
 7450        dock: &Entity<Dock>,
 7451        window: &mut Window,
 7452        cx: &mut App,
 7453    ) -> Option<Div> {
 7454        if self.zoomed_position == Some(position) {
 7455            return None;
 7456        }
 7457
 7458        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7459            let pane = panel.pane(cx)?;
 7460            let follower_states = &self.follower_states;
 7461            leader_border_for_pane(follower_states, &pane, window, cx)
 7462        });
 7463
 7464        let mut container = div()
 7465            .flex()
 7466            .overflow_hidden()
 7467            .flex_none()
 7468            .child(dock.clone())
 7469            .children(leader_border);
 7470
 7471        // Apply sizing only when the dock is open. When closed the dock is still
 7472        // included in the element tree so its focus handle remains mounted — without
 7473        // this, toggle_panel_focus cannot focus the panel when the dock is closed.
 7474        let dock = dock.read(cx);
 7475        if let Some(panel) = dock.visible_panel() {
 7476            let size_state = dock.stored_panel_size_state(panel.as_ref());
 7477            let min_size = panel.min_size(window, cx);
 7478            if position.axis() == Axis::Horizontal {
 7479                let use_flexible = panel.has_flexible_size(window, cx);
 7480                let flex_grow = if use_flexible {
 7481                    size_state
 7482                        .and_then(|state| state.flex)
 7483                        .or_else(|| self.default_dock_flex(position))
 7484                } else {
 7485                    None
 7486                };
 7487                if let Some(grow) = flex_grow {
 7488                    let grow = (grow / self.center_full_height_column_count()).max(0.001);
 7489                    let style = container.style();
 7490                    style.flex_grow = Some(grow);
 7491                    style.flex_shrink = Some(1.0);
 7492                    style.flex_basis = Some(relative(0.).into());
 7493                } else {
 7494                    let size = size_state
 7495                        .and_then(|state| state.size)
 7496                        .unwrap_or_else(|| panel.default_size(window, cx));
 7497                    container = container.w(size);
 7498                }
 7499                if let Some(min) = min_size {
 7500                    container = container.min_w(min);
 7501                }
 7502            } else {
 7503                let size = size_state
 7504                    .and_then(|state| state.size)
 7505                    .unwrap_or_else(|| panel.default_size(window, cx));
 7506                container = container.h(size);
 7507            }
 7508        }
 7509
 7510        Some(container)
 7511    }
 7512
 7513    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7514        window
 7515            .root::<MultiWorkspace>()
 7516            .flatten()
 7517            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7518    }
 7519
 7520    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7521        self.zoomed.as_ref()
 7522    }
 7523
 7524    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7525        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7526            return;
 7527        };
 7528        let windows = cx.windows();
 7529        let next_window =
 7530            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7531                || {
 7532                    windows
 7533                        .iter()
 7534                        .cycle()
 7535                        .skip_while(|window| window.window_id() != current_window_id)
 7536                        .nth(1)
 7537                },
 7538            );
 7539
 7540        if let Some(window) = next_window {
 7541            window
 7542                .update(cx, |_, window, _| window.activate_window())
 7543                .ok();
 7544        }
 7545    }
 7546
 7547    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7548        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7549            return;
 7550        };
 7551        let windows = cx.windows();
 7552        let prev_window =
 7553            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7554                || {
 7555                    windows
 7556                        .iter()
 7557                        .rev()
 7558                        .cycle()
 7559                        .skip_while(|window| window.window_id() != current_window_id)
 7560                        .nth(1)
 7561                },
 7562            );
 7563
 7564        if let Some(window) = prev_window {
 7565            window
 7566                .update(cx, |_, window, _| window.activate_window())
 7567                .ok();
 7568        }
 7569    }
 7570
 7571    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7572        if cx.stop_active_drag(window) {
 7573        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7574            dismiss_app_notification(&notification_id, cx);
 7575        } else {
 7576            cx.propagate();
 7577        }
 7578    }
 7579
 7580    fn resize_dock(
 7581        &mut self,
 7582        dock_pos: DockPosition,
 7583        new_size: Pixels,
 7584        window: &mut Window,
 7585        cx: &mut Context<Self>,
 7586    ) {
 7587        match dock_pos {
 7588            DockPosition::Left => self.resize_left_dock(new_size, window, cx),
 7589            DockPosition::Right => self.resize_right_dock(new_size, window, cx),
 7590            DockPosition::Bottom => self.resize_bottom_dock(new_size, window, cx),
 7591        }
 7592    }
 7593
 7594    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7595        let workspace_width = self.bounds.size.width;
 7596        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7597
 7598        self.right_dock.read_with(cx, |right_dock, cx| {
 7599            let right_dock_size = right_dock
 7600                .stored_active_panel_size(window, cx)
 7601                .unwrap_or(Pixels::ZERO);
 7602            if right_dock_size + size > workspace_width {
 7603                size = workspace_width - right_dock_size
 7604            }
 7605        });
 7606
 7607        let flex_grow = self.dock_flex_for_size(DockPosition::Left, size, window, cx);
 7608        self.left_dock.update(cx, |left_dock, cx| {
 7609            if WorkspaceSettings::get_global(cx)
 7610                .resize_all_panels_in_dock
 7611                .contains(&DockPosition::Left)
 7612            {
 7613                left_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7614            } else {
 7615                left_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7616            }
 7617        });
 7618    }
 7619
 7620    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7621        let workspace_width = self.bounds.size.width;
 7622        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7623        self.left_dock.read_with(cx, |left_dock, cx| {
 7624            let left_dock_size = left_dock
 7625                .stored_active_panel_size(window, cx)
 7626                .unwrap_or(Pixels::ZERO);
 7627            if left_dock_size + size > workspace_width {
 7628                size = workspace_width - left_dock_size
 7629            }
 7630        });
 7631        let flex_grow = self.dock_flex_for_size(DockPosition::Right, size, window, cx);
 7632        self.right_dock.update(cx, |right_dock, cx| {
 7633            if WorkspaceSettings::get_global(cx)
 7634                .resize_all_panels_in_dock
 7635                .contains(&DockPosition::Right)
 7636            {
 7637                right_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7638            } else {
 7639                right_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7640            }
 7641        });
 7642    }
 7643
 7644    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7645        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7646        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7647            if WorkspaceSettings::get_global(cx)
 7648                .resize_all_panels_in_dock
 7649                .contains(&DockPosition::Bottom)
 7650            {
 7651                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7652            } else {
 7653                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7654            }
 7655        });
 7656    }
 7657
 7658    fn toggle_edit_predictions_all_files(
 7659        &mut self,
 7660        _: &ToggleEditPrediction,
 7661        _window: &mut Window,
 7662        cx: &mut Context<Self>,
 7663    ) {
 7664        let fs = self.project().read(cx).fs().clone();
 7665        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7666        update_settings_file(fs, cx, move |file, _| {
 7667            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7668        });
 7669    }
 7670
 7671    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7672        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7673        let next_mode = match current_mode {
 7674            Some(theme_settings::ThemeAppearanceMode::Light) => {
 7675                theme_settings::ThemeAppearanceMode::Dark
 7676            }
 7677            Some(theme_settings::ThemeAppearanceMode::Dark) => {
 7678                theme_settings::ThemeAppearanceMode::Light
 7679            }
 7680            Some(theme_settings::ThemeAppearanceMode::System) | None => {
 7681                match cx.theme().appearance() {
 7682                    theme::Appearance::Light => theme_settings::ThemeAppearanceMode::Dark,
 7683                    theme::Appearance::Dark => theme_settings::ThemeAppearanceMode::Light,
 7684                }
 7685            }
 7686        };
 7687
 7688        let fs = self.project().read(cx).fs().clone();
 7689        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7690            theme_settings::set_mode(settings, next_mode);
 7691        });
 7692    }
 7693
 7694    pub fn show_worktree_trust_security_modal(
 7695        &mut self,
 7696        toggle: bool,
 7697        window: &mut Window,
 7698        cx: &mut Context<Self>,
 7699    ) {
 7700        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7701            if toggle {
 7702                security_modal.update(cx, |security_modal, cx| {
 7703                    security_modal.dismiss(cx);
 7704                })
 7705            } else {
 7706                security_modal.update(cx, |security_modal, cx| {
 7707                    security_modal.refresh_restricted_paths(cx);
 7708                });
 7709            }
 7710        } else {
 7711            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7712                .map(|trusted_worktrees| {
 7713                    trusted_worktrees
 7714                        .read(cx)
 7715                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7716                })
 7717                .unwrap_or(false);
 7718            if has_restricted_worktrees {
 7719                let project = self.project().read(cx);
 7720                let remote_host = project
 7721                    .remote_connection_options(cx)
 7722                    .map(RemoteHostLocation::from);
 7723                let worktree_store = project.worktree_store().downgrade();
 7724                self.toggle_modal(window, cx, |_, cx| {
 7725                    SecurityModal::new(worktree_store, remote_host, cx)
 7726                });
 7727            }
 7728        }
 7729    }
 7730}
 7731
 7732pub trait AnyActiveCall {
 7733    fn entity(&self) -> AnyEntity;
 7734    fn is_in_room(&self, _: &App) -> bool;
 7735    fn room_id(&self, _: &App) -> Option<u64>;
 7736    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7737    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7738    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7739    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7740    fn is_sharing_project(&self, _: &App) -> bool;
 7741    fn has_remote_participants(&self, _: &App) -> bool;
 7742    fn local_participant_is_guest(&self, _: &App) -> bool;
 7743    fn client(&self, _: &App) -> Arc<Client>;
 7744    fn share_on_join(&self, _: &App) -> bool;
 7745    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7746    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7747    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7748    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7749    fn join_project(
 7750        &self,
 7751        _: u64,
 7752        _: Arc<LanguageRegistry>,
 7753        _: Arc<dyn Fs>,
 7754        _: &mut App,
 7755    ) -> Task<Result<Entity<Project>>>;
 7756    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7757    fn subscribe(
 7758        &self,
 7759        _: &mut Window,
 7760        _: &mut Context<Workspace>,
 7761        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7762    ) -> Subscription;
 7763    fn create_shared_screen(
 7764        &self,
 7765        _: PeerId,
 7766        _: &Entity<Pane>,
 7767        _: &mut Window,
 7768        _: &mut App,
 7769    ) -> Option<Entity<SharedScreen>>;
 7770}
 7771
 7772#[derive(Clone)]
 7773pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7774impl Global for GlobalAnyActiveCall {}
 7775
 7776impl GlobalAnyActiveCall {
 7777    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7778        cx.try_global()
 7779    }
 7780
 7781    pub(crate) fn global(cx: &App) -> &Self {
 7782        cx.global()
 7783    }
 7784}
 7785
 7786/// Workspace-local view of a remote participant's location.
 7787#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7788pub enum ParticipantLocation {
 7789    SharedProject { project_id: u64 },
 7790    UnsharedProject,
 7791    External,
 7792}
 7793
 7794impl ParticipantLocation {
 7795    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7796        match location
 7797            .and_then(|l| l.variant)
 7798            .context("participant location was not provided")?
 7799        {
 7800            proto::participant_location::Variant::SharedProject(project) => {
 7801                Ok(Self::SharedProject {
 7802                    project_id: project.id,
 7803                })
 7804            }
 7805            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7806            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7807        }
 7808    }
 7809}
 7810/// Workspace-local view of a remote collaborator's state.
 7811/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7812#[derive(Clone)]
 7813pub struct RemoteCollaborator {
 7814    pub user: Arc<User>,
 7815    pub peer_id: PeerId,
 7816    pub location: ParticipantLocation,
 7817    pub participant_index: ParticipantIndex,
 7818}
 7819
 7820pub enum ActiveCallEvent {
 7821    ParticipantLocationChanged { participant_id: PeerId },
 7822    RemoteVideoTracksChanged { participant_id: PeerId },
 7823}
 7824
 7825fn leader_border_for_pane(
 7826    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7827    pane: &Entity<Pane>,
 7828    _: &Window,
 7829    cx: &App,
 7830) -> Option<Div> {
 7831    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7832        if state.pane() == pane {
 7833            Some((*leader_id, state))
 7834        } else {
 7835            None
 7836        }
 7837    })?;
 7838
 7839    let mut leader_color = match leader_id {
 7840        CollaboratorId::PeerId(leader_peer_id) => {
 7841            let leader = GlobalAnyActiveCall::try_global(cx)?
 7842                .0
 7843                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7844
 7845            cx.theme()
 7846                .players()
 7847                .color_for_participant(leader.participant_index.0)
 7848                .cursor
 7849        }
 7850        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7851    };
 7852    leader_color.fade_out(0.3);
 7853    Some(
 7854        div()
 7855            .absolute()
 7856            .size_full()
 7857            .left_0()
 7858            .top_0()
 7859            .border_2()
 7860            .border_color(leader_color),
 7861    )
 7862}
 7863
 7864fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7865    ZED_WINDOW_POSITION
 7866        .zip(*ZED_WINDOW_SIZE)
 7867        .map(|(position, size)| Bounds {
 7868            origin: position,
 7869            size,
 7870        })
 7871}
 7872
 7873fn open_items(
 7874    serialized_workspace: Option<SerializedWorkspace>,
 7875    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7876    window: &mut Window,
 7877    cx: &mut Context<Workspace>,
 7878) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7879    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7880        Workspace::load_workspace(
 7881            serialized_workspace,
 7882            project_paths_to_open
 7883                .iter()
 7884                .map(|(_, project_path)| project_path)
 7885                .cloned()
 7886                .collect(),
 7887            window,
 7888            cx,
 7889        )
 7890    });
 7891
 7892    cx.spawn_in(window, async move |workspace, cx| {
 7893        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7894
 7895        if let Some(restored_items) = restored_items {
 7896            let restored_items = restored_items.await?;
 7897
 7898            let restored_project_paths = restored_items
 7899                .iter()
 7900                .filter_map(|item| {
 7901                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7902                        .ok()
 7903                        .flatten()
 7904                })
 7905                .collect::<HashSet<_>>();
 7906
 7907            for restored_item in restored_items {
 7908                opened_items.push(restored_item.map(Ok));
 7909            }
 7910
 7911            project_paths_to_open
 7912                .iter_mut()
 7913                .for_each(|(_, project_path)| {
 7914                    if let Some(project_path_to_open) = project_path
 7915                        && restored_project_paths.contains(project_path_to_open)
 7916                    {
 7917                        *project_path = None;
 7918                    }
 7919                });
 7920        } else {
 7921            for _ in 0..project_paths_to_open.len() {
 7922                opened_items.push(None);
 7923            }
 7924        }
 7925        assert!(opened_items.len() == project_paths_to_open.len());
 7926
 7927        let tasks =
 7928            project_paths_to_open
 7929                .into_iter()
 7930                .enumerate()
 7931                .map(|(ix, (abs_path, project_path))| {
 7932                    let workspace = workspace.clone();
 7933                    cx.spawn(async move |cx| {
 7934                        let file_project_path = project_path?;
 7935                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7936                            workspace.project().update(cx, |project, cx| {
 7937                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7938                            })
 7939                        });
 7940
 7941                        // We only want to open file paths here. If one of the items
 7942                        // here is a directory, it was already opened further above
 7943                        // with a `find_or_create_worktree`.
 7944                        if let Ok(task) = abs_path_task
 7945                            && task.await.is_none_or(|p| p.is_file())
 7946                        {
 7947                            return Some((
 7948                                ix,
 7949                                workspace
 7950                                    .update_in(cx, |workspace, window, cx| {
 7951                                        workspace.open_path(
 7952                                            file_project_path,
 7953                                            None,
 7954                                            true,
 7955                                            window,
 7956                                            cx,
 7957                                        )
 7958                                    })
 7959                                    .log_err()?
 7960                                    .await,
 7961                            ));
 7962                        }
 7963                        None
 7964                    })
 7965                });
 7966
 7967        let tasks = tasks.collect::<Vec<_>>();
 7968
 7969        let tasks = futures::future::join_all(tasks);
 7970        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7971            opened_items[ix] = Some(path_open_result);
 7972        }
 7973
 7974        Ok(opened_items)
 7975    })
 7976}
 7977
 7978#[derive(Clone)]
 7979enum ActivateInDirectionTarget {
 7980    Pane(Entity<Pane>),
 7981    Dock(Entity<Dock>),
 7982    Sidebar(FocusHandle),
 7983}
 7984
 7985fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7986    window
 7987        .update(cx, |multi_workspace, _, cx| {
 7988            let workspace = multi_workspace.workspace().clone();
 7989            workspace.update(cx, |workspace, cx| {
 7990                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7991                    struct DatabaseFailedNotification;
 7992
 7993                    workspace.show_notification(
 7994                        NotificationId::unique::<DatabaseFailedNotification>(),
 7995                        cx,
 7996                        |cx| {
 7997                            cx.new(|cx| {
 7998                                MessageNotification::new("Failed to load the database file.", cx)
 7999                                    .primary_message("File an Issue")
 8000                                    .primary_icon(IconName::Plus)
 8001                                    .primary_on_click(|window, cx| {
 8002                                        window.dispatch_action(Box::new(FileBugReport), cx)
 8003                                    })
 8004                            })
 8005                        },
 8006                    );
 8007                }
 8008            });
 8009        })
 8010        .log_err();
 8011}
 8012
 8013fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 8014    if val == 0 {
 8015        ThemeSettings::get_global(cx).ui_font_size(cx)
 8016    } else {
 8017        px(val as f32)
 8018    }
 8019}
 8020
 8021fn adjust_active_dock_size_by_px(
 8022    px: Pixels,
 8023    workspace: &mut Workspace,
 8024    window: &mut Window,
 8025    cx: &mut Context<Workspace>,
 8026) {
 8027    let Some(active_dock) = workspace
 8028        .all_docks()
 8029        .into_iter()
 8030        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 8031    else {
 8032        return;
 8033    };
 8034    let dock = active_dock.read(cx);
 8035    let Some(panel_size) = workspace.dock_size(&dock, window, cx) else {
 8036        return;
 8037    };
 8038    workspace.resize_dock(dock.position(), panel_size + px, window, cx);
 8039}
 8040
 8041fn adjust_open_docks_size_by_px(
 8042    px: Pixels,
 8043    workspace: &mut Workspace,
 8044    window: &mut Window,
 8045    cx: &mut Context<Workspace>,
 8046) {
 8047    let docks = workspace
 8048        .all_docks()
 8049        .into_iter()
 8050        .filter_map(|dock_entity| {
 8051            let dock = dock_entity.read(cx);
 8052            if dock.is_open() {
 8053                let dock_pos = dock.position();
 8054                let panel_size = workspace.dock_size(&dock, window, cx)?;
 8055                Some((dock_pos, panel_size + px))
 8056            } else {
 8057                None
 8058            }
 8059        })
 8060        .collect::<Vec<_>>();
 8061
 8062    for (position, new_size) in docks {
 8063        workspace.resize_dock(position, new_size, window, cx);
 8064    }
 8065}
 8066
 8067impl Focusable for Workspace {
 8068    fn focus_handle(&self, cx: &App) -> FocusHandle {
 8069        self.active_pane.focus_handle(cx)
 8070    }
 8071}
 8072
 8073#[derive(Clone)]
 8074struct DraggedDock(DockPosition);
 8075
 8076impl Render for DraggedDock {
 8077    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 8078        gpui::Empty
 8079    }
 8080}
 8081
 8082impl Render for Workspace {
 8083    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 8084        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 8085        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 8086            log::info!("Rendered first frame");
 8087        }
 8088
 8089        let centered_layout = self.centered_layout
 8090            && self.center.panes().len() == 1
 8091            && self.active_item(cx).is_some();
 8092        let render_padding = |size| {
 8093            (size > 0.0).then(|| {
 8094                div()
 8095                    .h_full()
 8096                    .w(relative(size))
 8097                    .bg(cx.theme().colors().editor_background)
 8098                    .border_color(cx.theme().colors().pane_group_border)
 8099            })
 8100        };
 8101        let paddings = if centered_layout {
 8102            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 8103            (
 8104                render_padding(Self::adjust_padding(
 8105                    settings.left_padding.map(|padding| padding.0),
 8106                )),
 8107                render_padding(Self::adjust_padding(
 8108                    settings.right_padding.map(|padding| padding.0),
 8109                )),
 8110            )
 8111        } else {
 8112            (None, None)
 8113        };
 8114        let ui_font = theme_settings::setup_ui_font(window, cx);
 8115
 8116        let theme = cx.theme().clone();
 8117        let colors = theme.colors();
 8118        let notification_entities = self
 8119            .notifications
 8120            .iter()
 8121            .map(|(_, notification)| notification.entity_id())
 8122            .collect::<Vec<_>>();
 8123        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 8124
 8125        div()
 8126            .relative()
 8127            .size_full()
 8128            .flex()
 8129            .flex_col()
 8130            .font(ui_font)
 8131            .gap_0()
 8132                .justify_start()
 8133                .items_start()
 8134                .text_color(colors.text)
 8135                .overflow_hidden()
 8136                .children(self.titlebar_item.clone())
 8137                .on_modifiers_changed(move |_, _, cx| {
 8138                    for &id in &notification_entities {
 8139                        cx.notify(id);
 8140                    }
 8141                })
 8142                .child(
 8143                    div()
 8144                        .size_full()
 8145                        .relative()
 8146                        .flex_1()
 8147                        .flex()
 8148                        .flex_col()
 8149                        .child(
 8150                            div()
 8151                                .id("workspace")
 8152                                .bg(colors.background)
 8153                                .relative()
 8154                                .flex_1()
 8155                                .w_full()
 8156                                .flex()
 8157                                .flex_col()
 8158                                .overflow_hidden()
 8159                                .border_t_1()
 8160                                .border_b_1()
 8161                                .border_color(colors.border)
 8162                                .child({
 8163                                    let this = cx.entity();
 8164                                    canvas(
 8165                                        move |bounds, window, cx| {
 8166                                            this.update(cx, |this, cx| {
 8167                                                let bounds_changed = this.bounds != bounds;
 8168                                                this.bounds = bounds;
 8169
 8170                                                if bounds_changed {
 8171                                                    this.left_dock.update(cx, |dock, cx| {
 8172                                                        dock.clamp_panel_size(
 8173                                                            bounds.size.width,
 8174                                                            window,
 8175                                                            cx,
 8176                                                        )
 8177                                                    });
 8178
 8179                                                    this.right_dock.update(cx, |dock, cx| {
 8180                                                        dock.clamp_panel_size(
 8181                                                            bounds.size.width,
 8182                                                            window,
 8183                                                            cx,
 8184                                                        )
 8185                                                    });
 8186
 8187                                                    this.bottom_dock.update(cx, |dock, cx| {
 8188                                                        dock.clamp_panel_size(
 8189                                                            bounds.size.height,
 8190                                                            window,
 8191                                                            cx,
 8192                                                        )
 8193                                                    });
 8194                                                }
 8195                                            })
 8196                                        },
 8197                                        |_, _, _, _| {},
 8198                                    )
 8199                                    .absolute()
 8200                                    .size_full()
 8201                                })
 8202                                .when(self.zoomed.is_none(), |this| {
 8203                                    this.on_drag_move(cx.listener(
 8204                                        move |workspace,
 8205                                              e: &DragMoveEvent<DraggedDock>,
 8206                                              window,
 8207                                              cx| {
 8208                                            if workspace.previous_dock_drag_coordinates
 8209                                                != Some(e.event.position)
 8210                                            {
 8211                                                workspace.previous_dock_drag_coordinates =
 8212                                                    Some(e.event.position);
 8213
 8214                                                match e.drag(cx).0 {
 8215                                                    DockPosition::Left => {
 8216                                                        workspace.resize_left_dock(
 8217                                                            e.event.position.x
 8218                                                                - workspace.bounds.left(),
 8219                                                            window,
 8220                                                            cx,
 8221                                                        );
 8222                                                    }
 8223                                                    DockPosition::Right => {
 8224                                                        workspace.resize_right_dock(
 8225                                                            workspace.bounds.right()
 8226                                                                - e.event.position.x,
 8227                                                            window,
 8228                                                            cx,
 8229                                                        );
 8230                                                    }
 8231                                                    DockPosition::Bottom => {
 8232                                                        workspace.resize_bottom_dock(
 8233                                                            workspace.bounds.bottom()
 8234                                                                - e.event.position.y,
 8235                                                            window,
 8236                                                            cx,
 8237                                                        );
 8238                                                    }
 8239                                                };
 8240                                                workspace.serialize_workspace(window, cx);
 8241                                            }
 8242                                        },
 8243                                    ))
 8244
 8245                                })
 8246                                .child({
 8247                                    match bottom_dock_layout {
 8248                                        BottomDockLayout::Full => div()
 8249                                            .flex()
 8250                                            .flex_col()
 8251                                            .h_full()
 8252                                            .child(
 8253                                                div()
 8254                                                    .flex()
 8255                                                    .flex_row()
 8256                                                    .flex_1()
 8257                                                    .overflow_hidden()
 8258                                                    .children(self.render_dock(
 8259                                                        DockPosition::Left,
 8260                                                        &self.left_dock,
 8261                                                        window,
 8262                                                        cx,
 8263                                                    ))
 8264
 8265                                                    .child(
 8266                                                        div()
 8267                                                            .flex()
 8268                                                            .flex_col()
 8269                                                            .flex_1()
 8270                                                            .overflow_hidden()
 8271                                                            .child(
 8272                                                                h_flex()
 8273                                                                    .flex_1()
 8274                                                                    .when_some(
 8275                                                                        paddings.0,
 8276                                                                        |this, p| {
 8277                                                                            this.child(
 8278                                                                                p.border_r_1(),
 8279                                                                            )
 8280                                                                        },
 8281                                                                    )
 8282                                                                    .child(self.center.render(
 8283                                                                        self.zoomed.as_ref(),
 8284                                                                        &PaneRenderContext {
 8285                                                                            follower_states:
 8286                                                                                &self.follower_states,
 8287                                                                            active_call: self.active_call(),
 8288                                                                            active_pane: &self.active_pane,
 8289                                                                            app_state: &self.app_state,
 8290                                                                            project: &self.project,
 8291                                                                            workspace: &self.weak_self,
 8292                                                                        },
 8293                                                                        window,
 8294                                                                        cx,
 8295                                                                    ))
 8296                                                                    .when_some(
 8297                                                                        paddings.1,
 8298                                                                        |this, p| {
 8299                                                                            this.child(
 8300                                                                                p.border_l_1(),
 8301                                                                            )
 8302                                                                        },
 8303                                                                    ),
 8304                                                            ),
 8305                                                    )
 8306
 8307                                                    .children(self.render_dock(
 8308                                                        DockPosition::Right,
 8309                                                        &self.right_dock,
 8310                                                        window,
 8311                                                        cx,
 8312                                                    )),
 8313                                            )
 8314                                            .child(div().w_full().children(self.render_dock(
 8315                                                DockPosition::Bottom,
 8316                                                &self.bottom_dock,
 8317                                                window,
 8318                                                cx
 8319                                            ))),
 8320
 8321                                        BottomDockLayout::LeftAligned => div()
 8322                                            .flex()
 8323                                            .flex_row()
 8324                                            .h_full()
 8325                                            .child(
 8326                                                div()
 8327                                                    .flex()
 8328                                                    .flex_col()
 8329                                                    .flex_1()
 8330                                                    .h_full()
 8331                                                    .child(
 8332                                                        div()
 8333                                                            .flex()
 8334                                                            .flex_row()
 8335                                                            .flex_1()
 8336                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8337
 8338                                                            .child(
 8339                                                                div()
 8340                                                                    .flex()
 8341                                                                    .flex_col()
 8342                                                                    .flex_1()
 8343                                                                    .overflow_hidden()
 8344                                                                    .child(
 8345                                                                        h_flex()
 8346                                                                            .flex_1()
 8347                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8348                                                                            .child(self.center.render(
 8349                                                                                self.zoomed.as_ref(),
 8350                                                                                &PaneRenderContext {
 8351                                                                                    follower_states:
 8352                                                                                        &self.follower_states,
 8353                                                                                    active_call: self.active_call(),
 8354                                                                                    active_pane: &self.active_pane,
 8355                                                                                    app_state: &self.app_state,
 8356                                                                                    project: &self.project,
 8357                                                                                    workspace: &self.weak_self,
 8358                                                                                },
 8359                                                                                window,
 8360                                                                                cx,
 8361                                                                            ))
