workspace.rs

    1pub mod active_file_name;
    2pub mod dock;
    3pub mod history_manager;
    4pub mod invalid_item_view;
    5pub mod item;
    6mod modal_layer;
    7mod multi_workspace;
    8#[cfg(test)]
    9mod multi_workspace_tests;
   10pub mod notifications;
   11pub mod pane;
   12pub mod pane_group;
   13pub mod path_list {
   14    pub use util::path_list::{PathList, SerializedPathList};
   15}
   16mod persistence;
   17pub mod searchable;
   18mod security_modal;
   19pub mod shared_screen;
   20use db::smol::future::yield_now;
   21pub use shared_screen::SharedScreen;
   22pub mod focus_follows_mouse;
   23mod status_bar;
   24pub mod tasks;
   25mod theme_preview;
   26mod toast_layer;
   27mod toolbar;
   28pub mod welcome;
   29mod workspace_settings;
   30
   31pub use crate::notifications::NotificationFrame;
   32pub use dock::Panel;
   33pub use multi_workspace::{
   34    CloseWorkspaceSidebar, DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace,
   35    MultiWorkspaceEvent, NextWorkspace, PreviousWorkspace, Sidebar, SidebarEvent, SidebarHandle,
   36    SidebarRenderState, SidebarSide, ToggleWorkspaceSidebar, sidebar_side_context_menu,
   37};
   38pub use path_list::{PathList, SerializedPathList};
   39pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   40
   41use anyhow::{Context as _, Result, anyhow};
   42use client::{
   43    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   44    proto::{self, ErrorCode, PanelId, PeerId},
   45};
   46use collections::{HashMap, HashSet, hash_map};
   47use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   48use fs::Fs;
   49use futures::{
   50    Future, FutureExt, StreamExt,
   51    channel::{
   52        mpsc::{self, UnboundedReceiver, UnboundedSender},
   53        oneshot,
   54    },
   55    future::{Shared, try_join_all},
   56};
   57use gpui::{
   58    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Axis, Bounds,
   59    Context, CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   60    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   61    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   62    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   63    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   64};
   65pub use history_manager::*;
   66pub use item::{
   67    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   68    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   69};
   70use itertools::Itertools;
   71use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   72pub use modal_layer::*;
   73use node_runtime::NodeRuntime;
   74use notifications::{
   75    DetachAndPromptErr, Notifications, dismiss_app_notification,
   76    simple_message_notification::MessageNotification,
   77};
   78pub use pane::*;
   79pub use pane_group::{
   80    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   81    SplitDirection,
   82};
   83use persistence::{SerializedWindowBounds, model::SerializedWorkspace};
   84pub use persistence::{
   85    WorkspaceDb, delete_unloaded_items,
   86    model::{
   87        DockStructure, ItemId, MultiWorkspaceState, SerializedMultiWorkspace,
   88        SerializedWorkspaceLocation, SessionWorkspace,
   89    },
   90    read_serialized_multi_workspaces, resolve_worktree_workspaces,
   91};
   92use postage::stream::Stream;
   93use project::{
   94    DirectoryLister, Project, ProjectEntryId, ProjectGroupKey, ProjectPath, ResolvedPath, Worktree,
   95    WorktreeId, WorktreeSettings,
   96    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   97    project_settings::ProjectSettings,
   98    toolchain_store::ToolchainStoreEvent,
   99    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
  100};
  101use remote::{
  102    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
  103    remote_client::ConnectionIdentifier,
  104};
  105use schemars::JsonSchema;
  106use serde::Deserialize;
  107use session::AppSession;
  108use settings::{
  109    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  110};
  111
  112use sqlez::{
  113    bindable::{Bind, Column, StaticColumnCount},
  114    statement::Statement,
  115};
  116use status_bar::StatusBar;
  117pub use status_bar::StatusItemView;
  118use std::{
  119    any::TypeId,
  120    borrow::Cow,
  121    cell::RefCell,
  122    cmp,
  123    collections::VecDeque,
  124    env,
  125    hash::Hash,
  126    path::{Path, PathBuf},
  127    process::ExitStatus,
  128    rc::Rc,
  129    sync::{
  130        Arc, LazyLock,
  131        atomic::{AtomicBool, AtomicUsize},
  132    },
  133    time::Duration,
  134};
  135use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  136use theme::{ActiveTheme, SystemAppearance};
  137use theme_settings::ThemeSettings;
  138pub use toolbar::{
  139    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  140};
  141pub use ui;
  142use ui::{Window, prelude::*};
  143use util::{
  144    ResultExt, TryFutureExt,
  145    paths::{PathStyle, SanitizedPath},
  146    rel_path::RelPath,
  147    serde::default_true,
  148};
  149use uuid::Uuid;
  150pub use workspace_settings::{
  151    AutosaveSetting, BottomDockLayout, FocusFollowsMouse, RestoreOnStartupBehavior,
  152    StatusBarSettings, TabBarSettings, WorkspaceSettings,
  153};
  154use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  155
  156use crate::{dock::PanelSizeState, item::ItemBufferKind, notifications::NotificationId};
  157use crate::{
  158    persistence::{
  159        SerializedAxis,
  160        model::{DockData, SerializedItem, SerializedPane, SerializedPaneGroup},
  161    },
  162    security_modal::SecurityModal,
  163};
  164
  165pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  166
  167static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  168    env::var("ZED_WINDOW_SIZE")
  169        .ok()
  170        .as_deref()
  171        .and_then(parse_pixel_size_env_var)
  172});
  173
  174static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  175    env::var("ZED_WINDOW_POSITION")
  176        .ok()
  177        .as_deref()
  178        .and_then(parse_pixel_position_env_var)
  179});
  180
  181pub trait TerminalProvider {
  182    fn spawn(
  183        &self,
  184        task: SpawnInTerminal,
  185        window: &mut Window,
  186        cx: &mut App,
  187    ) -> Task<Option<Result<ExitStatus>>>;
  188}
  189
  190pub trait DebuggerProvider {
  191    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  192    fn start_session(
  193        &self,
  194        definition: DebugScenario,
  195        task_context: SharedTaskContext,
  196        active_buffer: Option<Entity<Buffer>>,
  197        worktree_id: Option<WorktreeId>,
  198        window: &mut Window,
  199        cx: &mut App,
  200    );
  201
  202    fn spawn_task_or_modal(
  203        &self,
  204        workspace: &mut Workspace,
  205        action: &Spawn,
  206        window: &mut Window,
  207        cx: &mut Context<Workspace>,
  208    );
  209
  210    fn task_scheduled(&self, cx: &mut App);
  211    fn debug_scenario_scheduled(&self, cx: &mut App);
  212    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  213
  214    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  215}
  216
  217/// Opens a file or directory.
  218#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  219#[action(namespace = workspace)]
  220pub struct Open {
  221    /// When true, opens in a new window. When false, adds to the current
  222    /// window as a new workspace (multi-workspace).
  223    #[serde(default = "Open::default_create_new_window")]
  224    pub create_new_window: bool,
  225}
  226
  227impl Open {
  228    pub const DEFAULT: Self = Self {
  229        create_new_window: true,
  230    };
  231
  232    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  233    /// the serde default and `Open::DEFAULT` stay in sync.
  234    fn default_create_new_window() -> bool {
  235        Self::DEFAULT.create_new_window
  236    }
  237}
  238
  239impl Default for Open {
  240    fn default() -> Self {
  241        Self::DEFAULT
  242    }
  243}
  244
  245actions!(
  246    workspace,
  247    [
  248        /// Activates the next pane in the workspace.
  249        ActivateNextPane,
  250        /// Activates the previous pane in the workspace.
  251        ActivatePreviousPane,
  252        /// Activates the last pane in the workspace.
  253        ActivateLastPane,
  254        /// Switches to the next window.
  255        ActivateNextWindow,
  256        /// Switches to the previous window.
  257        ActivatePreviousWindow,
  258        /// Adds a folder to the current project.
  259        AddFolderToProject,
  260        /// Clears all notifications.
  261        ClearAllNotifications,
  262        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  263        ClearNavigationHistory,
  264        /// Closes the active dock.
  265        CloseActiveDock,
  266        /// Closes all docks.
  267        CloseAllDocks,
  268        /// Toggles all docks.
  269        ToggleAllDocks,
  270        /// Closes the current window.
  271        CloseWindow,
  272        /// Closes the current project.
  273        CloseProject,
  274        /// Opens the feedback dialog.
  275        Feedback,
  276        /// Follows the next collaborator in the session.
  277        FollowNextCollaborator,
  278        /// Moves the focused panel to the next position.
  279        MoveFocusedPanelToNextPosition,
  280        /// Creates a new file.
  281        NewFile,
  282        /// Creates a new file in a vertical split.
  283        NewFileSplitVertical,
  284        /// Creates a new file in a horizontal split.
  285        NewFileSplitHorizontal,
  286        /// Opens a new search.
  287        NewSearch,
  288        /// Opens a new window.
  289        NewWindow,
  290        /// Opens multiple files.
  291        OpenFiles,
  292        /// Opens the current location in terminal.
  293        OpenInTerminal,
  294        /// Opens the component preview.
  295        OpenComponentPreview,
  296        /// Reloads the active item.
  297        ReloadActiveItem,
  298        /// Resets the active dock to its default size.
  299        ResetActiveDockSize,
  300        /// Resets all open docks to their default sizes.
  301        ResetOpenDocksSize,
  302        /// Reloads the application
  303        Reload,
  304        /// Saves the current file with a new name.
  305        SaveAs,
  306        /// Saves without formatting.
  307        SaveWithoutFormat,
  308        /// Shuts down all debug adapters.
  309        ShutdownDebugAdapters,
  310        /// Suppresses the current notification.
  311        SuppressNotification,
  312        /// Toggles the bottom dock.
  313        ToggleBottomDock,
  314        /// Toggles centered layout mode.
  315        ToggleCenteredLayout,
  316        /// Toggles edit prediction feature globally for all files.
  317        ToggleEditPrediction,
  318        /// Toggles the left dock.
  319        ToggleLeftDock,
  320        /// Toggles the right dock.
  321        ToggleRightDock,
  322        /// Toggles zoom on the active pane.
  323        ToggleZoom,
  324        /// Toggles read-only mode for the active item (if supported by that item).
  325        ToggleReadOnlyFile,
  326        /// Zooms in on the active pane.
  327        ZoomIn,
  328        /// Zooms out of the active pane.
  329        ZoomOut,
  330        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  331        /// If the modal is shown already, closes it without trusting any worktree.
  332        ToggleWorktreeSecurity,
  333        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  334        /// Requires restart to take effect on already opened projects.
  335        ClearTrustedWorktrees,
  336        /// Stops following a collaborator.
  337        Unfollow,
  338        /// Restores the banner.
  339        RestoreBanner,
  340        /// Toggles expansion of the selected item.
  341        ToggleExpandItem,
  342    ]
  343);
  344
  345/// Activates a specific pane by its index.
  346#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  347#[action(namespace = workspace)]
  348pub struct ActivatePane(pub usize);
  349
  350/// Moves an item to a specific pane by index.
  351#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  352#[action(namespace = workspace)]
  353#[serde(deny_unknown_fields)]
  354pub struct MoveItemToPane {
  355    #[serde(default = "default_1")]
  356    pub destination: usize,
  357    #[serde(default = "default_true")]
  358    pub focus: bool,
  359    #[serde(default)]
  360    pub clone: bool,
  361}
  362
  363fn default_1() -> usize {
  364    1
  365}
  366
  367/// Moves an item to a pane in the specified direction.
  368#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  369#[action(namespace = workspace)]
  370#[serde(deny_unknown_fields)]
  371pub struct MoveItemToPaneInDirection {
  372    #[serde(default = "default_right")]
  373    pub direction: SplitDirection,
  374    #[serde(default = "default_true")]
  375    pub focus: bool,
  376    #[serde(default)]
  377    pub clone: bool,
  378}
  379
  380/// Creates a new file in a split of the desired direction.
  381#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  382#[action(namespace = workspace)]
  383#[serde(deny_unknown_fields)]
  384pub struct NewFileSplit(pub SplitDirection);
  385
  386fn default_right() -> SplitDirection {
  387    SplitDirection::Right
  388}
  389
  390/// Saves all open files in the workspace.
  391#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  392#[action(namespace = workspace)]
  393#[serde(deny_unknown_fields)]
  394pub struct SaveAll {
  395    #[serde(default)]
  396    pub save_intent: Option<SaveIntent>,
  397}
  398
  399/// Saves the current file with the specified options.
  400#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  401#[action(namespace = workspace)]
  402#[serde(deny_unknown_fields)]
  403pub struct Save {
  404    #[serde(default)]
  405    pub save_intent: Option<SaveIntent>,
  406}
  407
  408/// Moves Focus to the central panes in the workspace.
  409#[derive(Clone, Debug, PartialEq, Eq, Action)]
  410#[action(namespace = workspace)]
  411pub struct FocusCenterPane;
  412
  413///  Closes all items and panes in the workspace.
  414#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  415#[action(namespace = workspace)]
  416#[serde(deny_unknown_fields)]
  417pub struct CloseAllItemsAndPanes {
  418    #[serde(default)]
  419    pub save_intent: Option<SaveIntent>,
  420}
  421
  422/// Closes all inactive tabs and panes in the workspace.
  423#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  424#[action(namespace = workspace)]
  425#[serde(deny_unknown_fields)]
  426pub struct CloseInactiveTabsAndPanes {
  427    #[serde(default)]
  428    pub save_intent: Option<SaveIntent>,
  429}
  430
  431/// Closes the active item across all panes.
  432#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  433#[action(namespace = workspace)]
  434#[serde(deny_unknown_fields)]
  435pub struct CloseItemInAllPanes {
  436    #[serde(default)]
  437    pub save_intent: Option<SaveIntent>,
  438    #[serde(default)]
  439    pub close_pinned: bool,
  440}
  441
  442/// Sends a sequence of keystrokes to the active element.
  443#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  444#[action(namespace = workspace)]
  445pub struct SendKeystrokes(pub String);
  446
  447actions!(
  448    project_symbols,
  449    [
  450        /// Toggles the project symbols search.
  451        #[action(name = "Toggle")]
  452        ToggleProjectSymbols
  453    ]
  454);
  455
  456/// Toggles the file finder interface.
  457#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  458#[action(namespace = file_finder, name = "Toggle")]
  459#[serde(deny_unknown_fields)]
  460pub struct ToggleFileFinder {
  461    #[serde(default)]
  462    pub separate_history: bool,
  463}
  464
  465/// Opens a new terminal in the center.
  466#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  467#[action(namespace = workspace)]
  468#[serde(deny_unknown_fields)]
  469pub struct NewCenterTerminal {
  470    /// If true, creates a local terminal even in remote projects.
  471    #[serde(default)]
  472    pub local: bool,
  473}
  474
  475/// Opens a new terminal.
  476#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  477#[action(namespace = workspace)]
  478#[serde(deny_unknown_fields)]
  479pub struct NewTerminal {
  480    /// If true, creates a local terminal even in remote projects.
  481    #[serde(default)]
  482    pub local: bool,
  483}
  484
  485/// Increases size of a currently focused dock by a given amount of pixels.
  486#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  487#[action(namespace = workspace)]
  488#[serde(deny_unknown_fields)]
  489pub struct IncreaseActiveDockSize {
  490    /// For 0px parameter, uses UI font size value.
  491    #[serde(default)]
  492    pub px: u32,
  493}
  494
  495/// Decreases size of a currently focused dock by a given amount of pixels.
  496#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  497#[action(namespace = workspace)]
  498#[serde(deny_unknown_fields)]
  499pub struct DecreaseActiveDockSize {
  500    /// For 0px parameter, uses UI font size value.
  501    #[serde(default)]
  502    pub px: u32,
  503}
  504
  505/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  506#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  507#[action(namespace = workspace)]
  508#[serde(deny_unknown_fields)]
  509pub struct IncreaseOpenDocksSize {
  510    /// For 0px parameter, uses UI font size value.
  511    #[serde(default)]
  512    pub px: u32,
  513}
  514
  515/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  516#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  517#[action(namespace = workspace)]
  518#[serde(deny_unknown_fields)]
  519pub struct DecreaseOpenDocksSize {
  520    /// For 0px parameter, uses UI font size value.
  521    #[serde(default)]
  522    pub px: u32,
  523}
  524
  525actions!(
  526    workspace,
  527    [
  528        /// Activates the pane to the left.
  529        ActivatePaneLeft,
  530        /// Activates the pane to the right.
  531        ActivatePaneRight,
  532        /// Activates the pane above.
  533        ActivatePaneUp,
  534        /// Activates the pane below.
  535        ActivatePaneDown,
  536        /// Swaps the current pane with the one to the left.
  537        SwapPaneLeft,
  538        /// Swaps the current pane with the one to the right.
  539        SwapPaneRight,
  540        /// Swaps the current pane with the one above.
  541        SwapPaneUp,
  542        /// Swaps the current pane with the one below.
  543        SwapPaneDown,
  544        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  545        SwapPaneAdjacent,
  546        /// Move the current pane to be at the far left.
  547        MovePaneLeft,
  548        /// Move the current pane to be at the far right.
  549        MovePaneRight,
  550        /// Move the current pane to be at the very top.
  551        MovePaneUp,
  552        /// Move the current pane to be at the very bottom.
  553        MovePaneDown,
  554    ]
  555);
  556
  557#[derive(PartialEq, Eq, Debug)]
  558pub enum CloseIntent {
  559    /// Quit the program entirely.
  560    Quit,
  561    /// Close a window.
  562    CloseWindow,
  563    /// Replace the workspace in an existing window.
  564    ReplaceWindow,
  565}
  566
  567#[derive(Clone)]
  568pub struct Toast {
  569    id: NotificationId,
  570    msg: Cow<'static, str>,
  571    autohide: bool,
  572    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  573}
  574
  575impl Toast {
  576    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  577        Toast {
  578            id,
  579            msg: msg.into(),
  580            on_click: None,
  581            autohide: false,
  582        }
  583    }
  584
  585    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  586    where
  587        M: Into<Cow<'static, str>>,
  588        F: Fn(&mut Window, &mut App) + 'static,
  589    {
  590        self.on_click = Some((message.into(), Arc::new(on_click)));
  591        self
  592    }
  593
  594    pub fn autohide(mut self) -> Self {
  595        self.autohide = true;
  596        self
  597    }
  598}
  599
  600impl PartialEq for Toast {
  601    fn eq(&self, other: &Self) -> bool {
  602        self.id == other.id
  603            && self.msg == other.msg
  604            && self.on_click.is_some() == other.on_click.is_some()
  605    }
  606}
  607
  608/// Opens a new terminal with the specified working directory.
  609#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  610#[action(namespace = workspace)]
  611#[serde(deny_unknown_fields)]
  612pub struct OpenTerminal {
  613    pub working_directory: PathBuf,
  614    /// If true, creates a local terminal even in remote projects.
