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;
    8pub mod notifications;
    9pub mod pane;
   10pub mod pane_group;
   11pub mod path_list {
   12    pub use util::path_list::{PathList, SerializedPathList};
   13}
   14mod persistence;
   15pub mod searchable;
   16mod security_modal;
   17pub mod shared_screen;
   18use db::smol::future::yield_now;
   19pub use shared_screen::SharedScreen;
   20mod status_bar;
   21pub mod tasks;
   22mod theme_preview;
   23mod toast_layer;
   24mod toolbar;
   25pub mod welcome;
   26mod workspace_settings;
   27
   28pub use crate::notifications::NotificationFrame;
   29pub use dock::Panel;
   30pub use multi_workspace::{
   31    CloseWorkspaceSidebar, DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace,
   32    MultiWorkspaceEvent, NextWorkspace, PreviousWorkspace, Sidebar, SidebarEvent, SidebarHandle,
   33    SidebarRenderState, SidebarSide, ToggleWorkspaceSidebar, sidebar_side_context_menu,
   34};
   35pub use path_list::{PathList, SerializedPathList};
   36pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   37
   38use anyhow::{Context as _, Result, anyhow};
   39use client::{
   40    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   41    proto::{self, ErrorCode, PanelId, PeerId},
   42};
   43use collections::{HashMap, HashSet, hash_map};
   44use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   45use fs::Fs;
   46use futures::{
   47    Future, FutureExt, StreamExt,
   48    channel::{
   49        mpsc::{self, UnboundedReceiver, UnboundedSender},
   50        oneshot,
   51    },
   52    future::{Shared, try_join_all},
   53};
   54use gpui::{
   55    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Axis, Bounds,
   56    Context, CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   57    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   58    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   59    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   60    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   61};
   62pub use history_manager::*;
   63pub use item::{
   64    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   65    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   66};
   67use itertools::Itertools;
   68use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   69pub use modal_layer::*;
   70use node_runtime::NodeRuntime;
   71use notifications::{
   72    DetachAndPromptErr, Notifications, dismiss_app_notification,
   73    simple_message_notification::MessageNotification,
   74};
   75pub use pane::*;
   76pub use pane_group::{
   77    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   78    SplitDirection,
   79};
   80use persistence::{SerializedWindowBounds, model::SerializedWorkspace};
   81pub use persistence::{
   82    WorkspaceDb, delete_unloaded_items,
   83    model::{
   84        DockStructure, ItemId, SerializedMultiWorkspace, SerializedWorkspaceLocation,
   85        SessionWorkspace,
   86    },
   87    read_serialized_multi_workspaces, resolve_worktree_workspaces,
   88};
   89use postage::stream::Stream;
   90use project::{
   91    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   92    WorktreeSettings,
   93    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   94    project_settings::ProjectSettings,
   95    toolchain_store::ToolchainStoreEvent,
   96    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   97};
   98use remote::{
   99    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
  100    remote_client::ConnectionIdentifier,
  101};
  102use schemars::JsonSchema;
  103use serde::Deserialize;
  104use session::AppSession;
  105use settings::{
  106    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  107};
  108
  109use sqlez::{
  110    bindable::{Bind, Column, StaticColumnCount},
  111    statement::Statement,
  112};
  113use status_bar::StatusBar;
  114pub use status_bar::StatusItemView;
  115use std::{
  116    any::TypeId,
  117    borrow::Cow,
  118    cell::RefCell,
  119    cmp,
  120    collections::VecDeque,
  121    env,
  122    hash::Hash,
  123    path::{Path, PathBuf},
  124    process::ExitStatus,
  125    rc::Rc,
  126    sync::{
  127        Arc, LazyLock,
  128        atomic::{AtomicBool, AtomicUsize},
  129    },
  130    time::Duration,
  131};
  132use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  133use theme::{ActiveTheme, SystemAppearance};
  134use theme_settings::ThemeSettings;
  135pub use toolbar::{
  136    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  137};
  138pub use ui;
  139use ui::{Window, prelude::*};
  140use util::{
  141    ResultExt, TryFutureExt,
  142    paths::{PathStyle, SanitizedPath},
  143    rel_path::RelPath,
  144    serde::default_true,
  145};
  146use uuid::Uuid;
  147pub use workspace_settings::{
  148    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  149    WorkspaceSettings,
  150};
  151use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  152
  153use crate::{dock::PanelSizeState, item::ItemBufferKind, notifications::NotificationId};
  154use crate::{
  155    persistence::{
  156        SerializedAxis,
  157        model::{DockData, SerializedItem, SerializedPane, SerializedPaneGroup},
  158    },
  159    security_modal::SecurityModal,
  160};
  161
  162pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  163
  164static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  165    env::var("ZED_WINDOW_SIZE")
  166        .ok()
  167        .as_deref()
  168        .and_then(parse_pixel_size_env_var)
  169});
  170
  171static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  172    env::var("ZED_WINDOW_POSITION")
  173        .ok()
  174        .as_deref()
  175        .and_then(parse_pixel_position_env_var)
  176});
  177
  178pub trait TerminalProvider {
  179    fn spawn(
  180        &self,
  181        task: SpawnInTerminal,
  182        window: &mut Window,
  183        cx: &mut App,
  184    ) -> Task<Option<Result<ExitStatus>>>;
  185}
  186
  187pub trait DebuggerProvider {
  188    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  189    fn start_session(
  190        &self,
  191        definition: DebugScenario,
  192        task_context: SharedTaskContext,
  193        active_buffer: Option<Entity<Buffer>>,
  194        worktree_id: Option<WorktreeId>,
  195        window: &mut Window,
  196        cx: &mut App,
  197    );
  198
  199    fn spawn_task_or_modal(
  200        &self,
  201        workspace: &mut Workspace,
  202        action: &Spawn,
  203        window: &mut Window,
  204        cx: &mut Context<Workspace>,
  205    );
  206
  207    fn task_scheduled(&self, cx: &mut App);
  208    fn debug_scenario_scheduled(&self, cx: &mut App);
  209    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  210
  211    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  212}
  213
  214/// Opens a file or directory.
  215#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  216#[action(namespace = workspace)]
  217pub struct Open {
  218    /// When true, opens in a new window. When false, adds to the current
  219    /// window as a new workspace (multi-workspace).
  220    #[serde(default = "Open::default_create_new_window")]
  221    pub create_new_window: bool,
  222}
  223
  224impl Open {
  225    pub const DEFAULT: Self = Self {
  226        create_new_window: true,
  227    };
  228
  229    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  230    /// the serde default and `Open::DEFAULT` stay in sync.
  231    fn default_create_new_window() -> bool {
  232        Self::DEFAULT.create_new_window
  233    }
  234}
  235
  236impl Default for Open {
  237    fn default() -> Self {
  238        Self::DEFAULT
  239    }
  240}
  241
  242actions!(
  243    workspace,
  244    [
  245        /// Activates the next pane in the workspace.
  246        ActivateNextPane,
  247        /// Activates the previous pane in the workspace.
  248        ActivatePreviousPane,
  249        /// Activates the last pane in the workspace.
  250        ActivateLastPane,
  251        /// Switches to the next window.
  252        ActivateNextWindow,
  253        /// Switches to the previous window.
  254        ActivatePreviousWindow,
  255        /// Adds a folder to the current project.
  256        AddFolderToProject,
  257        /// Clears all notifications.
  258        ClearAllNotifications,
  259        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  260        ClearNavigationHistory,
  261        /// Closes the active dock.
  262        CloseActiveDock,
  263        /// Closes all docks.
  264        CloseAllDocks,
  265        /// Toggles all docks.
  266        ToggleAllDocks,
  267        /// Closes the current window.
  268        CloseWindow,
  269        /// Closes the current project.
  270        CloseProject,
  271        /// Opens the feedback dialog.
  272        Feedback,
  273        /// Follows the next collaborator in the session.
  274        FollowNextCollaborator,
  275        /// Moves the focused panel to the next position.
  276        MoveFocusedPanelToNextPosition,
  277        /// Creates a new file.
  278        NewFile,
  279        /// Creates a new file in a vertical split.
  280        NewFileSplitVertical,
  281        /// Creates a new file in a horizontal split.
  282        NewFileSplitHorizontal,
  283        /// Opens a new search.
  284        NewSearch,
  285        /// Opens a new window.
  286        NewWindow,
  287        /// Opens multiple files.
  288        OpenFiles,
  289        /// Opens the current location in terminal.
  290        OpenInTerminal,
  291        /// Opens the component preview.
  292        OpenComponentPreview,
  293        /// Reloads the active item.
  294        ReloadActiveItem,
  295        /// Resets the active dock to its default size.
  296        ResetActiveDockSize,
  297        /// Resets all open docks to their default sizes.
  298        ResetOpenDocksSize,
  299        /// Reloads the application
  300        Reload,
  301        /// Saves the current file with a new name.
  302        SaveAs,
  303        /// Saves without formatting.
  304        SaveWithoutFormat,
  305        /// Shuts down all debug adapters.
  306        ShutdownDebugAdapters,
  307        /// Suppresses the current notification.
  308        SuppressNotification,
  309        /// Toggles the bottom dock.
  310        ToggleBottomDock,
  311        /// Toggles centered layout mode.
  312        ToggleCenteredLayout,
  313        /// Toggles edit prediction feature globally for all files.
  314        ToggleEditPrediction,
  315        /// Toggles the left dock.
  316        ToggleLeftDock,
  317        /// Toggles the right dock.
  318        ToggleRightDock,
  319        /// Toggles zoom on the active pane.
  320        ToggleZoom,
  321        /// Toggles read-only mode for the active item (if supported by that item).
  322        ToggleReadOnlyFile,
  323        /// Zooms in on the active pane.
  324        ZoomIn,
  325        /// Zooms out of the active pane.
  326        ZoomOut,
  327        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  328        /// If the modal is shown already, closes it without trusting any worktree.
  329        ToggleWorktreeSecurity,
  330        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  331        /// Requires restart to take effect on already opened projects.
  332        ClearTrustedWorktrees,
  333        /// Stops following a collaborator.
  334        Unfollow,
  335        /// Restores the banner.
  336        RestoreBanner,
  337        /// Toggles expansion of the selected item.
  338        ToggleExpandItem,
  339    ]
  340);
  341
  342/// Activates a specific pane by its index.
  343#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  344#[action(namespace = workspace)]
  345pub struct ActivatePane(pub usize);
  346
  347/// Moves an item to a specific pane by index.
  348#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  349#[action(namespace = workspace)]
  350#[serde(deny_unknown_fields)]
  351pub struct MoveItemToPane {
  352    #[serde(default = "default_1")]
  353    pub destination: usize,
  354    #[serde(default = "default_true")]
  355    pub focus: bool,
  356    #[serde(default)]
  357    pub clone: bool,
  358}
  359
  360fn default_1() -> usize {
  361    1
  362}
  363
  364/// Moves an item to a pane in the specified direction.
  365#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  366#[action(namespace = workspace)]
  367#[serde(deny_unknown_fields)]
  368pub struct MoveItemToPaneInDirection {
  369    #[serde(default = "default_right")]
  370    pub direction: SplitDirection,
  371    #[serde(default = "default_true")]
  372    pub focus: bool,
  373    #[serde(default)]
  374    pub clone: bool,
  375}
  376
  377/// Creates a new file in a split of the desired direction.
  378#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  379#[action(namespace = workspace)]
  380#[serde(deny_unknown_fields)]
  381pub struct NewFileSplit(pub SplitDirection);
  382
  383fn default_right() -> SplitDirection {
  384    SplitDirection::Right
  385}
  386
  387/// Saves all open files in the workspace.
  388#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  389#[action(namespace = workspace)]
  390#[serde(deny_unknown_fields)]
  391pub struct SaveAll {
  392    #[serde(default)]
  393    pub save_intent: Option<SaveIntent>,
  394}
  395
  396/// Saves the current file with the specified options.
  397#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  398#[action(namespace = workspace)]
  399#[serde(deny_unknown_fields)]
  400pub struct Save {
  401    #[serde(default)]
  402    pub save_intent: Option<SaveIntent>,
  403}
  404
  405/// Moves Focus to the central panes in the workspace.
  406#[derive(Clone, Debug, PartialEq, Eq, Action)]
  407#[action(namespace = workspace)]
  408pub struct FocusCenterPane;
  409
  410///  Closes all items and panes in the workspace.
  411#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  412#[action(namespace = workspace)]
  413#[serde(deny_unknown_fields)]
  414pub struct CloseAllItemsAndPanes {
  415    #[serde(default)]
  416    pub save_intent: Option<SaveIntent>,
  417}
  418
  419/// Closes all inactive tabs and panes in the workspace.
  420#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  421#[action(namespace = workspace)]
  422#[serde(deny_unknown_fields)]
  423pub struct CloseInactiveTabsAndPanes {
  424    #[serde(default)]
  425    pub save_intent: Option<SaveIntent>,
  426}
  427
  428/// Closes the active item across all panes.
  429#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  430#[action(namespace = workspace)]
  431#[serde(deny_unknown_fields)]
  432pub struct CloseItemInAllPanes {
  433    #[serde(default)]
  434    pub save_intent: Option<SaveIntent>,
  435    #[serde(default)]
  436    pub close_pinned: bool,
  437}
  438
  439/// Sends a sequence of keystrokes to the active element.
  440#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  441#[action(namespace = workspace)]
  442pub struct SendKeystrokes(pub String);
  443
  444actions!(
  445    project_symbols,
  446    [
  447        /// Toggles the project symbols search.
  448        #[action(name = "Toggle")]
  449        ToggleProjectSymbols
  450    ]
  451);
  452
  453/// Toggles the file finder interface.
  454#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  455#[action(namespace = file_finder, name = "Toggle")]
  456#[serde(deny_unknown_fields)]
  457pub struct ToggleFileFinder {
  458    #[serde(default)]
  459    pub separate_history: bool,
  460}
  461
  462/// Opens a new terminal in the center.
  463#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  464#[action(namespace = workspace)]
  465#[serde(deny_unknown_fields)]
  466pub struct NewCenterTerminal {
  467    /// If true, creates a local terminal even in remote projects.
  468    #[serde(default)]
  469    pub local: bool,
  470}
  471
  472/// Opens a new terminal.
  473#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  474#[action(namespace = workspace)]
  475#[serde(deny_unknown_fields)]
  476pub struct NewTerminal {
  477    /// If true, creates a local terminal even in remote projects.
  478    #[serde(default)]
  479    pub local: bool,
  480}
  481
  482/// Increases size of a currently focused dock by a given amount of pixels.
  483#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  484#[action(namespace = workspace)]
  485#[serde(deny_unknown_fields)]
  486pub struct IncreaseActiveDockSize {
  487    /// For 0px parameter, uses UI font size value.
  488    #[serde(default)]
  489    pub px: u32,
  490}
  491
  492/// Decreases 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 DecreaseActiveDockSize {
  497    /// For 0px parameter, uses UI font size value.
  498    #[serde(default)]
  499    pub px: u32,
  500}
  501
  502/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  503#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  504#[action(namespace = workspace)]
  505#[serde(deny_unknown_fields)]
  506pub struct IncreaseOpenDocksSize {
  507    /// For 0px parameter, uses UI font size value.
  508    #[serde(default)]
  509    pub px: u32,
  510}
  511
  512/// Decreases 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 DecreaseOpenDocksSize {
  517    /// For 0px parameter, uses UI font size value.
  518    #[serde(default)]
  519    pub px: u32,
  520}
  521
  522actions!(
  523    workspace,
  524    [
  525        /// Activates the pane to the left.
  526        ActivatePaneLeft,
  527        /// Activates the pane to the right.
  528        ActivatePaneRight,
  529        /// Activates the pane above.
  530        ActivatePaneUp,
  531        /// Activates the pane below.
  532        ActivatePaneDown,
  533        /// Swaps the current pane with the one to the left.
  534        SwapPaneLeft,
  535        /// Swaps the current pane with the one to the right.
  536        SwapPaneRight,
  537        /// Swaps the current pane with the one above.
  538        SwapPaneUp,
  539        /// Swaps the current pane with the one below.
  540        SwapPaneDown,
  541        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  542        SwapPaneAdjacent,
  543        /// Move the current pane to be at the far left.
  544        MovePaneLeft,
  545        /// Move the current pane to be at the far right.
  546        MovePaneRight,
  547        /// Move the current pane to be at the very top.
  548        MovePaneUp,
  549        /// Move the current pane to be at the very bottom.
  550        MovePaneDown,
  551    ]
  552);
  553
  554#[derive(PartialEq, Eq, Debug)]
  555pub enum CloseIntent {
  556    /// Quit the program entirely.
  557    Quit,
  558    /// Close a window.
  559    CloseWindow,
  560    /// Replace the workspace in an existing window.
  561    ReplaceWindow,
  562}
  563
  564#[derive(Clone)]
  565pub struct Toast {
  566    id: NotificationId,
  567    msg: Cow<'static, str>,
  568    autohide: bool,
  569    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  570}
  571
  572impl Toast {
  573    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  574        Toast {
  575            id,
  576            msg: msg.into(),
  577            on_click: None,
  578            autohide: false,
  579        }
  580    }
  581
  582    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  583    where
  584        M: Into<Cow<'static, str>>,
  585        F: Fn(&mut Window, &mut App) + 'static,
  586    {
  587        self.on_click = Some((message.into(), Arc::new(on_click)));
  588        self
  589    }
  590
  591    pub fn autohide(mut self) -> Self {
  592        self.autohide = true;
  593        self
  594    }
  595}
  596
  597impl PartialEq for Toast {
  598    fn eq(&self, other: &Self) -> bool {
  599        self.id == other.id
  600            && self.msg == other.msg
  601            && self.on_click.is_some() == other.on_click.is_some()
  602    }
  603}
  604
  605/// Opens a new terminal with the specified working directory.
  606#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  607#[action(namespace = workspace)]
  608#[serde(deny_unknown_fields)]
  609pub struct OpenTerminal {
  610    pub working_directory: PathBuf,
  611    /// If true, creates a local terminal even in remote projects.
  612    #[serde(default)]
  613    pub local: bool,
  614}
  615
  616#[derive(
  617    Clone,
  618    Copy,
  619    Debug,
  620    Default,
  621    Hash,
  622    PartialEq,
  623    Eq,
  624    PartialOrd,
  625    Ord,
  626    serde::Serialize,
  627    serde::Deserialize,
  628)]
  629pub struct WorkspaceId(i64);
  630
  631impl WorkspaceId {
  632    pub fn from_i64(value: i64) -> Self {
  633        Self(value)
  634    }
  635}
  636
  637impl StaticColumnCount for WorkspaceId {}
  638impl Bind for WorkspaceId {
  639    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  640        self.0.bind(statement, start_index)
  641    }
  642}
  643impl Column for WorkspaceId {
  644    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  645        i64::column(statement, start_index)
  646            .map(|(i, next_index)| (Self(i), next_index))
  647            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  648    }
  649}
  650impl From<WorkspaceId> for i64 {
  651    fn from(val: WorkspaceId) -> Self {
  652        val.0
  653    }
  654}
  655
  656fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  657    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  658        workspace_window
  659            .update(cx, |multi_workspace, window, cx| {
  660                let workspace = multi_workspace.workspace().clone();
  661                workspace.update(cx, |workspace, cx| {
  662                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  663                });
  664            })
  665            .ok();
  666    } else {
  667        let task = Workspace::new_local(
  668            Vec::new(),
  669            app_state.clone(),
  670            None,
  671            None,
  672            None,
  673            OpenMode::Replace,
  674            cx,
  675        );
  676        cx.spawn(async move |cx| {
  677            let OpenResult { window, .. } = task.await?;
  678            window.update(cx, |multi_workspace, window, cx| {
  679                window.activate_window();
  680                let workspace = multi_workspace.workspace().clone();
  681                workspace.update(cx, |workspace, cx| {
  682                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  683                });
  684            })?;
  685            anyhow::Ok(())
  686        })
  687        .detach_and_log_err(cx);
  688    }
  689}
  690
  691pub fn prompt_for_open_path_and_open(
  692    workspace: &mut Workspace,
  693    app_state: Arc<AppState>,
  694    options: PathPromptOptions,
  695    create_new_window: bool,
  696    window: &mut Window,
  697    cx: &mut Context<Workspace>,
  698) {
  699    let paths = workspace.prompt_for_open_path(
  700        options,
  701        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  702        window,
  703        cx,
  704    );
  705    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  706    cx.spawn_in(window, async move |this, cx| {
  707        let Some(paths) = paths.await.log_err().flatten() else {
  708            return;
  709        };
  710        if !create_new_window {
  711            if let Some(handle) = multi_workspace_handle {
  712                if let Some(task) = handle
  713                    .update(cx, |multi_workspace, window, cx| {
  714                        multi_workspace.open_project(paths, OpenMode::Replace, window, cx)
  715                    })
  716                    .log_err()
  717                {
  718                    task.await.log_err();
  719                }
  720                return;
  721            }
  722        }
  723        if let Some(task) = this
  724            .update_in(cx, |this, window, cx| {
  725                this.open_workspace_for_paths(OpenMode::NewWindow, paths, window, cx)
  726            })
  727            .log_err()
  728        {
  729            task.await.log_err();
  730        }
  731    })
  732    .detach();
  733}
  734
  735pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  736    component::init();
  737    theme_preview::init(cx);
  738    toast_layer::init(cx);
  739    history_manager::init(app_state.fs.clone(), cx);
  740
  741    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  742        .on_action(|_: &Reload, cx| reload(cx))
  743        .on_action(|_: &Open, cx: &mut App| {
  744            let app_state = AppState::global(cx);
  745            prompt_and_open_paths(
  746                app_state,
  747                PathPromptOptions {
  748                    files: true,
  749                    directories: true,
  750                    multiple: true,
  751                    prompt: None,
  752                },
  753                cx,
  754            );
  755        })
  756        .on_action(|_: &OpenFiles, cx: &mut App| {
  757            let directories = cx.can_select_mixed_files_and_dirs();
  758            let app_state = AppState::global(cx);
  759            prompt_and_open_paths(
  760                app_state,
  761                PathPromptOptions {
  762                    files: true,
  763                    directories,
  764                    multiple: true,
  765                    prompt: None,
  766                },
  767                cx,
  768            );
  769        });
  770}
  771
  772type BuildProjectItemFn =
  773    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  774
  775type BuildProjectItemForPathFn =
  776    fn(
  777        &Entity<Project>,
  778        &ProjectPath,
  779        &mut Window,
  780        &mut App,
  781    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  782
  783#[derive(Clone, Default)]
  784struct ProjectItemRegistry {
  785    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  786    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  787}
  788
  789impl ProjectItemRegistry {
  790    fn register<T: ProjectItem>(&mut self) {
  791        self.build_project_item_fns_by_type.insert(
  792            TypeId::of::<T::Item>(),
  793            |item, project, pane, window, cx| {
  794                let item = item.downcast().unwrap();
  795                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  796                    as Box<dyn ItemHandle>
  797            },
  798        );
  799        self.build_project_item_for_path_fns
  800            .push(|project, project_path, window, cx| {
  801                let project_path = project_path.clone();
  802                let is_file = project
  803                    .read(cx)
  804                    .entry_for_path(&project_path, cx)
  805                    .is_some_and(|entry| entry.is_file());
  806                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  807                let is_local = project.read(cx).is_local();
  808                let project_item =
  809                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  810                let project = project.clone();
  811                Some(window.spawn(cx, async move |cx| {
  812                    match project_item.await.with_context(|| {
  813                        format!(
  814                            "opening project path {:?}",
  815                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  816                        )
  817                    }) {
  818                        Ok(project_item) => {
  819                            let project_item = project_item;
  820                            let project_entry_id: Option<ProjectEntryId> =
  821                                project_item.read_with(cx, project::ProjectItem::entry_id);
  822                            let build_workspace_item = Box::new(
  823                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  824                                    Box::new(cx.new(|cx| {
  825                                        T::for_project_item(
  826                                            project,
  827                                            Some(pane),
  828                                            project_item,
  829                                            window,
  830                                            cx,
  831                                        )
  832                                    })) as Box<dyn ItemHandle>
  833                                },
  834                            ) as Box<_>;
  835                            Ok((project_entry_id, build_workspace_item))
  836                        }
  837                        Err(e) => {
  838                            log::warn!("Failed to open a project item: {e:#}");
  839                            if e.error_code() == ErrorCode::Internal {
  840                                if let Some(abs_path) =
  841                                    entry_abs_path.as_deref().filter(|_| is_file)
  842                                {
  843                                    if let Some(broken_project_item_view) =
  844                                        cx.update(|window, cx| {
  845                                            T::for_broken_project_item(
  846                                                abs_path, is_local, &e, window, cx,
  847                                            )
  848                                        })?
  849                                    {
  850                                        let build_workspace_item = Box::new(
  851                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  852                                                cx.new(|_| broken_project_item_view).boxed_clone()
  853                                            },
  854                                        )
  855                                        as Box<_>;
  856                                        return Ok((None, build_workspace_item));
  857                                    }
  858                                }
  859                            }
  860                            Err(e)
  861                        }
  862                    }
  863                }))
  864            });
  865    }
  866
  867    fn open_path(
  868        &self,
  869        project: &Entity<Project>,
  870        path: &ProjectPath,
  871        window: &mut Window,
  872        cx: &mut App,
  873    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  874        let Some(open_project_item) = self
  875            .build_project_item_for_path_fns
  876            .iter()
  877            .rev()
  878            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  879        else {
  880            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  881        };
  882        open_project_item
  883    }
  884
  885    fn build_item<T: project::ProjectItem>(
  886        &self,
  887        item: Entity<T>,
  888        project: Entity<Project>,
  889        pane: Option<&Pane>,
  890        window: &mut Window,
  891        cx: &mut App,
  892    ) -> Option<Box<dyn ItemHandle>> {
  893        let build = self
  894            .build_project_item_fns_by_type
  895            .get(&TypeId::of::<T>())?;
  896        Some(build(item.into_any(), project, pane, window, cx))
  897    }
  898}
  899
  900type WorkspaceItemBuilder =
  901    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  902
  903impl Global for ProjectItemRegistry {}
  904
  905/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  906/// items will get a chance to open the file, starting from the project item that
  907/// was added last.
  908pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  909    cx.default_global::<ProjectItemRegistry>().register::<I>();
  910}
  911
  912#[derive(Default)]
  913pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  914
  915struct FollowableViewDescriptor {
  916    from_state_proto: fn(
  917        Entity<Workspace>,
  918        ViewId,
  919        &mut Option<proto::view::Variant>,
  920        &mut Window,
  921        &mut App,
  922    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  923    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  924}
  925
  926impl Global for FollowableViewRegistry {}
  927
  928impl FollowableViewRegistry {
  929    pub fn register<I: FollowableItem>(cx: &mut App) {
  930        cx.default_global::<Self>().0.insert(
  931            TypeId::of::<I>(),
  932            FollowableViewDescriptor {
  933                from_state_proto: |workspace, id, state, window, cx| {
  934                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  935                        cx.foreground_executor()
  936                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  937                    })
  938                },
  939                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  940            },
  941        );
  942    }
  943
  944    pub fn from_state_proto(
  945        workspace: Entity<Workspace>,
  946        view_id: ViewId,
  947        mut state: Option<proto::view::Variant>,
  948        window: &mut Window,
  949        cx: &mut App,
  950    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  951        cx.update_default_global(|this: &mut Self, cx| {
  952            this.0.values().find_map(|descriptor| {
  953                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  954            })
  955        })
  956    }
  957
  958    pub fn to_followable_view(
  959        view: impl Into<AnyView>,
  960        cx: &App,
  961    ) -> Option<Box<dyn FollowableItemHandle>> {
  962        let this = cx.try_global::<Self>()?;
  963        let view = view.into();
  964        let descriptor = this.0.get(&view.entity_type())?;
  965        Some((descriptor.to_followable_view)(&view))
  966    }
  967}
  968
  969#[derive(Copy, Clone)]
  970struct SerializableItemDescriptor {
  971    deserialize: fn(
  972        Entity<Project>,
  973        WeakEntity<Workspace>,
  974        WorkspaceId,
  975        ItemId,
  976        &mut Window,
  977        &mut Context<Pane>,
  978    ) -> Task<Result<Box<dyn ItemHandle>>>,
  979    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  980    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  981}
  982
  983#[derive(Default)]
  984struct SerializableItemRegistry {
  985    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  986    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  987}
  988
  989impl Global for SerializableItemRegistry {}
  990
  991impl SerializableItemRegistry {
  992    fn deserialize(
  993        item_kind: &str,
  994        project: Entity<Project>,
  995        workspace: WeakEntity<Workspace>,
  996        workspace_id: WorkspaceId,
  997        item_item: ItemId,
  998        window: &mut Window,
  999        cx: &mut Context<Pane>,
 1000    ) -> Task<Result<Box<dyn ItemHandle>>> {
 1001        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1002            return Task::ready(Err(anyhow!(
 1003                "cannot deserialize {}, descriptor not found",
 1004                item_kind
 1005            )));
 1006        };
 1007
 1008        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1009    }
 1010
 1011    fn cleanup(
 1012        item_kind: &str,
 1013        workspace_id: WorkspaceId,
 1014        loaded_items: Vec<ItemId>,
 1015        window: &mut Window,
 1016        cx: &mut App,
 1017    ) -> Task<Result<()>> {
 1018        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1019            return Task::ready(Err(anyhow!(
 1020                "cannot cleanup {}, descriptor not found",
 1021                item_kind
 1022            )));
 1023        };
 1024
 1025        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1026    }
 1027
 1028    fn view_to_serializable_item_handle(
 1029        view: AnyView,
 1030        cx: &App,
 1031    ) -> Option<Box<dyn SerializableItemHandle>> {
 1032        let this = cx.try_global::<Self>()?;
 1033        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1034        Some((descriptor.view_to_serializable_item)(view))
 1035    }
 1036
 1037    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1038        let this = cx.try_global::<Self>()?;
 1039        this.descriptors_by_kind.get(item_kind).copied()
 1040    }
 1041}
 1042
 1043pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1044    let serialized_item_kind = I::serialized_item_kind();
 1045
 1046    let registry = cx.default_global::<SerializableItemRegistry>();
 1047    let descriptor = SerializableItemDescriptor {
 1048        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1049            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1050            cx.foreground_executor()
 1051                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1052        },
 1053        cleanup: |workspace_id, loaded_items, window, cx| {
 1054            I::cleanup(workspace_id, loaded_items, window, cx)
 1055        },
 1056        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1057    };
 1058    registry
 1059        .descriptors_by_kind
 1060        .insert(Arc::from(serialized_item_kind), descriptor);
 1061    registry
 1062        .descriptors_by_type
 1063        .insert(TypeId::of::<I>(), descriptor);
 1064}
 1065
 1066pub struct AppState {
 1067    pub languages: Arc<LanguageRegistry>,
 1068    pub client: Arc<Client>,
 1069    pub user_store: Entity<UserStore>,
 1070    pub workspace_store: Entity<WorkspaceStore>,
 1071    pub fs: Arc<dyn fs::Fs>,
 1072    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1073    pub node_runtime: NodeRuntime,
 1074    pub session: Entity<AppSession>,
 1075}
 1076
 1077struct GlobalAppState(Arc<AppState>);
 1078
 1079impl Global for GlobalAppState {}
 1080
 1081pub struct WorkspaceStore {
 1082    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1083    client: Arc<Client>,
 1084    _subscriptions: Vec<client::Subscription>,
 1085}
 1086
 1087#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1088pub enum CollaboratorId {
 1089    PeerId(PeerId),
 1090    Agent,
 1091}
 1092
 1093impl From<PeerId> for CollaboratorId {
 1094    fn from(peer_id: PeerId) -> Self {
 1095        CollaboratorId::PeerId(peer_id)
 1096    }
 1097}
 1098
 1099impl From<&PeerId> for CollaboratorId {
 1100    fn from(peer_id: &PeerId) -> Self {
 1101        CollaboratorId::PeerId(*peer_id)
 1102    }
 1103}
 1104
 1105#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1106struct Follower {
 1107    project_id: Option<u64>,
 1108    peer_id: PeerId,
 1109}
 1110
 1111impl AppState {
 1112    #[track_caller]
 1113    pub fn global(cx: &App) -> Arc<Self> {
 1114        cx.global::<GlobalAppState>().0.clone()
 1115    }
 1116    pub fn try_global(cx: &App) -> Option<Arc<Self>> {
 1117        cx.try_global::<GlobalAppState>()
 1118            .map(|state| state.0.clone())
 1119    }
 1120    pub fn set_global(state: Arc<AppState>, cx: &mut App) {
 1121        cx.set_global(GlobalAppState(state));
 1122    }
 1123
 1124    #[cfg(any(test, feature = "test-support"))]
 1125    pub fn test(cx: &mut App) -> Arc<Self> {
 1126        use fs::Fs;
 1127        use node_runtime::NodeRuntime;
 1128        use session::Session;
 1129        use settings::SettingsStore;
 1130
 1131        if !cx.has_global::<SettingsStore>() {
 1132            let settings_store = SettingsStore::test(cx);
 1133            cx.set_global(settings_store);
 1134        }
 1135
 1136        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1137        <dyn Fs>::set_global(fs.clone(), cx);
 1138        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1139        let clock = Arc::new(clock::FakeSystemClock::new());
 1140        let http_client = http_client::FakeHttpClient::with_404_response();
 1141        let client = Client::new(clock, http_client, cx);
 1142        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1143        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1144        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1145
 1146        theme_settings::init(theme::LoadThemes::JustBase, cx);
 1147        client::init(&client, cx);
 1148
 1149        Arc::new(Self {
 1150            client,
 1151            fs,
 1152            languages,
 1153            user_store,
 1154            workspace_store,
 1155            node_runtime: NodeRuntime::unavailable(),
 1156            build_window_options: |_, _| Default::default(),
 1157            session,
 1158        })
 1159    }
 1160}
 1161
 1162struct DelayedDebouncedEditAction {
 1163    task: Option<Task<()>>,
 1164    cancel_channel: Option<oneshot::Sender<()>>,
 1165}
 1166
 1167impl DelayedDebouncedEditAction {
 1168    fn new() -> DelayedDebouncedEditAction {
 1169        DelayedDebouncedEditAction {
 1170            task: None,
 1171            cancel_channel: None,
 1172        }
 1173    }
 1174
 1175    fn fire_new<F>(
 1176        &mut self,
 1177        delay: Duration,
 1178        window: &mut Window,
 1179        cx: &mut Context<Workspace>,
 1180        func: F,
 1181    ) where
 1182        F: 'static
 1183            + Send
 1184            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1185    {
 1186        if let Some(channel) = self.cancel_channel.take() {
 1187            _ = channel.send(());
 1188        }
 1189
 1190        let (sender, mut receiver) = oneshot::channel::<()>();
 1191        self.cancel_channel = Some(sender);
 1192
 1193        let previous_task = self.task.take();
 1194        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1195            let mut timer = cx.background_executor().timer(delay).fuse();
 1196            if let Some(previous_task) = previous_task {
 1197                previous_task.await;
 1198            }
 1199
 1200            futures::select_biased! {
 1201                _ = receiver => return,
 1202                    _ = timer => {}
 1203            }
 1204
 1205            if let Some(result) = workspace
 1206                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1207                .log_err()
 1208            {
 1209                result.await.log_err();
 1210            }
 1211        }));
 1212    }
 1213}
 1214
 1215pub enum Event {
 1216    PaneAdded(Entity<Pane>),
 1217    PaneRemoved,
 1218    ItemAdded {
 1219        item: Box<dyn ItemHandle>,
 1220    },
 1221    ActiveItemChanged,
 1222    ItemRemoved {
 1223        item_id: EntityId,
 1224    },
 1225    UserSavedItem {
 1226        pane: WeakEntity<Pane>,
 1227        item: Box<dyn WeakItemHandle>,
 1228        save_intent: SaveIntent,
 1229    },
 1230    ContactRequestedJoin(u64),
 1231    WorkspaceCreated(WeakEntity<Workspace>),
 1232    OpenBundledFile {
 1233        text: Cow<'static, str>,
 1234        title: &'static str,
 1235        language: &'static str,
 1236    },
 1237    ZoomChanged,
 1238    ModalOpened,
 1239    Activate,
 1240    PanelAdded(AnyView),
 1241}
 1242
 1243#[derive(Debug, Clone)]
 1244pub enum OpenVisible {
 1245    All,
 1246    None,
 1247    OnlyFiles,
 1248    OnlyDirectories,
 1249}
 1250
 1251enum WorkspaceLocation {
 1252    // Valid local paths or SSH project to serialize
 1253    Location(SerializedWorkspaceLocation, PathList),
 1254    // No valid location found hence clear session id
 1255    DetachFromSession,
 1256    // No valid location found to serialize
 1257    None,
 1258}
 1259
 1260type PromptForNewPath = Box<
 1261    dyn Fn(
 1262        &mut Workspace,
 1263        DirectoryLister,
 1264        Option<String>,
 1265        &mut Window,
 1266        &mut Context<Workspace>,
 1267    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1268>;
 1269
 1270type PromptForOpenPath = Box<
 1271    dyn Fn(
 1272        &mut Workspace,
 1273        DirectoryLister,
 1274        &mut Window,
 1275        &mut Context<Workspace>,
 1276    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1277>;
 1278
 1279#[derive(Default)]
 1280struct DispatchingKeystrokes {
 1281    dispatched: HashSet<Vec<Keystroke>>,
 1282    queue: VecDeque<Keystroke>,
 1283    task: Option<Shared<Task<()>>>,
 1284}
 1285
 1286/// Collects everything project-related for a certain window opened.
 1287/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1288///
 1289/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1290/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1291/// that can be used to register a global action to be triggered from any place in the window.
 1292pub struct Workspace {
 1293    weak_self: WeakEntity<Self>,
 1294    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1295    zoomed: Option<AnyWeakView>,
 1296    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1297    zoomed_position: Option<DockPosition>,
 1298    center: PaneGroup,
 1299    left_dock: Entity<Dock>,
 1300    bottom_dock: Entity<Dock>,
 1301    right_dock: Entity<Dock>,
 1302    panes: Vec<Entity<Pane>>,
 1303    active_worktree_override: Option<WorktreeId>,
 1304    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1305    active_pane: Entity<Pane>,
 1306    last_active_center_pane: Option<WeakEntity<Pane>>,
 1307    last_active_view_id: Option<proto::ViewId>,
 1308    status_bar: Entity<StatusBar>,
 1309    pub(crate) modal_layer: Entity<ModalLayer>,
 1310    toast_layer: Entity<ToastLayer>,
 1311    titlebar_item: Option<AnyView>,
 1312    notifications: Notifications,
 1313    suppressed_notifications: HashSet<NotificationId>,
 1314    project: Entity<Project>,
 1315    follower_states: HashMap<CollaboratorId, FollowerState>,
 1316    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1317    window_edited: bool,
 1318    last_window_title: Option<String>,
 1319    dirty_items: HashMap<EntityId, Subscription>,
 1320    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1321    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1322    database_id: Option<WorkspaceId>,
 1323    app_state: Arc<AppState>,
 1324    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1325    _subscriptions: Vec<Subscription>,
 1326    _apply_leader_updates: Task<Result<()>>,
 1327    _observe_current_user: Task<Result<()>>,
 1328    _schedule_serialize_workspace: Option<Task<()>>,
 1329    _serialize_workspace_task: Option<Task<()>>,
 1330    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1331    pane_history_timestamp: Arc<AtomicUsize>,
 1332    bounds: Bounds<Pixels>,
 1333    pub centered_layout: bool,
 1334    bounds_save_task_queued: Option<Task<()>>,
 1335    on_prompt_for_new_path: Option<PromptForNewPath>,
 1336    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1337    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1338    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1339    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1340    _items_serializer: Task<Result<()>>,
 1341    session_id: Option<String>,
 1342    scheduled_tasks: Vec<Task<()>>,
 1343    last_open_dock_positions: Vec<DockPosition>,
 1344    removing: bool,
 1345    _panels_task: Option<Task<Result<()>>>,
 1346    sidebar_focus_handle: Option<FocusHandle>,
 1347    multi_workspace: Option<WeakEntity<MultiWorkspace>>,
 1348}
 1349
 1350impl EventEmitter<Event> for Workspace {}
 1351
 1352#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1353pub struct ViewId {
 1354    pub creator: CollaboratorId,
 1355    pub id: u64,
 1356}
 1357
 1358pub struct FollowerState {
 1359    center_pane: Entity<Pane>,
 1360    dock_pane: Option<Entity<Pane>>,
 1361    active_view_id: Option<ViewId>,
 1362    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1363}
 1364
 1365struct FollowerView {
 1366    view: Box<dyn FollowableItemHandle>,
 1367    location: Option<proto::PanelId>,
 1368}
 1369
 1370#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 1371pub enum OpenMode {
 1372    /// Open the workspace in a new window.
 1373    NewWindow,
 1374    /// Add to the window's multi workspace without activating it (used during deserialization).
 1375    Add,
 1376    /// Add to the window's multi workspace and activate it.
 1377    #[default]
 1378    Activate,
 1379    /// Replace the currently active workspace, and any of it's linked workspaces
 1380    Replace,
 1381}
 1382
 1383impl Workspace {
 1384    pub fn new(
 1385        workspace_id: Option<WorkspaceId>,
 1386        project: Entity<Project>,
 1387        app_state: Arc<AppState>,
 1388        window: &mut Window,
 1389        cx: &mut Context<Self>,
 1390    ) -> Self {
 1391        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1392            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1393                if let TrustedWorktreesEvent::Trusted(..) = e {
 1394                    // Do not persist auto trusted worktrees
 1395                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1396                        worktrees_store.update(cx, |worktrees_store, cx| {
 1397                            worktrees_store.schedule_serialization(
 1398                                cx,
 1399                                |new_trusted_worktrees, cx| {
 1400                                    let timeout =
 1401                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1402                                    let db = WorkspaceDb::global(cx);
 1403                                    cx.background_spawn(async move {
 1404                                        timeout.await;
 1405                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1406                                            .await
 1407                                            .log_err();
 1408                                    })
 1409                                },
 1410                            )
 1411                        });
 1412                    }
 1413                }
 1414            })
 1415            .detach();
 1416
 1417            cx.observe_global::<SettingsStore>(|_, cx| {
 1418                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1419                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1420                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1421                            trusted_worktrees.auto_trust_all(cx);
 1422                        })
 1423                    }
 1424                }
 1425            })
 1426            .detach();
 1427        }
 1428
 1429        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1430            match event {
 1431                project::Event::RemoteIdChanged(_) => {
 1432                    this.update_window_title(window, cx);
 1433                }
 1434
 1435                project::Event::CollaboratorLeft(peer_id) => {
 1436                    this.collaborator_left(*peer_id, window, cx);
 1437                }
 1438
 1439                &project::Event::WorktreeRemoved(_) => {
 1440                    this.update_window_title(window, cx);
 1441                    this.serialize_workspace(window, cx);
 1442                    this.update_history(cx);
 1443                }
 1444
 1445                &project::Event::WorktreeAdded(id) => {
 1446                    this.update_window_title(window, cx);
 1447                    if this
 1448                        .project()
 1449                        .read(cx)
 1450                        .worktree_for_id(id, cx)
 1451                        .is_some_and(|wt| wt.read(cx).is_visible())
 1452                    {
 1453                        this.serialize_workspace(window, cx);
 1454                        this.update_history(cx);
 1455                    }
 1456                }
 1457                project::Event::WorktreeUpdatedEntries(..) => {
 1458                    this.update_window_title(window, cx);
 1459                    this.serialize_workspace(window, cx);
 1460                }
 1461
 1462                project::Event::DisconnectedFromHost => {
 1463                    this.update_window_edited(window, cx);
 1464                    let leaders_to_unfollow =
 1465                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1466                    for leader_id in leaders_to_unfollow {
 1467                        this.unfollow(leader_id, window, cx);
 1468                    }
 1469                }
 1470
 1471                project::Event::DisconnectedFromRemote {
 1472                    server_not_running: _,
 1473                } => {
 1474                    this.update_window_edited(window, cx);
 1475                }
 1476
 1477                project::Event::Closed => {
 1478                    window.remove_window();
 1479                }
 1480
 1481                project::Event::DeletedEntry(_, entry_id) => {
 1482                    for pane in this.panes.iter() {
 1483                        pane.update(cx, |pane, cx| {
 1484                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1485                        });
 1486                    }
 1487                }
 1488
 1489                project::Event::Toast {
 1490                    notification_id,
 1491                    message,
 1492                    link,
 1493                } => this.show_notification(
 1494                    NotificationId::named(notification_id.clone()),
 1495                    cx,
 1496                    |cx| {
 1497                        let mut notification = MessageNotification::new(message.clone(), cx);
 1498                        if let Some(link) = link {
 1499                            notification = notification
 1500                                .more_info_message(link.label)
 1501                                .more_info_url(link.url);
 1502                        }
 1503
 1504                        cx.new(|_| notification)
 1505                    },
 1506                ),
 1507
 1508                project::Event::HideToast { notification_id } => {
 1509                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1510                }
 1511
 1512                project::Event::LanguageServerPrompt(request) => {
 1513                    struct LanguageServerPrompt;
 1514
 1515                    this.show_notification(
 1516                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1517                        cx,
 1518                        |cx| {
 1519                            cx.new(|cx| {
 1520                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1521                            })
 1522                        },
 1523                    );
 1524                }
 1525
 1526                project::Event::AgentLocationChanged => {
 1527                    this.handle_agent_location_changed(window, cx)
 1528                }
 1529
 1530                _ => {}
 1531            }
 1532            cx.notify()
 1533        })
 1534        .detach();
 1535
 1536        cx.subscribe_in(
 1537            &project.read(cx).breakpoint_store(),
 1538            window,
 1539            |workspace, _, event, window, cx| match event {
 1540                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1541                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1542                    workspace.serialize_workspace(window, cx);
 1543                }
 1544                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1545            },
 1546        )
 1547        .detach();
 1548        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1549            cx.subscribe_in(
 1550                &toolchain_store,
 1551                window,
 1552                |workspace, _, event, window, cx| match event {
 1553                    ToolchainStoreEvent::CustomToolchainsModified => {
 1554                        workspace.serialize_workspace(window, cx);
 1555                    }
 1556                    _ => {}
 1557                },
 1558            )
 1559            .detach();
 1560        }
 1561
 1562        cx.on_focus_lost(window, |this, window, cx| {
 1563            let focus_handle = this.focus_handle(cx);
 1564            window.focus(&focus_handle, cx);
 1565        })
 1566        .detach();
 1567
 1568        let weak_handle = cx.entity().downgrade();
 1569        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1570
 1571        let center_pane = cx.new(|cx| {
 1572            let mut center_pane = Pane::new(
 1573                weak_handle.clone(),
 1574                project.clone(),
 1575                pane_history_timestamp.clone(),
 1576                None,
 1577                NewFile.boxed_clone(),
 1578                true,
 1579                window,
 1580                cx,
 1581            );
 1582            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1583            center_pane.set_should_display_welcome_page(true);
 1584            center_pane
 1585        });
 1586        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1587            .detach();
 1588
 1589        window.focus(&center_pane.focus_handle(cx), cx);
 1590
 1591        cx.emit(Event::PaneAdded(center_pane.clone()));
 1592
 1593        let any_window_handle = window.window_handle();
 1594        app_state.workspace_store.update(cx, |store, _| {
 1595            store
 1596                .workspaces
 1597                .insert((any_window_handle, weak_handle.clone()));
 1598        });
 1599
 1600        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1601        let mut connection_status = app_state.client.status();
 1602        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1603            current_user.next().await;
 1604            connection_status.next().await;
 1605            let mut stream =
 1606                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1607
 1608            while stream.recv().await.is_some() {
 1609                this.update(cx, |_, cx| cx.notify())?;
 1610            }
 1611            anyhow::Ok(())
 1612        });
 1613
 1614        // All leader updates are enqueued and then processed in a single task, so
 1615        // that each asynchronous operation can be run in order.
 1616        let (leader_updates_tx, mut leader_updates_rx) =
 1617            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1618        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1619            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1620                Self::process_leader_update(&this, leader_id, update, cx)
 1621                    .await
 1622                    .log_err();
 1623            }
 1624
 1625            Ok(())
 1626        });
 1627
 1628        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1629        let modal_layer = cx.new(|_| ModalLayer::new());
 1630        let toast_layer = cx.new(|_| ToastLayer::new());
 1631        cx.subscribe(
 1632            &modal_layer,
 1633            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1634                cx.emit(Event::ModalOpened);
 1635            },
 1636        )
 1637        .detach();
 1638
 1639        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1640        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1641        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1642        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1643        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1644        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1645        let multi_workspace = window
 1646            .root::<MultiWorkspace>()
 1647            .flatten()
 1648            .map(|mw| mw.downgrade());
 1649        let status_bar = cx.new(|cx| {
 1650            let mut status_bar =
 1651                StatusBar::new(&center_pane.clone(), multi_workspace.clone(), window, cx);
 1652            status_bar.add_left_item(left_dock_buttons, window, cx);
 1653            status_bar.add_right_item(right_dock_buttons, window, cx);
 1654            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1655            status_bar
 1656        });
 1657
 1658        let session_id = app_state.session.read(cx).id().to_owned();
 1659
 1660        let mut active_call = None;
 1661        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1662            let subscriptions =
 1663                vec![
 1664                    call.0
 1665                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1666                ];
 1667            active_call = Some((call, subscriptions));
 1668        }
 1669
 1670        let (serializable_items_tx, serializable_items_rx) =
 1671            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1672        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1673            Self::serialize_items(&this, serializable_items_rx, cx).await
 1674        });
 1675
 1676        let subscriptions = vec![
 1677            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1678            cx.observe_window_bounds(window, move |this, window, cx| {
 1679                if this.bounds_save_task_queued.is_some() {
 1680                    return;
 1681                }
 1682                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1683                    cx.background_executor()
 1684                        .timer(Duration::from_millis(100))
 1685                        .await;
 1686                    this.update_in(cx, |this, window, cx| {
 1687                        this.save_window_bounds(window, cx).detach();
 1688                        this.bounds_save_task_queued.take();
 1689                    })
 1690                    .ok();
 1691                }));
 1692                cx.notify();
 1693            }),
 1694            cx.observe_window_appearance(window, |_, window, cx| {
 1695                let window_appearance = window.appearance();
 1696
 1697                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1698
 1699                theme_settings::reload_theme(cx);
 1700                theme_settings::reload_icon_theme(cx);
 1701            }),
 1702            cx.on_release({
 1703                let weak_handle = weak_handle.clone();
 1704                move |this, cx| {
 1705                    this.app_state.workspace_store.update(cx, move |store, _| {
 1706                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1707                    })
 1708                }
 1709            }),
 1710        ];
 1711
 1712        cx.defer_in(window, move |this, window, cx| {
 1713            this.update_window_title(window, cx);
 1714            this.show_initial_notifications(cx);
 1715        });
 1716
 1717        let mut center = PaneGroup::new(center_pane.clone());
 1718        center.set_is_center(true);
 1719        center.mark_positions(cx);
 1720
 1721        Workspace {
 1722            weak_self: weak_handle.clone(),
 1723            zoomed: None,
 1724            zoomed_position: None,
 1725            previous_dock_drag_coordinates: None,
 1726            center,
 1727            panes: vec![center_pane.clone()],
 1728            panes_by_item: Default::default(),
 1729            active_pane: center_pane.clone(),
 1730            last_active_center_pane: Some(center_pane.downgrade()),
 1731            last_active_view_id: None,
 1732            status_bar,
 1733            modal_layer,
 1734            toast_layer,
 1735            titlebar_item: None,
 1736            active_worktree_override: None,
 1737            notifications: Notifications::default(),
 1738            suppressed_notifications: HashSet::default(),
 1739            left_dock,
 1740            bottom_dock,
 1741            right_dock,
 1742            _panels_task: None,
 1743            project: project.clone(),
 1744            follower_states: Default::default(),
 1745            last_leaders_by_pane: Default::default(),
 1746            dispatching_keystrokes: Default::default(),
 1747            window_edited: false,
 1748            last_window_title: None,
 1749            dirty_items: Default::default(),
 1750            active_call,
 1751            database_id: workspace_id,
 1752            app_state,
 1753            _observe_current_user,
 1754            _apply_leader_updates,
 1755            _schedule_serialize_workspace: None,
 1756            _serialize_workspace_task: None,
 1757            _schedule_serialize_ssh_paths: None,
 1758            leader_updates_tx,
 1759            _subscriptions: subscriptions,
 1760            pane_history_timestamp,
 1761            workspace_actions: Default::default(),
 1762            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1763            bounds: Default::default(),
 1764            centered_layout: false,
 1765            bounds_save_task_queued: None,
 1766            on_prompt_for_new_path: None,
 1767            on_prompt_for_open_path: None,
 1768            terminal_provider: None,
 1769            debugger_provider: None,
 1770            serializable_items_tx,
 1771            _items_serializer,
 1772            session_id: Some(session_id),
 1773
 1774            scheduled_tasks: Vec::new(),
 1775            last_open_dock_positions: Vec::new(),
 1776            removing: false,
 1777            sidebar_focus_handle: None,
 1778            multi_workspace,
 1779        }
 1780    }
 1781
 1782    pub fn new_local(
 1783        abs_paths: Vec<PathBuf>,
 1784        app_state: Arc<AppState>,
 1785        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1786        env: Option<HashMap<String, String>>,
 1787        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1788        open_mode: OpenMode,
 1789        cx: &mut App,
 1790    ) -> Task<anyhow::Result<OpenResult>> {
 1791        let project_handle = Project::local(
 1792            app_state.client.clone(),
 1793            app_state.node_runtime.clone(),
 1794            app_state.user_store.clone(),
 1795            app_state.languages.clone(),
 1796            app_state.fs.clone(),
 1797            env,
 1798            Default::default(),
 1799            cx,
 1800        );
 1801
 1802        let db = WorkspaceDb::global(cx);
 1803        let kvp = db::kvp::KeyValueStore::global(cx);
 1804        cx.spawn(async move |cx| {
 1805            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1806            for path in abs_paths.into_iter() {
 1807                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1808                    paths_to_open.push(canonical)
 1809                } else {
 1810                    paths_to_open.push(path)
 1811                }
 1812            }
 1813
 1814            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1815
 1816            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1817                paths_to_open = paths.ordered_paths().cloned().collect();
 1818                if !paths.is_lexicographically_ordered() {
 1819                    project_handle.update(cx, |project, cx| {
 1820                        project.set_worktrees_reordered(true, cx);
 1821                    });
 1822                }
 1823            }
 1824
 1825            // Get project paths for all of the abs_paths
 1826            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1827                Vec::with_capacity(paths_to_open.len());
 1828
 1829            for path in paths_to_open.into_iter() {
 1830                if let Some((_, project_entry)) = cx
 1831                    .update(|cx| {
 1832                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1833                    })
 1834                    .await
 1835                    .log_err()
 1836                {
 1837                    project_paths.push((path, Some(project_entry)));
 1838                } else {
 1839                    project_paths.push((path, None));
 1840                }
 1841            }
 1842
 1843            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1844                serialized_workspace.id
 1845            } else {
 1846                db.next_id().await.unwrap_or_else(|_| Default::default())
 1847            };
 1848
 1849            let toolchains = db.toolchains(workspace_id).await?;
 1850
 1851            for (toolchain, worktree_path, path) in toolchains {
 1852                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1853                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1854                    this.find_worktree(&worktree_path, cx)
 1855                        .and_then(|(worktree, rel_path)| {
 1856                            if rel_path.is_empty() {
 1857                                Some(worktree.read(cx).id())
 1858                            } else {
 1859                                None
 1860                            }
 1861                        })
 1862                }) else {
 1863                    // We did not find a worktree with a given path, but that's whatever.