 8362                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8363                                                                    )
 8364                                                            )
 8365
 8366                                                    )
 8367                                                    .child(
 8368                                                        div()
 8369                                                            .w_full()
 8370                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8371                                                    ),
 8372                                            )
 8373                                            .children(self.render_dock(
 8374                                                DockPosition::Right,
 8375                                                &self.right_dock,
 8376                                                window,
 8377                                                cx,
 8378                                            )),
 8379                                        BottomDockLayout::RightAligned => div()
 8380                                            .flex()
 8381                                            .flex_row()
 8382                                            .h_full()
 8383                                            .children(self.render_dock(
 8384                                                DockPosition::Left,
 8385                                                &self.left_dock,
 8386                                                window,
 8387                                                cx,
 8388                                            ))
 8389
 8390                                            .child(
 8391                                                div()
 8392                                                    .flex()
 8393                                                    .flex_col()
 8394                                                    .flex_1()
 8395                                                    .h_full()
 8396                                                    .child(
 8397                                                        div()
 8398                                                            .flex()
 8399                                                            .flex_row()
 8400                                                            .flex_1()
 8401                                                            .child(
 8402                                                                div()
 8403                                                                    .flex()
 8404                                                                    .flex_col()
 8405                                                                    .flex_1()
 8406                                                                    .overflow_hidden()
 8407                                                                    .child(
 8408                                                                        h_flex()
 8409                                                                            .flex_1()
 8410                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8411                                                                            .child(self.center.render(
 8412                                                                                self.zoomed.as_ref(),
 8413                                                                                &PaneRenderContext {
 8414                                                                                    follower_states:
 8415                                                                                        &self.follower_states,
 8416                                                                                    active_call: self.active_call(),
 8417                                                                                    active_pane: &self.active_pane,
 8418                                                                                    app_state: &self.app_state,
 8419                                                                                    project: &self.project,
 8420                                                                                    workspace: &self.weak_self,
 8421                                                                                },
 8422                                                                                window,
 8423                                                                                cx,
 8424                                                                            ))
 8425                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8426                                                                    )
 8427                                                            )
 8428
 8429                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8430                                                    )
 8431                                                    .child(
 8432                                                        div()
 8433                                                            .w_full()
 8434                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8435                                                    ),
 8436                                            ),
 8437                                        BottomDockLayout::Contained => div()
 8438                                            .flex()
 8439                                            .flex_row()
 8440                                            .h_full()
 8441                                            .children(self.render_dock(
 8442                                                DockPosition::Left,
 8443                                                &self.left_dock,
 8444                                                window,
 8445                                                cx,
 8446                                            ))
 8447
 8448                                            .child(
 8449                                                div()
 8450                                                    .flex()
 8451                                                    .flex_col()
 8452                                                    .flex_1()
 8453                                                    .overflow_hidden()
 8454                                                    .child(
 8455                                                        h_flex()
 8456                                                            .flex_1()
 8457                                                            .when_some(paddings.0, |this, p| {
 8458                                                                this.child(p.border_r_1())
 8459                                                            })
 8460                                                            .child(self.center.render(
 8461                                                                self.zoomed.as_ref(),
 8462                                                                &PaneRenderContext {
 8463                                                                    follower_states:
 8464                                                                        &self.follower_states,
 8465                                                                    active_call: self.active_call(),
 8466                                                                    active_pane: &self.active_pane,
 8467                                                                    app_state: &self.app_state,
 8468                                                                    project: &self.project,
 8469                                                                    workspace: &self.weak_self,
 8470                                                                },
 8471                                                                window,
 8472                                                                cx,
 8473                                                            ))
 8474                                                            .when_some(paddings.1, |this, p| {
 8475                                                                this.child(p.border_l_1())
 8476                                                            }),
 8477                                                    )
 8478                                                    .children(self.render_dock(
 8479                                                        DockPosition::Bottom,
 8480                                                        &self.bottom_dock,
 8481                                                        window,
 8482                                                        cx,
 8483                                                    )),
 8484                                            )
 8485
 8486                                            .children(self.render_dock(
 8487                                                DockPosition::Right,
 8488                                                &self.right_dock,
 8489                                                window,
 8490                                                cx,
 8491                                            )),
 8492                                    }
 8493                                })
 8494                                .children(self.zoomed.as_ref().and_then(|view| {
 8495                                    let zoomed_view = view.upgrade()?;
 8496                                    let div = div()
 8497                                        .occlude()
 8498                                        .absolute()
 8499                                        .overflow_hidden()
 8500                                        .border_color(colors.border)
 8501                                        .bg(colors.background)
 8502                                        .child(zoomed_view)
 8503                                        .inset_0()
 8504                                        .shadow_lg();
 8505
 8506                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8507                                       return Some(div);
 8508                                    }
 8509
 8510                                    Some(match self.zoomed_position {
 8511                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8512                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8513                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8514                                        None => {
 8515                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8516                                        }
 8517                                    })
 8518                                }))
 8519                                .children(self.render_notifications(window, cx)),
 8520                        )
 8521                        .when(self.status_bar_visible(cx), |parent| {
 8522                            parent.child(self.status_bar.clone())
 8523                        })
 8524                        .child(self.toast_layer.clone()),
 8525                )
 8526    }
 8527}
 8528
 8529impl WorkspaceStore {
 8530    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8531        Self {
 8532            workspaces: Default::default(),
 8533            _subscriptions: vec![
 8534                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8535                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8536            ],
 8537            client,
 8538        }
 8539    }
 8540
 8541    pub fn update_followers(
 8542        &self,
 8543        project_id: Option<u64>,
 8544        update: proto::update_followers::Variant,
 8545        cx: &App,
 8546    ) -> Option<()> {
 8547        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8548        let room_id = active_call.0.room_id(cx)?;
 8549        self.client
 8550            .send(proto::UpdateFollowers {
 8551                room_id,
 8552                project_id,
 8553                variant: Some(update),
 8554            })
 8555            .log_err()
 8556    }
 8557
 8558    pub async fn handle_follow(
 8559        this: Entity<Self>,
 8560        envelope: TypedEnvelope<proto::Follow>,
 8561        mut cx: AsyncApp,
 8562    ) -> Result<proto::FollowResponse> {
 8563        this.update(&mut cx, |this, cx| {
 8564            let follower = Follower {
 8565                project_id: envelope.payload.project_id,
 8566                peer_id: envelope.original_sender_id()?,
 8567            };
 8568
 8569            let mut response = proto::FollowResponse::default();
 8570
 8571            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8572                let Some(workspace) = weak_workspace.upgrade() else {
 8573                    return false;
 8574                };
 8575                window_handle
 8576                    .update(cx, |_, window, cx| {
 8577                        workspace.update(cx, |workspace, cx| {
 8578                            let handler_response =
 8579                                workspace.handle_follow(follower.project_id, window, cx);
 8580                            if let Some(active_view) = handler_response.active_view
 8581                                && workspace.project.read(cx).remote_id() == follower.project_id
 8582                            {
 8583                                response.active_view = Some(active_view)
 8584                            }
 8585                        });
 8586                    })
 8587                    .is_ok()
 8588            });
 8589
 8590            Ok(response)
 8591        })
 8592    }
 8593
 8594    async fn handle_update_followers(
 8595        this: Entity<Self>,
 8596        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8597        mut cx: AsyncApp,
 8598    ) -> Result<()> {
 8599        let leader_id = envelope.original_sender_id()?;
 8600        let update = envelope.payload;
 8601
 8602        this.update(&mut cx, |this, cx| {
 8603            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8604                let Some(workspace) = weak_workspace.upgrade() else {
 8605                    return false;
 8606                };
 8607                window_handle
 8608                    .update(cx, |_, window, cx| {
 8609                        workspace.update(cx, |workspace, cx| {
 8610                            let project_id = workspace.project.read(cx).remote_id();
 8611                            if update.project_id != project_id && update.project_id.is_some() {
 8612                                return;
 8613                            }
 8614                            workspace.handle_update_followers(
 8615                                leader_id,
 8616                                update.clone(),
 8617                                window,
 8618                                cx,
 8619                            );
 8620                        });
 8621                    })
 8622                    .is_ok()
 8623            });
 8624            Ok(())
 8625        })
 8626    }
 8627
 8628    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8629        self.workspaces.iter().map(|(_, weak)| weak)
 8630    }
 8631
 8632    pub fn workspaces_with_windows(
 8633        &self,
 8634    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8635        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8636    }
 8637}
 8638
 8639impl ViewId {
 8640    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8641        Ok(Self {
 8642            creator: message
 8643                .creator
 8644                .map(CollaboratorId::PeerId)
 8645                .context("creator is missing")?,
 8646            id: message.id,
 8647        })
 8648    }
 8649
 8650    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8651        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8652            Some(proto::ViewId {
 8653                creator: Some(peer_id),
 8654                id: self.id,
 8655            })
 8656        } else {
 8657            None
 8658        }
 8659    }
 8660}
 8661
 8662impl FollowerState {
 8663    fn pane(&self) -> &Entity<Pane> {
 8664        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8665    }
 8666}
 8667
 8668pub trait WorkspaceHandle {
 8669    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8670}
 8671
 8672impl WorkspaceHandle for Entity<Workspace> {
 8673    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8674        self.read(cx)
 8675            .worktrees(cx)
 8676            .flat_map(|worktree| {
 8677                let worktree_id = worktree.read(cx).id();
 8678                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8679                    worktree_id,
 8680                    path: f.path.clone(),
 8681                })
 8682            })
 8683            .collect::<Vec<_>>()
 8684    }
 8685}
 8686
 8687pub async fn last_opened_workspace_location(
 8688    db: &WorkspaceDb,
 8689    fs: &dyn fs::Fs,
 8690) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8691    db.last_workspace(fs)
 8692        .await
 8693        .log_err()
 8694        .flatten()
 8695        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8696}
 8697
 8698pub async fn last_session_workspace_locations(
 8699    db: &WorkspaceDb,
 8700    last_session_id: &str,
 8701    last_session_window_stack: Option<Vec<WindowId>>,
 8702    fs: &dyn fs::Fs,
 8703) -> Option<Vec<SessionWorkspace>> {
 8704    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8705        .await
 8706        .log_err()
 8707}
 8708
 8709pub async fn restore_multiworkspace(
 8710    multi_workspace: SerializedMultiWorkspace,
 8711    app_state: Arc<AppState>,
 8712    cx: &mut AsyncApp,
 8713) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8714    let SerializedMultiWorkspace {
 8715        active_workspace,
 8716        state,
 8717    } = multi_workspace;
 8718
 8719    let workspace_result = if active_workspace.paths.is_empty() {
 8720        cx.update(|cx| {
 8721            open_workspace_by_id(active_workspace.workspace_id, app_state.clone(), None, cx)
 8722        })
 8723        .await
 8724    } else {
 8725        cx.update(|cx| {
 8726            Workspace::new_local(
 8727                active_workspace.paths.paths().to_vec(),
 8728                app_state.clone(),
 8729                None,
 8730                None,
 8731                None,
 8732                OpenMode::Activate,
 8733                cx,
 8734            )
 8735        })
 8736        .await
 8737        .map(|result| result.window)
 8738    };
 8739
 8740    let window_handle = match workspace_result {
 8741        Ok(handle) => handle,
 8742        Err(err) => {
 8743            log::error!("Failed to restore active workspace: {err:#}");
 8744
 8745            let mut fallback_handle = None;
 8746            for key in &state.project_groups {
 8747                let key: ProjectGroupKey = key.clone().into();
 8748                let paths = key.path_list().paths().to_vec();
 8749                match cx
 8750                    .update(|cx| {
 8751                        Workspace::new_local(
 8752                            paths,
 8753                            app_state.clone(),
 8754                            None,
 8755                            None,
 8756                            None,
 8757                            OpenMode::Activate,
 8758                            cx,
 8759                        )
 8760                    })
 8761                    .await
 8762                {
 8763                    Ok(OpenResult { window, .. }) => {
 8764                        fallback_handle = Some(window);
 8765                        break;
 8766                    }
 8767                    Err(fallback_err) => {
 8768                        log::error!("Fallback project group also failed: {fallback_err:#}");
 8769                    }
 8770                }
 8771            }
 8772
 8773            fallback_handle.ok_or(err)?
 8774        }
 8775    };
 8776
 8777    apply_restored_multiworkspace_state(window_handle, &state, app_state.fs.clone(), cx).await;
 8778
 8779    window_handle
 8780        .update(cx, |_, window, _cx| {
 8781            window.activate_window();
 8782        })
 8783        .ok();
 8784
 8785    Ok(window_handle)
 8786}
 8787
 8788pub async fn apply_restored_multiworkspace_state(
 8789    window_handle: WindowHandle<MultiWorkspace>,
 8790    state: &MultiWorkspaceState,
 8791    fs: Arc<dyn fs::Fs>,
 8792    cx: &mut AsyncApp,
 8793) {
 8794    let MultiWorkspaceState {
 8795        sidebar_open,
 8796        project_groups,
 8797        sidebar_state,
 8798        ..
 8799    } = state;
 8800
 8801    if !project_groups.is_empty() {
 8802        // Resolve linked worktree paths to their main repo paths so
 8803        // stale keys from previous sessions get normalized and deduped.
 8804        let mut resolved_groups: Vec<SerializedProjectGroupState> = Vec::new();
 8805        for serialized in project_groups.iter().cloned() {
 8806            let SerializedProjectGroupState { key, expanded } = serialized.into_restored_state();
 8807            if key.path_list().paths().is_empty() {
 8808                continue;
 8809            }
 8810            let mut resolved_paths = Vec::new();
 8811            for path in key.path_list().paths() {
 8812                if key.host().is_none()
 8813                    && let Some(common_dir) =
 8814                        project::discover_root_repo_common_dir(path, fs.as_ref()).await
 8815                {
 8816                    let main_path = common_dir.parent().unwrap_or(&common_dir);
 8817                    resolved_paths.push(main_path.to_path_buf());
 8818                } else {
 8819                    resolved_paths.push(path.to_path_buf());
 8820                }
 8821            }
 8822            let resolved = ProjectGroupKey::new(key.host(), PathList::new(&resolved_paths));
 8823            if !resolved_groups.iter().any(|g| g.key == resolved) {
 8824                resolved_groups.push(SerializedProjectGroupState {
 8825                    key: resolved,
 8826                    expanded,
 8827                });
 8828            }
 8829        }
 8830
 8831        window_handle
 8832            .update(cx, |multi_workspace, _window, cx| {
 8833                multi_workspace.restore_project_groups(resolved_groups, cx);
 8834            })
 8835            .ok();
 8836    }
 8837
 8838    if *sidebar_open {
 8839        window_handle
 8840            .update(cx, |multi_workspace, _, cx| {
 8841                multi_workspace.restore_open_sidebar(cx);
 8842            })
 8843            .ok();
 8844    }
 8845
 8846    if let Some(sidebar_state) = sidebar_state {
 8847        window_handle
 8848            .update(cx, |multi_workspace, window, cx| {
 8849                if let Some(sidebar) = multi_workspace.sidebar() {
 8850                    sidebar.restore_serialized_state(sidebar_state, window, cx);
 8851                }
 8852                multi_workspace.serialize(cx);
 8853            })
 8854            .ok();
 8855    }
 8856}
 8857
 8858actions!(
 8859    collab,
 8860    [
 8861        /// Opens the channel notes for the current call.
 8862        ///
 8863        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8864        /// channel in the collab panel.
 8865        ///
 8866        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8867        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8868        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8869        OpenChannelNotes,
 8870        /// Mutes your microphone.
 8871        Mute,
 8872        /// Deafens yourself (mute both microphone and speakers).
 8873        Deafen,
 8874        /// Leaves the current call.
 8875        LeaveCall,
 8876        /// Shares the current project with collaborators.
 8877        ShareProject,
 8878        /// Shares your screen with collaborators.
 8879        ScreenShare,
 8880        /// Copies the current room name and session id for debugging purposes.
 8881        CopyRoomId,
 8882    ]
 8883);
 8884
 8885/// Opens the channel notes for a specific channel by its ID.
 8886#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8887#[action(namespace = collab)]
 8888#[serde(deny_unknown_fields)]
 8889pub struct OpenChannelNotesById {
 8890    pub channel_id: u64,
 8891}
 8892
 8893actions!(
 8894    zed,
 8895    [
 8896        /// Opens the Zed log file.
 8897        OpenLog,
 8898        /// Reveals the Zed log file in the system file manager.
 8899        RevealLogInFileManager
 8900    ]
 8901);
 8902
 8903async fn join_channel_internal(
 8904    channel_id: ChannelId,
 8905    app_state: &Arc<AppState>,
 8906    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8907    requesting_workspace: Option<WeakEntity<Workspace>>,
 8908    active_call: &dyn AnyActiveCall,
 8909    cx: &mut AsyncApp,
 8910) -> Result<bool> {
 8911    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8912        if !active_call.is_in_room(cx) {
 8913            return (false, false);
 8914        }
 8915
 8916        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8917        let should_prompt = active_call.is_sharing_project(cx)
 8918            && active_call.has_remote_participants(cx)
 8919            && !already_in_channel;
 8920        (should_prompt, already_in_channel)
 8921    });
 8922
 8923    if already_in_channel {
 8924        let task = cx.update(|cx| {
 8925            if let Some((project, host)) = active_call.most_active_project(cx) {
 8926                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8927            } else {
 8928                None
 8929            }
 8930        });
 8931        if let Some(task) = task {
 8932            task.await?;
 8933        }
 8934        return anyhow::Ok(true);
 8935    }
 8936
 8937    if should_prompt {
 8938        if let Some(multi_workspace) = requesting_window {
 8939            let answer = multi_workspace
 8940                .update(cx, |_, window, cx| {
 8941                    window.prompt(
 8942                        PromptLevel::Warning,
 8943                        "Do you want to switch channels?",
 8944                        Some("Leaving this call will unshare your current project."),
 8945                        &["Yes, Join Channel", "Cancel"],
 8946                        cx,
 8947                    )
 8948                })?
 8949                .await;
 8950
 8951            if answer == Ok(1) {
 8952                return Ok(false);
 8953            }
 8954        } else {
 8955            return Ok(false);
 8956        }
 8957    }
 8958
 8959    let client = cx.update(|cx| active_call.client(cx));
 8960
 8961    let mut client_status = client.status();
 8962
 8963    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8964    'outer: loop {
 8965        let Some(status) = client_status.recv().await else {
 8966            anyhow::bail!("error connecting");
 8967        };
 8968
 8969        match status {
 8970            Status::Connecting
 8971            | Status::Authenticating
 8972            | Status::Authenticated
 8973            | Status::Reconnecting
 8974            | Status::Reauthenticating
 8975            | Status::Reauthenticated => continue,
 8976            Status::Connected { .. } => break 'outer,
 8977            Status::SignedOut | Status::AuthenticationError => {
 8978                return Err(ErrorCode::SignedOut.into());
 8979            }
 8980            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8981            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8982                return Err(ErrorCode::Disconnected.into());
 8983            }
 8984        }
 8985    }
 8986
 8987    let joined = cx
 8988        .update(|cx| active_call.join_channel(channel_id, cx))
 8989        .await?;
 8990
 8991    if !joined {
 8992        return anyhow::Ok(true);
 8993    }
 8994
 8995    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8996
 8997    let task = cx.update(|cx| {
 8998        if let Some((project, host)) = active_call.most_active_project(cx) {
 8999            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 9000        }
 9001
 9002        // If you are the first to join a channel, see if you should share your project.
 9003        if !active_call.has_remote_participants(cx)
 9004            && !active_call.local_participant_is_guest(cx)
 9005            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 9006        {
 9007            let project = workspace.update(cx, |workspace, cx| {
 9008                let project = workspace.project.read(cx);
 9009
 9010                if !active_call.share_on_join(cx) {
 9011                    return None;
 9012                }
 9013
 9014                if (project.is_local() || project.is_via_remote_server())
 9015                    && project.visible_worktrees(cx).any(|tree| {
 9016                        tree.read(cx)
 9017                            .root_entry()
 9018                            .is_some_and(|entry| entry.is_dir())
 9019                    })
 9020                {
 9021                    Some(workspace.project.clone())
 9022                } else {
 9023                    None
 9024                }
 9025            });
 9026            if let Some(project) = project {
 9027                let share_task = active_call.share_project(project, cx);
 9028                return Some(cx.spawn(async move |_cx| -> Result<()> {
 9029                    share_task.await?;
 9030                    Ok(())
 9031                }));
 9032            }
 9033        }
 9034
 9035        None
 9036    });
 9037    if let Some(task) = task {
 9038        task.await?;
 9039        return anyhow::Ok(true);
 9040    }
 9041    anyhow::Ok(false)
 9042}
 9043
 9044pub fn join_channel(
 9045    channel_id: ChannelId,
 9046    app_state: Arc<AppState>,
 9047    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9048    requesting_workspace: Option<WeakEntity<Workspace>>,
 9049    cx: &mut App,
 9050) -> Task<Result<()>> {
 9051    let active_call = GlobalAnyActiveCall::global(cx).clone();
 9052    cx.spawn(async move |cx| {
 9053        let result = join_channel_internal(
 9054            channel_id,
 9055            &app_state,
 9056            requesting_window,
 9057            requesting_workspace,
 9058            &*active_call.0,
 9059            cx,
 9060        )
 9061        .await;
 9062
 9063        // join channel succeeded, and opened a window
 9064        if matches!(result, Ok(true)) {
 9065            return anyhow::Ok(());
 9066        }
 9067
 9068        // find an existing workspace to focus and show call controls
 9069        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 9070        if active_window.is_none() {
 9071            // no open workspaces, make one to show the error in (blergh)
 9072            let OpenResult {
 9073                window: window_handle,
 9074                ..
 9075            } = cx
 9076                .update(|cx| {
 9077                    Workspace::new_local(
 9078                        vec![],
 9079                        app_state.clone(),
 9080                        requesting_window,
 9081                        None,
 9082                        None,
 9083                        OpenMode::Activate,
 9084                        cx,
 9085                    )
 9086                })
 9087                .await?;
 9088
 9089            window_handle
 9090                .update(cx, |_, window, _cx| {
 9091                    window.activate_window();
 9092                })
 9093                .ok();
 9094
 9095            if result.is_ok() {
 9096                cx.update(|cx| {
 9097                    cx.dispatch_action(&OpenChannelNotes);
 9098                });
 9099            }
 9100
 9101            active_window = Some(window_handle);
 9102        }
 9103
 9104        if let Err(err) = result {
 9105            log::error!("failed to join channel: {}", err);
 9106            if let Some(active_window) = active_window {
 9107                active_window
 9108                    .update(cx, |_, window, cx| {
 9109                        let detail: SharedString = match err.error_code() {
 9110                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 9111                            ErrorCode::UpgradeRequired => concat!(
 9112                                "Your are running an unsupported version of Zed. ",
 9113                                "Please update to continue."
 9114                            )
 9115                            .into(),
 9116                            ErrorCode::NoSuchChannel => concat!(
 9117                                "No matching channel was found. ",
 9118                                "Please check the link and try again."
 9119                            )
 9120                            .into(),
 9121                            ErrorCode::Forbidden => concat!(
 9122                                "This channel is private, and you do not have access. ",
 9123                                "Please ask someone to add you and try again."
 9124                            )
 9125                            .into(),
 9126                            ErrorCode::Disconnected => {
 9127                                "Please check your internet connection and try again.".into()
 9128                            }
 9129                            _ => format!("{}\n\nPlease try again.", err).into(),
 9130                        };
 9131                        window.prompt(
 9132                            PromptLevel::Critical,
 9133                            "Failed to join channel",
 9134                            Some(&detail),
 9135                            &["Ok"],
 9136                            cx,
 9137                        )
 9138                    })?
 9139                    .await
 9140                    .ok();
 9141            }
 9142        }
 9143
 9144        // return ok, we showed the error to the user.
 9145        anyhow::Ok(())
 9146    })
 9147}
 9148
 9149pub async fn get_any_active_multi_workspace(
 9150    app_state: Arc<AppState>,
 9151    mut cx: AsyncApp,
 9152) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 9153    // find an existing workspace to focus and show call controls
 9154    let active_window = activate_any_workspace_window(&mut cx);
 9155    if active_window.is_none() {
 9156        cx.update(|cx| {
 9157            Workspace::new_local(
 9158                vec![],
 9159                app_state.clone(),
 9160                None,
 9161                None,
 9162                None,
 9163                OpenMode::Activate,
 9164                cx,
 9165            )
 9166        })
 9167        .await?;
 9168    }
 9169    activate_any_workspace_window(&mut cx).context("could not open zed")
 9170}
 9171
 9172fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 9173    cx.update(|cx| {
 9174        if let Some(workspace_window) = cx
 9175            .active_window()
 9176            .and_then(|window| window.downcast::<MultiWorkspace>())
 9177        {
 9178            return Some(workspace_window);
 9179        }
 9180
 9181        for window in cx.windows() {
 9182            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 9183                workspace_window
 9184                    .update(cx, |_, window, _| window.activate_window())
 9185                    .ok();
 9186                return Some(workspace_window);
 9187            }
 9188        }
 9189        None
 9190    })
 9191}
 9192
 9193pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 9194    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 9195}
 9196
 9197pub fn workspace_windows_for_location(
 9198    serialized_location: &SerializedWorkspaceLocation,
 9199    cx: &App,
 9200) -> Vec<WindowHandle<MultiWorkspace>> {
 9201    cx.windows()
 9202        .into_iter()
 9203        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9204        .filter(|multi_workspace| {
 9205            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 9206                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 9207                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 9208                }
 9209                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 9210                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 9211                    a.distro_name == b.distro_name
 9212                }
 9213                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 9214                    a.container_id == b.container_id
 9215                }
 9216                #[cfg(any(test, feature = "test-support"))]
 9217                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 9218                    a.id == b.id
 9219                }
 9220                _ => false,
 9221            };
 9222
 9223            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 9224                multi_workspace.workspaces().any(|workspace| {
 9225                    match workspace.read(cx).workspace_location(cx) {
 9226                        WorkspaceLocation::Location(location, _) => {
 9227                            match (&location, serialized_location) {
 9228                                (
 9229                                    SerializedWorkspaceLocation::Local,
 9230                                    SerializedWorkspaceLocation::Local,
 9231                                ) => true,
 9232                                (
 9233                                    SerializedWorkspaceLocation::Remote(a),
 9234                                    SerializedWorkspaceLocation::Remote(b),
 9235                                ) => same_host(a, b),
 9236                                _ => false,
 9237                            }
 9238                        }
 9239                        _ => false,
 9240                    }
 9241                })
 9242            })
 9243        })
 9244        .collect()
 9245}
 9246
 9247pub async fn find_existing_workspace(
 9248    abs_paths: &[PathBuf],
 9249    open_options: &OpenOptions,
 9250    location: &SerializedWorkspaceLocation,
 9251    cx: &mut AsyncApp,
 9252) -> (
 9253    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 9254    OpenVisible,
 9255) {
 9256    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 9257    let mut open_visible = OpenVisible::All;
 9258    let mut best_match = None;
 9259
 9260    if open_options.workspace_matching != WorkspaceMatching::None {
 9261        cx.update(|cx| {
 9262            for window in workspace_windows_for_location(location, cx) {
 9263                if let Ok(multi_workspace) = window.read(cx) {
 9264                    for workspace in multi_workspace.workspaces() {
 9265                        let project = workspace.read(cx).project.read(cx);
 9266                        let m = project.visibility_for_paths(
 9267                            abs_paths,
 9268                            open_options.workspace_matching != WorkspaceMatching::MatchSubdirectory,
 9269                            cx,
 9270                        );
 9271                        if m > best_match {
 9272                            existing = Some((window, workspace.clone()));
 9273                            best_match = m;
 9274                        } else if best_match.is_none()
 9275                            && open_options.workspace_matching
 9276                                == WorkspaceMatching::MatchSubdirectory
 9277                        {
 9278                            existing = Some((window, workspace.clone()))
 9279                        }
 9280                    }
 9281                }
 9282            }
 9283        });
 9284
 9285        let all_paths_are_files = existing
 9286            .as_ref()
 9287            .and_then(|(_, target_workspace)| {
 9288                cx.update(|cx| {
 9289                    let workspace = target_workspace.read(cx);
 9290                    let project = workspace.project.read(cx);
 9291                    let path_style = workspace.path_style(cx);
 9292                    Some(!abs_paths.iter().any(|path| {
 9293                        let path = util::paths::SanitizedPath::new(path);
 9294                        project.worktrees(cx).any(|worktree| {
 9295                            let worktree = worktree.read(cx);
 9296                            let abs_path = worktree.abs_path();
 9297                            path_style
 9298                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9299                                .and_then(|rel| worktree.entry_for_path(&rel))
 9300                                .is_some_and(|e| e.is_dir())
 9301                        })
 9302                    }))
 9303                })
 9304            })
 9305            .unwrap_or(false);
 9306
 9307        if open_options.wait && existing.is_some() && all_paths_are_files {
 9308            cx.update(|cx| {
 9309                let windows = workspace_windows_for_location(location, cx);
 9310                let window = cx
 9311                    .active_window()
 9312                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9313                    .filter(|window| windows.contains(window))
 9314                    .or_else(|| windows.into_iter().next());
 9315                if let Some(window) = window {
 9316                    if let Ok(multi_workspace) = window.read(cx) {
 9317                        let active_workspace = multi_workspace.workspace().clone();
 9318                        existing = Some((window, active_workspace));
 9319                        open_visible = OpenVisible::None;
 9320                    }
 9321                }
 9322            });
 9323        }
 9324    }
 9325    (existing, open_visible)
 9326}
 9327
 9328/// Controls whether to reuse an existing workspace whose worktrees contain the
 9329/// given paths, and how broadly to match.