  615    #[serde(default)]
  616    pub local: bool,
  617}
  618
  619#[derive(
  620    Clone,
  621    Copy,
  622    Debug,
  623    Default,
  624    Hash,
  625    PartialEq,
  626    Eq,
  627    PartialOrd,
  628    Ord,
  629    serde::Serialize,
  630    serde::Deserialize,
  631)]
  632pub struct WorkspaceId(i64);
  633
  634impl WorkspaceId {
  635    pub fn from_i64(value: i64) -> Self {
  636        Self(value)
  637    }
  638}
  639
  640impl StaticColumnCount for WorkspaceId {}
  641impl Bind for WorkspaceId {
  642    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  643        self.0.bind(statement, start_index)
  644    }
  645}
  646impl Column for WorkspaceId {
  647    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  648        i64::column(statement, start_index)
  649            .map(|(i, next_index)| (Self(i), next_index))
  650            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  651    }
  652}
  653impl From<WorkspaceId> for i64 {
  654    fn from(val: WorkspaceId) -> Self {
  655        val.0
  656    }
  657}
  658
  659fn prompt_and_open_paths(
  660    app_state: Arc<AppState>,
  661    options: PathPromptOptions,
  662    create_new_window: bool,
  663    cx: &mut App,
  664) {
  665    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  666        workspace_window
  667            .update(cx, |multi_workspace, window, cx| {
  668                let workspace = multi_workspace.workspace().clone();
  669                workspace.update(cx, |workspace, cx| {
  670                    prompt_for_open_path_and_open(
  671                        workspace,
  672                        app_state,
  673                        options,
  674                        create_new_window,
  675                        window,
  676                        cx,
  677                    );
  678                });
  679            })
  680            .ok();
  681    } else {
  682        let task = Workspace::new_local(
  683            Vec::new(),
  684            app_state.clone(),
  685            None,
  686            None,
  687            None,
  688            OpenMode::Activate,
  689            cx,
  690        );
  691        cx.spawn(async move |cx| {
  692            let OpenResult { window, .. } = task.await?;
  693            window.update(cx, |multi_workspace, window, cx| {
  694                window.activate_window();
  695                let workspace = multi_workspace.workspace().clone();
  696                workspace.update(cx, |workspace, cx| {
  697                    prompt_for_open_path_and_open(
  698                        workspace,
  699                        app_state,
  700                        options,
  701                        create_new_window,
  702                        window,
  703                        cx,
  704                    );
  705                });
  706            })?;
  707            anyhow::Ok(())
  708        })
  709        .detach_and_log_err(cx);
  710    }
  711}
  712
  713pub fn prompt_for_open_path_and_open(
  714    workspace: &mut Workspace,
  715    app_state: Arc<AppState>,
  716    options: PathPromptOptions,
  717    create_new_window: bool,
  718    window: &mut Window,
  719    cx: &mut Context<Workspace>,
  720) {
  721    let paths = workspace.prompt_for_open_path(
  722        options,
  723        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  724        window,
  725        cx,
  726    );
  727    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  728    cx.spawn_in(window, async move |this, cx| {
  729        let Some(paths) = paths.await.log_err().flatten() else {
  730            return;
  731        };
  732        if !create_new_window {
  733            if let Some(handle) = multi_workspace_handle {
  734                if let Some(task) = handle
  735                    .update(cx, |multi_workspace, window, cx| {
  736                        multi_workspace.open_project(paths, OpenMode::Activate, window, cx)
  737                    })
  738                    .log_err()
  739                {
  740                    task.await.log_err();
  741                }
  742                return;
  743            }
  744        }
  745        if let Some(task) = this
  746            .update_in(cx, |this, window, cx| {
  747                this.open_workspace_for_paths(OpenMode::NewWindow, paths, window, cx)
  748            })
  749            .log_err()
  750        {
  751            task.await.log_err();
  752        }
  753    })
  754    .detach();
  755}
  756
  757pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  758    component::init();
  759    theme_preview::init(cx);
  760    toast_layer::init(cx);
  761    history_manager::init(app_state.fs.clone(), cx);
  762
  763    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  764        .on_action(|_: &Reload, cx| reload(cx))
  765        .on_action(|action: &Open, cx: &mut App| {
  766            let app_state = AppState::global(cx);
  767            prompt_and_open_paths(
  768                app_state,
  769                PathPromptOptions {
  770                    files: true,
  771                    directories: true,
  772                    multiple: true,
  773                    prompt: None,
  774                },
  775                action.create_new_window,
  776                cx,
  777            );
  778        })
  779        .on_action(|_: &OpenFiles, cx: &mut App| {
  780            let directories = cx.can_select_mixed_files_and_dirs();
  781            let app_state = AppState::global(cx);
  782            prompt_and_open_paths(
  783                app_state,
  784                PathPromptOptions {
  785                    files: true,
  786                    directories,
  787                    multiple: true,
  788                    prompt: None,
  789                },
  790                true,
  791                cx,
  792            );
  793        });
  794}
  795
  796type BuildProjectItemFn =
  797    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  798
  799type BuildProjectItemForPathFn =
  800    fn(
  801        &Entity<Project>,
  802        &ProjectPath,
  803        &mut Window,
  804        &mut App,
  805    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  806
  807#[derive(Clone, Default)]
  808struct ProjectItemRegistry {
  809    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  810    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  811}
  812
  813impl ProjectItemRegistry {
  814    fn register<T: ProjectItem>(&mut self) {
  815        self.build_project_item_fns_by_type.insert(
  816            TypeId::of::<T::Item>(),
  817            |item, project, pane, window, cx| {
  818                let item = item.downcast().unwrap();
  819                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  820                    as Box<dyn ItemHandle>
  821            },
  822        );
  823        self.build_project_item_for_path_fns
  824            .push(|project, project_path, window, cx| {
  825                let project_path = project_path.clone();
  826                let is_file = project
  827                    .read(cx)
  828                    .entry_for_path(&project_path, cx)
  829                    .is_some_and(|entry| entry.is_file());
  830                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  831                let is_local = project.read(cx).is_local();
  832                let project_item =
  833                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  834                let project = project.clone();
  835                Some(window.spawn(cx, async move |cx| {
  836                    match project_item.await.with_context(|| {
  837                        format!(
  838                            "opening project path {:?}",
  839                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  840                        )
  841                    }) {
  842                        Ok(project_item) => {
  843                            let project_item = project_item;
  844                            let project_entry_id: Option<ProjectEntryId> =
  845                                project_item.read_with(cx, project::ProjectItem::entry_id);
  846                            let build_workspace_item = Box::new(
  847                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  848                                    Box::new(cx.new(|cx| {
  849                                        T::for_project_item(
  850                                            project,
  851                                            Some(pane),
  852                                            project_item,
  853                                            window,
  854                                            cx,
  855                                        )
  856                                    })) as Box<dyn ItemHandle>
  857                                },
  858                            ) as Box<_>;
  859                            Ok((project_entry_id, build_workspace_item))
  860                        }
  861                        Err(e) => {
  862                            log::warn!("Failed to open a project item: {e:#}");
  863                            if e.error_code() == ErrorCode::Internal {
  864                                if let Some(abs_path) =
  865                                    entry_abs_path.as_deref().filter(|_| is_file)
  866                                {
  867                                    if let Some(broken_project_item_view) =
  868                                        cx.update(|window, cx| {
  869                                            T::for_broken_project_item(
  870                                                abs_path, is_local, &e, window, cx,
  871                                            )
  872                                        })?
  873                                    {
  874                                        let build_workspace_item = Box::new(
  875                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  876                                                cx.new(|_| broken_project_item_view).boxed_clone()
  877                                            },
  878                                        )
  879                                        as Box<_>;
  880                                        return Ok((None, build_workspace_item));
  881                                    }
  882                                }
  883                            }
  884                            Err(e)
  885                        }
  886                    }
  887                }))
  888            });
  889    }
  890
  891    fn open_path(
  892        &self,
  893        project: &Entity<Project>,
  894        path: &ProjectPath,
  895        window: &mut Window,
  896        cx: &mut App,
  897    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  898        let Some(open_project_item) = self
  899            .build_project_item_for_path_fns
  900            .iter()
  901            .rev()
  902            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  903        else {
  904            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  905        };
  906        open_project_item
  907    }
  908
  909    fn build_item<T: project::ProjectItem>(
  910        &self,
  911        item: Entity<T>,
  912        project: Entity<Project>,
  913        pane: Option<&Pane>,
  914        window: &mut Window,
  915        cx: &mut App,
  916    ) -> Option<Box<dyn ItemHandle>> {
  917        let build = self
  918            .build_project_item_fns_by_type
  919            .get(&TypeId::of::<T>())?;
  920        Some(build(item.into_any(), project, pane, window, cx))
  921    }
  922}
  923
  924type WorkspaceItemBuilder =
  925    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  926
  927impl Global for ProjectItemRegistry {}
  928
  929/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  930/// items will get a chance to open the file, starting from the project item that
  931/// was added last.
  932pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  933    cx.default_global::<ProjectItemRegistry>().register::<I>();
  934}
  935
  936#[derive(Default)]
  937pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  938
  939struct FollowableViewDescriptor {
  940    from_state_proto: fn(
  941        Entity<Workspace>,
  942        ViewId,
  943        &mut Option<proto::view::Variant>,
  944        &mut Window,
  945        &mut App,
  946    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  947    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  948}
  949
  950impl Global for FollowableViewRegistry {}
  951
  952impl FollowableViewRegistry {
  953    pub fn register<I: FollowableItem>(cx: &mut App) {
  954        cx.default_global::<Self>().0.insert(
  955            TypeId::of::<I>(),
  956            FollowableViewDescriptor {
  957                from_state_proto: |workspace, id, state, window, cx| {
  958                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  959                        cx.foreground_executor()
  960                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  961                    })
  962                },
  963                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  964            },
  965        );
  966    }
  967
  968    pub fn from_state_proto(
  969        workspace: Entity<Workspace>,
  970        view_id: ViewId,
  971        mut state: Option<proto::view::Variant>,
  972        window: &mut Window,
  973        cx: &mut App,
  974    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  975        cx.update_default_global(|this: &mut Self, cx| {
  976            this.0.values().find_map(|descriptor| {
  977                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  978            })
  979        })
  980    }
  981
  982    pub fn to_followable_view(
  983        view: impl Into<AnyView>,
  984        cx: &App,
  985    ) -> Option<Box<dyn FollowableItemHandle>> {
  986        let this = cx.try_global::<Self>()?;
  987        let view = view.into();
  988        let descriptor = this.0.get(&view.entity_type())?;
  989        Some((descriptor.to_followable_view)(&view))
  990    }
  991}
  992
  993#[derive(Copy, Clone)]
  994struct SerializableItemDescriptor {
  995    deserialize: fn(
  996        Entity<Project>,
  997        WeakEntity<Workspace>,
  998        WorkspaceId,
  999        ItemId,
 1000        &mut Window,
 1001        &mut Context<Pane>,
 1002    ) -> Task<Result<Box<dyn ItemHandle>>>,
 1003    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
 1004    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
 1005}
 1006
 1007#[derive(Default)]
 1008struct SerializableItemRegistry {
 1009    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
 1010    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
 1011}
 1012
 1013impl Global for SerializableItemRegistry {}
 1014
 1015impl SerializableItemRegistry {
 1016    fn deserialize(
 1017        item_kind: &str,
 1018        project: Entity<Project>,
 1019        workspace: WeakEntity<Workspace>,
 1020        workspace_id: WorkspaceId,
 1021        item_item: ItemId,
 1022        window: &mut Window,
 1023        cx: &mut Context<Pane>,
 1024    ) -> Task<Result<Box<dyn ItemHandle>>> {
 1025        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1026            return Task::ready(Err(anyhow!(
 1027                "cannot deserialize {}, descriptor not found",
 1028                item_kind
 1029            )));
 1030        };
 1031
 1032        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1033    }
 1034
 1035    fn cleanup(
 1036        item_kind: &str,
 1037        workspace_id: WorkspaceId,
 1038        loaded_items: Vec<ItemId>,
 1039        window: &mut Window,
 1040        cx: &mut App,
 1041    ) -> Task<Result<()>> {
 1042        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1043            return Task::ready(Err(anyhow!(
 1044                "cannot cleanup {}, descriptor not found",
 1045                item_kind
 1046            )));
 1047        };
 1048
 1049        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1050    }
 1051
 1052    fn view_to_serializable_item_handle(
 1053        view: AnyView,
 1054        cx: &App,
 1055    ) -> Option<Box<dyn SerializableItemHandle>> {
 1056        let this = cx.try_global::<Self>()?;
 1057        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1058        Some((descriptor.view_to_serializable_item)(view))
 1059    }
 1060
 1061    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1062        let this = cx.try_global::<Self>()?;
 1063        this.descriptors_by_kind.get(item_kind).copied()
 1064    }
 1065}
 1066
 1067pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1068    let serialized_item_kind = I::serialized_item_kind();
 1069
 1070    let registry = cx.default_global::<SerializableItemRegistry>();
 1071    let descriptor = SerializableItemDescriptor {
 1072        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1073            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1074            cx.foreground_executor()
 1075                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1076        },
 1077        cleanup: |workspace_id, loaded_items, window, cx| {
 1078            I::cleanup(workspace_id, loaded_items, window, cx)
 1079        },
 1080        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1081    };
 1082    registry
 1083        .descriptors_by_kind
 1084        .insert(Arc::from(serialized_item_kind), descriptor);
 1085    registry
 1086        .descriptors_by_type
 1087        .insert(TypeId::of::<I>(), descriptor);
 1088}
 1089
 1090pub struct AppState {
 1091    pub languages: Arc<LanguageRegistry>,
 1092    pub client: Arc<Client>,
 1093    pub user_store: Entity<UserStore>,
 1094    pub workspace_store: Entity<WorkspaceStore>,
 1095    pub fs: Arc<dyn fs::Fs>,
 1096    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1097    pub node_runtime: NodeRuntime,
 1098    pub session: Entity<AppSession>,
 1099}
 1100
 1101struct GlobalAppState(Arc<AppState>);
 1102
 1103impl Global for GlobalAppState {}
 1104
 1105pub struct WorkspaceStore {
 1106    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1107    client: Arc<Client>,
 1108    _subscriptions: Vec<client::Subscription>,
 1109}
 1110
 1111#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1112pub enum CollaboratorId {
 1113    PeerId(PeerId),
 1114    Agent,
 1115}
 1116
 1117impl From<PeerId> for CollaboratorId {
 1118    fn from(peer_id: PeerId) -> Self {
 1119        CollaboratorId::PeerId(peer_id)
 1120    }
 1121}
 1122
 1123impl From<&PeerId> for CollaboratorId {
 1124    fn from(peer_id: &PeerId) -> Self {
 1125        CollaboratorId::PeerId(*peer_id)
 1126    }
 1127}
 1128
 1129#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1130struct Follower {
 1131    project_id: Option<u64>,
 1132    peer_id: PeerId,
 1133}
 1134
 1135impl AppState {
 1136    #[track_caller]
 1137    pub fn global(cx: &App) -> Arc<Self> {
 1138        cx.global::<GlobalAppState>().0.clone()
 1139    }
 1140    pub fn try_global(cx: &App) -> Option<Arc<Self>> {
 1141        cx.try_global::<GlobalAppState>()
 1142            .map(|state| state.0.clone())
 1143    }
 1144    pub fn set_global(state: Arc<AppState>, cx: &mut App) {
 1145        cx.set_global(GlobalAppState(state));
 1146    }
 1147
 1148    #[cfg(any(test, feature = "test-support"))]
 1149    pub fn test(cx: &mut App) -> Arc<Self> {
 1150        use fs::Fs;
 1151        use node_runtime::NodeRuntime;
 1152        use session::Session;
 1153        use settings::SettingsStore;
 1154
 1155        if !cx.has_global::<SettingsStore>() {
 1156            let settings_store = SettingsStore::test(cx);
 1157            cx.set_global(settings_store);
 1158        }
 1159
 1160        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1161        <dyn Fs>::set_global(fs.clone(), cx);
 1162        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1163        let clock = Arc::new(clock::FakeSystemClock::new());
 1164        let http_client = http_client::FakeHttpClient::with_404_response();
 1165        let client = Client::new(clock, http_client, cx);
 1166        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1167        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1168        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1169
 1170        theme_settings::init(theme::LoadThemes::JustBase, cx);
 1171        client::init(&client, cx);
 1172
 1173        Arc::new(Self {
 1174            client,
 1175            fs,
 1176            languages,
 1177            user_store,
 1178            workspace_store,
 1179            node_runtime: NodeRuntime::unavailable(),
 1180            build_window_options: |_, _| Default::default(),
 1181            session,
 1182        })
 1183    }
 1184}
 1185
 1186struct DelayedDebouncedEditAction {
 1187    task: Option<Task<()>>,
 1188    cancel_channel: Option<oneshot::Sender<()>>,
 1189}
 1190
 1191impl DelayedDebouncedEditAction {
 1192    fn new() -> DelayedDebouncedEditAction {
 1193        DelayedDebouncedEditAction {
 1194            task: None,
 1195            cancel_channel: None,
 1196        }
 1197    }
 1198
 1199    fn fire_new<F>(
 1200        &mut self,
 1201        delay: Duration,
 1202        window: &mut Window,
 1203        cx: &mut Context<Workspace>,
 1204        func: F,
 1205    ) where
 1206        F: 'static
 1207            + Send
 1208            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1209    {
 1210        if let Some(channel) = self.cancel_channel.take() {
 1211            _ = channel.send(());
 1212        }
 1213
 1214        let (sender, mut receiver) = oneshot::channel::<()>();
 1215        self.cancel_channel = Some(sender);
 1216
 1217        let previous_task = self.task.take();
 1218        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1219            let mut timer = cx.background_executor().timer(delay).fuse();
 1220            if let Some(previous_task) = previous_task {
 1221                previous_task.await;
 1222            }
 1223
 1224            futures::select_biased! {
 1225                _ = receiver => return,
 1226                    _ = timer => {}
 1227            }
 1228
 1229            if let Some(result) = workspace
 1230                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1231                .log_err()
 1232            {
 1233                result.await.log_err();
 1234            }
 1235        }));
 1236    }
 1237}
 1238
 1239pub enum Event {
 1240    PaneAdded(Entity<Pane>),
 1241    PaneRemoved,
 1242    ItemAdded {
 1243        item: Box<dyn ItemHandle>,
 1244    },
 1245    ActiveItemChanged,
 1246    ItemRemoved {
 1247        item_id: EntityId,
 1248    },
 1249    UserSavedItem {
 1250        pane: WeakEntity<Pane>,
 1251        item: Box<dyn WeakItemHandle>,
 1252        save_intent: SaveIntent,
 1253    },
 1254    ContactRequestedJoin(u64),
 1255    WorkspaceCreated(WeakEntity<Workspace>),
 1256    OpenBundledFile {
 1257        text: Cow<'static, str>,
 1258        title: &'static str,
 1259        language: &'static str,
 1260    },
 1261    ZoomChanged,
 1262    ModalOpened,
 1263    Activate,
 1264    PanelAdded(AnyView),
 1265}
 1266
 1267#[derive(Debug, Clone)]
 1268pub enum OpenVisible {
 1269    All,
 1270    None,
 1271    OnlyFiles,
 1272    OnlyDirectories,
 1273}
 1274
 1275enum WorkspaceLocation {
 1276    // Valid local paths or SSH project to serialize
 1277    Location(SerializedWorkspaceLocation, PathList),
 1278    // No valid location found hence clear session id
 1279    DetachFromSession,
 1280    // No valid location found to serialize
 1281    None,
 1282}
 1283
 1284type PromptForNewPath = Box<
 1285    dyn Fn(
 1286        &mut Workspace,
 1287        DirectoryLister,
 1288        Option<String>,
 1289        &mut Window,
 1290        &mut Context<Workspace>,
 1291    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1292>;
 1293
 1294type PromptForOpenPath = Box<
 1295    dyn Fn(
 1296        &mut Workspace,
 1297        DirectoryLister,
 1298        &mut Window,
 1299        &mut Context<Workspace>,
 1300    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1301>;
 1302
 1303#[derive(Default)]
 1304struct DispatchingKeystrokes {
 1305    dispatched: HashSet<Vec<Keystroke>>,
 1306    queue: VecDeque<Keystroke>,
 1307    task: Option<Shared<Task<()>>>,
 1308}
 1309
 1310/// Collects everything project-related for a certain window opened.