 1864                    continue;
 1865                };
 1866                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1867                    continue;
 1868                }
 1869
 1870                project_handle
 1871                    .update(cx, |this, cx| {
 1872                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1873                    })
 1874                    .await;
 1875            }
 1876            if let Some(workspace) = serialized_workspace.as_ref() {
 1877                project_handle.update(cx, |this, cx| {
 1878                    for (scope, toolchains) in &workspace.user_toolchains {
 1879                        for toolchain in toolchains {
 1880                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1881                        }
 1882                    }
 1883                });
 1884            }
 1885
 1886            let window_to_replace = match open_mode {
 1887                OpenMode::NewWindow => None,
 1888                _ => requesting_window,
 1889            };
 1890
 1891            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1892                if let Some(window) = window_to_replace {
 1893                    let centered_layout = serialized_workspace
 1894                        .as_ref()
 1895                        .map(|w| w.centered_layout)
 1896                        .unwrap_or(false);
 1897
 1898                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1899                        let workspace = cx.new(|cx| {
 1900                            let mut workspace = Workspace::new(
 1901                                Some(workspace_id),
 1902                                project_handle.clone(),
 1903                                app_state.clone(),
 1904                                window,
 1905                                cx,
 1906                            );
 1907
 1908                            workspace.centered_layout = centered_layout;
 1909
 1910                            // Call init callback to add items before window renders
 1911                            if let Some(init) = init {
 1912                                init(&mut workspace, window, cx);
 1913                            }
 1914
 1915                            workspace
 1916                        });
 1917                        match open_mode {
 1918                            OpenMode::Replace => {
 1919                                multi_workspace.replace(workspace.clone(), &*window, cx);
 1920                            }
 1921                            OpenMode::Activate => {
 1922                                multi_workspace.activate(workspace.clone(), window, cx);
 1923                            }
 1924                            OpenMode::Add => {
 1925                                multi_workspace.add(workspace.clone(), &*window, cx);
 1926                            }
 1927                            OpenMode::NewWindow => {
 1928                                unreachable!()
 1929                            }
 1930                        }
 1931                        workspace
 1932                    })?;
 1933                    (window, workspace)
 1934                } else {
 1935                    let window_bounds_override = window_bounds_env_override();
 1936
 1937                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1938                        (Some(WindowBounds::Windowed(bounds)), None)
 1939                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1940                        && let Some(display) = workspace.display
 1941                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1942                    {
 1943                        // Reopening an existing workspace - restore its saved bounds
 1944                        (Some(bounds.0), Some(display))
 1945                    } else if let Some((display, bounds)) =
 1946                        persistence::read_default_window_bounds(&kvp)
 1947                    {
 1948                        // New or empty workspace - use the last known window bounds
 1949                        (Some(bounds), Some(display))
 1950                    } else {
 1951                        // New window - let GPUI's default_bounds() handle cascading
 1952                        (None, None)
 1953                    };
 1954
 1955                    // Use the serialized workspace to construct the new window
 1956                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1957                    options.window_bounds = window_bounds;
 1958                    let centered_layout = serialized_workspace
 1959                        .as_ref()
 1960                        .map(|w| w.centered_layout)
 1961                        .unwrap_or(false);
 1962                    let window = cx.open_window(options, {
 1963                        let app_state = app_state.clone();
 1964                        let project_handle = project_handle.clone();
 1965                        move |window, cx| {
 1966                            let workspace = cx.new(|cx| {
 1967                                let mut workspace = Workspace::new(
 1968                                    Some(workspace_id),
 1969                                    project_handle,
 1970                                    app_state,
 1971                                    window,
 1972                                    cx,
 1973                                );
 1974                                workspace.centered_layout = centered_layout;
 1975
 1976                                // Call init callback to add items before window renders
 1977                                if let Some(init) = init {
 1978                                    init(&mut workspace, window, cx);
 1979                                }
 1980
 1981                                workspace
 1982                            });
 1983                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 1984                        }
 1985                    })?;
 1986                    let workspace =
 1987                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1988                            multi_workspace.workspace().clone()
 1989                        })?;
 1990                    (window, workspace)
 1991                };
 1992
 1993            notify_if_database_failed(window, cx);
 1994            // Check if this is an empty workspace (no paths to open)
 1995            // An empty workspace is one where project_paths is empty
 1996            let is_empty_workspace = project_paths.is_empty();
 1997            // Check if serialized workspace has paths before it's moved
 1998            let serialized_workspace_has_paths = serialized_workspace
 1999                .as_ref()
 2000                .map(|ws| !ws.paths.is_empty())
 2001                .unwrap_or(false);
 2002
 2003            let opened_items = window
 2004                .update(cx, |_, window, cx| {
 2005                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 2006                        open_items(serialized_workspace, project_paths, window, cx)
 2007                    })
 2008                })?
 2009                .await
 2010                .unwrap_or_default();
 2011
 2012            // Restore default dock state for empty workspaces
 2013            // Only restore if:
 2014            // 1. This is an empty workspace (no paths), AND
 2015            // 2. The serialized workspace either doesn't exist or has no paths
 2016            if is_empty_workspace && !serialized_workspace_has_paths {
 2017                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 2018                    window
 2019                        .update(cx, |_, window, cx| {
 2020                            workspace.update(cx, |workspace, cx| {
 2021                                for (dock, serialized_dock) in [
 2022                                    (&workspace.right_dock, &default_docks.right),
 2023                                    (&workspace.left_dock, &default_docks.left),
 2024                                    (&workspace.bottom_dock, &default_docks.bottom),
 2025                                ] {
 2026                                    dock.update(cx, |dock, cx| {
 2027                                        dock.serialized_dock = Some(serialized_dock.clone());
 2028                                        dock.restore_state(window, cx);
 2029                                    });
 2030                                }
 2031                                cx.notify();
 2032                            });
 2033                        })
 2034                        .log_err();
 2035                }
 2036            }
 2037
 2038            window
 2039                .update(cx, |_, _window, cx| {
 2040                    workspace.update(cx, |this: &mut Workspace, cx| {
 2041                        this.update_history(cx);
 2042                    });
 2043                })
 2044                .log_err();
 2045            Ok(OpenResult {
 2046                window,
 2047                workspace,
 2048                opened_items,
 2049            })
 2050        })
 2051    }
 2052
 2053    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2054        self.weak_self.clone()
 2055    }
 2056
 2057    pub fn left_dock(&self) -> &Entity<Dock> {
 2058        &self.left_dock
 2059    }
 2060
 2061    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2062        &self.bottom_dock
 2063    }
 2064
 2065    pub fn set_bottom_dock_layout(
 2066        &mut self,
 2067        layout: BottomDockLayout,
 2068        window: &mut Window,
 2069        cx: &mut Context<Self>,
 2070    ) {
 2071        let fs = self.project().read(cx).fs();
 2072        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2073            content.workspace.bottom_dock_layout = Some(layout);
 2074        });
 2075
 2076        cx.notify();
 2077        self.serialize_workspace(window, cx);
 2078    }
 2079
 2080    pub fn right_dock(&self) -> &Entity<Dock> {
 2081        &self.right_dock
 2082    }
 2083
 2084    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2085        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2086    }
 2087
 2088    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2089        let left_dock = self.left_dock.read(cx);
 2090        let left_visible = left_dock.is_open();
 2091        let left_active_panel = left_dock
 2092            .active_panel()
 2093            .map(|panel| panel.persistent_name().to_string());
 2094        // `zoomed_position` is kept in sync with individual panel zoom state
 2095        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2096        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2097
 2098        let right_dock = self.right_dock.read(cx);
 2099        let right_visible = right_dock.is_open();
 2100        let right_active_panel = right_dock
 2101            .active_panel()
 2102            .map(|panel| panel.persistent_name().to_string());
 2103        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2104
 2105        let bottom_dock = self.bottom_dock.read(cx);
 2106        let bottom_visible = bottom_dock.is_open();
 2107        let bottom_active_panel = bottom_dock
 2108            .active_panel()
 2109            .map(|panel| panel.persistent_name().to_string());
 2110        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2111
 2112        DockStructure {
 2113            left: DockData {
 2114                visible: left_visible,
 2115                active_panel: left_active_panel,
 2116                zoom: left_dock_zoom,
 2117            },
 2118            right: DockData {
 2119                visible: right_visible,
 2120                active_panel: right_active_panel,
 2121                zoom: right_dock_zoom,
 2122            },
 2123            bottom: DockData {
 2124                visible: bottom_visible,
 2125                active_panel: bottom_active_panel,
 2126                zoom: bottom_dock_zoom,
 2127            },
 2128        }
 2129    }
 2130
 2131    pub fn set_dock_structure(
 2132        &self,
 2133        docks: DockStructure,
 2134        window: &mut Window,
 2135        cx: &mut Context<Self>,
 2136    ) {
 2137        for (dock, data) in [
 2138            (&self.left_dock, docks.left),
 2139            (&self.bottom_dock, docks.bottom),
 2140            (&self.right_dock, docks.right),
 2141        ] {
 2142            dock.update(cx, |dock, cx| {
 2143                dock.serialized_dock = Some(data);
 2144                dock.restore_state(window, cx);
 2145            });
 2146        }
 2147    }
 2148
 2149    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2150        self.items(cx)
 2151            .filter_map(|item| {
 2152                let project_path = item.project_path(cx)?;
 2153                self.project.read(cx).absolute_path(&project_path, cx)
 2154            })
 2155            .collect()
 2156    }
 2157
 2158    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2159        match position {
 2160            DockPosition::Left => &self.left_dock,
 2161            DockPosition::Bottom => &self.bottom_dock,
 2162            DockPosition::Right => &self.right_dock,
 2163        }
 2164    }
 2165
 2166    pub fn agent_panel_position(&self, cx: &App) -> Option<DockPosition> {
 2167        self.all_docks().into_iter().find_map(|dock| {
 2168            let dock = dock.read(cx);
 2169            dock.has_agent_panel(cx).then_some(dock.position())
 2170        })
 2171    }
 2172
 2173    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2174        self.all_docks().into_iter().find_map(|dock| {
 2175            let dock = dock.read(cx);
 2176            let panel = dock.panel::<T>()?;
 2177            dock.stored_panel_size_state(&panel)
 2178        })
 2179    }
 2180
 2181    pub fn persisted_panel_size_state(
 2182        &self,
 2183        panel_key: &'static str,
 2184        cx: &App,
 2185    ) -> Option<dock::PanelSizeState> {
 2186        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2187    }
 2188
 2189    pub fn persist_panel_size_state(
 2190        &self,
 2191        panel_key: &str,
 2192        size_state: dock::PanelSizeState,
 2193        cx: &mut App,
 2194    ) {
 2195        let Some(workspace_id) = self
 2196            .database_id()
 2197            .map(|id| i64::from(id).to_string())
 2198            .or(self.session_id())
 2199        else {
 2200            return;
 2201        };
 2202
 2203        let kvp = db::kvp::KeyValueStore::global(cx);
 2204        let panel_key = panel_key.to_string();
 2205        cx.background_spawn(async move {
 2206            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2207            scope
 2208                .write(
 2209                    format!("{workspace_id}:{panel_key}"),
 2210                    serde_json::to_string(&size_state)?,
 2211                )
 2212                .await
 2213        })
 2214        .detach_and_log_err(cx);
 2215    }
 2216
 2217    pub fn set_panel_size_state<T: Panel>(
 2218        &mut self,
 2219        size_state: dock::PanelSizeState,
 2220        window: &mut Window,
 2221        cx: &mut Context<Self>,
 2222    ) -> bool {
 2223        let Some(panel) = self.panel::<T>(cx) else {
 2224            return false;
 2225        };
 2226
 2227        let dock = self.dock_at_position(panel.position(window, cx));
 2228        let did_set = dock.update(cx, |dock, cx| {
 2229            dock.set_panel_size_state(&panel, size_state, cx)
 2230        });
 2231
 2232        if did_set {
 2233            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2234        }
 2235
 2236        did_set
 2237    }
 2238
 2239    pub fn toggle_dock_panel_flexible_size(
 2240        &self,
 2241        dock: &Entity<Dock>,
 2242        panel: &dyn PanelHandle,
 2243        window: &mut Window,
 2244        cx: &mut App,
 2245    ) {
 2246        let position = dock.read(cx).position();
 2247        let current_size = self.dock_size(&dock.read(cx), window, cx);
 2248        let current_flex =
 2249            current_size.and_then(|size| self.dock_flex_for_size(position, size, window, cx));
 2250        dock.update(cx, |dock, cx| {
 2251            dock.toggle_panel_flexible_size(panel, current_size, current_flex, window, cx);
 2252        });
 2253    }
 2254
 2255    fn dock_size(&self, dock: &Dock, window: &Window, cx: &App) -> Option<Pixels> {
 2256        let panel = dock.active_panel()?;
 2257        let size_state = dock
 2258            .stored_panel_size_state(panel.as_ref())
 2259            .unwrap_or_default();
 2260        let position = dock.position();
 2261
 2262        let use_flex = panel.has_flexible_size(window, cx);
 2263
 2264        if position.axis() == Axis::Horizontal
 2265            && use_flex
 2266            && let Some(flex) = size_state.flex.or_else(|| self.default_dock_flex(position))
 2267        {
 2268            let workspace_width = self.bounds.size.width;
 2269            if workspace_width <= Pixels::ZERO {
 2270                return None;
 2271            }
 2272            let flex = flex.max(0.001);
 2273            let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2274            if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2275                // Both docks are flex items sharing the full workspace width.
 2276                let total_flex = flex + 1.0 + opposite_flex;
 2277                return Some((flex / total_flex * workspace_width).max(RESIZE_HANDLE_SIZE));
 2278            } else {
 2279                // Opposite dock is fixed-width; flex items share (W - fixed).
 2280                let opposite_fixed = opposite
 2281                    .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2282                    .unwrap_or_default();
 2283                let available = (workspace_width - opposite_fixed).max(RESIZE_HANDLE_SIZE);
 2284                return Some((flex / (flex + 1.0) * available).max(RESIZE_HANDLE_SIZE));
 2285            }
 2286        }
 2287
 2288        Some(
 2289            size_state
 2290                .size
 2291                .unwrap_or_else(|| panel.default_size(window, cx)),
 2292        )
 2293    }
 2294
 2295    pub fn dock_flex_for_size(
 2296        &self,
 2297        position: DockPosition,
 2298        size: Pixels,
 2299        window: &Window,
 2300        cx: &App,
 2301    ) -> Option<f32> {
 2302        if position.axis() != Axis::Horizontal {
 2303            return None;
 2304        }
 2305
 2306        let workspace_width = self.bounds.size.width;
 2307        if workspace_width <= Pixels::ZERO {
 2308            return None;
 2309        }
 2310
 2311        let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2312        if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2313            let size = size.clamp(px(0.), workspace_width - px(1.));
 2314            Some((size * (1.0 + opposite_flex) / (workspace_width - size)).max(0.0))
 2315        } else {
 2316            let opposite_width = opposite
 2317                .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2318                .unwrap_or_default();
 2319            let available = (workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE);
 2320            let remaining = (available - size).max(px(1.));
 2321            Some((size / remaining).max(0.0))
 2322        }
 2323    }
 2324
 2325    fn opposite_dock_panel_and_size_state(
 2326        &self,
 2327        position: DockPosition,
 2328        window: &Window,
 2329        cx: &App,
 2330    ) -> Option<(Arc<dyn PanelHandle>, PanelSizeState)> {
 2331        let opposite_position = match position {
 2332            DockPosition::Left => DockPosition::Right,
 2333            DockPosition::Right => DockPosition::Left,
 2334            DockPosition::Bottom => return None,
 2335        };
 2336
 2337        let opposite_dock = self.dock_at_position(opposite_position).read(cx);
 2338        let panel = opposite_dock.visible_panel()?;
 2339        let mut size_state = opposite_dock
 2340            .stored_panel_size_state(panel.as_ref())
 2341            .unwrap_or_default();
 2342        if size_state.flex.is_none() && panel.has_flexible_size(window, cx) {
 2343            size_state.flex = self.default_dock_flex(opposite_position);
 2344        }
 2345        Some((panel.clone(), size_state))
 2346    }
 2347
 2348    pub fn default_dock_flex(&self, position: DockPosition) -> Option<f32> {
 2349        if position.axis() != Axis::Horizontal {
 2350            return None;
 2351        }
 2352
 2353        let pane = self.last_active_center_pane.clone()?.upgrade()?;
 2354        Some(self.center.width_fraction_for_pane(&pane).unwrap_or(1.0))
 2355    }
 2356
 2357    pub fn is_edited(&self) -> bool {
 2358        self.window_edited
 2359    }
 2360
 2361    pub fn add_panel<T: Panel>(
 2362        &mut self,
 2363        panel: Entity<T>,
 2364        window: &mut Window,
 2365        cx: &mut Context<Self>,
 2366    ) {
 2367        let focus_handle = panel.panel_focus_handle(cx);
 2368        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2369            .detach();
 2370
 2371        let dock_position = panel.position(window, cx);
 2372        let dock = self.dock_at_position(dock_position);
 2373        let any_panel = panel.to_any();
 2374        let persisted_size_state =
 2375            self.persisted_panel_size_state(T::panel_key(), cx)
 2376                .or_else(|| {
 2377                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2378                        let state = dock::PanelSizeState {
 2379                            size: Some(size),
 2380                            flex: None,
 2381                        };
 2382                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2383                        state
 2384                    })
 2385                });
 2386
 2387        dock.update(cx, |dock, cx| {
 2388            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2389            if let Some(size_state) = persisted_size_state {
 2390                dock.set_panel_size_state(&panel, size_state, cx);
 2391            }
 2392            index
 2393        });
 2394
 2395        cx.emit(Event::PanelAdded(any_panel));
 2396    }
 2397
 2398    pub fn remove_panel<T: Panel>(
 2399        &mut self,
 2400        panel: &Entity<T>,
 2401        window: &mut Window,
 2402        cx: &mut Context<Self>,
 2403    ) {
 2404        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2405            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2406        }
 2407    }
 2408
 2409    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2410        &self.status_bar
 2411    }
 2412
 2413    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2414        self.sidebar_focus_handle = handle;
 2415    }
 2416
 2417    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2418        StatusBarSettings::get_global(cx).show
 2419    }
 2420
 2421    pub fn multi_workspace(&self) -> Option<&WeakEntity<MultiWorkspace>> {
 2422        self.multi_workspace.as_ref()
 2423    }
 2424
 2425    pub fn set_multi_workspace(
 2426        &mut self,
 2427        multi_workspace: WeakEntity<MultiWorkspace>,
 2428        cx: &mut App,
 2429    ) {
 2430        self.status_bar.update(cx, |status_bar, cx| {
 2431            status_bar.set_multi_workspace(multi_workspace.clone(), cx);
 2432        });
 2433        self.multi_workspace = Some(multi_workspace);
 2434    }
 2435
 2436    pub fn app_state(&self) -> &Arc<AppState> {
 2437        &self.app_state
 2438    }
 2439
 2440    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2441        self._panels_task = Some(task);
 2442    }
 2443
 2444    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2445        self._panels_task.take()
 2446    }
 2447
 2448    pub fn user_store(&self) -> &Entity<UserStore> {
 2449        &self.app_state.user_store
 2450    }
 2451
 2452    pub fn project(&self) -> &Entity<Project> {
 2453        &self.project
 2454    }
 2455
 2456    pub fn path_style(&self, cx: &App) -> PathStyle {
 2457        self.project.read(cx).path_style(cx)
 2458    }
 2459
 2460    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2461        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2462
 2463        for pane_handle in &self.panes {
 2464            let pane = pane_handle.read(cx);
 2465
 2466            for entry in pane.activation_history() {
 2467                history.insert(
 2468                    entry.entity_id,
 2469                    history
 2470                        .get(&entry.entity_id)
 2471                        .cloned()
 2472                        .unwrap_or(0)
 2473                        .max(entry.timestamp),
 2474                );
 2475            }
 2476        }
 2477
 2478        history
 2479    }
 2480
 2481    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2482        let mut recent_item: Option<Entity<T>> = None;
 2483        let mut recent_timestamp = 0;
 2484        for pane_handle in &self.panes {
 2485            let pane = pane_handle.read(cx);
 2486            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2487                pane.items().map(|item| (item.item_id(), item)).collect();
 2488            for entry in pane.activation_history() {
 2489                if entry.timestamp > recent_timestamp
 2490                    && let Some(&item) = item_map.get(&entry.entity_id)
 2491                    && let Some(typed_item) = item.act_as::<T>(cx)
 2492                {
 2493                    recent_timestamp = entry.timestamp;
 2494                    recent_item = Some(typed_item);
 2495                }
 2496            }
 2497        }
 2498        recent_item
 2499    }
 2500
 2501    pub fn recent_navigation_history_iter(
 2502        &self,
 2503        cx: &App,
 2504    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2505        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2506        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2507
 2508        for pane in &self.panes {
 2509            let pane = pane.read(cx);
 2510
 2511            pane.nav_history()
 2512                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2513                    if let Some(fs_path) = &fs_path {
 2514                        abs_paths_opened
 2515                            .entry(fs_path.clone())
 2516                            .or_default()
 2517                            .insert(project_path.clone());
 2518                    }
 2519                    let timestamp = entry.timestamp;
 2520                    match history.entry(project_path) {
 2521                        hash_map::Entry::Occupied(mut entry) => {
 2522                            let (_, old_timestamp) = entry.get();
 2523                            if &timestamp > old_timestamp {
 2524                                entry.insert((fs_path, timestamp));
 2525                            }
 2526                        }
 2527                        hash_map::Entry::Vacant(entry) => {
 2528                            entry.insert((fs_path, timestamp));
 2529                        }
 2530                    }
 2531                });
 2532
 2533            if let Some(item) = pane.active_item()
 2534                && let Some(project_path) = item.project_path(cx)
 2535            {
 2536                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2537
 2538                if let Some(fs_path) = &fs_path {
 2539                    abs_paths_opened
 2540                        .entry(fs_path.clone())
 2541                        .or_default()
 2542                        .insert(project_path.clone());
 2543                }
 2544
 2545                history.insert(project_path, (fs_path, std::usize::MAX));
 2546            }
 2547        }
 2548
 2549        history
 2550            .into_iter()
 2551            .sorted_by_key(|(_, (_, order))| *order)
 2552            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2553            .rev()
 2554            .filter(move |(history_path, abs_path)| {
 2555                let latest_project_path_opened = abs_path
 2556                    .as_ref()
 2557                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2558                    .and_then(|project_paths| {
 2559                        project_paths
 2560                            .iter()
 2561                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2562                    });
 2563
 2564                latest_project_path_opened.is_none_or(|path| path == history_path)
 2565            })
 2566    }
 2567
 2568    pub fn recent_navigation_history(
 2569        &self,
 2570        limit: Option<usize>,
 2571        cx: &App,
 2572    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2573        self.recent_navigation_history_iter(cx)
 2574            .take(limit.unwrap_or(usize::MAX))
 2575            .collect()
 2576    }
 2577
 2578    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2579        for pane in &self.panes {
 2580            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2581        }
 2582    }
 2583
 2584    fn navigate_history(
 2585        &mut self,
 2586        pane: WeakEntity<Pane>,
 2587        mode: NavigationMode,
 2588        window: &mut Window,
 2589        cx: &mut Context<Workspace>,
 2590    ) -> Task<Result<()>> {
 2591        self.navigate_history_impl(
 2592            pane,
 2593            mode,
 2594            window,
 2595            &mut |history, cx| history.pop(mode, cx),
 2596            cx,
 2597        )
 2598    }
 2599
 2600    fn navigate_tag_history(
 2601        &mut self,
 2602        pane: WeakEntity<Pane>,
 2603        mode: TagNavigationMode,
 2604        window: &mut Window,
 2605        cx: &mut Context<Workspace>,
 2606    ) -> Task<Result<()>> {
 2607        self.navigate_history_impl(
 2608            pane,
 2609            NavigationMode::Normal,
 2610            window,
 2611            &mut |history, _cx| history.pop_tag(mode),
 2612            cx,
 2613        )
 2614    }
 2615
 2616    fn navigate_history_impl(
 2617        &mut self,
 2618        pane: WeakEntity<Pane>,
 2619        mode: NavigationMode,
 2620        window: &mut Window,
 2621        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2622        cx: &mut Context<Workspace>,
 2623    ) -> Task<Result<()>> {
 2624        let to_load = if let Some(pane) = pane.upgrade() {
 2625            pane.update(cx, |pane, cx| {
 2626                window.focus(&pane.focus_handle(cx), cx);
 2627                loop {
 2628                    // Retrieve the weak item handle from the history.
 2629                    let entry = cb(pane.nav_history_mut(), cx)?;
 2630
 2631                    // If the item is still present in this pane, then activate it.
 2632                    if let Some(index) = entry
 2633                        .item
 2634                        .upgrade()
 2635                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2636                    {
 2637                        let prev_active_item_index = pane.active_item_index();
 2638                        pane.nav_history_mut().set_mode(mode);
 2639                        pane.activate_item(index, true, true, window, cx);
 2640                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2641
 2642                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2643                        if let Some(data) = entry.data {
 2644                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2645                        }
 2646
 2647                        if navigated {
 2648                            break None;
 2649                        }
 2650                    } else {
 2651                        // If the item is no longer present in this pane, then retrieve its
 2652                        // path info in order to reopen it.
 2653                        break pane
 2654                            .nav_history()
 2655                            .path_for_item(entry.item.id())
 2656                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2657                    }
 2658                }
 2659            })
 2660        } else {
 2661            None
 2662        };
 2663
 2664        if let Some((project_path, abs_path, entry)) = to_load {
 2665            // If the item was no longer present, then load it again from its previous path, first try the local path
 2666            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2667
 2668            cx.spawn_in(window, async move  |workspace, cx| {
 2669                let open_by_project_path = open_by_project_path.await;
 2670                let mut navigated = false;
 2671                match open_by_project_path
 2672                    .with_context(|| format!("Navigating to {project_path:?}"))
 2673                {
 2674                    Ok((project_entry_id, build_item)) => {
 2675                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2676                            pane.nav_history_mut().set_mode(mode);
 2677                            pane.active_item().map(|p| p.item_id())
 2678                        })?;
 2679
 2680                        pane.update_in(cx, |pane, window, cx| {
 2681                            let item = pane.open_item(
 2682                                project_entry_id,
 2683                                project_path,
 2684                                true,
 2685                                entry.is_preview,
 2686                                true,
 2687                                None,
 2688                                window, cx,
 2689                                build_item,
 2690                            );
 2691                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2692                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2693                            if let Some(data) = entry.data {
 2694                                navigated |= item.navigate(data, window, cx);
 2695                            }
 2696                        })?;
 2697                    }
 2698                    Err(open_by_project_path_e) => {
 2699                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2700                        // and its worktree is now dropped
 2701                        if let Some(abs_path) = abs_path {
 2702                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2703                                pane.nav_history_mut().set_mode(mode);
 2704                                pane.active_item().map(|p| p.item_id())
 2705                            })?;
 2706                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2707                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2708                            })?;
 2709                            match open_by_abs_path
 2710                                .await
 2711                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2712                            {
 2713                                Ok(item) => {
 2714                                    pane.update_in(cx, |pane, window, cx| {
 2715                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2716                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2717                                        if let Some(data) = entry.data {
 2718                                            navigated |= item.navigate(data, window, cx);
 2719                                        }
 2720                                    })?;
 2721                                }
 2722                                Err(open_by_abs_path_e) => {
 2723                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2724                                }
 2725                            }
 2726                        }
 2727                    }
 2728                }
 2729
 2730                if !navigated {
 2731                    workspace
 2732                        .update_in(cx, |workspace, window, cx| {
 2733                            Self::navigate_history(workspace, pane, mode, window, cx)
 2734                        })?
 2735                        .await?;
 2736                }
 2737
 2738                Ok(())
 2739            })
 2740        } else {
 2741            Task::ready(Ok(()))
 2742        }
 2743    }
 2744
 2745    pub fn go_back(
 2746        &mut self,
 2747        pane: WeakEntity<Pane>,
 2748        window: &mut Window,
 2749        cx: &mut Context<Workspace>,
 2750    ) -> Task<Result<()>> {
 2751        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2752    }
 2753
 2754    pub fn go_forward(
 2755        &mut self,
 2756        pane: WeakEntity<Pane>,
 2757        window: &mut Window,
 2758        cx: &mut Context<Workspace>,
 2759    ) -> Task<Result<()>> {
 2760        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2761    }
 2762
 2763    pub fn reopen_closed_item(
 2764        &mut self,
 2765        window: &mut Window,
 2766        cx: &mut Context<Workspace>,
 2767    ) -> Task<Result<()>> {
 2768        self.navigate_history(
 2769            self.active_pane().downgrade(),
 2770            NavigationMode::ReopeningClosedItem,
 2771            window,
 2772            cx,
 2773        )
 2774    }
 2775
 2776    pub fn client(&self) -> &Arc<Client> {
 2777        &self.app_state.client
 2778    }
 2779
 2780    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2781        self.titlebar_item = Some(item);
 2782        cx.notify();
 2783    }
 2784
 2785    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2786        self.on_prompt_for_new_path = Some(prompt)
 2787    }
 2788
 2789    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2790        self.on_prompt_for_open_path = Some(prompt)
 2791    }
 2792
 2793    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2794        self.terminal_provider = Some(Box::new(provider));
 2795    }
 2796
 2797    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2798        self.debugger_provider = Some(Arc::new(provider));
 2799    }
 2800
 2801    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2802        self.debugger_provider.clone()
 2803    }
 2804
 2805    pub fn prompt_for_open_path(
 2806        &mut self,
 2807        path_prompt_options: PathPromptOptions,
 2808        lister: DirectoryLister,
 2809        window: &mut Window,
 2810        cx: &mut Context<Self>,
 2811    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2812        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2813            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2814            let rx = prompt(self, lister, window, cx);
 2815            self.on_prompt_for_open_path = Some(prompt);
 2816            rx
 2817        } else {
 2818            let (tx, rx) = oneshot::channel();
 2819            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2820
 2821            cx.spawn_in(window, async move |workspace, cx| {
 2822                let Ok(result) = abs_path.await else {
 2823                    return Ok(());
 2824                };
 2825
 2826                match result {
 2827                    Ok(result) => {
 2828                        tx.send(result).ok();
 2829                    }
 2830                    Err(err) => {
 2831                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2832                            workspace.show_portal_error(err.to_string(), cx);
 2833                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2834                            let rx = prompt(workspace, lister, window, cx);
 2835                            workspace.on_prompt_for_open_path = Some(prompt);
 2836                            rx
 2837                        })?;
 2838                        if let Ok(path) = rx.await {
 2839                            tx.send(path).ok();
 2840                        }
 2841                    }
 2842                };
 2843                anyhow::Ok(())
 2844            })
 2845            .detach();
 2846
 2847            rx
 2848        }
 2849    }
 2850
 2851    pub fn prompt_for_new_path(
 2852        &mut self,
 2853        lister: DirectoryLister,
 2854        suggested_name: Option<String>,
 2855        window: &mut Window,
 2856        cx: &mut Context<Self>,
 2857    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2858        if self.project.read(cx).is_via_collab()
 2859            || self.project.read(cx).is_via_remote_server()
 2860            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2861        {
 2862            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2863            let rx = prompt(self, lister, suggested_name, window, cx);
 2864            self.on_prompt_for_new_path = Some(prompt);
 2865            return rx;
 2866        }
 2867
 2868        let (tx, rx) = oneshot::channel();
 2869        cx.spawn_in(window, async move |workspace, cx| {
 2870            let abs_path = workspace.update(cx, |workspace, cx| {
 2871                let relative_to = workspace
 2872                    .most_recent_active_path(cx)
 2873                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2874                    .or_else(|| {
 2875                        let project = workspace.project.read(cx);
 2876                        project.visible_worktrees(cx).find_map(|worktree| {
 2877                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2878                        })
 2879                    })
 2880                    .or_else(std::env::home_dir)
 2881                    .unwrap_or_else(|| PathBuf::from(""));
 2882                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2883            })?;
 2884            let abs_path = match abs_path.await? {
 2885                Ok(path) => path,
 2886                Err(err) => {
 2887                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2888                        workspace.show_portal_error(err.to_string(), cx);
 2889
 2890                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2891                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2892                        workspace.on_prompt_for_new_path = Some(prompt);
 2893                        rx
 2894                    })?;
 2895                    if let Ok(path) = rx.await {
 2896                        tx.send(path).ok();
 2897                    }
 2898                    return anyhow::Ok(());
 2899                }
 2900            };
 2901
 2902            tx.send(abs_path.map(|path| vec![path])).ok();
 2903            anyhow::Ok(())
 2904        })
 2905        .detach();
 2906
 2907        rx
 2908    }
 2909
 2910    pub fn titlebar_item(&self) -> Option<AnyView> {
 2911        self.titlebar_item.clone()
 2912    }
 2913
 2914    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2915    /// When set, git-related operations should use this worktree instead of deriving
 2916    /// the active worktree from the focused file.
 2917    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2918        self.active_worktree_override
 2919    }
 2920
 2921    pub fn set_active_worktree_override(
 2922        &mut self,
 2923        worktree_id: Option<WorktreeId>,
 2924        cx: &mut Context<Self>,
 2925    ) {
 2926        self.active_worktree_override = worktree_id;
 2927        cx.notify();
 2928    }
 2929
 2930    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2931        self.active_worktree_override = None;
 2932        cx.notify();
 2933    }
 2934
 2935    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2936    ///
 2937    /// If the given workspace has a local project, then it will be passed
 2938    /// to the callback. Otherwise, a new empty window will be created.
 2939    pub fn with_local_workspace<T, F>(
 2940        &mut self,
 2941        window: &mut Window,
 2942        cx: &mut Context<Self>,
 2943        callback: F,
 2944    ) -> Task<Result<T>>
 2945    where
 2946        T: 'static,
 2947        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2948    {
 2949        if self.project.read(cx).is_local() {
 2950            Task::ready(Ok(callback(self, window, cx)))
 2951        } else {
 2952            let env = self.project.read(cx).cli_environment(cx);
 2953            let task = Self::new_local(
 2954                Vec::new(),
 2955                self.app_state.clone(),
 2956                None,
 2957                env,
 2958                None,
 2959                OpenMode::Activate,
 2960                cx,
 2961            );
 2962            cx.spawn_in(window, async move |_vh, cx| {
 2963                let OpenResult {
 2964                    window: multi_workspace_window,
 2965                    ..
 2966                } = task.await?;
 2967                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2968                    let workspace = multi_workspace.workspace().clone();
 2969                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2970                })
 2971            })
 2972        }
 2973    }
 2974
 2975    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2976    ///
 2977    /// If the given workspace has a local project, then it will be passed
 2978    /// to the callback. Otherwise, a new empty window will be created.
 2979    pub fn with_local_or_wsl_workspace<T, F>(
 2980        &mut self,
 2981        window: &mut Window,
 2982        cx: &mut Context<Self>,
 2983        callback: F,
 2984    ) -> Task<Result<T>>
 2985    where
 2986        T: 'static,
 2987        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2988    {
 2989        let project = self.project.read(cx);
 2990        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2991            Task::ready(Ok(callback(self, window, cx)))
 2992        } else {
 2993            let env = self.project.read(cx).cli_environment(cx);
 2994            let task = Self::new_local(
 2995                Vec::new(),
 2996                self.app_state.clone(),
 2997                None,
 2998                env,
 2999                None,
 3000                OpenMode::Activate,
 3001                cx,
 3002            );
 3003            cx.spawn_in(window, async move |_vh, cx| {
 3004                let OpenResult {
 3005                    window: multi_workspace_window,
 3006                    ..
 3007                } = task.await?;
 3008                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3009                    let workspace = multi_workspace.workspace().clone();
 3010                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3011                })
 3012            })
 3013        }
 3014    }
 3015
 3016    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3017        self.project.read(cx).worktrees(cx)
 3018    }
 3019
 3020    pub fn visible_worktrees<'a>(
 3021        &self,
 3022        cx: &'a App,
 3023    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3024        self.project.read(cx).visible_worktrees(cx)
 3025    }
 3026
 3027    #[cfg(any(test, feature = "test-support"))]
 3028    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 3029        let futures = self
 3030            .worktrees(cx)
 3031            .filter_map(|worktree| worktree.read(cx).as_local())
 3032            .map(|worktree| worktree.scan_complete())
 3033            .collect::<Vec<_>>();
 3034        async move {
 3035            for future in futures {
 3036                future.await;
 3037            }
 3038        }
 3039    }
 3040
 3041    pub fn close_global(cx: &mut App) {
 3042        cx.defer(|cx| {
 3043            cx.windows().iter().find(|window| {
 3044                window
 3045                    .update(cx, |_, window, _| {
 3046                        if window.is_window_active() {
 3047                            //This can only get called when the window's project connection has been lost
 3048                            //so we don't need to prompt the user for anything and instead just close the window
 3049                            window.remove_window();
 3050                            true
 3051                        } else {
 3052                            false
 3053                        }
 3054                    })
 3055                    .unwrap_or(false)
 3056            });
 3057        });
 3058    }
 3059
 3060    pub fn move_focused_panel_to_next_position(
 3061        &mut self,
 3062        _: &MoveFocusedPanelToNextPosition,
 3063        window: &mut Window,
 3064        cx: &mut Context<Self>,
 3065    ) {
 3066        let docks = self.all_docks();
 3067        let active_dock = docks
 3068            .into_iter()
 3069            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3070
 3071        if let Some(dock) = active_dock {
 3072            dock.update(cx, |dock, cx| {
 3073                let active_panel = dock
 3074                    .active_panel()
 3075                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 3076
 3077                if let Some(panel) = active_panel {
 3078                    panel.move_to_next_position(window, cx);
 3079                }
 3080            })
 3081        }
 3082    }
 3083
 3084    pub fn prepare_to_close(
 3085        &mut self,
 3086        close_intent: CloseIntent,
 3087        window: &mut Window,
 3088        cx: &mut Context<Self>,
 3089    ) -> Task<Result<bool>> {
 3090        let active_call = self.active_global_call();
 3091
 3092        cx.spawn_in(window, async move |this, cx| {
 3093            this.update(cx, |this, _| {
 3094                if close_intent == CloseIntent::CloseWindow {
 3095                    this.removing = true;
 3096                }
 3097            })?;
 3098
 3099            let workspace_count = cx.update(|_window, cx| {
 3100                cx.windows()
 3101                    .iter()
 3102                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3103                    .count()
 3104            })?;
 3105
 3106            #[cfg(target_os = "macos")]
 3107            let save_last_workspace = false;
 3108
 3109            // On Linux and Windows, closing the last window should restore the last workspace.
 3110            #[cfg(not(target_os = "macos"))]
 3111            let save_last_workspace = {
 3112                let remaining_workspaces = cx.update(|_window, cx| {
 3113                    cx.windows()
 3114                        .iter()
 3115                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3116                        .filter_map(|multi_workspace| {
 3117                            multi_workspace
 3118                                .update(cx, |multi_workspace, _, cx| {
 3119                                    multi_workspace.workspace().read(cx).removing
 3120                                })
 3121                                .ok()
 3122                        })
 3123                        .filter(|removing| !removing)
 3124                        .count()
 3125                })?;
 3126
 3127                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3128            };
 3129
 3130            if let Some(active_call) = active_call
 3131                && workspace_count == 1
 3132                && cx
 3133                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3134                    .unwrap_or(false)
 3135            {
 3136                if close_intent == CloseIntent::CloseWindow {
 3137                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3138                    let answer = cx.update(|window, cx| {
 3139                        window.prompt(
 3140                            PromptLevel::Warning,
 3141                            "Do you want to leave the current call?",
 3142                            None,
 3143                            &["Close window and hang up", "Cancel"],
 3144                            cx,
 3145                        )
 3146                    })?;
 3147
 3148                    if answer.await.log_err() == Some(1) {
 3149                        return anyhow::Ok(false);
 3150                    } else {
 3151                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3152                            task.await.log_err();
 3153                        }
 3154                    }
 3155                }
 3156                if close_intent == CloseIntent::ReplaceWindow {
 3157                    _ = cx.update(|_window, cx| {
 3158                        let multi_workspace = cx
 3159                            .windows()
 3160                            .iter()
 3161                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3162                            .next()
 3163                            .unwrap();
 3164                        let project = multi_workspace
 3165                            .read(cx)?
 3166                            .workspace()
 3167                            .read(cx)
 3168                            .project
 3169                            .clone();
 3170                        if project.read(cx).is_shared() {
 3171                            active_call.0.unshare_project(project, cx)?;
 3172                        }
 3173                        Ok::<_, anyhow::Error>(())
 3174                    });
 3175                }
 3176            }
 3177
 3178            let save_result = this
 3179                .update_in(cx, |this, window, cx| {
 3180                    this.save_all_internal(SaveIntent::Close, window, cx)
 3181                })?
 3182                .await;
 3183
 3184            // If we're not quitting, but closing, we remove the workspace from
 3185            // the current session.
 3186            if close_intent != CloseIntent::Quit
 3187                && !save_last_workspace
 3188                && save_result.as_ref().is_ok_and(|&res| res)
 3189            {
 3190                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3191                    .await;
 3192            }
 3193
 3194            save_result
 3195        })
 3196    }
 3197
 3198    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3199        self.save_all_internal(
 3200            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3201            window,
 3202            cx,
 3203        )
 3204        .detach_and_log_err(cx);
 3205    }
 3206
 3207    fn send_keystrokes(
 3208        &mut self,
 3209        action: &SendKeystrokes,
 3210        window: &mut Window,
 3211        cx: &mut Context<Self>,
 3212    ) {
 3213        let keystrokes: Vec<Keystroke> = action
 3214            .0
 3215            .split(' ')
 3216            .flat_map(|k| Keystroke::parse(k).log_err())
 3217            .map(|k| {
 3218                cx.keyboard_mapper()
 3219                    .map_key_equivalent(k, false)
 3220                    .inner()
 3221                    .clone()
 3222            })
 3223            .collect();
 3224        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3225    }
 3226
 3227    pub fn send_keystrokes_impl(
 3228        &mut self,
 3229        keystrokes: Vec<Keystroke>,
 3230        window: &mut Window,
 3231        cx: &mut Context<Self>,
 3232    ) -> Shared<Task<()>> {
 3233        let mut state = self.dispatching_keystrokes.borrow_mut();
 3234        if !state.dispatched.insert(keystrokes.clone()) {
 3235            cx.propagate();
 3236            return state.task.clone().unwrap();
 3237        }
 3238
 3239        state.queue.extend(keystrokes);
 3240
 3241        let keystrokes = self.dispatching_keystrokes.clone();
 3242        if state.task.is_none() {
 3243            state.task = Some(
 3244                window
 3245                    .spawn(cx, async move |cx| {
 3246                        // limit to 100 keystrokes to avoid infinite recursion.
 3247                        for _ in 0..100 {
 3248                            let keystroke = {
 3249                                let mut state = keystrokes.borrow_mut();
 3250                                let Some(keystroke) = state.queue.pop_front() else {
 3251                                    state.dispatched.clear();
 3252                                    state.task.take();
 3253                                    return;
 3254                                };
 3255                                keystroke
 3256                            };
 3257                            cx.update(|window, cx| {
 3258                                let focused = window.focused(cx);
 3259                                window.dispatch_keystroke(keystroke.clone(), cx);
 3260                                if window.focused(cx) != focused {
 3261                                    // dispatch_keystroke may cause the focus to change.
 3262                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3263                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3264                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3265                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3266                                    // )
 3267                                    window.draw(cx).clear();
 3268                                }
 3269                            })
 3270                            .ok();
 3271
 3272                            // Yield between synthetic keystrokes so deferred focus and
 3273                            // other effects can settle before dispatching the next key.
 3274                            yield_now().await;
 3275                        }
 3276
 3277                        *keystrokes.borrow_mut() = Default::default();
 3278                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3279                    })
 3280                    .shared(),
 3281            );
 3282        }
 3283        state.task.clone().unwrap()
 3284    }
 3285
 3286    fn save_all_internal(
 3287        &mut self,
 3288        mut save_intent: SaveIntent,
 3289        window: &mut Window,
 3290        cx: &mut Context<Self>,
 3291    ) -> Task<Result<bool>> {
 3292        if self.project.read(cx).is_disconnected(cx) {
 3293            return Task::ready(Ok(true));
 3294        }
 3295        let dirty_items = self
 3296            .panes
 3297            .iter()
 3298            .flat_map(|pane| {
 3299                pane.read(cx).items().filter_map(|item| {
 3300                    if item.is_dirty(cx) {
 3301                        item.tab_content_text(0, cx);
 3302                        Some((pane.downgrade(), item.boxed_clone()))
 3303                    } else {
 3304                        None
 3305                    }
 3306                })
 3307            })
 3308            .collect::<Vec<_>>();
 3309
 3310        let project = self.project.clone();
 3311        cx.spawn_in(window, async move |workspace, cx| {
 3312            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3313                let (serialize_tasks, remaining_dirty_items) =
 3314                    workspace.update_in(cx, |workspace, window, cx| {
 3315                        let mut remaining_dirty_items = Vec::new();
 3316                        let mut serialize_tasks = Vec::new();
 3317                        for (pane, item) in dirty_items {
 3318                            if let Some(task) = item
 3319                                .to_serializable_item_handle(cx)
 3320                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3321                            {
 3322                                serialize_tasks.push(task);
 3323                            } else {
 3324                                remaining_dirty_items.push((pane, item));
 3325                            }
 3326                        }
 3327                        (serialize_tasks, remaining_dirty_items)
 3328                    })?;
 3329
 3330                futures::future::try_join_all(serialize_tasks).await?;
 3331
 3332                if !remaining_dirty_items.is_empty() {
 3333                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3334                }
 3335
 3336                if remaining_dirty_items.len() > 1 {
 3337                    let answer = workspace.update_in(cx, |_, window, cx| {
 3338                        let detail = Pane::file_names_for_prompt(
 3339                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3340                            cx,
 3341                        );
 3342                        window.prompt(
 3343                            PromptLevel::Warning,
 3344                            "Do you want to save all changes in the following files?",
 3345                            Some(&detail),
 3346                            &["Save all", "Discard all", "Cancel"],
 3347                            cx,
 3348                        )
 3349                    })?;
 3350                    match answer.await.log_err() {
 3351                        Some(0) => save_intent = SaveIntent::SaveAll,
 3352                        Some(1) => save_intent = SaveIntent::Skip,
 3353                        Some(2) => return Ok(false),
 3354                        _ => {}
 3355                    }
 3356                }
 3357
 3358                remaining_dirty_items
 3359            } else {
 3360                dirty_items
 3361            };
 3362
 3363            for (pane, item) in dirty_items {
 3364                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3365                    (
 3366                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3367                        item.project_entry_ids(cx),
 3368                    )
 3369                })?;
 3370                if (singleton || !project_entry_ids.is_empty())
 3371                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3372                {
 3373                    return Ok(false);
 3374                }
 3375            }
 3376            Ok(true)
 3377        })
 3378    }
 3379
 3380    pub fn open_workspace_for_paths(
 3381        &mut self,
 3382        // replace_current_window: bool,
 3383        mut open_mode: OpenMode,
 3384        paths: Vec<PathBuf>,
 3385        window: &mut Window,
 3386        cx: &mut Context<Self>,
 3387    ) -> Task<Result<Entity<Workspace>>> {
 3388        let requesting_window = window.window_handle().downcast::<MultiWorkspace>();
 3389        let is_remote = self.project.read(cx).is_via_collab();
 3390        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3391        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3392
 3393        let workspace_is_empty = !is_remote && !has_worktree && !has_dirty_items;
 3394        if workspace_is_empty {
 3395            open_mode = OpenMode::Replace;
 3396        }
 3397
 3398        let app_state = self.app_state.clone();
 3399
 3400        cx.spawn(async move |_, cx| {
 3401            let OpenResult { workspace, .. } = cx
 3402                .update(|cx| {
 3403                    open_paths(
 3404                        &paths,
 3405                        app_state,
 3406                        OpenOptions {
 3407                            requesting_window,
 3408                            open_mode,
 3409                            ..Default::default()
 3410                        },
 3411                        cx,
 3412                    )
 3413                })
 3414                .await?;
 3415            Ok(workspace)
 3416        })
 3417    }
 3418
 3419    #[allow(clippy::type_complexity)]
 3420    pub fn open_paths(
 3421        &mut self,
 3422        mut abs_paths: Vec<PathBuf>,
 3423        options: OpenOptions,
 3424        pane: Option<WeakEntity<Pane>>,
 3425        window: &mut Window,
 3426        cx: &mut Context<Self>,
 3427    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3428        let fs = self.app_state.fs.clone();
 3429
 3430        let caller_ordered_abs_paths = abs_paths.clone();
 3431
 3432        // Sort the paths to ensure we add worktrees for parents before their children.
 3433        abs_paths.sort_unstable();
 3434        cx.spawn_in(window, async move |this, cx| {
 3435            let mut tasks = Vec::with_capacity(abs_paths.len());
 3436
 3437            for abs_path in &abs_paths {
 3438                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3439                    OpenVisible::All => Some(true),
 3440                    OpenVisible::None => Some(false),
 3441                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3442                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3443                        Some(None) => Some(true),
 3444                        None => None,
 3445                    },
 3446                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3447                        Some(Some(metadata)) => Some(metadata.is_dir),
 3448                        Some(None) => Some(false),
 3449                        None => None,
 3450                    },
 3451                };
 3452                let project_path = match visible {
 3453                    Some(visible) => match this
 3454                        .update(cx, |this, cx| {
 3455                            Workspace::project_path_for_path(
 3456                                this.project.clone(),
 3457                                abs_path,
 3458                                visible,
 3459                                cx,
 3460                            )
 3461                        })
 3462                        .log_err()
 3463                    {
 3464                        Some(project_path) => project_path.await.log_err(),
 3465                        None => None,
 3466                    },
 3467                    None => None,
 3468                };
 3469
 3470                let this = this.clone();
 3471                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3472                let fs = fs.clone();
 3473                let pane = pane.clone();
 3474                let task = cx.spawn(async move |cx| {
 3475                    let (_worktree, project_path) = project_path?;
 3476                    if fs.is_dir(&abs_path).await {
 3477                        // Opening a directory should not race to update the active entry.
 3478                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3479                        None
 3480                    } else {
 3481                        Some(
 3482                            this.update_in(cx, |this, window, cx| {
 3483                                this.open_path(
 3484                                    project_path,
 3485                                    pane,
 3486                                    options.focus.unwrap_or(true),
 3487                                    window,
 3488                                    cx,
 3489                                )
 3490                            })
 3491                            .ok()?
 3492                            .await,
 3493                        )
 3494                    }
 3495                });
 3496                tasks.push(task);
 3497            }
 3498
 3499            let results = futures::future::join_all(tasks).await;
 3500
 3501            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3502            let mut winner: Option<(PathBuf, bool)> = None;
 3503            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3504                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3505                    if !metadata.is_dir {
 3506                        winner = Some((abs_path, false));
 3507                        break;
 3508                    }
 3509                    if winner.is_none() {
 3510                        winner = Some((abs_path, true));
 3511                    }
 3512                } else if winner.is_none() {
 3513                    winner = Some((abs_path, false));
 3514                }
 3515            }
 3516
 3517            // Compute the winner entry id on the foreground thread and emit once, after all
 3518            // paths finish opening. This avoids races between concurrently-opening paths
 3519            // (directories in particular) and makes the resulting project panel selection
 3520            // deterministic.
 3521            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3522                'emit_winner: {
 3523                    let winner_abs_path: Arc<Path> =
 3524                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3525
 3526                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3527                        OpenVisible::All => true,
 3528                        OpenVisible::None => false,
 3529                        OpenVisible::OnlyFiles => !winner_is_dir,
 3530                        OpenVisible::OnlyDirectories => winner_is_dir,
 3531                    };
 3532
 3533                    let Some(worktree_task) = this
 3534                        .update(cx, |workspace, cx| {
 3535                            workspace.project.update(cx, |project, cx| {
 3536                                project.find_or_create_worktree(
 3537                                    winner_abs_path.as_ref(),
 3538                                    visible,
 3539                                    cx,
 3540                                )
 3541                            })
 3542                        })
 3543                        .ok()
 3544                    else {
 3545                        break 'emit_winner;
 3546                    };
 3547
 3548                    let Ok((worktree, _)) = worktree_task.await else {
 3549                        break 'emit_winner;
 3550                    };
 3551
 3552                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3553                        let worktree = worktree.read(cx);
 3554                        let worktree_abs_path = worktree.abs_path();
 3555                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3556                            worktree.root_entry()
 3557                        } else {
 3558                            winner_abs_path
 3559                                .strip_prefix(worktree_abs_path.as_ref())
 3560                                .ok()
 3561                                .and_then(|relative_path| {
 3562                                    let relative_path =
 3563                                        RelPath::new(relative_path, PathStyle::local())
 3564                                            .log_err()?;
 3565                                    worktree.entry_for_path(&relative_path)
 3566                                })
 3567                        }?;
 3568                        Some(entry.id)
 3569                    }) else {
 3570                        break 'emit_winner;
 3571                    };
 3572
 3573                    this.update(cx, |workspace, cx| {
 3574                        workspace.project.update(cx, |_, cx| {
 3575                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3576                        });
 3577                    })
 3578                    .ok();
 3579                }
 3580            }
 3581
 3582            results
 3583        })
 3584    }
 3585
 3586    pub fn open_resolved_path(
 3587        &mut self,
 3588        path: ResolvedPath,
 3589        window: &mut Window,
 3590        cx: &mut Context<Self>,
 3591    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3592        match path {
 3593            ResolvedPath::ProjectPath { project_path, .. } => {
 3594                self.open_path(project_path, None, true, window, cx)
 3595            }
 3596            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3597                PathBuf::from(path),
 3598                OpenOptions {
 3599                    visible: Some(OpenVisible::None),
 3600                    ..Default::default()
 3601                },
 3602                window,
 3603                cx,
 3604            ),
 3605        }
 3606    }
 3607
 3608    pub fn absolute_path_of_worktree(
 3609        &self,
 3610        worktree_id: WorktreeId,
 3611        cx: &mut Context<Self>,
 3612    ) -> Option<PathBuf> {
 3613        self.project
 3614            .read(cx)
 3615            .worktree_for_id(worktree_id, cx)
 3616            // TODO: use `abs_path` or `root_dir`
 3617            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3618    }
 3619
 3620    pub fn add_folder_to_project(
 3621        &mut self,
 3622        _: &AddFolderToProject,
 3623        window: &mut Window,
 3624        cx: &mut Context<Self>,
 3625    ) {
 3626        let project = self.project.read(cx);
 3627        if project.is_via_collab() {
 3628            self.show_error(
 3629                &anyhow!("You cannot add folders to someone else's project"),
 3630                cx,
 3631            );
 3632            return;
 3633        }
 3634        let paths = self.prompt_for_open_path(
 3635            PathPromptOptions {
 3636                files: false,
 3637                directories: true,
 3638                multiple: true,
 3639                prompt: None,
 3640            },
 3641            DirectoryLister::Project(self.project.clone()),
 3642            window,
 3643            cx,
 3644        );
 3645        cx.spawn_in(window, async move |this, cx| {
 3646            if let Some(paths) = paths.await.log_err().flatten() {
 3647                let results = this
 3648                    .update_in(cx, |this, window, cx| {
 3649                        this.open_paths(
 3650                            paths,
 3651                            OpenOptions {
 3652                                visible: Some(OpenVisible::All),
 3653                                ..Default::default()
 3654                            },
 3655                            None,
 3656                            window,
 3657                            cx,
 3658                        )
 3659                    })?