 9330#[derive(Clone, Debug, Default, PartialEq, Eq)]
 9331pub enum WorkspaceMatching {
 9332    /// Always open a new workspace. No matching against existing worktrees.
 9333    None,
 9334    /// Match paths against existing worktree roots and files within them.
 9335    #[default]
 9336    MatchExact,
 9337    /// Match paths against existing worktrees including subdirectories, and
 9338    /// fall back to any existing window if no worktree matched.
 9339    ///
 9340    /// For example, `zed -a foo/bar` will activate the `bar` workspace if it
 9341    /// exists, otherwise it will open a new window with `foo/bar` as the root.
 9342    MatchSubdirectory,
 9343}
 9344
 9345#[derive(Clone)]
 9346pub struct OpenOptions {
 9347    pub visible: Option<OpenVisible>,
 9348    pub focus: Option<bool>,
 9349    pub workspace_matching: WorkspaceMatching,
 9350    /// Whether to add unmatched directories to the existing window's sidebar
 9351    /// rather than opening a new window. Defaults to true, matching the default
 9352    /// `cli_default_open_behavior` setting.
 9353    pub add_dirs_to_sidebar: bool,
 9354    pub wait: bool,
 9355    pub requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9356    pub open_mode: OpenMode,
 9357    pub env: Option<HashMap<String, String>>,
 9358    pub open_in_dev_container: bool,
 9359}
 9360
 9361impl Default for OpenOptions {
 9362    fn default() -> Self {
 9363        Self {
 9364            visible: None,
 9365            focus: None,
 9366            workspace_matching: WorkspaceMatching::default(),
 9367            add_dirs_to_sidebar: true,
 9368            wait: false,
 9369            requesting_window: None,
 9370            open_mode: OpenMode::default(),
 9371            env: None,
 9372            open_in_dev_container: false,
 9373        }
 9374    }
 9375}
 9376
 9377impl OpenOptions {
 9378    fn should_reuse_existing_window(&self) -> bool {
 9379        self.workspace_matching != WorkspaceMatching::None && self.open_mode != OpenMode::NewWindow
 9380    }
 9381}
 9382
 9383/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9384/// or [`Workspace::open_workspace_for_paths`].
 9385pub struct OpenResult {
 9386    pub window: WindowHandle<MultiWorkspace>,
 9387    pub workspace: Entity<Workspace>,
 9388    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9389}
 9390
 9391/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9392pub fn open_workspace_by_id(
 9393    workspace_id: WorkspaceId,
 9394    app_state: Arc<AppState>,
 9395    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9396    cx: &mut App,
 9397) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9398    let project_handle = Project::local(
 9399        app_state.client.clone(),
 9400        app_state.node_runtime.clone(),
 9401        app_state.user_store.clone(),
 9402        app_state.languages.clone(),
 9403        app_state.fs.clone(),
 9404        None,
 9405        project::LocalProjectFlags {
 9406            init_worktree_trust: true,
 9407            ..project::LocalProjectFlags::default()
 9408        },
 9409        cx,
 9410    );
 9411
 9412    let db = WorkspaceDb::global(cx);
 9413    let kvp = db::kvp::KeyValueStore::global(cx);
 9414    cx.spawn(async move |cx| {
 9415        let serialized_workspace = db
 9416            .workspace_for_id(workspace_id)
 9417            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9418
 9419        let centered_layout = serialized_workspace.centered_layout;
 9420
 9421        let (window, workspace) = if let Some(window) = requesting_window {
 9422            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9423                let workspace = cx.new(|cx| {
 9424                    let mut workspace = Workspace::new(
 9425                        Some(workspace_id),
 9426                        project_handle.clone(),
 9427                        app_state.clone(),
 9428                        window,
 9429                        cx,
 9430                    );
 9431                    workspace.centered_layout = centered_layout;
 9432                    workspace
 9433                });
 9434                multi_workspace.add(workspace.clone(), &*window, cx);
 9435                workspace
 9436            })?;
 9437            (window, workspace)
 9438        } else {
 9439            let window_bounds_override = window_bounds_env_override();
 9440
 9441            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9442                (Some(WindowBounds::Windowed(bounds)), None)
 9443            } else if let Some(display) = serialized_workspace.display
 9444                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9445            {
 9446                (Some(bounds.0), Some(display))
 9447            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9448                (Some(bounds), Some(display))
 9449            } else {
 9450                (None, None)
 9451            };
 9452
 9453            let options = cx.update(|cx| {
 9454                let mut options = (app_state.build_window_options)(display, cx);
 9455                options.window_bounds = window_bounds;
 9456                options
 9457            });
 9458
 9459            let window = cx.open_window(options, {
 9460                let app_state = app_state.clone();
 9461                let project_handle = project_handle.clone();
 9462                move |window, cx| {
 9463                    let workspace = cx.new(|cx| {
 9464                        let mut workspace = Workspace::new(
 9465                            Some(workspace_id),
 9466                            project_handle,
 9467                            app_state,
 9468                            window,
 9469                            cx,
 9470                        );
 9471                        workspace.centered_layout = centered_layout;
 9472                        workspace
 9473                    });
 9474                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9475                }
 9476            })?;
 9477
 9478            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9479                multi_workspace.workspace().clone()
 9480            })?;
 9481
 9482            (window, workspace)
 9483        };
 9484
 9485        notify_if_database_failed(window, cx);
 9486
 9487        // Restore items from the serialized workspace
 9488        window
 9489            .update(cx, |_, window, cx| {
 9490                workspace.update(cx, |_workspace, cx| {
 9491                    open_items(Some(serialized_workspace), vec![], window, cx)
 9492                })
 9493            })?
 9494            .await?;
 9495
 9496        window.update(cx, |_, window, cx| {
 9497            workspace.update(cx, |workspace, cx| {
 9498                workspace.serialize_workspace(window, cx);
 9499            });
 9500        })?;
 9501
 9502        Ok(window)
 9503    })
 9504}
 9505
 9506#[allow(clippy::type_complexity)]
 9507pub fn open_paths(
 9508    abs_paths: &[PathBuf],
 9509    app_state: Arc<AppState>,
 9510    mut open_options: OpenOptions,
 9511    cx: &mut App,
 9512) -> Task<anyhow::Result<OpenResult>> {
 9513    let abs_paths = abs_paths.to_vec();
 9514    #[cfg(target_os = "windows")]
 9515    let wsl_path = abs_paths
 9516        .iter()
 9517        .find_map(|p| util::paths::WslPath::from_path(p));
 9518
 9519    cx.spawn(async move |cx| {
 9520        let (mut existing, mut open_visible) = find_existing_workspace(
 9521            &abs_paths,
 9522            &open_options,
 9523            &SerializedWorkspaceLocation::Local,
 9524            cx,
 9525        )
 9526        .await;
 9527
 9528        // Fallback: if no workspace contains the paths and all paths are files,
 9529        // prefer an existing local workspace window (active window first).
 9530        if open_options.should_reuse_existing_window() && existing.is_none() {
 9531            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9532            let all_metadatas = futures::future::join_all(all_paths)
 9533                .await
 9534                .into_iter()
 9535                .filter_map(|result| result.ok().flatten());
 9536
 9537            if all_metadatas.into_iter().all(|file| !file.is_dir) {
 9538                cx.update(|cx| {
 9539                    let windows = workspace_windows_for_location(
 9540                        &SerializedWorkspaceLocation::Local,
 9541                        cx,
 9542                    );
 9543                    let window = cx
 9544                        .active_window()
 9545                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9546                        .filter(|window| windows.contains(window))
 9547                        .or_else(|| windows.into_iter().next());
 9548                    if let Some(window) = window {
 9549                        if let Ok(multi_workspace) = window.read(cx) {
 9550                            let active_workspace = multi_workspace.workspace().clone();
 9551                            existing = Some((window, active_workspace));
 9552                            open_visible = OpenVisible::None;
 9553                        }
 9554                    }
 9555                });
 9556            }
 9557        }
 9558
 9559        // Fallback for directories: when no flag is specified and no existing
 9560        // workspace matched, check the user's setting to decide whether to add
 9561        // the directory as a new workspace in the active window's MultiWorkspace
 9562        // or open a new window.
 9563        // Skip when requesting_window is already set: the caller (e.g.
 9564        // open_workspace_for_paths reusing an empty window) already chose the
 9565        // target window, so we must not open the sidebar as a side-effect.
 9566        if open_options.should_reuse_existing_window()
 9567            && existing.is_none()
 9568            && open_options.requesting_window.is_none()
 9569        {
 9570            let use_existing_window = open_options.add_dirs_to_sidebar;
 9571
 9572            if use_existing_window {
 9573                let target_window = cx.update(|cx| {
 9574                    let windows = workspace_windows_for_location(
 9575                        &SerializedWorkspaceLocation::Local,
 9576                        cx,
 9577                    );
 9578                    let window = cx
 9579                        .active_window()
 9580                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9581                        .filter(|window| windows.contains(window))
 9582                        .or_else(|| windows.into_iter().next());
 9583                    window.filter(|window| {
 9584                        window
 9585                            .read(cx)
 9586                            .is_ok_and(|mw| mw.multi_workspace_enabled(cx))
 9587                    })
 9588                });
 9589
 9590                if let Some(window) = target_window {
 9591                    open_options.requesting_window = Some(window);
 9592                    window
 9593                        .update(cx, |multi_workspace, _, cx| {
 9594                            multi_workspace.open_sidebar(cx);
 9595                        })
 9596                        .log_err();
 9597                }
 9598            }
 9599        }
 9600
 9601        let open_in_dev_container = open_options.open_in_dev_container;
 9602
 9603        let result = if let Some((existing, target_workspace)) = existing {
 9604            let open_task = existing
 9605                .update(cx, |multi_workspace, window, cx| {
 9606                    window.activate_window();
 9607                    multi_workspace.activate(target_workspace.clone(), window, cx);
 9608                    target_workspace.update(cx, |workspace, cx| {
 9609                        if open_in_dev_container {
 9610                            workspace.set_open_in_dev_container(true);
 9611                        }
 9612                        workspace.open_paths(
 9613                            abs_paths,
 9614                            OpenOptions {
 9615                                visible: Some(open_visible),
 9616                                ..Default::default()
 9617                            },
 9618                            None,
 9619                            window,
 9620                            cx,
 9621                        )
 9622                    })
 9623                })?
 9624                .await;
 9625
 9626            _ = existing.update(cx, |multi_workspace, _, cx| {
 9627                let workspace = multi_workspace.workspace().clone();
 9628                workspace.update(cx, |workspace, cx| {
 9629                    for item in open_task.iter().flatten() {
 9630                        if let Err(e) = item {
 9631                            workspace.show_error(&e, cx);
 9632                        }
 9633                    }
 9634                });
 9635            });
 9636
 9637            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9638        } else {
 9639            let init = if open_in_dev_container {
 9640                Some(Box::new(|workspace: &mut Workspace, _window: &mut Window, _cx: &mut Context<Workspace>| {
 9641                    workspace.set_open_in_dev_container(true);
 9642                }) as Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>)
 9643            } else {
 9644                None
 9645            };
 9646            let result = cx
 9647                .update(move |cx| {
 9648                    Workspace::new_local(
 9649                        abs_paths,
 9650                        app_state.clone(),
 9651                        open_options.requesting_window,
 9652                        open_options.env,
 9653                        init,
 9654                        open_options.open_mode,
 9655                        cx,
 9656                    )
 9657                })
 9658                .await;
 9659
 9660            if let Ok(ref result) = result {
 9661                result.window
 9662                    .update(cx, |_, window, _cx| {
 9663                        window.activate_window();
 9664                    })
 9665                    .log_err();
 9666            }
 9667
 9668            result
 9669        };
 9670
 9671        #[cfg(target_os = "windows")]
 9672        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9673            && let Ok(ref result) = result
 9674        {
 9675            result.window
 9676                .update(cx, move |multi_workspace, _window, cx| {
 9677                    struct OpenInWsl;
 9678                    let workspace = multi_workspace.workspace().clone();
 9679                    workspace.update(cx, |workspace, cx| {
 9680                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9681                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9682                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9683                            cx.new(move |cx| {
 9684                                MessageNotification::new(msg, cx)
 9685                                    .primary_message("Open in WSL")
 9686                                    .primary_icon(IconName::FolderOpen)
 9687                                    .primary_on_click(move |window, cx| {
 9688                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9689                                                distro: remote::WslConnectionOptions {
 9690                                                        distro_name: distro.clone(),
 9691                                                    user: None,
 9692                                                },
 9693                                                paths: vec![path.clone().into()],
 9694                                            }), cx)
 9695                                    })
 9696                            })
 9697                        });
 9698                    });
 9699                })
 9700                .unwrap();
 9701        };
 9702        result
 9703    })
 9704}
 9705
 9706pub fn open_new(
 9707    open_options: OpenOptions,
 9708    app_state: Arc<AppState>,
 9709    cx: &mut App,
 9710    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9711) -> Task<anyhow::Result<()>> {
 9712    let addition = open_options.open_mode;
 9713    let task = Workspace::new_local(
 9714        Vec::new(),
 9715        app_state,
 9716        open_options.requesting_window,
 9717        open_options.env,
 9718        Some(Box::new(init)),
 9719        addition,
 9720        cx,
 9721    );
 9722    cx.spawn(async move |cx| {
 9723        let OpenResult { window, .. } = task.await?;
 9724        window
 9725            .update(cx, |_, window, _cx| {
 9726                window.activate_window();
 9727            })
 9728            .ok();
 9729        Ok(())
 9730    })
 9731}
 9732
 9733pub fn create_and_open_local_file(
 9734    path: &'static Path,
 9735    window: &mut Window,
 9736    cx: &mut Context<Workspace>,
 9737    default_content: impl 'static + Send + FnOnce() -> Rope,
 9738) -> Task<Result<Box<dyn ItemHandle>>> {
 9739    cx.spawn_in(window, async move |workspace, cx| {
 9740        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9741        if !fs.is_file(path).await {
 9742            fs.create_file(path, Default::default()).await?;
 9743            fs.save(path, &default_content(), Default::default())
 9744                .await?;
 9745        }
 9746
 9747        workspace
 9748            .update_in(cx, |workspace, window, cx| {
 9749                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9750                    let path = workspace
 9751                        .project
 9752                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9753                    cx.spawn_in(window, async move |workspace, cx| {
 9754                        let path = path.await?;
 9755
 9756                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9757
 9758                        let mut items = workspace
 9759                            .update_in(cx, |workspace, window, cx| {
 9760                                workspace.open_paths(
 9761                                    vec![path.to_path_buf()],
 9762                                    OpenOptions {
 9763                                        visible: Some(OpenVisible::None),
 9764                                        ..Default::default()
 9765                                    },
 9766                                    None,
 9767                                    window,
 9768                                    cx,
 9769                                )
 9770                            })?
 9771                            .await;
 9772                        let item = items.pop().flatten();
 9773                        item.with_context(|| format!("path {path:?} is not a file"))?
 9774                    })
 9775                })
 9776            })?
 9777            .await?
 9778            .await
 9779    })
 9780}
 9781
 9782pub fn open_remote_project_with_new_connection(
 9783    window: WindowHandle<MultiWorkspace>,
 9784    remote_connection: Arc<dyn RemoteConnection>,
 9785    cancel_rx: oneshot::Receiver<()>,
 9786    delegate: Arc<dyn RemoteClientDelegate>,
 9787    app_state: Arc<AppState>,
 9788    paths: Vec<PathBuf>,
 9789    cx: &mut App,
 9790) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9791    cx.spawn(async move |cx| {
 9792        let (workspace_id, serialized_workspace) =
 9793            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9794                .await?;
 9795
 9796        let session = match cx
 9797            .update(|cx| {
 9798                remote::RemoteClient::new(
 9799                    ConnectionIdentifier::Workspace(workspace_id.0),
 9800                    remote_connection,
 9801                    cancel_rx,
 9802                    delegate,
 9803                    cx,
 9804                )
 9805            })
 9806            .await?
 9807        {
 9808            Some(result) => result,
 9809            None => return Ok(Vec::new()),
 9810        };
 9811
 9812        let project = cx.update(|cx| {
 9813            project::Project::remote(
 9814                session,
 9815                app_state.client.clone(),
 9816                app_state.node_runtime.clone(),
 9817                app_state.user_store.clone(),
 9818                app_state.languages.clone(),
 9819                app_state.fs.clone(),
 9820                true,
 9821                cx,
 9822            )
 9823        });
 9824
 9825        open_remote_project_inner(
 9826            project,
 9827            paths,
 9828            workspace_id,
 9829            serialized_workspace,
 9830            app_state,
 9831            window,
 9832            None,
 9833            cx,
 9834        )
 9835        .await
 9836    })
 9837}
 9838
 9839pub fn open_remote_project_with_existing_connection(
 9840    connection_options: RemoteConnectionOptions,
 9841    project: Entity<Project>,
 9842    paths: Vec<PathBuf>,
 9843    app_state: Arc<AppState>,
 9844    window: WindowHandle<MultiWorkspace>,
 9845    provisional_project_group_key: Option<ProjectGroupKey>,
 9846    cx: &mut AsyncApp,
 9847) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9848    cx.spawn(async move |cx| {
 9849        let (workspace_id, serialized_workspace) =
 9850            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9851
 9852        open_remote_project_inner(
 9853            project,
 9854            paths,
 9855            workspace_id,
 9856            serialized_workspace,
 9857            app_state,
 9858            window,
 9859            provisional_project_group_key,
 9860            cx,
 9861        )
 9862        .await
 9863    })
 9864}
 9865
 9866async fn open_remote_project_inner(
 9867    project: Entity<Project>,
 9868    paths: Vec<PathBuf>,
 9869    workspace_id: WorkspaceId,
 9870    serialized_workspace: Option<SerializedWorkspace>,
 9871    app_state: Arc<AppState>,
 9872    window: WindowHandle<MultiWorkspace>,
 9873    provisional_project_group_key: Option<ProjectGroupKey>,
 9874    cx: &mut AsyncApp,
 9875) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9876    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9877    let toolchains = db.toolchains(workspace_id).await?;
 9878    for (toolchain, worktree_path, path) in toolchains {
 9879        project
 9880            .update(cx, |this, cx| {
 9881                let Some(worktree_id) =
 9882                    this.find_worktree(&worktree_path, cx)
 9883                        .and_then(|(worktree, rel_path)| {
 9884                            if rel_path.is_empty() {
 9885                                Some(worktree.read(cx).id())
 9886                            } else {
 9887                                None
 9888                            }
 9889                        })
 9890                else {
 9891                    return Task::ready(None);
 9892                };
 9893
 9894                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9895            })
 9896            .await;
 9897    }
 9898    let mut project_paths_to_open = vec![];
 9899    let mut project_path_errors = vec![];
 9900
 9901    for path in paths {
 9902        let result = cx
 9903            .update(|cx| {
 9904                Workspace::project_path_for_path(project.clone(), path.as_path(), true, cx)
 9905            })
 9906            .await;
 9907        match result {
 9908            Ok((_, project_path)) => {
 9909                project_paths_to_open.push((path, Some(project_path)));
 9910            }
 9911            Err(error) => {
 9912                project_path_errors.push(error);
 9913            }
 9914        };
 9915    }
 9916
 9917    if project_paths_to_open.is_empty() {
 9918        return Err(project_path_errors.pop().context("no paths given")?);
 9919    }
 9920
 9921    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9922        telemetry::event!("SSH Project Opened");
 9923
 9924        let new_workspace = cx.new(|cx| {
 9925            let mut workspace =
 9926                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9927            workspace.update_history(cx);
 9928
 9929            if let Some(ref serialized) = serialized_workspace {
 9930                workspace.centered_layout = serialized.centered_layout;
 9931            }
 9932
 9933            workspace
 9934        });
 9935
 9936        if let Some(project_group_key) = provisional_project_group_key.clone() {
 9937            multi_workspace.retain_workspace(new_workspace.clone(), project_group_key, cx);
 9938        }
 9939        multi_workspace.activate(new_workspace.clone(), window, cx);
 9940        new_workspace
 9941    })?;
 9942
 9943    let items = window
 9944        .update(cx, |_, window, cx| {
 9945            window.activate_window();
 9946            workspace.update(cx, |_workspace, cx| {
 9947                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9948            })
 9949        })?
 9950        .await?;
 9951
 9952    workspace.update(cx, |workspace, cx| {
 9953        for error in project_path_errors {
 9954            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9955                if let Some(path) = error.error_tag("path") {
 9956                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9957                }
 9958            } else {
 9959                workspace.show_error(&error, cx)
 9960            }
 9961        }
 9962    });
 9963
 9964    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9965}
 9966
 9967fn deserialize_remote_project(
 9968    connection_options: RemoteConnectionOptions,
 9969    paths: Vec<PathBuf>,
 9970    cx: &AsyncApp,
 9971) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9972    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9973    cx.background_spawn(async move {
 9974        let remote_connection_id = db
 9975            .get_or_create_remote_connection(connection_options)
 9976            .await?;
 9977
 9978        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9979
 9980        let workspace_id = if let Some(workspace_id) =
 9981            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9982        {
 9983            workspace_id
 9984        } else {
 9985            db.next_id().await?
 9986        };
 9987
 9988        Ok((workspace_id, serialized_workspace))
 9989    })
 9990}
 9991
 9992pub fn join_in_room_project(
 9993    project_id: u64,
 9994    follow_user_id: u64,
 9995    app_state: Arc<AppState>,
 9996    cx: &mut App,
 9997) -> Task<Result<()>> {
 9998    let windows = cx.windows();
 9999    cx.spawn(async move |cx| {
10000        let existing_window_and_workspace: Option<(
10001            WindowHandle<MultiWorkspace>,
10002            Entity<Workspace>,
10003        )> = windows.into_iter().find_map(|window_handle| {
10004            window_handle
10005                .downcast::<MultiWorkspace>()
10006                .and_then(|window_handle| {
10007                    window_handle
10008                        .update(cx, |multi_workspace, _window, cx| {
10009                            multi_workspace
10010                                .workspaces()
10011                                .find(|workspace| {
10012                                    workspace.read(cx).project().read(cx).remote_id()
10013                                        == Some(project_id)
10014                                })
10015                                .map(|workspace| (window_handle, workspace.clone()))
10016                        })
10017                        .unwrap_or(None)
10018                })
10019        });
10020
10021        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
10022            existing_window_and_workspace
10023        {
10024            existing_window
10025                .update(cx, |multi_workspace, window, cx| {
10026                    multi_workspace.activate(target_workspace, window, cx);
10027                })
10028                .ok();
10029            existing_window
10030        } else {
10031            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
10032            let project = cx
10033                .update(|cx| {
10034                    active_call.0.join_project(
10035                        project_id,
10036                        app_state.languages.clone(),
10037                        app_state.fs.clone(),
10038                        cx,
10039                    )
10040                })
10041                .await?;
10042
10043            let window_bounds_override = window_bounds_env_override();
10044            cx.update(|cx| {
10045                let mut options = (app_state.build_window_options)(None, cx);
10046                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
10047                cx.open_window(options, |window, cx| {
10048                    let workspace = cx.new(|cx| {
10049                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
10050                    });
10051                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
10052                })
10053            })?
10054        };
10055
10056        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
10057            cx.activate(true);
10058            window.activate_window();
10059
10060            // We set the active workspace above, so this is the correct workspace.
10061            let workspace = multi_workspace.workspace().clone();
10062            workspace.update(cx, |workspace, cx| {
10063                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
10064                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
10065                    .or_else(|| {
10066                        // If we couldn't follow the given user, follow the host instead.
10067                        let collaborator = workspace
10068                            .project()
10069                            .read(cx)
10070                            .collaborators()
10071                            .values()
10072                            .find(|collaborator| collaborator.is_host)?;
10073                        Some(collaborator.peer_id)
10074                    });
10075
10076                if let Some(follow_peer_id) = follow_peer_id {
10077                    workspace.follow(follow_peer_id, window, cx);
10078                }
10079            });
10080        })?;
10081
10082        anyhow::Ok(())
10083    })
10084}
10085
10086pub fn reload(cx: &mut App) {
10087    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
10088    let mut workspace_windows = cx
10089        .windows()
10090        .into_iter()
10091        .filter_map(|window| window.downcast::<MultiWorkspace>())
10092        .collect::<Vec<_>>();
10093
10094    // If multiple windows have unsaved changes, and need a save prompt,
10095    // prompt in the active window before switching to a different window.
10096    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
10097
10098    let mut prompt = None;
10099    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
10100        prompt = window
10101            .update(cx, |_, window, cx| {
10102                window.prompt(
10103                    PromptLevel::Info,
10104                    "Are you sure you want to restart?",
10105                    None,
10106                    &["Restart", "Cancel"],
10107                    cx,
10108                )
10109            })
10110            .ok();
10111    }
10112
10113    cx.spawn(async move |cx| {
10114        if let Some(prompt) = prompt {
10115            let answer = prompt.await?;
10116            if answer != 0 {
10117                return anyhow::Ok(());
10118            }
10119        }
10120
10121        // If the user cancels any save prompt, then keep the app open.
10122        for window in workspace_windows {
10123            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
10124                let workspace = multi_workspace.workspace().clone();
10125                workspace.update(cx, |workspace, cx| {
10126                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
10127                })
10128            }) && !should_close.await?
10129            {
10130                return anyhow::Ok(());
10131            }
10132        }
10133        cx.update(|cx| cx.restart());
10134        anyhow::Ok(())
10135    })
10136    .detach_and_log_err(cx);
10137}
10138
10139fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
10140    let mut parts = value.split(',');
10141    let x: usize = parts.next()?.parse().ok()?;
10142    let y: usize = parts.next()?.parse().ok()?;
10143    Some(point(px(x as f32), px(y as f32)))
10144}
10145
10146fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
10147    let mut parts = value.split(',');
10148    let width: usize = parts.next()?.parse().ok()?;
10149    let height: usize = parts.next()?.parse().ok()?;
10150    Some(size(px(width as f32), px(height as f32)))
10151}
10152
10153/// Add client-side decorations (rounded corners, shadows, resize handling) when
10154/// appropriate.
10155///
10156/// The `border_radius_tiling` parameter allows overriding which corners get
10157/// rounded, independently of the actual window tiling state. This is used
10158/// specifically for the workspace switcher sidebar: when the sidebar is open,
10159/// we want square corners on the left (so the sidebar appears flush with the
10160/// window edge) but we still need the shadow padding for proper visual
10161/// appearance. Unlike actual window tiling, this only affects border radius -
10162/// not padding or shadows.