 1311/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1312///
 1313/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1314/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1315/// that can be used to register a global action to be triggered from any place in the window.
 1316pub struct Workspace {
 1317    weak_self: WeakEntity<Self>,
 1318    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1319    zoomed: Option<AnyWeakView>,
 1320    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1321    zoomed_position: Option<DockPosition>,
 1322    center: PaneGroup,
 1323    left_dock: Entity<Dock>,
 1324    bottom_dock: Entity<Dock>,
 1325    right_dock: Entity<Dock>,
 1326    panes: Vec<Entity<Pane>>,
 1327    active_worktree_override: Option<WorktreeId>,
 1328    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1329    active_pane: Entity<Pane>,
 1330    last_active_center_pane: Option<WeakEntity<Pane>>,
 1331    last_active_view_id: Option<proto::ViewId>,
 1332    status_bar: Entity<StatusBar>,
 1333    pub(crate) modal_layer: Entity<ModalLayer>,
 1334    toast_layer: Entity<ToastLayer>,
 1335    titlebar_item: Option<AnyView>,
 1336    notifications: Notifications,
 1337    suppressed_notifications: HashSet<NotificationId>,
 1338    project: Entity<Project>,
 1339    follower_states: HashMap<CollaboratorId, FollowerState>,
 1340    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1341    window_edited: bool,
 1342    last_window_title: Option<String>,
 1343    dirty_items: HashMap<EntityId, Subscription>,
 1344    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1345    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1346    database_id: Option<WorkspaceId>,
 1347    app_state: Arc<AppState>,
 1348    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1349    _subscriptions: Vec<Subscription>,
 1350    _apply_leader_updates: Task<Result<()>>,
 1351    _observe_current_user: Task<Result<()>>,
 1352    _schedule_serialize_workspace: Option<Task<()>>,
 1353    _serialize_workspace_task: Option<Task<()>>,
 1354    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1355    pane_history_timestamp: Arc<AtomicUsize>,
 1356    bounds: Bounds<Pixels>,
 1357    pub centered_layout: bool,
 1358    bounds_save_task_queued: Option<Task<()>>,
 1359    on_prompt_for_new_path: Option<PromptForNewPath>,
 1360    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1361    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1362    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1363    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1364    _items_serializer: Task<Result<()>>,
 1365    session_id: Option<String>,
 1366    scheduled_tasks: Vec<Task<()>>,
 1367    last_open_dock_positions: Vec<DockPosition>,
 1368    removing: bool,
 1369    open_in_dev_container: bool,
 1370    _dev_container_task: Option<Task<Result<()>>>,
 1371    _panels_task: Option<Task<Result<()>>>,
 1372    sidebar_focus_handle: Option<FocusHandle>,
 1373    multi_workspace: Option<WeakEntity<MultiWorkspace>>,
 1374}
 1375
 1376impl EventEmitter<Event> for Workspace {}
 1377
 1378#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1379pub struct ViewId {
 1380    pub creator: CollaboratorId,
 1381    pub id: u64,
 1382}
 1383
 1384pub struct FollowerState {
 1385    center_pane: Entity<Pane>,
 1386    dock_pane: Option<Entity<Pane>>,
 1387    active_view_id: Option<ViewId>,
 1388    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1389}
 1390
 1391struct FollowerView {
 1392    view: Box<dyn FollowableItemHandle>,
 1393    location: Option<proto::PanelId>,
 1394}
 1395
 1396#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 1397pub enum OpenMode {
 1398    /// Open the workspace in a new window.
 1399    NewWindow,
 1400    /// Add to the window's multi workspace without activating it (used during deserialization).
 1401    Add,
 1402    /// Add to the window's multi workspace and activate it.
 1403    #[default]
 1404    Activate,
 1405}
 1406
 1407impl Workspace {
 1408    pub fn new(
 1409        workspace_id: Option<WorkspaceId>,
 1410        project: Entity<Project>,
 1411        app_state: Arc<AppState>,
 1412        window: &mut Window,
 1413        cx: &mut Context<Self>,
 1414    ) -> Self {
 1415        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1416            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1417                if let TrustedWorktreesEvent::Trusted(..) = e {
 1418                    // Do not persist auto trusted worktrees
 1419                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1420                        worktrees_store.update(cx, |worktrees_store, cx| {
 1421                            worktrees_store.schedule_serialization(
 1422                                cx,
 1423                                |new_trusted_worktrees, cx| {
 1424                                    let timeout =
 1425                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1426                                    let db = WorkspaceDb::global(cx);
 1427                                    cx.background_spawn(async move {
 1428                                        timeout.await;
 1429                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1430                                            .await
 1431                                            .log_err();
 1432                                    })
 1433                                },
 1434                            )
 1435                        });
 1436                    }
 1437                }
 1438            })
 1439            .detach();
 1440
 1441            cx.observe_global::<SettingsStore>(|_, cx| {
 1442                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1443                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1444                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1445                            trusted_worktrees.auto_trust_all(cx);
 1446                        })
 1447                    }
 1448                }
 1449            })
 1450            .detach();
 1451        }
 1452
 1453        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1454            match event {
 1455                project::Event::RemoteIdChanged(_) => {
 1456                    this.update_window_title(window, cx);
 1457                }
 1458
 1459                project::Event::CollaboratorLeft(peer_id) => {
 1460                    this.collaborator_left(*peer_id, window, cx);
 1461                }
 1462
 1463                &project::Event::WorktreeRemoved(_) => {
 1464                    this.update_window_title(window, cx);
 1465                    this.serialize_workspace(window, cx);
 1466                    this.update_history(cx);
 1467                }
 1468
 1469                &project::Event::WorktreeAdded(id) => {
 1470                    this.update_window_title(window, cx);
 1471                    if this
 1472                        .project()
 1473                        .read(cx)
 1474                        .worktree_for_id(id, cx)
 1475                        .is_some_and(|wt| wt.read(cx).is_visible())
 1476                    {
 1477                        this.serialize_workspace(window, cx);
 1478                        this.update_history(cx);
 1479                    }
 1480                }
 1481                project::Event::WorktreeUpdatedEntries(..) => {
 1482                    this.update_window_title(window, cx);
 1483                    this.serialize_workspace(window, cx);
 1484                }
 1485
 1486                project::Event::DisconnectedFromHost => {
 1487                    this.update_window_edited(window, cx);
 1488                    let leaders_to_unfollow =
 1489                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1490                    for leader_id in leaders_to_unfollow {
 1491                        this.unfollow(leader_id, window, cx);
 1492                    }
 1493                }
 1494
 1495                project::Event::DisconnectedFromRemote {
 1496                    server_not_running: _,
 1497                } => {
 1498                    this.update_window_edited(window, cx);
 1499                }
 1500
 1501                project::Event::Closed => {
 1502                    window.remove_window();
 1503                }
 1504
 1505                project::Event::DeletedEntry(_, entry_id) => {
 1506                    for pane in this.panes.iter() {
 1507                        pane.update(cx, |pane, cx| {
 1508                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1509                        });
 1510                    }
 1511                }
 1512
 1513                project::Event::Toast {
 1514                    notification_id,
 1515                    message,
 1516                    link,
 1517                } => this.show_notification(
 1518                    NotificationId::named(notification_id.clone()),
 1519                    cx,
 1520                    |cx| {
 1521                        let mut notification = MessageNotification::new(message.clone(), cx);
 1522                        if let Some(link) = link {
 1523                            notification = notification
 1524                                .more_info_message(link.label)
 1525                                .more_info_url(link.url);
 1526                        }
 1527
 1528                        cx.new(|_| notification)
 1529                    },
 1530                ),
 1531
 1532                project::Event::HideToast { notification_id } => {
 1533                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1534                }
 1535
 1536                project::Event::LanguageServerPrompt(request) => {
 1537                    struct LanguageServerPrompt;
 1538
 1539                    this.show_notification(
 1540                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1541                        cx,
 1542                        |cx| {
 1543                            cx.new(|cx| {
 1544                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1545                            })
 1546                        },
 1547                    );
 1548                }
 1549
 1550                project::Event::AgentLocationChanged => {
 1551                    this.handle_agent_location_changed(window, cx)
 1552                }
 1553
 1554                _ => {}
 1555            }
 1556            cx.notify()
 1557        })
 1558        .detach();
 1559
 1560        cx.subscribe_in(
 1561            &project.read(cx).breakpoint_store(),
 1562            window,
 1563            |workspace, _, event, window, cx| match event {
 1564                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1565                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1566                    workspace.serialize_workspace(window, cx);
 1567                }
 1568                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1569            },
 1570        )
 1571        .detach();
 1572        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1573            cx.subscribe_in(
 1574                &toolchain_store,
 1575                window,
 1576                |workspace, _, event, window, cx| match event {
 1577                    ToolchainStoreEvent::CustomToolchainsModified => {
 1578                        workspace.serialize_workspace(window, cx);
 1579                    }
 1580                    _ => {}
 1581                },
 1582            )
 1583            .detach();
 1584        }
 1585
 1586        cx.on_focus_lost(window, |this, window, cx| {
 1587            let focus_handle = this.focus_handle(cx);
 1588            window.focus(&focus_handle, cx);
 1589        })
 1590        .detach();
 1591
 1592        let weak_handle = cx.entity().downgrade();
 1593        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1594
 1595        let center_pane = cx.new(|cx| {
 1596            let mut center_pane = Pane::new(
 1597                weak_handle.clone(),
 1598                project.clone(),
 1599                pane_history_timestamp.clone(),
 1600                None,
 1601                NewFile.boxed_clone(),
 1602                true,
 1603                window,
 1604                cx,
 1605            );
 1606            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1607            center_pane.set_should_display_welcome_page(true);
 1608            center_pane
 1609        });
 1610        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1611            .detach();
 1612
 1613        window.focus(&center_pane.focus_handle(cx), cx);
 1614
 1615        cx.emit(Event::PaneAdded(center_pane.clone()));
 1616
 1617        let any_window_handle = window.window_handle();
 1618        app_state.workspace_store.update(cx, |store, _| {
 1619            store
 1620                .workspaces
 1621                .insert((any_window_handle, weak_handle.clone()));
 1622        });
 1623
 1624        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1625        let mut connection_status = app_state.client.status();
 1626        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1627            current_user.next().await;
 1628            connection_status.next().await;
 1629            let mut stream =
 1630                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1631
 1632            while stream.recv().await.is_some() {
 1633                this.update(cx, |_, cx| cx.notify())?;
 1634            }
 1635            anyhow::Ok(())
 1636        });
 1637
 1638        // All leader updates are enqueued and then processed in a single task, so
 1639        // that each asynchronous operation can be run in order.
 1640        let (leader_updates_tx, mut leader_updates_rx) =
 1641            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1642        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1643            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1644                Self::process_leader_update(&this, leader_id, update, cx)
 1645                    .await
 1646                    .log_err();
 1647            }
 1648
 1649            Ok(())
 1650        });
 1651
 1652        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1653        let modal_layer = cx.new(|_| ModalLayer::new());
 1654        let toast_layer = cx.new(|_| ToastLayer::new());
 1655        cx.subscribe(
 1656            &modal_layer,
 1657            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1658                cx.emit(Event::ModalOpened);
 1659            },
 1660        )
 1661        .detach();
 1662
 1663        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1664        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1665        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1666        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1667        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1668        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1669        let multi_workspace = window
 1670            .root::<MultiWorkspace>()
 1671            .flatten()
 1672            .map(|mw| mw.downgrade());
 1673        let status_bar = cx.new(|cx| {
 1674            let mut status_bar =
 1675                StatusBar::new(&center_pane.clone(), multi_workspace.clone(), window, cx);
 1676            status_bar.add_left_item(left_dock_buttons, window, cx);
 1677            status_bar.add_right_item(right_dock_buttons, window, cx);
 1678            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1679            status_bar
 1680        });
 1681
 1682        let session_id = app_state.session.read(cx).id().to_owned();
 1683
 1684        let mut active_call = None;
 1685        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1686            let subscriptions =
 1687                vec![
 1688                    call.0
 1689                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1690                ];
 1691            active_call = Some((call, subscriptions));
 1692        }
 1693
 1694        let (serializable_items_tx, serializable_items_rx) =
 1695            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1696        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1697            Self::serialize_items(&this, serializable_items_rx, cx).await
 1698        });
 1699
 1700        let subscriptions = vec![
 1701            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1702            cx.observe_window_bounds(window, move |this, window, cx| {
 1703                if this.bounds_save_task_queued.is_some() {
 1704                    return;
 1705                }
 1706                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1707                    cx.background_executor()
 1708                        .timer(Duration::from_millis(100))
 1709                        .await;
 1710                    this.update_in(cx, |this, window, cx| {
 1711                        this.save_window_bounds(window, cx).detach();
 1712                        this.bounds_save_task_queued.take();
 1713                    })
 1714                    .ok();
 1715                }));
 1716                cx.notify();
 1717            }),
 1718            cx.observe_window_appearance(window, |_, window, cx| {
 1719                let window_appearance = window.appearance();
 1720
 1721                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1722
 1723                theme_settings::reload_theme(cx);
 1724                theme_settings::reload_icon_theme(cx);
 1725            }),
 1726            cx.on_release({
 1727                let weak_handle = weak_handle.clone();
 1728                move |this, cx| {
 1729                    this.app_state.workspace_store.update(cx, move |store, _| {
 1730                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1731                    })
 1732                }
 1733            }),
 1734        ];
 1735
 1736        cx.defer_in(window, move |this, window, cx| {
 1737            this.update_window_title(window, cx);
 1738            this.show_initial_notifications(cx);
 1739        });
 1740
 1741        let mut center = PaneGroup::new(center_pane.clone());
 1742        center.set_is_center(true);
 1743        center.mark_positions(cx);
 1744
 1745        Workspace {
 1746            weak_self: weak_handle.clone(),
 1747            zoomed: None,
 1748            zoomed_position: None,
 1749            previous_dock_drag_coordinates: None,
 1750            center,
 1751            panes: vec![center_pane.clone()],
 1752            panes_by_item: Default::default(),
 1753            active_pane: center_pane.clone(),
 1754            last_active_center_pane: Some(center_pane.downgrade()),
 1755            last_active_view_id: None,
 1756            status_bar,
 1757            modal_layer,
 1758            toast_layer,
 1759            titlebar_item: None,
 1760            active_worktree_override: None,
 1761            notifications: Notifications::default(),
 1762            suppressed_notifications: HashSet::default(),
 1763            left_dock,
 1764            bottom_dock,
 1765            right_dock,
 1766            _panels_task: None,
 1767            project: project.clone(),
 1768            follower_states: Default::default(),
 1769            last_leaders_by_pane: Default::default(),
 1770            dispatching_keystrokes: Default::default(),
 1771            window_edited: false,
 1772            last_window_title: None,
 1773            dirty_items: Default::default(),
 1774            active_call,
 1775            database_id: workspace_id,
 1776            app_state,
 1777            _observe_current_user,
 1778            _apply_leader_updates,
 1779            _schedule_serialize_workspace: None,
 1780            _serialize_workspace_task: None,
 1781            _schedule_serialize_ssh_paths: None,
 1782            leader_updates_tx,
 1783            _subscriptions: subscriptions,
 1784            pane_history_timestamp,
 1785            workspace_actions: Default::default(),
 1786            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1787            bounds: Default::default(),
 1788            centered_layout: false,
 1789            bounds_save_task_queued: None,
 1790            on_prompt_for_new_path: None,
 1791            on_prompt_for_open_path: None,
 1792            terminal_provider: None,
 1793            debugger_provider: None,
 1794            serializable_items_tx,
 1795            _items_serializer,
 1796            session_id: Some(session_id),
 1797
 1798            scheduled_tasks: Vec::new(),
 1799            last_open_dock_positions: Vec::new(),
 1800            removing: false,
 1801            sidebar_focus_handle: None,
 1802            multi_workspace,
 1803            open_in_dev_container: false,
 1804            _dev_container_task: None,
 1805        }
 1806    }
 1807
 1808    pub fn new_local(
 1809        abs_paths: Vec<PathBuf>,
 1810        app_state: Arc<AppState>,
 1811        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1812        env: Option<HashMap<String, String>>,
 1813        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1814        open_mode: OpenMode,
 1815        cx: &mut App,
 1816    ) -> Task<anyhow::Result<OpenResult>> {
 1817        let project_handle = Project::local(
 1818            app_state.client.clone(),
 1819            app_state.node_runtime.clone(),
 1820            app_state.user_store.clone(),
 1821            app_state.languages.clone(),
 1822            app_state.fs.clone(),
 1823            env,
 1824            Default::default(),
 1825            cx,
 1826        );
 1827
 1828        let db = WorkspaceDb::global(cx);
 1829        let kvp = db::kvp::KeyValueStore::global(cx);
 1830        cx.spawn(async move |cx| {
 1831            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1832            for path in abs_paths.into_iter() {
 1833                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1834                    paths_to_open.push(canonical)
 1835                } else {
 1836                    paths_to_open.push(path)
 1837                }
 1838            }
 1839
 1840            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1841
 1842            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1843                paths_to_open = paths.ordered_paths().cloned().collect();
 1844                if !paths.is_lexicographically_ordered() {
 1845                    project_handle.update(cx, |project, cx| {
 1846                        project.set_worktrees_reordered(true, cx);
 1847                    });
 1848                }
 1849            }
 1850
 1851            // Get project paths for all of the abs_paths
 1852            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1853                Vec::with_capacity(paths_to_open.len());
 1854
 1855            for path in paths_to_open.into_iter() {
 1856                if let Some((_, project_entry)) = cx
 1857                    .update(|cx| {
 1858                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1859                    })
 1860                    .await
 1861                    .log_err()
 1862                {
 1863                    project_paths.push((path, Some(project_entry)));
 1864                } else {
 1865                    project_paths.push((path, None));
 1866                }
 1867            }
 1868
 1869            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1870                serialized_workspace.id
 1871            } else {
 1872                db.next_id().await.unwrap_or_else(|_| Default::default())
 1873            };
 1874
 1875            let toolchains = db.toolchains(workspace_id).await?;
 1876
 1877            for (toolchain, worktree_path, path) in toolchains {
 1878                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1879                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1880                    this.find_worktree(&worktree_path, cx)
 1881                        .and_then(|(worktree, rel_path)| {
 1882                            if rel_path.is_empty() {
 1883                                Some(worktree.read(cx).id())
 1884                            } else {
 1885                                None
 1886                            }
 1887                        })
 1888                }) else {
 1889                    // We did not find a worktree with a given path, but that's whatever.