 3660                    .await;
 3661                for result in results.into_iter().flatten() {
 3662                    result.log_err();
 3663                }
 3664            }
 3665            anyhow::Ok(())
 3666        })
 3667        .detach_and_log_err(cx);
 3668    }
 3669
 3670    pub fn project_path_for_path(
 3671        project: Entity<Project>,
 3672        abs_path: &Path,
 3673        visible: bool,
 3674        cx: &mut App,
 3675    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3676        let entry = project.update(cx, |project, cx| {
 3677            project.find_or_create_worktree(abs_path, visible, cx)
 3678        });
 3679        cx.spawn(async move |cx| {
 3680            let (worktree, path) = entry.await?;
 3681            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3682            Ok((worktree, ProjectPath { worktree_id, path }))
 3683        })
 3684    }
 3685
 3686    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3687        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3688    }
 3689
 3690    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3691        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3692    }
 3693
 3694    pub fn items_of_type<'a, T: Item>(
 3695        &'a self,
 3696        cx: &'a App,
 3697    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3698        self.panes
 3699            .iter()
 3700            .flat_map(|pane| pane.read(cx).items_of_type())
 3701    }
 3702
 3703    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3704        self.active_pane().read(cx).active_item()
 3705    }
 3706
 3707    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3708        let item = self.active_item(cx)?;
 3709        item.to_any_view().downcast::<I>().ok()
 3710    }
 3711
 3712    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3713        self.active_item(cx).and_then(|item| item.project_path(cx))
 3714    }
 3715
 3716    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3717        self.recent_navigation_history_iter(cx)
 3718            .filter_map(|(path, abs_path)| {
 3719                let worktree = self
 3720                    .project
 3721                    .read(cx)
 3722                    .worktree_for_id(path.worktree_id, cx)?;
 3723                if worktree.read(cx).is_visible() {
 3724                    abs_path
 3725                } else {
 3726                    None
 3727                }
 3728            })
 3729            .next()
 3730    }
 3731
 3732    pub fn save_active_item(
 3733        &mut self,
 3734        save_intent: SaveIntent,
 3735        window: &mut Window,
 3736        cx: &mut App,
 3737    ) -> Task<Result<()>> {
 3738        let project = self.project.clone();
 3739        let pane = self.active_pane();
 3740        let item = pane.read(cx).active_item();
 3741        let pane = pane.downgrade();
 3742
 3743        window.spawn(cx, async move |cx| {
 3744            if let Some(item) = item {
 3745                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3746                    .await
 3747                    .map(|_| ())
 3748            } else {
 3749                Ok(())
 3750            }
 3751        })
 3752    }
 3753
 3754    pub fn close_inactive_items_and_panes(
 3755        &mut self,
 3756        action: &CloseInactiveTabsAndPanes,
 3757        window: &mut Window,
 3758        cx: &mut Context<Self>,
 3759    ) {
 3760        if let Some(task) = self.close_all_internal(
 3761            true,
 3762            action.save_intent.unwrap_or(SaveIntent::Close),
 3763            window,
 3764            cx,
 3765        ) {
 3766            task.detach_and_log_err(cx)
 3767        }
 3768    }
 3769
 3770    pub fn close_all_items_and_panes(
 3771        &mut self,
 3772        action: &CloseAllItemsAndPanes,
 3773        window: &mut Window,
 3774        cx: &mut Context<Self>,
 3775    ) {
 3776        if let Some(task) = self.close_all_internal(
 3777            false,
 3778            action.save_intent.unwrap_or(SaveIntent::Close),
 3779            window,
 3780            cx,
 3781        ) {
 3782            task.detach_and_log_err(cx)
 3783        }
 3784    }
 3785
 3786    /// Closes the active item across all panes.
 3787    pub fn close_item_in_all_panes(
 3788        &mut self,
 3789        action: &CloseItemInAllPanes,
 3790        window: &mut Window,
 3791        cx: &mut Context<Self>,
 3792    ) {
 3793        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3794            return;
 3795        };
 3796
 3797        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3798        let close_pinned = action.close_pinned;
 3799
 3800        if let Some(project_path) = active_item.project_path(cx) {
 3801            self.close_items_with_project_path(
 3802                &project_path,
 3803                save_intent,
 3804                close_pinned,
 3805                window,
 3806                cx,
 3807            );
 3808        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3809            let item_id = active_item.item_id();
 3810            self.active_pane().update(cx, |pane, cx| {
 3811                pane.close_item_by_id(item_id, save_intent, window, cx)
 3812                    .detach_and_log_err(cx);
 3813            });
 3814        }
 3815    }
 3816
 3817    /// Closes all items with the given project path across all panes.
 3818    pub fn close_items_with_project_path(
 3819        &mut self,
 3820        project_path: &ProjectPath,
 3821        save_intent: SaveIntent,
 3822        close_pinned: bool,
 3823        window: &mut Window,
 3824        cx: &mut Context<Self>,
 3825    ) {
 3826        let panes = self.panes().to_vec();
 3827        for pane in panes {
 3828            pane.update(cx, |pane, cx| {
 3829                pane.close_items_for_project_path(
 3830                    project_path,
 3831                    save_intent,
 3832                    close_pinned,
 3833                    window,
 3834                    cx,
 3835                )
 3836                .detach_and_log_err(cx);
 3837            });
 3838        }
 3839    }
 3840
 3841    fn close_all_internal(
 3842        &mut self,
 3843        retain_active_pane: bool,
 3844        save_intent: SaveIntent,
 3845        window: &mut Window,
 3846        cx: &mut Context<Self>,
 3847    ) -> Option<Task<Result<()>>> {
 3848        let current_pane = self.active_pane();
 3849
 3850        let mut tasks = Vec::new();
 3851
 3852        if retain_active_pane {
 3853            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3854                pane.close_other_items(
 3855                    &CloseOtherItems {
 3856                        save_intent: None,
 3857                        close_pinned: false,
 3858                    },
 3859                    None,
 3860                    window,
 3861                    cx,
 3862                )
 3863            });
 3864
 3865            tasks.push(current_pane_close);
 3866        }
 3867
 3868        for pane in self.panes() {
 3869            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3870                continue;
 3871            }
 3872
 3873            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3874                pane.close_all_items(
 3875                    &CloseAllItems {
 3876                        save_intent: Some(save_intent),
 3877                        close_pinned: false,
 3878                    },
 3879                    window,
 3880                    cx,
 3881                )
 3882            });
 3883
 3884            tasks.push(close_pane_items)
 3885        }
 3886
 3887        if tasks.is_empty() {
 3888            None
 3889        } else {
 3890            Some(cx.spawn_in(window, async move |_, _| {
 3891                for task in tasks {
 3892                    task.await?
 3893                }
 3894                Ok(())
 3895            }))
 3896        }
 3897    }
 3898
 3899    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3900        self.dock_at_position(position).read(cx).is_open()
 3901    }
 3902
 3903    pub fn toggle_dock(
 3904        &mut self,
 3905        dock_side: DockPosition,
 3906        window: &mut Window,
 3907        cx: &mut Context<Self>,
 3908    ) {
 3909        let mut focus_center = false;
 3910        let mut reveal_dock = false;
 3911
 3912        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3913        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3914
 3915        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3916            telemetry::event!(
 3917                "Panel Button Clicked",
 3918                name = panel.persistent_name(),
 3919                toggle_state = !was_visible
 3920            );
 3921        }
 3922        if was_visible {
 3923            self.save_open_dock_positions(cx);
 3924        }
 3925
 3926        let dock = self.dock_at_position(dock_side);
 3927        dock.update(cx, |dock, cx| {
 3928            dock.set_open(!was_visible, window, cx);
 3929
 3930            if dock.active_panel().is_none() {
 3931                let Some(panel_ix) = dock
 3932                    .first_enabled_panel_idx(cx)
 3933                    .log_with_level(log::Level::Info)
 3934                else {
 3935                    return;
 3936                };
 3937                dock.activate_panel(panel_ix, window, cx);
 3938            }
 3939
 3940            if let Some(active_panel) = dock.active_panel() {
 3941                if was_visible {
 3942                    if active_panel
 3943                        .panel_focus_handle(cx)
 3944                        .contains_focused(window, cx)
 3945                    {
 3946                        focus_center = true;
 3947                    }
 3948                } else {
 3949                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3950                    window.focus(focus_handle, cx);
 3951                    reveal_dock = true;
 3952                }
 3953            }
 3954        });
 3955
 3956        if reveal_dock {
 3957            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3958        }
 3959
 3960        if focus_center {
 3961            self.active_pane
 3962                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3963        }
 3964
 3965        cx.notify();
 3966        self.serialize_workspace(window, cx);
 3967    }
 3968
 3969    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3970        self.all_docks().into_iter().find(|&dock| {
 3971            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3972        })
 3973    }
 3974
 3975    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3976        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3977            self.save_open_dock_positions(cx);
 3978            dock.update(cx, |dock, cx| {
 3979                dock.set_open(false, window, cx);
 3980            });
 3981            return true;
 3982        }
 3983        false
 3984    }
 3985
 3986    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3987        self.save_open_dock_positions(cx);
 3988        for dock in self.all_docks() {
 3989            dock.update(cx, |dock, cx| {
 3990                dock.set_open(false, window, cx);
 3991            });
 3992        }
 3993
 3994        cx.focus_self(window);
 3995        cx.notify();
 3996        self.serialize_workspace(window, cx);
 3997    }
 3998
 3999    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 4000        self.all_docks()
 4001            .into_iter()
 4002            .filter_map(|dock| {
 4003                let dock_ref = dock.read(cx);
 4004                if dock_ref.is_open() {
 4005                    Some(dock_ref.position())
 4006                } else {
 4007                    None
 4008                }
 4009            })
 4010            .collect()
 4011    }
 4012
 4013    /// Saves the positions of currently open docks.
 4014    ///
 4015    /// Updates `last_open_dock_positions` with positions of all currently open
 4016    /// docks, to later be restored by the 'Toggle All Docks' action.
 4017    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 4018        let open_dock_positions = self.get_open_dock_positions(cx);
 4019        if !open_dock_positions.is_empty() {
 4020            self.last_open_dock_positions = open_dock_positions;
 4021        }
 4022    }
 4023
 4024    /// Toggles all docks between open and closed states.
 4025    ///
 4026    /// If any docks are open, closes all and remembers their positions. If all
 4027    /// docks are closed, restores the last remembered dock configuration.
 4028    fn toggle_all_docks(
 4029        &mut self,
 4030        _: &ToggleAllDocks,
 4031        window: &mut Window,
 4032        cx: &mut Context<Self>,
 4033    ) {
 4034        let open_dock_positions = self.get_open_dock_positions(cx);
 4035
 4036        if !open_dock_positions.is_empty() {
 4037            self.close_all_docks(window, cx);
 4038        } else if !self.last_open_dock_positions.is_empty() {
 4039            self.restore_last_open_docks(window, cx);
 4040        }
 4041    }
 4042
 4043    /// Reopens docks from the most recently remembered configuration.
 4044    ///
 4045    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 4046    /// and clears the stored positions.
 4047    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4048        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 4049
 4050        for position in positions_to_open {
 4051            let dock = self.dock_at_position(position);
 4052            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 4053        }
 4054
 4055        cx.focus_self(window);
 4056        cx.notify();
 4057        self.serialize_workspace(window, cx);
 4058    }
 4059
 4060    /// Transfer focus to the panel of the given type.
 4061    pub fn focus_panel<T: Panel>(
 4062        &mut self,
 4063        window: &mut Window,
 4064        cx: &mut Context<Self>,
 4065    ) -> Option<Entity<T>> {
 4066        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 4067        panel.to_any().downcast().ok()
 4068    }
 4069
 4070    /// Focus the panel of the given type if it isn't already focused. If it is
 4071    /// already focused, then transfer focus back to the workspace center.
 4072    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 4073    /// panel when transferring focus back to the center.
 4074    pub fn toggle_panel_focus<T: Panel>(
 4075        &mut self,
 4076        window: &mut Window,
 4077        cx: &mut Context<Self>,
 4078    ) -> bool {
 4079        let mut did_focus_panel = false;
 4080        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 4081            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 4082            did_focus_panel
 4083        });
 4084
 4085        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4086            self.close_panel::<T>(window, cx);
 4087        }
 4088
 4089        telemetry::event!(
 4090            "Panel Button Clicked",
 4091            name = T::persistent_name(),
 4092            toggle_state = did_focus_panel
 4093        );
 4094
 4095        did_focus_panel
 4096    }
 4097
 4098    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4099        if let Some(item) = self.active_item(cx) {
 4100            item.item_focus_handle(cx).focus(window, cx);
 4101        } else {
 4102            log::error!("Could not find a focus target when switching focus to the center panes",);
 4103        }
 4104    }
 4105
 4106    pub fn activate_panel_for_proto_id(
 4107        &mut self,
 4108        panel_id: PanelId,
 4109        window: &mut Window,
 4110        cx: &mut Context<Self>,
 4111    ) -> Option<Arc<dyn PanelHandle>> {
 4112        let mut panel = None;
 4113        for dock in self.all_docks() {
 4114            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4115                panel = dock.update(cx, |dock, cx| {
 4116                    dock.activate_panel(panel_index, window, cx);
 4117                    dock.set_open(true, window, cx);
 4118                    dock.active_panel().cloned()
 4119                });
 4120                break;
 4121            }
 4122        }
 4123
 4124        if panel.is_some() {
 4125            cx.notify();
 4126            self.serialize_workspace(window, cx);
 4127        }
 4128
 4129        panel
 4130    }
 4131
 4132    /// Focus or unfocus the given panel type, depending on the given callback.
 4133    fn focus_or_unfocus_panel<T: Panel>(
 4134        &mut self,
 4135        window: &mut Window,
 4136        cx: &mut Context<Self>,
 4137        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4138    ) -> Option<Arc<dyn PanelHandle>> {
 4139        let mut result_panel = None;
 4140        let mut serialize = false;
 4141        for dock in self.all_docks() {
 4142            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4143                let mut focus_center = false;
 4144                let panel = dock.update(cx, |dock, cx| {
 4145                    dock.activate_panel(panel_index, window, cx);
 4146
 4147                    let panel = dock.active_panel().cloned();
 4148                    if let Some(panel) = panel.as_ref() {
 4149                        if should_focus(&**panel, window, cx) {
 4150                            dock.set_open(true, window, cx);
 4151                            panel.panel_focus_handle(cx).focus(window, cx);
 4152                        } else {
 4153                            focus_center = true;
 4154                        }
 4155                    }
 4156                    panel
 4157                });
 4158
 4159                if focus_center {
 4160                    self.active_pane
 4161                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4162                }
 4163
 4164                result_panel = panel;
 4165                serialize = true;
 4166                break;
 4167            }
 4168        }
 4169
 4170        if serialize {
 4171            self.serialize_workspace(window, cx);
 4172        }
 4173
 4174        cx.notify();
 4175        result_panel
 4176    }
 4177
 4178    /// Open the panel of the given type
 4179    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4180        for dock in self.all_docks() {
 4181            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4182                dock.update(cx, |dock, cx| {
 4183                    dock.activate_panel(panel_index, window, cx);
 4184                    dock.set_open(true, window, cx);
 4185                });
 4186            }
 4187        }
 4188    }
 4189
 4190    /// Open the panel of the given type, dismissing any zoomed items that
 4191    /// would obscure it (e.g. a zoomed terminal).
 4192    pub fn reveal_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4193        let dock_position = self.all_docks().iter().find_map(|dock| {
 4194            let dock = dock.read(cx);
 4195            dock.panel_index_for_type::<T>().map(|_| dock.position())
 4196        });
 4197        self.dismiss_zoomed_items_to_reveal(dock_position, window, cx);
 4198        self.open_panel::<T>(window, cx);
 4199    }
 4200
 4201    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4202        for dock in self.all_docks().iter() {
 4203            dock.update(cx, |dock, cx| {
 4204                if dock.panel::<T>().is_some() {
 4205                    dock.set_open(false, window, cx)
 4206                }
 4207            })
 4208        }
 4209    }
 4210
 4211    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4212        self.all_docks()
 4213            .iter()
 4214            .find_map(|dock| dock.read(cx).panel::<T>())
 4215    }
 4216
 4217    fn dismiss_zoomed_items_to_reveal(
 4218        &mut self,
 4219        dock_to_reveal: Option<DockPosition>,
 4220        window: &mut Window,
 4221        cx: &mut Context<Self>,
 4222    ) {
 4223        // If a center pane is zoomed, unzoom it.
 4224        for pane in &self.panes {
 4225            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4226                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4227            }
 4228        }
 4229
 4230        // If another dock is zoomed, hide it.
 4231        let mut focus_center = false;
 4232        for dock in self.all_docks() {
 4233            dock.update(cx, |dock, cx| {
 4234                if Some(dock.position()) != dock_to_reveal
 4235                    && let Some(panel) = dock.active_panel()
 4236                    && panel.is_zoomed(window, cx)
 4237                {
 4238                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4239                    dock.set_open(false, window, cx);
 4240                }
 4241            });
 4242        }
 4243
 4244        if focus_center {
 4245            self.active_pane
 4246                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4247        }
 4248
 4249        if self.zoomed_position != dock_to_reveal {
 4250            self.zoomed = None;
 4251            self.zoomed_position = None;
 4252            cx.emit(Event::ZoomChanged);
 4253        }
 4254
 4255        cx.notify();
 4256    }
 4257
 4258    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4259        let pane = cx.new(|cx| {
 4260            let mut pane = Pane::new(
 4261                self.weak_handle(),
 4262                self.project.clone(),
 4263                self.pane_history_timestamp.clone(),
 4264                None,
 4265                NewFile.boxed_clone(),
 4266                true,
 4267                window,
 4268                cx,
 4269            );
 4270            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4271            pane
 4272        });
 4273        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4274            .detach();
 4275        self.panes.push(pane.clone());
 4276
 4277        window.focus(&pane.focus_handle(cx), cx);
 4278
 4279        cx.emit(Event::PaneAdded(pane.clone()));
 4280        pane
 4281    }
 4282
 4283    pub fn add_item_to_center(
 4284        &mut self,
 4285        item: Box<dyn ItemHandle>,
 4286        window: &mut Window,
 4287        cx: &mut Context<Self>,
 4288    ) -> bool {
 4289        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4290            if let Some(center_pane) = center_pane.upgrade() {
 4291                center_pane.update(cx, |pane, cx| {
 4292                    pane.add_item(item, true, true, None, window, cx)
 4293                });
 4294                true
 4295            } else {
 4296                false
 4297            }
 4298        } else {
 4299            false
 4300        }
 4301    }
 4302
 4303    pub fn add_item_to_active_pane(
 4304        &mut self,
 4305        item: Box<dyn ItemHandle>,
 4306        destination_index: Option<usize>,
 4307        focus_item: bool,
 4308        window: &mut Window,
 4309        cx: &mut App,
 4310    ) {
 4311        self.add_item(
 4312            self.active_pane.clone(),
 4313            item,
 4314            destination_index,
 4315            false,
 4316            focus_item,
 4317            window,
 4318            cx,
 4319        )
 4320    }
 4321
 4322    pub fn add_item(
 4323        &mut self,
 4324        pane: Entity<Pane>,
 4325        item: Box<dyn ItemHandle>,
 4326        destination_index: Option<usize>,
 4327        activate_pane: bool,
 4328        focus_item: bool,
 4329        window: &mut Window,
 4330        cx: &mut App,
 4331    ) {
 4332        pane.update(cx, |pane, cx| {
 4333            pane.add_item(
 4334                item,
 4335                activate_pane,
 4336                focus_item,
 4337                destination_index,
 4338                window,
 4339                cx,
 4340            )
 4341        });
 4342    }
 4343
 4344    pub fn split_item(
 4345        &mut self,
 4346        split_direction: SplitDirection,
 4347        item: Box<dyn ItemHandle>,
 4348        window: &mut Window,
 4349        cx: &mut Context<Self>,
 4350    ) {
 4351        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4352        self.add_item(new_pane, item, None, true, true, window, cx);
 4353    }
 4354
 4355    pub fn open_abs_path(
 4356        &mut self,
 4357        abs_path: PathBuf,
 4358        options: OpenOptions,
 4359        window: &mut Window,
 4360        cx: &mut Context<Self>,
 4361    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4362        cx.spawn_in(window, async move |workspace, cx| {
 4363            let open_paths_task_result = workspace
 4364                .update_in(cx, |workspace, window, cx| {
 4365                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4366                })
 4367                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4368                .await;
 4369            anyhow::ensure!(
 4370                open_paths_task_result.len() == 1,
 4371                "open abs path {abs_path:?} task returned incorrect number of results"
 4372            );
 4373            match open_paths_task_result
 4374                .into_iter()
 4375                .next()
 4376                .expect("ensured single task result")
 4377            {
 4378                Some(open_result) => {
 4379                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4380                }
 4381                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4382            }
 4383        })
 4384    }
 4385
 4386    pub fn split_abs_path(
 4387        &mut self,
 4388        abs_path: PathBuf,
 4389        visible: bool,
 4390        window: &mut Window,
 4391        cx: &mut Context<Self>,
 4392    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4393        let project_path_task =
 4394            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4395        cx.spawn_in(window, async move |this, cx| {
 4396            let (_, path) = project_path_task.await?;
 4397            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4398                .await
 4399        })
 4400    }
 4401
 4402    pub fn open_path(
 4403        &mut self,
 4404        path: impl Into<ProjectPath>,
 4405        pane: Option<WeakEntity<Pane>>,
 4406        focus_item: bool,
 4407        window: &mut Window,
 4408        cx: &mut App,
 4409    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4410        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4411    }
 4412
 4413    pub fn open_path_preview(
 4414        &mut self,
 4415        path: impl Into<ProjectPath>,
 4416        pane: Option<WeakEntity<Pane>>,
 4417        focus_item: bool,
 4418        allow_preview: bool,
 4419        activate: bool,
 4420        window: &mut Window,
 4421        cx: &mut App,
 4422    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4423        let pane = pane.unwrap_or_else(|| {
 4424            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4425                self.panes
 4426                    .first()
 4427                    .expect("There must be an active pane")
 4428                    .downgrade()
 4429            })
 4430        });
 4431
 4432        let project_path = path.into();
 4433        let task = self.load_path(project_path.clone(), window, cx);
 4434        window.spawn(cx, async move |cx| {
 4435            let (project_entry_id, build_item) = task.await?;
 4436
 4437            pane.update_in(cx, |pane, window, cx| {
 4438                pane.open_item(
 4439                    project_entry_id,
 4440                    project_path,
 4441                    focus_item,
 4442                    allow_preview,
 4443                    activate,
 4444                    None,
 4445                    window,
 4446                    cx,
 4447                    build_item,
 4448                )
 4449            })
 4450        })
 4451    }
 4452
 4453    pub fn split_path(
 4454        &mut self,
 4455        path: impl Into<ProjectPath>,
 4456        window: &mut Window,
 4457        cx: &mut Context<Self>,
 4458    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4459        self.split_path_preview(path, false, None, window, cx)
 4460    }
 4461
 4462    pub fn split_path_preview(
 4463        &mut self,
 4464        path: impl Into<ProjectPath>,
 4465        allow_preview: bool,
 4466        split_direction: Option<SplitDirection>,
 4467        window: &mut Window,
 4468        cx: &mut Context<Self>,
 4469    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4470        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4471            self.panes
 4472                .first()
 4473                .expect("There must be an active pane")
 4474                .downgrade()
 4475        });
 4476
 4477        if let Member::Pane(center_pane) = &self.center.root
 4478            && center_pane.read(cx).items_len() == 0
 4479        {
 4480            return self.open_path(path, Some(pane), true, window, cx);
 4481        }
 4482
 4483        let project_path = path.into();
 4484        let task = self.load_path(project_path.clone(), window, cx);
 4485        cx.spawn_in(window, async move |this, cx| {
 4486            let (project_entry_id, build_item) = task.await?;
 4487            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4488                let pane = pane.upgrade()?;
 4489                let new_pane = this.split_pane(
 4490                    pane,
 4491                    split_direction.unwrap_or(SplitDirection::Right),
 4492                    window,
 4493                    cx,
 4494                );
 4495                new_pane.update(cx, |new_pane, cx| {
 4496                    Some(new_pane.open_item(
 4497                        project_entry_id,
 4498                        project_path,
 4499                        true,
 4500                        allow_preview,
 4501                        true,
 4502                        None,
 4503                        window,
 4504                        cx,
 4505                        build_item,
 4506                    ))
 4507                })
 4508            })
 4509            .map(|option| option.context("pane was dropped"))?
 4510        })
 4511    }
 4512
 4513    fn load_path(
 4514        &mut self,
 4515        path: ProjectPath,
 4516        window: &mut Window,
 4517        cx: &mut App,
 4518    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4519        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4520        registry.open_path(self.project(), &path, window, cx)
 4521    }
 4522
 4523    pub fn find_project_item<T>(
 4524        &self,
 4525        pane: &Entity<Pane>,
 4526        project_item: &Entity<T::Item>,
 4527        cx: &App,
 4528    ) -> Option<Entity<T>>
 4529    where
 4530        T: ProjectItem,
 4531    {
 4532        use project::ProjectItem as _;
 4533        let project_item = project_item.read(cx);
 4534        let entry_id = project_item.entry_id(cx);
 4535        let project_path = project_item.project_path(cx);
 4536
 4537        let mut item = None;
 4538        if let Some(entry_id) = entry_id {
 4539            item = pane.read(cx).item_for_entry(entry_id, cx);
 4540        }
 4541        if item.is_none()
 4542            && let Some(project_path) = project_path
 4543        {
 4544            item = pane.read(cx).item_for_path(project_path, cx);
 4545        }
 4546
 4547        item.and_then(|item| item.downcast::<T>())
 4548    }
 4549
 4550    pub fn is_project_item_open<T>(
 4551        &self,
 4552        pane: &Entity<Pane>,
 4553        project_item: &Entity<T::Item>,
 4554        cx: &App,
 4555    ) -> bool
 4556    where
 4557        T: ProjectItem,
 4558    {
 4559        self.find_project_item::<T>(pane, project_item, cx)
 4560            .is_some()
 4561    }
 4562
 4563    pub fn open_project_item<T>(
 4564        &mut self,
 4565        pane: Entity<Pane>,
 4566        project_item: Entity<T::Item>,
 4567        activate_pane: bool,
 4568        focus_item: bool,
 4569        keep_old_preview: bool,
 4570        allow_new_preview: bool,
 4571        window: &mut Window,
 4572        cx: &mut Context<Self>,
 4573    ) -> Entity<T>
 4574    where
 4575        T: ProjectItem,
 4576    {
 4577        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4578
 4579        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4580            if !keep_old_preview
 4581                && let Some(old_id) = old_item_id
 4582                && old_id != item.item_id()
 4583            {
 4584                // switching to a different item, so unpreview old active item
 4585                pane.update(cx, |pane, _| {
 4586                    pane.unpreview_item_if_preview(old_id);
 4587                });
 4588            }
 4589
 4590            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4591            if !allow_new_preview {
 4592                pane.update(cx, |pane, _| {
 4593                    pane.unpreview_item_if_preview(item.item_id());
 4594                });
 4595            }
 4596            return item;
 4597        }
 4598
 4599        let item = pane.update(cx, |pane, cx| {
 4600            cx.new(|cx| {
 4601                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4602            })
 4603        });
 4604        let mut destination_index = None;
 4605        pane.update(cx, |pane, cx| {
 4606            if !keep_old_preview && let Some(old_id) = old_item_id {
 4607                pane.unpreview_item_if_preview(old_id);
 4608            }
 4609            if allow_new_preview {
 4610                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4611            }
 4612        });
 4613
 4614        self.add_item(
 4615            pane,
 4616            Box::new(item.clone()),
 4617            destination_index,
 4618            activate_pane,
 4619            focus_item,
 4620            window,
 4621            cx,
 4622        );
 4623        item
 4624    }
 4625
 4626    pub fn open_shared_screen(
 4627        &mut self,
 4628        peer_id: PeerId,
 4629        window: &mut Window,
 4630        cx: &mut Context<Self>,
 4631    ) {
 4632        if let Some(shared_screen) =
 4633            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4634        {
 4635            self.active_pane.update(cx, |pane, cx| {
 4636                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4637            });
 4638        }
 4639    }
 4640
 4641    pub fn activate_item(
 4642        &mut self,
 4643        item: &dyn ItemHandle,
 4644        activate_pane: bool,
 4645        focus_item: bool,
 4646        window: &mut Window,
 4647        cx: &mut App,
 4648    ) -> bool {
 4649        let result = self.panes.iter().find_map(|pane| {
 4650            pane.read(cx)
 4651                .index_for_item(item)
 4652                .map(|ix| (pane.clone(), ix))
 4653        });
 4654        if let Some((pane, ix)) = result {
 4655            pane.update(cx, |pane, cx| {
 4656                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4657            });
 4658            true
 4659        } else {
 4660            false
 4661        }
 4662    }
 4663
 4664    fn activate_pane_at_index(
 4665        &mut self,
 4666        action: &ActivatePane,
 4667        window: &mut Window,
 4668        cx: &mut Context<Self>,
 4669    ) {
 4670        let panes = self.center.panes();
 4671        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4672            window.focus(&pane.focus_handle(cx), cx);
 4673        } else {
 4674            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4675                .detach();
 4676        }
 4677    }
 4678
 4679    fn move_item_to_pane_at_index(
 4680        &mut self,
 4681        action: &MoveItemToPane,
 4682        window: &mut Window,
 4683        cx: &mut Context<Self>,
 4684    ) {
 4685        let panes = self.center.panes();
 4686        let destination = match panes.get(action.destination) {
 4687            Some(&destination) => destination.clone(),
 4688            None => {
 4689                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4690                    return;
 4691                }
 4692                let direction = SplitDirection::Right;
 4693                let split_off_pane = self
 4694                    .find_pane_in_direction(direction, cx)
 4695                    .unwrap_or_else(|| self.active_pane.clone());
 4696                let new_pane = self.add_pane(window, cx);
 4697                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4698                new_pane
 4699            }
 4700        };
 4701
 4702        if action.clone {
 4703            if self
 4704                .active_pane
 4705                .read(cx)
 4706                .active_item()
 4707                .is_some_and(|item| item.can_split(cx))
 4708            {
 4709                clone_active_item(
 4710                    self.database_id(),
 4711                    &self.active_pane,
 4712                    &destination,
 4713                    action.focus,
 4714                    window,
 4715                    cx,
 4716                );
 4717                return;
 4718            }
 4719        }
 4720        move_active_item(
 4721            &self.active_pane,
 4722            &destination,
 4723            action.focus,
 4724            true,
 4725            window,
 4726            cx,
 4727        )
 4728    }
 4729
 4730    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4731        let panes = self.center.panes();
 4732        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4733            let next_ix = (ix + 1) % panes.len();
 4734            let next_pane = panes[next_ix].clone();
 4735            window.focus(&next_pane.focus_handle(cx), cx);
 4736        }
 4737    }
 4738
 4739    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4740        let panes = self.center.panes();
 4741        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4742            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4743            let prev_pane = panes[prev_ix].clone();
 4744            window.focus(&prev_pane.focus_handle(cx), cx);
 4745        }
 4746    }
 4747
 4748    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4749        let last_pane = self.center.last_pane();
 4750        window.focus(&last_pane.focus_handle(cx), cx);
 4751    }
 4752
 4753    pub fn activate_pane_in_direction(
 4754        &mut self,
 4755        direction: SplitDirection,
 4756        window: &mut Window,
 4757        cx: &mut App,
 4758    ) {
 4759        use ActivateInDirectionTarget as Target;
 4760        enum Origin {
 4761            Sidebar,
 4762            LeftDock,
 4763            RightDock,
 4764            BottomDock,
 4765            Center,
 4766        }
 4767
 4768        let origin: Origin = if self
 4769            .sidebar_focus_handle
 4770            .as_ref()
 4771            .is_some_and(|h| h.contains_focused(window, cx))
 4772        {
 4773            Origin::Sidebar
 4774        } else {
 4775            [
 4776                (&self.left_dock, Origin::LeftDock),
 4777                (&self.right_dock, Origin::RightDock),
 4778                (&self.bottom_dock, Origin::BottomDock),
 4779            ]
 4780            .into_iter()
 4781            .find_map(|(dock, origin)| {
 4782                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4783                    Some(origin)
 4784                } else {
 4785                    None
 4786                }
 4787            })
 4788            .unwrap_or(Origin::Center)
 4789        };
 4790
 4791        let get_last_active_pane = || {
 4792            let pane = self
 4793                .last_active_center_pane
 4794                .clone()
 4795                .unwrap_or_else(|| {
 4796                    self.panes
 4797                        .first()
 4798                        .expect("There must be an active pane")
 4799                        .downgrade()
 4800                })
 4801                .upgrade()?;
 4802            (pane.read(cx).items_len() != 0).then_some(pane)
 4803        };
 4804
 4805        let try_dock =
 4806            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4807
 4808        let sidebar_target = self
 4809            .sidebar_focus_handle
 4810            .as_ref()
 4811            .map(|h| Target::Sidebar(h.clone()));
 4812
 4813        let target = match (origin, direction) {
 4814            // From the sidebar, only Right navigates into the workspace.
 4815            (Origin::Sidebar, SplitDirection::Right) => try_dock(&self.left_dock)
 4816                .or_else(|| get_last_active_pane().map(Target::Pane))
 4817                .or_else(|| try_dock(&self.bottom_dock))
 4818                .or_else(|| try_dock(&self.right_dock)),
 4819
 4820            (Origin::Sidebar, _) => None,
 4821
 4822            // We're in the center, so we first try to go to a different pane,
 4823            // otherwise try to go to a dock.
 4824            (Origin::Center, direction) => {
 4825                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4826                    Some(Target::Pane(pane))
 4827                } else {
 4828                    match direction {
 4829                        SplitDirection::Up => None,
 4830                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4831                        SplitDirection::Left => try_dock(&self.left_dock).or(sidebar_target),
 4832                        SplitDirection::Right => try_dock(&self.right_dock),
 4833                    }
 4834                }
 4835            }
 4836
 4837            (Origin::LeftDock, SplitDirection::Right) => {
 4838                if let Some(last_active_pane) = get_last_active_pane() {
 4839                    Some(Target::Pane(last_active_pane))
 4840                } else {
 4841                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4842                }
 4843            }
 4844
 4845            (Origin::LeftDock, SplitDirection::Left) => sidebar_target,
 4846
 4847            (Origin::LeftDock, SplitDirection::Down)
 4848            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4849
 4850            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4851            (Origin::BottomDock, SplitDirection::Left) => {
 4852                try_dock(&self.left_dock).or(sidebar_target)
 4853            }
 4854            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4855
 4856            (Origin::RightDock, SplitDirection::Left) => {
 4857                if let Some(last_active_pane) = get_last_active_pane() {
 4858                    Some(Target::Pane(last_active_pane))
 4859                } else {
 4860                    try_dock(&self.bottom_dock)
 4861                        .or_else(|| try_dock(&self.left_dock))
 4862                        .or(sidebar_target)
 4863                }
 4864            }
 4865
 4866            _ => None,
 4867        };
 4868
 4869        match target {
 4870            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4871                let pane = pane.read(cx);
 4872                if let Some(item) = pane.active_item() {
 4873                    item.item_focus_handle(cx).focus(window, cx);
 4874                } else {
 4875                    log::error!(
 4876                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4877                    );
 4878                }
 4879            }
 4880            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4881                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4882                window.defer(cx, move |window, cx| {
 4883                    let dock = dock.read(cx);
 4884                    if let Some(panel) = dock.active_panel() {
 4885                        panel.panel_focus_handle(cx).focus(window, cx);
 4886                    } else {
 4887                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4888                    }
 4889                })
 4890            }
 4891            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4892                focus_handle.focus(window, cx);
 4893            }
 4894            None => {}
 4895        }
 4896    }
 4897
 4898    pub fn move_item_to_pane_in_direction(
 4899        &mut self,
 4900        action: &MoveItemToPaneInDirection,
 4901        window: &mut Window,
 4902        cx: &mut Context<Self>,
 4903    ) {
 4904        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4905            Some(destination) => destination,
 4906            None => {
 4907                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4908                    return;
 4909                }
 4910                let new_pane = self.add_pane(window, cx);
 4911                self.center
 4912                    .split(&self.active_pane, &new_pane, action.direction, cx);
 4913                new_pane
 4914            }
 4915        };
 4916
 4917        if action.clone {
 4918            if self
 4919                .active_pane
 4920                .read(cx)
 4921                .active_item()
 4922                .is_some_and(|item| item.can_split(cx))
 4923            {
 4924                clone_active_item(
 4925                    self.database_id(),
 4926                    &self.active_pane,
 4927                    &destination,
 4928                    action.focus,
 4929                    window,
 4930                    cx,
 4931                );
 4932                return;
 4933            }
 4934        }
 4935        move_active_item(
 4936            &self.active_pane,
 4937            &destination,
 4938            action.focus,
 4939            true,
 4940            window,
 4941            cx,
 4942        );
 4943    }
 4944
 4945    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4946        self.center.bounding_box_for_pane(pane)
 4947    }
 4948
 4949    pub fn find_pane_in_direction(
 4950        &mut self,
 4951        direction: SplitDirection,
 4952        cx: &App,
 4953    ) -> Option<Entity<Pane>> {
 4954        self.center
 4955            .find_pane_in_direction(&self.active_pane, direction, cx)
 4956            .cloned()
 4957    }
 4958
 4959    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4960        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4961            self.center.swap(&self.active_pane, &to, cx);
 4962            cx.notify();
 4963        }
 4964    }
 4965
 4966    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4967        if self
 4968            .center
 4969            .move_to_border(&self.active_pane, direction, cx)
 4970            .unwrap()
 4971        {
 4972            cx.notify();
 4973        }
 4974    }
 4975
 4976    pub fn resize_pane(
 4977        &mut self,
 4978        axis: gpui::Axis,
 4979        amount: Pixels,
 4980        window: &mut Window,
 4981        cx: &mut Context<Self>,
 4982    ) {
 4983        let docks = self.all_docks();
 4984        let active_dock = docks
 4985            .into_iter()
 4986            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4987
 4988        if let Some(dock_entity) = active_dock {
 4989            let dock = dock_entity.read(cx);
 4990            let Some(panel_size) = self.dock_size(&dock, window, cx) else {
 4991                return;
 4992            };
 4993            match dock.position() {
 4994                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4995                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4996                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4997            }
 4998        } else {
 4999            self.center
 5000                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 5001        }
 5002        cx.notify();
 5003    }
 5004
 5005    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 5006        self.center.reset_pane_sizes(cx);
 5007        cx.notify();
 5008    }
 5009
 5010    fn handle_pane_focused(
 5011        &mut self,
 5012        pane: Entity<Pane>,
 5013        window: &mut Window,
 5014        cx: &mut Context<Self>,
 5015    ) {
 5016        // This is explicitly hoisted out of the following check for pane identity as
 5017        // terminal panel panes are not registered as a center panes.
 5018        self.status_bar.update(cx, |status_bar, cx| {
 5019            status_bar.set_active_pane(&pane, window, cx);
 5020        });
 5021        if self.active_pane != pane {
 5022            self.set_active_pane(&pane, window, cx);
 5023        }
 5024
 5025        if self.last_active_center_pane.is_none() {
 5026            self.last_active_center_pane = Some(pane.downgrade());
 5027        }
 5028
 5029        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 5030        // This prevents the dock from closing when focus events fire during window activation.
 5031        // We also preserve any dock whose active panel itself has focus — this covers
 5032        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 5033        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 5034            let dock_read = dock.read(cx);
 5035            if let Some(panel) = dock_read.active_panel() {
 5036                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 5037                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 5038                {
 5039                    return Some(dock_read.position());
 5040                }
 5041            }
 5042            None
 5043        });
 5044
 5045        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 5046        if pane.read(cx).is_zoomed() {
 5047            self.zoomed = Some(pane.downgrade().into());
 5048        } else {
 5049            self.zoomed = None;
 5050        }
 5051        self.zoomed_position = None;
 5052        cx.emit(Event::ZoomChanged);
 5053        self.update_active_view_for_followers(window, cx);
 5054        pane.update(cx, |pane, _| {
 5055            pane.track_alternate_file_items();
 5056        });
 5057
 5058        cx.notify();
 5059    }
 5060
 5061    fn set_active_pane(
 5062        &mut self,
 5063        pane: &Entity<Pane>,
 5064        window: &mut Window,
 5065        cx: &mut Context<Self>,
 5066    ) {
 5067        self.active_pane = pane.clone();
 5068        self.active_item_path_changed(true, window, cx);
 5069        self.last_active_center_pane = Some(pane.downgrade());
 5070    }
 5071
 5072    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5073        self.update_active_view_for_followers(window, cx);
 5074    }
 5075
 5076    fn handle_pane_event(
 5077        &mut self,
 5078        pane: &Entity<Pane>,
 5079        event: &pane::Event,
 5080        window: &mut Window,
 5081        cx: &mut Context<Self>,
 5082    ) {
 5083        let mut serialize_workspace = true;
 5084        match event {
 5085            pane::Event::AddItem { item } => {
 5086                item.added_to_pane(self, pane.clone(), window, cx);
 5087                cx.emit(Event::ItemAdded {
 5088                    item: item.boxed_clone(),
 5089                });
 5090            }
 5091            pane::Event::Split { direction, mode } => {
 5092                match mode {
 5093                    SplitMode::ClonePane => {
 5094                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5095                            .detach();
 5096                    }
 5097                    SplitMode::EmptyPane => {
 5098                        self.split_pane(pane.clone(), *direction, window, cx);
 5099                    }
 5100                    SplitMode::MovePane => {
 5101                        self.split_and_move(pane.clone(), *direction, window, cx);
 5102                    }
 5103                };
 5104            }
 5105            pane::Event::JoinIntoNext => {
 5106                self.join_pane_into_next(pane.clone(), window, cx);
 5107            }
 5108            pane::Event::JoinAll => {
 5109                self.join_all_panes(window, cx);
 5110            }
 5111            pane::Event::Remove { focus_on_pane } => {
 5112                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5113            }
 5114            pane::Event::ActivateItem {
 5115                local,
 5116                focus_changed,
 5117            } => {
 5118                window.invalidate_character_coordinates();
 5119
 5120                pane.update(cx, |pane, _| {
 5121                    pane.track_alternate_file_items();
 5122                });
 5123                if *local {
 5124                    self.unfollow_in_pane(pane, window, cx);
 5125                }
 5126                serialize_workspace = *focus_changed || pane != self.active_pane();
 5127                if pane == self.active_pane() {
 5128                    self.active_item_path_changed(*focus_changed, window, cx);
 5129                    self.update_active_view_for_followers(window, cx);
 5130                } else if *local {
 5131                    self.set_active_pane(pane, window, cx);
 5132                }
 5133            }
 5134            pane::Event::UserSavedItem { item, save_intent } => {
 5135                cx.emit(Event::UserSavedItem {
 5136                    pane: pane.downgrade(),
 5137                    item: item.boxed_clone(),
 5138                    save_intent: *save_intent,
 5139                });
 5140                serialize_workspace = false;
 5141            }
 5142            pane::Event::ChangeItemTitle => {
 5143                if *pane == self.active_pane {
 5144                    self.active_item_path_changed(false, window, cx);
 5145                }
 5146                serialize_workspace = false;
 5147            }
 5148            pane::Event::RemovedItem { item } => {
 5149                cx.emit(Event::ActiveItemChanged);
 5150                self.update_window_edited(window, cx);
 5151                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5152                    && entry.get().entity_id() == pane.entity_id()
 5153                {
 5154                    entry.remove();
 5155                }
 5156                cx.emit(Event::ItemRemoved {
 5157                    item_id: item.item_id(),
 5158                });
 5159            }
 5160            pane::Event::Focus => {
 5161                window.invalidate_character_coordinates();
 5162                self.handle_pane_focused(pane.clone(), window, cx);
 5163            }
 5164            pane::Event::ZoomIn => {
 5165                if *pane == self.active_pane {
 5166                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5167                    if pane.read(cx).has_focus(window, cx) {
 5168                        self.zoomed = Some(pane.downgrade().into());
 5169                        self.zoomed_position = None;
 5170                        cx.emit(Event::ZoomChanged);
 5171                    }
 5172                    cx.notify();
 5173                }
 5174            }
 5175            pane::Event::ZoomOut => {
 5176                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5177                if self.zoomed_position.is_none() {
 5178                    self.zoomed = None;
 5179                    cx.emit(Event::ZoomChanged);
 5180                }
 5181                cx.notify();
 5182            }
 5183            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5184        }
 5185
 5186        if serialize_workspace {
 5187            self.serialize_workspace(window, cx);
 5188        }
 5189    }
 5190
 5191    pub fn unfollow_in_pane(
 5192        &mut self,
 5193        pane: &Entity<Pane>,
 5194        window: &mut Window,
 5195        cx: &mut Context<Workspace>,
 5196    ) -> Option<CollaboratorId> {
 5197        let leader_id = self.leader_for_pane(pane)?;
 5198        self.unfollow(leader_id, window, cx);
 5199        Some(leader_id)
 5200    }
 5201
 5202    pub fn split_pane(
 5203        &mut self,
 5204        pane_to_split: Entity<Pane>,
 5205        split_direction: SplitDirection,
 5206        window: &mut Window,
 5207        cx: &mut Context<Self>,
 5208    ) -> Entity<Pane> {
 5209        let new_pane = self.add_pane(window, cx);
 5210        self.center
 5211            .split(&pane_to_split, &new_pane, split_direction, cx);
 5212        cx.notify();
 5213        new_pane
 5214    }
 5215
 5216    pub fn split_and_move(
 5217        &mut self,
 5218        pane: Entity<Pane>,
 5219        direction: SplitDirection,
 5220        window: &mut Window,
 5221        cx: &mut Context<Self>,
 5222    ) {
 5223        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5224            return;
 5225        };
 5226        let new_pane = self.add_pane(window, cx);
 5227        new_pane.update(cx, |pane, cx| {
 5228            pane.add_item(item, true, true, None, window, cx)
 5229        });
 5230        self.center.split(&pane, &new_pane, direction, cx);
 5231        cx.notify();
 5232    }
 5233
 5234    pub fn split_and_clone(
 5235        &mut self,
 5236        pane: Entity<Pane>,
 5237        direction: SplitDirection,
 5238        window: &mut Window,
 5239        cx: &mut Context<Self>,
 5240    ) -> Task<Option<Entity<Pane>>> {
 5241        let Some(item) = pane.read(cx).active_item() else {
 5242            return Task::ready(None);
 5243        };
 5244        if !item.can_split(cx) {
 5245            return Task::ready(None);
 5246        }
 5247        let task = item.clone_on_split(self.database_id(), window, cx);
 5248        cx.spawn_in(window, async move |this, cx| {
 5249            if let Some(clone) = task.await {
 5250                this.update_in(cx, |this, window, cx| {
 5251                    let new_pane = this.add_pane(window, cx);
 5252                    let nav_history = pane.read(cx).fork_nav_history();
 5253                    new_pane.update(cx, |pane, cx| {
 5254                        pane.set_nav_history(nav_history, cx);
 5255                        pane.add_item(clone, true, true, None, window, cx)
 5256                    });
 5257                    this.center.split(&pane, &new_pane, direction, cx);
 5258                    cx.notify();
 5259                    new_pane
 5260                })
 5261                .ok()
 5262            } else {
 5263                None
 5264            }
 5265        })
 5266    }
 5267
 5268    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5269        let active_item = self.active_pane.read(cx).active_item();
 5270        for pane in &self.panes {
 5271            join_pane_into_active(&self.active_pane, pane, window, cx);
 5272        }
 5273        if let Some(active_item) = active_item {
 5274            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5275        }
 5276        cx.notify();
 5277    }
 5278
 5279    pub fn join_pane_into_next(
 5280        &mut self,
 5281        pane: Entity<Pane>,
 5282        window: &mut Window,
 5283        cx: &mut Context<Self>,
 5284    ) {
 5285        let next_pane = self
 5286            .find_pane_in_direction(SplitDirection::Right, cx)
 5287            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5288            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5289            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5290        let Some(next_pane) = next_pane else {
 5291            return;
 5292        };
 5293        move_all_items(&pane, &next_pane, window, cx);
 5294        cx.notify();
 5295    }
 5296
 5297    fn remove_pane(
 5298        &mut self,
 5299        pane: Entity<Pane>,
 5300        focus_on: Option<Entity<Pane>>,
 5301        window: &mut Window,
 5302        cx: &mut Context<Self>,
 5303    ) {
 5304        if self.center.remove(&pane, cx).unwrap() {
 5305            self.force_remove_pane(&pane, &focus_on, window, cx);
 5306            self.unfollow_in_pane(&pane, window, cx);
 5307            self.last_leaders_by_pane.remove(&pane.downgrade());
 5308            for removed_item in pane.read(cx).items() {
 5309                self.panes_by_item.remove(&removed_item.item_id());
 5310            }
 5311
 5312            cx.notify();
 5313        } else {
 5314            self.active_item_path_changed(true, window, cx);
 5315        }
 5316        cx.emit(Event::PaneRemoved);
 5317    }
 5318
 5319    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5320        &mut self.panes
 5321    }
 5322
 5323    pub fn panes(&self) -> &[Entity<Pane>] {
 5324        &self.panes
 5325    }
 5326
 5327    pub fn active_pane(&self) -> &Entity<Pane> {
 5328        &self.active_pane
 5329    }
 5330
 5331    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5332        for dock in self.all_docks() {
 5333            if dock.focus_handle(cx).contains_focused(window, cx)
 5334                && let Some(pane) = dock
 5335                    .read(cx)
 5336                    .active_panel()
 5337                    .and_then(|panel| panel.pane(cx))
 5338            {
 5339                return pane;
 5340            }
 5341        }
 5342        self.active_pane().clone()
 5343    }
 5344
 5345    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5346        self.find_pane_in_direction(SplitDirection::Right, cx)
 5347            .unwrap_or_else(|| {
 5348                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5349            })
 5350    }
 5351
 5352    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5353        self.pane_for_item_id(handle.item_id())
 5354    }
 5355
 5356    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5357        let weak_pane = self.panes_by_item.get(&item_id)?;
 5358        weak_pane.upgrade()
 5359    }
 5360
 5361    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5362        self.panes
 5363            .iter()
 5364            .find(|pane| pane.entity_id() == entity_id)
 5365            .cloned()
 5366    }
 5367
 5368    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5369        self.follower_states.retain(|leader_id, state| {
 5370            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5371                for item in state.items_by_leader_view_id.values() {
 5372                    item.view.set_leader_id(None, window, cx);
 5373                }
 5374                false
 5375            } else {
 5376                true
 5377            }
 5378        });
 5379        cx.notify();
 5380    }
 5381
 5382    pub fn start_following(
 5383        &mut self,
 5384        leader_id: impl Into<CollaboratorId>,
 5385        window: &mut Window,
 5386        cx: &mut Context<Self>,
 5387    ) -> Option<Task<Result<()>>> {
 5388        let leader_id = leader_id.into();
 5389        let pane = self.active_pane().clone();
 5390
 5391        self.last_leaders_by_pane
 5392            .insert(pane.downgrade(), leader_id);
 5393        self.unfollow(leader_id, window, cx);
 5394        self.unfollow_in_pane(&pane, window, cx);
 5395        self.follower_states.insert(
 5396            leader_id,
 5397            FollowerState {
 5398                center_pane: pane.clone(),
 5399                dock_pane: None,
 5400                active_view_id: None,
 5401                items_by_leader_view_id: Default::default(),
 5402            },
 5403        );
 5404        cx.notify();
 5405
 5406        match leader_id {
 5407            CollaboratorId::PeerId(leader_peer_id) => {
 5408                let room_id = self.active_call()?.room_id(cx)?;
 5409                let project_id = self.project.read(cx).remote_id();
 5410                let request = self.app_state.client.request(proto::Follow {
 5411                    room_id,
 5412                    project_id,
 5413                    leader_id: Some(leader_peer_id),
 5414                });
 5415
 5416                Some(cx.spawn_in(window, async move |this, cx| {
 5417                    let response = request.await?;
 5418                    this.update(cx, |this, _| {
 5419                        let state = this
 5420                            .follower_states
 5421                            .get_mut(&leader_id)
 5422                            .context("following interrupted")?;
 5423                        state.active_view_id = response
 5424                            .active_view
 5425                            .as_ref()
 5426                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5427                        anyhow::Ok(())
 5428                    })??;
 5429                    if let Some(view) = response.active_view {
 5430                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5431                    }
 5432                    this.update_in(cx, |this, window, cx| {
 5433                        this.leader_updated(leader_id, window, cx)
 5434                    })?;
 5435                    Ok(())
 5436                }))
 5437            }
 5438            CollaboratorId::Agent => {
 5439                self.leader_updated(leader_id, window, cx)?;
 5440                Some(Task::ready(Ok(())))
 5441            }
 5442        }
 5443    }
 5444
 5445    pub fn follow_next_collaborator(
 5446        &mut self,
 5447        _: &FollowNextCollaborator,
 5448        window: &mut Window,
 5449        cx: &mut Context<Self>,
 5450    ) {
 5451        let collaborators = self.project.read(cx).collaborators();
 5452        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5453            let mut collaborators = collaborators.keys().copied();
 5454            for peer_id in collaborators.by_ref() {
 5455                if CollaboratorId::PeerId(peer_id) == leader_id {
 5456                    break;
 5457                }
 5458            }
 5459            collaborators.next().map(CollaboratorId::PeerId)
 5460        } else if let Some(last_leader_id) =
 5461            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5462        {
 5463            match last_leader_id {
 5464                CollaboratorId::PeerId(peer_id) => {
 5465                    if collaborators.contains_key(peer_id) {
 5466                        Some(*last_leader_id)
 5467                    } else {
 5468                        None
 5469                    }
 5470                }
 5471                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5472            }
 5473        } else {
 5474            None
 5475        };
 5476
 5477        let pane = self.active_pane.clone();
 5478        let Some(leader_id) = next_leader_id.or_else(|| {
 5479            Some(CollaboratorId::PeerId(
 5480                collaborators.keys().copied().next()?,
 5481            ))
 5482        }) else {
 5483            return;
 5484        };
 5485        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5486            return;
 5487        }
 5488        if let Some(task) = self.start_following(leader_id, window, cx) {
 5489            task.detach_and_log_err(cx)
 5490        }
 5491    }
 5492
 5493    pub fn follow(
 5494        &mut self,
 5495        leader_id: impl Into<CollaboratorId>,
 5496        window: &mut Window,
 5497        cx: &mut Context<Self>,
 5498    ) {
 5499        let leader_id = leader_id.into();
 5500
 5501        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5502            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5503                return;
 5504            };
 5505            let Some(remote_participant) =
 5506                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5507            else {
 5508                return;
 5509            };
 5510
 5511            let project = self.project.read(cx);
 5512
 5513            let other_project_id = match remote_participant.location {
 5514                ParticipantLocation::External => None,
 5515                ParticipantLocation::UnsharedProject => None,
 5516                ParticipantLocation::SharedProject { project_id } => {
 5517                    if Some(project_id) == project.remote_id() {
 5518                        None
 5519                    } else {
 5520                        Some(project_id)
 5521                    }
 5522                }
 5523            };
 5524
 5525            // if they are active in another project, follow there.