10163pub fn client_side_decorations(
10164    element: impl IntoElement,
10165    window: &mut Window,
10166    cx: &mut App,
10167    border_radius_tiling: Tiling,
10168) -> Stateful<Div> {
10169    const BORDER_SIZE: Pixels = px(1.0);
10170    let decorations = window.window_decorations();
10171    let tiling = match decorations {
10172        Decorations::Server => Tiling::default(),
10173        Decorations::Client { tiling } => tiling,
10174    };
10175
10176    match decorations {
10177        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
10178        Decorations::Server => window.set_client_inset(px(0.0)),
10179    }
10180
10181    struct GlobalResizeEdge(ResizeEdge);
10182    impl Global for GlobalResizeEdge {}
10183
10184    div()
10185        .id("window-backdrop")
10186        .bg(transparent_black())
10187        .map(|div| match decorations {
10188            Decorations::Server => div,
10189            Decorations::Client { .. } => div
10190                .when(
10191                    !(tiling.top
10192                        || tiling.right
10193                        || border_radius_tiling.top
10194                        || border_radius_tiling.right),
10195                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10196                )
10197                .when(
10198                    !(tiling.top
10199                        || tiling.left
10200                        || border_radius_tiling.top
10201                        || border_radius_tiling.left),
10202                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10203                )
10204                .when(
10205                    !(tiling.bottom
10206                        || tiling.right
10207                        || border_radius_tiling.bottom
10208                        || border_radius_tiling.right),
10209                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10210                )
10211                .when(
10212                    !(tiling.bottom
10213                        || tiling.left
10214                        || border_radius_tiling.bottom
10215                        || border_radius_tiling.left),
10216                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10217                )
10218                .when(!tiling.top, |div| {
10219                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
10220                })
10221                .when(!tiling.bottom, |div| {
10222                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
10223                })
10224                .when(!tiling.left, |div| {
10225                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
10226                })
10227                .when(!tiling.right, |div| {
10228                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
10229                })
10230                .on_mouse_move(move |e, window, cx| {
10231                    let size = window.window_bounds().get_bounds().size;
10232                    let pos = e.position;
10233
10234                    let new_edge =
10235                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
10236
10237                    let edge = cx.try_global::<GlobalResizeEdge>();
10238                    if new_edge != edge.map(|edge| edge.0) {
10239                        window
10240                            .window_handle()
10241                            .update(cx, |workspace, _, cx| {
10242                                cx.notify(workspace.entity_id());
10243                            })
10244                            .ok();
10245                    }
10246                })
10247                .on_mouse_down(MouseButton::Left, move |e, window, _| {
10248                    let size = window.window_bounds().get_bounds().size;
10249                    let pos = e.position;
10250
10251                    let edge = match resize_edge(
10252                        pos,
10253                        theme::CLIENT_SIDE_DECORATION_SHADOW,
10254                        size,
10255                        tiling,
10256                    ) {
10257                        Some(value) => value,
10258                        None => return,
10259                    };
10260
10261                    window.start_window_resize(edge);
10262                }),
10263        })
10264        .size_full()
10265        .child(
10266            div()
10267                .cursor(CursorStyle::Arrow)
10268                .map(|div| match decorations {
10269                    Decorations::Server => div,
10270                    Decorations::Client { .. } => div
10271                        .border_color(cx.theme().colors().border)
10272                        .when(
10273                            !(tiling.top
10274                                || tiling.right
10275                                || border_radius_tiling.top
10276                                || border_radius_tiling.right),
10277                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10278                        )
10279                        .when(
10280                            !(tiling.top
10281                                || tiling.left
10282                                || border_radius_tiling.top
10283                                || border_radius_tiling.left),
10284                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10285                        )
10286                        .when(
10287                            !(tiling.bottom
10288                                || tiling.right
10289                                || border_radius_tiling.bottom
10290                                || border_radius_tiling.right),
10291                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10292                        )
10293                        .when(
10294                            !(tiling.bottom
10295                                || tiling.left
10296                                || border_radius_tiling.bottom
10297                                || border_radius_tiling.left),
10298                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10299                        )
10300                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
10301                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
10302                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
10303                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
10304                        .when(!tiling.is_tiled(), |div| {
10305                            div.shadow(vec![gpui::BoxShadow {
10306                                color: Hsla {
10307                                    h: 0.,
10308                                    s: 0.,
10309                                    l: 0.,
10310                                    a: 0.4,
10311                                },
10312                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
10313                                spread_radius: px(0.),
10314                                offset: point(px(0.0), px(0.0)),
10315                            }])
10316                        }),
10317                })
10318                .on_mouse_move(|_e, _, cx| {
10319                    cx.stop_propagation();
10320                })
10321                .size_full()
10322                .child(element),
10323        )
10324        .map(|div| match decorations {
10325            Decorations::Server => div,
10326            Decorations::Client { tiling, .. } => div.child(
10327                canvas(
10328                    |_bounds, window, _| {
10329                        window.insert_hitbox(
10330                            Bounds::new(
10331                                point(px(0.0), px(0.0)),
10332                                window.window_bounds().get_bounds().size,
10333                            ),
10334                            HitboxBehavior::Normal,
10335                        )
10336                    },
10337                    move |_bounds, hitbox, window, cx| {
10338                        let mouse = window.mouse_position();
10339                        let size = window.window_bounds().get_bounds().size;
10340                        let Some(edge) =
10341                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
10342                        else {
10343                            return;
10344                        };
10345                        cx.set_global(GlobalResizeEdge(edge));
10346                        window.set_cursor_style(
10347                            match edge {
10348                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
10349                                ResizeEdge::Left | ResizeEdge::Right => {
10350                                    CursorStyle::ResizeLeftRight
10351                                }
10352                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
10353                                    CursorStyle::ResizeUpLeftDownRight
10354                                }
10355                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
10356                                    CursorStyle::ResizeUpRightDownLeft
10357                                }
10358                            },
10359                            &hitbox,
10360                        );
10361                    },
10362                )
10363                .size_full()
10364                .absolute(),
10365            ),
10366        })
10367}
10368
10369fn resize_edge(
10370    pos: Point<Pixels>,
10371    shadow_size: Pixels,
10372    window_size: Size<Pixels>,
10373    tiling: Tiling,
10374) -> Option<ResizeEdge> {
10375    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
10376    if bounds.contains(&pos) {
10377        return None;
10378    }
10379
10380    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
10381    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10382    if !tiling.top && top_left_bounds.contains(&pos) {
10383        return Some(ResizeEdge::TopLeft);
10384    }
10385
10386    let top_right_bounds = Bounds::new(
10387        Point::new(window_size.width - corner_size.width, px(0.)),
10388        corner_size,
10389    );
10390    if !tiling.top && top_right_bounds.contains(&pos) {
10391        return Some(ResizeEdge::TopRight);
10392    }
10393
10394    let bottom_left_bounds = Bounds::new(
10395        Point::new(px(0.), window_size.height - corner_size.height),
10396        corner_size,
10397    );
10398    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10399        return Some(ResizeEdge::BottomLeft);
10400    }
10401
10402    let bottom_right_bounds = Bounds::new(
10403        Point::new(
10404            window_size.width - corner_size.width,
10405            window_size.height - corner_size.height,
10406        ),
10407        corner_size,
10408    );
10409    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10410        return Some(ResizeEdge::BottomRight);
10411    }
10412
10413    if !tiling.top && pos.y < shadow_size {
10414        Some(ResizeEdge::Top)
10415    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10416        Some(ResizeEdge::Bottom)
10417    } else if !tiling.left && pos.x < shadow_size {
10418        Some(ResizeEdge::Left)
10419    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10420        Some(ResizeEdge::Right)
10421    } else {
10422        None
10423    }
10424}
10425
10426fn join_pane_into_active(
10427    active_pane: &Entity<Pane>,
10428    pane: &Entity<Pane>,
10429    window: &mut Window,
10430    cx: &mut App,
10431) {
10432    if pane == active_pane {
10433    } else if pane.read(cx).items_len() == 0 {
10434        pane.update(cx, |_, cx| {
10435            cx.emit(pane::Event::Remove {
10436                focus_on_pane: None,
10437            });
10438        })
10439    } else {
10440        move_all_items(pane, active_pane, window, cx);
10441    }
10442}
10443
10444fn move_all_items(
10445    from_pane: &Entity<Pane>,
10446    to_pane: &Entity<Pane>,
10447    window: &mut Window,
10448    cx: &mut App,
10449) {
10450    let destination_is_different = from_pane != to_pane;
10451    let mut moved_items = 0;
10452    for (item_ix, item_handle) in from_pane
10453        .read(cx)
10454        .items()
10455        .enumerate()
10456        .map(|(ix, item)| (ix, item.clone()))
10457        .collect::<Vec<_>>()
10458    {
10459        let ix = item_ix - moved_items;
10460        if destination_is_different {
10461            // Close item from previous pane
10462            from_pane.update(cx, |source, cx| {
10463                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10464            });
10465            moved_items += 1;
10466        }
10467
10468        // This automatically removes duplicate items in the pane
10469        to_pane.update(cx, |destination, cx| {
10470            destination.add_item(item_handle, true, true, None, window, cx);
10471            window.focus(&destination.focus_handle(cx), cx)
10472        });
10473    }
10474}
10475
10476pub fn move_item(
10477    source: &Entity<Pane>,
10478    destination: &Entity<Pane>,
10479    item_id_to_move: EntityId,
10480    destination_index: usize,
10481    activate: bool,
10482    window: &mut Window,
10483    cx: &mut App,
10484) {
10485    let Some((item_ix, item_handle)) = source
10486        .read(cx)
10487        .items()
10488        .enumerate()
10489        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10490        .map(|(ix, item)| (ix, item.clone()))
10491    else {
10492        // Tab was closed during drag
10493        return;
10494    };
10495
10496    if source != destination {
10497        // Close item from previous pane
10498        source.update(cx, |source, cx| {
10499            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10500        });
10501    }
10502
10503    // This automatically removes duplicate items in the pane
10504    destination.update(cx, |destination, cx| {
10505        destination.add_item_inner(
10506            item_handle,
10507            activate,
10508            activate,
10509            activate,
10510            Some(destination_index),
10511            window,
10512            cx,
10513        );
10514        if activate {
10515            window.focus(&destination.focus_handle(cx), cx)
10516        }
10517    });
10518}
10519
10520pub fn move_active_item(
10521    source: &Entity<Pane>,
10522    destination: &Entity<Pane>,
10523    focus_destination: bool,
10524    close_if_empty: bool,
10525    window: &mut Window,
10526    cx: &mut App,
10527) {
10528    if source == destination {
10529        return;
10530    }
10531    let Some(active_item) = source.read(cx).active_item() else {
10532        return;
10533    };
10534    source.update(cx, |source_pane, cx| {
10535        let item_id = active_item.item_id();
10536        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10537        destination.update(cx, |target_pane, cx| {
10538            target_pane.add_item(
10539                active_item,
10540                focus_destination,
10541                focus_destination,
10542                Some(target_pane.items_len()),
10543                window,
10544                cx,
10545            );
10546        });
10547    });
10548}
10549
10550pub fn clone_active_item(
10551    workspace_id: Option<WorkspaceId>,
10552    source: &Entity<Pane>,
10553    destination: &Entity<Pane>,
10554    focus_destination: bool,
10555    window: &mut Window,
10556    cx: &mut App,
10557) {
10558    if source == destination {
10559        return;
10560    }
10561    let Some(active_item) = source.read(cx).active_item() else {
10562        return;
10563    };
10564    if !active_item.can_split(cx) {
10565        return;
10566    }
10567    let destination = destination.downgrade();
10568    let task = active_item.clone_on_split(workspace_id, window, cx);
10569    window
10570        .spawn(cx, async move |cx| {
10571            let Some(clone) = task.await else {
10572                return;
10573            };
10574            destination
10575                .update_in(cx, |target_pane, window, cx| {
10576                    target_pane.add_item(
10577                        clone,
10578                        focus_destination,
10579                        focus_destination,
10580                        Some(target_pane.items_len()),
10581                        window,
10582                        cx,
10583                    );
10584                })
10585                .log_err();
10586        })
10587        .detach();
10588}
10589
10590#[derive(Debug)]
10591pub struct WorkspacePosition {
10592    pub window_bounds: Option<WindowBounds>,
10593    pub display: Option<Uuid>,
10594    pub centered_layout: bool,
10595}
10596
10597pub fn remote_workspace_position_from_db(
10598    connection_options: RemoteConnectionOptions,
10599    paths_to_open: &[PathBuf],
10600    cx: &App,
10601) -> Task<Result<WorkspacePosition>> {
10602    let paths = paths_to_open.to_vec();
10603    let db = WorkspaceDb::global(cx);
10604    let kvp = db::kvp::KeyValueStore::global(cx);
10605
10606    cx.background_spawn(async move {
10607        let remote_connection_id = db
10608            .get_or_create_remote_connection(connection_options)
10609            .await
10610            .context("fetching serialized ssh project")?;
10611        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10612
10613        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10614            (Some(WindowBounds::Windowed(bounds)), None)
10615        } else {
10616            let restorable_bounds = serialized_workspace
10617                .as_ref()
10618                .and_then(|workspace| {
10619                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10620                })
10621                .or_else(|| persistence::read_default_window_bounds(&kvp));
10622
10623            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10624                (Some(serialized_bounds), Some(serialized_display))
10625            } else {
10626                (None, None)
10627            }
10628        };
10629
10630        let centered_layout = serialized_workspace
10631            .as_ref()
10632            .map(|w| w.centered_layout)
10633            .unwrap_or(false);
10634
10635        Ok(WorkspacePosition {
10636            window_bounds,
10637            display,
10638            centered_layout,
10639        })
10640    })
10641}
10642
10643pub fn with_active_or_new_workspace(
10644    cx: &mut App,
10645    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10646) {
10647    match cx
10648        .active_window()
10649        .and_then(|w| w.downcast::<MultiWorkspace>())
10650    {
10651        Some(multi_workspace) => {
10652            cx.defer(move |cx| {
10653                multi_workspace
10654                    .update(cx, |multi_workspace, window, cx| {
10655                        let workspace = multi_workspace.workspace().clone();
10656                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10657                    })
10658                    .log_err();
10659            });
10660        }
10661        None => {
10662            let app_state = AppState::global(cx);
10663            open_new(
10664                OpenOptions::default(),
10665                app_state,
10666                cx,
10667                move |workspace, window, cx| f(workspace, window, cx),
10668            )
10669            .detach_and_log_err(cx);
10670        }
10671    }
10672}
10673
10674/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10675/// key. This migration path only runs once per panel per workspace.
10676fn load_legacy_panel_size(
10677    panel_key: &str,
10678    dock_position: DockPosition,
10679    workspace: &Workspace,
10680    cx: &mut App,
10681) -> Option<Pixels> {
10682    #[derive(Deserialize)]
10683    struct LegacyPanelState {
10684        #[serde(default)]
10685        width: Option<Pixels>,
10686        #[serde(default)]
10687        height: Option<Pixels>,
10688    }
10689
10690    let workspace_id = workspace
10691        .database_id()
10692        .map(|id| i64::from(id).to_string())
10693        .or_else(|| workspace.session_id())?;
10694
10695    let legacy_key = match panel_key {
10696        "ProjectPanel" => {
10697            format!("{}-{:?}", "ProjectPanel", workspace_id)
10698        }
10699        "OutlinePanel" => {
10700            format!("{}-{:?}", "OutlinePanel", workspace_id)
10701        }
10702        "GitPanel" => {
10703            format!("{}-{:?}", "GitPanel", workspace_id)
10704        }
10705        "TerminalPanel" => {
10706            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10707        }
10708        _ => return None,
10709    };
10710
10711    let kvp = db::kvp::KeyValueStore::global(cx);
10712    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10713    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10714    let size = match dock_position {
10715        DockPosition::Bottom => state.height,
10716        DockPosition::Left | DockPosition::Right => state.width,
10717    }?;
10718
10719    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10720        .detach_and_log_err(cx);
10721
10722    Some(size)
10723}
10724
10725#[cfg(test)]
10726mod tests {
10727    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10728
10729    use super::*;
10730    use crate::{
10731        dock::{PanelEvent, test::TestPanel},
10732        item::{
10733            ItemBufferKind, ItemEvent,
10734            test::{TestItem, TestProjectItem},
10735        },
10736    };
10737    use fs::FakeFs;
10738    use gpui::{
10739        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10740        UpdateGlobal, VisualTestContext, px,
10741    };
10742    use project::{Project, ProjectEntryId};
10743    use serde_json::json;
10744    use settings::SettingsStore;
10745    use util::path;
10746    use util::rel_path::rel_path;
10747
10748    #[gpui::test]
10749    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10750        init_test(cx);
10751
10752        let fs = FakeFs::new(cx.executor());
10753        let project = Project::test(fs, [], cx).await;
10754        let (workspace, cx) =
10755            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10756
10757        // Adding an item with no ambiguity renders the tab without detail.
10758        let item1 = cx.new(|cx| {
10759            let mut item = TestItem::new(cx);
10760            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10761            item
10762        });
10763        workspace.update_in(cx, |workspace, window, cx| {
10764            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10765        });
10766        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10767
10768        // Adding an item that creates ambiguity increases the level of detail on
10769        // both tabs.
10770        let item2 = cx.new_window_entity(|_window, cx| {
10771            let mut item = TestItem::new(cx);
10772            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10773            item
10774        });
10775        workspace.update_in(cx, |workspace, window, cx| {
10776            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10777        });
10778        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10779        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10780
10781        // Adding an item that creates ambiguity increases the level of detail only
10782        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10783        // we stop at the highest detail available.
10784        let item3 = cx.new(|cx| {
10785            let mut item = TestItem::new(cx);
10786            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10787            item
10788        });
10789        workspace.update_in(cx, |workspace, window, cx| {
10790            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10791        });
10792        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10793        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10794        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10795    }
10796
10797    #[gpui::test]
10798    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10799        init_test(cx);
10800
10801        let fs = FakeFs::new(cx.executor());
10802        fs.insert_tree(
10803            "/root1",
10804            json!({
10805                "one.txt": "",
10806                "two.txt": "",
10807            }),
10808        )
10809        .await;
10810        fs.insert_tree(
10811            "/root2",
10812            json!({
10813                "three.txt": "",
10814            }),
10815        )
10816        .await;
10817
10818        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10819        let (workspace, cx) =
10820            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10821        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10822        let worktree_id = project.update(cx, |project, cx| {
10823            project.worktrees(cx).next().unwrap().read(cx).id()
10824        });
10825
10826        let item1 = cx.new(|cx| {
10827            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10828        });
10829        let item2 = cx.new(|cx| {
10830            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10831        });
10832
10833        // Add an item to an empty pane
10834        workspace.update_in(cx, |workspace, window, cx| {
10835            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10836        });
10837        project.update(cx, |project, cx| {
10838            assert_eq!(
10839                project.active_entry(),
10840                project
10841                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10842                    .map(|e| e.id)
10843            );
10844        });
10845        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10846
10847        // Add a second item to a non-empty pane
10848        workspace.update_in(cx, |workspace, window, cx| {
10849            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10850        });
10851        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10852        project.update(cx, |project, cx| {
10853            assert_eq!(
10854                project.active_entry(),
10855                project
10856                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10857                    .map(|e| e.id)
10858            );
10859        });
10860
10861        // Close the active item
10862        pane.update_in(cx, |pane, window, cx| {
10863            pane.close_active_item(&Default::default(), window, cx)
10864        })
10865        .await
10866        .unwrap();
10867        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10868        project.update(cx, |project, cx| {
10869            assert_eq!(
10870                project.active_entry(),
10871                project
10872                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10873                    .map(|e| e.id)
10874            );
10875        });
10876
10877        // Add a project folder
10878        project
10879            .update(cx, |project, cx| {
10880                project.find_or_create_worktree("root2", true, cx)
10881            })
10882            .await
10883            .unwrap();
10884        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10885
10886        // Remove a project folder
10887        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10888        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10889    }
10890
10891    #[gpui::test]
10892    async fn test_close_window(cx: &mut TestAppContext) {
10893        init_test(cx);
10894
10895        let fs = FakeFs::new(cx.executor());
10896        fs.insert_tree("/root", json!({ "one": "" })).await;
10897
10898        let project = Project::test(fs, ["root".as_ref()], cx).await;
10899        let (workspace, cx) =
10900            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10901
10902        // When there are no dirty items, there's nothing to do.
10903        let item1 = cx.new(TestItem::new);
10904        workspace.update_in(cx, |w, window, cx| {
10905            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10906        });
10907        let task = workspace.update_in(cx, |w, window, cx| {
10908            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10909        });
10910        assert!(task.await.unwrap());
10911
10912        // When there are dirty untitled items, prompt to save each one. If the user
10913        // cancels any prompt, then abort.
10914        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10915        let item3 = cx.new(|cx| {
10916            TestItem::new(cx)
10917                .with_dirty(true)
10918                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10919        });
10920        workspace.update_in(cx, |w, window, cx| {
10921            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10922            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10923        });
10924        let task = workspace.update_in(cx, |w, window, cx| {
10925            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10926        });
10927        cx.executor().run_until_parked();
10928        cx.simulate_prompt_answer("Cancel"); // cancel save all
10929        cx.executor().run_until_parked();
10930        assert!(!cx.has_pending_prompt());
10931        assert!(!task.await.unwrap());
10932    }
10933
10934    #[gpui::test]
10935    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10936        init_test(cx);
10937
10938        let fs = FakeFs::new(cx.executor());
10939        fs.insert_tree("/root", json!({ "one": "" })).await;
10940
10941        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10942        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10943        let multi_workspace_handle =
10944            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10945        cx.run_until_parked();
10946
10947        multi_workspace_handle
10948            .update(cx, |mw, _window, cx| {
10949                mw.open_sidebar(cx);
10950            })
10951            .unwrap();
10952
10953        let workspace_a = multi_workspace_handle
10954            .read_with(cx, |mw, _| mw.workspace().clone())
10955            .unwrap();
10956
10957        let workspace_b = multi_workspace_handle
10958            .update(cx, |mw, window, cx| {
10959                mw.test_add_workspace(project_b, window, cx)
10960            })
10961            .unwrap();
10962
10963        // Activate workspace A
10964        multi_workspace_handle
10965            .update(cx, |mw, window, cx| {
10966                mw.activate(workspace_a.clone(), window, cx);
10967            })
10968            .unwrap();
10969
10970        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10971
10972        // Workspace A has a clean item
10973        let item_a = cx.new(TestItem::new);
10974        workspace_a.update_in(cx, |w, window, cx| {
10975            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10976        });
10977
10978        // Workspace B has a dirty item
10979        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10980        workspace_b.update_in(cx, |w, window, cx| {
10981            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10982        });
10983
10984        // Verify workspace A is active
10985        multi_workspace_handle
10986            .read_with(cx, |mw, _| {
10987                assert_eq!(mw.workspace(), &workspace_a);
10988            })
10989            .unwrap();
10990
10991        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10992        multi_workspace_handle
10993            .update(cx, |mw, window, cx| {
10994                mw.close_window(&CloseWindow, window, cx);
10995            })
10996            .unwrap();
10997        cx.run_until_parked();
10998
10999        // Workspace B should now be active since it has dirty items that need attention
11000        multi_workspace_handle
11001            .read_with(cx, |mw, _| {
11002                assert_eq!(
11003                    mw.workspace(),
11004                    &workspace_b,
11005                    "workspace B should be activated when it prompts"
11006                );
11007            })
11008            .unwrap();
11009
11010        // User cancels the save prompt from workspace B
11011        cx.simulate_prompt_answer("Cancel");
11012        cx.run_until_parked();
11013
11014        // Window should still exist because workspace B's close was cancelled
11015        assert!(
11016            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
11017            "window should still exist after cancelling one workspace's close"
11018        );
11019    }
11020
11021    #[gpui::test]
11022    async fn test_remove_workspace_prompts_for_unsaved_changes(cx: &mut TestAppContext) {
11023        init_test(cx);
11024
11025        let fs = FakeFs::new(cx.executor());
11026        fs.insert_tree("/root", json!({ "one": "" })).await;
11027
11028        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
11029        let project_b = Project::test(fs.clone(), ["root".as_ref()], cx).await;
11030        let multi_workspace_handle =
11031            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
11032        cx.run_until_parked();
11033
11034        multi_workspace_handle
11035            .update(cx, |mw, _window, cx| mw.open_sidebar(cx))
11036            .unwrap();
11037
11038        let workspace_a = multi_workspace_handle
11039            .read_with(cx, |mw, _| mw.workspace().clone())
11040            .unwrap();
11041
11042        let workspace_b = multi_workspace_handle
11043            .update(cx, |mw, window, cx| {
11044                mw.test_add_workspace(project_b, window, cx)
11045            })
11046            .unwrap();
11047
11048        // Activate workspace A.
11049        multi_workspace_handle
11050            .update(cx, |mw, window, cx| {
11051                mw.activate(workspace_a.clone(), window, cx);
11052            })
11053            .unwrap();
11054
11055        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
11056
11057        // Workspace B has a dirty item.
11058        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
11059        workspace_b.update_in(cx, |w, window, cx| {
11060            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
11061        });
11062
11063        // Try to remove workspace B. It should prompt because of the dirty item.
11064        let remove_task = multi_workspace_handle
11065            .update(cx, |mw, window, cx| {
11066                mw.remove([workspace_b.clone()], |_, _, _| unreachable!(), window, cx)
11067            })
11068            .unwrap();
11069        cx.run_until_parked();
11070
11071        // The prompt should have activated workspace B.
11072        multi_workspace_handle
11073            .read_with(cx, |mw, _| {
11074                assert_eq!(
11075                    mw.workspace(),
11076                    &workspace_b,
11077                    "workspace B should be active while prompting"
11078                );
11079            })
11080            .unwrap();
11081
11082        // Cancel the prompt — user stays on workspace B.
11083        cx.simulate_prompt_answer("Cancel");
11084        cx.run_until_parked();
11085        let removed = remove_task.await.unwrap();
11086        assert!(!removed, "removal should have been cancelled");
11087
11088        multi_workspace_handle
11089            .read_with(cx, |mw, _cx| {
11090                assert_eq!(
11091                    mw.workspace(),
11092                    &workspace_b,
11093                    "user should stay on workspace B after cancelling"
11094                );
11095                assert_eq!(mw.workspaces().count(), 2, "both workspaces should remain");
11096            })
11097            .unwrap();
11098
11099        // Try again. This time accept the prompt.
11100        let remove_task = multi_workspace_handle
11101            .update(cx, |mw, window, cx| {
11102                // First switch back to A.
11103                mw.activate(workspace_a.clone(), window, cx);
11104                mw.remove([workspace_b.clone()], |_, _, _| unreachable!(), window, cx)
11105            })
11106            .unwrap();
11107        cx.run_until_parked();
11108
11109        // Accept the save prompt.
11110        cx.simulate_prompt_answer("Don't Save");
11111        cx.run_until_parked();
11112        let removed = remove_task.await.unwrap();
11113        assert!(removed, "removal should have succeeded");
11114
11115        // Should be back on workspace A, and B should be gone.
11116        multi_workspace_handle
11117            .read_with(cx, |mw, _cx| {
11118                assert_eq!(
11119                    mw.workspace(),
11120                    &workspace_a,
11121                    "should be back on workspace A after removing B"
11122                );
11123                assert_eq!(mw.workspaces().count(), 1, "only workspace A should remain");
11124            })
11125            .unwrap();
11126    }
11127
11128    #[gpui::test]
11129    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
11130        init_test(cx);
11131
11132        // Register TestItem as a serializable item
11133        cx.update(|cx| {
11134            register_serializable_item::<TestItem>(cx);
11135        });
11136
11137        let fs = FakeFs::new(cx.executor());
11138        fs.insert_tree("/root", json!({ "one": "" })).await;
11139
11140        let project = Project::test(fs, ["root".as_ref()], cx).await;
11141        let (workspace, cx) =
11142            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11143
11144        // When there are dirty untitled items, but they can serialize, then there is no prompt.
11145        let item1 = cx.new(|cx| {
11146            TestItem::new(cx)
11147                .with_dirty(true)
11148                .with_serialize(|| Some(Task::ready(Ok(()))))
11149        });
11150        let item2 = cx.new(|cx| {
11151            TestItem::new(cx)
11152                .with_dirty(true)
11153                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11154                .with_serialize(|| Some(Task::ready(Ok(()))))
11155        });
11156        workspace.update_in(cx, |w, window, cx| {
11157            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
11158            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
11159        });
11160        let task = workspace.update_in(cx, |w, window, cx| {
11161            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
11162        });
11163        assert!(task.await.unwrap());
11164    }
11165
11166    #[gpui::test]
11167    async fn test_close_pane_items(cx: &mut TestAppContext) {
11168        init_test(cx);
11169
11170        let fs = FakeFs::new(cx.executor());
11171
11172        let project = Project::test(fs, None, cx).await;
11173        let (workspace, cx) =
11174            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11175
11176        let item1 = cx.new(|cx| {
11177            TestItem::new(cx)
11178                .with_dirty(true)
11179                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11180        });
11181        let item2 = cx.new(|cx| {
11182            TestItem::new(cx)
11183                .with_dirty(true)
11184                .with_conflict(true)
11185                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11186        });
11187        let item3 = cx.new(|cx| {
11188            TestItem::new(cx)
11189                .with_dirty(true)
11190                .with_conflict(true)
11191                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
11192        });
11193        let item4 = cx.new(|cx| {
11194            TestItem::new(cx).with_dirty(true).with_project_items(&[{
11195                let project_item = TestProjectItem::new_untitled(cx);
11196                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11197                project_item
11198            }])
11199        });
11200        let pane = workspace.update_in(cx, |workspace, window, cx| {
11201            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
11202            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
11203            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
11204            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
11205            workspace.active_pane().clone()
11206        });
11207
11208        let close_items = pane.update_in(cx, |pane, window, cx| {
11209            pane.activate_item(1, true, true, window, cx);
11210            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
11211            let item1_id = item1.item_id();
11212            let item3_id = item3.item_id();
11213            let item4_id = item4.item_id();
11214            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
11215                [item1_id, item3_id, item4_id].contains(&id)
11216            })
11217        });
11218        cx.executor().run_until_parked();
11219
11220        assert!(cx.has_pending_prompt());
11221        cx.simulate_prompt_answer("Save all");
11222
11223        cx.executor().run_until_parked();
11224
11225        // Item 1 is saved. There's a prompt to save item 3.
11226        pane.update(cx, |pane, cx| {
11227            assert_eq!(item1.read(cx).save_count, 1);
11228            assert_eq!(item1.read(cx).save_as_count, 0);
11229            assert_eq!(item1.read(cx).reload_count, 0);
11230            assert_eq!(pane.items_len(), 3);
11231            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
11232        });
11233        assert!(cx.has_pending_prompt());
11234
11235        // Cancel saving item 3.
11236        cx.simulate_prompt_answer("Discard");
11237        cx.executor().run_until_parked();
11238
11239        // Item 3 is reloaded. There's a prompt to save item 4.
11240        pane.update(cx, |pane, cx| {
11241            assert_eq!(item3.read(cx).save_count, 0);
11242            assert_eq!(item3.read(cx).save_as_count, 0);
11243            assert_eq!(item3.read(cx).reload_count, 1);
11244            assert_eq!(pane.items_len(), 2);
11245            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
11246        });
11247
11248        // There's a prompt for a path for item 4.