 1890                    continue;
 1891                };
 1892                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1893                    continue;
 1894                }
 1895
 1896                project_handle
 1897                    .update(cx, |this, cx| {
 1898                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1899                    })
 1900                    .await;
 1901            }
 1902            if let Some(workspace) = serialized_workspace.as_ref() {
 1903                project_handle.update(cx, |this, cx| {
 1904                    for (scope, toolchains) in &workspace.user_toolchains {
 1905                        for toolchain in toolchains {
 1906                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1907                        }
 1908                    }
 1909                });
 1910            }
 1911
 1912            let window_to_replace = match open_mode {
 1913                OpenMode::NewWindow => None,
 1914                _ => requesting_window,
 1915            };
 1916
 1917            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1918                if let Some(window) = window_to_replace {
 1919                    let centered_layout = serialized_workspace
 1920                        .as_ref()
 1921                        .map(|w| w.centered_layout)
 1922                        .unwrap_or(false);
 1923
 1924                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1925                        let workspace = cx.new(|cx| {
 1926                            let mut workspace = Workspace::new(
 1927                                Some(workspace_id),
 1928                                project_handle.clone(),
 1929                                app_state.clone(),
 1930                                window,
 1931                                cx,
 1932                            );
 1933
 1934                            workspace.centered_layout = centered_layout;
 1935
 1936                            // Call init callback to add items before window renders
 1937                            if let Some(init) = init {
 1938                                init(&mut workspace, window, cx);
 1939                            }
 1940
 1941                            workspace
 1942                        });
 1943                        match open_mode {
 1944                            OpenMode::Activate => {
 1945                                multi_workspace.activate(workspace.clone(), window, cx);
 1946                            }
 1947                            OpenMode::Add => {
 1948                                multi_workspace.add(workspace.clone(), &*window, cx);
 1949                            }
 1950                            OpenMode::NewWindow => {
 1951                                unreachable!()
 1952                            }
 1953                        }
 1954                        workspace
 1955                    })?;
 1956                    (window, workspace)
 1957                } else {
 1958                    let window_bounds_override = window_bounds_env_override();
 1959
 1960                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1961                        (Some(WindowBounds::Windowed(bounds)), None)
 1962                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1963                        && let Some(display) = workspace.display
 1964                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1965                    {
 1966                        // Reopening an existing workspace - restore its saved bounds
 1967                        (Some(bounds.0), Some(display))
 1968                    } else if let Some((display, bounds)) =
 1969                        persistence::read_default_window_bounds(&kvp)
 1970                    {
 1971                        // New or empty workspace - use the last known window bounds
 1972                        (Some(bounds), Some(display))
 1973                    } else {
 1974                        // New window - let GPUI's default_bounds() handle cascading
 1975                        (None, None)
 1976                    };
 1977
 1978                    // Use the serialized workspace to construct the new window
 1979                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1980                    options.window_bounds = window_bounds;
 1981                    let centered_layout = serialized_workspace
 1982                        .as_ref()
 1983                        .map(|w| w.centered_layout)
 1984                        .unwrap_or(false);
 1985                    let window = cx.open_window(options, {
 1986                        let app_state = app_state.clone();
 1987                        let project_handle = project_handle.clone();
 1988                        move |window, cx| {
 1989                            let workspace = cx.new(|cx| {
 1990                                let mut workspace = Workspace::new(
 1991                                    Some(workspace_id),
 1992                                    project_handle,
 1993                                    app_state,
 1994                                    window,
 1995                                    cx,
 1996                                );
 1997                                workspace.centered_layout = centered_layout;
 1998
 1999                                // Call init callback to add items before window renders
 2000                                if let Some(init) = init {
 2001                                    init(&mut workspace, window, cx);
 2002                                }
 2003
 2004                                workspace
 2005                            });
 2006                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 2007                        }
 2008                    })?;
 2009                    let workspace =
 2010                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 2011                            multi_workspace.workspace().clone()
 2012                        })?;
 2013                    (window, workspace)
 2014                };
 2015
 2016            notify_if_database_failed(window, cx);
 2017            // Check if this is an empty workspace (no paths to open)
 2018            // An empty workspace is one where project_paths is empty
 2019            let is_empty_workspace = project_paths.is_empty();
 2020            // Check if serialized workspace has paths before it's moved
 2021            let serialized_workspace_has_paths = serialized_workspace
 2022                .as_ref()
 2023                .map(|ws| !ws.paths.is_empty())
 2024                .unwrap_or(false);
 2025
 2026            let opened_items = window
 2027                .update(cx, |_, window, cx| {
 2028                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 2029                        open_items(serialized_workspace, project_paths, window, cx)
 2030                    })
 2031                })?
 2032                .await
 2033                .unwrap_or_default();
 2034
 2035            // Restore default dock state for empty workspaces
 2036            // Only restore if:
 2037            // 1. This is an empty workspace (no paths), AND
 2038            // 2. The serialized workspace either doesn't exist or has no paths
 2039            if is_empty_workspace && !serialized_workspace_has_paths {
 2040                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 2041                    window
 2042                        .update(cx, |_, window, cx| {
 2043                            workspace.update(cx, |workspace, cx| {
 2044                                for (dock, serialized_dock) in [
 2045                                    (&workspace.right_dock, &default_docks.right),
 2046                                    (&workspace.left_dock, &default_docks.left),
 2047                                    (&workspace.bottom_dock, &default_docks.bottom),
 2048                                ] {
 2049                                    dock.update(cx, |dock, cx| {
 2050                                        dock.serialized_dock = Some(serialized_dock.clone());
 2051                                        dock.restore_state(window, cx);
 2052                                    });
 2053                                }
 2054                                cx.notify();
 2055                            });
 2056                        })
 2057                        .log_err();
 2058                }
 2059            }
 2060
 2061            window
 2062                .update(cx, |_, _window, cx| {
 2063                    workspace.update(cx, |this: &mut Workspace, cx| {
 2064                        this.update_history(cx);
 2065                    });
 2066                })
 2067                .log_err();
 2068            Ok(OpenResult {
 2069                window,
 2070                workspace,
 2071                opened_items,
 2072            })
 2073        })
 2074    }
 2075
 2076    pub fn project_group_key(&self, cx: &App) -> ProjectGroupKey {
 2077        self.project.read(cx).project_group_key(cx)
 2078    }
 2079
 2080    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2081        self.weak_self.clone()
 2082    }
 2083
 2084    pub fn left_dock(&self) -> &Entity<Dock> {
 2085        &self.left_dock
 2086    }
 2087
 2088    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2089        &self.bottom_dock
 2090    }
 2091
 2092    pub fn set_bottom_dock_layout(
 2093        &mut self,
 2094        layout: BottomDockLayout,
 2095        window: &mut Window,
 2096        cx: &mut Context<Self>,
 2097    ) {
 2098        let fs = self.project().read(cx).fs();
 2099        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2100            content.workspace.bottom_dock_layout = Some(layout);
 2101        });
 2102
 2103        cx.notify();
 2104        self.serialize_workspace(window, cx);
 2105    }
 2106
 2107    pub fn right_dock(&self) -> &Entity<Dock> {
 2108        &self.right_dock
 2109    }
 2110
 2111    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2112        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2113    }
 2114
 2115    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2116        let left_dock = self.left_dock.read(cx);
 2117        let left_visible = left_dock.is_open();
 2118        let left_active_panel = left_dock
 2119            .active_panel()
 2120            .map(|panel| panel.persistent_name().to_string());
 2121        // `zoomed_position` is kept in sync with individual panel zoom state
 2122        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2123        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2124
 2125        let right_dock = self.right_dock.read(cx);
 2126        let right_visible = right_dock.is_open();
 2127        let right_active_panel = right_dock
 2128            .active_panel()
 2129            .map(|panel| panel.persistent_name().to_string());
 2130        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2131
 2132        let bottom_dock = self.bottom_dock.read(cx);
 2133        let bottom_visible = bottom_dock.is_open();
 2134        let bottom_active_panel = bottom_dock
 2135            .active_panel()
 2136            .map(|panel| panel.persistent_name().to_string());
 2137        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2138
 2139        DockStructure {
 2140            left: DockData {
 2141                visible: left_visible,
 2142                active_panel: left_active_panel,
 2143                zoom: left_dock_zoom,
 2144            },
 2145            right: DockData {
 2146                visible: right_visible,
 2147                active_panel: right_active_panel,
 2148                zoom: right_dock_zoom,
 2149            },
 2150            bottom: DockData {
 2151                visible: bottom_visible,
 2152                active_panel: bottom_active_panel,
 2153                zoom: bottom_dock_zoom,
 2154            },
 2155        }
 2156    }
 2157
 2158    pub fn set_dock_structure(
 2159        &self,
 2160        docks: DockStructure,
 2161        window: &mut Window,
 2162        cx: &mut Context<Self>,
 2163    ) {
 2164        for (dock, data) in [
 2165            (&self.left_dock, docks.left),
 2166            (&self.bottom_dock, docks.bottom),
 2167            (&self.right_dock, docks.right),
 2168        ] {
 2169            dock.update(cx, |dock, cx| {
 2170                dock.serialized_dock = Some(data);
 2171                dock.restore_state(window, cx);
 2172            });
 2173        }
 2174    }
 2175
 2176    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2177        self.items(cx)
 2178            .filter_map(|item| {
 2179                let project_path = item.project_path(cx)?;
 2180                self.project.read(cx).absolute_path(&project_path, cx)
 2181            })
 2182            .collect()
 2183    }
 2184
 2185    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2186        match position {
 2187            DockPosition::Left => &self.left_dock,
 2188            DockPosition::Bottom => &self.bottom_dock,
 2189            DockPosition::Right => &self.right_dock,
 2190        }
 2191    }
 2192
 2193    pub fn agent_panel_position(&self, cx: &App) -> Option<DockPosition> {
 2194        self.all_docks().into_iter().find_map(|dock| {
 2195            let dock = dock.read(cx);
 2196            dock.has_agent_panel(cx).then_some(dock.position())
 2197        })
 2198    }
 2199
 2200    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2201        self.all_docks().into_iter().find_map(|dock| {
 2202            let dock = dock.read(cx);
 2203            let panel = dock.panel::<T>()?;
 2204            dock.stored_panel_size_state(&panel)
 2205        })
 2206    }
 2207
 2208    pub fn persisted_panel_size_state(
 2209        &self,
 2210        panel_key: &'static str,
 2211        cx: &App,
 2212    ) -> Option<dock::PanelSizeState> {
 2213        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2214    }
 2215
 2216    pub fn persist_panel_size_state(
 2217        &self,
 2218        panel_key: &str,
 2219        size_state: dock::PanelSizeState,
 2220        cx: &mut App,
 2221    ) {
 2222        let Some(workspace_id) = self
 2223            .database_id()
 2224            .map(|id| i64::from(id).to_string())
 2225            .or(self.session_id())
 2226        else {
 2227            return;
 2228        };
 2229
 2230        let kvp = db::kvp::KeyValueStore::global(cx);
 2231        let panel_key = panel_key.to_string();
 2232        cx.background_spawn(async move {
 2233            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2234            scope
 2235                .write(
 2236                    format!("{workspace_id}:{panel_key}"),
 2237                    serde_json::to_string(&size_state)?,
 2238                )
 2239                .await
 2240        })
 2241        .detach_and_log_err(cx);
 2242    }
 2243
 2244    pub fn set_panel_size_state<T: Panel>(
 2245        &mut self,
 2246        size_state: dock::PanelSizeState,
 2247        window: &mut Window,
 2248        cx: &mut Context<Self>,
 2249    ) -> bool {
 2250        let Some(panel) = self.panel::<T>(cx) else {
 2251            return false;
 2252        };
 2253
 2254        let dock = self.dock_at_position(panel.position(window, cx));
 2255        let did_set = dock.update(cx, |dock, cx| {
 2256            dock.set_panel_size_state(&panel, size_state, cx)
 2257        });
 2258
 2259        if did_set {
 2260            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2261        }
 2262
 2263        did_set
 2264    }
 2265
 2266    pub fn toggle_dock_panel_flexible_size(
 2267        &self,
 2268        dock: &Entity<Dock>,
 2269        panel: &dyn PanelHandle,
 2270        window: &mut Window,
 2271        cx: &mut App,
 2272    ) {
 2273        let position = dock.read(cx).position();
 2274        let current_size = self.dock_size(&dock.read(cx), window, cx);
 2275        let current_flex =
 2276            current_size.and_then(|size| self.dock_flex_for_size(position, size, window, cx));
 2277        dock.update(cx, |dock, cx| {
 2278            dock.toggle_panel_flexible_size(panel, current_size, current_flex, window, cx);
 2279        });
 2280    }
 2281
 2282    fn dock_size(&self, dock: &Dock, window: &Window, cx: &App) -> Option<Pixels> {
 2283        let panel = dock.active_panel()?;
 2284        let size_state = dock
 2285            .stored_panel_size_state(panel.as_ref())
 2286            .unwrap_or_default();
 2287        let position = dock.position();
 2288
 2289        let use_flex = panel.has_flexible_size(window, cx);
 2290
 2291        if position.axis() == Axis::Horizontal
 2292            && use_flex
 2293            && let Some(flex) = size_state.flex.or_else(|| self.default_dock_flex(position))
 2294        {
 2295            let workspace_width = self.bounds.size.width;
 2296            if workspace_width <= Pixels::ZERO {
 2297                return None;
 2298            }
 2299            let flex = flex.max(0.001);
 2300            let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2301            if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2302                // Both docks are flex items sharing the full workspace width.
 2303                let total_flex = flex + 1.0 + opposite_flex;
 2304                return Some((flex / total_flex * workspace_width).max(RESIZE_HANDLE_SIZE));
 2305            } else {
 2306                // Opposite dock is fixed-width; flex items share (W - fixed).
 2307                let opposite_fixed = opposite
 2308                    .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2309                    .unwrap_or_default();
 2310                let available = (workspace_width - opposite_fixed).max(RESIZE_HANDLE_SIZE);
 2311                return Some((flex / (flex + 1.0) * available).max(RESIZE_HANDLE_SIZE));
 2312            }
 2313        }
 2314
 2315        Some(
 2316            size_state
 2317                .size
 2318                .unwrap_or_else(|| panel.default_size(window, cx)),
 2319        )
 2320    }
 2321
 2322    pub fn dock_flex_for_size(
 2323        &self,
 2324        position: DockPosition,
 2325        size: Pixels,
 2326        window: &Window,
 2327        cx: &App,
 2328    ) -> Option<f32> {
 2329        if position.axis() != Axis::Horizontal {
 2330            return None;
 2331        }
 2332
 2333        let workspace_width = self.bounds.size.width;
 2334        if workspace_width <= Pixels::ZERO {
 2335            return None;
 2336        }
 2337
 2338        let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2339        if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2340            let size = size.clamp(px(0.), workspace_width - px(1.));
 2341            Some((size * (1.0 + opposite_flex) / (workspace_width - size)).max(0.0))
 2342        } else {
 2343            let opposite_width = opposite
 2344                .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2345                .unwrap_or_default();
 2346            let available = (workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE);
 2347            let remaining = (available - size).max(px(1.));
 2348            Some((size / remaining).max(0.0))
 2349        }
 2350    }
 2351
 2352    fn opposite_dock_panel_and_size_state(
 2353        &self,
 2354        position: DockPosition,
 2355        window: &Window,
 2356        cx: &App,
 2357    ) -> Option<(Arc<dyn PanelHandle>, PanelSizeState)> {
 2358        let opposite_position = match position {
 2359            DockPosition::Left => DockPosition::Right,
 2360            DockPosition::Right => DockPosition::Left,
 2361            DockPosition::Bottom => return None,
 2362        };
 2363
 2364        let opposite_dock = self.dock_at_position(opposite_position).read(cx);
 2365        let panel = opposite_dock.visible_panel()?;
 2366        let mut size_state = opposite_dock
 2367            .stored_panel_size_state(panel.as_ref())
 2368            .unwrap_or_default();
 2369        if size_state.flex.is_none() && panel.has_flexible_size(window, cx) {
 2370            size_state.flex = self.default_dock_flex(opposite_position);
 2371        }
 2372        Some((panel.clone(), size_state))
 2373    }
 2374
 2375    pub fn default_dock_flex(&self, position: DockPosition) -> Option<f32> {
 2376        if position.axis() != Axis::Horizontal {
 2377            return None;
 2378        }
 2379
 2380        let pane = self.last_active_center_pane.clone()?.upgrade()?;
 2381        Some(self.center.width_fraction_for_pane(&pane).unwrap_or(1.0))
 2382    }
 2383
 2384    pub fn is_edited(&self) -> bool {
 2385        self.window_edited
 2386    }
 2387
 2388    pub fn add_panel<T: Panel>(
 2389        &mut self,
 2390        panel: Entity<T>,
 2391        window: &mut Window,
 2392        cx: &mut Context<Self>,
 2393    ) {
 2394        let focus_handle = panel.panel_focus_handle(cx);
 2395        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2396            .detach();
 2397
 2398        let dock_position = panel.position(window, cx);
 2399        let dock = self.dock_at_position(dock_position);
 2400        let any_panel = panel.to_any();
 2401        let persisted_size_state =
 2402            self.persisted_panel_size_state(T::panel_key(), cx)
 2403                .or_else(|| {
 2404                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2405                        let state = dock::PanelSizeState {
 2406                            size: Some(size),
 2407                            flex: None,
 2408                        };
 2409                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2410                        state
 2411                    })
 2412                });
 2413
 2414        dock.update(cx, |dock, cx| {
 2415            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2416            if let Some(size_state) = persisted_size_state {
 2417                dock.set_panel_size_state(&panel, size_state, cx);
 2418            }
 2419            index
 2420        });
 2421
 2422        cx.emit(Event::PanelAdded(any_panel));
 2423    }
 2424
 2425    pub fn remove_panel<T: Panel>(
 2426        &mut self,
 2427        panel: &Entity<T>,
 2428        window: &mut Window,
 2429        cx: &mut Context<Self>,
 2430    ) {
 2431        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2432            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2433        }
 2434    }
 2435
 2436    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2437        &self.status_bar
 2438    }
 2439
 2440    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2441        self.sidebar_focus_handle = handle;
 2442    }
 2443
 2444    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2445        StatusBarSettings::get_global(cx).show
 2446    }
 2447
 2448    pub fn multi_workspace(&self) -> Option<&WeakEntity<MultiWorkspace>> {
 2449        self.multi_workspace.as_ref()
 2450    }
 2451
 2452    pub fn set_multi_workspace(
 2453        &mut self,
 2454        multi_workspace: WeakEntity<MultiWorkspace>,
 2455        cx: &mut App,
 2456    ) {
 2457        self.status_bar.update(cx, |status_bar, cx| {
 2458            status_bar.set_multi_workspace(multi_workspace.clone(), cx);
 2459        });
 2460        self.multi_workspace = Some(multi_workspace);
 2461    }
 2462
 2463    pub fn app_state(&self) -> &Arc<AppState> {
 2464        &self.app_state
 2465    }
 2466
 2467    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2468        self._panels_task = Some(task);
 2469    }
 2470
 2471    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2472        self._panels_task.take()
 2473    }
 2474
 2475    pub fn user_store(&self) -> &Entity<UserStore> {
 2476        &self.app_state.user_store
 2477    }
 2478
 2479    pub fn project(&self) -> &Entity<Project> {
 2480        &self.project
 2481    }
 2482
 2483    pub fn path_style(&self, cx: &App) -> PathStyle {
 2484        self.project.read(cx).path_style(cx)
 2485    }
 2486
 2487    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2488        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2489
 2490        for pane_handle in &self.panes {
 2491            let pane = pane_handle.read(cx);
 2492
 2493            for entry in pane.activation_history() {
 2494                history.insert(
 2495                    entry.entity_id,
 2496                    history
 2497                        .get(&entry.entity_id)
 2498                        .cloned()
 2499                        .unwrap_or(0)
 2500                        .max(entry.timestamp),
 2501                );
 2502            }
 2503        }
 2504
 2505        history
 2506    }
 2507
 2508    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2509        let mut recent_item: Option<Entity<T>> = None;
 2510        let mut recent_timestamp = 0;
 2511        for pane_handle in &self.panes {
 2512            let pane = pane_handle.read(cx);
 2513            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2514                pane.items().map(|item| (item.item_id(), item)).collect();
 2515            for entry in pane.activation_history() {
 2516                if entry.timestamp > recent_timestamp
 2517                    && let Some(&item) = item_map.get(&entry.entity_id)
 2518                    && let Some(typed_item) = item.act_as::<T>(cx)
 2519                {
 2520                    recent_timestamp = entry.timestamp;
 2521                    recent_item = Some(typed_item);
 2522                }
 2523            }
 2524        }
 2525        recent_item
 2526    }
 2527
 2528    pub fn recent_navigation_history_iter(
 2529        &self,
 2530        cx: &App,
 2531    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2532        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2533        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2534
 2535        for pane in &self.panes {
 2536            let pane = pane.read(cx);
 2537
 2538            pane.nav_history()
 2539                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2540                    if let Some(fs_path) = &fs_path {
 2541                        abs_paths_opened
 2542                            .entry(fs_path.clone())
 2543                            .or_default()
 2544                            .insert(project_path.clone());
 2545                    }
 2546                    let timestamp = entry.timestamp;
 2547                    match history.entry(project_path) {
 2548                        hash_map::Entry::Occupied(mut entry) => {
 2549                            let (_, old_timestamp) = entry.get();
 2550                            if &timestamp > old_timestamp {
 2551                                entry.insert((fs_path, timestamp));
 2552                            }
 2553                        }
 2554                        hash_map::Entry::Vacant(entry) => {
 2555                            entry.insert((fs_path, timestamp));
 2556                        }
 2557                    }
 2558                });
 2559
 2560            if let Some(item) = pane.active_item()
 2561                && let Some(project_path) = item.project_path(cx)
 2562            {
 2563                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2564
 2565                if let Some(fs_path) = &fs_path {
 2566                    abs_paths_opened
 2567                        .entry(fs_path.clone())
 2568                        .or_default()
 2569                        .insert(project_path.clone());
 2570                }
 2571
 2572                history.insert(project_path, (fs_path, std::usize::MAX));
 2573            }
 2574        }
 2575
 2576        history
 2577            .into_iter()
 2578            .sorted_by_key(|(_, (_, order))| *order)
 2579            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2580            .rev()
 2581            .filter(move |(history_path, abs_path)| {
 2582                let latest_project_path_opened = abs_path
 2583                    .as_ref()
 2584                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2585                    .and_then(|project_paths| {
 2586                        project_paths
 2587                            .iter()
 2588                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2589                    });
 2590
 2591                latest_project_path_opened.is_none_or(|path| path == history_path)
 2592            })
 2593    }
 2594
 2595    pub fn recent_navigation_history(
 2596        &self,
 2597        limit: Option<usize>,
 2598        cx: &App,
 2599    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2600        self.recent_navigation_history_iter(cx)
 2601            .take(limit.unwrap_or(usize::MAX))
 2602            .collect()
 2603    }
 2604
 2605    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2606        for pane in &self.panes {
 2607            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2608        }
 2609    }
 2610
 2611    fn navigate_history(
 2612        &mut self,
 2613        pane: WeakEntity<Pane>,
 2614        mode: NavigationMode,
 2615        window: &mut Window,
 2616        cx: &mut Context<Workspace>,
 2617    ) -> Task<Result<()>> {
 2618        self.navigate_history_impl(
 2619            pane,
 2620            mode,
 2621            window,
 2622            &mut |history, cx| history.pop(mode, cx),
 2623            cx,
 2624        )
 2625    }
 2626
 2627    fn navigate_tag_history(
 2628        &mut self,
 2629        pane: WeakEntity<Pane>,
 2630        mode: TagNavigationMode,
 2631        window: &mut Window,
 2632        cx: &mut Context<Workspace>,
 2633    ) -> Task<Result<()>> {
 2634        self.navigate_history_impl(
 2635            pane,
 2636            NavigationMode::Normal,
 2637            window,
 2638            &mut |history, _cx| history.pop_tag(mode),
 2639            cx,
 2640        )
 2641    }
 2642
 2643    fn navigate_history_impl(
 2644        &mut self,
 2645        pane: WeakEntity<Pane>,
 2646        mode: NavigationMode,
 2647        window: &mut Window,
 2648        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2649        cx: &mut Context<Workspace>,
 2650    ) -> Task<Result<()>> {
 2651        let to_load = if let Some(pane) = pane.upgrade() {
 2652            pane.update(cx, |pane, cx| {
 2653                window.focus(&pane.focus_handle(cx), cx);
 2654                loop {
 2655                    // Retrieve the weak item handle from the history.