 5526            if let Some(project_id) = other_project_id {
 5527                let app_state = self.app_state.clone();
 5528                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5529                    .detach_and_log_err(cx);
 5530            }
 5531        }
 5532
 5533        // if you're already following, find the right pane and focus it.
 5534        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5535            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5536
 5537            return;
 5538        }
 5539
 5540        // Otherwise, follow.
 5541        if let Some(task) = self.start_following(leader_id, window, cx) {
 5542            task.detach_and_log_err(cx)
 5543        }
 5544    }
 5545
 5546    pub fn unfollow(
 5547        &mut self,
 5548        leader_id: impl Into<CollaboratorId>,
 5549        window: &mut Window,
 5550        cx: &mut Context<Self>,
 5551    ) -> Option<()> {
 5552        cx.notify();
 5553
 5554        let leader_id = leader_id.into();
 5555        let state = self.follower_states.remove(&leader_id)?;
 5556        for (_, item) in state.items_by_leader_view_id {
 5557            item.view.set_leader_id(None, window, cx);
 5558        }
 5559
 5560        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5561            let project_id = self.project.read(cx).remote_id();
 5562            let room_id = self.active_call()?.room_id(cx)?;
 5563            self.app_state
 5564                .client
 5565                .send(proto::Unfollow {
 5566                    room_id,
 5567                    project_id,
 5568                    leader_id: Some(leader_peer_id),
 5569                })
 5570                .log_err();
 5571        }
 5572
 5573        Some(())
 5574    }
 5575
 5576    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5577        self.follower_states.contains_key(&id.into())
 5578    }
 5579
 5580    fn active_item_path_changed(
 5581        &mut self,
 5582        focus_changed: bool,
 5583        window: &mut Window,
 5584        cx: &mut Context<Self>,
 5585    ) {
 5586        cx.emit(Event::ActiveItemChanged);
 5587        let active_entry = self.active_project_path(cx);
 5588        self.project.update(cx, |project, cx| {
 5589            project.set_active_path(active_entry.clone(), cx)
 5590        });
 5591
 5592        if focus_changed && let Some(project_path) = &active_entry {
 5593            let git_store_entity = self.project.read(cx).git_store().clone();
 5594            git_store_entity.update(cx, |git_store, cx| {
 5595                git_store.set_active_repo_for_path(project_path, cx);
 5596            });
 5597        }
 5598
 5599        self.update_window_title(window, cx);
 5600    }
 5601
 5602    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5603        let project = self.project().read(cx);
 5604        let mut title = String::new();
 5605
 5606        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5607            let name = {
 5608                let settings_location = SettingsLocation {
 5609                    worktree_id: worktree.read(cx).id(),
 5610                    path: RelPath::empty(),
 5611                };
 5612
 5613                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5614                match &settings.project_name {
 5615                    Some(name) => name.as_str(),
 5616                    None => worktree.read(cx).root_name_str(),
 5617                }
 5618            };
 5619            if i > 0 {
 5620                title.push_str(", ");
 5621            }
 5622            title.push_str(name);
 5623        }
 5624
 5625        if title.is_empty() {
 5626            title = "empty project".to_string();
 5627        }
 5628
 5629        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5630            let filename = path.path.file_name().or_else(|| {
 5631                Some(
 5632                    project
 5633                        .worktree_for_id(path.worktree_id, cx)?
 5634                        .read(cx)
 5635                        .root_name_str(),
 5636                )
 5637            });
 5638
 5639            if let Some(filename) = filename {
 5640                title.push_str("");
 5641                title.push_str(filename.as_ref());
 5642            }
 5643        }
 5644
 5645        if project.is_via_collab() {
 5646            title.push_str("");
 5647        } else if project.is_shared() {
 5648            title.push_str("");
 5649        }
 5650
 5651        if let Some(last_title) = self.last_window_title.as_ref()
 5652            && &title == last_title
 5653        {
 5654            return;
 5655        }
 5656        window.set_window_title(&title);
 5657        SystemWindowTabController::update_tab_title(
 5658            cx,
 5659            window.window_handle().window_id(),
 5660            SharedString::from(&title),
 5661        );
 5662        self.last_window_title = Some(title);
 5663    }
 5664
 5665    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5666        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5667        if is_edited != self.window_edited {
 5668            self.window_edited = is_edited;
 5669            window.set_window_edited(self.window_edited)
 5670        }
 5671    }
 5672
 5673    fn update_item_dirty_state(
 5674        &mut self,
 5675        item: &dyn ItemHandle,
 5676        window: &mut Window,
 5677        cx: &mut App,
 5678    ) {
 5679        let is_dirty = item.is_dirty(cx);
 5680        let item_id = item.item_id();
 5681        let was_dirty = self.dirty_items.contains_key(&item_id);
 5682        if is_dirty == was_dirty {
 5683            return;
 5684        }
 5685        if was_dirty {
 5686            self.dirty_items.remove(&item_id);
 5687            self.update_window_edited(window, cx);
 5688            return;
 5689        }
 5690
 5691        let workspace = self.weak_handle();
 5692        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5693            return;
 5694        };
 5695        let on_release_callback = Box::new(move |cx: &mut App| {
 5696            window_handle
 5697                .update(cx, |_, window, cx| {
 5698                    workspace
 5699                        .update(cx, |workspace, cx| {
 5700                            workspace.dirty_items.remove(&item_id);
 5701                            workspace.update_window_edited(window, cx)
 5702                        })
 5703                        .ok();
 5704                })
 5705                .ok();
 5706        });
 5707
 5708        let s = item.on_release(cx, on_release_callback);
 5709        self.dirty_items.insert(item_id, s);
 5710        self.update_window_edited(window, cx);
 5711    }
 5712
 5713    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5714        if self.notifications.is_empty() {
 5715            None
 5716        } else {
 5717            Some(
 5718                div()
 5719                    .absolute()
 5720                    .right_3()
 5721                    .bottom_3()
 5722                    .w_112()
 5723                    .h_full()
 5724                    .flex()
 5725                    .flex_col()
 5726                    .justify_end()
 5727                    .gap_2()
 5728                    .children(
 5729                        self.notifications
 5730                            .iter()
 5731                            .map(|(_, notification)| notification.clone().into_any()),
 5732                    ),
 5733            )
 5734        }
 5735    }
 5736
 5737    // RPC handlers
 5738
 5739    fn active_view_for_follower(
 5740        &self,
 5741        follower_project_id: Option<u64>,
 5742        window: &mut Window,
 5743        cx: &mut Context<Self>,
 5744    ) -> Option<proto::View> {
 5745        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5746        let item = item?;
 5747        let leader_id = self
 5748            .pane_for(&*item)
 5749            .and_then(|pane| self.leader_for_pane(&pane));
 5750        let leader_peer_id = match leader_id {
 5751            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5752            Some(CollaboratorId::Agent) | None => None,
 5753        };
 5754
 5755        let item_handle = item.to_followable_item_handle(cx)?;
 5756        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5757        let variant = item_handle.to_state_proto(window, cx)?;
 5758
 5759        if item_handle.is_project_item(window, cx)
 5760            && (follower_project_id.is_none()
 5761                || follower_project_id != self.project.read(cx).remote_id())
 5762        {
 5763            return None;
 5764        }
 5765
 5766        Some(proto::View {
 5767            id: id.to_proto(),
 5768            leader_id: leader_peer_id,
 5769            variant: Some(variant),
 5770            panel_id: panel_id.map(|id| id as i32),
 5771        })
 5772    }
 5773
 5774    fn handle_follow(
 5775        &mut self,
 5776        follower_project_id: Option<u64>,
 5777        window: &mut Window,
 5778        cx: &mut Context<Self>,
 5779    ) -> proto::FollowResponse {
 5780        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5781
 5782        cx.notify();
 5783        proto::FollowResponse {
 5784            views: active_view.iter().cloned().collect(),
 5785            active_view,
 5786        }
 5787    }
 5788
 5789    fn handle_update_followers(
 5790        &mut self,
 5791        leader_id: PeerId,
 5792        message: proto::UpdateFollowers,
 5793        _window: &mut Window,
 5794        _cx: &mut Context<Self>,
 5795    ) {
 5796        self.leader_updates_tx
 5797            .unbounded_send((leader_id, message))
 5798            .ok();
 5799    }
 5800
 5801    async fn process_leader_update(
 5802        this: &WeakEntity<Self>,
 5803        leader_id: PeerId,
 5804        update: proto::UpdateFollowers,
 5805        cx: &mut AsyncWindowContext,
 5806    ) -> Result<()> {
 5807        match update.variant.context("invalid update")? {
 5808            proto::update_followers::Variant::CreateView(view) => {
 5809                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5810                let should_add_view = this.update(cx, |this, _| {
 5811                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5812                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5813                    } else {
 5814                        anyhow::Ok(false)
 5815                    }
 5816                })??;
 5817
 5818                if should_add_view {
 5819                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5820                }
 5821            }
 5822            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5823                let should_add_view = this.update(cx, |this, _| {
 5824                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5825                        state.active_view_id = update_active_view
 5826                            .view
 5827                            .as_ref()
 5828                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5829
 5830                        if state.active_view_id.is_some_and(|view_id| {
 5831                            !state.items_by_leader_view_id.contains_key(&view_id)
 5832                        }) {
 5833                            anyhow::Ok(true)
 5834                        } else {
 5835                            anyhow::Ok(false)
 5836                        }
 5837                    } else {
 5838                        anyhow::Ok(false)
 5839                    }
 5840                })??;
 5841
 5842                if should_add_view && let Some(view) = update_active_view.view {
 5843                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5844                }
 5845            }
 5846            proto::update_followers::Variant::UpdateView(update_view) => {
 5847                let variant = update_view.variant.context("missing update view variant")?;
 5848                let id = update_view.id.context("missing update view id")?;
 5849                let mut tasks = Vec::new();
 5850                this.update_in(cx, |this, window, cx| {
 5851                    let project = this.project.clone();
 5852                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5853                        let view_id = ViewId::from_proto(id.clone())?;
 5854                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5855                            tasks.push(item.view.apply_update_proto(
 5856                                &project,
 5857                                variant.clone(),
 5858                                window,
 5859                                cx,
 5860                            ));
 5861                        }
 5862                    }
 5863                    anyhow::Ok(())
 5864                })??;
 5865                try_join_all(tasks).await.log_err();
 5866            }
 5867        }
 5868        this.update_in(cx, |this, window, cx| {
 5869            this.leader_updated(leader_id, window, cx)
 5870        })?;
 5871        Ok(())
 5872    }
 5873
 5874    async fn add_view_from_leader(
 5875        this: WeakEntity<Self>,
 5876        leader_id: PeerId,
 5877        view: &proto::View,
 5878        cx: &mut AsyncWindowContext,
 5879    ) -> Result<()> {
 5880        let this = this.upgrade().context("workspace dropped")?;
 5881
 5882        let Some(id) = view.id.clone() else {
 5883            anyhow::bail!("no id for view");
 5884        };
 5885        let id = ViewId::from_proto(id)?;
 5886        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5887
 5888        let pane = this.update(cx, |this, _cx| {
 5889            let state = this
 5890                .follower_states
 5891                .get(&leader_id.into())
 5892                .context("stopped following")?;
 5893            anyhow::Ok(state.pane().clone())
 5894        })?;
 5895        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5896            let client = this.read(cx).client().clone();
 5897            pane.items().find_map(|item| {
 5898                let item = item.to_followable_item_handle(cx)?;
 5899                if item.remote_id(&client, window, cx) == Some(id) {
 5900                    Some(item)
 5901                } else {
 5902                    None
 5903                }
 5904            })
 5905        })?;
 5906        let item = if let Some(existing_item) = existing_item {
 5907            existing_item
 5908        } else {
 5909            let variant = view.variant.clone();
 5910            anyhow::ensure!(variant.is_some(), "missing view variant");
 5911
 5912            let task = cx.update(|window, cx| {
 5913                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5914            })?;
 5915
 5916            let Some(task) = task else {
 5917                anyhow::bail!(
 5918                    "failed to construct view from leader (maybe from a different version of zed?)"
 5919                );
 5920            };
 5921
 5922            let mut new_item = task.await?;
 5923            pane.update_in(cx, |pane, window, cx| {
 5924                let mut item_to_remove = None;
 5925                for (ix, item) in pane.items().enumerate() {
 5926                    if let Some(item) = item.to_followable_item_handle(cx) {
 5927                        match new_item.dedup(item.as_ref(), window, cx) {
 5928                            Some(item::Dedup::KeepExisting) => {
 5929                                new_item =
 5930                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5931                                break;
 5932                            }
 5933                            Some(item::Dedup::ReplaceExisting) => {
 5934                                item_to_remove = Some((ix, item.item_id()));
 5935                                break;
 5936                            }
 5937                            None => {}
 5938                        }
 5939                    }
 5940                }
 5941
 5942                if let Some((ix, id)) = item_to_remove {
 5943                    pane.remove_item(id, false, false, window, cx);
 5944                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5945                }
 5946            })?;
 5947
 5948            new_item
 5949        };
 5950
 5951        this.update_in(cx, |this, window, cx| {
 5952            let state = this.follower_states.get_mut(&leader_id.into())?;
 5953            item.set_leader_id(Some(leader_id.into()), window, cx);
 5954            state.items_by_leader_view_id.insert(
 5955                id,
 5956                FollowerView {
 5957                    view: item,
 5958                    location: panel_id,
 5959                },
 5960            );
 5961
 5962            Some(())
 5963        })
 5964        .context("no follower state")?;
 5965
 5966        Ok(())
 5967    }
 5968
 5969    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5970        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5971            return;
 5972        };
 5973
 5974        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5975            let buffer_entity_id = agent_location.buffer.entity_id();
 5976            let view_id = ViewId {
 5977                creator: CollaboratorId::Agent,
 5978                id: buffer_entity_id.as_u64(),
 5979            };
 5980            follower_state.active_view_id = Some(view_id);
 5981
 5982            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5983                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5984                hash_map::Entry::Vacant(entry) => {
 5985                    let existing_view =
 5986                        follower_state
 5987                            .center_pane
 5988                            .read(cx)
 5989                            .items()
 5990                            .find_map(|item| {
 5991                                let item = item.to_followable_item_handle(cx)?;
 5992                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5993                                    && item.project_item_model_ids(cx).as_slice()
 5994                                        == [buffer_entity_id]
 5995                                {
 5996                                    Some(item)
 5997                                } else {
 5998                                    None
 5999                                }
 6000                            });
 6001                    let view = existing_view.or_else(|| {
 6002                        agent_location.buffer.upgrade().and_then(|buffer| {
 6003                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 6004                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 6005                            })?
 6006                            .to_followable_item_handle(cx)
 6007                        })
 6008                    });
 6009
 6010                    view.map(|view| {
 6011                        entry.insert(FollowerView {
 6012                            view,
 6013                            location: None,
 6014                        })
 6015                    })
 6016                }
 6017            };
 6018
 6019            if let Some(item) = item {
 6020                item.view
 6021                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 6022                item.view
 6023                    .update_agent_location(agent_location.position, window, cx);
 6024            }
 6025        } else {
 6026            follower_state.active_view_id = None;
 6027        }
 6028
 6029        self.leader_updated(CollaboratorId::Agent, window, cx);
 6030    }
 6031
 6032    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 6033        let mut is_project_item = true;
 6034        let mut update = proto::UpdateActiveView::default();
 6035        if window.is_window_active() {
 6036            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 6037
 6038            if let Some(item) = active_item
 6039                && item.item_focus_handle(cx).contains_focused(window, cx)
 6040            {
 6041                let leader_id = self
 6042                    .pane_for(&*item)
 6043                    .and_then(|pane| self.leader_for_pane(&pane));
 6044                let leader_peer_id = match leader_id {
 6045                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 6046                    Some(CollaboratorId::Agent) | None => None,
 6047                };
 6048
 6049                if let Some(item) = item.to_followable_item_handle(cx) {
 6050                    let id = item
 6051                        .remote_id(&self.app_state.client, window, cx)
 6052                        .map(|id| id.to_proto());
 6053
 6054                    if let Some(id) = id
 6055                        && let Some(variant) = item.to_state_proto(window, cx)
 6056                    {
 6057                        let view = Some(proto::View {
 6058                            id,
 6059                            leader_id: leader_peer_id,
 6060                            variant: Some(variant),
 6061                            panel_id: panel_id.map(|id| id as i32),
 6062                        });
 6063
 6064                        is_project_item = item.is_project_item(window, cx);
 6065                        update = proto::UpdateActiveView { view };
 6066                    };
 6067                }
 6068            }
 6069        }
 6070
 6071        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 6072        if active_view_id != self.last_active_view_id.as_ref() {
 6073            self.last_active_view_id = active_view_id.cloned();
 6074            self.update_followers(
 6075                is_project_item,
 6076                proto::update_followers::Variant::UpdateActiveView(update),
 6077                window,
 6078                cx,
 6079            );
 6080        }
 6081    }
 6082
 6083    fn active_item_for_followers(
 6084        &self,
 6085        window: &mut Window,
 6086        cx: &mut App,
 6087    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 6088        let mut active_item = None;
 6089        let mut panel_id = None;
 6090        for dock in self.all_docks() {
 6091            if dock.focus_handle(cx).contains_focused(window, cx)
 6092                && let Some(panel) = dock.read(cx).active_panel()
 6093                && let Some(pane) = panel.pane(cx)
 6094                && let Some(item) = pane.read(cx).active_item()
 6095            {
 6096                active_item = Some(item);
 6097                panel_id = panel.remote_id();
 6098                break;
 6099            }
 6100        }
 6101
 6102        if active_item.is_none() {
 6103            active_item = self.active_pane().read(cx).active_item();
 6104        }
 6105        (active_item, panel_id)
 6106    }
 6107
 6108    fn update_followers(
 6109        &self,
 6110        project_only: bool,
 6111        update: proto::update_followers::Variant,
 6112        _: &mut Window,
 6113        cx: &mut App,
 6114    ) -> Option<()> {
 6115        // If this update only applies to for followers in the current project,
 6116        // then skip it unless this project is shared. If it applies to all
 6117        // followers, regardless of project, then set `project_id` to none,
 6118        // indicating that it goes to all followers.
 6119        let project_id = if project_only {
 6120            Some(self.project.read(cx).remote_id()?)
 6121        } else {
 6122            None
 6123        };
 6124        self.app_state().workspace_store.update(cx, |store, cx| {
 6125            store.update_followers(project_id, update, cx)
 6126        })
 6127    }
 6128
 6129    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6130        self.follower_states.iter().find_map(|(leader_id, state)| {
 6131            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6132                Some(*leader_id)
 6133            } else {
 6134                None
 6135            }
 6136        })
 6137    }
 6138
 6139    fn leader_updated(
 6140        &mut self,
 6141        leader_id: impl Into<CollaboratorId>,
 6142        window: &mut Window,
 6143        cx: &mut Context<Self>,
 6144    ) -> Option<Box<dyn ItemHandle>> {
 6145        cx.notify();
 6146
 6147        let leader_id = leader_id.into();
 6148        let (panel_id, item) = match leader_id {
 6149            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6150            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6151        };
 6152
 6153        let state = self.follower_states.get(&leader_id)?;
 6154        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6155        let pane;
 6156        if let Some(panel_id) = panel_id {
 6157            pane = self
 6158                .activate_panel_for_proto_id(panel_id, window, cx)?
 6159                .pane(cx)?;
 6160            let state = self.follower_states.get_mut(&leader_id)?;
 6161            state.dock_pane = Some(pane.clone());
 6162        } else {
 6163            pane = state.center_pane.clone();
 6164            let state = self.follower_states.get_mut(&leader_id)?;
 6165            if let Some(dock_pane) = state.dock_pane.take() {
 6166                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6167            }
 6168        }
 6169
 6170        pane.update(cx, |pane, cx| {
 6171            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6172            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6173                pane.activate_item(index, false, false, window, cx);
 6174            } else {
 6175                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6176            }
 6177
 6178            if focus_active_item {
 6179                pane.focus_active_item(window, cx)
 6180            }
 6181        });
 6182
 6183        Some(item)
 6184    }
 6185
 6186    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6187        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6188        let active_view_id = state.active_view_id?;
 6189        Some(
 6190            state
 6191                .items_by_leader_view_id
 6192                .get(&active_view_id)?
 6193                .view
 6194                .boxed_clone(),
 6195        )
 6196    }
 6197
 6198    fn active_item_for_peer(
 6199        &self,
 6200        peer_id: PeerId,
 6201        window: &mut Window,
 6202        cx: &mut Context<Self>,
 6203    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6204        let call = self.active_call()?;
 6205        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6206        let leader_in_this_app;
 6207        let leader_in_this_project;
 6208        match participant.location {
 6209            ParticipantLocation::SharedProject { project_id } => {
 6210                leader_in_this_app = true;
 6211                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6212            }
 6213            ParticipantLocation::UnsharedProject => {
 6214                leader_in_this_app = true;
 6215                leader_in_this_project = false;
 6216            }
 6217            ParticipantLocation::External => {
 6218                leader_in_this_app = false;
 6219                leader_in_this_project = false;
 6220            }
 6221        };
 6222        let state = self.follower_states.get(&peer_id.into())?;
 6223        let mut item_to_activate = None;
 6224        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6225            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6226                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6227            {
 6228                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6229            }
 6230        } else if let Some(shared_screen) =
 6231            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6232        {
 6233            item_to_activate = Some((None, Box::new(shared_screen)));
 6234        }
 6235        item_to_activate
 6236    }
 6237
 6238    fn shared_screen_for_peer(
 6239        &self,
 6240        peer_id: PeerId,
 6241        pane: &Entity<Pane>,
 6242        window: &mut Window,
 6243        cx: &mut App,
 6244    ) -> Option<Entity<SharedScreen>> {
 6245        self.active_call()?
 6246            .create_shared_screen(peer_id, pane, window, cx)
 6247    }
 6248
 6249    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6250        if window.is_window_active() {
 6251            self.update_active_view_for_followers(window, cx);
 6252
 6253            if let Some(database_id) = self.database_id {
 6254                let db = WorkspaceDb::global(cx);
 6255                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6256                    .detach();
 6257            }
 6258        } else {
 6259            for pane in &self.panes {
 6260                pane.update(cx, |pane, cx| {
 6261                    if let Some(item) = pane.active_item() {
 6262                        item.workspace_deactivated(window, cx);
 6263                    }
 6264                    for item in pane.items() {
 6265                        if matches!(
 6266                            item.workspace_settings(cx).autosave,
 6267                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6268                        ) {
 6269                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6270                                .detach_and_log_err(cx);
 6271                        }
 6272                    }
 6273                });
 6274            }
 6275        }
 6276    }
 6277
 6278    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6279        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6280    }
 6281
 6282    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6283        self.active_call.as_ref().map(|(call, _)| call.clone())
 6284    }
 6285
 6286    fn on_active_call_event(
 6287        &mut self,
 6288        event: &ActiveCallEvent,
 6289        window: &mut Window,
 6290        cx: &mut Context<Self>,
 6291    ) {
 6292        match event {
 6293            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6294            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6295                self.leader_updated(participant_id, window, cx);
 6296            }
 6297        }
 6298    }
 6299
 6300    pub fn database_id(&self) -> Option<WorkspaceId> {
 6301        self.database_id
 6302    }
 6303
 6304    #[cfg(any(test, feature = "test-support"))]
 6305    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6306        self.database_id = Some(id);
 6307    }
 6308
 6309    pub fn session_id(&self) -> Option<String> {
 6310        self.session_id.clone()
 6311    }
 6312
 6313    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6314        let Some(display) = window.display(cx) else {
 6315            return Task::ready(());
 6316        };
 6317        let Ok(display_uuid) = display.uuid() else {
 6318            return Task::ready(());
 6319        };
 6320
 6321        let window_bounds = window.inner_window_bounds();
 6322        let database_id = self.database_id;
 6323        let has_paths = !self.root_paths(cx).is_empty();
 6324        let db = WorkspaceDb::global(cx);
 6325        let kvp = db::kvp::KeyValueStore::global(cx);
 6326
 6327        cx.background_executor().spawn(async move {
 6328            if !has_paths {
 6329                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6330                    .await
 6331                    .log_err();
 6332            }
 6333            if let Some(database_id) = database_id {
 6334                db.set_window_open_status(
 6335                    database_id,
 6336                    SerializedWindowBounds(window_bounds),
 6337                    display_uuid,
 6338                )
 6339                .await
 6340                .log_err();
 6341            } else {
 6342                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6343                    .await
 6344                    .log_err();
 6345            }
 6346        })
 6347    }
 6348
 6349    /// Bypass the 200ms serialization throttle and write workspace state to
 6350    /// the DB immediately. Returns a task the caller can await to ensure the
 6351    /// write completes. Used by the quit handler so the most recent state
 6352    /// isn't lost to a pending throttle timer when the process exits.
 6353    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6354        self._schedule_serialize_workspace.take();
 6355        self._serialize_workspace_task.take();
 6356        self.bounds_save_task_queued.take();
 6357
 6358        let bounds_task = self.save_window_bounds(window, cx);
 6359        let serialize_task = self.serialize_workspace_internal(window, cx);
 6360        cx.spawn(async move |_| {
 6361            bounds_task.await;
 6362            serialize_task.await;
 6363        })
 6364    }
 6365
 6366    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6367        let project = self.project().read(cx);
 6368        project
 6369            .visible_worktrees(cx)
 6370            .map(|worktree| worktree.read(cx).abs_path())
 6371            .collect::<Vec<_>>()
 6372    }
 6373
 6374    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6375        match member {
 6376            Member::Axis(PaneAxis { members, .. }) => {
 6377                for child in members.iter() {
 6378                    self.remove_panes(child.clone(), window, cx)
 6379                }
 6380            }
 6381            Member::Pane(pane) => {
 6382                self.force_remove_pane(&pane, &None, window, cx);
 6383            }
 6384        }
 6385    }
 6386
 6387    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6388        self.session_id.take();
 6389        self.serialize_workspace_internal(window, cx)
 6390    }
 6391
 6392    fn force_remove_pane(
 6393        &mut self,
 6394        pane: &Entity<Pane>,
 6395        focus_on: &Option<Entity<Pane>>,
 6396        window: &mut Window,
 6397        cx: &mut Context<Workspace>,
 6398    ) {
 6399        self.panes.retain(|p| p != pane);
 6400        if let Some(focus_on) = focus_on {
 6401            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6402        } else if self.active_pane() == pane {
 6403            self.panes
 6404                .last()
 6405                .unwrap()
 6406                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6407        }
 6408        if self.last_active_center_pane == Some(pane.downgrade()) {
 6409            self.last_active_center_pane = None;
 6410        }
 6411        cx.notify();
 6412    }
 6413
 6414    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6415        if self._schedule_serialize_workspace.is_none() {
 6416            self._schedule_serialize_workspace =
 6417                Some(cx.spawn_in(window, async move |this, cx| {
 6418                    cx.background_executor()
 6419                        .timer(SERIALIZATION_THROTTLE_TIME)
 6420                        .await;
 6421                    this.update_in(cx, |this, window, cx| {
 6422                        this._serialize_workspace_task =
 6423                            Some(this.serialize_workspace_internal(window, cx));
 6424                        this._schedule_serialize_workspace.take();
 6425                    })
 6426                    .log_err();
 6427                }));
 6428        }
 6429    }
 6430
 6431    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6432        let Some(database_id) = self.database_id() else {
 6433            return Task::ready(());
 6434        };
 6435
 6436        fn serialize_pane_handle(
 6437            pane_handle: &Entity<Pane>,
 6438            window: &mut Window,
 6439            cx: &mut App,
 6440        ) -> SerializedPane {
 6441            let (items, active, pinned_count) = {
 6442                let pane = pane_handle.read(cx);
 6443                let active_item_id = pane.active_item().map(|item| item.item_id());
 6444                (
 6445                    pane.items()
 6446                        .filter_map(|handle| {
 6447                            let handle = handle.to_serializable_item_handle(cx)?;
 6448
 6449                            Some(SerializedItem {
 6450                                kind: Arc::from(handle.serialized_item_kind()),
 6451                                item_id: handle.item_id().as_u64(),
 6452                                active: Some(handle.item_id()) == active_item_id,
 6453                                preview: pane.is_active_preview_item(handle.item_id()),
 6454                            })
 6455                        })
 6456                        .collect::<Vec<_>>(),
 6457                    pane.has_focus(window, cx),
 6458                    pane.pinned_count(),
 6459                )
 6460            };
 6461
 6462            SerializedPane::new(items, active, pinned_count)
 6463        }
 6464
 6465        fn build_serialized_pane_group(
 6466            pane_group: &Member,
 6467            window: &mut Window,
 6468            cx: &mut App,
 6469        ) -> SerializedPaneGroup {
 6470            match pane_group {
 6471                Member::Axis(PaneAxis {
 6472                    axis,
 6473                    members,
 6474                    flexes,
 6475                    bounding_boxes: _,
 6476                }) => SerializedPaneGroup::Group {
 6477                    axis: SerializedAxis(*axis),
 6478                    children: members
 6479                        .iter()
 6480                        .map(|member| build_serialized_pane_group(member, window, cx))
 6481                        .collect::<Vec<_>>(),
 6482                    flexes: Some(flexes.lock().clone()),
 6483                },
 6484                Member::Pane(pane_handle) => {
 6485                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6486                }
 6487            }
 6488        }
 6489
 6490        fn build_serialized_docks(
 6491            this: &Workspace,
 6492            window: &mut Window,
 6493            cx: &mut App,
 6494        ) -> DockStructure {
 6495            this.capture_dock_state(window, cx)
 6496        }
 6497
 6498        match self.workspace_location(cx) {
 6499            WorkspaceLocation::Location(location, paths) => {
 6500                let breakpoints = self.project.update(cx, |project, cx| {
 6501                    project
 6502                        .breakpoint_store()
 6503                        .read(cx)
 6504                        .all_source_breakpoints(cx)
 6505                });
 6506                let user_toolchains = self
 6507                    .project
 6508                    .read(cx)
 6509                    .user_toolchains(cx)
 6510                    .unwrap_or_default();
 6511
 6512                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6513                let docks = build_serialized_docks(self, window, cx);
 6514                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6515
 6516                let serialized_workspace = SerializedWorkspace {
 6517                    id: database_id,
 6518                    location,
 6519                    paths,
 6520                    center_group,
 6521                    window_bounds,
 6522                    display: Default::default(),
 6523                    docks,
 6524                    centered_layout: self.centered_layout,
 6525                    session_id: self.session_id.clone(),
 6526                    breakpoints,
 6527                    window_id: Some(window.window_handle().window_id().as_u64()),
 6528                    user_toolchains,
 6529                };
 6530
 6531                let db = WorkspaceDb::global(cx);
 6532                window.spawn(cx, async move |_| {
 6533                    db.save_workspace(serialized_workspace).await;
 6534                })
 6535            }
 6536            WorkspaceLocation::DetachFromSession => {
 6537                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6538                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6539                // Save dock state for empty local workspaces
 6540                let docks = build_serialized_docks(self, window, cx);
 6541                let db = WorkspaceDb::global(cx);
 6542                let kvp = db::kvp::KeyValueStore::global(cx);
 6543                window.spawn(cx, async move |_| {
 6544                    db.set_window_open_status(
 6545                        database_id,
 6546                        window_bounds,
 6547                        display.unwrap_or_default(),
 6548                    )
 6549                    .await
 6550                    .log_err();
 6551                    db.set_session_id(database_id, None).await.log_err();
 6552                    persistence::write_default_dock_state(&kvp, docks)
 6553                        .await
 6554                        .log_err();
 6555                })
 6556            }
 6557            WorkspaceLocation::None => {
 6558                // Save dock state for empty non-local workspaces
 6559                let docks = build_serialized_docks(self, window, cx);
 6560                let kvp = db::kvp::KeyValueStore::global(cx);
 6561                window.spawn(cx, async move |_| {
 6562                    persistence::write_default_dock_state(&kvp, docks)
 6563                        .await
 6564                        .log_err();
 6565                })
 6566            }
 6567        }
 6568    }
 6569
 6570    fn has_any_items_open(&self, cx: &App) -> bool {
 6571        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6572    }
 6573
 6574    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6575        let paths = PathList::new(&self.root_paths(cx));
 6576        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6577            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6578        } else if self.project.read(cx).is_local() {
 6579            if !paths.is_empty() || self.has_any_items_open(cx) {
 6580                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6581            } else {
 6582                WorkspaceLocation::DetachFromSession
 6583            }
 6584        } else {
 6585            WorkspaceLocation::None
 6586        }
 6587    }
 6588
 6589    fn update_history(&self, cx: &mut App) {
 6590        let Some(id) = self.database_id() else {
 6591            return;
 6592        };
 6593        if !self.project.read(cx).is_local() {
 6594            return;
 6595        }
 6596        if let Some(manager) = HistoryManager::global(cx) {
 6597            let paths = PathList::new(&self.root_paths(cx));
 6598            manager.update(cx, |this, cx| {
 6599                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6600            });
 6601        }
 6602    }
 6603
 6604    async fn serialize_items(
 6605        this: &WeakEntity<Self>,
 6606        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6607        cx: &mut AsyncWindowContext,
 6608    ) -> Result<()> {
 6609        const CHUNK_SIZE: usize = 200;
 6610
 6611        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6612
 6613        while let Some(items_received) = serializable_items.next().await {
 6614            let unique_items =
 6615                items_received
 6616                    .into_iter()
 6617                    .fold(HashMap::default(), |mut acc, item| {
 6618                        acc.entry(item.item_id()).or_insert(item);
 6619                        acc
 6620                    });
 6621
 6622            // We use into_iter() here so that the references to the items are moved into
 6623            // the tasks and not kept alive while we're sleeping.
 6624            for (_, item) in unique_items.into_iter() {
 6625                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6626                    item.serialize(workspace, false, window, cx)
 6627                }) {
 6628                    cx.background_spawn(async move { task.await.log_err() })
 6629                        .detach();
 6630                }
 6631            }
 6632
 6633            cx.background_executor()
 6634                .timer(SERIALIZATION_THROTTLE_TIME)
 6635                .await;
 6636        }
 6637
 6638        Ok(())
 6639    }
 6640
 6641    pub(crate) fn enqueue_item_serialization(
 6642        &mut self,
 6643        item: Box<dyn SerializableItemHandle>,
 6644    ) -> Result<()> {
 6645        self.serializable_items_tx
 6646            .unbounded_send(item)
 6647            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6648    }
 6649
 6650    pub(crate) fn load_workspace(
 6651        serialized_workspace: SerializedWorkspace,
 6652        paths_to_open: Vec<Option<ProjectPath>>,
 6653        window: &mut Window,
 6654        cx: &mut Context<Workspace>,
 6655    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6656        cx.spawn_in(window, async move |workspace, cx| {
 6657            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6658
 6659            let mut center_group = None;
 6660            let mut center_items = None;
 6661
 6662            // Traverse the splits tree and add to things
 6663            if let Some((group, active_pane, items)) = serialized_workspace
 6664                .center_group
 6665                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6666                .await
 6667            {
 6668                center_items = Some(items);
 6669                center_group = Some((group, active_pane))
 6670            }
 6671
 6672            let mut items_by_project_path = HashMap::default();
 6673            let mut item_ids_by_kind = HashMap::default();
 6674            let mut all_deserialized_items = Vec::default();
 6675            cx.update(|_, cx| {
 6676                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6677                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6678                        item_ids_by_kind
 6679                            .entry(serializable_item_handle.serialized_item_kind())
 6680                            .or_insert(Vec::new())
 6681                            .push(item.item_id().as_u64() as ItemId);
 6682                    }
 6683
 6684                    if let Some(project_path) = item.project_path(cx) {
 6685                        items_by_project_path.insert(project_path, item.clone());
 6686                    }
 6687                    all_deserialized_items.push(item);
 6688                }
 6689            })?;
 6690
 6691            let opened_items = paths_to_open
 6692                .into_iter()
 6693                .map(|path_to_open| {
 6694                    path_to_open
 6695                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6696                })
 6697                .collect::<Vec<_>>();
 6698
 6699            // Remove old panes from workspace panes list
 6700            workspace.update_in(cx, |workspace, window, cx| {
 6701                if let Some((center_group, active_pane)) = center_group {
 6702                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6703
 6704                    // Swap workspace center group
 6705                    workspace.center = PaneGroup::with_root(center_group);
 6706                    workspace.center.set_is_center(true);
 6707                    workspace.center.mark_positions(cx);
 6708
 6709                    if let Some(active_pane) = active_pane {
 6710                        workspace.set_active_pane(&active_pane, window, cx);
 6711                        cx.focus_self(window);
 6712                    } else {
 6713                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6714                    }
 6715                }
 6716
 6717                let docks = serialized_workspace.docks;
 6718
 6719                for (dock, serialized_dock) in [
 6720                    (&mut workspace.right_dock, docks.right),
 6721                    (&mut workspace.left_dock, docks.left),
 6722                    (&mut workspace.bottom_dock, docks.bottom),
 6723                ]
 6724                .iter_mut()
 6725                {
 6726                    dock.update(cx, |dock, cx| {
 6727                        dock.serialized_dock = Some(serialized_dock.clone());
 6728                        dock.restore_state(window, cx);
 6729                    });
 6730                }
 6731
 6732                cx.notify();
 6733            })?;
 6734
 6735            let _ = project
 6736                .update(cx, |project, cx| {
 6737                    project
 6738                        .breakpoint_store()
 6739                        .update(cx, |breakpoint_store, cx| {
 6740                            breakpoint_store
 6741                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6742                        })
 6743                })
 6744                .await;
 6745
 6746            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6747            // after loading the items, we might have different items and in order to avoid
 6748            // the database filling up, we delete items that haven't been loaded now.
 6749            //
 6750            // The items that have been loaded, have been saved after they've been added to the workspace.
 6751            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6752                item_ids_by_kind
 6753                    .into_iter()
 6754                    .map(|(item_kind, loaded_items)| {
 6755                        SerializableItemRegistry::cleanup(
 6756                            item_kind,
 6757                            serialized_workspace.id,
 6758                            loaded_items,
 6759                            window,
 6760                            cx,
 6761                        )
 6762                        .log_err()
 6763                    })
 6764                    .collect::<Vec<_>>()
 6765            })?;
 6766
 6767            futures::future::join_all(clean_up_tasks).await;
 6768
 6769            workspace
 6770                .update_in(cx, |workspace, window, cx| {
 6771                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6772                    workspace.serialize_workspace_internal(window, cx).detach();
 6773
 6774                    // Ensure that we mark the window as edited if we did load dirty items
 6775                    workspace.update_window_edited(window, cx);
 6776                })
 6777                .ok();
 6778
 6779            Ok(opened_items)
 6780        })
 6781    }
 6782
 6783    pub fn key_context(&self, cx: &App) -> KeyContext {
 6784        let mut context = KeyContext::new_with_defaults();
 6785        context.add("Workspace");
 6786        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6787        if let Some(status) = self
 6788            .debugger_provider
 6789            .as_ref()
 6790            .and_then(|provider| provider.active_thread_state(cx))
 6791        {
 6792            match status {
 6793                ThreadStatus::Running | ThreadStatus::Stepping => {
 6794                    context.add("debugger_running");
 6795                }
 6796                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6797                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6798            }
 6799        }
 6800
 6801        if self.left_dock.read(cx).is_open() {
 6802            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6803                context.set("left_dock", active_panel.panel_key());
 6804            }
 6805        }
 6806
 6807        if self.right_dock.read(cx).is_open() {
 6808            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6809                context.set("right_dock", active_panel.panel_key());
 6810            }
 6811        }
 6812
 6813        if self.bottom_dock.read(cx).is_open() {
 6814            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6815                context.set("bottom_dock", active_panel.panel_key());
 6816            }
 6817        }
 6818
 6819        context
 6820    }
 6821
 6822    /// Multiworkspace uses this to add workspace action handling to itself
 6823    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6824        self.add_workspace_actions_listeners(div, window, cx)
 6825            .on_action(cx.listener(
 6826                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6827                    for action in &action_sequence.0 {
 6828                        window.dispatch_action(action.boxed_clone(), cx);
 6829                    }
 6830                },
 6831            ))
 6832            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6833            .on_action(cx.listener(Self::close_all_items_and_panes))
 6834            .on_action(cx.listener(Self::close_item_in_all_panes))
 6835            .on_action(cx.listener(Self::save_all))
 6836            .on_action(cx.listener(Self::send_keystrokes))
 6837            .on_action(cx.listener(Self::add_folder_to_project))
 6838            .on_action(cx.listener(Self::follow_next_collaborator))
 6839            .on_action(cx.listener(Self::activate_pane_at_index))
 6840            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6841            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6842            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6843            .on_action(cx.listener(Self::toggle_theme_mode))
 6844            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6845                let pane = workspace.active_pane().clone();
 6846                workspace.unfollow_in_pane(&pane, window, cx);
 6847            }))
 6848            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6849                workspace
 6850                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6851                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6852            }))
 6853            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6854                workspace
 6855                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6856                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6857            }))
 6858            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6859                workspace
 6860                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6861                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6862            }))
 6863            .on_action(
 6864                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6865                    workspace.activate_previous_pane(window, cx)
 6866                }),
 6867            )
 6868            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6869                workspace.activate_next_pane(window, cx)
 6870            }))
 6871            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6872                workspace.activate_last_pane(window, cx)
 6873            }))
 6874            .on_action(
 6875                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6876                    workspace.activate_next_window(cx)
 6877                }),
 6878            )
 6879            .on_action(
 6880                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6881                    workspace.activate_previous_window(cx)
 6882                }),
 6883            )
 6884            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6885                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6886            }))
 6887            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6888                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6889            }))
 6890            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6891                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6892            }))
 6893            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6894                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6895            }))
 6896            .on_action(cx.listener(
 6897                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6898                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6899                },
 6900            ))
 6901            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6902                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6903            }))
 6904            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6905                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6906            }))
 6907            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6908                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6909            }))
 6910            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6911                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6912            }))
 6913            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6914                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6915                    SplitDirection::Down,
 6916                    SplitDirection::Up,
 6917                    SplitDirection::Right,
 6918                    SplitDirection::Left,
 6919                ];
 6920                for dir in DIRECTION_PRIORITY {
 6921                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6922                        workspace.swap_pane_in_direction(dir, cx);
 6923                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6924                        break;
 6925                    }
 6926                }
 6927            }))
 6928            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6929                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6930            }))
 6931            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6932                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6933            }))
 6934            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6935                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6936            }))
 6937            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6938                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6939            }))
 6940            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6941                this.toggle_dock(DockPosition::Left, window, cx);
 6942            }))
 6943            .on_action(cx.listener(
 6944                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6945                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6946                },
 6947            ))
 6948            .on_action(cx.listener(
 6949                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6950                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6951                },
 6952            ))
 6953            .on_action(cx.listener(
 6954                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6955                    if !workspace.close_active_dock(window, cx) {
 6956                        cx.propagate();
 6957                    }
 6958                },
 6959            ))
 6960            .on_action(
 6961                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6962                    workspace.close_all_docks(window, cx);
 6963                }),
 6964            )
 6965            .on_action(cx.listener(Self::toggle_all_docks))
 6966            .on_action(cx.listener(
 6967                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6968                    workspace.clear_all_notifications(cx);
 6969                },
 6970            ))
 6971            .on_action(cx.listener(
 6972                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6973                    workspace.clear_navigation_history(window, cx);
 6974                },
 6975            ))
 6976            .on_action(cx.listener(
 6977                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6978                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6979                        workspace.suppress_notification(&notification_id, cx);
 6980                    }
 6981                },
 6982            ))
 6983            .on_action(cx.listener(
 6984                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6985                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6986                },
 6987            ))
 6988            .on_action(
 6989                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6990                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6991                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6992                            trusted_worktrees.clear_trusted_paths()
 6993                        });
 6994                        let db = WorkspaceDb::global(cx);
 6995                        cx.spawn(async move |_, cx| {
 6996                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 6997                                cx.update(|cx| reload(cx));
 6998                            }
 6999                        })
 7000                        .detach();
 7001                    }
 7002                }),
 7003            )
 7004            .on_action(cx.listener(
 7005                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 7006                    workspace.reopen_closed_item(window, cx).detach();
 7007                },
 7008            ))
 7009            .on_action(cx.listener(
 7010                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 7011                    for dock in workspace.all_docks() {
 7012                        if dock.focus_handle(cx).contains_focused(window, cx) {
 7013                            let panel = dock.read(cx).active_panel().cloned();
 7014                            if let Some(panel) = panel {
 7015                                dock.update(cx, |dock, cx| {
 7016                                    dock.set_panel_size_state(
 7017                                        panel.as_ref(),
 7018                                        dock::PanelSizeState::default(),
 7019                                        cx,
 7020                                    );
 7021                                });
 7022                            }
 7023                            return;
 7024                        }
 7025                    }
 7026                },
 7027            ))
 7028            .on_action(cx.listener(
 7029                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 7030                    for dock in workspace.all_docks() {
 7031                        let panel = dock.read(cx).visible_panel().cloned();
 7032                        if let Some(panel) = panel {
 7033                            dock.update(cx, |dock, cx| {
 7034                                dock.set_panel_size_state(
 7035                                    panel.as_ref(),
 7036                                    dock::PanelSizeState::default(),
 7037                                    cx,
 7038                                );
 7039                            });
 7040                        }
 7041                    }
 7042                },
 7043            ))
 7044            .on_action(cx.listener(
 7045                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 7046                    adjust_active_dock_size_by_px(
 7047                        px_with_ui_font_fallback(act.px, cx),
 7048                        workspace,
 7049                        window,
 7050                        cx,
 7051                    );
 7052                },
 7053            ))
 7054            .on_action(cx.listener(
 7055                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 7056                    adjust_active_dock_size_by_px(
 7057                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7058                        workspace,
 7059                        window,
 7060                        cx,
 7061                    );
 7062                },
 7063            ))
 7064            .on_action(cx.listener(
 7065                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 7066                    adjust_open_docks_size_by_px(
 7067                        px_with_ui_font_fallback(act.px, cx),
 7068                        workspace,
 7069                        window,
 7070                        cx,
 7071                    );
 7072                },
 7073            ))
 7074            .on_action(cx.listener(
 7075                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 7076                    adjust_open_docks_size_by_px(
 7077                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7078                        workspace,
 7079                        window,
 7080                        cx,
 7081                    );
 7082                },
 7083            ))
 7084            .on_action(cx.listener(Workspace::toggle_centered_layout))
 7085            .on_action(cx.listener(
 7086                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 7087                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7088                        let dock = active_dock.read(cx);
 7089                        if let Some(active_panel) = dock.active_panel() {
 7090                            if active_panel.pane(cx).is_none() {
 7091                                let mut recent_pane: Option<Entity<Pane>> = None;
 7092                                let mut recent_timestamp = 0;
 7093                                for pane_handle in workspace.panes() {
 7094                                    let pane = pane_handle.read(cx);
 7095                                    for entry in pane.activation_history() {
 7096                                        if entry.timestamp > recent_timestamp {
 7097                                            recent_timestamp = entry.timestamp;
 7098                                            recent_pane = Some(pane_handle.clone());
 7099                                        }
 7100                                    }
 7101                                }
 7102
 7103                                if let Some(pane) = recent_pane {
 7104                                    pane.update(cx, |pane, cx| {
 7105                                        let current_index = pane.active_item_index();
 7106                                        let items_len = pane.items_len();
 7107                                        if items_len > 0 {
 7108                                            let next_index = if current_index + 1 < items_len {
 7109                                                current_index + 1
 7110                                            } else {
 7111                                                0
 7112                                            };
 7113                                            pane.activate_item(
 7114                                                next_index, false, false, window, cx,
 7115                                            );
 7116                                        }
 7117                                    });
 7118                                    return;
 7119                                }
 7120                            }
 7121                        }
 7122                    }
 7123                    cx.propagate();
 7124                },
 7125            ))
 7126            .on_action(cx.listener(
 7127                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 7128                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7129                        let dock = active_dock.read(cx);
 7130                        if let Some(active_panel) = dock.active_panel() {
 7131                            if active_panel.pane(cx).is_none() {
 7132                                let mut recent_pane: Option<Entity<Pane>> = None;
 7133                                let mut recent_timestamp = 0;
 7134                                for pane_handle in workspace.panes() {
 7135                                    let pane = pane_handle.read(cx);
 7136                                    for entry in pane.activation_history() {
 7137                                        if entry.timestamp > recent_timestamp {
 7138                                            recent_timestamp = entry.timestamp;
 7139                                            recent_pane = Some(pane_handle.clone());
 7140                                        }
 7141                                    }
 7142                                }
 7143
 7144                                if let Some(pane) = recent_pane {
 7145                                    pane.update(cx, |pane, cx| {
 7146                                        let current_index = pane.active_item_index();
 7147                                        let items_len = pane.items_len();
 7148                                        if items_len > 0 {
 7149                                            let prev_index = if current_index > 0 {
 7150                                                current_index - 1
 7151                                            } else {
 7152                                                items_len.saturating_sub(1)
 7153                                            };
 7154                                            pane.activate_item(
 7155                                                prev_index, false, false, window, cx,
 7156                                            );
 7157                                        }
 7158                                    });
 7159                                    return;
 7160                                }
 7161                            }
 7162                        }
 7163                    }
 7164                    cx.propagate();
 7165                },
 7166            ))
 7167            .on_action(cx.listener(
 7168                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7169                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7170                        let dock = active_dock.read(cx);
 7171                        if let Some(active_panel) = dock.active_panel() {
 7172                            if active_panel.pane(cx).is_none() {
 7173                                let active_pane = workspace.active_pane().clone();
 7174                                active_pane.update(cx, |pane, cx| {
 7175                                    pane.close_active_item(action, window, cx)
 7176                                        .detach_and_log_err(cx);
 7177                                });
 7178                                return;
 7179                            }
 7180                        }
 7181                    }
 7182                    cx.propagate();
 7183                },
 7184            ))
 7185            .on_action(
 7186                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7187                    let pane = workspace.active_pane().clone();
 7188                    if let Some(item) = pane.read(cx).active_item() {
 7189                        item.toggle_read_only(window, cx);
 7190                    }
 7191                }),
 7192            )
 7193            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7194                workspace.focus_center_pane(window, cx);
 7195            }))
 7196            .on_action(cx.listener(Workspace::cancel))
 7197    }
 7198
 7199    #[cfg(any(test, feature = "test-support"))]
 7200    pub fn set_random_database_id(&mut self) {
 7201        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7202    }
 7203
 7204    #[cfg(any(test, feature = "test-support"))]
 7205    pub(crate) fn test_new(
 7206        project: Entity<Project>,
 7207        window: &mut Window,
 7208        cx: &mut Context<Self>,
 7209    ) -> Self {
 7210        use node_runtime::NodeRuntime;
 7211        use session::Session;
 7212
 7213        let client = project.read(cx).client();
 7214        let user_store = project.read(cx).user_store();
 7215        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7216        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7217        window.activate_window();
 7218        let app_state = Arc::new(AppState {
 7219            languages: project.read(cx).languages().clone(),
 7220            workspace_store,
 7221            client,
 7222            user_store,
 7223            fs: project.read(cx).fs().clone(),
 7224            build_window_options: |_, _| Default::default(),
 7225            node_runtime: NodeRuntime::unavailable(),
 7226            session,
 7227        });
 7228        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7229        workspace
 7230            .active_pane
 7231            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7232        workspace
 7233    }
 7234
 7235    pub fn register_action<A: Action>(
 7236        &mut self,
 7237        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7238    ) -> &mut Self {
 7239        let callback = Arc::new(callback);
 7240
 7241        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7242            let callback = callback.clone();
 7243            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7244                (callback)(workspace, event, window, cx)
 7245            }))
 7246        }));
 7247        self
 7248    }
 7249    pub fn register_action_renderer(
 7250        &mut self,
 7251        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7252    ) -> &mut Self {
 7253        self.workspace_actions.push(Box::new(callback));
 7254        self
 7255    }
 7256
 7257    fn add_workspace_actions_listeners(
 7258        &self,
 7259        mut div: Div,
 7260        window: &mut Window,
 7261        cx: &mut Context<Self>,
 7262    ) -> Div {
 7263        for action in self.workspace_actions.iter() {
 7264            div = (action)(div, self, window, cx)
 7265        }
 7266        div
 7267    }
 7268
 7269    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7270        self.modal_layer.read(cx).has_active_modal()
 7271    }
 7272
 7273    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7274        self.modal_layer
 7275            .read(cx)
 7276            .is_active_modal_command_palette(cx)
 7277    }
 7278
 7279    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7280        self.modal_layer.read(cx).active_modal()
 7281    }
 7282
 7283    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7284    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7285    /// If no modal is active, the new modal will be shown.
 7286    ///
 7287    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7288    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7289    /// will not be shown.
 7290    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7291    where
 7292        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7293    {
 7294        self.modal_layer.update(cx, |modal_layer, cx| {
 7295            modal_layer.toggle_modal(window, cx, build)
 7296        })
 7297    }
 7298
 7299    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7300        self.modal_layer
 7301            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7302    }
 7303
 7304    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7305        self.toast_layer
 7306            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7307    }
 7308
 7309    pub fn toggle_centered_layout(
 7310        &mut self,
 7311        _: &ToggleCenteredLayout,
 7312        _: &mut Window,
 7313        cx: &mut Context<Self>,
 7314    ) {
 7315        self.centered_layout = !self.centered_layout;
 7316        if let Some(database_id) = self.database_id() {
 7317            let db = WorkspaceDb::global(cx);
 7318            let centered_layout = self.centered_layout;
 7319            cx.background_spawn(async move {
 7320                db.set_centered_layout(database_id, centered_layout).await
 7321            })
 7322            .detach_and_log_err(cx);
 7323        }
 7324        cx.notify();
 7325    }
 7326
 7327    fn adjust_padding(padding: Option<f32>) -> f32 {
 7328        padding
 7329            .unwrap_or(CenteredPaddingSettings::default().0)
 7330            .clamp(
 7331                CenteredPaddingSettings::MIN_PADDING,
 7332                CenteredPaddingSettings::MAX_PADDING,
 7333            )
 7334    }
 7335
 7336    fn render_dock(
 7337        &self,
 7338        position: DockPosition,
 7339        dock: &Entity<Dock>,
 7340        window: &mut Window,
 7341        cx: &mut App,
 7342    ) -> Option<Div> {
 7343        if self.zoomed_position == Some(position) {
 7344            return None;
 7345        }
 7346
 7347        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7348            let pane = panel.pane(cx)?;
 7349            let follower_states = &self.follower_states;
 7350            leader_border_for_pane(follower_states, &pane, window, cx)
 7351        });
 7352
 7353        let mut container = div()
 7354            .flex()
 7355            .overflow_hidden()
 7356            .flex_none()
 7357            .child(dock.clone())
 7358            .children(leader_border);
 7359
 7360        // Apply sizing only when the dock is open. When closed the dock is still
 7361        // included in the element tree so its focus handle remains mounted — without
 7362        // this, toggle_panel_focus cannot focus the panel when the dock is closed.