11249        cx.simulate_new_path_selection(|_| Some(Default::default()));
11250        close_items.await.unwrap();
11251
11252        // The requested items are closed.
11253        pane.update(cx, |pane, cx| {
11254            assert_eq!(item4.read(cx).save_count, 0);
11255            assert_eq!(item4.read(cx).save_as_count, 1);
11256            assert_eq!(item4.read(cx).reload_count, 0);
11257            assert_eq!(pane.items_len(), 1);
11258            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
11259        });
11260    }
11261
11262    #[gpui::test]
11263    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
11264        init_test(cx);
11265
11266        let fs = FakeFs::new(cx.executor());
11267        let project = Project::test(fs, [], cx).await;
11268        let (workspace, cx) =
11269            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11270
11271        // Create several workspace items with single project entries, and two
11272        // workspace items with multiple project entries.
11273        let single_entry_items = (0..=4)
11274            .map(|project_entry_id| {
11275                cx.new(|cx| {
11276                    TestItem::new(cx)
11277                        .with_dirty(true)
11278                        .with_project_items(&[dirty_project_item(
11279                            project_entry_id,
11280                            &format!("{project_entry_id}.txt"),
11281                            cx,
11282                        )])
11283                })
11284            })
11285            .collect::<Vec<_>>();
11286        let item_2_3 = cx.new(|cx| {
11287            TestItem::new(cx)
11288                .with_dirty(true)
11289                .with_buffer_kind(ItemBufferKind::Multibuffer)
11290                .with_project_items(&[
11291                    single_entry_items[2].read(cx).project_items[0].clone(),
11292                    single_entry_items[3].read(cx).project_items[0].clone(),
11293                ])
11294        });
11295        let item_3_4 = cx.new(|cx| {
11296            TestItem::new(cx)
11297                .with_dirty(true)
11298                .with_buffer_kind(ItemBufferKind::Multibuffer)
11299                .with_project_items(&[
11300                    single_entry_items[3].read(cx).project_items[0].clone(),
11301                    single_entry_items[4].read(cx).project_items[0].clone(),
11302                ])
11303        });
11304
11305        // Create two panes that contain the following project entries:
11306        //   left pane:
11307        //     multi-entry items:   (2, 3)
11308        //     single-entry items:  0, 2, 3, 4
11309        //   right pane:
11310        //     single-entry items:  4, 1
11311        //     multi-entry items:   (3, 4)
11312        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
11313            let left_pane = workspace.active_pane().clone();
11314            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
11315            workspace.add_item_to_active_pane(
11316                single_entry_items[0].boxed_clone(),
11317                None,
11318                true,
11319                window,
11320                cx,
11321            );
11322            workspace.add_item_to_active_pane(
11323                single_entry_items[2].boxed_clone(),
11324                None,
11325                true,
11326                window,
11327                cx,
11328            );
11329            workspace.add_item_to_active_pane(
11330                single_entry_items[3].boxed_clone(),
11331                None,
11332                true,
11333                window,
11334                cx,
11335            );
11336            workspace.add_item_to_active_pane(
11337                single_entry_items[4].boxed_clone(),
11338                None,
11339                true,
11340                window,
11341                cx,
11342            );
11343
11344            let right_pane =
11345                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
11346
11347            let boxed_clone = single_entry_items[1].boxed_clone();
11348            let right_pane = window.spawn(cx, async move |cx| {
11349                right_pane.await.inspect(|right_pane| {
11350                    right_pane
11351                        .update_in(cx, |pane, window, cx| {
11352                            pane.add_item(boxed_clone, true, true, None, window, cx);
11353                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
11354                        })
11355                        .unwrap();
11356                })
11357            });
11358
11359            (left_pane, right_pane)
11360        });
11361        let right_pane = right_pane.await.unwrap();
11362        cx.focus(&right_pane);
11363
11364        let close = right_pane.update_in(cx, |pane, window, cx| {
11365            pane.close_all_items(&CloseAllItems::default(), window, cx)
11366                .unwrap()
11367        });
11368        cx.executor().run_until_parked();
11369
11370        let msg = cx.pending_prompt().unwrap().0;
11371        assert!(msg.contains("1.txt"));
11372        assert!(!msg.contains("2.txt"));
11373        assert!(!msg.contains("3.txt"));
11374        assert!(!msg.contains("4.txt"));
11375
11376        // With best-effort close, cancelling item 1 keeps it open but items 4
11377        // and (3,4) still close since their entries exist in left pane.
11378        cx.simulate_prompt_answer("Cancel");
11379        close.await;
11380
11381        right_pane.read_with(cx, |pane, _| {
11382            assert_eq!(pane.items_len(), 1);
11383        });
11384
11385        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
11386        left_pane
11387            .update_in(cx, |left_pane, window, cx| {
11388                left_pane.close_item_by_id(
11389                    single_entry_items[3].entity_id(),
11390                    SaveIntent::Skip,
11391                    window,
11392                    cx,
11393                )
11394            })
11395            .await
11396            .unwrap();
11397
11398        let close = left_pane.update_in(cx, |pane, window, cx| {
11399            pane.close_all_items(&CloseAllItems::default(), window, cx)
11400                .unwrap()
11401        });
11402        cx.executor().run_until_parked();
11403
11404        let details = cx.pending_prompt().unwrap().1;
11405        assert!(details.contains("0.txt"));
11406        assert!(details.contains("3.txt"));
11407        assert!(details.contains("4.txt"));
11408        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
11409        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
11410        // assert!(!details.contains("2.txt"));
11411
11412        cx.simulate_prompt_answer("Save all");
11413        cx.executor().run_until_parked();
11414        close.await;
11415
11416        left_pane.read_with(cx, |pane, _| {
11417            assert_eq!(pane.items_len(), 0);
11418        });
11419    }
11420
11421    #[gpui::test]
11422    async fn test_autosave(cx: &mut gpui::TestAppContext) {
11423        init_test(cx);
11424
11425        let fs = FakeFs::new(cx.executor());
11426        let project = Project::test(fs, [], cx).await;
11427        let (workspace, cx) =
11428            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11429        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11430
11431        let item = cx.new(|cx| {
11432            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11433        });
11434        let item_id = item.entity_id();
11435        workspace.update_in(cx, |workspace, window, cx| {
11436            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11437        });
11438
11439        // Autosave on window change.
11440        item.update(cx, |item, cx| {
11441            SettingsStore::update_global(cx, |settings, cx| {
11442                settings.update_user_settings(cx, |settings| {
11443                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
11444                })
11445            });
11446            item.is_dirty = true;
11447        });
11448
11449        // Deactivating the window saves the file.
11450        cx.deactivate_window();
11451        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11452
11453        // Re-activating the window doesn't save the file.
11454        cx.update(|window, _| window.activate_window());
11455        cx.executor().run_until_parked();
11456        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11457
11458        // Autosave on focus change.
11459        item.update_in(cx, |item, window, cx| {
11460            cx.focus_self(window);
11461            SettingsStore::update_global(cx, |settings, cx| {
11462                settings.update_user_settings(cx, |settings| {
11463                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11464                })
11465            });
11466            item.is_dirty = true;
11467        });
11468        // Blurring the item saves the file.
11469        item.update_in(cx, |_, window, _| window.blur());
11470        cx.executor().run_until_parked();
11471        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
11472
11473        // Deactivating the window still saves the file.
11474        item.update_in(cx, |item, window, cx| {
11475            cx.focus_self(window);
11476            item.is_dirty = true;
11477        });
11478        cx.deactivate_window();
11479        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
11480
11481        // Autosave after delay.
11482        item.update(cx, |item, cx| {
11483            SettingsStore::update_global(cx, |settings, cx| {
11484                settings.update_user_settings(cx, |settings| {
11485                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
11486                        milliseconds: 500.into(),
11487                    });
11488                })
11489            });
11490            item.is_dirty = true;
11491            cx.emit(ItemEvent::Edit);
11492        });
11493
11494        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11495        cx.executor().advance_clock(Duration::from_millis(250));
11496        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11497
11498        // After delay expires, the file is saved.
11499        cx.executor().advance_clock(Duration::from_millis(250));
11500        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11501
11502        // Autosave after delay, should save earlier than delay if tab is closed
11503        item.update(cx, |item, cx| {
11504            item.is_dirty = true;
11505            cx.emit(ItemEvent::Edit);
11506        });
11507        cx.executor().advance_clock(Duration::from_millis(250));
11508        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11509
11510        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11511        pane.update_in(cx, |pane, window, cx| {
11512            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11513        })
11514        .await
11515        .unwrap();
11516        assert!(!cx.has_pending_prompt());
11517        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11518
11519        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11520        workspace.update_in(cx, |workspace, window, cx| {
11521            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11522        });
11523        item.update_in(cx, |item, _window, cx| {
11524            item.is_dirty = true;
11525            for project_item in &mut item.project_items {
11526                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11527            }
11528        });
11529        cx.run_until_parked();
11530        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11531
11532        // Autosave on focus change, ensuring closing the tab counts as such.
11533        item.update(cx, |item, cx| {
11534            SettingsStore::update_global(cx, |settings, cx| {
11535                settings.update_user_settings(cx, |settings| {
11536                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11537                })
11538            });
11539            item.is_dirty = true;
11540            for project_item in &mut item.project_items {
11541                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11542            }
11543        });
11544
11545        pane.update_in(cx, |pane, window, cx| {
11546            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11547        })
11548        .await
11549        .unwrap();
11550        assert!(!cx.has_pending_prompt());
11551        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11552
11553        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11554        workspace.update_in(cx, |workspace, window, cx| {
11555            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11556        });
11557        item.update_in(cx, |item, window, cx| {
11558            item.project_items[0].update(cx, |item, _| {
11559                item.entry_id = None;
11560            });
11561            item.is_dirty = true;
11562            window.blur();
11563        });
11564        cx.run_until_parked();
11565        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11566
11567        // Ensure autosave is prevented for deleted files also when closing the buffer.
11568        let _close_items = pane.update_in(cx, |pane, window, cx| {
11569            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11570        });
11571        cx.run_until_parked();
11572        assert!(cx.has_pending_prompt());
11573        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11574    }
11575
11576    #[gpui::test]
11577    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11578        init_test(cx);
11579
11580        let fs = FakeFs::new(cx.executor());
11581        let project = Project::test(fs, [], cx).await;
11582        let (workspace, cx) =
11583            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11584
11585        // Create a multibuffer-like item with two child focus handles,
11586        // simulating individual buffer editors within a multibuffer.
11587        let item = cx.new(|cx| {
11588            TestItem::new(cx)
11589                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11590                .with_child_focus_handles(2, cx)
11591        });
11592        workspace.update_in(cx, |workspace, window, cx| {
11593            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11594        });
11595
11596        // Set autosave to OnFocusChange and focus the first child handle,
11597        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11598        item.update_in(cx, |item, window, cx| {
11599            SettingsStore::update_global(cx, |settings, cx| {
11600                settings.update_user_settings(cx, |settings| {
11601                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11602                })
11603            });
11604            item.is_dirty = true;
11605            window.focus(&item.child_focus_handles[0], cx);
11606        });
11607        cx.executor().run_until_parked();
11608        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11609
11610        // Moving focus from one child to another within the same item should
11611        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11612        item.update_in(cx, |item, window, cx| {
11613            window.focus(&item.child_focus_handles[1], cx);
11614        });
11615        cx.executor().run_until_parked();
11616        item.read_with(cx, |item, _| {
11617            assert_eq!(
11618                item.save_count, 0,
11619                "Switching focus between children within the same item should not autosave"
11620            );
11621        });
11622
11623        // Blurring the item saves the file. This is the core regression scenario:
11624        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11625        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11626        // the leaf is always a child focus handle, so `on_blur` never detected
11627        // focus leaving the item.
11628        item.update_in(cx, |_, window, _| window.blur());
11629        cx.executor().run_until_parked();
11630        item.read_with(cx, |item, _| {
11631            assert_eq!(
11632                item.save_count, 1,
11633                "Blurring should trigger autosave when focus was on a child of the item"
11634            );
11635        });
11636
11637        // Deactivating the window should also trigger autosave when a child of
11638        // the multibuffer item currently owns focus.
11639        item.update_in(cx, |item, window, cx| {
11640            item.is_dirty = true;
11641            window.focus(&item.child_focus_handles[0], cx);
11642        });
11643        cx.executor().run_until_parked();
11644        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11645
11646        cx.deactivate_window();
11647        item.read_with(cx, |item, _| {
11648            assert_eq!(
11649                item.save_count, 2,
11650                "Deactivating window should trigger autosave when focus was on a child"
11651            );
11652        });
11653    }
11654
11655    #[gpui::test]
11656    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11657        init_test(cx);
11658
11659        let fs = FakeFs::new(cx.executor());
11660
11661        let project = Project::test(fs, [], cx).await;
11662        let (workspace, cx) =
11663            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11664
11665        let item = cx.new(|cx| {
11666            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11667        });
11668        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11669        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11670        let toolbar_notify_count = Rc::new(RefCell::new(0));
11671
11672        workspace.update_in(cx, |workspace, window, cx| {
11673            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11674            let toolbar_notification_count = toolbar_notify_count.clone();
11675            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11676                *toolbar_notification_count.borrow_mut() += 1
11677            })
11678            .detach();
11679        });
11680
11681        pane.read_with(cx, |pane, _| {
11682            assert!(!pane.can_navigate_backward());
11683            assert!(!pane.can_navigate_forward());
11684        });
11685
11686        item.update_in(cx, |item, _, cx| {
11687            item.set_state("one".to_string(), cx);
11688        });
11689
11690        // Toolbar must be notified to re-render the navigation buttons
11691        assert_eq!(*toolbar_notify_count.borrow(), 1);
11692
11693        pane.read_with(cx, |pane, _| {
11694            assert!(pane.can_navigate_backward());
11695            assert!(!pane.can_navigate_forward());
11696        });
11697
11698        workspace
11699            .update_in(cx, |workspace, window, cx| {
11700                workspace.go_back(pane.downgrade(), window, cx)
11701            })
11702            .await
11703            .unwrap();
11704
11705        assert_eq!(*toolbar_notify_count.borrow(), 2);
11706        pane.read_with(cx, |pane, _| {
11707            assert!(!pane.can_navigate_backward());
11708            assert!(pane.can_navigate_forward());
11709        });
11710    }
11711
11712    /// Tests that the navigation history deduplicates entries for the same item.
11713    ///
11714    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11715    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11716    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11717    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11718    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11719    ///
11720    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11721    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11722    #[gpui::test]
11723    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11724        init_test(cx);
11725
11726        let fs = FakeFs::new(cx.executor());
11727        let project = Project::test(fs, [], cx).await;
11728        let (workspace, cx) =
11729            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11730
11731        let item_a = cx.new(|cx| {
11732            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11733        });
11734        let item_b = cx.new(|cx| {
11735            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11736        });
11737        let item_c = cx.new(|cx| {
11738            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11739        });
11740
11741        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11742
11743        workspace.update_in(cx, |workspace, window, cx| {
11744            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11745            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11746            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11747        });
11748
11749        workspace.update_in(cx, |workspace, window, cx| {
11750            workspace.activate_item(&item_a, false, false, window, cx);
11751        });
11752        cx.run_until_parked();
11753
11754        workspace.update_in(cx, |workspace, window, cx| {
11755            workspace.activate_item(&item_b, false, false, window, cx);
11756        });
11757        cx.run_until_parked();
11758
11759        workspace.update_in(cx, |workspace, window, cx| {
11760            workspace.activate_item(&item_a, false, false, window, cx);
11761        });
11762        cx.run_until_parked();
11763
11764        workspace.update_in(cx, |workspace, window, cx| {
11765            workspace.activate_item(&item_b, false, false, window, cx);
11766        });
11767        cx.run_until_parked();
11768
11769        workspace.update_in(cx, |workspace, window, cx| {
11770            workspace.activate_item(&item_a, false, false, window, cx);
11771        });
11772        cx.run_until_parked();
11773
11774        workspace.update_in(cx, |workspace, window, cx| {
11775            workspace.activate_item(&item_b, false, false, window, cx);
11776        });
11777        cx.run_until_parked();
11778
11779        workspace.update_in(cx, |workspace, window, cx| {
11780            workspace.activate_item(&item_c, false, false, window, cx);
11781        });
11782        cx.run_until_parked();
11783
11784        let backward_count = pane.read_with(cx, |pane, cx| {
11785            let mut count = 0;
11786            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11787                count += 1;
11788            });
11789            count
11790        });
11791        assert!(
11792            backward_count <= 4,
11793            "Should have at most 4 entries, got {}",
11794            backward_count
11795        );
11796
11797        workspace
11798            .update_in(cx, |workspace, window, cx| {
11799                workspace.go_back(pane.downgrade(), window, cx)
11800            })
11801            .await
11802            .unwrap();
11803
11804        let active_item = workspace.read_with(cx, |workspace, cx| {
11805            workspace.active_item(cx).unwrap().item_id()
11806        });
11807        assert_eq!(
11808            active_item,
11809            item_b.entity_id(),
11810            "After first go_back, should be at item B"
11811        );
11812
11813        workspace
11814            .update_in(cx, |workspace, window, cx| {
11815                workspace.go_back(pane.downgrade(), window, cx)
11816            })
11817            .await
11818            .unwrap();
11819
11820        let active_item = workspace.read_with(cx, |workspace, cx| {
11821            workspace.active_item(cx).unwrap().item_id()
11822        });
11823        assert_eq!(
11824            active_item,
11825            item_a.entity_id(),
11826            "After second go_back, should be at item A"
11827        );
11828
11829        pane.read_with(cx, |pane, _| {
11830            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11831        });
11832    }
11833
11834    #[gpui::test]
11835    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11836        init_test(cx);
11837        let fs = FakeFs::new(cx.executor());
11838        let project = Project::test(fs, [], cx).await;
11839        let (multi_workspace, cx) =
11840            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11841        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11842
11843        workspace.update_in(cx, |workspace, window, cx| {
11844            let first_item = cx.new(|cx| {
11845                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11846            });
11847            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11848            workspace.split_pane(
11849                workspace.active_pane().clone(),
11850                SplitDirection::Right,
11851                window,
11852                cx,
11853            );
11854            workspace.split_pane(
11855                workspace.active_pane().clone(),
11856                SplitDirection::Right,
11857                window,
11858                cx,
11859            );
11860        });
11861
11862        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11863            let panes = workspace.center.panes();
11864            assert!(panes.len() >= 2);
11865            (
11866                panes.first().expect("at least one pane").entity_id(),
11867                panes.last().expect("at least one pane").entity_id(),
11868            )
11869        });
11870
11871        workspace.update_in(cx, |workspace, window, cx| {
11872            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11873        });
11874        workspace.update(cx, |workspace, _| {
11875            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11876            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11877        });
11878
11879        cx.dispatch_action(ActivateLastPane);
11880
11881        workspace.update(cx, |workspace, _| {
11882            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11883        });
11884    }
11885
11886    #[gpui::test]
11887    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11888        init_test(cx);
11889        let fs = FakeFs::new(cx.executor());
11890
11891        let project = Project::test(fs, [], cx).await;
11892        let (workspace, cx) =
11893            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11894
11895        let panel = workspace.update_in(cx, |workspace, window, cx| {
11896            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11897            workspace.add_panel(panel.clone(), window, cx);
11898
11899            workspace
11900                .right_dock()
11901                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11902
11903            panel
11904        });
11905
11906        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11907        pane.update_in(cx, |pane, window, cx| {
11908            let item = cx.new(TestItem::new);
11909            pane.add_item(Box::new(item), true, true, None, window, cx);
11910        });
11911
11912        // Transfer focus from center to panel
11913        workspace.update_in(cx, |workspace, window, cx| {
11914            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11915        });
11916
11917        workspace.update_in(cx, |workspace, window, cx| {
11918            assert!(workspace.right_dock().read(cx).is_open());
11919            assert!(!panel.is_zoomed(window, cx));
11920            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11921        });
11922
11923        // Transfer focus from panel to center
11924        workspace.update_in(cx, |workspace, window, cx| {
11925            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11926        });
11927
11928        workspace.update_in(cx, |workspace, window, cx| {
11929            assert!(workspace.right_dock().read(cx).is_open());
11930            assert!(!panel.is_zoomed(window, cx));
11931            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11932            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11933        });
11934
11935        // Close the dock
11936        workspace.update_in(cx, |workspace, window, cx| {
11937            workspace.toggle_dock(DockPosition::Right, window, cx);
11938        });
11939
11940        workspace.update_in(cx, |workspace, window, cx| {
11941            assert!(!workspace.right_dock().read(cx).is_open());
11942            assert!(!panel.is_zoomed(window, cx));
11943            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11944            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11945        });
11946
11947        // Open the dock
11948        workspace.update_in(cx, |workspace, window, cx| {
11949            workspace.toggle_dock(DockPosition::Right, window, cx);
11950        });
11951
11952        workspace.update_in(cx, |workspace, window, cx| {
11953            assert!(workspace.right_dock().read(cx).is_open());
11954            assert!(!panel.is_zoomed(window, cx));
11955            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11956        });
11957
11958        // Focus and zoom panel
11959        panel.update_in(cx, |panel, window, cx| {
11960            cx.focus_self(window);
11961            panel.set_zoomed(true, window, cx)
11962        });
11963
11964        workspace.update_in(cx, |workspace, window, cx| {
11965            assert!(workspace.right_dock().read(cx).is_open());
11966            assert!(panel.is_zoomed(window, cx));
11967            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11968        });
11969
11970        // Transfer focus to the center closes the dock
11971        workspace.update_in(cx, |workspace, window, cx| {
11972            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11973        });
11974
11975        workspace.update_in(cx, |workspace, window, cx| {
11976            assert!(!workspace.right_dock().read(cx).is_open());
11977            assert!(panel.is_zoomed(window, cx));
11978            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11979        });
11980
11981        // Transferring focus back to the panel keeps it zoomed
11982        workspace.update_in(cx, |workspace, window, cx| {
11983            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11984        });
11985
11986        workspace.update_in(cx, |workspace, window, cx| {
11987            assert!(workspace.right_dock().read(cx).is_open());
11988            assert!(panel.is_zoomed(window, cx));
11989            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11990        });
11991
11992        // Close the dock while it is zoomed
11993        workspace.update_in(cx, |workspace, window, cx| {
11994            workspace.toggle_dock(DockPosition::Right, window, cx)
11995        });
11996
11997        workspace.update_in(cx, |workspace, window, cx| {
11998            assert!(!workspace.right_dock().read(cx).is_open());
11999            assert!(panel.is_zoomed(window, cx));
12000            assert!(workspace.zoomed.is_none());
12001            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12002        });
12003
12004        // Opening the dock, when it's zoomed, retains focus
12005        workspace.update_in(cx, |workspace, window, cx| {
12006            workspace.toggle_dock(DockPosition::Right, window, cx)
12007        });
12008
12009        workspace.update_in(cx, |workspace, window, cx| {
12010            assert!(workspace.right_dock().read(cx).is_open());
12011            assert!(panel.is_zoomed(window, cx));
12012            assert!(workspace.zoomed.is_some());
12013            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12014        });
12015
12016        // Unzoom and close the panel, zoom the active pane.
12017        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
12018        workspace.update_in(cx, |workspace, window, cx| {
12019            workspace.toggle_dock(DockPosition::Right, window, cx)
12020        });
12021        pane.update_in(cx, |pane, window, cx| {
12022            pane.toggle_zoom(&Default::default(), window, cx)
12023        });
12024
12025        // Opening a dock unzooms the pane.
12026        workspace.update_in(cx, |workspace, window, cx| {
12027            workspace.toggle_dock(DockPosition::Right, window, cx)
12028        });
12029        workspace.update_in(cx, |workspace, window, cx| {
12030            let pane = pane.read(cx);
12031            assert!(!pane.is_zoomed());
12032            assert!(!pane.focus_handle(cx).is_focused(window));
12033            assert!(workspace.right_dock().read(cx).is_open());
12034            assert!(workspace.zoomed.is_none());
12035        });
12036    }
12037
12038    #[gpui::test]
12039    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
12040        init_test(cx);
12041        let fs = FakeFs::new(cx.executor());
12042
12043        let project = Project::test(fs, [], cx).await;
12044        let (workspace, cx) =
12045            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12046
12047        let panel = workspace.update_in(cx, |workspace, window, cx| {
12048            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12049            workspace.add_panel(panel.clone(), window, cx);
12050            panel
12051        });
12052
12053        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12054        pane.update_in(cx, |pane, window, cx| {
12055            let item = cx.new(TestItem::new);
12056            pane.add_item(Box::new(item), true, true, None, window, cx);
12057        });
12058
12059        // Enable close_panel_on_toggle
12060        cx.update_global(|store: &mut SettingsStore, cx| {
12061            store.update_user_settings(cx, |settings| {
12062                settings.workspace.close_panel_on_toggle = Some(true);
12063            });
12064        });
12065
12066        // Panel starts closed. Toggling should open and focus it.
12067        workspace.update_in(cx, |workspace, window, cx| {
12068            assert!(!workspace.right_dock().read(cx).is_open());
12069            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12070        });
12071
12072        workspace.update_in(cx, |workspace, window, cx| {
12073            assert!(
12074                workspace.right_dock().read(cx).is_open(),
12075                "Dock should be open after toggling from center"
12076            );
12077            assert!(
12078                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12079                "Panel should be focused after toggling from center"
12080            );
12081        });
12082
12083        // Panel is open and focused. Toggling should close the panel and
12084        // return focus to the center.
12085        workspace.update_in(cx, |workspace, window, cx| {
12086            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12087        });
12088
12089        workspace.update_in(cx, |workspace, window, cx| {
12090            assert!(
12091                !workspace.right_dock().read(cx).is_open(),
12092                "Dock should be closed after toggling from focused panel"
12093            );
12094            assert!(
12095                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12096                "Panel should not be focused after toggling from focused panel"
12097            );
12098        });
12099
12100        // Open the dock and focus something else so the panel is open but not
12101        // focused. Toggling should focus the panel (not close it).
12102        workspace.update_in(cx, |workspace, window, cx| {
12103            workspace
12104                .right_dock()
12105                .update(cx, |dock, cx| dock.set_open(true, window, cx));
12106            window.focus(&pane.read(cx).focus_handle(cx), cx);
12107        });
12108
12109        workspace.update_in(cx, |workspace, window, cx| {
12110            assert!(workspace.right_dock().read(cx).is_open());
12111            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12112            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12113        });
12114
12115        workspace.update_in(cx, |workspace, window, cx| {
12116            assert!(
12117                workspace.right_dock().read(cx).is_open(),
12118                "Dock should remain open when toggling focuses an open-but-unfocused panel"
12119            );
12120            assert!(
12121                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12122                "Panel should be focused after toggling an open-but-unfocused panel"
12123            );
12124        });
12125
12126        // Now disable the setting and verify the original behavior: toggling
12127        // from a focused panel moves focus to center but leaves the dock open.