 2656                    let entry = cb(pane.nav_history_mut(), cx)?;
 2657
 2658                    // If the item is still present in this pane, then activate it.
 2659                    if let Some(index) = entry
 2660                        .item
 2661                        .upgrade()
 2662                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2663                    {
 2664                        let prev_active_item_index = pane.active_item_index();
 2665                        pane.nav_history_mut().set_mode(mode);
 2666                        pane.activate_item(index, true, true, window, cx);
 2667                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2668
 2669                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2670                        if let Some(data) = entry.data {
 2671                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2672                        }
 2673
 2674                        if navigated {
 2675                            break None;
 2676                        }
 2677                    } else {
 2678                        // If the item is no longer present in this pane, then retrieve its
 2679                        // path info in order to reopen it.
 2680                        break pane
 2681                            .nav_history()
 2682                            .path_for_item(entry.item.id())
 2683                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2684                    }
 2685                }
 2686            })
 2687        } else {
 2688            None
 2689        };
 2690
 2691        if let Some((project_path, abs_path, entry)) = to_load {
 2692            // If the item was no longer present, then load it again from its previous path, first try the local path
 2693            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2694
 2695            cx.spawn_in(window, async move  |workspace, cx| {
 2696                let open_by_project_path = open_by_project_path.await;
 2697                let mut navigated = false;
 2698                match open_by_project_path
 2699                    .with_context(|| format!("Navigating to {project_path:?}"))
 2700                {
 2701                    Ok((project_entry_id, build_item)) => {
 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
 2707                        pane.update_in(cx, |pane, window, cx| {
 2708                            let item = pane.open_item(
 2709                                project_entry_id,
 2710                                project_path,
 2711                                true,
 2712                                entry.is_preview,
 2713                                true,
 2714                                None,
 2715                                window, cx,
 2716                                build_item,
 2717                            );
 2718                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2719                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2720                            if let Some(data) = entry.data {
 2721                                navigated |= item.navigate(data, window, cx);
 2722                            }
 2723                        })?;
 2724                    }
 2725                    Err(open_by_project_path_e) => {
 2726                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2727                        // and its worktree is now dropped
 2728                        if let Some(abs_path) = abs_path {
 2729                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2730                                pane.nav_history_mut().set_mode(mode);
 2731                                pane.active_item().map(|p| p.item_id())
 2732                            })?;
 2733                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2734                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2735                            })?;
 2736                            match open_by_abs_path
 2737                                .await
 2738                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2739                            {
 2740                                Ok(item) => {
 2741                                    pane.update_in(cx, |pane, window, cx| {
 2742                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2743                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2744                                        if let Some(data) = entry.data {
 2745                                            navigated |= item.navigate(data, window, cx);
 2746                                        }
 2747                                    })?;
 2748                                }
 2749                                Err(open_by_abs_path_e) => {
 2750                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2751                                }
 2752                            }
 2753                        }
 2754                    }
 2755                }
 2756
 2757                if !navigated {
 2758                    workspace
 2759                        .update_in(cx, |workspace, window, cx| {
 2760                            Self::navigate_history(workspace, pane, mode, window, cx)
 2761                        })?
 2762                        .await?;
 2763                }
 2764
 2765                Ok(())
 2766            })
 2767        } else {
 2768            Task::ready(Ok(()))
 2769        }
 2770    }
 2771
 2772    pub fn go_back(
 2773        &mut self,
 2774        pane: WeakEntity<Pane>,
 2775        window: &mut Window,
 2776        cx: &mut Context<Workspace>,
 2777    ) -> Task<Result<()>> {
 2778        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2779    }
 2780
 2781    pub fn go_forward(
 2782        &mut self,
 2783        pane: WeakEntity<Pane>,
 2784        window: &mut Window,
 2785        cx: &mut Context<Workspace>,
 2786    ) -> Task<Result<()>> {
 2787        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2788    }
 2789
 2790    pub fn reopen_closed_item(
 2791        &mut self,
 2792        window: &mut Window,
 2793        cx: &mut Context<Workspace>,
 2794    ) -> Task<Result<()>> {
 2795        self.navigate_history(
 2796            self.active_pane().downgrade(),
 2797            NavigationMode::ReopeningClosedItem,
 2798            window,
 2799            cx,
 2800        )
 2801    }
 2802
 2803    pub fn client(&self) -> &Arc<Client> {
 2804        &self.app_state.client
 2805    }
 2806
 2807    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2808        self.titlebar_item = Some(item);
 2809        cx.notify();
 2810    }
 2811
 2812    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2813        self.on_prompt_for_new_path = Some(prompt)
 2814    }
 2815
 2816    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2817        self.on_prompt_for_open_path = Some(prompt)
 2818    }
 2819
 2820    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2821        self.terminal_provider = Some(Box::new(provider));
 2822    }
 2823
 2824    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2825        self.debugger_provider = Some(Arc::new(provider));
 2826    }
 2827
 2828    pub fn set_open_in_dev_container(&mut self, value: bool) {
 2829        self.open_in_dev_container = value;
 2830    }
 2831
 2832    pub fn open_in_dev_container(&self) -> bool {
 2833        self.open_in_dev_container
 2834    }
 2835
 2836    pub fn set_dev_container_task(&mut self, task: Task<Result<()>>) {
 2837        self._dev_container_task = Some(task);
 2838    }
 2839
 2840    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2841        self.debugger_provider.clone()
 2842    }
 2843
 2844    pub fn prompt_for_open_path(
 2845        &mut self,
 2846        path_prompt_options: PathPromptOptions,
 2847        lister: DirectoryLister,
 2848        window: &mut Window,
 2849        cx: &mut Context<Self>,
 2850    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2851        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2852            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2853            let rx = prompt(self, lister, window, cx);
 2854            self.on_prompt_for_open_path = Some(prompt);
 2855            rx
 2856        } else {
 2857            let (tx, rx) = oneshot::channel();
 2858            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2859
 2860            cx.spawn_in(window, async move |workspace, cx| {
 2861                let Ok(result) = abs_path.await else {
 2862                    return Ok(());
 2863                };
 2864
 2865                match result {
 2866                    Ok(result) => {
 2867                        tx.send(result).ok();
 2868                    }
 2869                    Err(err) => {
 2870                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2871                            workspace.show_portal_error(err.to_string(), cx);
 2872                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2873                            let rx = prompt(workspace, lister, window, cx);
 2874                            workspace.on_prompt_for_open_path = Some(prompt);
 2875                            rx
 2876                        })?;
 2877                        if let Ok(path) = rx.await {
 2878                            tx.send(path).ok();
 2879                        }
 2880                    }
 2881                };
 2882                anyhow::Ok(())
 2883            })
 2884            .detach();
 2885
 2886            rx
 2887        }
 2888    }
 2889
 2890    pub fn prompt_for_new_path(
 2891        &mut self,
 2892        lister: DirectoryLister,
 2893        suggested_name: Option<String>,
 2894        window: &mut Window,
 2895        cx: &mut Context<Self>,
 2896    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2897        if self.project.read(cx).is_via_collab()
 2898            || self.project.read(cx).is_via_remote_server()
 2899            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2900        {
 2901            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2902            let rx = prompt(self, lister, suggested_name, window, cx);
 2903            self.on_prompt_for_new_path = Some(prompt);
 2904            return rx;
 2905        }
 2906
 2907        let (tx, rx) = oneshot::channel();
 2908        cx.spawn_in(window, async move |workspace, cx| {
 2909            let abs_path = workspace.update(cx, |workspace, cx| {
 2910                let relative_to = workspace
 2911                    .most_recent_active_path(cx)
 2912                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2913                    .or_else(|| {
 2914                        let project = workspace.project.read(cx);
 2915                        project.visible_worktrees(cx).find_map(|worktree| {
 2916                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2917                        })
 2918                    })
 2919                    .or_else(std::env::home_dir)
 2920                    .unwrap_or_else(|| PathBuf::from(""));
 2921                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2922            })?;
 2923            let abs_path = match abs_path.await? {
 2924                Ok(path) => path,
 2925                Err(err) => {
 2926                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2927                        workspace.show_portal_error(err.to_string(), cx);
 2928
 2929                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2930                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2931                        workspace.on_prompt_for_new_path = Some(prompt);
 2932                        rx
 2933                    })?;
 2934                    if let Ok(path) = rx.await {
 2935                        tx.send(path).ok();
 2936                    }
 2937                    return anyhow::Ok(());
 2938                }
 2939            };
 2940
 2941            tx.send(abs_path.map(|path| vec![path])).ok();
 2942            anyhow::Ok(())
 2943        })
 2944        .detach();
 2945
 2946        rx
 2947    }
 2948
 2949    pub fn titlebar_item(&self) -> Option<AnyView> {
 2950        self.titlebar_item.clone()
 2951    }
 2952
 2953    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2954    /// When set, git-related operations should use this worktree instead of deriving
 2955    /// the active worktree from the focused file.
 2956    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2957        self.active_worktree_override
 2958    }
 2959
 2960    pub fn set_active_worktree_override(
 2961        &mut self,
 2962        worktree_id: Option<WorktreeId>,
 2963        cx: &mut Context<Self>,
 2964    ) {
 2965        self.active_worktree_override = worktree_id;
 2966        cx.notify();
 2967    }
 2968
 2969    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2970        self.active_worktree_override = None;
 2971        cx.notify();
 2972    }
 2973
 2974    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2975    ///
 2976    /// If the given workspace has a local project, then it will be passed
 2977    /// to the callback. Otherwise, a new empty window will be created.
 2978    pub fn with_local_workspace<T, F>(
 2979        &mut self,
 2980        window: &mut Window,
 2981        cx: &mut Context<Self>,
 2982        callback: F,
 2983    ) -> Task<Result<T>>
 2984    where
 2985        T: 'static,
 2986        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2987    {
 2988        if self.project.read(cx).is_local() {
 2989            Task::ready(Ok(callback(self, window, cx)))
 2990        } else {
 2991            let env = self.project.read(cx).cli_environment(cx);
 2992            let task = Self::new_local(
 2993                Vec::new(),
 2994                self.app_state.clone(),
 2995                None,
 2996                env,
 2997                None,
 2998                OpenMode::Activate,
 2999                cx,
 3000            );
 3001            cx.spawn_in(window, async move |_vh, cx| {
 3002                let OpenResult {
 3003                    window: multi_workspace_window,
 3004                    ..
 3005                } = task.await?;
 3006                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3007                    let workspace = multi_workspace.workspace().clone();
 3008                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3009                })
 3010            })
 3011        }
 3012    }
 3013
 3014    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 3015    ///
 3016    /// If the given workspace has a local project, then it will be passed
 3017    /// to the callback. Otherwise, a new empty window will be created.
 3018    pub fn with_local_or_wsl_workspace<T, F>(
 3019        &mut self,
 3020        window: &mut Window,
 3021        cx: &mut Context<Self>,
 3022        callback: F,
 3023    ) -> Task<Result<T>>
 3024    where
 3025        T: 'static,
 3026        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 3027    {
 3028        let project = self.project.read(cx);
 3029        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 3030            Task::ready(Ok(callback(self, window, cx)))
 3031        } else {
 3032            let env = self.project.read(cx).cli_environment(cx);
 3033            let task = Self::new_local(
 3034                Vec::new(),
 3035                self.app_state.clone(),
 3036                None,
 3037                env,
 3038                None,
 3039                OpenMode::Activate,
 3040                cx,
 3041            );
 3042            cx.spawn_in(window, async move |_vh, cx| {
 3043                let OpenResult {
 3044                    window: multi_workspace_window,
 3045                    ..
 3046                } = task.await?;
 3047                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3048                    let workspace = multi_workspace.workspace().clone();
 3049                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3050                })
 3051            })
 3052        }
 3053    }
 3054
 3055    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3056        self.project.read(cx).worktrees(cx)
 3057    }
 3058
 3059    pub fn visible_worktrees<'a>(
 3060        &self,
 3061        cx: &'a App,
 3062    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3063        self.project.read(cx).visible_worktrees(cx)
 3064    }
 3065
 3066    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 3067        let futures = self
 3068            .worktrees(cx)
 3069            .filter_map(|worktree| worktree.read(cx).as_local())
 3070            .map(|worktree| worktree.scan_complete())
 3071            .collect::<Vec<_>>();
 3072        async move {
 3073            for future in futures {
 3074                future.await;
 3075            }
 3076        }
 3077    }
 3078
 3079    pub fn close_global(cx: &mut App) {
 3080        cx.defer(|cx| {
 3081            cx.windows().iter().find(|window| {
 3082                window
 3083                    .update(cx, |_, window, _| {
 3084                        if window.is_window_active() {
 3085                            //This can only get called when the window's project connection has been lost
 3086                            //so we don't need to prompt the user for anything and instead just close the window
 3087                            window.remove_window();
 3088                            true
 3089                        } else {
 3090                            false
 3091                        }
 3092                    })
 3093                    .unwrap_or(false)
 3094            });
 3095        });
 3096    }
 3097
 3098    pub fn move_focused_panel_to_next_position(
 3099        &mut self,
 3100        _: &MoveFocusedPanelToNextPosition,
 3101        window: &mut Window,
 3102        cx: &mut Context<Self>,
 3103    ) {
 3104        let docks = self.all_docks();
 3105        let active_dock = docks
 3106            .into_iter()
 3107            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3108
 3109        if let Some(dock) = active_dock {
 3110            dock.update(cx, |dock, cx| {
 3111                let active_panel = dock
 3112                    .active_panel()
 3113                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 3114
 3115                if let Some(panel) = active_panel {
 3116                    panel.move_to_next_position(window, cx);
 3117                }
 3118            })
 3119        }
 3120    }
 3121
 3122    pub fn prepare_to_close(
 3123        &mut self,
 3124        close_intent: CloseIntent,
 3125        window: &mut Window,
 3126        cx: &mut Context<Self>,
 3127    ) -> Task<Result<bool>> {
 3128        let active_call = self.active_global_call();
 3129
 3130        cx.spawn_in(window, async move |this, cx| {
 3131            this.update(cx, |this, _| {
 3132                if close_intent == CloseIntent::CloseWindow {
 3133                    this.removing = true;
 3134                }
 3135            })?;
 3136
 3137            let workspace_count = cx.update(|_window, cx| {
 3138                cx.windows()
 3139                    .iter()
 3140                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3141                    .count()
 3142            })?;
 3143
 3144            #[cfg(target_os = "macos")]
 3145            let save_last_workspace = false;
 3146
 3147            // On Linux and Windows, closing the last window should restore the last workspace.
 3148            #[cfg(not(target_os = "macos"))]
 3149            let save_last_workspace = {
 3150                let remaining_workspaces = cx.update(|_window, cx| {
 3151                    cx.windows()
 3152                        .iter()
 3153                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3154                        .filter_map(|multi_workspace| {
 3155                            multi_workspace
 3156                                .update(cx, |multi_workspace, _, cx| {
 3157                                    multi_workspace.workspace().read(cx).removing
 3158                                })
 3159                                .ok()
 3160                        })
 3161                        .filter(|removing| !removing)
 3162                        .count()
 3163                })?;
 3164
 3165                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3166            };
 3167
 3168            if let Some(active_call) = active_call
 3169                && workspace_count == 1
 3170                && cx
 3171                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3172                    .unwrap_or(false)
 3173            {
 3174                if close_intent == CloseIntent::CloseWindow {
 3175                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3176                    let answer = cx.update(|window, cx| {
 3177                        window.prompt(
 3178                            PromptLevel::Warning,
 3179                            "Do you want to leave the current call?",
 3180                            None,
 3181                            &["Close window and hang up", "Cancel"],
 3182                            cx,
 3183                        )
 3184                    })?;
 3185
 3186                    if answer.await.log_err() == Some(1) {
 3187                        return anyhow::Ok(false);
 3188                    } else {
 3189                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3190                            task.await.log_err();
 3191                        }
 3192                    }
 3193                }
 3194                if close_intent == CloseIntent::ReplaceWindow {
 3195                    _ = cx.update(|_window, cx| {
 3196                        let multi_workspace = cx
 3197                            .windows()
 3198                            .iter()
 3199                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3200                            .next()
 3201                            .unwrap();
 3202                        let project = multi_workspace
 3203                            .read(cx)?