 7363        let dock = dock.read(cx);
 7364        if let Some(panel) = dock.visible_panel() {
 7365            let size_state = dock.stored_panel_size_state(panel.as_ref());
 7366            if position.axis() == Axis::Horizontal {
 7367                let use_flexible = panel.has_flexible_size(window, cx);
 7368                let flex_grow = if use_flexible {
 7369                    size_state
 7370                        .and_then(|state| state.flex)
 7371                        .or_else(|| self.default_dock_flex(position))
 7372                } else {
 7373                    None
 7374                };
 7375                if let Some(grow) = flex_grow {
 7376                    let grow = grow.max(0.001);
 7377                    let style = container.style();
 7378                    style.flex_grow = Some(grow);
 7379                    style.flex_shrink = Some(1.0);
 7380                    style.flex_basis = Some(relative(0.).into());
 7381                } else {
 7382                    let size = size_state
 7383                        .and_then(|state| state.size)
 7384                        .unwrap_or_else(|| panel.default_size(window, cx));
 7385                    container = container.w(size);
 7386                }
 7387            } else {
 7388                let size = size_state
 7389                    .and_then(|state| state.size)
 7390                    .unwrap_or_else(|| panel.default_size(window, cx));
 7391                container = container.h(size);
 7392            }
 7393        }
 7394
 7395        Some(container)
 7396    }
 7397
 7398    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7399        window
 7400            .root::<MultiWorkspace>()
 7401            .flatten()
 7402            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7403    }
 7404
 7405    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7406        self.zoomed.as_ref()
 7407    }
 7408
 7409    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7410        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7411            return;
 7412        };
 7413        let windows = cx.windows();
 7414        let next_window =
 7415            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7416                || {
 7417                    windows
 7418                        .iter()
 7419                        .cycle()
 7420                        .skip_while(|window| window.window_id() != current_window_id)
 7421                        .nth(1)
 7422                },
 7423            );
 7424
 7425        if let Some(window) = next_window {
 7426            window
 7427                .update(cx, |_, window, _| window.activate_window())
 7428                .ok();
 7429        }
 7430    }
 7431
 7432    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7433        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7434            return;
 7435        };
 7436        let windows = cx.windows();
 7437        let prev_window =
 7438            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7439                || {
 7440                    windows
 7441                        .iter()
 7442                        .rev()
 7443                        .cycle()
 7444                        .skip_while(|window| window.window_id() != current_window_id)
 7445                        .nth(1)
 7446                },
 7447            );
 7448
 7449        if let Some(window) = prev_window {
 7450            window
 7451                .update(cx, |_, window, _| window.activate_window())
 7452                .ok();
 7453        }
 7454    }
 7455
 7456    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7457        if cx.stop_active_drag(window) {
 7458        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7459            dismiss_app_notification(&notification_id, cx);
 7460        } else {
 7461            cx.propagate();
 7462        }
 7463    }
 7464
 7465    fn resize_dock(
 7466        &mut self,
 7467        dock_pos: DockPosition,
 7468        new_size: Pixels,
 7469        window: &mut Window,
 7470        cx: &mut Context<Self>,
 7471    ) {
 7472        match dock_pos {
 7473            DockPosition::Left => self.resize_left_dock(new_size, window, cx),
 7474            DockPosition::Right => self.resize_right_dock(new_size, window, cx),
 7475            DockPosition::Bottom => self.resize_bottom_dock(new_size, window, cx),
 7476        }
 7477    }
 7478
 7479    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7480        let workspace_width = self.bounds.size.width;
 7481        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7482
 7483        self.right_dock.read_with(cx, |right_dock, cx| {
 7484            let right_dock_size = right_dock
 7485                .stored_active_panel_size(window, cx)
 7486                .unwrap_or(Pixels::ZERO);
 7487            if right_dock_size + size > workspace_width {
 7488                size = workspace_width - right_dock_size
 7489            }
 7490        });
 7491
 7492        let flex_grow = self.dock_flex_for_size(DockPosition::Left, size, window, cx);
 7493        self.left_dock.update(cx, |left_dock, cx| {
 7494            if WorkspaceSettings::get_global(cx)
 7495                .resize_all_panels_in_dock
 7496                .contains(&DockPosition::Left)
 7497            {
 7498                left_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7499            } else {
 7500                left_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7501            }
 7502        });
 7503    }
 7504
 7505    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7506        let workspace_width = self.bounds.size.width;
 7507        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7508        self.left_dock.read_with(cx, |left_dock, cx| {
 7509            let left_dock_size = left_dock
 7510                .stored_active_panel_size(window, cx)
 7511                .unwrap_or(Pixels::ZERO);
 7512            if left_dock_size + size > workspace_width {
 7513                size = workspace_width - left_dock_size
 7514            }
 7515        });
 7516        let flex_grow = self.dock_flex_for_size(DockPosition::Right, size, window, cx);
 7517        self.right_dock.update(cx, |right_dock, cx| {
 7518            if WorkspaceSettings::get_global(cx)
 7519                .resize_all_panels_in_dock
 7520                .contains(&DockPosition::Right)
 7521            {
 7522                right_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7523            } else {
 7524                right_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7525            }
 7526        });
 7527    }
 7528
 7529    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7530        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7531        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7532            if WorkspaceSettings::get_global(cx)
 7533                .resize_all_panels_in_dock
 7534                .contains(&DockPosition::Bottom)
 7535            {
 7536                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7537            } else {
 7538                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7539            }
 7540        });
 7541    }
 7542
 7543    fn toggle_edit_predictions_all_files(
 7544        &mut self,
 7545        _: &ToggleEditPrediction,
 7546        _window: &mut Window,
 7547        cx: &mut Context<Self>,
 7548    ) {
 7549        let fs = self.project().read(cx).fs().clone();
 7550        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7551        update_settings_file(fs, cx, move |file, _| {
 7552            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7553        });
 7554    }
 7555
 7556    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7557        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7558        let next_mode = match current_mode {
 7559            Some(theme_settings::ThemeAppearanceMode::Light) => {
 7560                theme_settings::ThemeAppearanceMode::Dark
 7561            }
 7562            Some(theme_settings::ThemeAppearanceMode::Dark) => {
 7563                theme_settings::ThemeAppearanceMode::Light
 7564            }
 7565            Some(theme_settings::ThemeAppearanceMode::System) | None => {
 7566                match cx.theme().appearance() {
 7567                    theme::Appearance::Light => theme_settings::ThemeAppearanceMode::Dark,
 7568                    theme::Appearance::Dark => theme_settings::ThemeAppearanceMode::Light,
 7569                }
 7570            }
 7571        };
 7572
 7573        let fs = self.project().read(cx).fs().clone();
 7574        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7575            theme_settings::set_mode(settings, next_mode);
 7576        });
 7577    }
 7578
 7579    pub fn show_worktree_trust_security_modal(
 7580        &mut self,
 7581        toggle: bool,
 7582        window: &mut Window,
 7583        cx: &mut Context<Self>,
 7584    ) {
 7585        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7586            if toggle {
 7587                security_modal.update(cx, |security_modal, cx| {
 7588                    security_modal.dismiss(cx);
 7589                })
 7590            } else {
 7591                security_modal.update(cx, |security_modal, cx| {
 7592                    security_modal.refresh_restricted_paths(cx);
 7593                });
 7594            }
 7595        } else {
 7596            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7597                .map(|trusted_worktrees| {
 7598                    trusted_worktrees
 7599                        .read(cx)
 7600                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7601                })
 7602                .unwrap_or(false);
 7603            if has_restricted_worktrees {
 7604                let project = self.project().read(cx);
 7605                let remote_host = project
 7606                    .remote_connection_options(cx)
 7607                    .map(RemoteHostLocation::from);
 7608                let worktree_store = project.worktree_store().downgrade();
 7609                self.toggle_modal(window, cx, |_, cx| {
 7610                    SecurityModal::new(worktree_store, remote_host, cx)
 7611                });
 7612            }
 7613        }
 7614    }
 7615}
 7616
 7617pub trait AnyActiveCall {
 7618    fn entity(&self) -> AnyEntity;
 7619    fn is_in_room(&self, _: &App) -> bool;
 7620    fn room_id(&self, _: &App) -> Option<u64>;
 7621    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7622    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7623    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7624    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7625    fn is_sharing_project(&self, _: &App) -> bool;
 7626    fn has_remote_participants(&self, _: &App) -> bool;
 7627    fn local_participant_is_guest(&self, _: &App) -> bool;
 7628    fn client(&self, _: &App) -> Arc<Client>;
 7629    fn share_on_join(&self, _: &App) -> bool;
 7630    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7631    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7632    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7633    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7634    fn join_project(
 7635        &self,
 7636        _: u64,
 7637        _: Arc<LanguageRegistry>,
 7638        _: Arc<dyn Fs>,
 7639        _: &mut App,
 7640    ) -> Task<Result<Entity<Project>>>;
 7641    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7642    fn subscribe(
 7643        &self,
 7644        _: &mut Window,
 7645        _: &mut Context<Workspace>,
 7646        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7647    ) -> Subscription;
 7648    fn create_shared_screen(
 7649        &self,
 7650        _: PeerId,
 7651        _: &Entity<Pane>,
 7652        _: &mut Window,
 7653        _: &mut App,
 7654    ) -> Option<Entity<SharedScreen>>;
 7655}
 7656
 7657#[derive(Clone)]
 7658pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7659impl Global for GlobalAnyActiveCall {}
 7660
 7661impl GlobalAnyActiveCall {
 7662    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7663        cx.try_global()
 7664    }
 7665
 7666    pub(crate) fn global(cx: &App) -> &Self {
 7667        cx.global()
 7668    }
 7669}
 7670
 7671pub fn merge_conflict_notification_id() -> NotificationId {
 7672    struct MergeConflictNotification;
 7673    NotificationId::unique::<MergeConflictNotification>()
 7674}
 7675
 7676/// Workspace-local view of a remote participant's location.
 7677#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7678pub enum ParticipantLocation {
 7679    SharedProject { project_id: u64 },
 7680    UnsharedProject,
 7681    External,
 7682}
 7683
 7684impl ParticipantLocation {
 7685    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7686        match location
 7687            .and_then(|l| l.variant)
 7688            .context("participant location was not provided")?
 7689        {
 7690            proto::participant_location::Variant::SharedProject(project) => {
 7691                Ok(Self::SharedProject {
 7692                    project_id: project.id,
 7693                })
 7694            }
 7695            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7696            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7697        }
 7698    }
 7699}
 7700/// Workspace-local view of a remote collaborator's state.
 7701/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7702#[derive(Clone)]
 7703pub struct RemoteCollaborator {
 7704    pub user: Arc<User>,
 7705    pub peer_id: PeerId,
 7706    pub location: ParticipantLocation,
 7707    pub participant_index: ParticipantIndex,
 7708}
 7709
 7710pub enum ActiveCallEvent {
 7711    ParticipantLocationChanged { participant_id: PeerId },
 7712    RemoteVideoTracksChanged { participant_id: PeerId },
 7713}
 7714
 7715fn leader_border_for_pane(
 7716    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7717    pane: &Entity<Pane>,
 7718    _: &Window,
 7719    cx: &App,
 7720) -> Option<Div> {
 7721    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7722        if state.pane() == pane {
 7723            Some((*leader_id, state))
 7724        } else {
 7725            None
 7726        }
 7727    })?;
 7728
 7729    let mut leader_color = match leader_id {
 7730        CollaboratorId::PeerId(leader_peer_id) => {
 7731            let leader = GlobalAnyActiveCall::try_global(cx)?
 7732                .0
 7733                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7734
 7735            cx.theme()
 7736                .players()
 7737                .color_for_participant(leader.participant_index.0)
 7738                .cursor
 7739        }
 7740        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7741    };
 7742    leader_color.fade_out(0.3);
 7743    Some(
 7744        div()
 7745            .absolute()
 7746            .size_full()
 7747            .left_0()
 7748            .top_0()
 7749            .border_2()
 7750            .border_color(leader_color),
 7751    )
 7752}
 7753
 7754fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7755    ZED_WINDOW_POSITION
 7756        .zip(*ZED_WINDOW_SIZE)
 7757        .map(|(position, size)| Bounds {
 7758            origin: position,
 7759            size,
 7760        })
 7761}
 7762
 7763fn open_items(
 7764    serialized_workspace: Option<SerializedWorkspace>,
 7765    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7766    window: &mut Window,
 7767    cx: &mut Context<Workspace>,
 7768) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7769    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7770        Workspace::load_workspace(
 7771            serialized_workspace,
 7772            project_paths_to_open
 7773                .iter()
 7774                .map(|(_, project_path)| project_path)
 7775                .cloned()
 7776                .collect(),
 7777            window,
 7778            cx,
 7779        )
 7780    });
 7781
 7782    cx.spawn_in(window, async move |workspace, cx| {
 7783        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7784
 7785        if let Some(restored_items) = restored_items {
 7786            let restored_items = restored_items.await?;
 7787
 7788            let restored_project_paths = restored_items
 7789                .iter()
 7790                .filter_map(|item| {
 7791                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7792                        .ok()
 7793                        .flatten()
 7794                })
 7795                .collect::<HashSet<_>>();
 7796
 7797            for restored_item in restored_items {
 7798                opened_items.push(restored_item.map(Ok));
 7799            }
 7800
 7801            project_paths_to_open
 7802                .iter_mut()
 7803                .for_each(|(_, project_path)| {
 7804                    if let Some(project_path_to_open) = project_path
 7805                        && restored_project_paths.contains(project_path_to_open)
 7806                    {
 7807                        *project_path = None;
 7808                    }
 7809                });
 7810        } else {
 7811            for _ in 0..project_paths_to_open.len() {
 7812                opened_items.push(None);
 7813            }
 7814        }
 7815        assert!(opened_items.len() == project_paths_to_open.len());
 7816
 7817        let tasks =
 7818            project_paths_to_open
 7819                .into_iter()
 7820                .enumerate()
 7821                .map(|(ix, (abs_path, project_path))| {
 7822                    let workspace = workspace.clone();
 7823                    cx.spawn(async move |cx| {
 7824                        let file_project_path = project_path?;
 7825                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7826                            workspace.project().update(cx, |project, cx| {
 7827                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7828                            })
 7829                        });
 7830
 7831                        // We only want to open file paths here. If one of the items
 7832                        // here is a directory, it was already opened further above
 7833                        // with a `find_or_create_worktree`.
 7834                        if let Ok(task) = abs_path_task
 7835                            && task.await.is_none_or(|p| p.is_file())
 7836                        {
 7837                            return Some((
 7838                                ix,
 7839                                workspace
 7840                                    .update_in(cx, |workspace, window, cx| {
 7841                                        workspace.open_path(
 7842                                            file_project_path,
 7843                                            None,
 7844                                            true,
 7845                                            window,
 7846                                            cx,
 7847                                        )
 7848                                    })
 7849                                    .log_err()?
 7850                                    .await,
 7851                            ));
 7852                        }
 7853                        None
 7854                    })
 7855                });
 7856
 7857        let tasks = tasks.collect::<Vec<_>>();
 7858
 7859        let tasks = futures::future::join_all(tasks);
 7860        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7861            opened_items[ix] = Some(path_open_result);
 7862        }
 7863
 7864        Ok(opened_items)
 7865    })
 7866}
 7867
 7868#[derive(Clone)]
 7869enum ActivateInDirectionTarget {
 7870    Pane(Entity<Pane>),
 7871    Dock(Entity<Dock>),
 7872    Sidebar(FocusHandle),
 7873}
 7874
 7875fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7876    window
 7877        .update(cx, |multi_workspace, _, cx| {
 7878            let workspace = multi_workspace.workspace().clone();
 7879            workspace.update(cx, |workspace, cx| {
 7880                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7881                    struct DatabaseFailedNotification;
 7882
 7883                    workspace.show_notification(
 7884                        NotificationId::unique::<DatabaseFailedNotification>(),
 7885                        cx,
 7886                        |cx| {
 7887                            cx.new(|cx| {
 7888                                MessageNotification::new("Failed to load the database file.", cx)
 7889                                    .primary_message("File an Issue")
 7890                                    .primary_icon(IconName::Plus)
 7891                                    .primary_on_click(|window, cx| {
 7892                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7893                                    })
 7894                            })
 7895                        },
 7896                    );
 7897                }
 7898            });
 7899        })
 7900        .log_err();
 7901}
 7902
 7903fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7904    if val == 0 {
 7905        ThemeSettings::get_global(cx).ui_font_size(cx)
 7906    } else {
 7907        px(val as f32)
 7908    }
 7909}
 7910
 7911fn adjust_active_dock_size_by_px(
 7912    px: Pixels,
 7913    workspace: &mut Workspace,
 7914    window: &mut Window,
 7915    cx: &mut Context<Workspace>,
 7916) {
 7917    let Some(active_dock) = workspace
 7918        .all_docks()
 7919        .into_iter()
 7920        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7921    else {
 7922        return;
 7923    };
 7924    let dock = active_dock.read(cx);
 7925    let Some(panel_size) = workspace.dock_size(&dock, window, cx) else {
 7926        return;
 7927    };
 7928    workspace.resize_dock(dock.position(), panel_size + px, window, cx);
 7929}
 7930
 7931fn adjust_open_docks_size_by_px(
 7932    px: Pixels,
 7933    workspace: &mut Workspace,
 7934    window: &mut Window,
 7935    cx: &mut Context<Workspace>,
 7936) {
 7937    let docks = workspace
 7938        .all_docks()
 7939        .into_iter()
 7940        .filter_map(|dock_entity| {
 7941            let dock = dock_entity.read(cx);
 7942            if dock.is_open() {
 7943                let dock_pos = dock.position();
 7944                let panel_size = workspace.dock_size(&dock, window, cx)?;
 7945                Some((dock_pos, panel_size + px))
 7946            } else {
 7947                None
 7948            }
 7949        })
 7950        .collect::<Vec<_>>();
 7951
 7952    for (position, new_size) in docks {
 7953        workspace.resize_dock(position, new_size, window, cx);
 7954    }
 7955}
 7956
 7957impl Focusable for Workspace {
 7958    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7959        self.active_pane.focus_handle(cx)
 7960    }
 7961}
 7962
 7963#[derive(Clone)]
 7964struct DraggedDock(DockPosition);
 7965
 7966impl Render for DraggedDock {
 7967    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7968        gpui::Empty
 7969    }
 7970}
 7971
 7972impl Render for Workspace {
 7973    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7974        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7975        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7976            log::info!("Rendered first frame");
 7977        }
 7978
 7979        let centered_layout = self.centered_layout
 7980            && self.center.panes().len() == 1
 7981            && self.active_item(cx).is_some();
 7982        let render_padding = |size| {
 7983            (size > 0.0).then(|| {
 7984                div()
 7985                    .h_full()
 7986                    .w(relative(size))
 7987                    .bg(cx.theme().colors().editor_background)
 7988                    .border_color(cx.theme().colors().pane_group_border)
 7989            })
 7990        };
 7991        let paddings = if centered_layout {
 7992            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7993            (
 7994                render_padding(Self::adjust_padding(
 7995                    settings.left_padding.map(|padding| padding.0),
 7996                )),
 7997                render_padding(Self::adjust_padding(
 7998                    settings.right_padding.map(|padding| padding.0),
 7999                )),
 8000            )
 8001        } else {
 8002            (None, None)
 8003        };
 8004        let ui_font = theme_settings::setup_ui_font(window, cx);
 8005
 8006        let theme = cx.theme().clone();
 8007        let colors = theme.colors();
 8008        let notification_entities = self
 8009            .notifications
 8010            .iter()
 8011            .map(|(_, notification)| notification.entity_id())
 8012            .collect::<Vec<_>>();
 8013        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 8014
 8015        div()
 8016            .relative()
 8017            .size_full()
 8018            .flex()
 8019            .flex_col()
 8020            .font(ui_font)
 8021            .gap_0()
 8022                .justify_start()
 8023                .items_start()
 8024                .text_color(colors.text)
 8025                .overflow_hidden()
 8026                .children(self.titlebar_item.clone())
 8027                .on_modifiers_changed(move |_, _, cx| {
 8028                    for &id in &notification_entities {
 8029                        cx.notify(id);
 8030                    }
 8031                })
 8032                .child(
 8033                    div()
 8034                        .size_full()
 8035                        .relative()
 8036                        .flex_1()
 8037                        .flex()
 8038                        .flex_col()
 8039                        .child(
 8040                            div()
 8041                                .id("workspace")
 8042                                .bg(colors.background)
 8043                                .relative()
 8044                                .flex_1()
 8045                                .w_full()
 8046                                .flex()
 8047                                .flex_col()
 8048                                .overflow_hidden()
 8049                                .border_t_1()
 8050                                .border_b_1()
 8051                                .border_color(colors.border)
 8052                                .child({
 8053                                    let this = cx.entity();
 8054                                    canvas(
 8055                                        move |bounds, window, cx| {
 8056                                            this.update(cx, |this, cx| {
 8057                                                let bounds_changed = this.bounds != bounds;
 8058                                                this.bounds = bounds;
 8059
 8060                                                if bounds_changed {
 8061                                                    this.left_dock.update(cx, |dock, cx| {
 8062                                                        dock.clamp_panel_size(
 8063                                                            bounds.size.width,
 8064                                                            window,
 8065                                                            cx,
 8066                                                        )
 8067                                                    });
 8068
 8069                                                    this.right_dock.update(cx, |dock, cx| {
 8070                                                        dock.clamp_panel_size(
 8071                                                            bounds.size.width,
 8072                                                            window,
 8073                                                            cx,
 8074                                                        )
 8075                                                    });
 8076
 8077                                                    this.bottom_dock.update(cx, |dock, cx| {
 8078                                                        dock.clamp_panel_size(
 8079                                                            bounds.size.height,
 8080                                                            window,
 8081                                                            cx,
 8082                                                        )
 8083                                                    });
 8084                                                }
 8085                                            })
 8086                                        },
 8087                                        |_, _, _, _| {},
 8088                                    )
 8089                                    .absolute()
 8090                                    .size_full()
 8091                                })
 8092                                .when(self.zoomed.is_none(), |this| {
 8093                                    this.on_drag_move(cx.listener(
 8094                                        move |workspace,
 8095                                              e: &DragMoveEvent<DraggedDock>,
 8096                                              window,
 8097                                              cx| {
 8098                                            if workspace.previous_dock_drag_coordinates
 8099                                                != Some(e.event.position)
 8100                                            {
 8101                                                workspace.previous_dock_drag_coordinates =
 8102                                                    Some(e.event.position);
 8103
 8104                                                match e.drag(cx).0 {
 8105                                                    DockPosition::Left => {
 8106                                                        workspace.resize_left_dock(
 8107                                                            e.event.position.x
 8108                                                                - workspace.bounds.left(),
 8109                                                            window,
 8110                                                            cx,
 8111                                                        );
 8112                                                    }
 8113                                                    DockPosition::Right => {
 8114                                                        workspace.resize_right_dock(
 8115                                                            workspace.bounds.right()
 8116                                                                - e.event.position.x,
 8117                                                            window,
 8118                                                            cx,
 8119                                                        );
 8120                                                    }
 8121                                                    DockPosition::Bottom => {
 8122                                                        workspace.resize_bottom_dock(
 8123                                                            workspace.bounds.bottom()
 8124                                                                - e.event.position.y,
 8125                                                            window,
 8126                                                            cx,
 8127                                                        );
 8128                                                    }
 8129                                                };
 8130                                                workspace.serialize_workspace(window, cx);
 8131                                            }
 8132                                        },
 8133                                    ))
 8134
 8135                                })
 8136                                .child({
 8137                                    match bottom_dock_layout {
 8138                                        BottomDockLayout::Full => div()
 8139                                            .flex()
 8140                                            .flex_col()
 8141                                            .h_full()
 8142                                            .child(
 8143                                                div()
 8144                                                    .flex()
 8145                                                    .flex_row()
 8146                                                    .flex_1()
 8147                                                    .overflow_hidden()
 8148                                                    .children(self.render_dock(
 8149                                                        DockPosition::Left,
 8150                                                        &self.left_dock,
 8151                                                        window,
 8152                                                        cx,
 8153                                                    ))
 8154
 8155                                                    .child(
 8156                                                        div()
 8157                                                            .flex()
 8158                                                            .flex_col()
 8159                                                            .flex_1()
 8160                                                            .overflow_hidden()
 8161                                                            .child(
 8162                                                                h_flex()
 8163                                                                    .flex_1()
 8164                                                                    .when_some(
 8165                                                                        paddings.0,
 8166                                                                        |this, p| {
 8167                                                                            this.child(
 8168                                                                                p.border_r_1(),
 8169                                                                            )
 8170                                                                        },
 8171                                                                    )
 8172                                                                    .child(self.center.render(
 8173                                                                        self.zoomed.as_ref(),
 8174                                                                        &PaneRenderContext {
 8175                                                                            follower_states:
 8176                                                                                &self.follower_states,
 8177                                                                            active_call: self.active_call(),
 8178                                                                            active_pane: &self.active_pane,
 8179                                                                            app_state: &self.app_state,
 8180                                                                            project: &self.project,
 8181                                                                            workspace: &self.weak_self,
 8182                                                                        },
 8183                                                                        window,
 8184                                                                        cx,
 8185                                                                    ))
 8186                                                                    .when_some(
 8187                                                                        paddings.1,
 8188                                                                        |this, p| {
 8189                                                                            this.child(
 8190                                                                                p.border_l_1(),
 8191                                                                            )
 8192                                                                        },
 8193                                                                    ),
 8194                                                            ),
 8195                                                    )
 8196
 8197                                                    .children(self.render_dock(
 8198                                                        DockPosition::Right,
 8199                                                        &self.right_dock,
 8200                                                        window,
 8201                                                        cx,
 8202                                                    )),
 8203                                            )
 8204                                            .child(div().w_full().children(self.render_dock(
 8205                                                DockPosition::Bottom,
 8206                                                &self.bottom_dock,
 8207                                                window,
 8208                                                cx
 8209                                            ))),
 8210
 8211                                        BottomDockLayout::LeftAligned => div()
 8212                                            .flex()
 8213                                            .flex_row()
 8214                                            .h_full()
 8215                                            .child(
 8216                                                div()
 8217                                                    .flex()
 8218                                                    .flex_col()
 8219                                                    .flex_1()
 8220                                                    .h_full()
 8221                                                    .child(
 8222                                                        div()
 8223                                                            .flex()
 8224                                                            .flex_row()
 8225                                                            .flex_1()
 8226                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8227
 8228                                                            .child(
 8229                                                                div()
 8230                                                                    .flex()
 8231                                                                    .flex_col()
 8232                                                                    .flex_1()
 8233                                                                    .overflow_hidden()
 8234                                                                    .child(
 8235                                                                        h_flex()
 8236                                                                            .flex_1()
 8237                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8238                                                                            .child(self.center.render(
 8239                                                                                self.zoomed.as_ref(),
 8240                                                                                &PaneRenderContext {
 8241                                                                                    follower_states:
 8242                                                                                        &self.follower_states,
 8243                                                                                    active_call: self.active_call(),
 8244                                                                                    active_pane: &self.active_pane,
 8245                                                                                    app_state: &self.app_state,
 8246                                                                                    project: &self.project,
 8247                                                                                    workspace: &self.weak_self,
 8248                                                                                },
 8249                                                                                window,
 8250                                                                                cx,
 8251                                                                            ))
 8252                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8253                                                                    )
 8254                                                            )
 8255
 8256                                                    )
 8257                                                    .child(
 8258                                                        div()
 8259                                                            .w_full()
 8260                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8261                                                    ),
 8262                                            )
 8263                                            .children(self.render_dock(
 8264                                                DockPosition::Right,
 8265                                                &self.right_dock,
 8266                                                window,
 8267                                                cx,
 8268                                            )),
 8269                                        BottomDockLayout::RightAligned => div()
 8270                                            .flex()
 8271                                            .flex_row()
 8272                                            .h_full()
 8273                                            .children(self.render_dock(
 8274                                                DockPosition::Left,
 8275                                                &self.left_dock,
 8276                                                window,
 8277                                                cx,
 8278                                            ))
 8279
 8280                                            .child(
 8281                                                div()
 8282                                                    .flex()
 8283                                                    .flex_col()
 8284                                                    .flex_1()
 8285                                                    .h_full()
 8286                                                    .child(
 8287                                                        div()
 8288                                                            .flex()
 8289                                                            .flex_row()
 8290                                                            .flex_1()
 8291                                                            .child(
 8292                                                                div()
 8293                                                                    .flex()
 8294                                                                    .flex_col()
 8295                                                                    .flex_1()
 8296                                                                    .overflow_hidden()
 8297                                                                    .child(
 8298                                                                        h_flex()
 8299                                                                            .flex_1()
 8300                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8301                                                                            .child(self.center.render(
 8302                                                                                self.zoomed.as_ref(),
 8303                                                                                &PaneRenderContext {
 8304                                                                                    follower_states:
 8305                                                                                        &self.follower_states,
 8306                                                                                    active_call: self.active_call(),
 8307                                                                                    active_pane: &self.active_pane,
 8308                                                                                    app_state: &self.app_state,
 8309                                                                                    project: &self.project,
 8310                                                                                    workspace: &self.weak_self,
 8311                                                                                },
 8312                                                                                window,
 8313                                                                                cx,
 8314                                                                            ))
 8315                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8316                                                                    )
 8317                                                            )
 8318
 8319                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8320                                                    )
 8321                                                    .child(
 8322                                                        div()
 8323                                                            .w_full()
 8324                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8325                                                    ),
 8326                                            ),
 8327                                        BottomDockLayout::Contained => div()
 8328                                            .flex()
 8329                                            .flex_row()
 8330                                            .h_full()
 8331                                            .children(self.render_dock(
 8332                                                DockPosition::Left,
 8333                                                &self.left_dock,
 8334                                                window,
 8335                                                cx,
 8336                                            ))
 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| {
 8348                                                                this.child(p.border_r_1())
 8349                                                            })
 8350                                                            .child(self.center.render(
 8351                                                                self.zoomed.as_ref(),
 8352                                                                &PaneRenderContext {
 8353                                                                    follower_states:
 8354                                                                        &self.follower_states,
 8355                                                                    active_call: self.active_call(),
 8356                                                                    active_pane: &self.active_pane,
 8357                                                                    app_state: &self.app_state,
 8358                                                                    project: &self.project,
 8359                                                                    workspace: &self.weak_self,
 8360                                                                },
 8361                                                                window,
 8362                                                                cx,
 8363                                                            ))
 8364                                                            .when_some(paddings.1, |this, p| {
 8365                                                                this.child(p.border_l_1())
 8366                                                            }),
 8367                                                    )
 8368                                                    .children(self.render_dock(
 8369                                                        DockPosition::Bottom,
 8370                                                        &self.bottom_dock,
 8371                                                        window,
 8372                                                        cx,
 8373                                                    )),
 8374                                            )
 8375
 8376                                            .children(self.render_dock(
 8377                                                DockPosition::Right,
 8378                                                &self.right_dock,
 8379                                                window,
 8380                                                cx,
 8381                                            )),
 8382                                    }
 8383                                })
 8384                                .children(self.zoomed.as_ref().and_then(|view| {
 8385                                    let zoomed_view = view.upgrade()?;
 8386                                    let div = div()
 8387                                        .occlude()
 8388                                        .absolute()
 8389                                        .overflow_hidden()
 8390                                        .border_color(colors.border)
 8391                                        .bg(colors.background)
 8392                                        .child(zoomed_view)
 8393                                        .inset_0()
 8394                                        .shadow_lg();
 8395
 8396                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8397                                       return Some(div);
 8398                                    }
 8399
 8400                                    Some(match self.zoomed_position {
 8401                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8402                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8403                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8404                                        None => {
 8405                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8406                                        }
 8407                                    })
 8408                                }))
 8409                                .children(self.render_notifications(window, cx)),
 8410                        )
 8411                        .when(self.status_bar_visible(cx), |parent| {
 8412                            parent.child(self.status_bar.clone())
 8413                        })
 8414                        .child(self.toast_layer.clone()),
 8415                )
 8416    }
 8417}
 8418
 8419impl WorkspaceStore {
 8420    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8421        Self {
 8422            workspaces: Default::default(),
 8423            _subscriptions: vec![
 8424                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8425                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8426            ],
 8427            client,
 8428        }
 8429    }
 8430
 8431    pub fn update_followers(
 8432        &self,
 8433        project_id: Option<u64>,
 8434        update: proto::update_followers::Variant,
 8435        cx: &App,
 8436    ) -> Option<()> {
 8437        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8438        let room_id = active_call.0.room_id(cx)?;
 8439        self.client
 8440            .send(proto::UpdateFollowers {
 8441                room_id,
 8442                project_id,
 8443                variant: Some(update),
 8444            })
 8445            .log_err()
 8446    }
 8447
 8448    pub async fn handle_follow(
 8449        this: Entity<Self>,
 8450        envelope: TypedEnvelope<proto::Follow>,
 8451        mut cx: AsyncApp,
 8452    ) -> Result<proto::FollowResponse> {
 8453        this.update(&mut cx, |this, cx| {
 8454            let follower = Follower {
 8455                project_id: envelope.payload.project_id,
 8456                peer_id: envelope.original_sender_id()?,
 8457            };
 8458
 8459            let mut response = proto::FollowResponse::default();
 8460
 8461            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8462                let Some(workspace) = weak_workspace.upgrade() else {
 8463                    return false;
 8464                };
 8465                window_handle
 8466                    .update(cx, |_, window, cx| {
 8467                        workspace.update(cx, |workspace, cx| {
 8468                            let handler_response =
 8469                                workspace.handle_follow(follower.project_id, window, cx);
 8470                            if let Some(active_view) = handler_response.active_view
 8471                                && workspace.project.read(cx).remote_id() == follower.project_id
 8472                            {
 8473                                response.active_view = Some(active_view)
 8474                            }
 8475                        });
 8476                    })
 8477                    .is_ok()
 8478            });
 8479
 8480            Ok(response)
 8481        })
 8482    }
 8483
 8484    async fn handle_update_followers(
 8485        this: Entity<Self>,
 8486        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8487        mut cx: AsyncApp,
 8488    ) -> Result<()> {
 8489        let leader_id = envelope.original_sender_id()?;
 8490        let update = envelope.payload;
 8491
 8492        this.update(&mut cx, |this, cx| {
 8493            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8494                let Some(workspace) = weak_workspace.upgrade() else {
 8495                    return false;
 8496                };
 8497                window_handle
 8498                    .update(cx, |_, window, cx| {
 8499                        workspace.update(cx, |workspace, cx| {
 8500                            let project_id = workspace.project.read(cx).remote_id();
 8501                            if update.project_id != project_id && update.project_id.is_some() {
 8502                                return;
 8503                            }
 8504                            workspace.handle_update_followers(
 8505                                leader_id,
 8506                                update.clone(),
 8507                                window,
 8508                                cx,
 8509                            );
 8510                        });
 8511                    })
 8512                    .is_ok()
 8513            });
 8514            Ok(())
 8515        })
 8516    }
 8517
 8518    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8519        self.workspaces.iter().map(|(_, weak)| weak)
 8520    }
 8521
 8522    pub fn workspaces_with_windows(
 8523        &self,
 8524    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8525        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8526    }
 8527}
 8528
 8529impl ViewId {
 8530    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8531        Ok(Self {
 8532            creator: message
 8533                .creator
 8534                .map(CollaboratorId::PeerId)
 8535                .context("creator is missing")?,
 8536            id: message.id,
 8537        })
 8538    }
 8539
 8540    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8541        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8542            Some(proto::ViewId {
 8543                creator: Some(peer_id),
 8544                id: self.id,
 8545            })
 8546        } else {
 8547            None
 8548        }
 8549    }
 8550}
 8551
 8552impl FollowerState {
 8553    fn pane(&self) -> &Entity<Pane> {
 8554        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8555    }
 8556}
 8557
 8558pub trait WorkspaceHandle {
 8559    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8560}
 8561
 8562impl WorkspaceHandle for Entity<Workspace> {
 8563    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8564        self.read(cx)
 8565            .worktrees(cx)
 8566            .flat_map(|worktree| {
 8567                let worktree_id = worktree.read(cx).id();
 8568                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8569                    worktree_id,
 8570                    path: f.path.clone(),
 8571                })
 8572            })
 8573            .collect::<Vec<_>>()
 8574    }
 8575}
 8576
 8577pub async fn last_opened_workspace_location(
 8578    db: &WorkspaceDb,
 8579    fs: &dyn fs::Fs,
 8580) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8581    db.last_workspace(fs)
 8582        .await
 8583        .log_err()
 8584        .flatten()
 8585        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8586}
 8587
 8588pub async fn last_session_workspace_locations(
 8589    db: &WorkspaceDb,
 8590    last_session_id: &str,
 8591    last_session_window_stack: Option<Vec<WindowId>>,
 8592    fs: &dyn fs::Fs,
 8593) -> Option<Vec<SessionWorkspace>> {
 8594    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8595        .await
 8596        .log_err()
 8597}
 8598
 8599pub struct MultiWorkspaceRestoreResult {
 8600    pub window_handle: WindowHandle<MultiWorkspace>,
 8601    pub errors: Vec<anyhow::Error>,
 8602}
 8603
 8604pub async fn restore_multiworkspace(
 8605    multi_workspace: SerializedMultiWorkspace,
 8606    app_state: Arc<AppState>,
 8607    cx: &mut AsyncApp,
 8608) -> anyhow::Result<MultiWorkspaceRestoreResult> {
 8609    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 8610    let mut group_iter = workspaces.into_iter();
 8611    let first = group_iter
 8612        .next()
 8613        .context("window group must not be empty")?;
 8614
 8615    let window_handle = if first.paths.is_empty() {
 8616        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 8617            .await?
 8618    } else {
 8619        let OpenResult { window, .. } = cx
 8620            .update(|cx| {
 8621                Workspace::new_local(
 8622                    first.paths.paths().to_vec(),
 8623                    app_state.clone(),
 8624                    None,
 8625                    None,
 8626                    None,
 8627                    OpenMode::Activate,
 8628                    cx,
 8629                )
 8630            })
 8631            .await?;
 8632        window
 8633    };
 8634
 8635    let mut errors = Vec::new();
 8636
 8637    for session_workspace in group_iter {
 8638        let error = if session_workspace.paths.is_empty() {
 8639            cx.update(|cx| {
 8640                open_workspace_by_id(
 8641                    session_workspace.workspace_id,
 8642                    app_state.clone(),
 8643                    Some(window_handle),
 8644                    cx,
 8645                )
 8646            })
 8647            .await
 8648            .err()
 8649        } else {
 8650            cx.update(|cx| {
 8651                Workspace::new_local(
 8652                    session_workspace.paths.paths().to_vec(),
 8653                    app_state.clone(),
 8654                    Some(window_handle),
 8655                    None,
 8656                    None,
 8657                    OpenMode::Add,
 8658                    cx,
 8659                )
 8660            })
 8661            .await
 8662            .err()
 8663        };
 8664
 8665        if let Some(error) = error {
 8666            errors.push(error);
 8667        }
 8668    }
 8669
 8670    if let Some(target_id) = state.active_workspace_id {
 8671        window_handle
 8672            .update(cx, |multi_workspace, window, cx| {
 8673                let target_index = multi_workspace
 8674                    .workspaces()
 8675                    .iter()
 8676                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8677                let index = target_index.unwrap_or(0);
 8678                if let Some(workspace) = multi_workspace.workspaces().get(index).cloned() {
 8679                    multi_workspace.activate(workspace, window, cx);
 8680                }
 8681            })
 8682            .ok();
 8683    } else {
 8684        window_handle
 8685            .update(cx, |multi_workspace, window, cx| {
 8686                if let Some(workspace) = multi_workspace.workspaces().first().cloned() {
 8687                    multi_workspace.activate(workspace, window, cx);
 8688                }
 8689            })
 8690            .ok();
 8691    }
 8692
 8693    if state.sidebar_open {
 8694        window_handle
 8695            .update(cx, |multi_workspace, _, cx| {
 8696                multi_workspace.open_sidebar(cx);
 8697            })
 8698            .ok();
 8699    }
 8700
 8701    if let Some(sidebar_state) = &state.sidebar_state {
 8702        let sidebar_state = sidebar_state.clone();
 8703        window_handle
 8704            .update(cx, |multi_workspace, window, cx| {
 8705                if let Some(sidebar) = multi_workspace.sidebar() {
 8706                    sidebar.restore_serialized_state(&sidebar_state, window, cx);
 8707                }
 8708                multi_workspace.serialize(cx);
 8709            })
 8710            .ok();
 8711    }
 8712
 8713    window_handle
 8714        .update(cx, |_, window, _cx| {
 8715            window.activate_window();
 8716        })
 8717        .ok();
 8718
 8719    Ok(MultiWorkspaceRestoreResult {
 8720        window_handle,
 8721        errors,
 8722    })
 8723}
 8724
 8725actions!(
 8726    collab,
 8727    [
 8728        /// Opens the channel notes for the current call.
 8729        ///
 8730        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8731        /// channel in the collab panel.
 8732        ///
 8733        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8734        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8735        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8736        OpenChannelNotes,
 8737        /// Mutes your microphone.
 8738        Mute,
 8739        /// Deafens yourself (mute both microphone and speakers).
 8740        Deafen,
 8741        /// Leaves the current call.
 8742        LeaveCall,
 8743        /// Shares the current project with collaborators.
 8744        ShareProject,
 8745        /// Shares your screen with collaborators.
 8746        ScreenShare,
 8747        /// Copies the current room name and session id for debugging purposes.
 8748        CopyRoomId,
 8749    ]
 8750);
 8751
 8752/// Opens the channel notes for a specific channel by its ID.
 8753#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8754#[action(namespace = collab)]
 8755#[serde(deny_unknown_fields)]
 8756pub struct OpenChannelNotesById {
 8757    pub channel_id: u64,
 8758}
 8759
 8760actions!(
 8761    zed,
 8762    [
 8763        /// Opens the Zed log file.
 8764        OpenLog,
 8765        /// Reveals the Zed log file in the system file manager.
 8766        RevealLogInFileManager
 8767    ]
 8768);
 8769
 8770async fn join_channel_internal(
 8771    channel_id: ChannelId,
 8772    app_state: &Arc<AppState>,
 8773    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8774    requesting_workspace: Option<WeakEntity<Workspace>>,
 8775    active_call: &dyn AnyActiveCall,
 8776    cx: &mut AsyncApp,
 8777) -> Result<bool> {
 8778    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8779        if !active_call.is_in_room(cx) {
 8780            return (false, false);
 8781        }
 8782
 8783        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8784        let should_prompt = active_call.is_sharing_project(cx)
 8785            && active_call.has_remote_participants(cx)
 8786            && !already_in_channel;
 8787        (should_prompt, already_in_channel)
 8788    });
 8789
 8790    if already_in_channel {
 8791        let task = cx.update(|cx| {
 8792            if let Some((project, host)) = active_call.most_active_project(cx) {
 8793                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8794            } else {
 8795                None
 8796            }
 8797        });
 8798        if let Some(task) = task {
 8799            task.await?;
 8800        }
 8801        return anyhow::Ok(true);
 8802    }
 8803
 8804    if should_prompt {
 8805        if let Some(multi_workspace) = requesting_window {
 8806            let answer = multi_workspace
 8807                .update(cx, |_, window, cx| {
 8808                    window.prompt(
 8809                        PromptLevel::Warning,
 8810                        "Do you want to switch channels?",
 8811                        Some("Leaving this call will unshare your current project."),
 8812                        &["Yes, Join Channel", "Cancel"],
 8813                        cx,
 8814                    )
 8815                })?
 8816                .await;
 8817
 8818            if answer == Ok(1) {
 8819                return Ok(false);
 8820            }
 8821        } else {
 8822            return Ok(false);
 8823        }
 8824    }
 8825
 8826    let client = cx.update(|cx| active_call.client(cx));
 8827
 8828    let mut client_status = client.status();
 8829
 8830    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8831    'outer: loop {
 8832        let Some(status) = client_status.recv().await else {
 8833            anyhow::bail!("error connecting");
 8834        };
 8835
 8836        match status {
 8837            Status::Connecting
 8838            | Status::Authenticating
 8839            | Status::Authenticated
 8840            | Status::Reconnecting
 8841            | Status::Reauthenticating
 8842            | Status::Reauthenticated => continue,
 8843            Status::Connected { .. } => break 'outer,
 8844            Status::SignedOut | Status::AuthenticationError => {
 8845                return Err(ErrorCode::SignedOut.into());
 8846            }
 8847            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8848            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8849                return Err(ErrorCode::Disconnected.into());
 8850            }
 8851        }
 8852    }
 8853
 8854    let joined = cx
 8855        .update(|cx| active_call.join_channel(channel_id, cx))
 8856        .await?;
 8857
 8858    if !joined {
 8859        return anyhow::Ok(true);
 8860    }
 8861
 8862    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8863
 8864    let task = cx.update(|cx| {
 8865        if let Some((project, host)) = active_call.most_active_project(cx) {
 8866            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8867        }
 8868
 8869        // If you are the first to join a channel, see if you should share your project.
 8870        if !active_call.has_remote_participants(cx)
 8871            && !active_call.local_participant_is_guest(cx)
 8872            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8873        {
 8874            let project = workspace.update(cx, |workspace, cx| {
 8875                let project = workspace.project.read(cx);
 8876
 8877                if !active_call.share_on_join(cx) {
 8878                    return None;
 8879                }
 8880
 8881                if (project.is_local() || project.is_via_remote_server())
 8882                    && project.visible_worktrees(cx).any(|tree| {
 8883                        tree.read(cx)
 8884                            .root_entry()
 8885                            .is_some_and(|entry| entry.is_dir())
 8886                    })
 8887                {
 8888                    Some(workspace.project.clone())
 8889                } else {
 8890                    None
 8891                }
 8892            });
 8893            if let Some(project) = project {
 8894                let share_task = active_call.share_project(project, cx);
 8895                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8896                    share_task.await?;
 8897                    Ok(())
 8898                }));
 8899            }
 8900        }
 8901
 8902        None
 8903    });
 8904    if let Some(task) = task {
 8905        task.await?;
 8906        return anyhow::Ok(true);
 8907    }
 8908    anyhow::Ok(false)
 8909}
 8910
 8911pub fn join_channel(
 8912    channel_id: ChannelId,
 8913    app_state: Arc<AppState>,
 8914    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8915    requesting_workspace: Option<WeakEntity<Workspace>>,
 8916    cx: &mut App,
 8917) -> Task<Result<()>> {
 8918    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8919    cx.spawn(async move |cx| {
 8920        let result = join_channel_internal(
 8921            channel_id,
 8922            &app_state,
 8923            requesting_window,
 8924            requesting_workspace,
 8925            &*active_call.0,
 8926            cx,
 8927        )
 8928        .await;
 8929
 8930        // join channel succeeded, and opened a window
 8931        if matches!(result, Ok(true)) {
 8932            return anyhow::Ok(());
 8933        }
 8934
 8935        // find an existing workspace to focus and show call controls
 8936        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8937        if active_window.is_none() {
 8938            // no open workspaces, make one to show the error in (blergh)
 8939            let OpenResult {
 8940                window: window_handle,
 8941                ..
 8942            } = cx
 8943                .update(|cx| {
 8944                    Workspace::new_local(
 8945                        vec![],
 8946                        app_state.clone(),
 8947                        requesting_window,
 8948                        None,
 8949                        None,
 8950                        OpenMode::Activate,
 8951                        cx,
 8952                    )
 8953                })
 8954                .await?;
 8955
 8956            window_handle
 8957                .update(cx, |_, window, _cx| {
 8958                    window.activate_window();
 8959                })
 8960                .ok();
 8961
 8962            if result.is_ok() {
 8963                cx.update(|cx| {
 8964                    cx.dispatch_action(&OpenChannelNotes);
 8965                });
 8966            }
 8967
 8968            active_window = Some(window_handle);
 8969        }
 8970
 8971        if let Err(err) = result {
 8972            log::error!("failed to join channel: {}", err);
 8973            if let Some(active_window) = active_window {
 8974                active_window
 8975                    .update(cx, |_, window, cx| {
 8976                        let detail: SharedString = match err.error_code() {
 8977                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8978                            ErrorCode::UpgradeRequired => concat!(
 8979                                "Your are running an unsupported version of Zed. ",
 8980                                "Please update to continue."
 8981                            )
 8982                            .into(),
 8983                            ErrorCode::NoSuchChannel => concat!(
 8984                                "No matching channel was found. ",
 8985                                "Please check the link and try again."
 8986                            )
 8987                            .into(),
 8988                            ErrorCode::Forbidden => concat!(
 8989                                "This channel is private, and you do not have access. ",
 8990                                "Please ask someone to add you and try again."
 8991                            )
 8992                            .into(),
 8993                            ErrorCode::Disconnected => {
 8994                                "Please check your internet connection and try again.".into()
 8995                            }
 8996                            _ => format!("{}\n\nPlease try again.", err).into(),
 8997                        };
 8998                        window.prompt(
 8999                            PromptLevel::Critical,
 9000                            "Failed to join channel",
 9001                            Some(&detail),
 9002                            &["Ok"],
 9003                            cx,
 9004                        )
 9005                    })?
 9006                    .await
 9007                    .ok();
 9008            }
 9009        }
 9010
 9011        // return ok, we showed the error to the user.
 9012        anyhow::Ok(())
 9013    })
 9014}
 9015
 9016pub async fn get_any_active_multi_workspace(
 9017    app_state: Arc<AppState>,
 9018    mut cx: AsyncApp,
 9019) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 9020    // find an existing workspace to focus and show call controls
 9021    let active_window = activate_any_workspace_window(&mut cx);
 9022    if active_window.is_none() {
 9023        cx.update(|cx| {
 9024            Workspace::new_local(
 9025                vec![],
 9026                app_state.clone(),
 9027                None,
 9028                None,
 9029                None,
 9030                OpenMode::Activate,
 9031                cx,
 9032            )
 9033        })
 9034        .await?;
 9035    }
 9036    activate_any_workspace_window(&mut cx).context("could not open zed")
 9037}
 9038
 9039fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 9040    cx.update(|cx| {
 9041        if let Some(workspace_window) = cx
 9042            .active_window()
 9043            .and_then(|window| window.downcast::<MultiWorkspace>())
 9044        {
 9045            return Some(workspace_window);
 9046        }
 9047
 9048        for window in cx.windows() {
 9049            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 9050                workspace_window
 9051                    .update(cx, |_, window, _| window.activate_window())
 9052                    .ok();
 9053                return Some(workspace_window);
 9054            }
 9055        }
 9056        None
 9057    })
 9058}
 9059
 9060pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 9061    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 9062}
 9063
 9064pub fn workspace_windows_for_location(
 9065    serialized_location: &SerializedWorkspaceLocation,
 9066    cx: &App,
 9067) -> Vec<WindowHandle<MultiWorkspace>> {
 9068    cx.windows()
 9069        .into_iter()
 9070        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9071        .filter(|multi_workspace| {
 9072            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 9073                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 9074                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 9075                }
 9076                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 9077                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 9078                    a.distro_name == b.distro_name
 9079                }
 9080                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 9081                    a.container_id == b.container_id
 9082                }
 9083                #[cfg(any(test, feature = "test-support"))]
 9084                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 9085                    a.id == b.id
 9086                }
 9087                _ => false,
 9088            };
 9089
 9090            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 9091                multi_workspace.workspaces().iter().any(|workspace| {
 9092                    match workspace.read(cx).workspace_location(cx) {
 9093                        WorkspaceLocation::Location(location, _) => {
 9094                            match (&location, serialized_location) {
 9095                                (
 9096                                    SerializedWorkspaceLocation::Local,
 9097                                    SerializedWorkspaceLocation::Local,
 9098                                ) => true,
 9099                                (
 9100                                    SerializedWorkspaceLocation::Remote(a),
 9101                                    SerializedWorkspaceLocation::Remote(b),
 9102                                ) => same_host(a, b),
 9103                                _ => false,
 9104                            }
 9105                        }
 9106                        _ => false,
 9107                    }
 9108                })
 9109            })
 9110        })
 9111        .collect()
 9112}
 9113
 9114pub async fn find_existing_workspace(
 9115    abs_paths: &[PathBuf],
 9116    open_options: &OpenOptions,
 9117    location: &SerializedWorkspaceLocation,
 9118    cx: &mut AsyncApp,
 9119) -> (
 9120    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 9121    OpenVisible,
 9122) {
 9123    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 9124    let mut open_visible = OpenVisible::All;
 9125    let mut best_match = None;
 9126
 9127    if open_options.open_new_workspace != Some(true) {
 9128        cx.update(|cx| {
 9129            for window in workspace_windows_for_location(location, cx) {
 9130                if let Ok(multi_workspace) = window.read(cx) {
 9131                    for workspace in multi_workspace.workspaces() {
 9132                        let project = workspace.read(cx).project.read(cx);
 9133                        let m = project.visibility_for_paths(
 9134                            abs_paths,
 9135                            open_options.open_new_workspace == None,
 9136                            cx,
 9137                        );
 9138                        if m > best_match {
 9139                            existing = Some((window, workspace.clone()));
 9140                            best_match = m;
 9141                        } else if best_match.is_none()
 9142                            && open_options.open_new_workspace == Some(false)
 9143                        {
 9144                            existing = Some((window, workspace.clone()))
 9145                        }
 9146                    }
 9147                }
 9148            }
 9149        });
 9150
 9151        let all_paths_are_files = existing
 9152            .as_ref()
 9153            .and_then(|(_, target_workspace)| {
 9154                cx.update(|cx| {
 9155                    let workspace = target_workspace.read(cx);
 9156                    let project = workspace.project.read(cx);
 9157                    let path_style = workspace.path_style(cx);
 9158                    Some(!abs_paths.iter().any(|path| {
 9159                        let path = util::paths::SanitizedPath::new(path);
 9160                        project.worktrees(cx).any(|worktree| {
 9161                            let worktree = worktree.read(cx);
 9162                            let abs_path = worktree.abs_path();
 9163                            path_style
 9164                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9165                                .and_then(|rel| worktree.entry_for_path(&rel))
 9166                                .is_some_and(|e| e.is_dir())
 9167                        })
 9168                    }))
 9169                })
 9170            })
 9171            .unwrap_or(false);
 9172
 9173        if open_options.open_new_workspace.is_none()
 9174            && existing.is_some()
 9175            && open_options.wait
 9176            && all_paths_are_files
 9177        {
 9178            cx.update(|cx| {
 9179                let windows = workspace_windows_for_location(location, cx);
 9180                let window = cx
 9181                    .active_window()
 9182                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9183                    .filter(|window| windows.contains(window))
 9184                    .or_else(|| windows.into_iter().next());
 9185                if let Some(window) = window {
 9186                    if let Ok(multi_workspace) = window.read(cx) {
 9187                        let active_workspace = multi_workspace.workspace().clone();
 9188                        existing = Some((window, active_workspace));
 9189                        open_visible = OpenVisible::None;
 9190                    }
 9191                }
 9192            });
 9193        }
 9194    }
 9195    (existing, open_visible)
 9196}
 9197
 9198#[derive(Default, Clone)]
 9199pub struct OpenOptions {
 9200    pub visible: Option<OpenVisible>,
 9201    pub focus: Option<bool>,
 9202    pub open_new_workspace: Option<bool>,
 9203    pub wait: bool,
 9204    pub requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9205    pub open_mode: OpenMode,
 9206    pub env: Option<HashMap<String, String>>,
 9207}
 9208
 9209/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9210/// or [`Workspace::open_workspace_for_paths`].