12128        cx.update_global(|store: &mut SettingsStore, cx| {
12129            store.update_user_settings(cx, |settings| {
12130                settings.workspace.close_panel_on_toggle = Some(false);
12131            });
12132        });
12133
12134        workspace.update_in(cx, |workspace, window, cx| {
12135            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12136        });
12137
12138        workspace.update_in(cx, |workspace, window, cx| {
12139            assert!(
12140                workspace.right_dock().read(cx).is_open(),
12141                "Dock should remain open when setting is disabled"
12142            );
12143            assert!(
12144                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12145                "Panel should not be focused after toggling with setting disabled"
12146            );
12147        });
12148    }
12149
12150    #[gpui::test]
12151    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
12152        init_test(cx);
12153        let fs = FakeFs::new(cx.executor());
12154
12155        let project = Project::test(fs, [], cx).await;
12156        let (workspace, cx) =
12157            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12158
12159        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
12160            workspace.active_pane().clone()
12161        });
12162
12163        // Add an item to the pane so it can be zoomed
12164        workspace.update_in(cx, |workspace, window, cx| {
12165            let item = cx.new(TestItem::new);
12166            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
12167        });
12168
12169        // Initially not zoomed
12170        workspace.update_in(cx, |workspace, _window, cx| {
12171            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
12172            assert!(
12173                workspace.zoomed.is_none(),
12174                "Workspace should track no zoomed pane"
12175            );
12176            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
12177        });
12178
12179        // Zoom In
12180        pane.update_in(cx, |pane, window, cx| {
12181            pane.zoom_in(&crate::ZoomIn, window, cx);
12182        });
12183
12184        workspace.update_in(cx, |workspace, window, cx| {
12185            assert!(
12186                pane.read(cx).is_zoomed(),
12187                "Pane should be zoomed after ZoomIn"
12188            );
12189            assert!(
12190                workspace.zoomed.is_some(),
12191                "Workspace should track the zoomed pane"
12192            );
12193            assert!(
12194                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
12195                "ZoomIn should focus the pane"
12196            );
12197        });
12198
12199        // Zoom In again is a no-op
12200        pane.update_in(cx, |pane, window, cx| {
12201            pane.zoom_in(&crate::ZoomIn, window, cx);
12202        });
12203
12204        workspace.update_in(cx, |workspace, window, cx| {
12205            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
12206            assert!(
12207                workspace.zoomed.is_some(),
12208                "Workspace still tracks zoomed pane"
12209            );
12210            assert!(
12211                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
12212                "Pane remains focused after repeated ZoomIn"
12213            );
12214        });
12215
12216        // Zoom Out
12217        pane.update_in(cx, |pane, window, cx| {
12218            pane.zoom_out(&crate::ZoomOut, window, cx);
12219        });
12220
12221        workspace.update_in(cx, |workspace, _window, cx| {
12222            assert!(
12223                !pane.read(cx).is_zoomed(),
12224                "Pane should unzoom after ZoomOut"
12225            );
12226            assert!(
12227                workspace.zoomed.is_none(),
12228                "Workspace clears zoom tracking after ZoomOut"
12229            );
12230        });
12231
12232        // Zoom Out again is a no-op
12233        pane.update_in(cx, |pane, window, cx| {
12234            pane.zoom_out(&crate::ZoomOut, window, cx);
12235        });
12236
12237        workspace.update_in(cx, |workspace, _window, cx| {
12238            assert!(
12239                !pane.read(cx).is_zoomed(),
12240                "Second ZoomOut keeps pane unzoomed"
12241            );
12242            assert!(
12243                workspace.zoomed.is_none(),
12244                "Workspace remains without zoomed pane"
12245            );
12246        });
12247    }
12248
12249    #[gpui::test]
12250    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
12251        init_test(cx);
12252        let fs = FakeFs::new(cx.executor());
12253
12254        let project = Project::test(fs, [], cx).await;
12255        let (workspace, cx) =
12256            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12257        workspace.update_in(cx, |workspace, window, cx| {
12258            // Open two docks
12259            let left_dock = workspace.dock_at_position(DockPosition::Left);
12260            let right_dock = workspace.dock_at_position(DockPosition::Right);
12261
12262            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12263            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12264
12265            assert!(left_dock.read(cx).is_open());
12266            assert!(right_dock.read(cx).is_open());
12267        });
12268
12269        workspace.update_in(cx, |workspace, window, cx| {
12270            // Toggle all docks - should close both
12271            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12272
12273            let left_dock = workspace.dock_at_position(DockPosition::Left);
12274            let right_dock = workspace.dock_at_position(DockPosition::Right);
12275            assert!(!left_dock.read(cx).is_open());
12276            assert!(!right_dock.read(cx).is_open());
12277        });
12278
12279        workspace.update_in(cx, |workspace, window, cx| {
12280            // Toggle again - should reopen both
12281            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12282
12283            let left_dock = workspace.dock_at_position(DockPosition::Left);
12284            let right_dock = workspace.dock_at_position(DockPosition::Right);
12285            assert!(left_dock.read(cx).is_open());
12286            assert!(right_dock.read(cx).is_open());
12287        });
12288    }
12289
12290    #[gpui::test]
12291    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
12292        init_test(cx);
12293        let fs = FakeFs::new(cx.executor());
12294
12295        let project = Project::test(fs, [], cx).await;
12296        let (workspace, cx) =
12297            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12298        workspace.update_in(cx, |workspace, window, cx| {
12299            // Open two docks
12300            let left_dock = workspace.dock_at_position(DockPosition::Left);
12301            let right_dock = workspace.dock_at_position(DockPosition::Right);
12302
12303            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12304            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12305
12306            assert!(left_dock.read(cx).is_open());
12307            assert!(right_dock.read(cx).is_open());
12308        });
12309
12310        workspace.update_in(cx, |workspace, window, cx| {
12311            // Close them manually
12312            workspace.toggle_dock(DockPosition::Left, window, cx);
12313            workspace.toggle_dock(DockPosition::Right, window, cx);
12314
12315            let left_dock = workspace.dock_at_position(DockPosition::Left);
12316            let right_dock = workspace.dock_at_position(DockPosition::Right);
12317            assert!(!left_dock.read(cx).is_open());
12318            assert!(!right_dock.read(cx).is_open());
12319        });
12320
12321        workspace.update_in(cx, |workspace, window, cx| {
12322            // Toggle all docks - only last closed (right dock) should reopen
12323            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12324
12325            let left_dock = workspace.dock_at_position(DockPosition::Left);
12326            let right_dock = workspace.dock_at_position(DockPosition::Right);
12327            assert!(!left_dock.read(cx).is_open());
12328            assert!(right_dock.read(cx).is_open());
12329        });
12330    }
12331
12332    #[gpui::test]
12333    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
12334        init_test(cx);
12335        let fs = FakeFs::new(cx.executor());
12336        let project = Project::test(fs, [], cx).await;
12337        let (multi_workspace, cx) =
12338            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12339        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12340
12341        // Open two docks (left and right) with one panel each
12342        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
12343            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12344            workspace.add_panel(left_panel.clone(), window, cx);
12345
12346            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12347            workspace.add_panel(right_panel.clone(), window, cx);
12348
12349            workspace.toggle_dock(DockPosition::Left, window, cx);
12350            workspace.toggle_dock(DockPosition::Right, window, cx);
12351
12352            // Verify initial state
12353            assert!(
12354                workspace.left_dock().read(cx).is_open(),
12355                "Left dock should be open"
12356            );
12357            assert_eq!(
12358                workspace
12359                    .left_dock()
12360                    .read(cx)
12361                    .visible_panel()
12362                    .unwrap()
12363                    .panel_id(),
12364                left_panel.panel_id(),
12365                "Left panel should be visible in left dock"
12366            );
12367            assert!(
12368                workspace.right_dock().read(cx).is_open(),
12369                "Right dock should be open"
12370            );
12371            assert_eq!(
12372                workspace
12373                    .right_dock()
12374                    .read(cx)
12375                    .visible_panel()
12376                    .unwrap()
12377                    .panel_id(),
12378                right_panel.panel_id(),
12379                "Right panel should be visible in right dock"
12380            );
12381            assert!(
12382                !workspace.bottom_dock().read(cx).is_open(),
12383                "Bottom dock should be closed"
12384            );
12385
12386            (left_panel, right_panel)
12387        });
12388
12389        // Focus the left panel and move it to the next position (bottom dock)
12390        workspace.update_in(cx, |workspace, window, cx| {
12391            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
12392            assert!(
12393                left_panel.read(cx).focus_handle(cx).is_focused(window),
12394                "Left panel should be focused"
12395            );
12396        });
12397
12398        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12399
12400        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
12401        workspace.update(cx, |workspace, cx| {
12402            assert!(
12403                !workspace.left_dock().read(cx).is_open(),
12404                "Left dock should be closed"
12405            );
12406            assert!(
12407                workspace.bottom_dock().read(cx).is_open(),
12408                "Bottom dock should now be open"
12409            );
12410            assert_eq!(
12411                left_panel.read(cx).position,
12412                DockPosition::Bottom,
12413                "Left panel should now be in the bottom dock"
12414            );
12415            assert_eq!(
12416                workspace
12417                    .bottom_dock()
12418                    .read(cx)
12419                    .visible_panel()
12420                    .unwrap()
12421                    .panel_id(),
12422                left_panel.panel_id(),
12423                "Left panel should be the visible panel in the bottom dock"
12424            );
12425        });
12426
12427        // Toggle all docks off
12428        workspace.update_in(cx, |workspace, window, cx| {
12429            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12430            assert!(
12431                !workspace.left_dock().read(cx).is_open(),
12432                "Left dock should be closed"
12433            );
12434            assert!(
12435                !workspace.right_dock().read(cx).is_open(),
12436                "Right dock should be closed"
12437            );
12438            assert!(
12439                !workspace.bottom_dock().read(cx).is_open(),
12440                "Bottom dock should be closed"
12441            );
12442        });
12443
12444        // Toggle all docks back on and verify positions are restored
12445        workspace.update_in(cx, |workspace, window, cx| {
12446            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12447            assert!(
12448                !workspace.left_dock().read(cx).is_open(),
12449                "Left dock should remain closed"
12450            );
12451            assert!(
12452                workspace.right_dock().read(cx).is_open(),
12453                "Right dock should remain open"
12454            );
12455            assert!(
12456                workspace.bottom_dock().read(cx).is_open(),
12457                "Bottom dock should remain open"
12458            );
12459            assert_eq!(
12460                left_panel.read(cx).position,
12461                DockPosition::Bottom,
12462                "Left panel should remain in the bottom dock"
12463            );
12464            assert_eq!(
12465                right_panel.read(cx).position,
12466                DockPosition::Right,
12467                "Right panel should remain in the right dock"
12468            );
12469            assert_eq!(
12470                workspace
12471                    .bottom_dock()
12472                    .read(cx)
12473                    .visible_panel()
12474                    .unwrap()
12475                    .panel_id(),
12476                left_panel.panel_id(),
12477                "Left panel should be the visible panel in the right dock"
12478            );
12479        });
12480    }
12481
12482    #[gpui::test]
12483    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
12484        init_test(cx);
12485
12486        let fs = FakeFs::new(cx.executor());
12487
12488        let project = Project::test(fs, None, cx).await;
12489        let (workspace, cx) =
12490            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12491
12492        // Let's arrange the panes like this:
12493        //
12494        // +-----------------------+
12495        // |         top           |
12496        // +------+--------+-------+
12497        // | left | center | right |
12498        // +------+--------+-------+
12499        // |        bottom         |
12500        // +-----------------------+
12501
12502        let top_item = cx.new(|cx| {
12503            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12504        });
12505        let bottom_item = cx.new(|cx| {
12506            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12507        });
12508        let left_item = cx.new(|cx| {
12509            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12510        });
12511        let right_item = cx.new(|cx| {
12512            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12513        });
12514        let center_item = cx.new(|cx| {
12515            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12516        });
12517
12518        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12519            let top_pane_id = workspace.active_pane().entity_id();
12520            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12521            workspace.split_pane(
12522                workspace.active_pane().clone(),
12523                SplitDirection::Down,
12524                window,
12525                cx,
12526            );
12527            top_pane_id
12528        });
12529        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12530            let bottom_pane_id = workspace.active_pane().entity_id();
12531            workspace.add_item_to_active_pane(
12532                Box::new(bottom_item.clone()),
12533                None,
12534                false,
12535                window,
12536                cx,
12537            );
12538            workspace.split_pane(
12539                workspace.active_pane().clone(),
12540                SplitDirection::Up,
12541                window,
12542                cx,
12543            );
12544            bottom_pane_id
12545        });
12546        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12547            let left_pane_id = workspace.active_pane().entity_id();
12548            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12549            workspace.split_pane(
12550                workspace.active_pane().clone(),
12551                SplitDirection::Right,
12552                window,
12553                cx,
12554            );
12555            left_pane_id
12556        });
12557        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12558            let right_pane_id = workspace.active_pane().entity_id();
12559            workspace.add_item_to_active_pane(
12560                Box::new(right_item.clone()),
12561                None,
12562                false,
12563                window,
12564                cx,
12565            );
12566            workspace.split_pane(
12567                workspace.active_pane().clone(),
12568                SplitDirection::Left,
12569                window,
12570                cx,
12571            );
12572            right_pane_id
12573        });
12574        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12575            let center_pane_id = workspace.active_pane().entity_id();
12576            workspace.add_item_to_active_pane(
12577                Box::new(center_item.clone()),
12578                None,
12579                false,
12580                window,
12581                cx,
12582            );
12583            center_pane_id
12584        });
12585        cx.executor().run_until_parked();
12586
12587        workspace.update_in(cx, |workspace, window, cx| {
12588            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12589
12590            // Join into next from center pane into right
12591            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12592        });
12593
12594        workspace.update_in(cx, |workspace, window, cx| {
12595            let active_pane = workspace.active_pane();
12596            assert_eq!(right_pane_id, active_pane.entity_id());
12597            assert_eq!(2, active_pane.read(cx).items_len());
12598            let item_ids_in_pane =
12599                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12600            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12601            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12602
12603            // Join into next from right pane into bottom
12604            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12605        });
12606
12607        workspace.update_in(cx, |workspace, window, cx| {
12608            let active_pane = workspace.active_pane();
12609            assert_eq!(bottom_pane_id, active_pane.entity_id());
12610            assert_eq!(3, active_pane.read(cx).items_len());
12611            let item_ids_in_pane =
12612                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12613            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12614            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12615            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12616
12617            // Join into next from bottom pane into left
12618            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12619        });
12620
12621        workspace.update_in(cx, |workspace, window, cx| {
12622            let active_pane = workspace.active_pane();
12623            assert_eq!(left_pane_id, active_pane.entity_id());
12624            assert_eq!(4, active_pane.read(cx).items_len());
12625            let item_ids_in_pane =
12626                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12627            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12628            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12629            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12630            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12631
12632            // Join into next from left pane into top
12633            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12634        });
12635
12636        workspace.update_in(cx, |workspace, window, cx| {
12637            let active_pane = workspace.active_pane();
12638            assert_eq!(top_pane_id, active_pane.entity_id());
12639            assert_eq!(5, active_pane.read(cx).items_len());
12640            let item_ids_in_pane =
12641                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12642            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12643            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12644            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12645            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12646            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12647
12648            // Single pane left: no-op
12649            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12650        });
12651
12652        workspace.update(cx, |workspace, _cx| {
12653            let active_pane = workspace.active_pane();
12654            assert_eq!(top_pane_id, active_pane.entity_id());
12655        });
12656    }
12657
12658    fn add_an_item_to_active_pane(
12659        cx: &mut VisualTestContext,
12660        workspace: &Entity<Workspace>,
12661        item_id: u64,
12662    ) -> Entity<TestItem> {
12663        let item = cx.new(|cx| {
12664            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12665                item_id,
12666                "item{item_id}.txt",
12667                cx,
12668            )])
12669        });
12670        workspace.update_in(cx, |workspace, window, cx| {
12671            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12672        });
12673        item
12674    }
12675
12676    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12677        workspace.update_in(cx, |workspace, window, cx| {
12678            workspace.split_pane(
12679                workspace.active_pane().clone(),
12680                SplitDirection::Right,
12681                window,
12682                cx,
12683            )
12684        })
12685    }
12686
12687    #[gpui::test]
12688    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12689        init_test(cx);
12690        let fs = FakeFs::new(cx.executor());
12691        let project = Project::test(fs, None, cx).await;
12692        let (workspace, cx) =
12693            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12694
12695        add_an_item_to_active_pane(cx, &workspace, 1);
12696        split_pane(cx, &workspace);
12697        add_an_item_to_active_pane(cx, &workspace, 2);
12698        split_pane(cx, &workspace); // empty pane
12699        split_pane(cx, &workspace);
12700        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12701
12702        cx.executor().run_until_parked();
12703
12704        workspace.update(cx, |workspace, cx| {
12705            let num_panes = workspace.panes().len();
12706            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12707            let active_item = workspace
12708                .active_pane()
12709                .read(cx)
12710                .active_item()
12711                .expect("item is in focus");
12712
12713            assert_eq!(num_panes, 4);
12714            assert_eq!(num_items_in_current_pane, 1);
12715            assert_eq!(active_item.item_id(), last_item.item_id());
12716        });
12717
12718        workspace.update_in(cx, |workspace, window, cx| {
12719            workspace.join_all_panes(window, cx);
12720        });
12721
12722        workspace.update(cx, |workspace, cx| {
12723            let num_panes = workspace.panes().len();
12724            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12725            let active_item = workspace
12726                .active_pane()
12727                .read(cx)
12728                .active_item()
12729                .expect("item is in focus");
12730
12731            assert_eq!(num_panes, 1);
12732            assert_eq!(num_items_in_current_pane, 3);
12733            assert_eq!(active_item.item_id(), last_item.item_id());
12734        });
12735    }
12736
12737    #[gpui::test]
12738    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12739        init_test(cx);
12740        let fs = FakeFs::new(cx.executor());
12741
12742        let project = Project::test(fs, [], cx).await;
12743        let (multi_workspace, cx) =
12744            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12745        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12746
12747        workspace.update(cx, |workspace, _cx| {
12748            workspace.set_random_database_id();
12749        });
12750
12751        workspace.update_in(cx, |workspace, window, cx| {
12752            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12753            workspace.add_panel(panel.clone(), window, cx);
12754            workspace.toggle_dock(DockPosition::Right, window, cx);
12755
12756            let right_dock = workspace.right_dock().clone();
12757            right_dock.update(cx, |dock, cx| {
12758                dock.set_panel_size_state(
12759                    &panel,
12760                    dock::PanelSizeState {
12761                        size: None,
12762                        flex: Some(1.0),
12763                    },
12764                    cx,
12765                );
12766            });
12767        });
12768
12769        workspace.update_in(cx, |workspace, window, cx| {
12770            let item = cx.new(|cx| {
12771                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12772            });
12773            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12774            workspace.bounds.size.width = px(1920.);
12775
12776            let dock = workspace.right_dock().read(cx);
12777            let initial_width = workspace
12778                .dock_size(&dock, window, cx)
12779                .expect("flexible dock should have an initial width");
12780
12781            assert_eq!(initial_width, px(960.));
12782        });
12783
12784        workspace.update_in(cx, |workspace, window, cx| {
12785            workspace.split_pane(
12786                workspace.active_pane().clone(),
12787                SplitDirection::Right,
12788                window,
12789                cx,
12790            );
12791
12792            let center_column_count = workspace.center.full_height_column_count();
12793            assert_eq!(center_column_count, 2);
12794
12795            let dock = workspace.right_dock().read(cx);
12796            assert_eq!(workspace.dock_size(&dock, window, cx).unwrap(), px(640.));
12797
12798            workspace.bounds.size.width = px(2400.);
12799
12800            let dock = workspace.right_dock().read(cx);
12801            assert_eq!(workspace.dock_size(&dock, window, cx).unwrap(), px(800.));
12802        });
12803    }
12804
12805    #[gpui::test]
12806    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12807        init_test(cx);
12808        let fs = FakeFs::new(cx.executor());
12809
12810        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12811        {
12812            let project = Project::test(fs.clone(), [], cx).await;
12813            let (multi_workspace, cx) =
12814                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12815            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12816
12817            workspace.update(cx, |workspace, _cx| {
12818                workspace.set_random_database_id();
12819                workspace.bounds.size.width = px(800.);
12820            });
12821
12822            let panel = workspace.update_in(cx, |workspace, window, cx| {
12823                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12824                workspace.add_panel(panel.clone(), window, cx);
12825                workspace.toggle_dock(DockPosition::Left, window, cx);
12826                panel
12827            });
12828
12829            workspace.update_in(cx, |workspace, window, cx| {
12830                workspace.resize_left_dock(px(350.), window, cx);
12831            });
12832
12833            cx.run_until_parked();
12834
12835            let persisted = workspace.read_with(cx, |workspace, cx| {
12836                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12837            });
12838            assert_eq!(
12839                persisted.and_then(|s| s.size),
12840                Some(px(350.)),
12841                "fixed-width panel size should be persisted to KVP"
12842            );
12843
12844            // Remove the panel and re-add a fresh instance with the same key.
12845            // The new instance should have its size state restored from KVP.
12846            workspace.update_in(cx, |workspace, window, cx| {
12847                workspace.remove_panel(&panel, window, cx);
12848            });
12849
12850            workspace.update_in(cx, |workspace, window, cx| {
12851                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12852                workspace.add_panel(new_panel, window, cx);
12853
12854                let left_dock = workspace.left_dock().read(cx);
12855                let size_state = left_dock
12856                    .panel::<TestPanel>()
12857                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12858                assert_eq!(
12859                    size_state.and_then(|s| s.size),
12860                    Some(px(350.)),
12861                    "re-added fixed-width panel should restore persisted size from KVP"
12862                );
12863            });
12864        }
12865
12866        // Flexible panel: both pixel size and ratio are persisted and restored.
12867        {
12868            let project = Project::test(fs.clone(), [], cx).await;
12869            let (multi_workspace, cx) =
12870                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12871            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12872
12873            workspace.update(cx, |workspace, _cx| {
12874                workspace.set_random_database_id();
12875                workspace.bounds.size.width = px(800.);
12876            });
12877
12878            let panel = workspace.update_in(cx, |workspace, window, cx| {
12879                let item = cx.new(|cx| {
12880                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12881                });
12882                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12883
12884                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12885                workspace.add_panel(panel.clone(), window, cx);
12886                workspace.toggle_dock(DockPosition::Right, window, cx);
12887                panel
12888            });
12889
12890            workspace.update_in(cx, |workspace, window, cx| {
12891                workspace.resize_right_dock(px(300.), window, cx);
12892            });
12893
12894            cx.run_until_parked();
12895
12896            let persisted = workspace
12897                .read_with(cx, |workspace, cx| {
12898                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12899                })
12900                .expect("flexible panel state should be persisted to KVP");
12901            assert_eq!(
12902                persisted.size, None,
12903                "flexible panel should not persist a redundant pixel size"
12904            );
12905            let original_ratio = persisted.flex.expect("panel's flex should be persisted");
12906
12907            // Remove the panel and re-add: both size and ratio should be restored.
12908            workspace.update_in(cx, |workspace, window, cx| {
12909                workspace.remove_panel(&panel, window, cx);
12910            });
12911
12912            workspace.update_in(cx, |workspace, window, cx| {
12913                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12914                workspace.add_panel(new_panel, window, cx);
12915
12916                let right_dock = workspace.right_dock().read(cx);
12917                let size_state = right_dock
12918                    .panel::<TestPanel>()
12919                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12920                    .expect("re-added flexible panel should have restored size state from KVP");
12921                assert_eq!(
12922                    size_state.size, None,
12923                    "re-added flexible panel should not have a persisted pixel size"
12924                );
12925                assert_eq!(
12926                    size_state.flex,
12927                    Some(original_ratio),
12928                    "re-added flexible panel should restore persisted flex"
12929                );
12930            });
12931        }
12932    }
12933
12934    #[gpui::test]
12935    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12936        init_test(cx);
12937        let fs = FakeFs::new(cx.executor());
12938
12939        let project = Project::test(fs, [], cx).await;
12940        let (multi_workspace, cx) =
12941            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12942        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12943
12944        workspace.update(cx, |workspace, _cx| {
12945            workspace.bounds.size.width = px(900.);
12946        });
12947
12948        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12949        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12950        // and the center pane each take half the workspace width.
12951        workspace.update_in(cx, |workspace, window, cx| {
12952            let item = cx.new(|cx| {
12953                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12954            });
12955            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12956
12957            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12958            workspace.add_panel(panel, window, cx);
12959            workspace.toggle_dock(DockPosition::Left, window, cx);
12960
12961            let left_dock = workspace.left_dock().read(cx);
12962            let left_width = workspace
12963                .dock_size(&left_dock, window, cx)
12964                .expect("left dock should have an active panel");
12965
12966            assert_eq!(
12967                left_width,
12968                workspace.bounds.size.width / 2.,
12969                "flexible left panel should split evenly with the center pane"
12970            );
12971        });
12972
12973        // Step 2: Split the center pane left/right. The flexible panel is treated as one
12974        // average center column, so with two center columns it should take one third of
12975        // the workspace width.
12976        workspace.update_in(cx, |workspace, window, cx| {
12977            workspace.split_pane(
12978                workspace.active_pane().clone(),
12979                SplitDirection::Right,
12980                window,
12981                cx,
12982            );
12983
12984            let left_dock = workspace.left_dock().read(cx);
12985            let left_width = workspace
12986                .dock_size(&left_dock, window, cx)
12987                .expect("left dock should still have an active panel after horizontal split");
12988
12989            assert_eq!(
12990                left_width,
12991                workspace.bounds.size.width / 3.,
12992                "flexible left panel width should match the average center column width"
12993            );
12994        });
12995
12996        // Step 3: Split the active center pane vertically (top/bottom). Vertical splits do
12997        // not change the number of center columns, so the flexible panel width stays the same.
12998        workspace.update_in(cx, |workspace, window, cx| {
12999            workspace.split_pane(
13000                workspace.active_pane().clone(),
13001                SplitDirection::Down,
13002                window,
13003                cx,
13004            );
13005
13006            let left_dock = workspace.left_dock().read(cx);
13007            let left_width = workspace
13008                .dock_size(&left_dock, window, cx)
13009                .expect("left dock should still have an active panel after vertical split");
13010
13011            assert_eq!(
13012                left_width,
13013                workspace.bounds.size.width / 3.,
13014                "flexible left panel width should still match the average center column width"
13015            );
13016        });
13017
13018        // Step 4: Open a fixed-width panel in the right dock. The right dock's default
13019        // size reduces the available width, so the flexible left panel keeps matching one
13020        // average center column within the remaining space.
13021        workspace.update_in(cx, |workspace, window, cx| {
13022            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
13023            workspace.add_panel(panel, window, cx);
13024            workspace.toggle_dock(DockPosition::Right, window, cx);
13025
13026            let right_dock = workspace.right_dock().read(cx);
13027            let right_width = workspace
13028                .dock_size(&right_dock, window, cx)
13029                .expect("right dock should have an active panel");
13030
13031            let left_dock = workspace.left_dock().read(cx);
13032            let left_width = workspace
13033                .dock_size(&left_dock, window, cx)
13034                .expect("left dock should still have an active panel");
13035
13036            let available_width = workspace.bounds.size.width - right_width;
13037            assert_eq!(
13038                left_width,
13039                available_width / 3.,
13040                "flexible left panel should keep matching one average center column"
13041            );
13042        });
13043
13044        // Step 5: Toggle the right dock's panel to flexible. Now both docks use
13045        // column-equivalent flex sizing and the workspace width is divided among
13046        // left-flex, two center columns, and right-flex.
13047        workspace.update_in(cx, |workspace, window, cx| {
13048            let right_dock = workspace.right_dock().clone();
13049            let right_panel = right_dock
13050                .read(cx)
13051                .visible_panel()
13052                .expect("right dock should have a visible panel")
13053                .clone();
13054            workspace.toggle_dock_panel_flexible_size(
13055                &right_dock,
13056                right_panel.as_ref(),
13057                window,
13058                cx,
13059            );
13060
13061            let right_dock = right_dock.read(cx);
13062            let right_panel = right_dock
13063                .visible_panel()
13064                .expect("right dock should still have a visible panel");
13065            assert!(
13066                right_panel.has_flexible_size(window, cx),
13067                "right panel should now be flexible"
13068            );
13069
13070            let right_size_state = right_dock
13071                .stored_panel_size_state(right_panel.as_ref())
13072                .expect("right panel should have a stored size state after toggling");
13073            let right_flex = right_size_state
13074                .flex
13075                .expect("right panel should have a flex value after toggling");
13076
13077            let left_dock = workspace.left_dock().read(cx);
13078            let left_width = workspace
13079                .dock_size(&left_dock, window, cx)
13080                .expect("left dock should still have an active panel");
13081            let right_width = workspace
13082                .dock_size(&right_dock, window, cx)
13083                .expect("right dock should still have an active panel");
13084
13085            let left_flex = workspace
13086                .default_dock_flex(DockPosition::Left)
13087                .expect("left dock should have a default flex");
13088            let center_column_count = workspace.center.full_height_column_count() as f32;
13089
13090            let total_flex = left_flex + center_column_count + right_flex;
13091            let expected_left = left_flex / total_flex * workspace.bounds.size.width;
13092            let expected_right = right_flex / total_flex * workspace.bounds.size.width;
13093            assert_eq!(
13094                left_width, expected_left,
13095                "flexible left panel should share workspace width via flex ratios"
13096            );
13097            assert_eq!(
13098                right_width, expected_right,
13099                "flexible right panel should share workspace width via flex ratios"
13100            );
13101        });
13102    }
13103
13104    struct TestModal(FocusHandle);
13105
13106    impl TestModal {
13107        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
13108            Self(cx.focus_handle())
13109        }
13110    }
13111
13112    impl EventEmitter<DismissEvent> for TestModal {}
13113
13114    impl Focusable for TestModal {
13115        fn focus_handle(&self, _cx: &App) -> FocusHandle {
13116            self.0.clone()
13117        }
13118    }
13119
13120    impl ModalView for TestModal {}
13121
13122    impl Render for TestModal {
13123        fn render(
13124            &mut self,
13125            _window: &mut Window,
13126            _cx: &mut Context<TestModal>,
13127        ) -> impl IntoElement {
13128            div().track_focus(&self.0)
13129        }
13130    }
13131
13132    #[gpui::test]
13133    async fn test_panels(cx: &mut gpui::TestAppContext) {
13134        init_test(cx);
13135        let fs = FakeFs::new(cx.executor());
13136
13137        let project = Project::test(fs, [], cx).await;
13138        let (multi_workspace, cx) =
13139            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13140        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13141
13142        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
13143            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
13144            workspace.add_panel(panel_1.clone(), window, cx);
13145            workspace.toggle_dock(DockPosition::Left, window, cx);
13146            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
13147            workspace.add_panel(panel_2.clone(), window, cx);
13148            workspace.toggle_dock(DockPosition::Right, window, cx);
13149
13150            let left_dock = workspace.left_dock();
13151            assert_eq!(
13152                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13153                panel_1.panel_id()
13154            );
13155            assert_eq!(
13156                workspace.dock_size(&left_dock.read(cx), window, cx),
13157                Some(px(300.))
13158            );
13159
13160            workspace.resize_left_dock(px(1337.), window, cx);
13161            assert_eq!(
13162                workspace
13163                    .right_dock()
13164                    .read(cx)
13165                    .visible_panel()
13166                    .unwrap()
13167                    .panel_id(),
13168                panel_2.panel_id(),
13169            );
13170
13171            (panel_1, panel_2)
13172        });
13173
13174        // Move panel_1 to the right
13175        panel_1.update_in(cx, |panel_1, window, cx| {
13176            panel_1.set_position(DockPosition::Right, window, cx)
13177        });
13178
13179        workspace.update_in(cx, |workspace, window, cx| {
13180            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
13181            // Since it was the only panel on the left, the left dock should now be closed.