 3204                            .workspace()
 3205                            .read(cx)
 3206                            .project
 3207                            .clone();
 3208                        if project.read(cx).is_shared() {
 3209                            active_call.0.unshare_project(project, cx)?;
 3210                        }
 3211                        Ok::<_, anyhow::Error>(())
 3212                    });
 3213                }
 3214            }
 3215
 3216            let save_result = this
 3217                .update_in(cx, |this, window, cx| {
 3218                    this.save_all_internal(SaveIntent::Close, window, cx)
 3219                })?
 3220                .await;
 3221
 3222            // If we're not quitting, but closing, we remove the workspace from
 3223            // the current session.
 3224            if close_intent != CloseIntent::Quit
 3225                && !save_last_workspace
 3226                && save_result.as_ref().is_ok_and(|&res| res)
 3227            {
 3228                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3229                    .await;
 3230            }
 3231
 3232            save_result
 3233        })
 3234    }
 3235
 3236    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3237        self.save_all_internal(
 3238            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3239            window,
 3240            cx,
 3241        )
 3242        .detach_and_log_err(cx);
 3243    }
 3244
 3245    fn send_keystrokes(
 3246        &mut self,
 3247        action: &SendKeystrokes,
 3248        window: &mut Window,
 3249        cx: &mut Context<Self>,
 3250    ) {
 3251        let keystrokes: Vec<Keystroke> = action
 3252            .0
 3253            .split(' ')
 3254            .flat_map(|k| Keystroke::parse(k).log_err())
 3255            .map(|k| {
 3256                cx.keyboard_mapper()
 3257                    .map_key_equivalent(k, false)
 3258                    .inner()
 3259                    .clone()
 3260            })
 3261            .collect();
 3262        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3263    }
 3264
 3265    pub fn send_keystrokes_impl(
 3266        &mut self,
 3267        keystrokes: Vec<Keystroke>,
 3268        window: &mut Window,
 3269        cx: &mut Context<Self>,
 3270    ) -> Shared<Task<()>> {
 3271        let mut state = self.dispatching_keystrokes.borrow_mut();
 3272        if !state.dispatched.insert(keystrokes.clone()) {
 3273            cx.propagate();
 3274            return state.task.clone().unwrap();
 3275        }
 3276
 3277        state.queue.extend(keystrokes);
 3278
 3279        let keystrokes = self.dispatching_keystrokes.clone();
 3280        if state.task.is_none() {
 3281            state.task = Some(
 3282                window
 3283                    .spawn(cx, async move |cx| {
 3284                        // limit to 100 keystrokes to avoid infinite recursion.
 3285                        for _ in 0..100 {
 3286                            let keystroke = {
 3287                                let mut state = keystrokes.borrow_mut();
 3288                                let Some(keystroke) = state.queue.pop_front() else {
 3289                                    state.dispatched.clear();
 3290                                    state.task.take();
 3291                                    return;
 3292                                };
 3293                                keystroke
 3294                            };
 3295                            cx.update(|window, cx| {
 3296                                let focused = window.focused(cx);
 3297                                window.dispatch_keystroke(keystroke.clone(), cx);
 3298                                if window.focused(cx) != focused {
 3299                                    // dispatch_keystroke may cause the focus to change.
 3300                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3301                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3302                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3303                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3304                                    // )
 3305                                    window.draw(cx).clear();
 3306                                }
 3307                            })
 3308                            .ok();
 3309
 3310                            // Yield between synthetic keystrokes so deferred focus and
 3311                            // other effects can settle before dispatching the next key.
 3312                            yield_now().await;
 3313                        }
 3314
 3315                        *keystrokes.borrow_mut() = Default::default();
 3316                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3317                    })
 3318                    .shared(),
 3319            );
 3320        }
 3321        state.task.clone().unwrap()
 3322    }
 3323
 3324    /// Prompts the user to save or discard each dirty item, returning
 3325    /// `true` if they confirmed (saved/discarded everything) or `false`
 3326    /// if they cancelled. Used before removing worktree roots during
 3327    /// thread archival.
 3328    pub fn prompt_to_save_or_discard_dirty_items(
 3329        &mut self,
 3330        window: &mut Window,
 3331        cx: &mut Context<Self>,
 3332    ) -> Task<Result<bool>> {
 3333        self.save_all_internal(SaveIntent::Close, window, cx)
 3334    }
 3335
 3336    fn save_all_internal(
 3337        &mut self,
 3338        mut save_intent: SaveIntent,
 3339        window: &mut Window,
 3340        cx: &mut Context<Self>,
 3341    ) -> Task<Result<bool>> {
 3342        if self.project.read(cx).is_disconnected(cx) {
 3343            return Task::ready(Ok(true));
 3344        }
 3345        let dirty_items = self
 3346            .panes
 3347            .iter()
 3348            .flat_map(|pane| {
 3349                pane.read(cx).items().filter_map(|item| {
 3350                    if item.is_dirty(cx) {
 3351                        item.tab_content_text(0, cx);
 3352                        Some((pane.downgrade(), item.boxed_clone()))
 3353                    } else {
 3354                        None
 3355                    }
 3356                })
 3357            })
 3358            .collect::<Vec<_>>();
 3359
 3360        let project = self.project.clone();
 3361        cx.spawn_in(window, async move |workspace, cx| {
 3362            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3363                let (serialize_tasks, remaining_dirty_items) =
 3364                    workspace.update_in(cx, |workspace, window, cx| {
 3365                        let mut remaining_dirty_items = Vec::new();
 3366                        let mut serialize_tasks = Vec::new();
 3367                        for (pane, item) in dirty_items {
 3368                            if let Some(task) = item
 3369                                .to_serializable_item_handle(cx)
 3370                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3371                            {
 3372                                serialize_tasks.push(task);
 3373                            } else {
 3374                                remaining_dirty_items.push((pane, item));
 3375                            }
 3376                        }
 3377                        (serialize_tasks, remaining_dirty_items)
 3378                    })?;
 3379
 3380                futures::future::try_join_all(serialize_tasks).await?;
 3381
 3382                if !remaining_dirty_items.is_empty() {
 3383                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3384                }
 3385
 3386                if remaining_dirty_items.len() > 1 {
 3387                    let answer = workspace.update_in(cx, |_, window, cx| {
 3388                        let detail = Pane::file_names_for_prompt(
 3389                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3390                            cx,
 3391                        );
 3392                        window.prompt(
 3393                            PromptLevel::Warning,
 3394                            "Do you want to save all changes in the following files?",
 3395                            Some(&detail),
 3396                            &["Save all", "Discard all", "Cancel"],
 3397                            cx,
 3398                        )
 3399                    })?;
 3400                    match answer.await.log_err() {
 3401                        Some(0) => save_intent = SaveIntent::SaveAll,
 3402                        Some(1) => save_intent = SaveIntent::Skip,
 3403                        Some(2) => return Ok(false),
 3404                        _ => {}
 3405                    }
 3406                }
 3407
 3408                remaining_dirty_items
 3409            } else {
 3410                dirty_items
 3411            };
 3412
 3413            for (pane, item) in dirty_items {
 3414                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3415                    (
 3416                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3417                        item.project_entry_ids(cx),
 3418                    )
 3419                })?;
 3420                if (singleton || !project_entry_ids.is_empty())
 3421                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3422                {
 3423                    return Ok(false);
 3424                }
 3425            }
 3426            Ok(true)
 3427        })
 3428    }
 3429
 3430    pub fn open_workspace_for_paths(
 3431        &mut self,
 3432        // replace_current_window: bool,
 3433        mut open_mode: OpenMode,
 3434        paths: Vec<PathBuf>,
 3435        window: &mut Window,
 3436        cx: &mut Context<Self>,
 3437    ) -> Task<Result<Entity<Workspace>>> {
 3438        let requesting_window = window.window_handle().downcast::<MultiWorkspace>();
 3439        let is_remote = self.project.read(cx).is_via_collab();
 3440        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3441        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3442
 3443        let workspace_is_empty = !is_remote && !has_worktree && !has_dirty_items;
 3444        if workspace_is_empty {
 3445            open_mode = OpenMode::Activate;
 3446        }
 3447
 3448        let app_state = self.app_state.clone();
 3449
 3450        cx.spawn(async move |_, cx| {
 3451            let OpenResult { workspace, .. } = cx
 3452                .update(|cx| {
 3453                    open_paths(
 3454                        &paths,
 3455                        app_state,
 3456                        OpenOptions {
 3457                            requesting_window,
 3458                            open_mode,
 3459                            ..Default::default()
 3460                        },
 3461                        cx,
 3462                    )
 3463                })
 3464                .await?;
 3465            Ok(workspace)
 3466        })
 3467    }
 3468
 3469    #[allow(clippy::type_complexity)]
 3470    pub fn open_paths(
 3471        &mut self,
 3472        mut abs_paths: Vec<PathBuf>,
 3473        options: OpenOptions,
 3474        pane: Option<WeakEntity<Pane>>,
 3475        window: &mut Window,
 3476        cx: &mut Context<Self>,
 3477    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3478        let fs = self.app_state.fs.clone();
 3479
 3480        let caller_ordered_abs_paths = abs_paths.clone();
 3481
 3482        // Sort the paths to ensure we add worktrees for parents before their children.
 3483        abs_paths.sort_unstable();
 3484        cx.spawn_in(window, async move |this, cx| {
 3485            let mut tasks = Vec::with_capacity(abs_paths.len());
 3486
 3487            for abs_path in &abs_paths {
 3488                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3489                    OpenVisible::All => Some(true),
 3490                    OpenVisible::None => Some(false),
 3491                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3492                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3493                        Some(None) => Some(true),
 3494                        None => None,
 3495                    },
 3496                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3497                        Some(Some(metadata)) => Some(metadata.is_dir),
 3498                        Some(None) => Some(false),
 3499                        None => None,
 3500                    },
 3501                };
 3502                let project_path = match visible {
 3503                    Some(visible) => match this
 3504                        .update(cx, |this, cx| {
 3505                            Workspace::project_path_for_path(
 3506                                this.project.clone(),
 3507                                abs_path,
 3508                                visible,
 3509                                cx,
 3510                            )
 3511                        })
 3512                        .log_err()
 3513                    {
 3514                        Some(project_path) => project_path.await.log_err(),
 3515                        None => None,
 3516                    },
 3517                    None => None,
 3518                };
 3519
 3520                let this = this.clone();
 3521                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3522                let fs = fs.clone();
 3523                let pane = pane.clone();
 3524                let task = cx.spawn(async move |cx| {
 3525                    let (_worktree, project_path) = project_path?;
 3526                    if fs.is_dir(&abs_path).await {
 3527                        // Opening a directory should not race to update the active entry.
 3528                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3529                        None
 3530                    } else {
 3531                        Some(
 3532                            this.update_in(cx, |this, window, cx| {
 3533                                this.open_path(
 3534                                    project_path,
 3535                                    pane,
 3536                                    options.focus.unwrap_or(true),
 3537                                    window,
 3538                                    cx,
 3539                                )
 3540                            })
 3541                            .ok()?
 3542                            .await,
 3543                        )
 3544                    }
 3545                });
 3546                tasks.push(task);
 3547            }
 3548
 3549            let results = futures::future::join_all(tasks).await;
 3550
 3551            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3552            let mut winner: Option<(PathBuf, bool)> = None;
 3553            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3554                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3555                    if !metadata.is_dir {
 3556                        winner = Some((abs_path, false));
 3557                        break;
 3558                    }
 3559                    if winner.is_none() {
 3560                        winner = Some((abs_path, true));
 3561                    }
 3562                } else if winner.is_none() {
 3563                    winner = Some((abs_path, false));
 3564                }
 3565            }
 3566
 3567            // Compute the winner entry id on the foreground thread and emit once, after all
 3568            // paths finish opening. This avoids races between concurrently-opening paths
 3569            // (directories in particular) and makes the resulting project panel selection
 3570            // deterministic.
 3571            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3572                'emit_winner: {
 3573                    let winner_abs_path: Arc<Path> =
 3574                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3575
 3576                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3577                        OpenVisible::All => true,
 3578                        OpenVisible::None => false,
 3579                        OpenVisible::OnlyFiles => !winner_is_dir,
 3580                        OpenVisible::OnlyDirectories => winner_is_dir,
 3581                    };
 3582
 3583                    let Some(worktree_task) = this
 3584                        .update(cx, |workspace, cx| {
 3585                            workspace.project.update(cx, |project, cx| {
 3586                                project.find_or_create_worktree(
 3587                                    winner_abs_path.as_ref(),
 3588                                    visible,
 3589                                    cx,
 3590                                )
 3591                            })
 3592                        })
 3593                        .ok()
 3594                    else {
 3595                        break 'emit_winner;
 3596                    };
 3597
 3598                    let Ok((worktree, _)) = worktree_task.await else {
 3599                        break 'emit_winner;
 3600                    };
 3601
 3602                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3603                        let worktree = worktree.read(cx);
 3604                        let worktree_abs_path = worktree.abs_path();
 3605                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3606                            worktree.root_entry()
 3607                        } else {
 3608                            winner_abs_path
 3609                                .strip_prefix(worktree_abs_path.as_ref())
 3610                                .ok()
 3611                                .and_then(|relative_path| {
 3612                                    let relative_path =
 3613                                        RelPath::new(relative_path, PathStyle::local())
 3614                                            .log_err()?;
 3615                                    worktree.entry_for_path(&relative_path)
 3616                                })
 3617                        }?;
 3618                        Some(entry.id)
 3619                    }) else {
 3620                        break 'emit_winner;
 3621                    };
 3622
 3623                    this.update(cx, |workspace, cx| {
 3624                        workspace.project.update(cx, |_, cx| {
 3625                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3626                        });
 3627                    })
 3628                    .ok();
 3629                }
 3630            }
 3631
 3632            results
 3633        })
 3634    }
 3635
 3636    pub fn open_resolved_path(
 3637        &mut self,
 3638        path: ResolvedPath,
 3639        window: &mut Window,
 3640        cx: &mut Context<Self>,
 3641    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3642        match path {
 3643            ResolvedPath::ProjectPath { project_path, .. } => {
 3644                self.open_path(project_path, None, true, window, cx)
 3645            }
 3646            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3647                PathBuf::from(path),
 3648                OpenOptions {
 3649                    visible: Some(OpenVisible::None),
 3650                    ..Default::default()
 3651                },
 3652                window,
 3653                cx,
 3654            ),
 3655        }
 3656    }
 3657
 3658    pub fn absolute_path_of_worktree(
 3659        &self,
 3660        worktree_id: WorktreeId,
 3661        cx: &mut Context<Self>,
 3662    ) -> Option<PathBuf> {
 3663        self.project
 3664            .read(cx)
 3665            .worktree_for_id(worktree_id, cx)
 3666            // TODO: use `abs_path` or `root_dir`
 3667            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3668    }
 3669
 3670    pub fn add_folder_to_project(
 3671        &mut self,
 3672        _: &AddFolderToProject,
 3673        window: &mut Window,
 3674        cx: &mut Context<Self>,
 3675    ) {
 3676        let project = self.project.read(cx);
 3677        if project.is_via_collab() {
 3678            self.show_error(
 3679                &anyhow!("You cannot add folders to someone else's project"),
 3680                cx,
 3681            );
 3682            return;
 3683        }
 3684        let paths = self.prompt_for_open_path(
 3685            PathPromptOptions {
 3686                files: false,
 3687                directories: true,
 3688                multiple: true,
 3689                prompt: None,
 3690            },
 3691            DirectoryLister::Project(self.project.clone()),
 3692            window,
 3693            cx,
 3694        );
 3695        cx.spawn_in(window, async move |this, cx| {
 3696            if let Some(paths) = paths.await.log_err().flatten() {
 3697                let results = this
 3698                    .update_in(cx, |this, window, cx| {
 3699                        this.open_paths(
 3700                            paths,
 3701                            OpenOptions {
 3702                                visible: Some(OpenVisible::All),
 3703                                ..Default::default()
 3704                            },
 3705                            None,
 3706                            window,
 3707                            cx,
 3708                        )
 3709                    })?
 3710                    .await;
 3711                for result in results.into_iter().flatten() {
 3712                    result.log_err();
 3713                }
 3714            }
 3715            anyhow::Ok(())
 3716        })
 3717        .detach_and_log_err(cx);
 3718    }
 3719
 3720    pub fn project_path_for_path(
 3721        project: Entity<Project>,
 3722        abs_path: &Path,
 3723        visible: bool,
 3724        cx: &mut App,
 3725    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3726        let entry = project.update(cx, |project, cx| {
 3727            project.find_or_create_worktree(abs_path, visible, cx)
 3728        });
 3729        cx.spawn(async move |cx| {
 3730            let (worktree, path) = entry.await?;
 3731            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3732            Ok((worktree, ProjectPath { worktree_id, path }))
 3733        })
 3734    }
 3735
 3736    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3737        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3738    }
 3739
 3740    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3741        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3742    }
 3743
 3744    pub fn items_of_type<'a, T: Item>(
 3745        &'a self,
 3746        cx: &'a App,
 3747    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3748        self.panes
 3749            .iter()
 3750            .flat_map(|pane| pane.read(cx).items_of_type())
 3751    }
 3752
 3753    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3754        self.active_pane().read(cx).active_item()
 3755    }
 3756
 3757    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3758        let item = self.active_item(cx)?;
 3759        item.to_any_view().downcast::<I>().ok()
 3760    }
 3761
 3762    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3763        self.active_item(cx).and_then(|item| item.project_path(cx))
 3764    }
 3765
 3766    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3767        self.recent_navigation_history_iter(cx)
 3768            .filter_map(|(path, abs_path)| {
 3769                let worktree = self
 3770                    .project
 3771                    .read(cx)
 3772                    .worktree_for_id(path.worktree_id, cx)?;
 3773                if worktree.read(cx).is_visible() {
 3774                    abs_path
 3775                } else {
 3776                    None
 3777                }
 3778            })
 3779            .next()
 3780    }
 3781
 3782    pub fn save_active_item(
 3783        &mut self,
 3784        save_intent: SaveIntent,
 3785        window: &mut Window,
 3786        cx: &mut App,
 3787    ) -> Task<Result<()>> {
 3788        let project = self.project.clone();
 3789        let pane = self.active_pane();
 3790        let item = pane.read(cx).active_item();
 3791        let pane = pane.downgrade();
 3792
 3793        window.spawn(cx, async move |cx| {
 3794            if let Some(item) = item {
 3795                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3796                    .await
 3797                    .map(|_| ())
 3798            } else {
 3799                Ok(())
 3800            }
 3801        })
 3802    }
 3803
 3804    pub fn close_inactive_items_and_panes(
 3805        &mut self,
 3806        action: &CloseInactiveTabsAndPanes,
 3807        window: &mut Window,
 3808        cx: &mut Context<Self>,
 3809    ) {
 3810        if let Some(task) = self.close_all_internal(
 3811            true,
 3812            action.save_intent.unwrap_or(SaveIntent::Close),
 3813            window,
 3814            cx,
 3815        ) {
 3816            task.detach_and_log_err(cx)
 3817        }
 3818    }
 3819
 3820    pub fn close_all_items_and_panes(
 3821        &mut self,
 3822        action: &CloseAllItemsAndPanes,
 3823        window: &mut Window,
 3824        cx: &mut Context<Self>,
 3825    ) {
 3826        if let Some(task) = self.close_all_internal(
 3827            false,
 3828            action.save_intent.unwrap_or(SaveIntent::Close),
 3829            window,
 3830            cx,
 3831        ) {
 3832            task.detach_and_log_err(cx)
 3833        }
 3834    }
 3835
 3836    /// Closes the active item across all panes.