 9211pub struct OpenResult {
 9212    pub window: WindowHandle<MultiWorkspace>,
 9213    pub workspace: Entity<Workspace>,
 9214    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9215}
 9216
 9217/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9218pub fn open_workspace_by_id(
 9219    workspace_id: WorkspaceId,
 9220    app_state: Arc<AppState>,
 9221    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9222    cx: &mut App,
 9223) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9224    let project_handle = Project::local(
 9225        app_state.client.clone(),
 9226        app_state.node_runtime.clone(),
 9227        app_state.user_store.clone(),
 9228        app_state.languages.clone(),
 9229        app_state.fs.clone(),
 9230        None,
 9231        project::LocalProjectFlags {
 9232            init_worktree_trust: true,
 9233            ..project::LocalProjectFlags::default()
 9234        },
 9235        cx,
 9236    );
 9237
 9238    let db = WorkspaceDb::global(cx);
 9239    let kvp = db::kvp::KeyValueStore::global(cx);
 9240    cx.spawn(async move |cx| {
 9241        let serialized_workspace = db
 9242            .workspace_for_id(workspace_id)
 9243            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9244
 9245        let centered_layout = serialized_workspace.centered_layout;
 9246
 9247        let (window, workspace) = if let Some(window) = requesting_window {
 9248            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9249                let workspace = cx.new(|cx| {
 9250                    let mut workspace = Workspace::new(
 9251                        Some(workspace_id),
 9252                        project_handle.clone(),
 9253                        app_state.clone(),
 9254                        window,
 9255                        cx,
 9256                    );
 9257                    workspace.centered_layout = centered_layout;
 9258                    workspace
 9259                });
 9260                multi_workspace.add(workspace.clone(), &*window, cx);
 9261                workspace
 9262            })?;
 9263            (window, workspace)
 9264        } else {
 9265            let window_bounds_override = window_bounds_env_override();
 9266
 9267            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9268                (Some(WindowBounds::Windowed(bounds)), None)
 9269            } else if let Some(display) = serialized_workspace.display
 9270                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9271            {
 9272                (Some(bounds.0), Some(display))
 9273            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9274                (Some(bounds), Some(display))
 9275            } else {
 9276                (None, None)
 9277            };
 9278
 9279            let options = cx.update(|cx| {
 9280                let mut options = (app_state.build_window_options)(display, cx);
 9281                options.window_bounds = window_bounds;
 9282                options
 9283            });
 9284
 9285            let window = cx.open_window(options, {
 9286                let app_state = app_state.clone();
 9287                let project_handle = project_handle.clone();
 9288                move |window, cx| {
 9289                    let workspace = cx.new(|cx| {
 9290                        let mut workspace = Workspace::new(
 9291                            Some(workspace_id),
 9292                            project_handle,
 9293                            app_state,
 9294                            window,
 9295                            cx,
 9296                        );
 9297                        workspace.centered_layout = centered_layout;
 9298                        workspace
 9299                    });
 9300                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9301                }
 9302            })?;
 9303
 9304            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9305                multi_workspace.workspace().clone()
 9306            })?;
 9307
 9308            (window, workspace)
 9309        };
 9310
 9311        notify_if_database_failed(window, cx);
 9312
 9313        // Restore items from the serialized workspace
 9314        window
 9315            .update(cx, |_, window, cx| {
 9316                workspace.update(cx, |_workspace, cx| {
 9317                    open_items(Some(serialized_workspace), vec![], window, cx)
 9318                })
 9319            })?
 9320            .await?;
 9321
 9322        window.update(cx, |_, window, cx| {
 9323            workspace.update(cx, |workspace, cx| {
 9324                workspace.serialize_workspace(window, cx);
 9325            });
 9326        })?;
 9327
 9328        Ok(window)
 9329    })
 9330}
 9331
 9332#[allow(clippy::type_complexity)]
 9333pub fn open_paths(
 9334    abs_paths: &[PathBuf],
 9335    app_state: Arc<AppState>,
 9336    open_options: OpenOptions,
 9337    cx: &mut App,
 9338) -> Task<anyhow::Result<OpenResult>> {
 9339    let abs_paths = abs_paths.to_vec();
 9340    #[cfg(target_os = "windows")]
 9341    let wsl_path = abs_paths
 9342        .iter()
 9343        .find_map(|p| util::paths::WslPath::from_path(p));
 9344
 9345    cx.spawn(async move |cx| {
 9346        let (mut existing, mut open_visible) = find_existing_workspace(
 9347            &abs_paths,
 9348            &open_options,
 9349            &SerializedWorkspaceLocation::Local,
 9350            cx,
 9351        )
 9352        .await;
 9353
 9354        // Fallback: if no workspace contains the paths and all paths are files,
 9355        // prefer an existing local workspace window (active window first).
 9356        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9357            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9358            let all_metadatas = futures::future::join_all(all_paths)
 9359                .await
 9360                .into_iter()
 9361                .filter_map(|result| result.ok().flatten())
 9362                .collect::<Vec<_>>();
 9363
 9364            if all_metadatas.iter().all(|file| !file.is_dir) {
 9365                cx.update(|cx| {
 9366                    let windows = workspace_windows_for_location(
 9367                        &SerializedWorkspaceLocation::Local,
 9368                        cx,
 9369                    );
 9370                    let window = cx
 9371                        .active_window()
 9372                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9373                        .filter(|window| windows.contains(window))
 9374                        .or_else(|| windows.into_iter().next());
 9375                    if let Some(window) = window {
 9376                        if let Ok(multi_workspace) = window.read(cx) {
 9377                            let active_workspace = multi_workspace.workspace().clone();
 9378                            existing = Some((window, active_workspace));
 9379                            open_visible = OpenVisible::None;
 9380                        }
 9381                    }
 9382                });
 9383            }
 9384        }
 9385
 9386        let result = if let Some((existing, target_workspace)) = existing {
 9387            let open_task = existing
 9388                .update(cx, |multi_workspace, window, cx| {
 9389                    window.activate_window();
 9390                    multi_workspace.activate(target_workspace.clone(), window, cx);
 9391                    target_workspace.update(cx, |workspace, cx| {
 9392                        workspace.open_paths(
 9393                            abs_paths,
 9394                            OpenOptions {
 9395                                visible: Some(open_visible),
 9396                                ..Default::default()
 9397                            },
 9398                            None,
 9399                            window,
 9400                            cx,
 9401                        )
 9402                    })
 9403                })?
 9404                .await;
 9405
 9406            _ = existing.update(cx, |multi_workspace, _, cx| {
 9407                let workspace = multi_workspace.workspace().clone();
 9408                workspace.update(cx, |workspace, cx| {
 9409                    for item in open_task.iter().flatten() {
 9410                        if let Err(e) = item {
 9411                            workspace.show_error(&e, cx);
 9412                        }
 9413                    }
 9414                });
 9415            });
 9416
 9417            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9418        } else {
 9419            let result = cx
 9420                .update(move |cx| {
 9421                    Workspace::new_local(
 9422                        abs_paths,
 9423                        app_state.clone(),
 9424                        open_options.requesting_window,
 9425                        open_options.env,
 9426                        None,
 9427                        open_options.open_mode,
 9428                        cx,
 9429                    )
 9430                })
 9431                .await;
 9432
 9433            if let Ok(ref result) = result {
 9434                result.window
 9435                    .update(cx, |_, window, _cx| {
 9436                        window.activate_window();
 9437                    })
 9438                    .log_err();
 9439            }
 9440
 9441            result
 9442        };
 9443
 9444        #[cfg(target_os = "windows")]
 9445        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9446            && let Ok(ref result) = result
 9447        {
 9448            result.window
 9449                .update(cx, move |multi_workspace, _window, cx| {
 9450                    struct OpenInWsl;
 9451                    let workspace = multi_workspace.workspace().clone();
 9452                    workspace.update(cx, |workspace, cx| {
 9453                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9454                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9455                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9456                            cx.new(move |cx| {
 9457                                MessageNotification::new(msg, cx)
 9458                                    .primary_message("Open in WSL")
 9459                                    .primary_icon(IconName::FolderOpen)
 9460                                    .primary_on_click(move |window, cx| {
 9461                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9462                                                distro: remote::WslConnectionOptions {
 9463                                                        distro_name: distro.clone(),
 9464                                                    user: None,
 9465                                                },
 9466                                                paths: vec![path.clone().into()],
 9467                                            }), cx)
 9468                                    })
 9469                            })
 9470                        });
 9471                    });
 9472                })
 9473                .unwrap();
 9474        };
 9475        result
 9476    })
 9477}
 9478
 9479pub fn open_new(
 9480    open_options: OpenOptions,
 9481    app_state: Arc<AppState>,
 9482    cx: &mut App,
 9483    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9484) -> Task<anyhow::Result<()>> {
 9485    let addition = open_options.open_mode;
 9486    let task = Workspace::new_local(
 9487        Vec::new(),
 9488        app_state,
 9489        open_options.requesting_window,
 9490        open_options.env,
 9491        Some(Box::new(init)),
 9492        addition,
 9493        cx,
 9494    );
 9495    cx.spawn(async move |cx| {
 9496        let OpenResult { window, .. } = task.await?;
 9497        window
 9498            .update(cx, |_, window, _cx| {
 9499                window.activate_window();
 9500            })
 9501            .ok();
 9502        Ok(())
 9503    })
 9504}
 9505
 9506pub fn create_and_open_local_file(
 9507    path: &'static Path,
 9508    window: &mut Window,
 9509    cx: &mut Context<Workspace>,
 9510    default_content: impl 'static + Send + FnOnce() -> Rope,
 9511) -> Task<Result<Box<dyn ItemHandle>>> {
 9512    cx.spawn_in(window, async move |workspace, cx| {
 9513        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9514        if !fs.is_file(path).await {
 9515            fs.create_file(path, Default::default()).await?;
 9516            fs.save(path, &default_content(), Default::default())
 9517                .await?;
 9518        }
 9519
 9520        workspace
 9521            .update_in(cx, |workspace, window, cx| {
 9522                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9523                    let path = workspace
 9524                        .project
 9525                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9526                    cx.spawn_in(window, async move |workspace, cx| {
 9527                        let path = path.await?;
 9528
 9529                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9530
 9531                        let mut items = workspace
 9532                            .update_in(cx, |workspace, window, cx| {
 9533                                workspace.open_paths(
 9534                                    vec![path.to_path_buf()],
 9535                                    OpenOptions {
 9536                                        visible: Some(OpenVisible::None),
 9537                                        ..Default::default()
 9538                                    },
 9539                                    None,
 9540                                    window,
 9541                                    cx,
 9542                                )
 9543                            })?
 9544                            .await;
 9545                        let item = items.pop().flatten();
 9546                        item.with_context(|| format!("path {path:?} is not a file"))?
 9547                    })
 9548                })
 9549            })?
 9550            .await?
 9551            .await
 9552    })
 9553}
 9554
 9555pub fn open_remote_project_with_new_connection(
 9556    window: WindowHandle<MultiWorkspace>,
 9557    remote_connection: Arc<dyn RemoteConnection>,
 9558    cancel_rx: oneshot::Receiver<()>,
 9559    delegate: Arc<dyn RemoteClientDelegate>,
 9560    app_state: Arc<AppState>,
 9561    paths: Vec<PathBuf>,
 9562    cx: &mut App,
 9563) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9564    cx.spawn(async move |cx| {
 9565        let (workspace_id, serialized_workspace) =
 9566            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9567                .await?;
 9568
 9569        let session = match cx
 9570            .update(|cx| {
 9571                remote::RemoteClient::new(
 9572                    ConnectionIdentifier::Workspace(workspace_id.0),
 9573                    remote_connection,
 9574                    cancel_rx,
 9575                    delegate,
 9576                    cx,
 9577                )
 9578            })
 9579            .await?
 9580        {
 9581            Some(result) => result,
 9582            None => return Ok(Vec::new()),
 9583        };
 9584
 9585        let project = cx.update(|cx| {
 9586            project::Project::remote(
 9587                session,
 9588                app_state.client.clone(),
 9589                app_state.node_runtime.clone(),
 9590                app_state.user_store.clone(),
 9591                app_state.languages.clone(),
 9592                app_state.fs.clone(),
 9593                true,
 9594                cx,
 9595            )
 9596        });
 9597
 9598        open_remote_project_inner(
 9599            project,
 9600            paths,
 9601            workspace_id,
 9602            serialized_workspace,
 9603            app_state,
 9604            window,
 9605            cx,
 9606        )
 9607        .await
 9608    })
 9609}
 9610
 9611pub fn open_remote_project_with_existing_connection(
 9612    connection_options: RemoteConnectionOptions,
 9613    project: Entity<Project>,
 9614    paths: Vec<PathBuf>,
 9615    app_state: Arc<AppState>,
 9616    window: WindowHandle<MultiWorkspace>,
 9617    cx: &mut AsyncApp,
 9618) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9619    cx.spawn(async move |cx| {
 9620        let (workspace_id, serialized_workspace) =
 9621            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9622
 9623        open_remote_project_inner(
 9624            project,
 9625            paths,
 9626            workspace_id,
 9627            serialized_workspace,
 9628            app_state,
 9629            window,
 9630            cx,
 9631        )
 9632        .await
 9633    })
 9634}
 9635
 9636async fn open_remote_project_inner(
 9637    project: Entity<Project>,
 9638    paths: Vec<PathBuf>,
 9639    workspace_id: WorkspaceId,
 9640    serialized_workspace: Option<SerializedWorkspace>,
 9641    app_state: Arc<AppState>,
 9642    window: WindowHandle<MultiWorkspace>,
 9643    cx: &mut AsyncApp,
 9644) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9645    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9646    let toolchains = db.toolchains(workspace_id).await?;
 9647    for (toolchain, worktree_path, path) in toolchains {
 9648        project
 9649            .update(cx, |this, cx| {
 9650                let Some(worktree_id) =
 9651                    this.find_worktree(&worktree_path, cx)
 9652                        .and_then(|(worktree, rel_path)| {
 9653                            if rel_path.is_empty() {
 9654                                Some(worktree.read(cx).id())
 9655                            } else {
 9656                                None
 9657                            }
 9658                        })
 9659                else {
 9660                    return Task::ready(None);
 9661                };
 9662
 9663                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9664            })
 9665            .await;
 9666    }
 9667    let mut project_paths_to_open = vec![];
 9668    let mut project_path_errors = vec![];
 9669
 9670    for path in paths {
 9671        let result = cx
 9672            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9673            .await;
 9674        match result {
 9675            Ok((_, project_path)) => {
 9676                project_paths_to_open.push((path.clone(), Some(project_path)));
 9677            }
 9678            Err(error) => {
 9679                project_path_errors.push(error);
 9680            }
 9681        };
 9682    }
 9683
 9684    if project_paths_to_open.is_empty() {
 9685        return Err(project_path_errors.pop().context("no paths given")?);
 9686    }
 9687
 9688    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9689        telemetry::event!("SSH Project Opened");
 9690
 9691        let new_workspace = cx.new(|cx| {
 9692            let mut workspace =
 9693                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9694            workspace.update_history(cx);
 9695
 9696            if let Some(ref serialized) = serialized_workspace {
 9697                workspace.centered_layout = serialized.centered_layout;
 9698            }
 9699
 9700            workspace
 9701        });
 9702
 9703        multi_workspace.activate(new_workspace.clone(), window, cx);
 9704        new_workspace
 9705    })?;
 9706
 9707    let items = window
 9708        .update(cx, |_, window, cx| {
 9709            window.activate_window();
 9710            workspace.update(cx, |_workspace, cx| {
 9711                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9712            })
 9713        })?
 9714        .await?;
 9715
 9716    workspace.update(cx, |workspace, cx| {
 9717        for error in project_path_errors {
 9718            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9719                if let Some(path) = error.error_tag("path") {
 9720                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9721                }
 9722            } else {
 9723                workspace.show_error(&error, cx)
 9724            }
 9725        }
 9726    });
 9727
 9728    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9729}
 9730
 9731fn deserialize_remote_project(
 9732    connection_options: RemoteConnectionOptions,
 9733    paths: Vec<PathBuf>,
 9734    cx: &AsyncApp,
 9735) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9736    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9737    cx.background_spawn(async move {
 9738        let remote_connection_id = db
 9739            .get_or_create_remote_connection(connection_options)
 9740            .await?;
 9741
 9742        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9743
 9744        let workspace_id = if let Some(workspace_id) =
 9745            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9746        {
 9747            workspace_id
 9748        } else {
 9749            db.next_id().await?
 9750        };
 9751
 9752        Ok((workspace_id, serialized_workspace))
 9753    })
 9754}
 9755
 9756pub fn join_in_room_project(
 9757    project_id: u64,
 9758    follow_user_id: u64,
 9759    app_state: Arc<AppState>,
 9760    cx: &mut App,
 9761) -> Task<Result<()>> {
 9762    let windows = cx.windows();
 9763    cx.spawn(async move |cx| {
 9764        let existing_window_and_workspace: Option<(
 9765            WindowHandle<MultiWorkspace>,
 9766            Entity<Workspace>,
 9767        )> = windows.into_iter().find_map(|window_handle| {
 9768            window_handle
 9769                .downcast::<MultiWorkspace>()
 9770                .and_then(|window_handle| {
 9771                    window_handle
 9772                        .update(cx, |multi_workspace, _window, cx| {
 9773                            for workspace in multi_workspace.workspaces() {
 9774                                if workspace.read(cx).project().read(cx).remote_id()
 9775                                    == Some(project_id)
 9776                                {
 9777                                    return Some((window_handle, workspace.clone()));
 9778                                }
 9779                            }
 9780                            None
 9781                        })
 9782                        .unwrap_or(None)
 9783                })
 9784        });
 9785
 9786        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9787            existing_window_and_workspace
 9788        {
 9789            existing_window
 9790                .update(cx, |multi_workspace, window, cx| {
 9791                    multi_workspace.activate(target_workspace, window, cx);
 9792                })
 9793                .ok();
 9794            existing_window
 9795        } else {
 9796            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9797            let project = cx
 9798                .update(|cx| {
 9799                    active_call.0.join_project(
 9800                        project_id,
 9801                        app_state.languages.clone(),
 9802                        app_state.fs.clone(),
 9803                        cx,
 9804                    )
 9805                })
 9806                .await?;
 9807
 9808            let window_bounds_override = window_bounds_env_override();
 9809            cx.update(|cx| {
 9810                let mut options = (app_state.build_window_options)(None, cx);
 9811                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9812                cx.open_window(options, |window, cx| {
 9813                    let workspace = cx.new(|cx| {
 9814                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9815                    });
 9816                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9817                })
 9818            })?
 9819        };
 9820
 9821        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9822            cx.activate(true);
 9823            window.activate_window();
 9824
 9825            // We set the active workspace above, so this is the correct workspace.
 9826            let workspace = multi_workspace.workspace().clone();
 9827            workspace.update(cx, |workspace, cx| {
 9828                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9829                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9830                    .or_else(|| {
 9831                        // If we couldn't follow the given user, follow the host instead.
 9832                        let collaborator = workspace
 9833                            .project()
 9834                            .read(cx)
 9835                            .collaborators()
 9836                            .values()
 9837                            .find(|collaborator| collaborator.is_host)?;
 9838                        Some(collaborator.peer_id)
 9839                    });
 9840
 9841                if let Some(follow_peer_id) = follow_peer_id {
 9842                    workspace.follow(follow_peer_id, window, cx);
 9843                }
 9844            });
 9845        })?;
 9846
 9847        anyhow::Ok(())
 9848    })
 9849}
 9850
 9851pub fn reload(cx: &mut App) {
 9852    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9853    let mut workspace_windows = cx
 9854        .windows()
 9855        .into_iter()
 9856        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9857        .collect::<Vec<_>>();
 9858
 9859    // If multiple windows have unsaved changes, and need a save prompt,
 9860    // prompt in the active window before switching to a different window.
 9861    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9862
 9863    let mut prompt = None;
 9864    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9865        prompt = window
 9866            .update(cx, |_, window, cx| {
 9867                window.prompt(
 9868                    PromptLevel::Info,
 9869                    "Are you sure you want to restart?",
 9870                    None,
 9871                    &["Restart", "Cancel"],
 9872                    cx,
 9873                )
 9874            })
 9875            .ok();
 9876    }
 9877
 9878    cx.spawn(async move |cx| {
 9879        if let Some(prompt) = prompt {
 9880            let answer = prompt.await?;
 9881            if answer != 0 {
 9882                return anyhow::Ok(());
 9883            }
 9884        }
 9885
 9886        // If the user cancels any save prompt, then keep the app open.
 9887        for window in workspace_windows {
 9888            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9889                let workspace = multi_workspace.workspace().clone();
 9890                workspace.update(cx, |workspace, cx| {
 9891                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9892                })
 9893            }) && !should_close.await?
 9894            {
 9895                return anyhow::Ok(());
 9896            }
 9897        }
 9898        cx.update(|cx| cx.restart());
 9899        anyhow::Ok(())
 9900    })
 9901    .detach_and_log_err(cx);
 9902}
 9903
 9904fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9905    let mut parts = value.split(',');
 9906    let x: usize = parts.next()?.parse().ok()?;
 9907    let y: usize = parts.next()?.parse().ok()?;
 9908    Some(point(px(x as f32), px(y as f32)))
 9909}
 9910
 9911fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9912    let mut parts = value.split(',');
 9913    let width: usize = parts.next()?.parse().ok()?;
 9914    let height: usize = parts.next()?.parse().ok()?;
 9915    Some(size(px(width as f32), px(height as f32)))
 9916}
 9917
 9918/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9919/// appropriate.
 9920///
 9921/// The `border_radius_tiling` parameter allows overriding which corners get
 9922/// rounded, independently of the actual window tiling state. This is used
 9923/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9924/// we want square corners on the left (so the sidebar appears flush with the
 9925/// window edge) but we still need the shadow padding for proper visual
 9926/// appearance. Unlike actual window tiling, this only affects border radius -
 9927/// not padding or shadows.
 9928pub fn client_side_decorations(
 9929    element: impl IntoElement,
 9930    window: &mut Window,
 9931    cx: &mut App,
 9932    border_radius_tiling: Tiling,
 9933) -> Stateful<Div> {
 9934    const BORDER_SIZE: Pixels = px(1.0);
 9935    let decorations = window.window_decorations();
 9936    let tiling = match decorations {
 9937        Decorations::Server => Tiling::default(),
 9938        Decorations::Client { tiling } => tiling,
 9939    };
 9940
 9941    match decorations {
 9942        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9943        Decorations::Server => window.set_client_inset(px(0.0)),
 9944    }
 9945
 9946    struct GlobalResizeEdge(ResizeEdge);
 9947    impl Global for GlobalResizeEdge {}
 9948
 9949    div()
 9950        .id("window-backdrop")
 9951        .bg(transparent_black())
 9952        .map(|div| match decorations {
 9953            Decorations::Server => div,
 9954            Decorations::Client { .. } => div
 9955                .when(
 9956                    !(tiling.top
 9957                        || tiling.right
 9958                        || border_radius_tiling.top
 9959                        || border_radius_tiling.right),
 9960                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9961                )
 9962                .when(
 9963                    !(tiling.top
 9964                        || tiling.left
 9965                        || border_radius_tiling.top
 9966                        || border_radius_tiling.left),
 9967                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9968                )
 9969                .when(
 9970                    !(tiling.bottom
 9971                        || tiling.right
 9972                        || border_radius_tiling.bottom
 9973                        || border_radius_tiling.right),
 9974                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9975                )
 9976                .when(
 9977                    !(tiling.bottom
 9978                        || tiling.left
 9979                        || border_radius_tiling.bottom
 9980                        || border_radius_tiling.left),
 9981                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9982                )
 9983                .when(!tiling.top, |div| {
 9984                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9985                })
 9986                .when(!tiling.bottom, |div| {
 9987                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9988                })
 9989                .when(!tiling.left, |div| {
 9990                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9991                })
 9992                .when(!tiling.right, |div| {
 9993                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9994                })
 9995                .on_mouse_move(move |e, window, cx| {
 9996                    let size = window.window_bounds().get_bounds().size;
 9997                    let pos = e.position;
 9998
 9999                    let new_edge =
10000                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
10001
10002                    let edge = cx.try_global::<GlobalResizeEdge>();
10003                    if new_edge != edge.map(|edge| edge.0) {
10004                        window
10005                            .window_handle()
10006                            .update(cx, |workspace, _, cx| {
10007                                cx.notify(workspace.entity_id());
10008                            })
10009                            .ok();
10010                    }
10011                })
10012                .on_mouse_down(MouseButton::Left, move |e, window, _| {
10013                    let size = window.window_bounds().get_bounds().size;
10014                    let pos = e.position;
10015
10016                    let edge = match resize_edge(
10017                        pos,
10018                        theme::CLIENT_SIDE_DECORATION_SHADOW,
10019                        size,
10020                        tiling,
10021                    ) {
10022                        Some(value) => value,
10023                        None => return,
10024                    };
10025
10026                    window.start_window_resize(edge);
10027                }),
10028        })
10029        .size_full()
10030        .child(
10031            div()
10032                .cursor(CursorStyle::Arrow)
10033                .map(|div| match decorations {
10034                    Decorations::Server => div,
10035                    Decorations::Client { .. } => div
10036                        .border_color(cx.theme().colors().border)
10037                        .when(
10038                            !(tiling.top
10039                                || tiling.right
10040                                || border_radius_tiling.top
10041                                || border_radius_tiling.right),
10042                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10043                        )
10044                        .when(
10045                            !(tiling.top
10046                                || tiling.left
10047                                || border_radius_tiling.top
10048                                || border_radius_tiling.left),
10049                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10050                        )
10051                        .when(
10052                            !(tiling.bottom
10053                                || tiling.right
10054                                || border_radius_tiling.bottom
10055                                || border_radius_tiling.right),
10056                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10057                        )
10058                        .when(
10059                            !(tiling.bottom
10060                                || tiling.left
10061                                || border_radius_tiling.bottom
10062                                || border_radius_tiling.left),
10063                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10064                        )
10065                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
10066                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
10067                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
10068                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
10069                        .when(!tiling.is_tiled(), |div| {
10070                            div.shadow(vec![gpui::BoxShadow {
10071                                color: Hsla {
10072                                    h: 0.,
10073                                    s: 0.,
10074                                    l: 0.,
10075                                    a: 0.4,
10076                                },
10077                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
10078                                spread_radius: px(0.),
10079                                offset: point(px(0.0), px(0.0)),
10080                            }])
10081                        }),
10082                })
10083                .on_mouse_move(|_e, _, cx| {
10084                    cx.stop_propagation();
10085                })
10086                .size_full()
10087                .child(element),
10088        )
10089        .map(|div| match decorations {
10090            Decorations::Server => div,
10091            Decorations::Client { tiling, .. } => div.child(
10092                canvas(
10093                    |_bounds, window, _| {
10094                        window.insert_hitbox(
10095                            Bounds::new(
10096                                point(px(0.0), px(0.0)),
10097                                window.window_bounds().get_bounds().size,
10098                            ),
10099                            HitboxBehavior::Normal,
10100                        )
10101                    },
10102                    move |_bounds, hitbox, window, cx| {
10103                        let mouse = window.mouse_position();
10104                        let size = window.window_bounds().get_bounds().size;
10105                        let Some(edge) =
10106                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
10107                        else {
10108                            return;
10109                        };
10110                        cx.set_global(GlobalResizeEdge(edge));
10111                        window.set_cursor_style(
10112                            match edge {
10113                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
10114                                ResizeEdge::Left | ResizeEdge::Right => {
10115                                    CursorStyle::ResizeLeftRight
10116                                }
10117                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
10118                                    CursorStyle::ResizeUpLeftDownRight
10119                                }
10120                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
10121                                    CursorStyle::ResizeUpRightDownLeft
10122                                }
10123                            },
10124                            &hitbox,
10125                        );
10126                    },
10127                )
10128                .size_full()
10129                .absolute(),
10130            ),
10131        })
10132}
10133
10134fn resize_edge(
10135    pos: Point<Pixels>,
10136    shadow_size: Pixels,
10137    window_size: Size<Pixels>,
10138    tiling: Tiling,
10139) -> Option<ResizeEdge> {
10140    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
10141    if bounds.contains(&pos) {
10142        return None;
10143    }
10144
10145    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
10146    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10147    if !tiling.top && top_left_bounds.contains(&pos) {
10148        return Some(ResizeEdge::TopLeft);
10149    }
10150
10151    let top_right_bounds = Bounds::new(
10152        Point::new(window_size.width - corner_size.width, px(0.)),
10153        corner_size,
10154    );
10155    if !tiling.top && top_right_bounds.contains(&pos) {
10156        return Some(ResizeEdge::TopRight);
10157    }
10158
10159    let bottom_left_bounds = Bounds::new(
10160        Point::new(px(0.), window_size.height - corner_size.height),
10161        corner_size,
10162    );
10163    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10164        return Some(ResizeEdge::BottomLeft);
10165    }
10166
10167    let bottom_right_bounds = Bounds::new(
10168        Point::new(
10169            window_size.width - corner_size.width,
10170            window_size.height - corner_size.height,
10171        ),
10172        corner_size,
10173    );
10174    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10175        return Some(ResizeEdge::BottomRight);
10176    }
10177
10178    if !tiling.top && pos.y < shadow_size {
10179        Some(ResizeEdge::Top)
10180    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10181        Some(ResizeEdge::Bottom)
10182    } else if !tiling.left && pos.x < shadow_size {
10183        Some(ResizeEdge::Left)
10184    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10185        Some(ResizeEdge::Right)
10186    } else {
10187        None
10188    }
10189}
10190
10191fn join_pane_into_active(
10192    active_pane: &Entity<Pane>,
10193    pane: &Entity<Pane>,
10194    window: &mut Window,
10195    cx: &mut App,
10196) {
10197    if pane == active_pane {
10198    } else if pane.read(cx).items_len() == 0 {
10199        pane.update(cx, |_, cx| {
10200            cx.emit(pane::Event::Remove {
10201                focus_on_pane: None,
10202            });
10203        })
10204    } else {
10205        move_all_items(pane, active_pane, window, cx);
10206    }
10207}
10208
10209fn move_all_items(
10210    from_pane: &Entity<Pane>,
10211    to_pane: &Entity<Pane>,
10212    window: &mut Window,
10213    cx: &mut App,
10214) {
10215    let destination_is_different = from_pane != to_pane;
10216    let mut moved_items = 0;
10217    for (item_ix, item_handle) in from_pane
10218        .read(cx)
10219        .items()
10220        .enumerate()
10221        .map(|(ix, item)| (ix, item.clone()))
10222        .collect::<Vec<_>>()
10223    {
10224        let ix = item_ix - moved_items;
10225        if destination_is_different {
10226            // Close item from previous pane
10227            from_pane.update(cx, |source, cx| {
10228                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10229            });
10230            moved_items += 1;
10231        }
10232
10233        // This automatically removes duplicate items in the pane
10234        to_pane.update(cx, |destination, cx| {
10235            destination.add_item(item_handle, true, true, None, window, cx);
10236            window.focus(&destination.focus_handle(cx), cx)
10237        });
10238    }
10239}
10240
10241pub fn move_item(
10242    source: &Entity<Pane>,
10243    destination: &Entity<Pane>,
10244    item_id_to_move: EntityId,
10245    destination_index: usize,
10246    activate: bool,
10247    window: &mut Window,
10248    cx: &mut App,
10249) {
10250    let Some((item_ix, item_handle)) = source
10251        .read(cx)
10252        .items()
10253        .enumerate()
10254        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10255        .map(|(ix, item)| (ix, item.clone()))
10256    else {
10257        // Tab was closed during drag
10258        return;
10259    };
10260
10261    if source != destination {
10262        // Close item from previous pane
10263        source.update(cx, |source, cx| {
10264            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10265        });
10266    }
10267
10268    // This automatically removes duplicate items in the pane
10269    destination.update(cx, |destination, cx| {
10270        destination.add_item_inner(
10271            item_handle,
10272            activate,
10273            activate,
10274            activate,
10275            Some(destination_index),
10276            window,
10277            cx,
10278        );
10279        if activate {
10280            window.focus(&destination.focus_handle(cx), cx)
10281        }
10282    });
10283}
10284
10285pub fn move_active_item(
10286    source: &Entity<Pane>,
10287    destination: &Entity<Pane>,
10288    focus_destination: bool,
10289    close_if_empty: bool,
10290    window: &mut Window,
10291    cx: &mut App,
10292) {
10293    if source == destination {
10294        return;
10295    }
10296    let Some(active_item) = source.read(cx).active_item() else {
10297        return;
10298    };
10299    source.update(cx, |source_pane, cx| {
10300        let item_id = active_item.item_id();
10301        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10302        destination.update(cx, |target_pane, cx| {
10303            target_pane.add_item(
10304                active_item,
10305                focus_destination,
10306                focus_destination,
10307                Some(target_pane.items_len()),
10308                window,
10309                cx,
10310            );
10311        });
10312    });
10313}
10314
10315pub fn clone_active_item(
10316    workspace_id: Option<WorkspaceId>,
10317    source: &Entity<Pane>,
10318    destination: &Entity<Pane>,
10319    focus_destination: bool,
10320    window: &mut Window,
10321    cx: &mut App,
10322) {
10323    if source == destination {
10324        return;
10325    }
10326    let Some(active_item) = source.read(cx).active_item() else {
10327        return;
10328    };
10329    if !active_item.can_split(cx) {
10330        return;
10331    }
10332    let destination = destination.downgrade();
10333    let task = active_item.clone_on_split(workspace_id, window, cx);
10334    window
10335        .spawn(cx, async move |cx| {
10336            let Some(clone) = task.await else {
10337                return;
10338            };
10339            destination
10340                .update_in(cx, |target_pane, window, cx| {
10341                    target_pane.add_item(
10342                        clone,
10343                        focus_destination,
10344                        focus_destination,
10345                        Some(target_pane.items_len()),
10346                        window,
10347                        cx,
10348                    );
10349                })
10350                .log_err();
10351        })
10352        .detach();
10353}
10354
10355#[derive(Debug)]
10356pub struct WorkspacePosition {
10357    pub window_bounds: Option<WindowBounds>,
10358    pub display: Option<Uuid>,
10359    pub centered_layout: bool,
10360}
10361
10362pub fn remote_workspace_position_from_db(
10363    connection_options: RemoteConnectionOptions,
10364    paths_to_open: &[PathBuf],
10365    cx: &App,
10366) -> Task<Result<WorkspacePosition>> {
10367    let paths = paths_to_open.to_vec();
10368    let db = WorkspaceDb::global(cx);
10369    let kvp = db::kvp::KeyValueStore::global(cx);
10370
10371    cx.background_spawn(async move {
10372        let remote_connection_id = db
10373            .get_or_create_remote_connection(connection_options)
10374            .await
10375            .context("fetching serialized ssh project")?;
10376        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10377
10378        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10379            (Some(WindowBounds::Windowed(bounds)), None)
10380        } else {
10381            let restorable_bounds = serialized_workspace
10382                .as_ref()
10383                .and_then(|workspace| {
10384                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10385                })
10386                .or_else(|| persistence::read_default_window_bounds(&kvp));
10387
10388            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10389                (Some(serialized_bounds), Some(serialized_display))
10390            } else {
10391                (None, None)
10392            }
10393        };
10394
10395        let centered_layout = serialized_workspace
10396            .as_ref()
10397            .map(|w| w.centered_layout)
10398            .unwrap_or(false);
10399
10400        Ok(WorkspacePosition {
10401            window_bounds,
10402            display,
10403            centered_layout,
10404        })
10405    })
10406}
10407
10408pub fn with_active_or_new_workspace(
10409    cx: &mut App,
10410    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10411) {
10412    match cx
10413        .active_window()
10414        .and_then(|w| w.downcast::<MultiWorkspace>())
10415    {
10416        Some(multi_workspace) => {
10417            cx.defer(move |cx| {
10418                multi_workspace
10419                    .update(cx, |multi_workspace, window, cx| {
10420                        let workspace = multi_workspace.workspace().clone();
10421                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10422                    })
10423                    .log_err();
10424            });
10425        }
10426        None => {
10427            let app_state = AppState::global(cx);
10428            open_new(
10429                OpenOptions::default(),
10430                app_state,
10431                cx,
10432                move |workspace, window, cx| f(workspace, window, cx),
10433            )
10434            .detach_and_log_err(cx);
10435        }
10436    }
10437}
10438
10439/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10440/// key. This migration path only runs once per panel per workspace.
10441fn load_legacy_panel_size(
10442    panel_key: &str,
10443    dock_position: DockPosition,
10444    workspace: &Workspace,
10445    cx: &mut App,
10446) -> Option<Pixels> {
10447    #[derive(Deserialize)]
10448    struct LegacyPanelState {
10449        #[serde(default)]
10450        width: Option<Pixels>,
10451        #[serde(default)]
10452        height: Option<Pixels>,
10453    }
10454
10455    let workspace_id = workspace
10456        .database_id()
10457        .map(|id| i64::from(id).to_string())
10458        .or_else(|| workspace.session_id())?;
10459
10460    let legacy_key = match panel_key {
10461        "ProjectPanel" => {
10462            format!("{}-{:?}", "ProjectPanel", workspace_id)
10463        }
10464        "OutlinePanel" => {
10465            format!("{}-{:?}", "OutlinePanel", workspace_id)
10466        }
10467        "GitPanel" => {
10468            format!("{}-{:?}", "GitPanel", workspace_id)
10469        }
10470        "TerminalPanel" => {
10471            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10472        }
10473        _ => return None,
10474    };
10475
10476    let kvp = db::kvp::KeyValueStore::global(cx);
10477    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10478    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10479    let size = match dock_position {
10480        DockPosition::Bottom => state.height,
10481        DockPosition::Left | DockPosition::Right => state.width,
10482    }?;
10483
10484    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10485        .detach_and_log_err(cx);
10486
10487    Some(size)
10488}
10489
10490#[cfg(test)]
10491mod tests {
10492    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10493
10494    use super::*;
10495    use crate::{
10496        dock::{PanelEvent, test::TestPanel},
10497        item::{
10498            ItemBufferKind, ItemEvent,
10499            test::{TestItem, TestProjectItem},
10500        },
10501    };
10502    use fs::FakeFs;
10503    use gpui::{
10504        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10505        UpdateGlobal, VisualTestContext, px,
10506    };
10507    use project::{Project, ProjectEntryId};
10508    use serde_json::json;
10509    use settings::SettingsStore;
10510    use util::path;
10511    use util::rel_path::rel_path;
10512
10513    #[gpui::test]
10514    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10515        init_test(cx);
10516
10517        let fs = FakeFs::new(cx.executor());
10518        let project = Project::test(fs, [], cx).await;
10519        let (workspace, cx) =
10520            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10521
10522        // Adding an item with no ambiguity renders the tab without detail.
10523        let item1 = cx.new(|cx| {
10524            let mut item = TestItem::new(cx);
10525            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10526            item
10527        });
10528        workspace.update_in(cx, |workspace, window, cx| {
10529            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10530        });
10531        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10532
10533        // Adding an item that creates ambiguity increases the level of detail on
10534        // both tabs.
10535        let item2 = cx.new_window_entity(|_window, cx| {
10536            let mut item = TestItem::new(cx);
10537            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10538            item
10539        });
10540        workspace.update_in(cx, |workspace, window, cx| {
10541            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10542        });
10543        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10544        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10545
10546        // Adding an item that creates ambiguity increases the level of detail only
10547        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10548        // we stop at the highest detail available.
10549        let item3 = cx.new(|cx| {
10550            let mut item = TestItem::new(cx);
10551            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10552            item
10553        });
10554        workspace.update_in(cx, |workspace, window, cx| {
10555            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10556        });
10557        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10558        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10559        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10560    }
10561
10562    #[gpui::test]
10563    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10564        init_test(cx);
10565
10566        let fs = FakeFs::new(cx.executor());
10567        fs.insert_tree(
10568            "/root1",
10569            json!({
10570                "one.txt": "",
10571                "two.txt": "",
10572            }),
10573        )
10574        .await;
10575        fs.insert_tree(
10576            "/root2",
10577            json!({
10578                "three.txt": "",
10579            }),
10580        )
10581        .await;
10582
10583        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10584        let (workspace, cx) =
10585            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10586        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10587        let worktree_id = project.update(cx, |project, cx| {
10588            project.worktrees(cx).next().unwrap().read(cx).id()
10589        });
10590
10591        let item1 = cx.new(|cx| {
10592            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10593        });
10594        let item2 = cx.new(|cx| {
10595            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10596        });
10597
10598        // Add an item to an empty pane
10599        workspace.update_in(cx, |workspace, window, cx| {
10600            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10601        });
10602        project.update(cx, |project, cx| {
10603            assert_eq!(
10604                project.active_entry(),
10605                project
10606                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10607                    .map(|e| e.id)
10608            );
10609        });
10610        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10611
10612        // Add a second item to a non-empty pane
10613        workspace.update_in(cx, |workspace, window, cx| {
10614            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10615        });
10616        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10617        project.update(cx, |project, cx| {
10618            assert_eq!(
10619                project.active_entry(),
10620                project
10621                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10622                    .map(|e| e.id)
10623            );
10624        });
10625
10626        // Close the active item
10627        pane.update_in(cx, |pane, window, cx| {
10628            pane.close_active_item(&Default::default(), window, cx)
10629        })
10630        .await
10631        .unwrap();
10632        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10633        project.update(cx, |project, cx| {
10634            assert_eq!(
10635                project.active_entry(),
10636                project
10637                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10638                    .map(|e| e.id)
10639            );
10640        });
10641
10642        // Add a project folder
10643        project
10644            .update(cx, |project, cx| {
10645                project.find_or_create_worktree("root2", true, cx)
10646            })
10647            .await
10648            .unwrap();
10649        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10650
10651        // Remove a project folder
10652        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10653        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10654    }
10655
10656    #[gpui::test]
10657    async fn test_close_window(cx: &mut TestAppContext) {
10658        init_test(cx);
10659
10660        let fs = FakeFs::new(cx.executor());
10661        fs.insert_tree("/root", json!({ "one": "" })).await;
10662
10663        let project = Project::test(fs, ["root".as_ref()], cx).await;
10664        let (workspace, cx) =
10665            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10666
10667        // When there are no dirty items, there's nothing to do.
10668        let item1 = cx.new(TestItem::new);
10669        workspace.update_in(cx, |w, window, cx| {
10670            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10671        });
10672        let task = workspace.update_in(cx, |w, window, cx| {
10673            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10674        });
10675        assert!(task.await.unwrap());
10676
10677        // When there are dirty untitled items, prompt to save each one. If the user
10678        // cancels any prompt, then abort.
10679        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10680        let item3 = cx.new(|cx| {
10681            TestItem::new(cx)
10682                .with_dirty(true)
10683                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10684        });
10685        workspace.update_in(cx, |w, window, cx| {
10686            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10687            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10688        });
10689        let task = workspace.update_in(cx, |w, window, cx| {
10690            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10691        });
10692        cx.executor().run_until_parked();
10693        cx.simulate_prompt_answer("Cancel"); // cancel save all
10694        cx.executor().run_until_parked();
10695        assert!(!cx.has_pending_prompt());
10696        assert!(!task.await.unwrap());
10697    }
10698
10699    #[gpui::test]
10700    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10701        init_test(cx);
10702
10703        let fs = FakeFs::new(cx.executor());
10704        fs.insert_tree("/root", json!({ "one": "" })).await;
10705
10706        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10707        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10708        let multi_workspace_handle =
10709            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10710        cx.run_until_parked();
10711
10712        let workspace_a = multi_workspace_handle
10713            .read_with(cx, |mw, _| mw.workspace().clone())
10714            .unwrap();
10715
10716        let workspace_b = multi_workspace_handle
10717            .update(cx, |mw, window, cx| {
10718                mw.test_add_workspace(project_b, window, cx)
10719            })
10720            .unwrap();
10721
10722        // Activate workspace A
10723        multi_workspace_handle
10724            .update(cx, |mw, window, cx| {
10725                let workspace = mw.workspaces()[0].clone();
10726                mw.activate(workspace, window, cx);
10727            })
10728            .unwrap();
10729
10730        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10731
10732        // Workspace A has a clean item
10733        let item_a = cx.new(TestItem::new);
10734        workspace_a.update_in(cx, |w, window, cx| {
10735            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10736        });
10737
10738        // Workspace B has a dirty item
10739        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10740        workspace_b.update_in(cx, |w, window, cx| {
10741            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10742        });
10743
10744        // Verify workspace A is active
10745        multi_workspace_handle
10746            .read_with(cx, |mw, _| {
10747                assert_eq!(mw.active_workspace_index(), 0);
10748            })
10749            .unwrap();
10750
10751        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10752        multi_workspace_handle
10753            .update(cx, |mw, window, cx| {
10754                mw.close_window(&CloseWindow, window, cx);
10755            })
10756            .unwrap();
10757        cx.run_until_parked();
10758
10759        // Workspace B should now be active since it has dirty items that need attention
10760        multi_workspace_handle
10761            .read_with(cx, |mw, _| {
10762                assert_eq!(
10763                    mw.active_workspace_index(),
10764                    1,
10765                    "workspace B should be activated when it prompts"
10766                );
10767            })
10768            .unwrap();
10769
10770        // User cancels the save prompt from workspace B
10771        cx.simulate_prompt_answer("Cancel");
10772        cx.run_until_parked();
10773
10774        // Window should still exist because workspace B's close was cancelled
10775        assert!(
10776            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10777            "window should still exist after cancelling one workspace's close"
10778        );
10779    }
10780
10781    #[gpui::test]
10782    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10783        init_test(cx);
10784
10785        // Register TestItem as a serializable item
10786        cx.update(|cx| {
10787            register_serializable_item::<TestItem>(cx);
10788        });
10789
10790        let fs = FakeFs::new(cx.executor());
10791        fs.insert_tree("/root", json!({ "one": "" })).await;
10792
10793        let project = Project::test(fs, ["root".as_ref()], cx).await;
10794        let (workspace, cx) =
10795            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10796
10797        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10798        let item1 = cx.new(|cx| {
10799            TestItem::new(cx)
10800                .with_dirty(true)
10801                .with_serialize(|| Some(Task::ready(Ok(()))))
10802        });
10803        let item2 = cx.new(|cx| {
10804            TestItem::new(cx)
10805                .with_dirty(true)
10806                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10807                .with_serialize(|| Some(Task::ready(Ok(()))))
10808        });
10809        workspace.update_in(cx, |w, window, cx| {
10810            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10811            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10812        });
10813        let task = workspace.update_in(cx, |w, window, cx| {
10814            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10815        });
10816        assert!(task.await.unwrap());
10817    }
10818
10819    #[gpui::test]
10820    async fn test_close_pane_items(cx: &mut TestAppContext) {
10821        init_test(cx);
10822
10823        let fs = FakeFs::new(cx.executor());
10824
10825        let project = Project::test(fs, None, cx).await;
10826        let (workspace, cx) =
10827            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10828
10829        let item1 = cx.new(|cx| {
10830            TestItem::new(cx)
10831                .with_dirty(true)
10832                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10833        });
10834        let item2 = cx.new(|cx| {
10835            TestItem::new(cx)
10836                .with_dirty(true)
10837                .with_conflict(true)
10838                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10839        });
10840        let item3 = cx.new(|cx| {
10841            TestItem::new(cx)
10842                .with_dirty(true)
10843                .with_conflict(true)
10844                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10845        });
10846        let item4 = cx.new(|cx| {
10847            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10848                let project_item = TestProjectItem::new_untitled(cx);
10849                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10850                project_item
10851            }])
10852        });
10853        let pane = workspace.update_in(cx, |workspace, window, cx| {
10854            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10855            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10856            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10857            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10858            workspace.active_pane().clone()
10859        });
10860
10861        let close_items = pane.update_in(cx, |pane, window, cx| {
10862            pane.activate_item(1, true, true, window, cx);
10863            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10864            let item1_id = item1.item_id();
10865            let item3_id = item3.item_id();
10866            let item4_id = item4.item_id();
10867            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10868                [item1_id, item3_id, item4_id].contains(&id)
10869            })
10870        });
10871        cx.executor().run_until_parked();
10872
10873        assert!(cx.has_pending_prompt());
10874        cx.simulate_prompt_answer("Save all");
10875
10876        cx.executor().run_until_parked();
10877
10878        // Item 1 is saved. There's a prompt to save item 3.
10879        pane.update(cx, |pane, cx| {
10880            assert_eq!(item1.read(cx).save_count, 1);
10881            assert_eq!(item1.read(cx).save_as_count, 0);
10882            assert_eq!(item1.read(cx).reload_count, 0);
10883            assert_eq!(pane.items_len(), 3);
10884            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10885        });
10886        assert!(cx.has_pending_prompt());
10887
10888        // Cancel saving item 3.
10889        cx.simulate_prompt_answer("Discard");
10890        cx.executor().run_until_parked();
10891
10892        // Item 3 is reloaded. There's a prompt to save item 4.
10893        pane.update(cx, |pane, cx| {
10894            assert_eq!(item3.read(cx).save_count, 0);
10895            assert_eq!(item3.read(cx).save_as_count, 0);
10896            assert_eq!(item3.read(cx).reload_count, 1);
10897            assert_eq!(pane.items_len(), 2);
10898            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10899        });
10900
10901        // There's a prompt for a path for item 4.
10902        cx.simulate_new_path_selection(|_| Some(Default::default()));
10903        close_items.await.unwrap();
10904
10905        // The requested items are closed.
10906        pane.update(cx, |pane, cx| {
10907            assert_eq!(item4.read(cx).save_count, 0);
10908            assert_eq!(item4.read(cx).save_as_count, 1);
10909            assert_eq!(item4.read(cx).reload_count, 0);
10910            assert_eq!(pane.items_len(), 1);
10911            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10912        });
10913    }
10914
10915    #[gpui::test]
10916    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10917        init_test(cx);
10918
10919        let fs = FakeFs::new(cx.executor());
10920        let project = Project::test(fs, [], cx).await;
10921        let (workspace, cx) =
10922            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10923
10924        // Create several workspace items with single project entries, and two
10925        // workspace items with multiple project entries.
10926        let single_entry_items = (0..=4)
10927            .map(|project_entry_id| {
10928                cx.new(|cx| {
10929                    TestItem::new(cx)
10930                        .with_dirty(true)
10931                        .with_project_items(&[dirty_project_item(
10932                            project_entry_id,
10933                            &format!("{project_entry_id}.txt"),
10934                            cx,
10935                        )])
10936                })
10937            })
10938            .collect::<Vec<_>>();
10939        let item_2_3 = cx.new(|cx| {
10940            TestItem::new(cx)
10941                .with_dirty(true)
10942                .with_buffer_kind(ItemBufferKind::Multibuffer)
10943                .with_project_items(&[
10944                    single_entry_items[2].read(cx).project_items[0].clone(),
10945                    single_entry_items[3].read(cx).project_items[0].clone(),
10946                ])
10947        });
10948        let item_3_4 = cx.new(|cx| {
10949            TestItem::new(cx)
10950                .with_dirty(true)
10951                .with_buffer_kind(ItemBufferKind::Multibuffer)
10952                .with_project_items(&[
10953                    single_entry_items[3].read(cx).project_items[0].clone(),
10954                    single_entry_items[4].read(cx).project_items[0].clone(),
10955                ])
10956        });
10957
10958        // Create two panes that contain the following project entries:
10959        //   left pane:
10960        //     multi-entry items:   (2, 3)
10961        //     single-entry items:  0, 2, 3, 4
10962        //   right pane:
10963        //     single-entry items:  4, 1
10964        //     multi-entry items:   (3, 4)
10965        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10966            let left_pane = workspace.active_pane().clone();
10967            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10968            workspace.add_item_to_active_pane(
10969                single_entry_items[0].boxed_clone(),
10970                None,
10971                true,
10972                window,
10973                cx,
10974            );
10975            workspace.add_item_to_active_pane(
10976                single_entry_items[2].boxed_clone(),
10977                None,
10978                true,
10979                window,
10980                cx,
10981            );
10982            workspace.add_item_to_active_pane(
10983                single_entry_items[3].boxed_clone(),
10984                None,
10985                true,
10986                window,
10987                cx,
10988            );
10989            workspace.add_item_to_active_pane(
10990                single_entry_items[4].boxed_clone(),
10991                None,
10992                true,
10993                window,
10994                cx,
10995            );
10996
10997            let right_pane =
10998                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10999
11000            let boxed_clone = single_entry_items[1].boxed_clone();
11001            let right_pane = window.spawn(cx, async move |cx| {
11002                right_pane.await.inspect(|right_pane| {
11003                    right_pane
11004                        .update_in(cx, |pane, window, cx| {
11005                            pane.add_item(boxed_clone, true, true, None, window, cx);
11006                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
11007                        })
11008                        .unwrap();
11009                })
11010            });
11011
11012            (left_pane, right_pane)
11013        });
11014        let right_pane = right_pane.await.unwrap();
11015        cx.focus(&right_pane);
11016
11017        let close = right_pane.update_in(cx, |pane, window, cx| {
11018            pane.close_all_items(&CloseAllItems::default(), window, cx)
11019                .unwrap()
11020        });
11021        cx.executor().run_until_parked();
11022
11023        let msg = cx.pending_prompt().unwrap().0;
11024        assert!(msg.contains("1.txt"));
11025        assert!(!msg.contains("2.txt"));
11026        assert!(!msg.contains("3.txt"));
11027        assert!(!msg.contains("4.txt"));
11028
11029        // With best-effort close, cancelling item 1 keeps it open but items 4
11030        // and (3,4) still close since their entries exist in left pane.