13182            assert!(!workspace.left_dock().read(cx).is_open());
13183            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
13184            let right_dock = workspace.right_dock();
13185            assert_eq!(
13186                right_dock.read(cx).visible_panel().unwrap().panel_id(),
13187                panel_1.panel_id()
13188            );
13189            assert_eq!(
13190                right_dock
13191                    .read(cx)
13192                    .active_panel_size()
13193                    .unwrap()
13194                    .size
13195                    .unwrap(),
13196                px(1337.)
13197            );
13198
13199            // Now we move panel_2 to the left
13200            panel_2.set_position(DockPosition::Left, window, cx);
13201        });
13202
13203        workspace.update(cx, |workspace, cx| {
13204            // Since panel_2 was not visible on the right, we don't open the left dock.
13205            assert!(!workspace.left_dock().read(cx).is_open());
13206            // And the right dock is unaffected in its displaying of panel_1
13207            assert!(workspace.right_dock().read(cx).is_open());
13208            assert_eq!(
13209                workspace
13210                    .right_dock()
13211                    .read(cx)
13212                    .visible_panel()
13213                    .unwrap()
13214                    .panel_id(),
13215                panel_1.panel_id(),
13216            );
13217        });
13218
13219        // Move panel_1 back to the left
13220        panel_1.update_in(cx, |panel_1, window, cx| {
13221            panel_1.set_position(DockPosition::Left, window, cx)
13222        });
13223
13224        workspace.update_in(cx, |workspace, window, cx| {
13225            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
13226            let left_dock = workspace.left_dock();
13227            assert!(left_dock.read(cx).is_open());
13228            assert_eq!(
13229                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13230                panel_1.panel_id()
13231            );
13232            assert_eq!(
13233                workspace.dock_size(&left_dock.read(cx), window, cx),
13234                Some(px(1337.))
13235            );
13236            // And the right dock should be closed as it no longer has any panels.
13237            assert!(!workspace.right_dock().read(cx).is_open());
13238
13239            // Now we move panel_1 to the bottom
13240            panel_1.set_position(DockPosition::Bottom, window, cx);
13241        });
13242
13243        workspace.update_in(cx, |workspace, window, cx| {
13244            // Since panel_1 was visible on the left, we close the left dock.
13245            assert!(!workspace.left_dock().read(cx).is_open());
13246            // The bottom dock is sized based on the panel's default size,
13247            // since the panel orientation changed from vertical to horizontal.
13248            let bottom_dock = workspace.bottom_dock();
13249            assert_eq!(
13250                workspace.dock_size(&bottom_dock.read(cx), window, cx),
13251                Some(px(300.))
13252            );
13253            // Close bottom dock and move panel_1 back to the left.
13254            bottom_dock.update(cx, |bottom_dock, cx| {
13255                bottom_dock.set_open(false, window, cx)
13256            });
13257            panel_1.set_position(DockPosition::Left, window, cx);
13258        });
13259
13260        // Emit activated event on panel 1
13261        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
13262
13263        // Now the left dock is open and panel_1 is active and focused.
13264        workspace.update_in(cx, |workspace, window, cx| {
13265            let left_dock = workspace.left_dock();
13266            assert!(left_dock.read(cx).is_open());
13267            assert_eq!(
13268                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13269                panel_1.panel_id(),
13270            );
13271            assert!(panel_1.focus_handle(cx).is_focused(window));
13272        });
13273
13274        // Emit closed event on panel 2, which is not active
13275        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13276
13277        // Wo don't close the left dock, because panel_2 wasn't the active panel
13278        workspace.update(cx, |workspace, cx| {
13279            let left_dock = workspace.left_dock();
13280            assert!(left_dock.read(cx).is_open());
13281            assert_eq!(
13282                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13283                panel_1.panel_id(),
13284            );
13285        });
13286
13287        // Emitting a ZoomIn event shows the panel as zoomed.
13288        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
13289        workspace.read_with(cx, |workspace, _| {
13290            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13291            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
13292        });
13293
13294        // Move panel to another dock while it is zoomed
13295        panel_1.update_in(cx, |panel, window, cx| {
13296            panel.set_position(DockPosition::Right, window, cx)
13297        });
13298        workspace.read_with(cx, |workspace, _| {
13299            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13300
13301            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13302        });
13303
13304        // This is a helper for getting a:
13305        // - valid focus on an element,
13306        // - that isn't a part of the panes and panels system of the Workspace,
13307        // - and doesn't trigger the 'on_focus_lost' API.
13308        let focus_other_view = {
13309            let workspace = workspace.clone();
13310            move |cx: &mut VisualTestContext| {
13311                workspace.update_in(cx, |workspace, window, cx| {
13312                    if workspace.active_modal::<TestModal>(cx).is_some() {
13313                        workspace.toggle_modal(window, cx, TestModal::new);
13314                        workspace.toggle_modal(window, cx, TestModal::new);
13315                    } else {
13316                        workspace.toggle_modal(window, cx, TestModal::new);
13317                    }
13318                })
13319            }
13320        };
13321
13322        // If focus is transferred to another view that's not a panel or another pane, we still show
13323        // the panel as zoomed.
13324        focus_other_view(cx);
13325        workspace.read_with(cx, |workspace, _| {
13326            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13327            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13328        });
13329
13330        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
13331        workspace.update_in(cx, |_workspace, window, cx| {
13332            cx.focus_self(window);
13333        });
13334        workspace.read_with(cx, |workspace, _| {
13335            assert_eq!(workspace.zoomed, None);
13336            assert_eq!(workspace.zoomed_position, None);
13337        });
13338
13339        // If focus is transferred again to another view that's not a panel or a pane, we won't
13340        // show the panel as zoomed because it wasn't zoomed before.
13341        focus_other_view(cx);
13342        workspace.read_with(cx, |workspace, _| {
13343            assert_eq!(workspace.zoomed, None);
13344            assert_eq!(workspace.zoomed_position, None);
13345        });
13346
13347        // When the panel is activated, it is zoomed again.
13348        cx.dispatch_action(ToggleRightDock);
13349        workspace.read_with(cx, |workspace, _| {
13350            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13351            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13352        });
13353
13354        // Emitting a ZoomOut event unzooms the panel.
13355        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
13356        workspace.read_with(cx, |workspace, _| {
13357            assert_eq!(workspace.zoomed, None);
13358            assert_eq!(workspace.zoomed_position, None);
13359        });
13360
13361        // Emit closed event on panel 1, which is active
13362        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13363
13364        // Now the left dock is closed, because panel_1 was the active panel
13365        workspace.update(cx, |workspace, cx| {
13366            let right_dock = workspace.right_dock();
13367            assert!(!right_dock.read(cx).is_open());
13368        });
13369    }
13370
13371    #[gpui::test]
13372    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
13373        init_test(cx);
13374
13375        let fs = FakeFs::new(cx.background_executor.clone());
13376        let project = Project::test(fs, [], cx).await;
13377        let (workspace, cx) =
13378            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13379        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13380
13381        let dirty_regular_buffer = cx.new(|cx| {
13382            TestItem::new(cx)
13383                .with_dirty(true)
13384                .with_label("1.txt")
13385                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13386        });
13387        let dirty_regular_buffer_2 = cx.new(|cx| {
13388            TestItem::new(cx)
13389                .with_dirty(true)
13390                .with_label("2.txt")
13391                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13392        });
13393        let dirty_multi_buffer_with_both = cx.new(|cx| {
13394            TestItem::new(cx)
13395                .with_dirty(true)
13396                .with_buffer_kind(ItemBufferKind::Multibuffer)
13397                .with_label("Fake Project Search")
13398                .with_project_items(&[
13399                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13400                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13401                ])
13402        });
13403        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13404        workspace.update_in(cx, |workspace, window, cx| {
13405            workspace.add_item(
13406                pane.clone(),
13407                Box::new(dirty_regular_buffer.clone()),
13408                None,
13409                false,
13410                false,
13411                window,
13412                cx,
13413            );
13414            workspace.add_item(
13415                pane.clone(),
13416                Box::new(dirty_regular_buffer_2.clone()),
13417                None,
13418                false,
13419                false,
13420                window,
13421                cx,
13422            );
13423            workspace.add_item(
13424                pane.clone(),
13425                Box::new(dirty_multi_buffer_with_both.clone()),
13426                None,
13427                false,
13428                false,
13429                window,
13430                cx,
13431            );
13432        });
13433
13434        pane.update_in(cx, |pane, window, cx| {
13435            pane.activate_item(2, true, true, window, cx);
13436            assert_eq!(
13437                pane.active_item().unwrap().item_id(),
13438                multi_buffer_with_both_files_id,
13439                "Should select the multi buffer in the pane"
13440            );
13441        });
13442        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13443            pane.close_other_items(
13444                &CloseOtherItems {
13445                    save_intent: Some(SaveIntent::Save),
13446                    close_pinned: true,
13447                },
13448                None,
13449                window,
13450                cx,
13451            )
13452        });
13453        cx.background_executor.run_until_parked();
13454        assert!(!cx.has_pending_prompt());
13455        close_all_but_multi_buffer_task
13456            .await
13457            .expect("Closing all buffers but the multi buffer failed");
13458        pane.update(cx, |pane, cx| {
13459            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
13460            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
13461            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
13462            assert_eq!(pane.items_len(), 1);
13463            assert_eq!(
13464                pane.active_item().unwrap().item_id(),
13465                multi_buffer_with_both_files_id,
13466                "Should have only the multi buffer left in the pane"
13467            );
13468            assert!(
13469                dirty_multi_buffer_with_both.read(cx).is_dirty,
13470                "The multi buffer containing the unsaved buffer should still be dirty"
13471            );
13472        });
13473
13474        dirty_regular_buffer.update(cx, |buffer, cx| {
13475            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
13476        });
13477
13478        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13479            pane.close_active_item(
13480                &CloseActiveItem {
13481                    save_intent: Some(SaveIntent::Close),
13482                    close_pinned: false,
13483                },
13484                window,
13485                cx,
13486            )
13487        });
13488        cx.background_executor.run_until_parked();
13489        assert!(
13490            cx.has_pending_prompt(),
13491            "Dirty multi buffer should prompt a save dialog"
13492        );
13493        cx.simulate_prompt_answer("Save");
13494        cx.background_executor.run_until_parked();
13495        close_multi_buffer_task
13496            .await
13497            .expect("Closing the multi buffer failed");
13498        pane.update(cx, |pane, cx| {
13499            assert_eq!(
13500                dirty_multi_buffer_with_both.read(cx).save_count,
13501                1,
13502                "Multi buffer item should get be saved"
13503            );
13504            // Test impl does not save inner items, so we do not assert them
13505            assert_eq!(
13506                pane.items_len(),
13507                0,
13508                "No more items should be left in the pane"
13509            );
13510            assert!(pane.active_item().is_none());
13511        });
13512    }
13513
13514    #[gpui::test]
13515    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
13516        cx: &mut TestAppContext,
13517    ) {
13518        init_test(cx);
13519
13520        let fs = FakeFs::new(cx.background_executor.clone());
13521        let project = Project::test(fs, [], cx).await;
13522        let (workspace, cx) =
13523            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13524        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13525
13526        let dirty_regular_buffer = cx.new(|cx| {
13527            TestItem::new(cx)
13528                .with_dirty(true)
13529                .with_label("1.txt")
13530                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13531        });
13532        let dirty_regular_buffer_2 = cx.new(|cx| {
13533            TestItem::new(cx)
13534                .with_dirty(true)
13535                .with_label("2.txt")
13536                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13537        });
13538        let clear_regular_buffer = cx.new(|cx| {
13539            TestItem::new(cx)
13540                .with_label("3.txt")
13541                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13542        });
13543
13544        let dirty_multi_buffer_with_both = cx.new(|cx| {
13545            TestItem::new(cx)
13546                .with_dirty(true)
13547                .with_buffer_kind(ItemBufferKind::Multibuffer)
13548                .with_label("Fake Project Search")
13549                .with_project_items(&[
13550                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13551                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13552                    clear_regular_buffer.read(cx).project_items[0].clone(),
13553                ])
13554        });
13555        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13556        workspace.update_in(cx, |workspace, window, cx| {
13557            workspace.add_item(
13558                pane.clone(),
13559                Box::new(dirty_regular_buffer.clone()),
13560                None,
13561                false,
13562                false,
13563                window,
13564                cx,
13565            );
13566            workspace.add_item(
13567                pane.clone(),
13568                Box::new(dirty_multi_buffer_with_both.clone()),
13569                None,
13570                false,
13571                false,
13572                window,
13573                cx,
13574            );
13575        });
13576
13577        pane.update_in(cx, |pane, window, cx| {
13578            pane.activate_item(1, true, true, window, cx);
13579            assert_eq!(
13580                pane.active_item().unwrap().item_id(),
13581                multi_buffer_with_both_files_id,
13582                "Should select the multi buffer in the pane"
13583            );
13584        });
13585        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13586            pane.close_active_item(
13587                &CloseActiveItem {
13588                    save_intent: None,
13589                    close_pinned: false,
13590                },
13591                window,
13592                cx,
13593            )
13594        });
13595        cx.background_executor.run_until_parked();
13596        assert!(
13597            cx.has_pending_prompt(),
13598            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13599        );
13600    }
13601
13602    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13603    /// closed when they are deleted from disk.
13604    #[gpui::test]
13605    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13606        init_test(cx);
13607
13608        // Enable the close_on_disk_deletion setting
13609        cx.update_global(|store: &mut SettingsStore, cx| {
13610            store.update_user_settings(cx, |settings| {
13611                settings.workspace.close_on_file_delete = Some(true);
13612            });
13613        });
13614
13615        let fs = FakeFs::new(cx.background_executor.clone());
13616        let project = Project::test(fs, [], cx).await;
13617        let (workspace, cx) =
13618            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13619        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13620
13621        // Create a test item that simulates a file
13622        let item = cx.new(|cx| {
13623            TestItem::new(cx)
13624                .with_label("test.txt")
13625                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13626        });
13627
13628        // Add item to workspace
13629        workspace.update_in(cx, |workspace, window, cx| {
13630            workspace.add_item(
13631                pane.clone(),
13632                Box::new(item.clone()),
13633                None,
13634                false,
13635                false,
13636                window,
13637                cx,
13638            );
13639        });
13640
13641        // Verify the item is in the pane
13642        pane.read_with(cx, |pane, _| {
13643            assert_eq!(pane.items().count(), 1);
13644        });
13645
13646        // Simulate file deletion by setting the item's deleted state
13647        item.update(cx, |item, _| {
13648            item.set_has_deleted_file(true);
13649        });
13650
13651        // Emit UpdateTab event to trigger the close behavior
13652        cx.run_until_parked();
13653        item.update(cx, |_, cx| {
13654            cx.emit(ItemEvent::UpdateTab);
13655        });
13656
13657        // Allow the close operation to complete
13658        cx.run_until_parked();
13659
13660        // Verify the item was automatically closed
13661        pane.read_with(cx, |pane, _| {
13662            assert_eq!(
13663                pane.items().count(),
13664                0,
13665                "Item should be automatically closed when file is deleted"
13666            );
13667        });
13668    }
13669
13670    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13671    /// open with a strikethrough when they are deleted from disk.
13672    #[gpui::test]
13673    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13674        init_test(cx);
13675
13676        // Ensure close_on_disk_deletion is disabled (default)
13677        cx.update_global(|store: &mut SettingsStore, cx| {
13678            store.update_user_settings(cx, |settings| {
13679                settings.workspace.close_on_file_delete = Some(false);
13680            });
13681        });
13682
13683        let fs = FakeFs::new(cx.background_executor.clone());
13684        let project = Project::test(fs, [], cx).await;
13685        let (workspace, cx) =
13686            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13687        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13688
13689        // Create a test item that simulates a file
13690        let item = cx.new(|cx| {
13691            TestItem::new(cx)
13692                .with_label("test.txt")
13693                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13694        });
13695
13696        // Add item to workspace
13697        workspace.update_in(cx, |workspace, window, cx| {
13698            workspace.add_item(
13699                pane.clone(),
13700                Box::new(item.clone()),
13701                None,
13702                false,
13703                false,
13704                window,
13705                cx,
13706            );
13707        });
13708
13709        // Verify the item is in the pane
13710        pane.read_with(cx, |pane, _| {
13711            assert_eq!(pane.items().count(), 1);
13712        });
13713
13714        // Simulate file deletion
13715        item.update(cx, |item, _| {
13716            item.set_has_deleted_file(true);
13717        });
13718
13719        // Emit UpdateTab event
13720        cx.run_until_parked();
13721        item.update(cx, |_, cx| {
13722            cx.emit(ItemEvent::UpdateTab);
13723        });
13724
13725        // Allow any potential close operation to complete
13726        cx.run_until_parked();
13727
13728        // Verify the item remains open (with strikethrough)
13729        pane.read_with(cx, |pane, _| {
13730            assert_eq!(
13731                pane.items().count(),
13732                1,
13733                "Item should remain open when close_on_disk_deletion is disabled"
13734            );
13735        });
13736
13737        // Verify the item shows as deleted
13738        item.read_with(cx, |item, _| {
13739            assert!(
13740                item.has_deleted_file,
13741                "Item should be marked as having deleted file"
13742            );
13743        });
13744    }
13745
13746    /// Tests that dirty files are not automatically closed when deleted from disk,
13747    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13748    /// unsaved changes without being prompted.
13749    #[gpui::test]
13750    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13751        init_test(cx);
13752
13753        // Enable the close_on_file_delete setting
13754        cx.update_global(|store: &mut SettingsStore, cx| {
13755            store.update_user_settings(cx, |settings| {
13756                settings.workspace.close_on_file_delete = Some(true);
13757            });
13758        });
13759
13760        let fs = FakeFs::new(cx.background_executor.clone());
13761        let project = Project::test(fs, [], cx).await;
13762        let (workspace, cx) =
13763            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13764        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13765
13766        // Create a dirty test item
13767        let item = cx.new(|cx| {
13768            TestItem::new(cx)
13769                .with_dirty(true)
13770                .with_label("test.txt")
13771                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13772        });
13773
13774        // Add item to workspace
13775        workspace.update_in(cx, |workspace, window, cx| {
13776            workspace.add_item(
13777                pane.clone(),
13778                Box::new(item.clone()),
13779                None,
13780                false,
13781                false,
13782                window,
13783                cx,
13784            );
13785        });
13786
13787        // Simulate file deletion
13788        item.update(cx, |item, _| {
13789            item.set_has_deleted_file(true);
13790        });
13791
13792        // Emit UpdateTab event to trigger the close behavior
13793        cx.run_until_parked();
13794        item.update(cx, |_, cx| {
13795            cx.emit(ItemEvent::UpdateTab);
13796        });
13797
13798        // Allow any potential close operation to complete
13799        cx.run_until_parked();
13800
13801        // Verify the item remains open (dirty files are not auto-closed)
13802        pane.read_with(cx, |pane, _| {
13803            assert_eq!(
13804                pane.items().count(),
13805                1,
13806                "Dirty items should not be automatically closed even when file is deleted"
13807            );
13808        });
13809
13810        // Verify the item is marked as deleted and still dirty
13811        item.read_with(cx, |item, _| {
13812            assert!(
13813                item.has_deleted_file,
13814                "Item should be marked as having deleted file"
13815            );
13816            assert!(item.is_dirty, "Item should still be dirty");
13817        });
13818    }
13819
13820    /// Tests that navigation history is cleaned up when files are auto-closed
13821    /// due to deletion from disk.
13822    #[gpui::test]
13823    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13824        init_test(cx);
13825
13826        // Enable the close_on_file_delete setting
13827        cx.update_global(|store: &mut SettingsStore, cx| {
13828            store.update_user_settings(cx, |settings| {
13829                settings.workspace.close_on_file_delete = Some(true);
13830            });
13831        });
13832
13833        let fs = FakeFs::new(cx.background_executor.clone());
13834        let project = Project::test(fs, [], cx).await;
13835        let (workspace, cx) =
13836            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13837        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13838
13839        // Create test items
13840        let item1 = cx.new(|cx| {
13841            TestItem::new(cx)
13842                .with_label("test1.txt")
13843                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13844        });
13845        let item1_id = item1.item_id();
13846
13847        let item2 = cx.new(|cx| {
13848            TestItem::new(cx)
13849                .with_label("test2.txt")
13850                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13851        });
13852
13853        // Add items to workspace
13854        workspace.update_in(cx, |workspace, window, cx| {
13855            workspace.add_item(
13856                pane.clone(),
13857                Box::new(item1.clone()),
13858                None,
13859                false,
13860                false,
13861                window,
13862                cx,
13863            );
13864            workspace.add_item(
13865                pane.clone(),
13866                Box::new(item2.clone()),
13867                None,
13868                false,
13869                false,
13870                window,
13871                cx,
13872            );
13873        });
13874
13875        // Activate item1 to ensure it gets navigation entries
13876        pane.update_in(cx, |pane, window, cx| {
13877            pane.activate_item(0, true, true, window, cx);
13878        });
13879
13880        // Switch to item2 and back to create navigation history
13881        pane.update_in(cx, |pane, window, cx| {
13882            pane.activate_item(1, true, true, window, cx);
13883        });
13884        cx.run_until_parked();
13885
13886        pane.update_in(cx, |pane, window, cx| {
13887            pane.activate_item(0, true, true, window, cx);
13888        });
13889        cx.run_until_parked();
13890
13891        // Simulate file deletion for item1
13892        item1.update(cx, |item, _| {
13893            item.set_has_deleted_file(true);
13894        });
13895
13896        // Emit UpdateTab event to trigger the close behavior
13897        item1.update(cx, |_, cx| {
13898            cx.emit(ItemEvent::UpdateTab);
13899        });
13900        cx.run_until_parked();
13901
13902        // Verify item1 was closed
13903        pane.read_with(cx, |pane, _| {
13904            assert_eq!(
13905                pane.items().count(),
13906                1,
13907                "Should have 1 item remaining after auto-close"
13908            );
13909        });
13910
13911        // Check navigation history after close
13912        let has_item = pane.read_with(cx, |pane, cx| {
13913            let mut has_item = false;
13914            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13915                if entry.item.id() == item1_id {
13916                    has_item = true;
13917                }
13918            });
13919            has_item
13920        });
13921
13922        assert!(
13923            !has_item,
13924            "Navigation history should not contain closed item entries"
13925        );
13926    }
13927
13928    #[gpui::test]
13929    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13930        cx: &mut TestAppContext,
13931    ) {
13932        init_test(cx);
13933
13934        let fs = FakeFs::new(cx.background_executor.clone());
13935        let project = Project::test(fs, [], cx).await;
13936        let (workspace, cx) =
13937            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13938        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13939
13940        let dirty_regular_buffer = cx.new(|cx| {
13941            TestItem::new(cx)
13942                .with_dirty(true)
13943                .with_label("1.txt")
13944                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13945        });
13946        let dirty_regular_buffer_2 = cx.new(|cx| {
13947            TestItem::new(cx)
13948                .with_dirty(true)
13949                .with_label("2.txt")
13950                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13951        });
13952        let clear_regular_buffer = cx.new(|cx| {
13953            TestItem::new(cx)
13954                .with_label("3.txt")
13955                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13956        });
13957
13958        let dirty_multi_buffer = cx.new(|cx| {
13959            TestItem::new(cx)
13960                .with_dirty(true)
13961                .with_buffer_kind(ItemBufferKind::Multibuffer)
13962                .with_label("Fake Project Search")
13963                .with_project_items(&[
13964                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13965                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13966                    clear_regular_buffer.read(cx).project_items[0].clone(),
13967                ])
13968        });
13969        workspace.update_in(cx, |workspace, window, cx| {
13970            workspace.add_item(
13971                pane.clone(),
13972                Box::new(dirty_regular_buffer.clone()),
13973                None,
13974                false,
13975                false,
13976                window,
13977                cx,
13978            );
13979            workspace.add_item(
13980                pane.clone(),
13981                Box::new(dirty_regular_buffer_2.clone()),
13982                None,
13983                false,
13984                false,
13985                window,
13986                cx,
13987            );
13988            workspace.add_item(
13989                pane.clone(),
13990                Box::new(dirty_multi_buffer.clone()),
13991                None,
13992                false,
13993                false,
13994                window,
13995                cx,
13996            );
13997        });
13998
13999        pane.update_in(cx, |pane, window, cx| {
14000            pane.activate_item(2, true, true, window, cx);
14001            assert_eq!(
14002                pane.active_item().unwrap().item_id(),
14003                dirty_multi_buffer.item_id(),
14004                "Should select the multi buffer in the pane"
14005            );
14006        });
14007        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
14008            pane.close_active_item(
14009                &CloseActiveItem {
14010                    save_intent: None,
14011                    close_pinned: false,
14012                },
14013                window,
14014                cx,
14015            )
14016        });
14017        cx.background_executor.run_until_parked();
14018        assert!(
14019            !cx.has_pending_prompt(),
14020            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
14021        );
14022        close_multi_buffer_task
14023            .await
14024            .expect("Closing multi buffer failed");
14025        pane.update(cx, |pane, cx| {
14026            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
14027            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
14028            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
14029            assert_eq!(
14030                pane.items()
14031                    .map(|item| item.item_id())
14032                    .sorted()
14033                    .collect::<Vec<_>>(),
14034                vec![
14035                    dirty_regular_buffer.item_id(),
14036                    dirty_regular_buffer_2.item_id(),
14037                ],
14038                "Should have no multi buffer left in the pane"
14039            );
14040            assert!(dirty_regular_buffer.read(cx).is_dirty);
14041            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
14042        });
14043    }
14044
14045    #[gpui::test]
14046    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
14047        init_test(cx);
14048        let fs = FakeFs::new(cx.executor());
14049        let project = Project::test(fs, [], cx).await;
14050        let (multi_workspace, cx) =
14051            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14052        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14053
14054        // Add a new panel to the right dock, opening the dock and setting the
14055        // focus to the new panel.
14056        let panel = workspace.update_in(cx, |workspace, window, cx| {
14057            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14058            workspace.add_panel(panel.clone(), window, cx);
14059
14060            workspace
14061                .right_dock()
14062                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14063
14064            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14065
14066            panel
14067        });
14068
14069        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
14070        // panel to the next valid position which, in this case, is the left
14071        // dock.
14072        cx.dispatch_action(MoveFocusedPanelToNextPosition);
14073        workspace.update(cx, |workspace, cx| {
14074            assert!(workspace.left_dock().read(cx).is_open());
14075            assert_eq!(panel.read(cx).position, DockPosition::Left);
14076        });
14077
14078        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
14079        // panel to the next valid position which, in this case, is the bottom
14080        // dock.
14081        cx.dispatch_action(MoveFocusedPanelToNextPosition);
14082        workspace.update(cx, |workspace, cx| {
14083            assert!(workspace.bottom_dock().read(cx).is_open());
14084            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
14085        });
14086
14087        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
14088        // around moving the panel to its initial position, the right dock.
14089        cx.dispatch_action(MoveFocusedPanelToNextPosition);
14090        workspace.update(cx, |workspace, cx| {
14091            assert!(workspace.right_dock().read(cx).is_open());
14092            assert_eq!(panel.read(cx).position, DockPosition::Right);
14093        });
14094
14095        // Remove focus from the panel, ensuring that, if the panel is not
14096        // focused, the `MoveFocusedPanelToNextPosition` action does not update
14097        // the panel's position, so the panel is still in the right dock.