 3837    pub fn close_item_in_all_panes(
 3838        &mut self,
 3839        action: &CloseItemInAllPanes,
 3840        window: &mut Window,
 3841        cx: &mut Context<Self>,
 3842    ) {
 3843        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3844            return;
 3845        };
 3846
 3847        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3848        let close_pinned = action.close_pinned;
 3849
 3850        if let Some(project_path) = active_item.project_path(cx) {
 3851            self.close_items_with_project_path(
 3852                &project_path,
 3853                save_intent,
 3854                close_pinned,
 3855                window,
 3856                cx,
 3857            );
 3858        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3859            let item_id = active_item.item_id();
 3860            self.active_pane().update(cx, |pane, cx| {
 3861                pane.close_item_by_id(item_id, save_intent, window, cx)
 3862                    .detach_and_log_err(cx);
 3863            });
 3864        }
 3865    }
 3866
 3867    /// Closes all items with the given project path across all panes.
 3868    pub fn close_items_with_project_path(
 3869        &mut self,
 3870        project_path: &ProjectPath,
 3871        save_intent: SaveIntent,
 3872        close_pinned: bool,
 3873        window: &mut Window,
 3874        cx: &mut Context<Self>,
 3875    ) {
 3876        let panes = self.panes().to_vec();
 3877        for pane in panes {
 3878            pane.update(cx, |pane, cx| {
 3879                pane.close_items_for_project_path(
 3880                    project_path,
 3881                    save_intent,
 3882                    close_pinned,
 3883                    window,
 3884                    cx,
 3885                )
 3886                .detach_and_log_err(cx);
 3887            });
 3888        }
 3889    }
 3890
 3891    fn close_all_internal(
 3892        &mut self,
 3893        retain_active_pane: bool,
 3894        save_intent: SaveIntent,
 3895        window: &mut Window,
 3896        cx: &mut Context<Self>,
 3897    ) -> Option<Task<Result<()>>> {
 3898        let current_pane = self.active_pane();
 3899
 3900        let mut tasks = Vec::new();
 3901
 3902        if retain_active_pane {
 3903            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3904                pane.close_other_items(
 3905                    &CloseOtherItems {
 3906                        save_intent: None,
 3907                        close_pinned: false,
 3908                    },
 3909                    None,
 3910                    window,
 3911                    cx,
 3912                )
 3913            });
 3914
 3915            tasks.push(current_pane_close);
 3916        }
 3917
 3918        for pane in self.panes() {
 3919            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3920                continue;
 3921            }
 3922
 3923            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3924                pane.close_all_items(
 3925                    &CloseAllItems {
 3926                        save_intent: Some(save_intent),
 3927                        close_pinned: false,
 3928                    },
 3929                    window,
 3930                    cx,
 3931                )
 3932            });
 3933
 3934            tasks.push(close_pane_items)
 3935        }
 3936
 3937        if tasks.is_empty() {
 3938            None
 3939        } else {
 3940            Some(cx.spawn_in(window, async move |_, _| {
 3941                for task in tasks {
 3942                    task.await?
 3943                }
 3944                Ok(())
 3945            }))
 3946        }
 3947    }
 3948
 3949    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3950        self.dock_at_position(position).read(cx).is_open()
 3951    }
 3952
 3953    pub fn toggle_dock(
 3954        &mut self,
 3955        dock_side: DockPosition,
 3956        window: &mut Window,
 3957        cx: &mut Context<Self>,
 3958    ) {
 3959        let mut focus_center = false;
 3960        let mut reveal_dock = false;
 3961
 3962        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3963        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3964
 3965        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3966            telemetry::event!(
 3967                "Panel Button Clicked",
 3968                name = panel.persistent_name(),
 3969                toggle_state = !was_visible
 3970            );
 3971        }
 3972        if was_visible {
 3973            self.save_open_dock_positions(cx);
 3974        }
 3975
 3976        let dock = self.dock_at_position(dock_side);
 3977        dock.update(cx, |dock, cx| {
 3978            dock.set_open(!was_visible, window, cx);
 3979
 3980            if dock.active_panel().is_none() {
 3981                let Some(panel_ix) = dock
 3982                    .first_enabled_panel_idx(cx)
 3983                    .log_with_level(log::Level::Info)
 3984                else {
 3985                    return;
 3986                };
 3987                dock.activate_panel(panel_ix, window, cx);
 3988            }
 3989
 3990            if let Some(active_panel) = dock.active_panel() {
 3991                if was_visible {
 3992                    if active_panel
 3993                        .panel_focus_handle(cx)
 3994                        .contains_focused(window, cx)
 3995                    {
 3996                        focus_center = true;
 3997                    }
 3998                } else {
 3999                    let focus_handle = &active_panel.panel_focus_handle(cx);
 4000                    window.focus(focus_handle, cx);
 4001                    reveal_dock = true;
 4002                }
 4003            }
 4004        });
 4005
 4006        if reveal_dock {
 4007            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 4008        }
 4009
 4010        if focus_center {
 4011            self.active_pane
 4012                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4013        }
 4014
 4015        cx.notify();
 4016        self.serialize_workspace(window, cx);
 4017    }
 4018
 4019    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 4020        self.all_docks().into_iter().find(|&dock| {
 4021            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 4022        })
 4023    }
 4024
 4025    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 4026        if let Some(dock) = self.active_dock(window, cx).cloned() {
 4027            self.save_open_dock_positions(cx);
 4028            dock.update(cx, |dock, cx| {
 4029                dock.set_open(false, window, cx);
 4030            });
 4031            return true;
 4032        }
 4033        false
 4034    }
 4035
 4036    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4037        self.save_open_dock_positions(cx);
 4038        for dock in self.all_docks() {
 4039            dock.update(cx, |dock, cx| {
 4040                dock.set_open(false, window, cx);
 4041            });
 4042        }
 4043
 4044        cx.focus_self(window);
 4045        cx.notify();
 4046        self.serialize_workspace(window, cx);
 4047    }
 4048
 4049    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 4050        self.all_docks()
 4051            .into_iter()
 4052            .filter_map(|dock| {
 4053                let dock_ref = dock.read(cx);
 4054                if dock_ref.is_open() {
 4055                    Some(dock_ref.position())
 4056                } else {
 4057                    None
 4058                }
 4059            })
 4060            .collect()
 4061    }
 4062
 4063    /// Saves the positions of currently open docks.
 4064    ///
 4065    /// Updates `last_open_dock_positions` with positions of all currently open
 4066    /// docks, to later be restored by the 'Toggle All Docks' action.
 4067    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 4068        let open_dock_positions = self.get_open_dock_positions(cx);
 4069        if !open_dock_positions.is_empty() {
 4070            self.last_open_dock_positions = open_dock_positions;
 4071        }
 4072    }
 4073
 4074    /// Toggles all docks between open and closed states.
 4075    ///
 4076    /// If any docks are open, closes all and remembers their positions. If all
 4077    /// docks are closed, restores the last remembered dock configuration.
 4078    fn toggle_all_docks(
 4079        &mut self,
 4080        _: &ToggleAllDocks,
 4081        window: &mut Window,
 4082        cx: &mut Context<Self>,
 4083    ) {
 4084        let open_dock_positions = self.get_open_dock_positions(cx);
 4085
 4086        if !open_dock_positions.is_empty() {
 4087            self.close_all_docks(window, cx);
 4088        } else if !self.last_open_dock_positions.is_empty() {
 4089            self.restore_last_open_docks(window, cx);
 4090        }
 4091    }
 4092
 4093    /// Reopens docks from the most recently remembered configuration.
 4094    ///
 4095    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 4096    /// and clears the stored positions.
 4097    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4098        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 4099
 4100        for position in positions_to_open {
 4101            let dock = self.dock_at_position(position);
 4102            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 4103        }
 4104
 4105        cx.focus_self(window);
 4106        cx.notify();
 4107        self.serialize_workspace(window, cx);
 4108    }
 4109
 4110    /// Transfer focus to the panel of the given type.
 4111    pub fn focus_panel<T: Panel>(
 4112        &mut self,
 4113        window: &mut Window,
 4114        cx: &mut Context<Self>,
 4115    ) -> Option<Entity<T>> {
 4116        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 4117        panel.to_any().downcast().ok()
 4118    }
 4119
 4120    /// Focus the panel of the given type if it isn't already focused. If it is
 4121    /// already focused, then transfer focus back to the workspace center.
 4122    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 4123    /// panel when transferring focus back to the center.
 4124    pub fn toggle_panel_focus<T: Panel>(
 4125        &mut self,
 4126        window: &mut Window,
 4127        cx: &mut Context<Self>,
 4128    ) -> bool {
 4129        let mut did_focus_panel = false;
 4130        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 4131            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 4132            did_focus_panel
 4133        });
 4134
 4135        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4136            self.close_panel::<T>(window, cx);
 4137        }
 4138
 4139        telemetry::event!(
 4140            "Panel Button Clicked",
 4141            name = T::persistent_name(),
 4142            toggle_state = did_focus_panel
 4143        );
 4144
 4145        did_focus_panel
 4146    }
 4147
 4148    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4149        if let Some(item) = self.active_item(cx) {
 4150            item.item_focus_handle(cx).focus(window, cx);
 4151        } else {
 4152            log::error!("Could not find a focus target when switching focus to the center panes",);
 4153        }
 4154    }
 4155
 4156    pub fn activate_panel_for_proto_id(
 4157        &mut self,
 4158        panel_id: PanelId,
 4159        window: &mut Window,
 4160        cx: &mut Context<Self>,
 4161    ) -> Option<Arc<dyn PanelHandle>> {
 4162        let mut panel = None;
 4163        for dock in self.all_docks() {
 4164            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4165                panel = dock.update(cx, |dock, cx| {
 4166                    dock.activate_panel(panel_index, window, cx);
 4167                    dock.set_open(true, window, cx);
 4168                    dock.active_panel().cloned()
 4169                });
 4170                break;
 4171            }
 4172        }
 4173
 4174        if panel.is_some() {
 4175            cx.notify();
 4176            self.serialize_workspace(window, cx);
 4177        }
 4178
 4179        panel
 4180    }
 4181
 4182    /// Focus or unfocus the given panel type, depending on the given callback.
 4183    fn focus_or_unfocus_panel<T: Panel>(
 4184        &mut self,
 4185        window: &mut Window,
 4186        cx: &mut Context<Self>,
 4187        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4188    ) -> Option<Arc<dyn PanelHandle>> {
 4189        let mut result_panel = None;
 4190        let mut serialize = false;
 4191        for dock in self.all_docks() {
 4192            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4193                let mut focus_center = false;
 4194                let panel = dock.update(cx, |dock, cx| {
 4195                    dock.activate_panel(panel_index, window, cx);
 4196
 4197                    let panel = dock.active_panel().cloned();
 4198                    if let Some(panel) = panel.as_ref() {
 4199                        if should_focus(&**panel, window, cx) {
 4200                            dock.set_open(true, window, cx);
 4201                            panel.panel_focus_handle(cx).focus(window, cx);
 4202                        } else {
 4203                            focus_center = true;
 4204                        }
 4205                    }
 4206                    panel
 4207                });
 4208
 4209                if focus_center {
 4210                    self.active_pane
 4211                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4212                }
 4213
 4214                result_panel = panel;
 4215                serialize = true;
 4216                break;
 4217            }
 4218        }
 4219
 4220        if serialize {
 4221            self.serialize_workspace(window, cx);
 4222        }
 4223
 4224        cx.notify();
 4225        result_panel
 4226    }
 4227
 4228    /// Open the panel of the given type
 4229    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4230        for dock in self.all_docks() {
 4231            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4232                dock.update(cx, |dock, cx| {
 4233                    dock.activate_panel(panel_index, window, cx);
 4234                    dock.set_open(true, window, cx);
 4235                });
 4236            }
 4237        }
 4238    }
 4239
 4240    /// Open the panel of the given type, dismissing any zoomed items that
 4241    /// would obscure it (e.g. a zoomed terminal).
 4242    pub fn reveal_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4243        let dock_position = self.all_docks().iter().find_map(|dock| {
 4244            let dock = dock.read(cx);
 4245            dock.panel_index_for_type::<T>().map(|_| dock.position())
 4246        });
 4247        self.dismiss_zoomed_items_to_reveal(dock_position, window, cx);
 4248        self.open_panel::<T>(window, cx);
 4249    }
 4250
 4251    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4252        for dock in self.all_docks().iter() {
 4253            dock.update(cx, |dock, cx| {
 4254                if dock.panel::<T>().is_some() {
 4255                    dock.set_open(false, window, cx)
 4256                }
 4257            })
 4258        }
 4259    }
 4260
 4261    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4262        self.all_docks()
 4263            .iter()
 4264            .find_map(|dock| dock.read(cx).panel::<T>())
 4265    }
 4266
 4267    fn dismiss_zoomed_items_to_reveal(
 4268        &mut self,
 4269        dock_to_reveal: Option<DockPosition>,
 4270        window: &mut Window,
 4271        cx: &mut Context<Self>,
 4272    ) {
 4273        // If a center pane is zoomed, unzoom it.
 4274        for pane in &self.panes {
 4275            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4276                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4277            }
 4278        }
 4279
 4280        // If another dock is zoomed, hide it.
 4281        let mut focus_center = false;
 4282        for dock in self.all_docks() {
 4283            dock.update(cx, |dock, cx| {
 4284                if Some(dock.position()) != dock_to_reveal
 4285                    && let Some(panel) = dock.active_panel()
 4286                    && panel.is_zoomed(window, cx)
 4287                {
 4288                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4289                    dock.set_open(false, window, cx);
 4290                }
 4291            });
 4292        }
 4293
 4294        if focus_center {
 4295            self.active_pane
 4296                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4297        }
 4298
 4299        if self.zoomed_position != dock_to_reveal {
 4300            self.zoomed = None;
 4301            self.zoomed_position = None;
 4302            cx.emit(Event::ZoomChanged);
 4303        }
 4304
 4305        cx.notify();
 4306    }
 4307
 4308    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4309        let pane = cx.new(|cx| {
 4310            let mut pane = Pane::new(
 4311                self.weak_handle(),
 4312                self.project.clone(),
 4313                self.pane_history_timestamp.clone(),
 4314                None,
 4315                NewFile.boxed_clone(),
 4316                true,
 4317                window,
 4318                cx,
 4319            );
 4320            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4321            pane
 4322        });
 4323        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4324            .detach();
 4325        self.panes.push(pane.clone());
 4326
 4327        window.focus(&pane.focus_handle(cx), cx);
 4328
 4329        cx.emit(Event::PaneAdded(pane.clone()));
 4330        pane
 4331    }
 4332
 4333    pub fn add_item_to_center(
 4334        &mut self,
 4335        item: Box<dyn ItemHandle>,
 4336        window: &mut Window,
 4337        cx: &mut Context<Self>,
 4338    ) -> bool {
 4339        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4340            if let Some(center_pane) = center_pane.upgrade() {
 4341                center_pane.update(cx, |pane, cx| {
 4342                    pane.add_item(item, true, true, None, window, cx)
 4343                });
 4344                true
 4345            } else {
 4346                false
 4347            }
 4348        } else {
 4349            false
 4350        }
 4351    }
 4352
 4353    pub fn add_item_to_active_pane(
 4354        &mut self,
 4355        item: Box<dyn ItemHandle>,
 4356        destination_index: Option<usize>,
 4357        focus_item: bool,
 4358        window: &mut Window,
 4359        cx: &mut App,
 4360    ) {
 4361        self.add_item(
 4362            self.active_pane.clone(),
 4363            item,
 4364            destination_index,
 4365            false,
 4366            focus_item,
 4367            window,
 4368            cx,
 4369        )
 4370    }
 4371
 4372    pub fn add_item(
 4373        &mut self,
 4374        pane: Entity<Pane>,
 4375        item: Box<dyn ItemHandle>,
 4376        destination_index: Option<usize>,
 4377        activate_pane: bool,
 4378        focus_item: bool,
 4379        window: &mut Window,
 4380        cx: &mut App,
 4381    ) {
 4382        pane.update(cx, |pane, cx| {
 4383            pane.add_item(
 4384                item,
 4385                activate_pane,
 4386                focus_item,
 4387                destination_index,
 4388                window,
 4389                cx,
 4390            )
 4391        });
 4392    }
 4393
 4394    pub fn split_item(
 4395        &mut self,
 4396        split_direction: SplitDirection,
 4397        item: Box<dyn ItemHandle>,
 4398        window: &mut Window,
 4399        cx: &mut Context<Self>,
 4400    ) {
 4401        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4402        self.add_item(new_pane, item, None, true, true, window, cx);
 4403    }
 4404
 4405    pub fn open_abs_path(
 4406        &mut self,
 4407        abs_path: PathBuf,
 4408        options: OpenOptions,
 4409        window: &mut Window,
 4410        cx: &mut Context<Self>,
 4411    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4412        cx.spawn_in(window, async move |workspace, cx| {
 4413            let open_paths_task_result = workspace
 4414                .update_in(cx, |workspace, window, cx| {
 4415                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4416                })
 4417                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4418                .await;
 4419            anyhow::ensure!(
 4420                open_paths_task_result.len() == 1,
 4421                "open abs path {abs_path:?} task returned incorrect number of results"
 4422            );
 4423            match open_paths_task_result
 4424                .into_iter()
 4425                .next()
 4426                .expect("ensured single task result")
 4427            {
 4428                Some(open_result) => {
 4429                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4430                }
 4431                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4432            }
 4433        })
 4434    }
 4435
 4436    pub fn split_abs_path(
 4437        &mut self,
 4438        abs_path: PathBuf,
 4439        visible: bool,
 4440        window: &mut Window,
 4441        cx: &mut Context<Self>,
 4442    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4443        let project_path_task =
 4444            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4445        cx.spawn_in(window, async move |this, cx| {
 4446            let (_, path) = project_path_task.await?;
 4447            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4448                .await
 4449        })
 4450    }
 4451
 4452    pub fn open_path(
 4453        &mut self,
 4454        path: impl Into<ProjectPath>,
 4455        pane: Option<WeakEntity<Pane>>,
 4456        focus_item: bool,
 4457        window: &mut Window,
 4458        cx: &mut App,
 4459    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4460        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4461    }
 4462
 4463    pub fn open_path_preview(
 4464        &mut self,
 4465        path: impl Into<ProjectPath>,
 4466        pane: Option<WeakEntity<Pane>>,
 4467        focus_item: bool,
 4468        allow_preview: bool,
 4469        activate: bool,
 4470        window: &mut Window,
 4471        cx: &mut App,
 4472    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4473        let pane = pane.unwrap_or_else(|| {
 4474            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4475                self.panes
 4476                    .first()
 4477                    .expect("There must be an active pane")
 4478                    .downgrade()
 4479            })
 4480        });
 4481
 4482        let project_path = path.into();
 4483        let task = self.load_path(project_path.clone(), window, cx);
 4484        window.spawn(cx, async move |cx| {
 4485            let (project_entry_id, build_item) = task.await?;
 4486
 4487            pane.update_in(cx, |pane, window, cx| {
 4488                pane.open_item(
 4489                    project_entry_id,
 4490                    project_path,
 4491                    focus_item,
 4492                    allow_preview,
 4493                    activate,
 4494                    None,
 4495                    window,
 4496                    cx,
 4497                    build_item,
 4498                )
 4499            })
 4500        })
 4501    }
 4502
 4503    pub fn split_path(
 4504        &mut self,
 4505        path: impl Into<ProjectPath>,
 4506        window: &mut Window,
 4507        cx: &mut Context<Self>,
 4508    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4509        self.split_path_preview(path, false, None, window, cx)
 4510    }
 4511
 4512    pub fn split_path_preview(
 4513        &mut self,
 4514        path: impl Into<ProjectPath>,
 4515        allow_preview: bool,
 4516        split_direction: Option<SplitDirection>,
 4517        window: &mut Window,
 4518        cx: &mut Context<Self>,
 4519    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4520        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4521            self.panes
 4522                .first()
 4523                .expect("There must be an active pane")
 4524                .downgrade()
 4525        });
 4526
 4527        if let Member::Pane(center_pane) = &self.center.root
 4528            && center_pane.read(cx).items_len() == 0
 4529        {
 4530            return self.open_path(path, Some(pane), true, window, cx);
 4531        }
 4532
 4533        let project_path = path.into();
 4534        let task = self.load_path(project_path.clone(), window, cx);
 4535        cx.spawn_in(window, async move |this, cx| {
 4536            let (project_entry_id, build_item) = task.await?;
 4537            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4538                let pane = pane.upgrade()?;
 4539                let new_pane = this.split_pane(
 4540                    pane,
 4541                    split_direction.unwrap_or(SplitDirection::Right),
 4542                    window,
 4543                    cx,
 4544                );
 4545                new_pane.update(cx, |new_pane, cx| {
 4546                    Some(new_pane.open_item(
 4547                        project_entry_id,
 4548                        project_path,
 4549                        true,
 4550                        allow_preview,
 4551                        true,
 4552                        None,
 4553                        window,
 4554                        cx,
 4555                        build_item,
 4556                    ))
 4557                })
 4558            })
 4559            .map(|option| option.context("pane was dropped"))?