11031        cx.simulate_prompt_answer("Cancel");
11032        close.await;
11033
11034        right_pane.read_with(cx, |pane, _| {
11035            assert_eq!(pane.items_len(), 1);
11036        });
11037
11038        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
11039        left_pane
11040            .update_in(cx, |left_pane, window, cx| {
11041                left_pane.close_item_by_id(
11042                    single_entry_items[3].entity_id(),
11043                    SaveIntent::Skip,
11044                    window,
11045                    cx,
11046                )
11047            })
11048            .await
11049            .unwrap();
11050
11051        let close = left_pane.update_in(cx, |pane, window, cx| {
11052            pane.close_all_items(&CloseAllItems::default(), window, cx)
11053                .unwrap()
11054        });
11055        cx.executor().run_until_parked();
11056
11057        let details = cx.pending_prompt().unwrap().1;
11058        assert!(details.contains("0.txt"));
11059        assert!(details.contains("3.txt"));
11060        assert!(details.contains("4.txt"));
11061        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
11062        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
11063        // assert!(!details.contains("2.txt"));
11064
11065        cx.simulate_prompt_answer("Save all");
11066        cx.executor().run_until_parked();
11067        close.await;
11068
11069        left_pane.read_with(cx, |pane, _| {
11070            assert_eq!(pane.items_len(), 0);
11071        });
11072    }
11073
11074    #[gpui::test]
11075    async fn test_autosave(cx: &mut gpui::TestAppContext) {
11076        init_test(cx);
11077
11078        let fs = FakeFs::new(cx.executor());
11079        let project = Project::test(fs, [], cx).await;
11080        let (workspace, cx) =
11081            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11082        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11083
11084        let item = cx.new(|cx| {
11085            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11086        });
11087        let item_id = item.entity_id();
11088        workspace.update_in(cx, |workspace, window, cx| {
11089            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11090        });
11091
11092        // Autosave on window change.
11093        item.update(cx, |item, cx| {
11094            SettingsStore::update_global(cx, |settings, cx| {
11095                settings.update_user_settings(cx, |settings| {
11096                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
11097                })
11098            });
11099            item.is_dirty = true;
11100        });
11101
11102        // Deactivating the window saves the file.
11103        cx.deactivate_window();
11104        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11105
11106        // Re-activating the window doesn't save the file.
11107        cx.update(|window, _| window.activate_window());
11108        cx.executor().run_until_parked();
11109        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11110
11111        // Autosave on focus change.
11112        item.update_in(cx, |item, window, cx| {
11113            cx.focus_self(window);
11114            SettingsStore::update_global(cx, |settings, cx| {
11115                settings.update_user_settings(cx, |settings| {
11116                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11117                })
11118            });
11119            item.is_dirty = true;
11120        });
11121        // Blurring the item saves the file.
11122        item.update_in(cx, |_, window, _| window.blur());
11123        cx.executor().run_until_parked();
11124        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
11125
11126        // Deactivating the window still saves the file.
11127        item.update_in(cx, |item, window, cx| {
11128            cx.focus_self(window);
11129            item.is_dirty = true;
11130        });
11131        cx.deactivate_window();
11132        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
11133
11134        // Autosave after delay.
11135        item.update(cx, |item, cx| {
11136            SettingsStore::update_global(cx, |settings, cx| {
11137                settings.update_user_settings(cx, |settings| {
11138                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
11139                        milliseconds: 500.into(),
11140                    });
11141                })
11142            });
11143            item.is_dirty = true;
11144            cx.emit(ItemEvent::Edit);
11145        });
11146
11147        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11148        cx.executor().advance_clock(Duration::from_millis(250));
11149        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11150
11151        // After delay expires, the file is saved.
11152        cx.executor().advance_clock(Duration::from_millis(250));
11153        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11154
11155        // Autosave after delay, should save earlier than delay if tab is closed
11156        item.update(cx, |item, cx| {
11157            item.is_dirty = true;
11158            cx.emit(ItemEvent::Edit);
11159        });
11160        cx.executor().advance_clock(Duration::from_millis(250));
11161        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11162
11163        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11164        pane.update_in(cx, |pane, window, cx| {
11165            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11166        })
11167        .await
11168        .unwrap();
11169        assert!(!cx.has_pending_prompt());
11170        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11171
11172        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11173        workspace.update_in(cx, |workspace, window, cx| {
11174            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11175        });
11176        item.update_in(cx, |item, _window, cx| {
11177            item.is_dirty = true;
11178            for project_item in &mut item.project_items {
11179                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11180            }
11181        });
11182        cx.run_until_parked();
11183        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11184
11185        // Autosave on focus change, ensuring closing the tab counts as such.
11186        item.update(cx, |item, cx| {
11187            SettingsStore::update_global(cx, |settings, cx| {
11188                settings.update_user_settings(cx, |settings| {
11189                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11190                })
11191            });
11192            item.is_dirty = true;
11193            for project_item in &mut item.project_items {
11194                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11195            }
11196        });
11197
11198        pane.update_in(cx, |pane, window, cx| {
11199            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11200        })
11201        .await
11202        .unwrap();
11203        assert!(!cx.has_pending_prompt());
11204        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11205
11206        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11207        workspace.update_in(cx, |workspace, window, cx| {
11208            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11209        });
11210        item.update_in(cx, |item, window, cx| {
11211            item.project_items[0].update(cx, |item, _| {
11212                item.entry_id = None;
11213            });
11214            item.is_dirty = true;
11215            window.blur();
11216        });
11217        cx.run_until_parked();
11218        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11219
11220        // Ensure autosave is prevented for deleted files also when closing the buffer.
11221        let _close_items = pane.update_in(cx, |pane, window, cx| {
11222            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11223        });
11224        cx.run_until_parked();
11225        assert!(cx.has_pending_prompt());
11226        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11227    }
11228
11229    #[gpui::test]
11230    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11231        init_test(cx);
11232
11233        let fs = FakeFs::new(cx.executor());
11234        let project = Project::test(fs, [], cx).await;
11235        let (workspace, cx) =
11236            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11237
11238        // Create a multibuffer-like item with two child focus handles,
11239        // simulating individual buffer editors within a multibuffer.
11240        let item = cx.new(|cx| {
11241            TestItem::new(cx)
11242                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11243                .with_child_focus_handles(2, cx)
11244        });
11245        workspace.update_in(cx, |workspace, window, cx| {
11246            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11247        });
11248
11249        // Set autosave to OnFocusChange and focus the first child handle,
11250        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11251        item.update_in(cx, |item, window, cx| {
11252            SettingsStore::update_global(cx, |settings, cx| {
11253                settings.update_user_settings(cx, |settings| {
11254                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11255                })
11256            });
11257            item.is_dirty = true;
11258            window.focus(&item.child_focus_handles[0], cx);
11259        });
11260        cx.executor().run_until_parked();
11261        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11262
11263        // Moving focus from one child to another within the same item should
11264        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11265        item.update_in(cx, |item, window, cx| {
11266            window.focus(&item.child_focus_handles[1], cx);
11267        });
11268        cx.executor().run_until_parked();
11269        item.read_with(cx, |item, _| {
11270            assert_eq!(
11271                item.save_count, 0,
11272                "Switching focus between children within the same item should not autosave"
11273            );
11274        });
11275
11276        // Blurring the item saves the file. This is the core regression scenario:
11277        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11278        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11279        // the leaf is always a child focus handle, so `on_blur` never detected
11280        // focus leaving the item.
11281        item.update_in(cx, |_, window, _| window.blur());
11282        cx.executor().run_until_parked();
11283        item.read_with(cx, |item, _| {
11284            assert_eq!(
11285                item.save_count, 1,
11286                "Blurring should trigger autosave when focus was on a child of the item"
11287            );
11288        });
11289
11290        // Deactivating the window should also trigger autosave when a child of
11291        // the multibuffer item currently owns focus.
11292        item.update_in(cx, |item, window, cx| {
11293            item.is_dirty = true;
11294            window.focus(&item.child_focus_handles[0], cx);
11295        });
11296        cx.executor().run_until_parked();
11297        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11298
11299        cx.deactivate_window();
11300        item.read_with(cx, |item, _| {
11301            assert_eq!(
11302                item.save_count, 2,
11303                "Deactivating window should trigger autosave when focus was on a child"
11304            );
11305        });
11306    }
11307
11308    #[gpui::test]
11309    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11310        init_test(cx);
11311
11312        let fs = FakeFs::new(cx.executor());
11313
11314        let project = Project::test(fs, [], cx).await;
11315        let (workspace, cx) =
11316            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11317
11318        let item = cx.new(|cx| {
11319            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11320        });
11321        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11322        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11323        let toolbar_notify_count = Rc::new(RefCell::new(0));
11324
11325        workspace.update_in(cx, |workspace, window, cx| {
11326            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11327            let toolbar_notification_count = toolbar_notify_count.clone();
11328            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11329                *toolbar_notification_count.borrow_mut() += 1
11330            })
11331            .detach();
11332        });
11333
11334        pane.read_with(cx, |pane, _| {
11335            assert!(!pane.can_navigate_backward());
11336            assert!(!pane.can_navigate_forward());
11337        });
11338
11339        item.update_in(cx, |item, _, cx| {
11340            item.set_state("one".to_string(), cx);
11341        });
11342
11343        // Toolbar must be notified to re-render the navigation buttons
11344        assert_eq!(*toolbar_notify_count.borrow(), 1);
11345
11346        pane.read_with(cx, |pane, _| {
11347            assert!(pane.can_navigate_backward());
11348            assert!(!pane.can_navigate_forward());
11349        });
11350
11351        workspace
11352            .update_in(cx, |workspace, window, cx| {
11353                workspace.go_back(pane.downgrade(), window, cx)
11354            })
11355            .await
11356            .unwrap();
11357
11358        assert_eq!(*toolbar_notify_count.borrow(), 2);
11359        pane.read_with(cx, |pane, _| {
11360            assert!(!pane.can_navigate_backward());
11361            assert!(pane.can_navigate_forward());
11362        });
11363    }
11364
11365    /// Tests that the navigation history deduplicates entries for the same item.
11366    ///
11367    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11368    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11369    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11370    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11371    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11372    ///
11373    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11374    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11375    #[gpui::test]
11376    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11377        init_test(cx);
11378
11379        let fs = FakeFs::new(cx.executor());
11380        let project = Project::test(fs, [], cx).await;
11381        let (workspace, cx) =
11382            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11383
11384        let item_a = cx.new(|cx| {
11385            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11386        });
11387        let item_b = cx.new(|cx| {
11388            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11389        });
11390        let item_c = cx.new(|cx| {
11391            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11392        });
11393
11394        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11395
11396        workspace.update_in(cx, |workspace, window, cx| {
11397            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11398            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11399            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11400        });
11401
11402        workspace.update_in(cx, |workspace, window, cx| {
11403            workspace.activate_item(&item_a, false, false, window, cx);
11404        });
11405        cx.run_until_parked();
11406
11407        workspace.update_in(cx, |workspace, window, cx| {
11408            workspace.activate_item(&item_b, false, false, window, cx);
11409        });
11410        cx.run_until_parked();
11411
11412        workspace.update_in(cx, |workspace, window, cx| {
11413            workspace.activate_item(&item_a, false, false, window, cx);
11414        });
11415        cx.run_until_parked();
11416
11417        workspace.update_in(cx, |workspace, window, cx| {
11418            workspace.activate_item(&item_b, false, false, window, cx);
11419        });
11420        cx.run_until_parked();
11421
11422        workspace.update_in(cx, |workspace, window, cx| {
11423            workspace.activate_item(&item_a, false, false, window, cx);
11424        });
11425        cx.run_until_parked();
11426
11427        workspace.update_in(cx, |workspace, window, cx| {
11428            workspace.activate_item(&item_b, false, false, window, cx);
11429        });
11430        cx.run_until_parked();
11431
11432        workspace.update_in(cx, |workspace, window, cx| {
11433            workspace.activate_item(&item_c, false, false, window, cx);
11434        });
11435        cx.run_until_parked();
11436
11437        let backward_count = pane.read_with(cx, |pane, cx| {
11438            let mut count = 0;
11439            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11440                count += 1;
11441            });
11442            count
11443        });
11444        assert!(
11445            backward_count <= 4,
11446            "Should have at most 4 entries, got {}",
11447            backward_count
11448        );
11449
11450        workspace
11451            .update_in(cx, |workspace, window, cx| {
11452                workspace.go_back(pane.downgrade(), window, cx)
11453            })
11454            .await
11455            .unwrap();
11456
11457        let active_item = workspace.read_with(cx, |workspace, cx| {
11458            workspace.active_item(cx).unwrap().item_id()
11459        });
11460        assert_eq!(
11461            active_item,
11462            item_b.entity_id(),
11463            "After first go_back, should be at item B"
11464        );
11465
11466        workspace
11467            .update_in(cx, |workspace, window, cx| {
11468                workspace.go_back(pane.downgrade(), window, cx)
11469            })
11470            .await
11471            .unwrap();
11472
11473        let active_item = workspace.read_with(cx, |workspace, cx| {
11474            workspace.active_item(cx).unwrap().item_id()
11475        });
11476        assert_eq!(
11477            active_item,
11478            item_a.entity_id(),
11479            "After second go_back, should be at item A"
11480        );
11481
11482        pane.read_with(cx, |pane, _| {
11483            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11484        });
11485    }
11486
11487    #[gpui::test]
11488    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11489        init_test(cx);
11490        let fs = FakeFs::new(cx.executor());
11491        let project = Project::test(fs, [], cx).await;
11492        let (multi_workspace, cx) =
11493            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11494        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11495
11496        workspace.update_in(cx, |workspace, window, cx| {
11497            let first_item = cx.new(|cx| {
11498                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11499            });
11500            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11501            workspace.split_pane(
11502                workspace.active_pane().clone(),
11503                SplitDirection::Right,
11504                window,
11505                cx,
11506            );
11507            workspace.split_pane(
11508                workspace.active_pane().clone(),
11509                SplitDirection::Right,
11510                window,
11511                cx,
11512            );
11513        });
11514
11515        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11516            let panes = workspace.center.panes();
11517            assert!(panes.len() >= 2);
11518            (
11519                panes.first().expect("at least one pane").entity_id(),
11520                panes.last().expect("at least one pane").entity_id(),
11521            )
11522        });
11523
11524        workspace.update_in(cx, |workspace, window, cx| {
11525            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11526        });
11527        workspace.update(cx, |workspace, _| {
11528            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11529            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11530        });
11531
11532        cx.dispatch_action(ActivateLastPane);
11533
11534        workspace.update(cx, |workspace, _| {
11535            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11536        });
11537    }
11538
11539    #[gpui::test]
11540    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11541        init_test(cx);
11542        let fs = FakeFs::new(cx.executor());
11543
11544        let project = Project::test(fs, [], cx).await;
11545        let (workspace, cx) =
11546            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11547
11548        let panel = workspace.update_in(cx, |workspace, window, cx| {
11549            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11550            workspace.add_panel(panel.clone(), window, cx);
11551
11552            workspace
11553                .right_dock()
11554                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11555
11556            panel
11557        });
11558
11559        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11560        pane.update_in(cx, |pane, window, cx| {
11561            let item = cx.new(TestItem::new);
11562            pane.add_item(Box::new(item), true, true, None, window, cx);
11563        });
11564
11565        // Transfer focus from center to panel
11566        workspace.update_in(cx, |workspace, window, cx| {
11567            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11568        });
11569
11570        workspace.update_in(cx, |workspace, window, cx| {
11571            assert!(workspace.right_dock().read(cx).is_open());
11572            assert!(!panel.is_zoomed(window, cx));
11573            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11574        });
11575
11576        // Transfer focus from panel to center
11577        workspace.update_in(cx, |workspace, window, cx| {
11578            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11579        });
11580
11581        workspace.update_in(cx, |workspace, window, cx| {
11582            assert!(workspace.right_dock().read(cx).is_open());
11583            assert!(!panel.is_zoomed(window, cx));
11584            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11585            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11586        });
11587
11588        // Close the dock
11589        workspace.update_in(cx, |workspace, window, cx| {
11590            workspace.toggle_dock(DockPosition::Right, window, cx);
11591        });
11592
11593        workspace.update_in(cx, |workspace, window, cx| {
11594            assert!(!workspace.right_dock().read(cx).is_open());
11595            assert!(!panel.is_zoomed(window, cx));
11596            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11597            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11598        });
11599
11600        // Open the dock
11601        workspace.update_in(cx, |workspace, window, cx| {
11602            workspace.toggle_dock(DockPosition::Right, window, cx);
11603        });
11604
11605        workspace.update_in(cx, |workspace, window, cx| {
11606            assert!(workspace.right_dock().read(cx).is_open());
11607            assert!(!panel.is_zoomed(window, cx));
11608            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11609        });
11610
11611        // Focus and zoom panel
11612        panel.update_in(cx, |panel, window, cx| {
11613            cx.focus_self(window);
11614            panel.set_zoomed(true, window, cx)
11615        });
11616
11617        workspace.update_in(cx, |workspace, window, cx| {
11618            assert!(workspace.right_dock().read(cx).is_open());
11619            assert!(panel.is_zoomed(window, cx));
11620            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11621        });
11622
11623        // Transfer focus to the center closes the dock
11624        workspace.update_in(cx, |workspace, window, cx| {
11625            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11626        });
11627
11628        workspace.update_in(cx, |workspace, window, cx| {
11629            assert!(!workspace.right_dock().read(cx).is_open());
11630            assert!(panel.is_zoomed(window, cx));
11631            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11632        });
11633
11634        // Transferring focus back to the panel keeps it zoomed
11635        workspace.update_in(cx, |workspace, window, cx| {
11636            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11637        });
11638
11639        workspace.update_in(cx, |workspace, window, cx| {
11640            assert!(workspace.right_dock().read(cx).is_open());
11641            assert!(panel.is_zoomed(window, cx));
11642            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11643        });
11644
11645        // Close the dock while it is zoomed
11646        workspace.update_in(cx, |workspace, window, cx| {
11647            workspace.toggle_dock(DockPosition::Right, window, cx)
11648        });
11649
11650        workspace.update_in(cx, |workspace, window, cx| {
11651            assert!(!workspace.right_dock().read(cx).is_open());
11652            assert!(panel.is_zoomed(window, cx));
11653            assert!(workspace.zoomed.is_none());
11654            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11655        });
11656
11657        // Opening the dock, when it's zoomed, retains focus
11658        workspace.update_in(cx, |workspace, window, cx| {
11659            workspace.toggle_dock(DockPosition::Right, window, cx)
11660        });
11661
11662        workspace.update_in(cx, |workspace, window, cx| {
11663            assert!(workspace.right_dock().read(cx).is_open());
11664            assert!(panel.is_zoomed(window, cx));
11665            assert!(workspace.zoomed.is_some());
11666            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11667        });
11668
11669        // Unzoom and close the panel, zoom the active pane.
11670        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11671        workspace.update_in(cx, |workspace, window, cx| {
11672            workspace.toggle_dock(DockPosition::Right, window, cx)
11673        });
11674        pane.update_in(cx, |pane, window, cx| {
11675            pane.toggle_zoom(&Default::default(), window, cx)
11676        });
11677
11678        // Opening a dock unzooms the pane.
11679        workspace.update_in(cx, |workspace, window, cx| {
11680            workspace.toggle_dock(DockPosition::Right, window, cx)
11681        });
11682        workspace.update_in(cx, |workspace, window, cx| {
11683            let pane = pane.read(cx);
11684            assert!(!pane.is_zoomed());
11685            assert!(!pane.focus_handle(cx).is_focused(window));
11686            assert!(workspace.right_dock().read(cx).is_open());
11687            assert!(workspace.zoomed.is_none());
11688        });
11689    }
11690
11691    #[gpui::test]
11692    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11693        init_test(cx);
11694        let fs = FakeFs::new(cx.executor());
11695
11696        let project = Project::test(fs, [], cx).await;
11697        let (workspace, cx) =
11698            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11699
11700        let panel = workspace.update_in(cx, |workspace, window, cx| {
11701            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11702            workspace.add_panel(panel.clone(), window, cx);
11703            panel
11704        });
11705
11706        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11707        pane.update_in(cx, |pane, window, cx| {
11708            let item = cx.new(TestItem::new);
11709            pane.add_item(Box::new(item), true, true, None, window, cx);
11710        });
11711
11712        // Enable close_panel_on_toggle
11713        cx.update_global(|store: &mut SettingsStore, cx| {
11714            store.update_user_settings(cx, |settings| {
11715                settings.workspace.close_panel_on_toggle = Some(true);
11716            });
11717        });
11718
11719        // Panel starts closed. Toggling should open and focus it.
11720        workspace.update_in(cx, |workspace, window, cx| {
11721            assert!(!workspace.right_dock().read(cx).is_open());
11722            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11723        });
11724
11725        workspace.update_in(cx, |workspace, window, cx| {
11726            assert!(
11727                workspace.right_dock().read(cx).is_open(),
11728                "Dock should be open after toggling from center"
11729            );
11730            assert!(
11731                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11732                "Panel should be focused after toggling from center"
11733            );
11734        });
11735
11736        // Panel is open and focused. Toggling should close the panel and
11737        // return focus to the center.
11738        workspace.update_in(cx, |workspace, window, cx| {
11739            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11740        });
11741
11742        workspace.update_in(cx, |workspace, window, cx| {
11743            assert!(
11744                !workspace.right_dock().read(cx).is_open(),
11745                "Dock should be closed after toggling from focused panel"
11746            );
11747            assert!(
11748                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11749                "Panel should not be focused after toggling from focused panel"
11750            );
11751        });
11752
11753        // Open the dock and focus something else so the panel is open but not
11754        // focused. Toggling should focus the panel (not close it).
11755        workspace.update_in(cx, |workspace, window, cx| {
11756            workspace
11757                .right_dock()
11758                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11759            window.focus(&pane.read(cx).focus_handle(cx), cx);
11760        });
11761
11762        workspace.update_in(cx, |workspace, window, cx| {
11763            assert!(workspace.right_dock().read(cx).is_open());
11764            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11765            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11766        });
11767
11768        workspace.update_in(cx, |workspace, window, cx| {
11769            assert!(
11770                workspace.right_dock().read(cx).is_open(),
11771                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11772            );
11773            assert!(
11774                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11775                "Panel should be focused after toggling an open-but-unfocused panel"
11776            );
11777        });
11778
11779        // Now disable the setting and verify the original behavior: toggling
11780        // from a focused panel moves focus to center but leaves the dock open.
11781        cx.update_global(|store: &mut SettingsStore, cx| {
11782            store.update_user_settings(cx, |settings| {
11783                settings.workspace.close_panel_on_toggle = Some(false);
11784            });
11785        });
11786
11787        workspace.update_in(cx, |workspace, window, cx| {
11788            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11789        });
11790
11791        workspace.update_in(cx, |workspace, window, cx| {
11792            assert!(
11793                workspace.right_dock().read(cx).is_open(),
11794                "Dock should remain open when setting is disabled"
11795            );
11796            assert!(
11797                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11798                "Panel should not be focused after toggling with setting disabled"
11799            );
11800        });
11801    }
11802
11803    #[gpui::test]
11804    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11805        init_test(cx);
11806        let fs = FakeFs::new(cx.executor());
11807
11808        let project = Project::test(fs, [], cx).await;
11809        let (workspace, cx) =
11810            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11811
11812        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11813            workspace.active_pane().clone()
11814        });
11815
11816        // Add an item to the pane so it can be zoomed
11817        workspace.update_in(cx, |workspace, window, cx| {
11818            let item = cx.new(TestItem::new);
11819            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11820        });
11821
11822        // Initially not zoomed
11823        workspace.update_in(cx, |workspace, _window, cx| {
11824            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11825            assert!(
11826                workspace.zoomed.is_none(),
11827                "Workspace should track no zoomed pane"
11828            );
11829            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11830        });
11831
11832        // Zoom In
11833        pane.update_in(cx, |pane, window, cx| {
11834            pane.zoom_in(&crate::ZoomIn, window, cx);
11835        });
11836
11837        workspace.update_in(cx, |workspace, window, cx| {
11838            assert!(
11839                pane.read(cx).is_zoomed(),
11840                "Pane should be zoomed after ZoomIn"
11841            );
11842            assert!(
11843                workspace.zoomed.is_some(),
11844                "Workspace should track the zoomed pane"
11845            );
11846            assert!(
11847                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11848                "ZoomIn should focus the pane"
11849            );
11850        });
11851
11852        // Zoom In again is a no-op
11853        pane.update_in(cx, |pane, window, cx| {
11854            pane.zoom_in(&crate::ZoomIn, window, cx);
11855        });
11856
11857        workspace.update_in(cx, |workspace, window, cx| {
11858            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11859            assert!(
11860                workspace.zoomed.is_some(),
11861                "Workspace still tracks zoomed pane"
11862            );
11863            assert!(
11864                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11865                "Pane remains focused after repeated ZoomIn"
11866            );
11867        });
11868
11869        // Zoom Out
11870        pane.update_in(cx, |pane, window, cx| {
11871            pane.zoom_out(&crate::ZoomOut, window, cx);
11872        });
11873
11874        workspace.update_in(cx, |workspace, _window, cx| {
11875            assert!(
11876                !pane.read(cx).is_zoomed(),
11877                "Pane should unzoom after ZoomOut"
11878            );
11879            assert!(
11880                workspace.zoomed.is_none(),
11881                "Workspace clears zoom tracking after ZoomOut"
11882            );
11883        });
11884
11885        // Zoom Out again is a no-op
11886        pane.update_in(cx, |pane, window, cx| {
11887            pane.zoom_out(&crate::ZoomOut, window, cx);
11888        });
11889
11890        workspace.update_in(cx, |workspace, _window, cx| {
11891            assert!(
11892                !pane.read(cx).is_zoomed(),
11893                "Second ZoomOut keeps pane unzoomed"
11894            );
11895            assert!(
11896                workspace.zoomed.is_none(),
11897                "Workspace remains without zoomed pane"
11898            );
11899        });
11900    }
11901
11902    #[gpui::test]
11903    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
11904        init_test(cx);
11905        let fs = FakeFs::new(cx.executor());
11906
11907        let project = Project::test(fs, [], cx).await;
11908        let (workspace, cx) =
11909            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11910        workspace.update_in(cx, |workspace, window, cx| {
11911            // Open two docks
11912            let left_dock = workspace.dock_at_position(DockPosition::Left);
11913            let right_dock = workspace.dock_at_position(DockPosition::Right);
11914
11915            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11916            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11917
11918            assert!(left_dock.read(cx).is_open());
11919            assert!(right_dock.read(cx).is_open());
11920        });
11921
11922        workspace.update_in(cx, |workspace, window, cx| {
11923            // Toggle all docks - should close both
11924            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11925
11926            let left_dock = workspace.dock_at_position(DockPosition::Left);
11927            let right_dock = workspace.dock_at_position(DockPosition::Right);
11928            assert!(!left_dock.read(cx).is_open());
11929            assert!(!right_dock.read(cx).is_open());
11930        });
11931
11932        workspace.update_in(cx, |workspace, window, cx| {
11933            // Toggle again - should reopen both
11934            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11935
11936            let left_dock = workspace.dock_at_position(DockPosition::Left);
11937            let right_dock = workspace.dock_at_position(DockPosition::Right);
11938            assert!(left_dock.read(cx).is_open());
11939            assert!(right_dock.read(cx).is_open());
11940        });
11941    }
11942
11943    #[gpui::test]
11944    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
11945        init_test(cx);
11946        let fs = FakeFs::new(cx.executor());
11947
11948        let project = Project::test(fs, [], cx).await;
11949        let (workspace, cx) =
11950            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11951        workspace.update_in(cx, |workspace, window, cx| {
11952            // Open two docks
11953            let left_dock = workspace.dock_at_position(DockPosition::Left);
11954            let right_dock = workspace.dock_at_position(DockPosition::Right);
11955
11956            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11957            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11958
11959            assert!(left_dock.read(cx).is_open());
11960            assert!(right_dock.read(cx).is_open());
11961        });
11962
11963        workspace.update_in(cx, |workspace, window, cx| {
11964            // Close them manually
11965            workspace.toggle_dock(DockPosition::Left, window, cx);
11966            workspace.toggle_dock(DockPosition::Right, window, cx);
11967
11968            let left_dock = workspace.dock_at_position(DockPosition::Left);
11969            let right_dock = workspace.dock_at_position(DockPosition::Right);
11970            assert!(!left_dock.read(cx).is_open());
11971            assert!(!right_dock.read(cx).is_open());
11972        });
11973
11974        workspace.update_in(cx, |workspace, window, cx| {
11975            // Toggle all docks - only last closed (right dock) should reopen
11976            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11977
11978            let left_dock = workspace.dock_at_position(DockPosition::Left);
11979            let right_dock = workspace.dock_at_position(DockPosition::Right);
11980            assert!(!left_dock.read(cx).is_open());
11981            assert!(right_dock.read(cx).is_open());
11982        });
11983    }
11984
11985    #[gpui::test]
11986    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
11987        init_test(cx);
11988        let fs = FakeFs::new(cx.executor());
11989        let project = Project::test(fs, [], cx).await;
11990        let (multi_workspace, cx) =
11991            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11992        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11993
11994        // Open two docks (left and right) with one panel each
11995        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
11996            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11997            workspace.add_panel(left_panel.clone(), window, cx);
11998
11999            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12000            workspace.add_panel(right_panel.clone(), window, cx);
12001
12002            workspace.toggle_dock(DockPosition::Left, window, cx);
12003            workspace.toggle_dock(DockPosition::Right, window, cx);
12004
12005            // Verify initial state
12006            assert!(
12007                workspace.left_dock().read(cx).is_open(),
12008                "Left dock should be open"
12009            );
12010            assert_eq!(
12011                workspace
12012                    .left_dock()
12013                    .read(cx)
12014                    .visible_panel()
12015                    .unwrap()
12016                    .panel_id(),
12017                left_panel.panel_id(),
12018                "Left panel should be visible in left dock"
12019            );
12020            assert!(
12021                workspace.right_dock().read(cx).is_open(),
12022                "Right dock should be open"
12023            );
12024            assert_eq!(
12025                workspace
12026                    .right_dock()
12027                    .read(cx)
12028                    .visible_panel()
12029                    .unwrap()
12030                    .panel_id(),
12031                right_panel.panel_id(),
12032                "Right panel should be visible in right dock"
12033            );
12034            assert!(
12035                !workspace.bottom_dock().read(cx).is_open(),
12036                "Bottom dock should be closed"
12037            );
12038
12039            (left_panel, right_panel)
12040        });
12041
12042        // Focus the left panel and move it to the next position (bottom dock)
12043        workspace.update_in(cx, |workspace, window, cx| {
12044            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
12045            assert!(
12046                left_panel.read(cx).focus_handle(cx).is_focused(window),
12047                "Left panel should be focused"
12048            );
12049        });
12050
12051        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12052
12053        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
12054        workspace.update(cx, |workspace, cx| {
12055            assert!(
12056                !workspace.left_dock().read(cx).is_open(),
12057                "Left dock should be closed"
12058            );
12059            assert!(
12060                workspace.bottom_dock().read(cx).is_open(),
12061                "Bottom dock should now be open"
12062            );
12063            assert_eq!(
12064                left_panel.read(cx).position,
12065                DockPosition::Bottom,
12066                "Left panel should now be in the bottom dock"
12067            );
12068            assert_eq!(
12069                workspace
12070                    .bottom_dock()
12071                    .read(cx)
12072                    .visible_panel()
12073                    .unwrap()
12074                    .panel_id(),
12075                left_panel.panel_id(),
12076                "Left panel should be the visible panel in the bottom dock"
12077            );
12078        });
12079
12080        // Toggle all docks off
12081        workspace.update_in(cx, |workspace, window, cx| {
12082            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12083            assert!(
12084                !workspace.left_dock().read(cx).is_open(),
12085                "Left dock should be closed"
12086            );
12087            assert!(
12088                !workspace.right_dock().read(cx).is_open(),
12089                "Right dock should be closed"
12090            );
12091            assert!(
12092                !workspace.bottom_dock().read(cx).is_open(),
12093                "Bottom dock should be closed"
12094            );
12095        });
12096
12097        // Toggle all docks back on and verify positions are restored
12098        workspace.update_in(cx, |workspace, window, cx| {
12099            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12100            assert!(
12101                !workspace.left_dock().read(cx).is_open(),
12102                "Left dock should remain closed"
12103            );
12104            assert!(
12105                workspace.right_dock().read(cx).is_open(),
12106                "Right dock should remain open"
12107            );
12108            assert!(
12109                workspace.bottom_dock().read(cx).is_open(),
12110                "Bottom dock should remain open"
12111            );
12112            assert_eq!(
12113                left_panel.read(cx).position,
12114                DockPosition::Bottom,
12115                "Left panel should remain in the bottom dock"
12116            );
12117            assert_eq!(
12118                right_panel.read(cx).position,
12119                DockPosition::Right,
12120                "Right panel should remain in the right dock"
12121            );
12122            assert_eq!(
12123                workspace
12124                    .bottom_dock()
12125                    .read(cx)
12126                    .visible_panel()
12127                    .unwrap()
12128                    .panel_id(),
12129                left_panel.panel_id(),
12130                "Left panel should be the visible panel in the right dock"
12131            );
12132        });
12133    }
12134
12135    #[gpui::test]
12136    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
12137        init_test(cx);
12138
12139        let fs = FakeFs::new(cx.executor());
12140
12141        let project = Project::test(fs, None, cx).await;
12142        let (workspace, cx) =
12143            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12144
12145        // Let's arrange the panes like this:
12146        //
12147        // +-----------------------+
12148        // |         top           |
12149        // +------+--------+-------+
12150        // | left | center | right |
12151        // +------+--------+-------+
12152        // |        bottom         |
12153        // +-----------------------+
12154
12155        let top_item = cx.new(|cx| {
12156            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12157        });
12158        let bottom_item = cx.new(|cx| {
12159            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12160        });
12161        let left_item = cx.new(|cx| {
12162            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12163        });
12164        let right_item = cx.new(|cx| {
12165            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12166        });
12167        let center_item = cx.new(|cx| {
12168            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12169        });
12170
12171        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12172            let top_pane_id = workspace.active_pane().entity_id();
12173            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12174            workspace.split_pane(
12175                workspace.active_pane().clone(),
12176                SplitDirection::Down,
12177                window,
12178                cx,
12179            );
12180            top_pane_id
12181        });
12182        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12183            let bottom_pane_id = workspace.active_pane().entity_id();
12184            workspace.add_item_to_active_pane(
12185                Box::new(bottom_item.clone()),
12186                None,
12187                false,
12188                window,
12189                cx,
12190            );
12191            workspace.split_pane(
12192                workspace.active_pane().clone(),
12193                SplitDirection::Up,
12194                window,
12195                cx,
12196            );
12197            bottom_pane_id
12198        });
12199        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12200            let left_pane_id = workspace.active_pane().entity_id();
12201            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12202            workspace.split_pane(
12203                workspace.active_pane().clone(),
12204                SplitDirection::Right,
12205                window,
12206                cx,
12207            );
12208            left_pane_id
12209        });
12210        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12211            let right_pane_id = workspace.active_pane().entity_id();
12212            workspace.add_item_to_active_pane(
12213                Box::new(right_item.clone()),
12214                None,
12215                false,
12216                window,
12217                cx,
12218            );
12219            workspace.split_pane(
12220                workspace.active_pane().clone(),
12221                SplitDirection::Left,
12222                window,
12223                cx,
12224            );
12225            right_pane_id
12226        });
12227        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12228            let center_pane_id = workspace.active_pane().entity_id();
12229            workspace.add_item_to_active_pane(
12230                Box::new(center_item.clone()),
12231                None,
12232                false,
12233                window,
12234                cx,
12235            );
12236            center_pane_id
12237        });
12238        cx.executor().run_until_parked();
12239
12240        workspace.update_in(cx, |workspace, window, cx| {
12241            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12242
12243            // Join into next from center pane into right
12244            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12245        });
12246
12247        workspace.update_in(cx, |workspace, window, cx| {
12248            let active_pane = workspace.active_pane();
12249            assert_eq!(right_pane_id, active_pane.entity_id());
12250            assert_eq!(2, active_pane.read(cx).items_len());
12251            let item_ids_in_pane =
12252                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12253            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12254            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12255
12256            // Join into next from right pane into bottom
12257            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12258        });
12259
12260        workspace.update_in(cx, |workspace, window, cx| {
12261            let active_pane = workspace.active_pane();
12262            assert_eq!(bottom_pane_id, active_pane.entity_id());
12263            assert_eq!(3, active_pane.read(cx).items_len());
12264            let item_ids_in_pane =
12265                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12266            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12267            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12268            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12269
12270            // Join into next from bottom pane into left
12271            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12272        });
12273
12274        workspace.update_in(cx, |workspace, window, cx| {
12275            let active_pane = workspace.active_pane();
12276            assert_eq!(left_pane_id, active_pane.entity_id());
12277            assert_eq!(4, active_pane.read(cx).items_len());
12278            let item_ids_in_pane =
12279                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12280            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12281            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12282            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12283            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12284
12285            // Join into next from left pane into top
12286            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12287        });
12288
12289        workspace.update_in(cx, |workspace, window, cx| {
12290            let active_pane = workspace.active_pane();
12291            assert_eq!(top_pane_id, active_pane.entity_id());
12292            assert_eq!(5, active_pane.read(cx).items_len());
12293            let item_ids_in_pane =
12294                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12295            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12296            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12297            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12298            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12299            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12300
12301            // Single pane left: no-op
12302            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12303        });
12304
12305        workspace.update(cx, |workspace, _cx| {
12306            let active_pane = workspace.active_pane();
12307            assert_eq!(top_pane_id, active_pane.entity_id());
12308        });
12309    }
12310
12311    fn add_an_item_to_active_pane(
12312        cx: &mut VisualTestContext,
12313        workspace: &Entity<Workspace>,
12314        item_id: u64,
12315    ) -> Entity<TestItem> {
12316        let item = cx.new(|cx| {
12317            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12318                item_id,
12319                "item{item_id}.txt",
12320                cx,
12321            )])
12322        });
12323        workspace.update_in(cx, |workspace, window, cx| {
12324            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12325        });
12326        item
12327    }
12328
12329    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12330        workspace.update_in(cx, |workspace, window, cx| {
12331            workspace.split_pane(
12332                workspace.active_pane().clone(),
12333                SplitDirection::Right,
12334                window,
12335                cx,
12336            )
12337        })
12338    }
12339
12340    #[gpui::test]
12341    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12342        init_test(cx);
12343        let fs = FakeFs::new(cx.executor());
12344        let project = Project::test(fs, None, cx).await;
12345        let (workspace, cx) =
12346            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12347
12348        add_an_item_to_active_pane(cx, &workspace, 1);
12349        split_pane(cx, &workspace);
12350        add_an_item_to_active_pane(cx, &workspace, 2);
12351        split_pane(cx, &workspace); // empty pane
12352        split_pane(cx, &workspace);
12353        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12354
12355        cx.executor().run_until_parked();
12356
12357        workspace.update(cx, |workspace, cx| {
12358            let num_panes = workspace.panes().len();
12359            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12360            let active_item = workspace
12361                .active_pane()
12362                .read(cx)
12363                .active_item()
12364                .expect("item is in focus");
12365
12366            assert_eq!(num_panes, 4);
12367            assert_eq!(num_items_in_current_pane, 1);
12368            assert_eq!(active_item.item_id(), last_item.item_id());
12369        });
12370
12371        workspace.update_in(cx, |workspace, window, cx| {
12372            workspace.join_all_panes(window, cx);
12373        });
12374
12375        workspace.update(cx, |workspace, cx| {
12376            let num_panes = workspace.panes().len();
12377            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12378            let active_item = workspace
12379                .active_pane()
12380                .read(cx)
12381                .active_item()
12382                .expect("item is in focus");
12383
12384            assert_eq!(num_panes, 1);
12385            assert_eq!(num_items_in_current_pane, 3);
12386            assert_eq!(active_item.item_id(), last_item.item_id());
12387        });
12388    }
12389
12390    #[gpui::test]
12391    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12392        init_test(cx);
12393        let fs = FakeFs::new(cx.executor());
12394
12395        let project = Project::test(fs, [], cx).await;
12396        let (multi_workspace, cx) =
12397            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12398        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12399
12400        workspace.update(cx, |workspace, _cx| {
12401            workspace.bounds.size.width = px(800.);
12402        });
12403
12404        workspace.update_in(cx, |workspace, window, cx| {
12405            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12406            workspace.add_panel(panel, window, cx);
12407            workspace.toggle_dock(DockPosition::Right, window, cx);
12408        });
12409
12410        let (panel, resized_width, ratio_basis_width) =
12411            workspace.update_in(cx, |workspace, window, cx| {
12412                let item = cx.new(|cx| {
12413                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12414                });
12415                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12416
12417                let dock = workspace.right_dock().read(cx);
12418                let workspace_width = workspace.bounds.size.width;
12419                let initial_width = workspace
12420                    .dock_size(&dock, window, cx)
12421                    .expect("flexible dock should have an initial width");
12422
12423                assert_eq!(initial_width, workspace_width / 2.);
12424
12425                workspace.resize_right_dock(px(300.), window, cx);
12426
12427                let dock = workspace.right_dock().read(cx);
12428                let resized_width = workspace
12429                    .dock_size(&dock, window, cx)
12430                    .expect("flexible dock should keep its resized width");
12431
12432                assert_eq!(resized_width, px(300.));
12433
12434                let panel = workspace
12435                    .right_dock()
12436                    .read(cx)
12437                    .visible_panel()
12438                    .expect("flexible dock should have a visible panel")
12439                    .panel_id();
12440
12441                (panel, resized_width, workspace_width)
12442            });
12443
12444        workspace.update_in(cx, |workspace, window, cx| {
12445            workspace.toggle_dock(DockPosition::Right, window, cx);
12446            workspace.toggle_dock(DockPosition::Right, window, cx);
12447
12448            let dock = workspace.right_dock().read(cx);
12449            let reopened_width = workspace
12450                .dock_size(&dock, window, cx)
12451                .expect("flexible dock should restore when reopened");
12452
12453            assert_eq!(reopened_width, resized_width);
12454
12455            let right_dock = workspace.right_dock().read(cx);
12456            let flexible_panel = right_dock
12457                .visible_panel()
12458                .expect("flexible dock should still have a visible panel");
12459            assert_eq!(flexible_panel.panel_id(), panel);
12460            assert_eq!(
12461                right_dock
12462                    .stored_panel_size_state(flexible_panel.as_ref())
12463                    .and_then(|size_state| size_state.flex),
12464                Some(
12465                    resized_width.to_f64() as f32
12466                        / (workspace.bounds.size.width - resized_width).to_f64() as f32
12467                )
12468            );
12469        });
12470
12471        workspace.update_in(cx, |workspace, window, cx| {
12472            workspace.split_pane(
12473                workspace.active_pane().clone(),
12474                SplitDirection::Right,
12475                window,
12476                cx,
12477            );
12478
12479            let dock = workspace.right_dock().read(cx);
12480            let split_width = workspace
12481                .dock_size(&dock, window, cx)
12482                .expect("flexible dock should keep its user-resized proportion");
12483
12484            assert_eq!(split_width, px(300.));
12485
12486            workspace.bounds.size.width = px(1600.);
12487
12488            let dock = workspace.right_dock().read(cx);
12489            let resized_window_width = workspace
12490                .dock_size(&dock, window, cx)
12491                .expect("flexible dock should preserve proportional size on window resize");
12492
12493            assert_eq!(
12494                resized_window_width,
12495                workspace.bounds.size.width
12496                    * (resized_width.to_f64() as f32 / ratio_basis_width.to_f64() as f32)
12497            );
12498        });
12499    }
12500
12501    #[gpui::test]
12502    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12503        init_test(cx);
12504        let fs = FakeFs::new(cx.executor());
12505
12506        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12507        {
12508            let project = Project::test(fs.clone(), [], cx).await;
12509            let (multi_workspace, cx) =
12510                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12511            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12512
12513            workspace.update(cx, |workspace, _cx| {
12514                workspace.set_random_database_id();
12515                workspace.bounds.size.width = px(800.);
12516            });
12517
12518            let panel = workspace.update_in(cx, |workspace, window, cx| {
12519                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12520                workspace.add_panel(panel.clone(), window, cx);
12521                workspace.toggle_dock(DockPosition::Left, window, cx);
12522                panel
12523            });
12524
12525            workspace.update_in(cx, |workspace, window, cx| {
12526                workspace.resize_left_dock(px(350.), window, cx);
12527            });
12528
12529            cx.run_until_parked();
12530
12531            let persisted = workspace.read_with(cx, |workspace, cx| {
12532                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12533            });
12534            assert_eq!(
12535                persisted.and_then(|s| s.size),
12536                Some(px(350.)),
12537                "fixed-width panel size should be persisted to KVP"
12538            );
12539
12540            // Remove the panel and re-add a fresh instance with the same key.
12541            // The new instance should have its size state restored from KVP.
12542            workspace.update_in(cx, |workspace, window, cx| {
12543                workspace.remove_panel(&panel, window, cx);
12544            });
12545
12546            workspace.update_in(cx, |workspace, window, cx| {
12547                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12548                workspace.add_panel(new_panel, window, cx);
12549
12550                let left_dock = workspace.left_dock().read(cx);
12551                let size_state = left_dock
12552                    .panel::<TestPanel>()
12553                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12554                assert_eq!(
12555                    size_state.and_then(|s| s.size),
12556                    Some(px(350.)),
12557                    "re-added fixed-width panel should restore persisted size from KVP"
12558                );
12559            });
12560        }
12561
12562        // Flexible panel: both pixel size and ratio are persisted and restored.
12563        {
12564            let project = Project::test(fs.clone(), [], cx).await;
12565            let (multi_workspace, cx) =
12566                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12567            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12568
12569            workspace.update(cx, |workspace, _cx| {
12570                workspace.set_random_database_id();
12571                workspace.bounds.size.width = px(800.);
12572            });
12573
12574            let panel = workspace.update_in(cx, |workspace, window, cx| {
12575                let item = cx.new(|cx| {
12576                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12577                });
12578                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12579
12580                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12581                workspace.add_panel(panel.clone(), window, cx);
12582                workspace.toggle_dock(DockPosition::Right, window, cx);
12583                panel
12584            });
12585
12586            workspace.update_in(cx, |workspace, window, cx| {
12587                workspace.resize_right_dock(px(300.), window, cx);
12588            });
12589
12590            cx.run_until_parked();
12591
12592            let persisted = workspace
12593                .read_with(cx, |workspace, cx| {
12594                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12595                })
12596                .expect("flexible panel state should be persisted to KVP");
12597            assert_eq!(
12598                persisted.size, None,
12599                "flexible panel should not persist a redundant pixel size"
12600            );
12601            let original_ratio = persisted.flex.expect("panel's flex should be persisted");
12602
12603            // Remove the panel and re-add: both size and ratio should be restored.
12604            workspace.update_in(cx, |workspace, window, cx| {
12605                workspace.remove_panel(&panel, window, cx);
12606            });
12607
12608            workspace.update_in(cx, |workspace, window, cx| {
12609                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12610                workspace.add_panel(new_panel, window, cx);
12611
12612                let right_dock = workspace.right_dock().read(cx);
12613                let size_state = right_dock
12614                    .panel::<TestPanel>()
12615                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12616                    .expect("re-added flexible panel should have restored size state from KVP");
12617                assert_eq!(
12618                    size_state.size, None,
12619                    "re-added flexible panel should not have a persisted pixel size"
12620                );
12621                assert_eq!(
12622                    size_state.flex,
12623                    Some(original_ratio),
12624                    "re-added flexible panel should restore persisted flex"
12625                );
12626            });
12627        }
12628    }
12629
12630    #[gpui::test]
12631    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12632        init_test(cx);
12633        let fs = FakeFs::new(cx.executor());
12634
12635        let project = Project::test(fs, [], cx).await;
12636        let (multi_workspace, cx) =
12637            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12638        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12639
12640        workspace.update(cx, |workspace, _cx| {
12641            workspace.bounds.size.width = px(900.);
12642        });
12643
12644        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12645        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12646        // and the center pane each take half the workspace width.
12647        workspace.update_in(cx, |workspace, window, cx| {
12648            let item = cx.new(|cx| {
12649                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12650            });
12651            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12652
12653            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12654            workspace.add_panel(panel, window, cx);
12655            workspace.toggle_dock(DockPosition::Left, window, cx);
12656
12657            let left_dock = workspace.left_dock().read(cx);
12658            let left_width = workspace
12659                .dock_size(&left_dock, window, cx)
12660                .expect("left dock should have an active panel");
12661
12662            assert_eq!(
12663                left_width,
12664                workspace.bounds.size.width / 2.,
12665                "flexible left panel should split evenly with the center pane"
12666            );
12667        });
12668
12669        // Step 2: Split the center pane vertically (top/bottom). Vertical splits do not
12670        // change horizontal width fractions, so the flexible panel stays at the same
12671        // width as each half of the split.
12672        workspace.update_in(cx, |workspace, window, cx| {
12673            workspace.split_pane(
12674                workspace.active_pane().clone(),
12675                SplitDirection::Down,
12676                window,
12677                cx,
12678            );
12679
12680            let left_dock = workspace.left_dock().read(cx);
12681            let left_width = workspace
12682                .dock_size(&left_dock, window, cx)
12683                .expect("left dock should still have an active panel after vertical split");
12684
12685            assert_eq!(
12686                left_width,
12687                workspace.bounds.size.width / 2.,
12688                "flexible left panel width should match each vertically-split pane"
12689            );
12690        });
12691
12692        // Step 3: Open a fixed-width panel in the right dock. The right dock's default
12693        // size reduces the available width, so the flexible left panel and the center
12694        // panes all shrink proportionally to accommodate it.
12695        workspace.update_in(cx, |workspace, window, cx| {
12696            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
12697            workspace.add_panel(panel, window, cx);
12698            workspace.toggle_dock(DockPosition::Right, window, cx);
12699
12700            let right_dock = workspace.right_dock().read(cx);
12701            let right_width = workspace
12702                .dock_size(&right_dock, window, cx)
12703                .expect("right dock should have an active panel");
12704
12705            let left_dock = workspace.left_dock().read(cx);
12706            let left_width = workspace
12707                .dock_size(&left_dock, window, cx)
12708                .expect("left dock should still have an active panel");
12709
12710            let available_width = workspace.bounds.size.width - right_width;
12711            assert_eq!(
12712                left_width,
12713                available_width / 2.,
12714                "flexible left panel should shrink proportionally as the right dock takes space"
12715            );
12716        });
12717
12718        // Step 4: Toggle the right dock's panel to flexible. Now both docks use
12719        // flex sizing and the workspace width is divided among left-flex, center
12720        // (implicit flex 1.0), and right-flex.
12721        workspace.update_in(cx, |workspace, window, cx| {
12722            let right_dock = workspace.right_dock().clone();
12723            let right_panel = right_dock
12724                .read(cx)
12725                .visible_panel()
12726                .expect("right dock should have a visible panel")
12727                .clone();
12728            workspace.toggle_dock_panel_flexible_size(
12729                &right_dock,
12730                right_panel.as_ref(),
12731                window,
12732                cx,
12733            );
12734
12735            let right_dock = right_dock.read(cx);
12736            let right_panel = right_dock
12737                .visible_panel()
12738                .expect("right dock should still have a visible panel");
12739            assert!(
12740                right_panel.has_flexible_size(window, cx),
12741                "right panel should now be flexible"
12742            );
12743
12744            let right_size_state = right_dock
12745                .stored_panel_size_state(right_panel.as_ref())
12746                .expect("right panel should have a stored size state after toggling");
12747            let right_flex = right_size_state
12748                .flex
12749                .expect("right panel should have a flex value after toggling");
12750
12751            let left_dock = workspace.left_dock().read(cx);
12752            let left_width = workspace
12753                .dock_size(&left_dock, window, cx)
12754                .expect("left dock should still have an active panel");
12755            let right_width = workspace
12756                .dock_size(&right_dock, window, cx)
12757                .expect("right dock should still have an active panel");
12758
12759            let left_flex = workspace
12760                .default_dock_flex(DockPosition::Left)
12761                .expect("left dock should have a default flex");
12762
12763            let total_flex = left_flex + 1.0 + right_flex;
12764            let expected_left = left_flex / total_flex * workspace.bounds.size.width;
12765            let expected_right = right_flex / total_flex * workspace.bounds.size.width;
12766            assert_eq!(
12767                left_width, expected_left,
12768                "flexible left panel should share workspace width via flex ratios"
12769            );
12770            assert_eq!(
12771                right_width, expected_right,
12772                "flexible right panel should share workspace width via flex ratios"
12773            );
12774        });
12775    }
12776
12777    struct TestModal(FocusHandle);
12778
12779    impl TestModal {
12780        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
12781            Self(cx.focus_handle())
12782        }
12783    }
12784
12785    impl EventEmitter<DismissEvent> for TestModal {}
12786
12787    impl Focusable for TestModal {
12788        fn focus_handle(&self, _cx: &App) -> FocusHandle {
12789            self.0.clone()
12790        }
12791    }
12792
12793    impl ModalView for TestModal {}
12794
12795    impl Render for TestModal {
12796        fn render(
12797            &mut self,
12798            _window: &mut Window,
12799            _cx: &mut Context<TestModal>,
12800        ) -> impl IntoElement {
12801            div().track_focus(&self.0)
12802        }
12803    }
12804
12805    #[gpui::test]
12806    async fn test_panels(cx: &mut gpui::TestAppContext) {
12807        init_test(cx);
12808        let fs = FakeFs::new(cx.executor());
12809
12810        let project = Project::test(fs, [], cx).await;
12811        let (multi_workspace, cx) =
12812            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12813        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12814
12815        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
12816            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12817            workspace.add_panel(panel_1.clone(), window, cx);
12818            workspace.toggle_dock(DockPosition::Left, window, cx);
12819            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12820            workspace.add_panel(panel_2.clone(), window, cx);
12821            workspace.toggle_dock(DockPosition::Right, window, cx);
12822
12823            let left_dock = workspace.left_dock();
12824            assert_eq!(
12825                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12826                panel_1.panel_id()
12827            );
12828            assert_eq!(
12829                workspace.dock_size(&left_dock.read(cx), window, cx),
12830                Some(px(300.))
12831            );
12832
12833            workspace.resize_left_dock(px(1337.), window, cx);
12834            assert_eq!(
12835                workspace
12836                    .right_dock()
12837                    .read(cx)
12838                    .visible_panel()
12839                    .unwrap()
12840                    .panel_id(),
12841                panel_2.panel_id(),
12842            );
12843
12844            (panel_1, panel_2)
12845        });
12846
12847        // Move panel_1 to the right
12848        panel_1.update_in(cx, |panel_1, window, cx| {
12849            panel_1.set_position(DockPosition::Right, window, cx)
12850        });
12851
12852        workspace.update_in(cx, |workspace, window, cx| {
12853            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
12854            // Since it was the only panel on the left, the left dock should now be closed.
12855            assert!(!workspace.left_dock().read(cx).is_open());
12856            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
12857            let right_dock = workspace.right_dock();
12858            assert_eq!(
12859                right_dock.read(cx).visible_panel().unwrap().panel_id(),
12860                panel_1.panel_id()
12861            );
12862            assert_eq!(
12863                right_dock
12864                    .read(cx)
12865                    .active_panel_size()
12866                    .unwrap()
12867                    .size
12868                    .unwrap(),
12869                px(1337.)
12870            );
12871
12872            // Now we move panel_2 to the left
12873            panel_2.set_position(DockPosition::Left, window, cx);
12874        });
12875
12876        workspace.update(cx, |workspace, cx| {
12877            // Since panel_2 was not visible on the right, we don't open the left dock.