14098        workspace.update_in(cx, |workspace, window, cx| {
14099            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14100        });
14101
14102        cx.dispatch_action(MoveFocusedPanelToNextPosition);
14103        workspace.update(cx, |workspace, cx| {
14104            assert!(workspace.right_dock().read(cx).is_open());
14105            assert_eq!(panel.read(cx).position, DockPosition::Right);
14106        });
14107    }
14108
14109    #[gpui::test]
14110    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
14111        init_test(cx);
14112
14113        let fs = FakeFs::new(cx.executor());
14114        let project = Project::test(fs, [], cx).await;
14115        let (workspace, cx) =
14116            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14117
14118        let item_1 = cx.new(|cx| {
14119            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
14120        });
14121        workspace.update_in(cx, |workspace, window, cx| {
14122            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
14123            workspace.move_item_to_pane_in_direction(
14124                &MoveItemToPaneInDirection {
14125                    direction: SplitDirection::Right,
14126                    focus: true,
14127                    clone: false,
14128                },
14129                window,
14130                cx,
14131            );
14132            workspace.move_item_to_pane_at_index(
14133                &MoveItemToPane {
14134                    destination: 3,
14135                    focus: true,
14136                    clone: false,
14137                },
14138                window,
14139                cx,
14140            );
14141
14142            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
14143            assert_eq!(
14144                pane_items_paths(&workspace.active_pane, cx),
14145                vec!["first.txt".to_string()],
14146                "Single item was not moved anywhere"
14147            );
14148        });
14149
14150        let item_2 = cx.new(|cx| {
14151            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
14152        });
14153        workspace.update_in(cx, |workspace, window, cx| {
14154            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
14155            assert_eq!(
14156                pane_items_paths(&workspace.panes[0], cx),
14157                vec!["first.txt".to_string(), "second.txt".to_string()],
14158            );
14159            workspace.move_item_to_pane_in_direction(
14160                &MoveItemToPaneInDirection {
14161                    direction: SplitDirection::Right,
14162                    focus: true,
14163                    clone: false,
14164                },
14165                window,
14166                cx,
14167            );
14168
14169            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
14170            assert_eq!(
14171                pane_items_paths(&workspace.panes[0], cx),
14172                vec!["first.txt".to_string()],
14173                "After moving, one item should be left in the original pane"
14174            );
14175            assert_eq!(
14176                pane_items_paths(&workspace.panes[1], cx),
14177                vec!["second.txt".to_string()],
14178                "New item should have been moved to the new pane"
14179            );
14180        });
14181
14182        let item_3 = cx.new(|cx| {
14183            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
14184        });
14185        workspace.update_in(cx, |workspace, window, cx| {
14186            let original_pane = workspace.panes[0].clone();
14187            workspace.set_active_pane(&original_pane, window, cx);
14188            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
14189            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
14190            assert_eq!(
14191                pane_items_paths(&workspace.active_pane, cx),
14192                vec!["first.txt".to_string(), "third.txt".to_string()],
14193                "New pane should be ready to move one item out"
14194            );
14195
14196            workspace.move_item_to_pane_at_index(
14197                &MoveItemToPane {
14198                    destination: 3,
14199                    focus: true,
14200                    clone: false,
14201                },
14202                window,
14203                cx,
14204            );
14205            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
14206            assert_eq!(
14207                pane_items_paths(&workspace.active_pane, cx),
14208                vec!["first.txt".to_string()],
14209                "After moving, one item should be left in the original pane"
14210            );
14211            assert_eq!(
14212                pane_items_paths(&workspace.panes[1], cx),
14213                vec!["second.txt".to_string()],
14214                "Previously created pane should be unchanged"
14215            );
14216            assert_eq!(
14217                pane_items_paths(&workspace.panes[2], cx),
14218                vec!["third.txt".to_string()],
14219                "New item should have been moved to the new pane"
14220            );
14221        });
14222    }
14223
14224    #[gpui::test]
14225    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
14226        init_test(cx);
14227
14228        let fs = FakeFs::new(cx.executor());
14229        let project = Project::test(fs, [], cx).await;
14230        let (workspace, cx) =
14231            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14232
14233        let item_1 = cx.new(|cx| {
14234            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
14235        });
14236        workspace.update_in(cx, |workspace, window, cx| {
14237            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
14238            workspace.move_item_to_pane_in_direction(
14239                &MoveItemToPaneInDirection {
14240                    direction: SplitDirection::Right,
14241                    focus: true,
14242                    clone: true,
14243                },
14244                window,
14245                cx,
14246            );
14247        });
14248        cx.run_until_parked();
14249        workspace.update_in(cx, |workspace, window, cx| {
14250            workspace.move_item_to_pane_at_index(
14251                &MoveItemToPane {
14252                    destination: 3,
14253                    focus: true,
14254                    clone: true,
14255                },
14256                window,
14257                cx,
14258            );
14259        });
14260        cx.run_until_parked();
14261
14262        workspace.update(cx, |workspace, cx| {
14263            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
14264            for pane in workspace.panes() {
14265                assert_eq!(
14266                    pane_items_paths(pane, cx),
14267                    vec!["first.txt".to_string()],
14268                    "Single item exists in all panes"
14269                );
14270            }
14271        });
14272
14273        // verify that the active pane has been updated after waiting for the
14274        // pane focus event to fire and resolve
14275        workspace.read_with(cx, |workspace, _app| {
14276            assert_eq!(
14277                workspace.active_pane(),
14278                &workspace.panes[2],
14279                "The third pane should be the active one: {:?}",
14280                workspace.panes
14281            );
14282        })
14283    }
14284
14285    #[gpui::test]
14286    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
14287        init_test(cx);
14288
14289        let fs = FakeFs::new(cx.executor());
14290        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
14291
14292        let project = Project::test(fs, ["root".as_ref()], cx).await;
14293        let (workspace, cx) =
14294            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14295
14296        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14297        // Add item to pane A with project path
14298        let item_a = cx.new(|cx| {
14299            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14300        });
14301        workspace.update_in(cx, |workspace, window, cx| {
14302            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
14303        });
14304
14305        // Split to create pane B
14306        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
14307            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
14308        });
14309
14310        // Add item with SAME project path to pane B, and pin it
14311        let item_b = cx.new(|cx| {
14312            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14313        });
14314        pane_b.update_in(cx, |pane, window, cx| {
14315            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14316            pane.set_pinned_count(1);
14317        });
14318
14319        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
14320        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
14321
14322        // close_pinned: false should only close the unpinned copy
14323        workspace.update_in(cx, |workspace, window, cx| {
14324            workspace.close_item_in_all_panes(
14325                &CloseItemInAllPanes {
14326                    save_intent: Some(SaveIntent::Close),
14327                    close_pinned: false,
14328                },
14329                window,
14330                cx,
14331            )
14332        });
14333        cx.executor().run_until_parked();
14334
14335        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
14336        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14337        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
14338        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
14339
14340        // Split again, seeing as closing the previous item also closed its
14341        // pane, so only pane remains, which does not allow us to properly test
14342        // that both items close when `close_pinned: true`.
14343        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
14344            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
14345        });
14346
14347        // Add an item with the same project path to pane C so that
14348        // close_item_in_all_panes can determine what to close across all panes
14349        // (it reads the active item from the active pane, and split_pane
14350        // creates an empty pane).
14351        let item_c = cx.new(|cx| {
14352            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14353        });
14354        pane_c.update_in(cx, |pane, window, cx| {
14355            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
14356        });
14357
14358        // close_pinned: true should close the pinned copy too
14359        workspace.update_in(cx, |workspace, window, cx| {
14360            let panes_count = workspace.panes().len();
14361            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
14362
14363            workspace.close_item_in_all_panes(
14364                &CloseItemInAllPanes {
14365                    save_intent: Some(SaveIntent::Close),
14366                    close_pinned: true,
14367                },
14368                window,
14369                cx,
14370            )
14371        });
14372        cx.executor().run_until_parked();
14373
14374        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14375        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
14376        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
14377        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
14378    }
14379
14380    mod register_project_item_tests {
14381
14382        use super::*;
14383
14384        // View
14385        struct TestPngItemView {
14386            focus_handle: FocusHandle,
14387        }
14388        // Model
14389        struct TestPngItem {}
14390
14391        impl project::ProjectItem for TestPngItem {
14392            fn try_open(
14393                _project: &Entity<Project>,
14394                path: &ProjectPath,
14395                cx: &mut App,
14396            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14397                if path.path.extension().unwrap() == "png" {
14398                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
14399                } else {
14400                    None
14401                }
14402            }
14403
14404            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14405                None
14406            }
14407
14408            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14409                None
14410            }
14411
14412            fn is_dirty(&self) -> bool {
14413                false
14414            }
14415        }
14416
14417        impl Item for TestPngItemView {
14418            type Event = ();
14419            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14420                "".into()
14421            }
14422        }
14423        impl EventEmitter<()> for TestPngItemView {}
14424        impl Focusable for TestPngItemView {
14425            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14426                self.focus_handle.clone()
14427            }
14428        }
14429
14430        impl Render for TestPngItemView {
14431            fn render(
14432                &mut self,
14433                _window: &mut Window,
14434                _cx: &mut Context<Self>,
14435            ) -> impl IntoElement {
14436                Empty
14437            }
14438        }
14439
14440        impl ProjectItem for TestPngItemView {
14441            type Item = TestPngItem;
14442
14443            fn for_project_item(
14444                _project: Entity<Project>,
14445                _pane: Option<&Pane>,
14446                _item: Entity<Self::Item>,
14447                _: &mut Window,
14448                cx: &mut Context<Self>,
14449            ) -> Self
14450            where
14451                Self: Sized,
14452            {
14453                Self {
14454                    focus_handle: cx.focus_handle(),
14455                }
14456            }
14457        }
14458
14459        // View
14460        struct TestIpynbItemView {
14461            focus_handle: FocusHandle,
14462        }
14463        // Model
14464        struct TestIpynbItem {}
14465
14466        impl project::ProjectItem for TestIpynbItem {
14467            fn try_open(
14468                _project: &Entity<Project>,
14469                path: &ProjectPath,
14470                cx: &mut App,
14471            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14472                if path.path.extension().unwrap() == "ipynb" {
14473                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
14474                } else {
14475                    None
14476                }
14477            }
14478
14479            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14480                None
14481            }
14482
14483            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14484                None
14485            }
14486
14487            fn is_dirty(&self) -> bool {
14488                false
14489            }
14490        }
14491
14492        impl Item for TestIpynbItemView {
14493            type Event = ();
14494            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14495                "".into()
14496            }
14497        }
14498        impl EventEmitter<()> for TestIpynbItemView {}
14499        impl Focusable for TestIpynbItemView {
14500            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14501                self.focus_handle.clone()
14502            }
14503        }
14504
14505        impl Render for TestIpynbItemView {
14506            fn render(
14507                &mut self,
14508                _window: &mut Window,
14509                _cx: &mut Context<Self>,
14510            ) -> impl IntoElement {
14511                Empty
14512            }
14513        }
14514
14515        impl ProjectItem for TestIpynbItemView {
14516            type Item = TestIpynbItem;
14517
14518            fn for_project_item(
14519                _project: Entity<Project>,
14520                _pane: Option<&Pane>,
14521                _item: Entity<Self::Item>,
14522                _: &mut Window,
14523                cx: &mut Context<Self>,
14524            ) -> Self
14525            where
14526                Self: Sized,
14527            {
14528                Self {
14529                    focus_handle: cx.focus_handle(),
14530                }
14531            }
14532        }
14533
14534        struct TestAlternatePngItemView {
14535            focus_handle: FocusHandle,
14536        }
14537
14538        impl Item for TestAlternatePngItemView {
14539            type Event = ();
14540            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14541                "".into()
14542            }
14543        }
14544
14545        impl EventEmitter<()> for TestAlternatePngItemView {}
14546        impl Focusable for TestAlternatePngItemView {
14547            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14548                self.focus_handle.clone()
14549            }
14550        }
14551
14552        impl Render for TestAlternatePngItemView {
14553            fn render(
14554                &mut self,
14555                _window: &mut Window,
14556                _cx: &mut Context<Self>,
14557            ) -> impl IntoElement {
14558                Empty
14559            }
14560        }
14561
14562        impl ProjectItem for TestAlternatePngItemView {
14563            type Item = TestPngItem;
14564
14565            fn for_project_item(
14566                _project: Entity<Project>,
14567                _pane: Option<&Pane>,
14568                _item: Entity<Self::Item>,
14569                _: &mut Window,
14570                cx: &mut Context<Self>,
14571            ) -> Self
14572            where
14573                Self: Sized,
14574            {
14575                Self {
14576                    focus_handle: cx.focus_handle(),
14577                }
14578            }
14579        }
14580
14581        #[gpui::test]
14582        async fn test_register_project_item(cx: &mut TestAppContext) {
14583            init_test(cx);
14584
14585            cx.update(|cx| {
14586                register_project_item::<TestPngItemView>(cx);
14587                register_project_item::<TestIpynbItemView>(cx);
14588            });
14589
14590            let fs = FakeFs::new(cx.executor());
14591            fs.insert_tree(
14592                "/root1",
14593                json!({
14594                    "one.png": "BINARYDATAHERE",
14595                    "two.ipynb": "{ totally a notebook }",
14596                    "three.txt": "editing text, sure why not?"
14597                }),
14598            )
14599            .await;
14600
14601            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14602            let (workspace, cx) =
14603                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14604
14605            let worktree_id = project.update(cx, |project, cx| {
14606                project.worktrees(cx).next().unwrap().read(cx).id()
14607            });
14608
14609            let handle = workspace
14610                .update_in(cx, |workspace, window, cx| {
14611                    let project_path = (worktree_id, rel_path("one.png"));
14612                    workspace.open_path(project_path, None, true, window, cx)
14613                })
14614                .await
14615                .unwrap();
14616
14617            // Now we can check if the handle we got back errored or not
14618            assert_eq!(
14619                handle.to_any_view().entity_type(),
14620                TypeId::of::<TestPngItemView>()
14621            );
14622
14623            let handle = workspace
14624                .update_in(cx, |workspace, window, cx| {
14625                    let project_path = (worktree_id, rel_path("two.ipynb"));
14626                    workspace.open_path(project_path, None, true, window, cx)
14627                })
14628                .await
14629                .unwrap();
14630
14631            assert_eq!(
14632                handle.to_any_view().entity_type(),
14633                TypeId::of::<TestIpynbItemView>()
14634            );
14635
14636            let handle = workspace
14637                .update_in(cx, |workspace, window, cx| {
14638                    let project_path = (worktree_id, rel_path("three.txt"));
14639                    workspace.open_path(project_path, None, true, window, cx)
14640                })
14641                .await;
14642            assert!(handle.is_err());
14643        }
14644
14645        #[gpui::test]
14646        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14647            init_test(cx);
14648
14649            cx.update(|cx| {
14650                register_project_item::<TestPngItemView>(cx);
14651                register_project_item::<TestAlternatePngItemView>(cx);
14652            });
14653
14654            let fs = FakeFs::new(cx.executor());
14655            fs.insert_tree(
14656                "/root1",
14657                json!({
14658                    "one.png": "BINARYDATAHERE",
14659                    "two.ipynb": "{ totally a notebook }",
14660                    "three.txt": "editing text, sure why not?"
14661                }),
14662            )
14663            .await;
14664            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14665            let (workspace, cx) =
14666                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14667            let worktree_id = project.update(cx, |project, cx| {
14668                project.worktrees(cx).next().unwrap().read(cx).id()
14669            });
14670
14671            let handle = workspace
14672                .update_in(cx, |workspace, window, cx| {
14673                    let project_path = (worktree_id, rel_path("one.png"));
14674                    workspace.open_path(project_path, None, true, window, cx)
14675                })
14676                .await
14677                .unwrap();
14678
14679            // This _must_ be the second item registered
14680            assert_eq!(
14681                handle.to_any_view().entity_type(),
14682                TypeId::of::<TestAlternatePngItemView>()
14683            );
14684
14685            let handle = workspace
14686                .update_in(cx, |workspace, window, cx| {
14687                    let project_path = (worktree_id, rel_path("three.txt"));
14688                    workspace.open_path(project_path, None, true, window, cx)
14689                })
14690                .await;
14691            assert!(handle.is_err());
14692        }
14693    }
14694
14695    #[gpui::test]
14696    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14697        init_test(cx);
14698
14699        let fs = FakeFs::new(cx.executor());
14700        let project = Project::test(fs, [], cx).await;
14701        let (workspace, _cx) =
14702            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14703
14704        // Test with status bar shown (default)
14705        workspace.read_with(cx, |workspace, cx| {
14706            let visible = workspace.status_bar_visible(cx);
14707            assert!(visible, "Status bar should be visible by default");
14708        });
14709
14710        // Test with status bar hidden
14711        cx.update_global(|store: &mut SettingsStore, cx| {
14712            store.update_user_settings(cx, |settings| {
14713                settings.status_bar.get_or_insert_default().show = Some(false);
14714            });
14715        });
14716
14717        workspace.read_with(cx, |workspace, cx| {
14718            let visible = workspace.status_bar_visible(cx);
14719            assert!(!visible, "Status bar should be hidden when show is false");
14720        });
14721
14722        // Test with status bar shown explicitly
14723        cx.update_global(|store: &mut SettingsStore, cx| {
14724            store.update_user_settings(cx, |settings| {
14725                settings.status_bar.get_or_insert_default().show = Some(true);
14726            });
14727        });
14728
14729        workspace.read_with(cx, |workspace, cx| {
14730            let visible = workspace.status_bar_visible(cx);
14731            assert!(visible, "Status bar should be visible when show is true");
14732        });
14733    }
14734
14735    #[gpui::test]
14736    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14737        init_test(cx);
14738
14739        let fs = FakeFs::new(cx.executor());
14740        let project = Project::test(fs, [], cx).await;
14741        let (multi_workspace, cx) =
14742            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14743        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14744        let panel = workspace.update_in(cx, |workspace, window, cx| {
14745            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14746            workspace.add_panel(panel.clone(), window, cx);
14747
14748            workspace
14749                .right_dock()
14750                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14751
14752            panel
14753        });
14754
14755        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14756        let item_a = cx.new(TestItem::new);
14757        let item_b = cx.new(TestItem::new);
14758        let item_a_id = item_a.entity_id();
14759        let item_b_id = item_b.entity_id();
14760
14761        pane.update_in(cx, |pane, window, cx| {
14762            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14763            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14764        });
14765
14766        pane.read_with(cx, |pane, _| {
14767            assert_eq!(pane.items_len(), 2);
14768            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14769        });
14770
14771        workspace.update_in(cx, |workspace, window, cx| {
14772            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14773        });
14774
14775        workspace.update_in(cx, |_, window, cx| {
14776            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14777        });
14778
14779        // Assert that the `pane::CloseActiveItem` action is handled at the
14780        // workspace level when one of the dock panels is focused and, in that
14781        // case, the center pane's active item is closed but the focus is not
14782        // moved.
14783        cx.dispatch_action(pane::CloseActiveItem::default());
14784        cx.run_until_parked();
14785
14786        pane.read_with(cx, |pane, _| {
14787            assert_eq!(pane.items_len(), 1);
14788            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14789        });
14790
14791        workspace.update_in(cx, |workspace, window, cx| {
14792            assert!(workspace.right_dock().read(cx).is_open());
14793            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14794        });
14795    }
14796
14797    #[gpui::test]
14798    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14799        init_test(cx);
14800        let fs = FakeFs::new(cx.executor());
14801
14802        let project_a = Project::test(fs.clone(), [], cx).await;
14803        let project_b = Project::test(fs, [], cx).await;
14804
14805        let multi_workspace_handle =
14806            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14807        cx.run_until_parked();
14808
14809        multi_workspace_handle
14810            .update(cx, |mw, _window, cx| {
14811                mw.open_sidebar(cx);
14812            })
14813            .unwrap();
14814
14815        let workspace_a = multi_workspace_handle
14816            .read_with(cx, |mw, _| mw.workspace().clone())
14817            .unwrap();
14818
14819        let _workspace_b = multi_workspace_handle
14820            .update(cx, |mw, window, cx| {
14821                mw.test_add_workspace(project_b, window, cx)
14822            })
14823            .unwrap();
14824
14825        // Switch to workspace A
14826        multi_workspace_handle
14827            .update(cx, |mw, window, cx| {
14828                let workspace = mw.workspaces().next().unwrap().clone();
14829                mw.activate(workspace, window, cx);
14830            })
14831            .unwrap();
14832
14833        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14834
14835        // Add a panel to workspace A's right dock and open the dock
14836        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14837            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14838            workspace.add_panel(panel.clone(), window, cx);
14839            workspace
14840                .right_dock()
14841                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14842            panel
14843        });
14844
14845        // Focus the panel through the workspace (matching existing test pattern)
14846        workspace_a.update_in(cx, |workspace, window, cx| {
14847            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14848        });
14849
14850        // Zoom the panel
14851        panel.update_in(cx, |panel, window, cx| {
14852            panel.set_zoomed(true, window, cx);
14853        });
14854
14855        // Verify the panel is zoomed and the dock is open
14856        workspace_a.update_in(cx, |workspace, window, cx| {
14857            assert!(
14858                workspace.right_dock().read(cx).is_open(),
14859                "dock should be open before switch"
14860            );
14861            assert!(
14862                panel.is_zoomed(window, cx),
14863                "panel should be zoomed before switch"
14864            );
14865            assert!(
14866                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14867                "panel should be focused before switch"
14868            );
14869        });
14870
14871        // Switch to workspace B
14872        multi_workspace_handle
14873            .update(cx, |mw, window, cx| {
14874                let workspace = mw.workspaces().nth(1).unwrap().clone();
14875                mw.activate(workspace, window, cx);
14876            })
14877            .unwrap();
14878        cx.run_until_parked();
14879
14880        // Switch back to workspace A
14881        multi_workspace_handle
14882            .update(cx, |mw, window, cx| {
14883                let workspace = mw.workspaces().next().unwrap().clone();
14884                mw.activate(workspace, window, cx);
14885            })
14886            .unwrap();
14887        cx.run_until_parked();
14888
14889        // Verify the panel is still zoomed and the dock is still open
14890        workspace_a.update_in(cx, |workspace, window, cx| {
14891            assert!(
14892                workspace.right_dock().read(cx).is_open(),
14893                "dock should still be open after switching back"
14894            );
14895            assert!(
14896                panel.is_zoomed(window, cx),
14897                "panel should still be zoomed after switching back"
14898            );
14899        });
14900    }
14901
14902    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14903        pane.read(cx)
14904            .items()
14905            .flat_map(|item| {
14906                item.project_paths(cx)
14907                    .into_iter()
14908                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14909            })
14910            .collect()
14911    }
14912
14913    pub fn init_test(cx: &mut TestAppContext) {
14914        cx.update(|cx| {
14915            let settings_store = SettingsStore::test(cx);
14916            cx.set_global(settings_store);
14917            cx.set_global(db::AppDatabase::test_new());
14918            theme_settings::init(theme::LoadThemes::JustBase, cx);
14919        });
14920    }
14921
14922    #[gpui::test]
14923    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14924        use settings::{ThemeName, ThemeSelection};
14925        use theme::SystemAppearance;
14926        use zed_actions::theme::ToggleMode;
14927
14928        init_test(cx);
14929
14930        let fs = FakeFs::new(cx.executor());
14931        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14932
14933        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14934            .await;
14935
14936        // Build a test project and workspace view so the test can invoke
14937        // the workspace action handler the same way the UI would.
14938        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14939        let (workspace, cx) =
14940            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14941
14942        // Seed the settings file with a plain static light theme so the
14943        // first toggle always starts from a known persisted state.
14944        workspace.update_in(cx, |_workspace, _window, cx| {
14945            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14946            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14947                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14948            });
14949        });
14950        cx.executor().advance_clock(Duration::from_millis(200));
14951        cx.run_until_parked();
14952
14953        // Confirm the initial persisted settings contain the static theme
14954        // we just wrote before any toggling happens.
14955        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14956        assert!(settings_text.contains(r#""theme": "One Light""#));
14957
14958        // Toggle once. This should migrate the persisted theme settings
14959        // into light/dark slots and enable system mode.
14960        workspace.update_in(cx, |workspace, window, cx| {
14961            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14962        });
14963        cx.executor().advance_clock(Duration::from_millis(200));
14964        cx.run_until_parked();
14965
14966        // 1. Static -> Dynamic
14967        // this assertion checks theme changed from static to dynamic.
14968        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14969        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14970        assert_eq!(
14971            parsed["theme"],
14972            serde_json::json!({
14973                "mode": "system",
14974                "light": "One Light",
14975                "dark": "One Dark"
14976            })
14977        );
14978
14979        // 2. Toggle again, suppose it will change the mode to light
14980        workspace.update_in(cx, |workspace, window, cx| {
14981            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14982        });
14983        cx.executor().advance_clock(Duration::from_millis(200));
14984        cx.run_until_parked();
14985
14986        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14987        assert!(settings_text.contains(r#""mode": "light""#));
14988    }
14989
14990    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14991        let item = TestProjectItem::new(id, path, cx);
14992        item.update(cx, |item, _| {
14993            item.is_dirty = true;
14994        });
14995        item
14996    }
14997
14998    #[gpui::test]
14999    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
15000        cx: &mut gpui::TestAppContext,
15001    ) {
15002        init_test(cx);
15003        let fs = FakeFs::new(cx.executor());
15004
15005        let project = Project::test(fs, [], cx).await;
15006        let (workspace, cx) =
15007            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
15008
15009        let panel = workspace.update_in(cx, |workspace, window, cx| {
15010            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
15011            workspace.add_panel(panel.clone(), window, cx);
15012            workspace
15013                .right_dock()
15014                .update(cx, |dock, cx| dock.set_open(true, window, cx));
15015            panel
15016        });
15017
15018        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
15019        pane.update_in(cx, |pane, window, cx| {
15020            let item = cx.new(TestItem::new);
15021            pane.add_item(Box::new(item), true, true, None, window, cx);
15022        });
15023
15024        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
15025        // mirrors the real-world flow and avoids side effects from directly
15026        // focusing the panel while the center pane is active.
15027        workspace.update_in(cx, |workspace, window, cx| {
15028            workspace.toggle_panel_focus::<TestPanel>(window, cx);
15029        });
15030
15031        panel.update_in(cx, |panel, window, cx| {
15032            panel.set_zoomed(true, window, cx);
15033        });
15034
15035        workspace.update_in(cx, |workspace, window, cx| {
15036            assert!(workspace.right_dock().read(cx).is_open());
15037            assert!(panel.is_zoomed(window, cx));
15038            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
15039        });
15040
15041        // Simulate a spurious pane::Event::Focus on the center pane while the
15042        // panel still has focus. This mirrors what happens during macOS window
15043        // activation: the center pane fires a focus event even though actual
15044        // focus remains on the dock panel.
15045        pane.update_in(cx, |_, _, cx| {
15046            cx.emit(pane::Event::Focus);
15047        });
15048
15049        // The dock must remain open because the panel had focus at the time the
15050        // event was processed. Before the fix, dock_to_preserve was None for
15051        // panels that don't implement pane(), causing the dock to close.
15052        workspace.update_in(cx, |workspace, window, cx| {
15053            assert!(
15054                workspace.right_dock().read(cx).is_open(),
15055                "Dock should stay open when its zoomed panel (without pane()) still has focus"
15056            );
15057            assert!(panel.is_zoomed(window, cx));
15058        });
15059    }
15060
15061    #[gpui::test]
15062    async fn test_panels_stay_open_after_position_change_and_settings_update(
15063        cx: &mut gpui::TestAppContext,
15064    ) {
15065        init_test(cx);
15066        let fs = FakeFs::new(cx.executor());
15067        let project = Project::test(fs, [], cx).await;
15068        let (workspace, cx) =
15069            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
15070
15071        // Add two panels to the left dock and open it.
15072        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
15073            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
15074            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
15075            workspace.add_panel(panel_a.clone(), window, cx);
15076            workspace.add_panel(panel_b.clone(), window, cx);
15077            workspace.left_dock().update(cx, |dock, cx| {
15078                dock.set_open(true, window, cx);
15079                dock.activate_panel(0, window, cx);
15080            });
15081            (panel_a, panel_b)
15082        });
15083
15084        workspace.update_in(cx, |workspace, _, cx| {
15085            assert!(workspace.left_dock().read(cx).is_open());
15086        });
15087
15088        // Simulate a feature flag changing default dock positions: both panels
15089        // move from Left to Right.
15090        workspace.update_in(cx, |_workspace, _window, cx| {
15091            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
15092            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
15093            cx.update_global::<SettingsStore, _>(|_, _| {});
15094        });
15095
15096        // Both panels should now be in the right dock.
15097        workspace.update_in(cx, |workspace, _, cx| {
15098            let right_dock = workspace.right_dock().read(cx);
15099            assert_eq!(right_dock.panels_len(), 2);
15100        });
15101
15102        // Open the right dock and activate panel_b (simulating the user
15103        // opening the panel after it moved).
15104        workspace.update_in(cx, |workspace, window, cx| {
15105            workspace.right_dock().update(cx, |dock, cx| {
15106                dock.set_open(true, window, cx);
15107                dock.activate_panel(1, window, cx);
15108            });
15109        });
15110
15111        // Now trigger another SettingsStore change
15112        workspace.update_in(cx, |_workspace, _window, cx| {
15113            cx.update_global::<SettingsStore, _>(|_, _| {});
15114        });
15115
15116        workspace.update_in(cx, |workspace, _, cx| {
15117            assert!(
15118                workspace.right_dock().read(cx).is_open(),
15119                "Right dock should still be open after a settings change"
15120            );
15121            assert_eq!(
15122                workspace.right_dock().read(cx).panels_len(),
15123                2,
15124                "Both panels should still be in the right dock"
15125            );
15126        });
15127    }
15128}