12878            assert!(!workspace.left_dock().read(cx).is_open());
12879            // And the right dock is unaffected in its displaying of panel_1
12880            assert!(workspace.right_dock().read(cx).is_open());
12881            assert_eq!(
12882                workspace
12883                    .right_dock()
12884                    .read(cx)
12885                    .visible_panel()
12886                    .unwrap()
12887                    .panel_id(),
12888                panel_1.panel_id(),
12889            );
12890        });
12891
12892        // Move panel_1 back to the left
12893        panel_1.update_in(cx, |panel_1, window, cx| {
12894            panel_1.set_position(DockPosition::Left, window, cx)
12895        });
12896
12897        workspace.update_in(cx, |workspace, window, cx| {
12898            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
12899            let left_dock = workspace.left_dock();
12900            assert!(left_dock.read(cx).is_open());
12901            assert_eq!(
12902                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12903                panel_1.panel_id()
12904            );
12905            assert_eq!(
12906                workspace.dock_size(&left_dock.read(cx), window, cx),
12907                Some(px(1337.))
12908            );
12909            // And the right dock should be closed as it no longer has any panels.
12910            assert!(!workspace.right_dock().read(cx).is_open());
12911
12912            // Now we move panel_1 to the bottom
12913            panel_1.set_position(DockPosition::Bottom, window, cx);
12914        });
12915
12916        workspace.update_in(cx, |workspace, window, cx| {
12917            // Since panel_1 was visible on the left, we close the left dock.
12918            assert!(!workspace.left_dock().read(cx).is_open());
12919            // The bottom dock is sized based on the panel's default size,
12920            // since the panel orientation changed from vertical to horizontal.
12921            let bottom_dock = workspace.bottom_dock();
12922            assert_eq!(
12923                workspace.dock_size(&bottom_dock.read(cx), window, cx),
12924                Some(px(300.))
12925            );
12926            // Close bottom dock and move panel_1 back to the left.
12927            bottom_dock.update(cx, |bottom_dock, cx| {
12928                bottom_dock.set_open(false, window, cx)
12929            });
12930            panel_1.set_position(DockPosition::Left, window, cx);
12931        });
12932
12933        // Emit activated event on panel 1
12934        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
12935
12936        // Now the left dock is open and panel_1 is active and focused.
12937        workspace.update_in(cx, |workspace, window, cx| {
12938            let left_dock = workspace.left_dock();
12939            assert!(left_dock.read(cx).is_open());
12940            assert_eq!(
12941                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12942                panel_1.panel_id(),
12943            );
12944            assert!(panel_1.focus_handle(cx).is_focused(window));
12945        });
12946
12947        // Emit closed event on panel 2, which is not active
12948        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12949
12950        // Wo don't close the left dock, because panel_2 wasn't the active panel
12951        workspace.update(cx, |workspace, cx| {
12952            let left_dock = workspace.left_dock();
12953            assert!(left_dock.read(cx).is_open());
12954            assert_eq!(
12955                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12956                panel_1.panel_id(),
12957            );
12958        });
12959
12960        // Emitting a ZoomIn event shows the panel as zoomed.
12961        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
12962        workspace.read_with(cx, |workspace, _| {
12963            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12964            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
12965        });
12966
12967        // Move panel to another dock while it is zoomed
12968        panel_1.update_in(cx, |panel, window, cx| {
12969            panel.set_position(DockPosition::Right, window, cx)
12970        });
12971        workspace.read_with(cx, |workspace, _| {
12972            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12973
12974            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12975        });
12976
12977        // This is a helper for getting a:
12978        // - valid focus on an element,
12979        // - that isn't a part of the panes and panels system of the Workspace,
12980        // - and doesn't trigger the 'on_focus_lost' API.
12981        let focus_other_view = {
12982            let workspace = workspace.clone();
12983            move |cx: &mut VisualTestContext| {
12984                workspace.update_in(cx, |workspace, window, cx| {
12985                    if workspace.active_modal::<TestModal>(cx).is_some() {
12986                        workspace.toggle_modal(window, cx, TestModal::new);
12987                        workspace.toggle_modal(window, cx, TestModal::new);
12988                    } else {
12989                        workspace.toggle_modal(window, cx, TestModal::new);
12990                    }
12991                })
12992            }
12993        };
12994
12995        // If focus is transferred to another view that's not a panel or another pane, we still show
12996        // the panel as zoomed.
12997        focus_other_view(cx);
12998        workspace.read_with(cx, |workspace, _| {
12999            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13000            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13001        });
13002
13003        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
13004        workspace.update_in(cx, |_workspace, window, cx| {
13005            cx.focus_self(window);
13006        });
13007        workspace.read_with(cx, |workspace, _| {
13008            assert_eq!(workspace.zoomed, None);
13009            assert_eq!(workspace.zoomed_position, None);
13010        });
13011
13012        // If focus is transferred again to another view that's not a panel or a pane, we won't
13013        // show the panel as zoomed because it wasn't zoomed before.
13014        focus_other_view(cx);
13015        workspace.read_with(cx, |workspace, _| {
13016            assert_eq!(workspace.zoomed, None);
13017            assert_eq!(workspace.zoomed_position, None);
13018        });
13019
13020        // When the panel is activated, it is zoomed again.
13021        cx.dispatch_action(ToggleRightDock);
13022        workspace.read_with(cx, |workspace, _| {
13023            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13024            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13025        });
13026
13027        // Emitting a ZoomOut event unzooms the panel.
13028        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
13029        workspace.read_with(cx, |workspace, _| {
13030            assert_eq!(workspace.zoomed, None);
13031            assert_eq!(workspace.zoomed_position, None);
13032        });
13033
13034        // Emit closed event on panel 1, which is active
13035        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13036
13037        // Now the left dock is closed, because panel_1 was the active panel
13038        workspace.update(cx, |workspace, cx| {
13039            let right_dock = workspace.right_dock();
13040            assert!(!right_dock.read(cx).is_open());
13041        });
13042    }
13043
13044    #[gpui::test]
13045    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
13046        init_test(cx);
13047
13048        let fs = FakeFs::new(cx.background_executor.clone());
13049        let project = Project::test(fs, [], cx).await;
13050        let (workspace, cx) =
13051            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13052        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13053
13054        let dirty_regular_buffer = cx.new(|cx| {
13055            TestItem::new(cx)
13056                .with_dirty(true)
13057                .with_label("1.txt")
13058                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13059        });
13060        let dirty_regular_buffer_2 = cx.new(|cx| {
13061            TestItem::new(cx)
13062                .with_dirty(true)
13063                .with_label("2.txt")
13064                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13065        });
13066        let dirty_multi_buffer_with_both = cx.new(|cx| {
13067            TestItem::new(cx)
13068                .with_dirty(true)
13069                .with_buffer_kind(ItemBufferKind::Multibuffer)
13070                .with_label("Fake Project Search")
13071                .with_project_items(&[
13072                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13073                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13074                ])
13075        });
13076        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13077        workspace.update_in(cx, |workspace, window, cx| {
13078            workspace.add_item(
13079                pane.clone(),
13080                Box::new(dirty_regular_buffer.clone()),
13081                None,
13082                false,
13083                false,
13084                window,
13085                cx,
13086            );
13087            workspace.add_item(
13088                pane.clone(),
13089                Box::new(dirty_regular_buffer_2.clone()),
13090                None,
13091                false,
13092                false,
13093                window,
13094                cx,
13095            );
13096            workspace.add_item(
13097                pane.clone(),
13098                Box::new(dirty_multi_buffer_with_both.clone()),
13099                None,
13100                false,
13101                false,
13102                window,
13103                cx,
13104            );
13105        });
13106
13107        pane.update_in(cx, |pane, window, cx| {
13108            pane.activate_item(2, true, true, window, cx);
13109            assert_eq!(
13110                pane.active_item().unwrap().item_id(),
13111                multi_buffer_with_both_files_id,
13112                "Should select the multi buffer in the pane"
13113            );
13114        });
13115        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13116            pane.close_other_items(
13117                &CloseOtherItems {
13118                    save_intent: Some(SaveIntent::Save),
13119                    close_pinned: true,
13120                },
13121                None,
13122                window,
13123                cx,
13124            )
13125        });
13126        cx.background_executor.run_until_parked();
13127        assert!(!cx.has_pending_prompt());
13128        close_all_but_multi_buffer_task
13129            .await
13130            .expect("Closing all buffers but the multi buffer failed");
13131        pane.update(cx, |pane, cx| {
13132            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
13133            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
13134            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
13135            assert_eq!(pane.items_len(), 1);
13136            assert_eq!(
13137                pane.active_item().unwrap().item_id(),
13138                multi_buffer_with_both_files_id,
13139                "Should have only the multi buffer left in the pane"
13140            );
13141            assert!(
13142                dirty_multi_buffer_with_both.read(cx).is_dirty,
13143                "The multi buffer containing the unsaved buffer should still be dirty"
13144            );
13145        });
13146
13147        dirty_regular_buffer.update(cx, |buffer, cx| {
13148            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
13149        });
13150
13151        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13152            pane.close_active_item(
13153                &CloseActiveItem {
13154                    save_intent: Some(SaveIntent::Close),
13155                    close_pinned: false,
13156                },
13157                window,
13158                cx,
13159            )
13160        });
13161        cx.background_executor.run_until_parked();
13162        assert!(
13163            cx.has_pending_prompt(),
13164            "Dirty multi buffer should prompt a save dialog"
13165        );
13166        cx.simulate_prompt_answer("Save");
13167        cx.background_executor.run_until_parked();
13168        close_multi_buffer_task
13169            .await
13170            .expect("Closing the multi buffer failed");
13171        pane.update(cx, |pane, cx| {
13172            assert_eq!(
13173                dirty_multi_buffer_with_both.read(cx).save_count,
13174                1,
13175                "Multi buffer item should get be saved"
13176            );
13177            // Test impl does not save inner items, so we do not assert them
13178            assert_eq!(
13179                pane.items_len(),
13180                0,
13181                "No more items should be left in the pane"
13182            );
13183            assert!(pane.active_item().is_none());
13184        });
13185    }
13186
13187    #[gpui::test]
13188    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
13189        cx: &mut TestAppContext,
13190    ) {
13191        init_test(cx);
13192
13193        let fs = FakeFs::new(cx.background_executor.clone());
13194        let project = Project::test(fs, [], cx).await;
13195        let (workspace, cx) =
13196            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13197        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13198
13199        let dirty_regular_buffer = cx.new(|cx| {
13200            TestItem::new(cx)
13201                .with_dirty(true)
13202                .with_label("1.txt")
13203                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13204        });
13205        let dirty_regular_buffer_2 = cx.new(|cx| {
13206            TestItem::new(cx)
13207                .with_dirty(true)
13208                .with_label("2.txt")
13209                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13210        });
13211        let clear_regular_buffer = cx.new(|cx| {
13212            TestItem::new(cx)
13213                .with_label("3.txt")
13214                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13215        });
13216
13217        let dirty_multi_buffer_with_both = cx.new(|cx| {
13218            TestItem::new(cx)
13219                .with_dirty(true)
13220                .with_buffer_kind(ItemBufferKind::Multibuffer)
13221                .with_label("Fake Project Search")
13222                .with_project_items(&[
13223                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13224                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13225                    clear_regular_buffer.read(cx).project_items[0].clone(),
13226                ])
13227        });
13228        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13229        workspace.update_in(cx, |workspace, window, cx| {
13230            workspace.add_item(
13231                pane.clone(),
13232                Box::new(dirty_regular_buffer.clone()),
13233                None,
13234                false,
13235                false,
13236                window,
13237                cx,
13238            );
13239            workspace.add_item(
13240                pane.clone(),
13241                Box::new(dirty_multi_buffer_with_both.clone()),
13242                None,
13243                false,
13244                false,
13245                window,
13246                cx,
13247            );
13248        });
13249
13250        pane.update_in(cx, |pane, window, cx| {
13251            pane.activate_item(1, true, true, window, cx);
13252            assert_eq!(
13253                pane.active_item().unwrap().item_id(),
13254                multi_buffer_with_both_files_id,
13255                "Should select the multi buffer in the pane"
13256            );
13257        });
13258        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13259            pane.close_active_item(
13260                &CloseActiveItem {
13261                    save_intent: None,
13262                    close_pinned: false,
13263                },
13264                window,
13265                cx,
13266            )
13267        });
13268        cx.background_executor.run_until_parked();
13269        assert!(
13270            cx.has_pending_prompt(),
13271            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13272        );
13273    }
13274
13275    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13276    /// closed when they are deleted from disk.
13277    #[gpui::test]
13278    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13279        init_test(cx);
13280
13281        // Enable the close_on_disk_deletion setting
13282        cx.update_global(|store: &mut SettingsStore, cx| {
13283            store.update_user_settings(cx, |settings| {
13284                settings.workspace.close_on_file_delete = Some(true);
13285            });
13286        });
13287
13288        let fs = FakeFs::new(cx.background_executor.clone());
13289        let project = Project::test(fs, [], cx).await;
13290        let (workspace, cx) =
13291            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13292        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13293
13294        // Create a test item that simulates a file
13295        let item = cx.new(|cx| {
13296            TestItem::new(cx)
13297                .with_label("test.txt")
13298                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13299        });
13300
13301        // Add item to workspace
13302        workspace.update_in(cx, |workspace, window, cx| {
13303            workspace.add_item(
13304                pane.clone(),
13305                Box::new(item.clone()),
13306                None,
13307                false,
13308                false,
13309                window,
13310                cx,
13311            );
13312        });
13313
13314        // Verify the item is in the pane
13315        pane.read_with(cx, |pane, _| {
13316            assert_eq!(pane.items().count(), 1);
13317        });
13318
13319        // Simulate file deletion by setting the item's deleted state
13320        item.update(cx, |item, _| {
13321            item.set_has_deleted_file(true);
13322        });
13323
13324        // Emit UpdateTab event to trigger the close behavior
13325        cx.run_until_parked();
13326        item.update(cx, |_, cx| {
13327            cx.emit(ItemEvent::UpdateTab);
13328        });
13329
13330        // Allow the close operation to complete
13331        cx.run_until_parked();
13332
13333        // Verify the item was automatically closed
13334        pane.read_with(cx, |pane, _| {
13335            assert_eq!(
13336                pane.items().count(),
13337                0,
13338                "Item should be automatically closed when file is deleted"
13339            );
13340        });
13341    }
13342
13343    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13344    /// open with a strikethrough when they are deleted from disk.
13345    #[gpui::test]
13346    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13347        init_test(cx);
13348
13349        // Ensure close_on_disk_deletion is disabled (default)
13350        cx.update_global(|store: &mut SettingsStore, cx| {
13351            store.update_user_settings(cx, |settings| {
13352                settings.workspace.close_on_file_delete = Some(false);
13353            });
13354        });
13355
13356        let fs = FakeFs::new(cx.background_executor.clone());
13357        let project = Project::test(fs, [], cx).await;
13358        let (workspace, cx) =
13359            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13360        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13361
13362        // Create a test item that simulates a file
13363        let item = cx.new(|cx| {
13364            TestItem::new(cx)
13365                .with_label("test.txt")
13366                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13367        });
13368
13369        // Add item to workspace
13370        workspace.update_in(cx, |workspace, window, cx| {
13371            workspace.add_item(
13372                pane.clone(),
13373                Box::new(item.clone()),
13374                None,
13375                false,
13376                false,
13377                window,
13378                cx,
13379            );
13380        });
13381
13382        // Verify the item is in the pane
13383        pane.read_with(cx, |pane, _| {
13384            assert_eq!(pane.items().count(), 1);
13385        });
13386
13387        // Simulate file deletion
13388        item.update(cx, |item, _| {
13389            item.set_has_deleted_file(true);
13390        });
13391
13392        // Emit UpdateTab event
13393        cx.run_until_parked();
13394        item.update(cx, |_, cx| {
13395            cx.emit(ItemEvent::UpdateTab);
13396        });
13397
13398        // Allow any potential close operation to complete
13399        cx.run_until_parked();
13400
13401        // Verify the item remains open (with strikethrough)
13402        pane.read_with(cx, |pane, _| {
13403            assert_eq!(
13404                pane.items().count(),
13405                1,
13406                "Item should remain open when close_on_disk_deletion is disabled"
13407            );
13408        });
13409
13410        // Verify the item shows as deleted
13411        item.read_with(cx, |item, _| {
13412            assert!(
13413                item.has_deleted_file,
13414                "Item should be marked as having deleted file"
13415            );
13416        });
13417    }
13418
13419    /// Tests that dirty files are not automatically closed when deleted from disk,
13420    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13421    /// unsaved changes without being prompted.
13422    #[gpui::test]
13423    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13424        init_test(cx);
13425
13426        // Enable the close_on_file_delete setting
13427        cx.update_global(|store: &mut SettingsStore, cx| {
13428            store.update_user_settings(cx, |settings| {
13429                settings.workspace.close_on_file_delete = Some(true);
13430            });
13431        });
13432
13433        let fs = FakeFs::new(cx.background_executor.clone());
13434        let project = Project::test(fs, [], cx).await;
13435        let (workspace, cx) =
13436            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13437        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13438
13439        // Create a dirty test item
13440        let item = cx.new(|cx| {
13441            TestItem::new(cx)
13442                .with_dirty(true)
13443                .with_label("test.txt")
13444                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13445        });
13446
13447        // Add item to workspace
13448        workspace.update_in(cx, |workspace, window, cx| {
13449            workspace.add_item(
13450                pane.clone(),
13451                Box::new(item.clone()),
13452                None,
13453                false,
13454                false,
13455                window,
13456                cx,
13457            );
13458        });
13459
13460        // Simulate file deletion
13461        item.update(cx, |item, _| {
13462            item.set_has_deleted_file(true);
13463        });
13464
13465        // Emit UpdateTab event to trigger the close behavior
13466        cx.run_until_parked();
13467        item.update(cx, |_, cx| {
13468            cx.emit(ItemEvent::UpdateTab);
13469        });
13470
13471        // Allow any potential close operation to complete
13472        cx.run_until_parked();
13473
13474        // Verify the item remains open (dirty files are not auto-closed)
13475        pane.read_with(cx, |pane, _| {
13476            assert_eq!(
13477                pane.items().count(),
13478                1,
13479                "Dirty items should not be automatically closed even when file is deleted"
13480            );
13481        });
13482
13483        // Verify the item is marked as deleted and still dirty
13484        item.read_with(cx, |item, _| {
13485            assert!(
13486                item.has_deleted_file,
13487                "Item should be marked as having deleted file"
13488            );
13489            assert!(item.is_dirty, "Item should still be dirty");
13490        });
13491    }
13492
13493    /// Tests that navigation history is cleaned up when files are auto-closed
13494    /// due to deletion from disk.
13495    #[gpui::test]
13496    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13497        init_test(cx);
13498
13499        // Enable the close_on_file_delete setting
13500        cx.update_global(|store: &mut SettingsStore, cx| {
13501            store.update_user_settings(cx, |settings| {
13502                settings.workspace.close_on_file_delete = Some(true);
13503            });
13504        });
13505
13506        let fs = FakeFs::new(cx.background_executor.clone());
13507        let project = Project::test(fs, [], cx).await;
13508        let (workspace, cx) =
13509            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13510        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13511
13512        // Create test items
13513        let item1 = cx.new(|cx| {
13514            TestItem::new(cx)
13515                .with_label("test1.txt")
13516                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13517        });
13518        let item1_id = item1.item_id();
13519
13520        let item2 = cx.new(|cx| {
13521            TestItem::new(cx)
13522                .with_label("test2.txt")
13523                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13524        });
13525
13526        // Add items to workspace
13527        workspace.update_in(cx, |workspace, window, cx| {
13528            workspace.add_item(
13529                pane.clone(),
13530                Box::new(item1.clone()),
13531                None,
13532                false,
13533                false,
13534                window,
13535                cx,
13536            );
13537            workspace.add_item(
13538                pane.clone(),
13539                Box::new(item2.clone()),
13540                None,
13541                false,
13542                false,
13543                window,
13544                cx,
13545            );
13546        });
13547
13548        // Activate item1 to ensure it gets navigation entries
13549        pane.update_in(cx, |pane, window, cx| {
13550            pane.activate_item(0, true, true, window, cx);
13551        });
13552
13553        // Switch to item2 and back to create navigation history
13554        pane.update_in(cx, |pane, window, cx| {
13555            pane.activate_item(1, true, true, window, cx);
13556        });
13557        cx.run_until_parked();
13558
13559        pane.update_in(cx, |pane, window, cx| {
13560            pane.activate_item(0, true, true, window, cx);
13561        });
13562        cx.run_until_parked();
13563
13564        // Simulate file deletion for item1
13565        item1.update(cx, |item, _| {
13566            item.set_has_deleted_file(true);
13567        });
13568
13569        // Emit UpdateTab event to trigger the close behavior
13570        item1.update(cx, |_, cx| {
13571            cx.emit(ItemEvent::UpdateTab);
13572        });
13573        cx.run_until_parked();
13574
13575        // Verify item1 was closed
13576        pane.read_with(cx, |pane, _| {
13577            assert_eq!(
13578                pane.items().count(),
13579                1,
13580                "Should have 1 item remaining after auto-close"
13581            );
13582        });
13583
13584        // Check navigation history after close
13585        let has_item = pane.read_with(cx, |pane, cx| {
13586            let mut has_item = false;
13587            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13588                if entry.item.id() == item1_id {
13589                    has_item = true;
13590                }
13591            });
13592            has_item
13593        });
13594
13595        assert!(
13596            !has_item,
13597            "Navigation history should not contain closed item entries"
13598        );
13599    }
13600
13601    #[gpui::test]
13602    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13603        cx: &mut TestAppContext,
13604    ) {
13605        init_test(cx);
13606
13607        let fs = FakeFs::new(cx.background_executor.clone());
13608        let project = Project::test(fs, [], cx).await;
13609        let (workspace, cx) =
13610            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13611        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13612
13613        let dirty_regular_buffer = cx.new(|cx| {
13614            TestItem::new(cx)
13615                .with_dirty(true)
13616                .with_label("1.txt")
13617                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13618        });
13619        let dirty_regular_buffer_2 = cx.new(|cx| {
13620            TestItem::new(cx)
13621                .with_dirty(true)
13622                .with_label("2.txt")
13623                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13624        });
13625        let clear_regular_buffer = cx.new(|cx| {
13626            TestItem::new(cx)
13627                .with_label("3.txt")
13628                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13629        });
13630
13631        let dirty_multi_buffer = cx.new(|cx| {
13632            TestItem::new(cx)
13633                .with_dirty(true)
13634                .with_buffer_kind(ItemBufferKind::Multibuffer)
13635                .with_label("Fake Project Search")
13636                .with_project_items(&[
13637                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13638                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13639                    clear_regular_buffer.read(cx).project_items[0].clone(),
13640                ])
13641        });
13642        workspace.update_in(cx, |workspace, window, cx| {
13643            workspace.add_item(
13644                pane.clone(),
13645                Box::new(dirty_regular_buffer.clone()),
13646                None,
13647                false,
13648                false,
13649                window,
13650                cx,
13651            );
13652            workspace.add_item(
13653                pane.clone(),
13654                Box::new(dirty_regular_buffer_2.clone()),
13655                None,
13656                false,
13657                false,
13658                window,
13659                cx,
13660            );
13661            workspace.add_item(
13662                pane.clone(),
13663                Box::new(dirty_multi_buffer.clone()),
13664                None,
13665                false,
13666                false,
13667                window,
13668                cx,
13669            );
13670        });
13671
13672        pane.update_in(cx, |pane, window, cx| {
13673            pane.activate_item(2, true, true, window, cx);
13674            assert_eq!(
13675                pane.active_item().unwrap().item_id(),
13676                dirty_multi_buffer.item_id(),
13677                "Should select the multi buffer in the pane"
13678            );
13679        });
13680        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13681            pane.close_active_item(
13682                &CloseActiveItem {
13683                    save_intent: None,
13684                    close_pinned: false,
13685                },
13686                window,
13687                cx,
13688            )
13689        });
13690        cx.background_executor.run_until_parked();
13691        assert!(
13692            !cx.has_pending_prompt(),
13693            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
13694        );
13695        close_multi_buffer_task
13696            .await
13697            .expect("Closing multi buffer failed");
13698        pane.update(cx, |pane, cx| {
13699            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
13700            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
13701            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
13702            assert_eq!(
13703                pane.items()
13704                    .map(|item| item.item_id())
13705                    .sorted()
13706                    .collect::<Vec<_>>(),
13707                vec![
13708                    dirty_regular_buffer.item_id(),
13709                    dirty_regular_buffer_2.item_id(),
13710                ],
13711                "Should have no multi buffer left in the pane"
13712            );
13713            assert!(dirty_regular_buffer.read(cx).is_dirty);
13714            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
13715        });
13716    }
13717
13718    #[gpui::test]
13719    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
13720        init_test(cx);
13721        let fs = FakeFs::new(cx.executor());
13722        let project = Project::test(fs, [], cx).await;
13723        let (multi_workspace, cx) =
13724            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13725        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13726
13727        // Add a new panel to the right dock, opening the dock and setting the
13728        // focus to the new panel.
13729        let panel = workspace.update_in(cx, |workspace, window, cx| {
13730            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13731            workspace.add_panel(panel.clone(), window, cx);
13732
13733            workspace
13734                .right_dock()
13735                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13736
13737            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13738
13739            panel
13740        });
13741
13742        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13743        // panel to the next valid position which, in this case, is the left
13744        // dock.
13745        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13746        workspace.update(cx, |workspace, cx| {
13747            assert!(workspace.left_dock().read(cx).is_open());
13748            assert_eq!(panel.read(cx).position, DockPosition::Left);
13749        });
13750
13751        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13752        // panel to the next valid position which, in this case, is the bottom
13753        // dock.
13754        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13755        workspace.update(cx, |workspace, cx| {
13756            assert!(workspace.bottom_dock().read(cx).is_open());
13757            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
13758        });
13759
13760        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
13761        // around moving the panel to its initial position, the right dock.
13762        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13763        workspace.update(cx, |workspace, cx| {
13764            assert!(workspace.right_dock().read(cx).is_open());
13765            assert_eq!(panel.read(cx).position, DockPosition::Right);
13766        });
13767
13768        // Remove focus from the panel, ensuring that, if the panel is not
13769        // focused, the `MoveFocusedPanelToNextPosition` action does not update
13770        // the panel's position, so the panel is still in the right dock.
13771        workspace.update_in(cx, |workspace, window, cx| {
13772            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13773        });
13774
13775        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13776        workspace.update(cx, |workspace, cx| {
13777            assert!(workspace.right_dock().read(cx).is_open());
13778            assert_eq!(panel.read(cx).position, DockPosition::Right);
13779        });
13780    }
13781
13782    #[gpui::test]
13783    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
13784        init_test(cx);
13785
13786        let fs = FakeFs::new(cx.executor());
13787        let project = Project::test(fs, [], cx).await;
13788        let (workspace, cx) =
13789            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13790
13791        let item_1 = cx.new(|cx| {
13792            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13793        });
13794        workspace.update_in(cx, |workspace, window, cx| {
13795            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13796            workspace.move_item_to_pane_in_direction(
13797                &MoveItemToPaneInDirection {
13798                    direction: SplitDirection::Right,
13799                    focus: true,
13800                    clone: false,
13801                },
13802                window,
13803                cx,
13804            );
13805            workspace.move_item_to_pane_at_index(
13806                &MoveItemToPane {
13807                    destination: 3,
13808                    focus: true,
13809                    clone: false,
13810                },
13811                window,
13812                cx,
13813            );
13814
13815            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
13816            assert_eq!(
13817                pane_items_paths(&workspace.active_pane, cx),
13818                vec!["first.txt".to_string()],
13819                "Single item was not moved anywhere"
13820            );
13821        });
13822
13823        let item_2 = cx.new(|cx| {
13824            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
13825        });
13826        workspace.update_in(cx, |workspace, window, cx| {
13827            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
13828            assert_eq!(
13829                pane_items_paths(&workspace.panes[0], cx),
13830                vec!["first.txt".to_string(), "second.txt".to_string()],
13831            );
13832            workspace.move_item_to_pane_in_direction(
13833                &MoveItemToPaneInDirection {
13834                    direction: SplitDirection::Right,
13835                    focus: true,
13836                    clone: false,
13837                },
13838                window,
13839                cx,
13840            );
13841
13842            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
13843            assert_eq!(
13844                pane_items_paths(&workspace.panes[0], cx),
13845                vec!["first.txt".to_string()],
13846                "After moving, one item should be left in the original pane"
13847            );
13848            assert_eq!(
13849                pane_items_paths(&workspace.panes[1], cx),
13850                vec!["second.txt".to_string()],
13851                "New item should have been moved to the new pane"
13852            );
13853        });
13854
13855        let item_3 = cx.new(|cx| {
13856            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
13857        });
13858        workspace.update_in(cx, |workspace, window, cx| {
13859            let original_pane = workspace.panes[0].clone();
13860            workspace.set_active_pane(&original_pane, window, cx);
13861            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
13862            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
13863            assert_eq!(
13864                pane_items_paths(&workspace.active_pane, cx),
13865                vec!["first.txt".to_string(), "third.txt".to_string()],
13866                "New pane should be ready to move one item out"
13867            );
13868
13869            workspace.move_item_to_pane_at_index(
13870                &MoveItemToPane {
13871                    destination: 3,
13872                    focus: true,
13873                    clone: false,
13874                },
13875                window,
13876                cx,
13877            );
13878            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
13879            assert_eq!(
13880                pane_items_paths(&workspace.active_pane, cx),
13881                vec!["first.txt".to_string()],
13882                "After moving, one item should be left in the original pane"
13883            );
13884            assert_eq!(
13885                pane_items_paths(&workspace.panes[1], cx),
13886                vec!["second.txt".to_string()],
13887                "Previously created pane should be unchanged"
13888            );
13889            assert_eq!(
13890                pane_items_paths(&workspace.panes[2], cx),
13891                vec!["third.txt".to_string()],
13892                "New item should have been moved to the new pane"
13893            );
13894        });
13895    }
13896
13897    #[gpui::test]
13898    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
13899        init_test(cx);
13900
13901        let fs = FakeFs::new(cx.executor());
13902        let project = Project::test(fs, [], cx).await;
13903        let (workspace, cx) =
13904            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13905
13906        let item_1 = cx.new(|cx| {
13907            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13908        });
13909        workspace.update_in(cx, |workspace, window, cx| {
13910            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13911            workspace.move_item_to_pane_in_direction(
13912                &MoveItemToPaneInDirection {
13913                    direction: SplitDirection::Right,
13914                    focus: true,
13915                    clone: true,
13916                },
13917                window,
13918                cx,
13919            );
13920        });
13921        cx.run_until_parked();
13922        workspace.update_in(cx, |workspace, window, cx| {
13923            workspace.move_item_to_pane_at_index(
13924                &MoveItemToPane {
13925                    destination: 3,
13926                    focus: true,
13927                    clone: true,
13928                },
13929                window,
13930                cx,
13931            );
13932        });
13933        cx.run_until_parked();
13934
13935        workspace.update(cx, |workspace, cx| {
13936            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
13937            for pane in workspace.panes() {
13938                assert_eq!(
13939                    pane_items_paths(pane, cx),
13940                    vec!["first.txt".to_string()],
13941                    "Single item exists in all panes"
13942                );
13943            }
13944        });
13945
13946        // verify that the active pane has been updated after waiting for the
13947        // pane focus event to fire and resolve
13948        workspace.read_with(cx, |workspace, _app| {
13949            assert_eq!(
13950                workspace.active_pane(),
13951                &workspace.panes[2],
13952                "The third pane should be the active one: {:?}",
13953                workspace.panes
13954            );
13955        })
13956    }
13957
13958    #[gpui::test]
13959    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
13960        init_test(cx);
13961
13962        let fs = FakeFs::new(cx.executor());
13963        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
13964
13965        let project = Project::test(fs, ["root".as_ref()], cx).await;
13966        let (workspace, cx) =
13967            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13968
13969        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13970        // Add item to pane A with project path
13971        let item_a = cx.new(|cx| {
13972            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13973        });
13974        workspace.update_in(cx, |workspace, window, cx| {
13975            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
13976        });
13977
13978        // Split to create pane B
13979        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
13980            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
13981        });
13982
13983        // Add item with SAME project path to pane B, and pin it
13984        let item_b = cx.new(|cx| {
13985            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13986        });
13987        pane_b.update_in(cx, |pane, window, cx| {
13988            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13989            pane.set_pinned_count(1);
13990        });
13991
13992        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
13993        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
13994
13995        // close_pinned: false should only close the unpinned copy
13996        workspace.update_in(cx, |workspace, window, cx| {
13997            workspace.close_item_in_all_panes(
13998                &CloseItemInAllPanes {
13999                    save_intent: Some(SaveIntent::Close),
14000                    close_pinned: false,
14001                },
14002                window,
14003                cx,
14004            )
14005        });
14006        cx.executor().run_until_parked();
14007
14008        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
14009        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14010        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
14011        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
14012
14013        // Split again, seeing as closing the previous item also closed its
14014        // pane, so only pane remains, which does not allow us to properly test
14015        // that both items close when `close_pinned: true`.
14016        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
14017            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
14018        });
14019
14020        // Add an item with the same project path to pane C so that
14021        // close_item_in_all_panes can determine what to close across all panes
14022        // (it reads the active item from the active pane, and split_pane
14023        // creates an empty pane).
14024        let item_c = cx.new(|cx| {
14025            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14026        });
14027        pane_c.update_in(cx, |pane, window, cx| {
14028            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
14029        });
14030
14031        // close_pinned: true should close the pinned copy too
14032        workspace.update_in(cx, |workspace, window, cx| {
14033            let panes_count = workspace.panes().len();
14034            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
14035
14036            workspace.close_item_in_all_panes(
14037                &CloseItemInAllPanes {
14038                    save_intent: Some(SaveIntent::Close),
14039                    close_pinned: true,
14040                },
14041                window,
14042                cx,
14043            )
14044        });
14045        cx.executor().run_until_parked();
14046
14047        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14048        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
14049        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
14050        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
14051    }
14052
14053    mod register_project_item_tests {
14054
14055        use super::*;
14056
14057        // View
14058        struct TestPngItemView {
14059            focus_handle: FocusHandle,
14060        }
14061        // Model
14062        struct TestPngItem {}
14063
14064        impl project::ProjectItem for TestPngItem {
14065            fn try_open(
14066                _project: &Entity<Project>,
14067                path: &ProjectPath,
14068                cx: &mut App,
14069            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14070                if path.path.extension().unwrap() == "png" {
14071                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
14072                } else {
14073                    None
14074                }
14075            }
14076
14077            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14078                None
14079            }
14080
14081            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14082                None
14083            }
14084
14085            fn is_dirty(&self) -> bool {
14086                false
14087            }
14088        }
14089
14090        impl Item for TestPngItemView {
14091            type Event = ();
14092            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14093                "".into()
14094            }
14095        }
14096        impl EventEmitter<()> for TestPngItemView {}
14097        impl Focusable for TestPngItemView {
14098            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14099                self.focus_handle.clone()
14100            }
14101        }
14102
14103        impl Render for TestPngItemView {
14104            fn render(
14105                &mut self,
14106                _window: &mut Window,
14107                _cx: &mut Context<Self>,
14108            ) -> impl IntoElement {
14109                Empty
14110            }
14111        }
14112
14113        impl ProjectItem for TestPngItemView {
14114            type Item = TestPngItem;
14115
14116            fn for_project_item(
14117                _project: Entity<Project>,
14118                _pane: Option<&Pane>,
14119                _item: Entity<Self::Item>,
14120                _: &mut Window,
14121                cx: &mut Context<Self>,
14122            ) -> Self
14123            where
14124                Self: Sized,
14125            {
14126                Self {
14127                    focus_handle: cx.focus_handle(),
14128                }
14129            }
14130        }
14131
14132        // View
14133        struct TestIpynbItemView {
14134            focus_handle: FocusHandle,
14135        }
14136        // Model
14137        struct TestIpynbItem {}
14138
14139        impl project::ProjectItem for TestIpynbItem {
14140            fn try_open(
14141                _project: &Entity<Project>,
14142                path: &ProjectPath,
14143                cx: &mut App,
14144            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14145                if path.path.extension().unwrap() == "ipynb" {
14146                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
14147                } else {
14148                    None
14149                }
14150            }
14151
14152            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14153                None
14154            }
14155
14156            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14157                None
14158            }
14159
14160            fn is_dirty(&self) -> bool {
14161                false
14162            }
14163        }
14164
14165        impl Item for TestIpynbItemView {
14166            type Event = ();
14167            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14168                "".into()
14169            }
14170        }
14171        impl EventEmitter<()> for TestIpynbItemView {}
14172        impl Focusable for TestIpynbItemView {
14173            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14174                self.focus_handle.clone()
14175            }
14176        }
14177
14178        impl Render for TestIpynbItemView {
14179            fn render(
14180                &mut self,
14181                _window: &mut Window,
14182                _cx: &mut Context<Self>,
14183            ) -> impl IntoElement {
14184                Empty
14185            }
14186        }
14187
14188        impl ProjectItem for TestIpynbItemView {
14189            type Item = TestIpynbItem;
14190
14191            fn for_project_item(
14192                _project: Entity<Project>,
14193                _pane: Option<&Pane>,
14194                _item: Entity<Self::Item>,
14195                _: &mut Window,
14196                cx: &mut Context<Self>,
14197            ) -> Self
14198            where
14199                Self: Sized,
14200            {
14201                Self {
14202                    focus_handle: cx.focus_handle(),
14203                }
14204            }
14205        }
14206
14207        struct TestAlternatePngItemView {
14208            focus_handle: FocusHandle,
14209        }
14210
14211        impl Item for TestAlternatePngItemView {
14212            type Event = ();
14213            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14214                "".into()
14215            }
14216        }
14217
14218        impl EventEmitter<()> for TestAlternatePngItemView {}
14219        impl Focusable for TestAlternatePngItemView {
14220            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14221                self.focus_handle.clone()
14222            }
14223        }
14224
14225        impl Render for TestAlternatePngItemView {
14226            fn render(
14227                &mut self,
14228                _window: &mut Window,
14229                _cx: &mut Context<Self>,
14230            ) -> impl IntoElement {
14231                Empty
14232            }
14233        }
14234
14235        impl ProjectItem for TestAlternatePngItemView {
14236            type Item = TestPngItem;
14237
14238            fn for_project_item(
14239                _project: Entity<Project>,
14240                _pane: Option<&Pane>,
14241                _item: Entity<Self::Item>,
14242                _: &mut Window,
14243                cx: &mut Context<Self>,
14244            ) -> Self
14245            where
14246                Self: Sized,
14247            {
14248                Self {
14249                    focus_handle: cx.focus_handle(),
14250                }
14251            }
14252        }
14253
14254        #[gpui::test]
14255        async fn test_register_project_item(cx: &mut TestAppContext) {
14256            init_test(cx);
14257
14258            cx.update(|cx| {
14259                register_project_item::<TestPngItemView>(cx);
14260                register_project_item::<TestIpynbItemView>(cx);
14261            });
14262
14263            let fs = FakeFs::new(cx.executor());
14264            fs.insert_tree(
14265                "/root1",
14266                json!({
14267                    "one.png": "BINARYDATAHERE",
14268                    "two.ipynb": "{ totally a notebook }",
14269                    "three.txt": "editing text, sure why not?"
14270                }),
14271            )
14272            .await;
14273
14274            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14275            let (workspace, cx) =
14276                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14277
14278            let worktree_id = project.update(cx, |project, cx| {
14279                project.worktrees(cx).next().unwrap().read(cx).id()
14280            });
14281
14282            let handle = workspace
14283                .update_in(cx, |workspace, window, cx| {
14284                    let project_path = (worktree_id, rel_path("one.png"));
14285                    workspace.open_path(project_path, None, true, window, cx)
14286                })
14287                .await
14288                .unwrap();
14289
14290            // Now we can check if the handle we got back errored or not
14291            assert_eq!(
14292                handle.to_any_view().entity_type(),
14293                TypeId::of::<TestPngItemView>()
14294            );
14295
14296            let handle = workspace
14297                .update_in(cx, |workspace, window, cx| {
14298                    let project_path = (worktree_id, rel_path("two.ipynb"));
14299                    workspace.open_path(project_path, None, true, window, cx)
14300                })
14301                .await
14302                .unwrap();
14303
14304            assert_eq!(
14305                handle.to_any_view().entity_type(),
14306                TypeId::of::<TestIpynbItemView>()
14307            );
14308
14309            let handle = workspace
14310                .update_in(cx, |workspace, window, cx| {
14311                    let project_path = (worktree_id, rel_path("three.txt"));
14312                    workspace.open_path(project_path, None, true, window, cx)
14313                })
14314                .await;
14315            assert!(handle.is_err());
14316        }
14317
14318        #[gpui::test]
14319        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14320            init_test(cx);
14321
14322            cx.update(|cx| {
14323                register_project_item::<TestPngItemView>(cx);
14324                register_project_item::<TestAlternatePngItemView>(cx);
14325            });
14326
14327            let fs = FakeFs::new(cx.executor());
14328            fs.insert_tree(
14329                "/root1",
14330                json!({
14331                    "one.png": "BINARYDATAHERE",
14332                    "two.ipynb": "{ totally a notebook }",
14333                    "three.txt": "editing text, sure why not?"
14334                }),
14335            )
14336            .await;
14337            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14338            let (workspace, cx) =
14339                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14340            let worktree_id = project.update(cx, |project, cx| {
14341                project.worktrees(cx).next().unwrap().read(cx).id()
14342            });
14343
14344            let handle = workspace
14345                .update_in(cx, |workspace, window, cx| {
14346                    let project_path = (worktree_id, rel_path("one.png"));
14347                    workspace.open_path(project_path, None, true, window, cx)
14348                })
14349                .await
14350                .unwrap();
14351
14352            // This _must_ be the second item registered
14353            assert_eq!(
14354                handle.to_any_view().entity_type(),
14355                TypeId::of::<TestAlternatePngItemView>()
14356            );
14357
14358            let handle = workspace
14359                .update_in(cx, |workspace, window, cx| {
14360                    let project_path = (worktree_id, rel_path("three.txt"));
14361                    workspace.open_path(project_path, None, true, window, cx)
14362                })
14363                .await;
14364            assert!(handle.is_err());
14365        }
14366    }
14367
14368    #[gpui::test]
14369    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14370        init_test(cx);
14371
14372        let fs = FakeFs::new(cx.executor());
14373        let project = Project::test(fs, [], cx).await;
14374        let (workspace, _cx) =
14375            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14376
14377        // Test with status bar shown (default)
14378        workspace.read_with(cx, |workspace, cx| {
14379            let visible = workspace.status_bar_visible(cx);
14380            assert!(visible, "Status bar should be visible by default");
14381        });
14382
14383        // Test with status bar hidden
14384        cx.update_global(|store: &mut SettingsStore, cx| {
14385            store.update_user_settings(cx, |settings| {
14386                settings.status_bar.get_or_insert_default().show = Some(false);
14387            });
14388        });
14389
14390        workspace.read_with(cx, |workspace, cx| {
14391            let visible = workspace.status_bar_visible(cx);
14392            assert!(!visible, "Status bar should be hidden when show is false");
14393        });
14394
14395        // Test with status bar shown explicitly
14396        cx.update_global(|store: &mut SettingsStore, cx| {
14397            store.update_user_settings(cx, |settings| {
14398                settings.status_bar.get_or_insert_default().show = Some(true);
14399            });
14400        });
14401
14402        workspace.read_with(cx, |workspace, cx| {
14403            let visible = workspace.status_bar_visible(cx);
14404            assert!(visible, "Status bar should be visible when show is true");
14405        });
14406    }
14407
14408    #[gpui::test]
14409    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14410        init_test(cx);
14411
14412        let fs = FakeFs::new(cx.executor());
14413        let project = Project::test(fs, [], cx).await;
14414        let (multi_workspace, cx) =
14415            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14416        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14417        let panel = workspace.update_in(cx, |workspace, window, cx| {
14418            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14419            workspace.add_panel(panel.clone(), window, cx);
14420
14421            workspace
14422                .right_dock()
14423                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14424
14425            panel
14426        });
14427
14428        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14429        let item_a = cx.new(TestItem::new);
14430        let item_b = cx.new(TestItem::new);
14431        let item_a_id = item_a.entity_id();
14432        let item_b_id = item_b.entity_id();
14433
14434        pane.update_in(cx, |pane, window, cx| {
14435            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14436            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14437        });
14438
14439        pane.read_with(cx, |pane, _| {
14440            assert_eq!(pane.items_len(), 2);
14441            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14442        });
14443
14444        workspace.update_in(cx, |workspace, window, cx| {
14445            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14446        });
14447
14448        workspace.update_in(cx, |_, window, cx| {
14449            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14450        });
14451
14452        // Assert that the `pane::CloseActiveItem` action is handled at the
14453        // workspace level when one of the dock panels is focused and, in that
14454        // case, the center pane's active item is closed but the focus is not
14455        // moved.
14456        cx.dispatch_action(pane::CloseActiveItem::default());
14457        cx.run_until_parked();
14458
14459        pane.read_with(cx, |pane, _| {
14460            assert_eq!(pane.items_len(), 1);
14461            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14462        });
14463
14464        workspace.update_in(cx, |workspace, window, cx| {
14465            assert!(workspace.right_dock().read(cx).is_open());
14466            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14467        });
14468    }
14469
14470    #[gpui::test]
14471    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14472        init_test(cx);
14473        let fs = FakeFs::new(cx.executor());
14474
14475        let project_a = Project::test(fs.clone(), [], cx).await;
14476        let project_b = Project::test(fs, [], cx).await;
14477
14478        let multi_workspace_handle =
14479            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14480        cx.run_until_parked();
14481
14482        let workspace_a = multi_workspace_handle
14483            .read_with(cx, |mw, _| mw.workspace().clone())
14484            .unwrap();
14485
14486        let _workspace_b = multi_workspace_handle
14487            .update(cx, |mw, window, cx| {
14488                mw.test_add_workspace(project_b, window, cx)
14489            })
14490            .unwrap();
14491
14492        // Switch to workspace A
14493        multi_workspace_handle
14494            .update(cx, |mw, window, cx| {
14495                let workspace = mw.workspaces()[0].clone();
14496                mw.activate(workspace, window, cx);
14497            })
14498            .unwrap();
14499
14500        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14501
14502        // Add a panel to workspace A's right dock and open the dock
14503        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14504            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14505            workspace.add_panel(panel.clone(), window, cx);
14506            workspace
14507                .right_dock()
14508                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14509            panel
14510        });
14511
14512        // Focus the panel through the workspace (matching existing test pattern)
14513        workspace_a.update_in(cx, |workspace, window, cx| {
14514            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14515        });
14516
14517        // Zoom the panel
14518        panel.update_in(cx, |panel, window, cx| {
14519            panel.set_zoomed(true, window, cx);
14520        });
14521
14522        // Verify the panel is zoomed and the dock is open
14523        workspace_a.update_in(cx, |workspace, window, cx| {
14524            assert!(
14525                workspace.right_dock().read(cx).is_open(),
14526                "dock should be open before switch"
14527            );
14528            assert!(
14529                panel.is_zoomed(window, cx),
14530                "panel should be zoomed before switch"
14531            );
14532            assert!(
14533                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14534                "panel should be focused before switch"
14535            );
14536        });
14537
14538        // Switch to workspace B
14539        multi_workspace_handle
14540            .update(cx, |mw, window, cx| {
14541                let workspace = mw.workspaces()[1].clone();
14542                mw.activate(workspace, window, cx);
14543            })
14544            .unwrap();
14545        cx.run_until_parked();
14546
14547        // Switch back to workspace A
14548        multi_workspace_handle
14549            .update(cx, |mw, window, cx| {
14550                let workspace = mw.workspaces()[0].clone();
14551                mw.activate(workspace, window, cx);
14552            })
14553            .unwrap();
14554        cx.run_until_parked();
14555
14556        // Verify the panel is still zoomed and the dock is still open
14557        workspace_a.update_in(cx, |workspace, window, cx| {
14558            assert!(
14559                workspace.right_dock().read(cx).is_open(),
14560                "dock should still be open after switching back"
14561            );
14562            assert!(
14563                panel.is_zoomed(window, cx),
14564                "panel should still be zoomed after switching back"
14565            );
14566        });
14567    }
14568
14569    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14570        pane.read(cx)
14571            .items()
14572            .flat_map(|item| {
14573                item.project_paths(cx)
14574                    .into_iter()
14575                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14576            })
14577            .collect()
14578    }
14579
14580    pub fn init_test(cx: &mut TestAppContext) {
14581        cx.update(|cx| {
14582            let settings_store = SettingsStore::test(cx);
14583            cx.set_global(settings_store);
14584            cx.set_global(db::AppDatabase::test_new());
14585            theme_settings::init(theme::LoadThemes::JustBase, cx);
14586        });
14587    }
14588
14589    #[gpui::test]
14590    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14591        use settings::{ThemeName, ThemeSelection};
14592        use theme::SystemAppearance;
14593        use zed_actions::theme::ToggleMode;
14594
14595        init_test(cx);
14596
14597        let fs = FakeFs::new(cx.executor());
14598        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14599
14600        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14601            .await;
14602
14603        // Build a test project and workspace view so the test can invoke
14604        // the workspace action handler the same way the UI would.
14605        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14606        let (workspace, cx) =
14607            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14608
14609        // Seed the settings file with a plain static light theme so the
14610        // first toggle always starts from a known persisted state.
14611        workspace.update_in(cx, |_workspace, _window, cx| {
14612            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14613            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14614                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14615            });
14616        });
14617        cx.executor().advance_clock(Duration::from_millis(200));
14618        cx.run_until_parked();
14619
14620        // Confirm the initial persisted settings contain the static theme
14621        // we just wrote before any toggling happens.
14622        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14623        assert!(settings_text.contains(r#""theme": "One Light""#));
14624
14625        // Toggle once. This should migrate the persisted theme settings
14626        // into light/dark slots and enable system mode.
14627        workspace.update_in(cx, |workspace, window, cx| {
14628            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14629        });
14630        cx.executor().advance_clock(Duration::from_millis(200));
14631        cx.run_until_parked();
14632
14633        // 1. Static -> Dynamic
14634        // this assertion checks theme changed from static to dynamic.
14635        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14636        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14637        assert_eq!(
14638            parsed["theme"],
14639            serde_json::json!({
14640                "mode": "system",
14641                "light": "One Light",
14642                "dark": "One Dark"
14643            })
14644        );
14645
14646        // 2. Toggle again, suppose it will change the mode to light
14647        workspace.update_in(cx, |workspace, window, cx| {
14648            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14649        });
14650        cx.executor().advance_clock(Duration::from_millis(200));
14651        cx.run_until_parked();
14652
14653        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14654        assert!(settings_text.contains(r#""mode": "light""#));
14655    }
14656
14657    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14658        let item = TestProjectItem::new(id, path, cx);
14659        item.update(cx, |item, _| {
14660            item.is_dirty = true;
14661        });
14662        item
14663    }
14664
14665    #[gpui::test]
14666    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
14667        cx: &mut gpui::TestAppContext,
14668    ) {
14669        init_test(cx);
14670        let fs = FakeFs::new(cx.executor());
14671
14672        let project = Project::test(fs, [], cx).await;
14673        let (workspace, cx) =
14674            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14675
14676        let panel = workspace.update_in(cx, |workspace, window, cx| {
14677            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14678            workspace.add_panel(panel.clone(), window, cx);
14679            workspace
14680                .right_dock()
14681                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14682            panel
14683        });
14684
14685        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14686        pane.update_in(cx, |pane, window, cx| {
14687            let item = cx.new(TestItem::new);
14688            pane.add_item(Box::new(item), true, true, None, window, cx);
14689        });
14690
14691        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
14692        // mirrors the real-world flow and avoids side effects from directly
14693        // focusing the panel while the center pane is active.
14694        workspace.update_in(cx, |workspace, window, cx| {
14695            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14696        });
14697
14698        panel.update_in(cx, |panel, window, cx| {
14699            panel.set_zoomed(true, window, cx);
14700        });
14701
14702        workspace.update_in(cx, |workspace, window, cx| {
14703            assert!(workspace.right_dock().read(cx).is_open());
14704            assert!(panel.is_zoomed(window, cx));
14705            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14706        });
14707
14708        // Simulate a spurious pane::Event::Focus on the center pane while the
14709        // panel still has focus. This mirrors what happens during macOS window
14710        // activation: the center pane fires a focus event even though actual
14711        // focus remains on the dock panel.
14712        pane.update_in(cx, |_, _, cx| {
14713            cx.emit(pane::Event::Focus);
14714        });
14715
14716        // The dock must remain open because the panel had focus at the time the
14717        // event was processed. Before the fix, dock_to_preserve was None for
14718        // panels that don't implement pane(), causing the dock to close.
14719        workspace.update_in(cx, |workspace, window, cx| {
14720            assert!(
14721                workspace.right_dock().read(cx).is_open(),
14722                "Dock should stay open when its zoomed panel (without pane()) still has focus"
14723            );
14724            assert!(panel.is_zoomed(window, cx));
14725        });
14726    }
14727
14728    #[gpui::test]
14729    async fn test_panels_stay_open_after_position_change_and_settings_update(
14730        cx: &mut gpui::TestAppContext,
14731    ) {
14732        init_test(cx);
14733        let fs = FakeFs::new(cx.executor());
14734        let project = Project::test(fs, [], cx).await;
14735        let (workspace, cx) =
14736            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14737
14738        // Add two panels to the left dock and open it.
14739        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
14740            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
14741            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
14742            workspace.add_panel(panel_a.clone(), window, cx);
14743            workspace.add_panel(panel_b.clone(), window, cx);
14744            workspace.left_dock().update(cx, |dock, cx| {
14745                dock.set_open(true, window, cx);
14746                dock.activate_panel(0, window, cx);
14747            });
14748            (panel_a, panel_b)
14749        });
14750
14751        workspace.update_in(cx, |workspace, _, cx| {
14752            assert!(workspace.left_dock().read(cx).is_open());
14753        });
14754
14755        // Simulate a feature flag changing default dock positions: both panels
14756        // move from Left to Right.
14757        workspace.update_in(cx, |_workspace, _window, cx| {
14758            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
14759            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
14760            cx.update_global::<SettingsStore, _>(|_, _| {});
14761        });
14762
14763        // Both panels should now be in the right dock.
14764        workspace.update_in(cx, |workspace, _, cx| {
14765            let right_dock = workspace.right_dock().read(cx);
14766            assert_eq!(right_dock.panels_len(), 2);
14767        });
14768
14769        // Open the right dock and activate panel_b (simulating the user
14770        // opening the panel after it moved).
14771        workspace.update_in(cx, |workspace, window, cx| {
14772            workspace.right_dock().update(cx, |dock, cx| {
14773                dock.set_open(true, window, cx);
14774                dock.activate_panel(1, window, cx);
14775            });
14776        });
14777
14778        // Now trigger another SettingsStore change
14779        workspace.update_in(cx, |_workspace, _window, cx| {
14780            cx.update_global::<SettingsStore, _>(|_, _| {});
14781        });
14782
14783        workspace.update_in(cx, |workspace, _, cx| {
14784            assert!(
14785                workspace.right_dock().read(cx).is_open(),
14786                "Right dock should still be open after a settings change"
14787            );
14788            assert_eq!(
14789                workspace.right_dock().read(cx).panels_len(),
14790                2,
14791                "Both panels should still be in the right dock"
14792            );
14793        });
14794    }
14795}