 4560        })
 4561    }
 4562
 4563    fn load_path(
 4564        &mut self,
 4565        path: ProjectPath,
 4566        window: &mut Window,
 4567        cx: &mut App,
 4568    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4569        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4570        registry.open_path(self.project(), &path, window, cx)
 4571    }
 4572
 4573    pub fn find_project_item<T>(
 4574        &self,
 4575        pane: &Entity<Pane>,
 4576        project_item: &Entity<T::Item>,
 4577        cx: &App,
 4578    ) -> Option<Entity<T>>
 4579    where
 4580        T: ProjectItem,
 4581    {
 4582        use project::ProjectItem as _;
 4583        let project_item = project_item.read(cx);
 4584        let entry_id = project_item.entry_id(cx);
 4585        let project_path = project_item.project_path(cx);
 4586
 4587        let mut item = None;
 4588        if let Some(entry_id) = entry_id {
 4589            item = pane.read(cx).item_for_entry(entry_id, cx);
 4590        }
 4591        if item.is_none()
 4592            && let Some(project_path) = project_path
 4593        {
 4594            item = pane.read(cx).item_for_path(project_path, cx);
 4595        }
 4596
 4597        item.and_then(|item| item.downcast::<T>())
 4598    }
 4599
 4600    pub fn is_project_item_open<T>(
 4601        &self,
 4602        pane: &Entity<Pane>,
 4603        project_item: &Entity<T::Item>,
 4604        cx: &App,
 4605    ) -> bool
 4606    where
 4607        T: ProjectItem,
 4608    {
 4609        self.find_project_item::<T>(pane, project_item, cx)
 4610            .is_some()
 4611    }
 4612
 4613    pub fn open_project_item<T>(
 4614        &mut self,
 4615        pane: Entity<Pane>,
 4616        project_item: Entity<T::Item>,
 4617        activate_pane: bool,
 4618        focus_item: bool,
 4619        keep_old_preview: bool,
 4620        allow_new_preview: bool,
 4621        window: &mut Window,
 4622        cx: &mut Context<Self>,
 4623    ) -> Entity<T>
 4624    where
 4625        T: ProjectItem,
 4626    {
 4627        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4628
 4629        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4630            if !keep_old_preview
 4631                && let Some(old_id) = old_item_id
 4632                && old_id != item.item_id()
 4633            {
 4634                // switching to a different item, so unpreview old active item
 4635                pane.update(cx, |pane, _| {
 4636                    pane.unpreview_item_if_preview(old_id);
 4637                });
 4638            }
 4639
 4640            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4641            if !allow_new_preview {
 4642                pane.update(cx, |pane, _| {
 4643                    pane.unpreview_item_if_preview(item.item_id());
 4644                });
 4645            }
 4646            return item;
 4647        }
 4648
 4649        let item = pane.update(cx, |pane, cx| {
 4650            cx.new(|cx| {
 4651                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4652            })
 4653        });
 4654        let mut destination_index = None;
 4655        pane.update(cx, |pane, cx| {
 4656            if !keep_old_preview && let Some(old_id) = old_item_id {
 4657                pane.unpreview_item_if_preview(old_id);
 4658            }
 4659            if allow_new_preview {
 4660                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4661            }
 4662        });
 4663
 4664        self.add_item(
 4665            pane,
 4666            Box::new(item.clone()),
 4667            destination_index,
 4668            activate_pane,
 4669            focus_item,
 4670            window,
 4671            cx,
 4672        );
 4673        item
 4674    }
 4675
 4676    pub fn open_shared_screen(
 4677        &mut self,
 4678        peer_id: PeerId,
 4679        window: &mut Window,
 4680        cx: &mut Context<Self>,
 4681    ) {
 4682        if let Some(shared_screen) =
 4683            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4684        {
 4685            self.active_pane.update(cx, |pane, cx| {
 4686                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4687            });
 4688        }
 4689    }
 4690
 4691    pub fn activate_item(
 4692        &mut self,
 4693        item: &dyn ItemHandle,
 4694        activate_pane: bool,
 4695        focus_item: bool,
 4696        window: &mut Window,
 4697        cx: &mut App,
 4698    ) -> bool {
 4699        let result = self.panes.iter().find_map(|pane| {
 4700            pane.read(cx)
 4701                .index_for_item(item)
 4702                .map(|ix| (pane.clone(), ix))
 4703        });
 4704        if let Some((pane, ix)) = result {
 4705            pane.update(cx, |pane, cx| {
 4706                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4707            });
 4708            true
 4709        } else {
 4710            false
 4711        }
 4712    }
 4713
 4714    fn activate_pane_at_index(
 4715        &mut self,
 4716        action: &ActivatePane,
 4717        window: &mut Window,
 4718        cx: &mut Context<Self>,
 4719    ) {
 4720        let panes = self.center.panes();
 4721        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4722            window.focus(&pane.focus_handle(cx), cx);
 4723        } else {
 4724            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4725                .detach();
 4726        }
 4727    }
 4728
 4729    fn move_item_to_pane_at_index(
 4730        &mut self,
 4731        action: &MoveItemToPane,
 4732        window: &mut Window,
 4733        cx: &mut Context<Self>,
 4734    ) {
 4735        let panes = self.center.panes();
 4736        let destination = match panes.get(action.destination) {
 4737            Some(&destination) => destination.clone(),
 4738            None => {
 4739                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4740                    return;
 4741                }
 4742                let direction = SplitDirection::Right;
 4743                let split_off_pane = self
 4744                    .find_pane_in_direction(direction, cx)
 4745                    .unwrap_or_else(|| self.active_pane.clone());
 4746                let new_pane = self.add_pane(window, cx);
 4747                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4748                new_pane
 4749            }
 4750        };
 4751
 4752        if action.clone {
 4753            if self
 4754                .active_pane
 4755                .read(cx)
 4756                .active_item()
 4757                .is_some_and(|item| item.can_split(cx))
 4758            {
 4759                clone_active_item(
 4760                    self.database_id(),
 4761                    &self.active_pane,
 4762                    &destination,
 4763                    action.focus,
 4764                    window,
 4765                    cx,
 4766                );
 4767                return;
 4768            }
 4769        }
 4770        move_active_item(
 4771            &self.active_pane,
 4772            &destination,
 4773            action.focus,
 4774            true,
 4775            window,
 4776            cx,
 4777        )
 4778    }
 4779
 4780    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4781        let panes = self.center.panes();
 4782        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4783            let next_ix = (ix + 1) % panes.len();
 4784            let next_pane = panes[next_ix].clone();
 4785            window.focus(&next_pane.focus_handle(cx), cx);
 4786        }
 4787    }
 4788
 4789    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4790        let panes = self.center.panes();
 4791        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4792            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4793            let prev_pane = panes[prev_ix].clone();
 4794            window.focus(&prev_pane.focus_handle(cx), cx);
 4795        }
 4796    }
 4797
 4798    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4799        let last_pane = self.center.last_pane();
 4800        window.focus(&last_pane.focus_handle(cx), cx);
 4801    }
 4802
 4803    pub fn activate_pane_in_direction(
 4804        &mut self,
 4805        direction: SplitDirection,
 4806        window: &mut Window,
 4807        cx: &mut App,
 4808    ) {
 4809        use ActivateInDirectionTarget as Target;
 4810        enum Origin {
 4811            Sidebar,
 4812            LeftDock,
 4813            RightDock,
 4814            BottomDock,
 4815            Center,
 4816        }
 4817
 4818        let origin: Origin = if self
 4819            .sidebar_focus_handle
 4820            .as_ref()
 4821            .is_some_and(|h| h.contains_focused(window, cx))
 4822        {
 4823            Origin::Sidebar
 4824        } else {
 4825            [
 4826                (&self.left_dock, Origin::LeftDock),
 4827                (&self.right_dock, Origin::RightDock),
 4828                (&self.bottom_dock, Origin::BottomDock),
 4829            ]
 4830            .into_iter()
 4831            .find_map(|(dock, origin)| {
 4832                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4833                    Some(origin)
 4834                } else {
 4835                    None
 4836                }
 4837            })
 4838            .unwrap_or(Origin::Center)
 4839        };
 4840
 4841        let get_last_active_pane = || {
 4842            let pane = self
 4843                .last_active_center_pane
 4844                .clone()
 4845                .unwrap_or_else(|| {
 4846                    self.panes
 4847                        .first()
 4848                        .expect("There must be an active pane")
 4849                        .downgrade()
 4850                })
 4851                .upgrade()?;
 4852            (pane.read(cx).items_len() != 0).then_some(pane)
 4853        };
 4854
 4855        let try_dock =
 4856            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4857
 4858        let sidebar_target = self
 4859            .sidebar_focus_handle
 4860            .as_ref()
 4861            .map(|h| Target::Sidebar(h.clone()));
 4862
 4863        let target = match (origin, direction) {
 4864            // From the sidebar, only Right navigates into the workspace.
 4865            (Origin::Sidebar, SplitDirection::Right) => try_dock(&self.left_dock)
 4866                .or_else(|| get_last_active_pane().map(Target::Pane))
 4867                .or_else(|| try_dock(&self.bottom_dock))
 4868                .or_else(|| try_dock(&self.right_dock)),
 4869
 4870            (Origin::Sidebar, _) => None,
 4871
 4872            // We're in the center, so we first try to go to a different pane,
 4873            // otherwise try to go to a dock.
 4874            (Origin::Center, direction) => {
 4875                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4876                    Some(Target::Pane(pane))
 4877                } else {
 4878                    match direction {
 4879                        SplitDirection::Up => None,
 4880                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4881                        SplitDirection::Left => try_dock(&self.left_dock).or(sidebar_target),
 4882                        SplitDirection::Right => try_dock(&self.right_dock),
 4883                    }
 4884                }
 4885            }
 4886
 4887            (Origin::LeftDock, SplitDirection::Right) => {
 4888                if let Some(last_active_pane) = get_last_active_pane() {
 4889                    Some(Target::Pane(last_active_pane))
 4890                } else {
 4891                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4892                }
 4893            }
 4894
 4895            (Origin::LeftDock, SplitDirection::Left) => sidebar_target,
 4896
 4897            (Origin::LeftDock, SplitDirection::Down)
 4898            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4899
 4900            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4901            (Origin::BottomDock, SplitDirection::Left) => {
 4902                try_dock(&self.left_dock).or(sidebar_target)
 4903            }
 4904            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4905
 4906            (Origin::RightDock, SplitDirection::Left) => {
 4907                if let Some(last_active_pane) = get_last_active_pane() {
 4908                    Some(Target::Pane(last_active_pane))
 4909                } else {
 4910                    try_dock(&self.bottom_dock)
 4911                        .or_else(|| try_dock(&self.left_dock))
 4912                        .or(sidebar_target)
 4913                }
 4914            }
 4915
 4916            _ => None,
 4917        };
 4918
 4919        match target {
 4920            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4921                let pane = pane.read(cx);
 4922                if let Some(item) = pane.active_item() {
 4923                    item.item_focus_handle(cx).focus(window, cx);
 4924                } else {
 4925                    log::error!(
 4926                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4927                    );
 4928                }
 4929            }
 4930            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4931                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4932                window.defer(cx, move |window, cx| {
 4933                    let dock = dock.read(cx);
 4934                    if let Some(panel) = dock.active_panel() {
 4935                        panel.panel_focus_handle(cx).focus(window, cx);
 4936                    } else {
 4937                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4938                    }
 4939                })
 4940            }
 4941            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4942                focus_handle.focus(window, cx);
 4943            }
 4944            None => {}
 4945        }
 4946    }
 4947
 4948    pub fn move_item_to_pane_in_direction(
 4949        &mut self,
 4950        action: &MoveItemToPaneInDirection,
 4951        window: &mut Window,
 4952        cx: &mut Context<Self>,
 4953    ) {
 4954        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4955            Some(destination) => destination,
 4956            None => {
 4957                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4958                    return;
 4959                }
 4960                let new_pane = self.add_pane(window, cx);
 4961                self.center
 4962                    .split(&self.active_pane, &new_pane, action.direction, cx);
 4963                new_pane
 4964            }
 4965        };
 4966
 4967        if action.clone {
 4968            if self
 4969                .active_pane
 4970                .read(cx)
 4971                .active_item()
 4972                .is_some_and(|item| item.can_split(cx))
 4973            {
 4974                clone_active_item(
 4975                    self.database_id(),
 4976                    &self.active_pane,
 4977                    &destination,
 4978                    action.focus,
 4979                    window,
 4980                    cx,
 4981                );
 4982                return;
 4983            }
 4984        }
 4985        move_active_item(
 4986            &self.active_pane,
 4987            &destination,
 4988            action.focus,
 4989            true,
 4990            window,
 4991            cx,
 4992        );
 4993    }
 4994
 4995    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4996        self.center.bounding_box_for_pane(pane)
 4997    }
 4998
 4999    pub fn find_pane_in_direction(
 5000        &mut self,
 5001        direction: SplitDirection,
 5002        cx: &App,
 5003    ) -> Option<Entity<Pane>> {
 5004        self.center
 5005            .find_pane_in_direction(&self.active_pane, direction, cx)
 5006            .cloned()
 5007    }
 5008
 5009    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5010        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 5011            self.center.swap(&self.active_pane, &to, cx);
 5012            cx.notify();
 5013        }
 5014    }
 5015
 5016    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5017        if self
 5018            .center
 5019            .move_to_border(&self.active_pane, direction, cx)
 5020            .unwrap()
 5021        {
 5022            cx.notify();
 5023        }
 5024    }
 5025
 5026    pub fn resize_pane(
 5027        &mut self,
 5028        axis: gpui::Axis,
 5029        amount: Pixels,
 5030        window: &mut Window,
 5031        cx: &mut Context<Self>,
 5032    ) {
 5033        let docks = self.all_docks();
 5034        let active_dock = docks
 5035            .into_iter()
 5036            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 5037
 5038        if let Some(dock_entity) = active_dock {
 5039            let dock = dock_entity.read(cx);
 5040            let Some(panel_size) = self.dock_size(&dock, window, cx) else {
 5041                return;
 5042            };
 5043            match dock.position() {
 5044                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 5045                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 5046                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 5047            }
 5048        } else {
 5049            self.center
 5050                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 5051        }
 5052        cx.notify();
 5053    }
 5054
 5055    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 5056        self.center.reset_pane_sizes(cx);
 5057        cx.notify();
 5058    }
 5059
 5060    fn handle_pane_focused(
 5061        &mut self,
 5062        pane: Entity<Pane>,
 5063        window: &mut Window,
 5064        cx: &mut Context<Self>,
 5065    ) {
 5066        // This is explicitly hoisted out of the following check for pane identity as
 5067        // terminal panel panes are not registered as a center panes.
 5068        self.status_bar.update(cx, |status_bar, cx| {
 5069            status_bar.set_active_pane(&pane, window, cx);
 5070        });
 5071        if self.active_pane != pane {
 5072            self.set_active_pane(&pane, window, cx);
 5073        }
 5074
 5075        if self.last_active_center_pane.is_none() {
 5076            self.last_active_center_pane = Some(pane.downgrade());
 5077        }
 5078
 5079        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 5080        // This prevents the dock from closing when focus events fire during window activation.
 5081        // We also preserve any dock whose active panel itself has focus — this covers
 5082        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 5083        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 5084            let dock_read = dock.read(cx);
 5085            if let Some(panel) = dock_read.active_panel() {
 5086                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 5087                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 5088                {
 5089                    return Some(dock_read.position());
 5090                }
 5091            }
 5092            None
 5093        });
 5094
 5095        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 5096        if pane.read(cx).is_zoomed() {
 5097            self.zoomed = Some(pane.downgrade().into());
 5098        } else {
 5099            self.zoomed = None;
 5100        }
 5101        self.zoomed_position = None;
 5102        cx.emit(Event::ZoomChanged);
 5103        self.update_active_view_for_followers(window, cx);
 5104        pane.update(cx, |pane, _| {
 5105            pane.track_alternate_file_items();
 5106        });
 5107
 5108        cx.notify();
 5109    }
 5110
 5111    fn set_active_pane(
 5112        &mut self,
 5113        pane: &Entity<Pane>,
 5114        window: &mut Window,
 5115        cx: &mut Context<Self>,
 5116    ) {
 5117        self.active_pane = pane.clone();
 5118        self.active_item_path_changed(true, window, cx);
 5119        self.last_active_center_pane = Some(pane.downgrade());
 5120    }
 5121
 5122    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5123        self.update_active_view_for_followers(window, cx);
 5124    }
 5125
 5126    fn handle_pane_event(
 5127        &mut self,
 5128        pane: &Entity<Pane>,
 5129        event: &pane::Event,
 5130        window: &mut Window,
 5131        cx: &mut Context<Self>,
 5132    ) {
 5133        let mut serialize_workspace = true;
 5134        match event {
 5135            pane::Event::AddItem { item } => {
 5136                item.added_to_pane(self, pane.clone(), window, cx);
 5137                cx.emit(Event::ItemAdded {
 5138                    item: item.boxed_clone(),
 5139                });
 5140            }
 5141            pane::Event::Split { direction, mode } => {
 5142                match mode {
 5143                    SplitMode::ClonePane => {
 5144                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5145                            .detach();
 5146                    }
 5147                    SplitMode::EmptyPane => {
 5148                        self.split_pane(pane.clone(), *direction, window, cx);
 5149                    }
 5150                    SplitMode::MovePane => {
 5151                        self.split_and_move(pane.clone(), *direction, window, cx);
 5152                    }
 5153                };
 5154            }
 5155            pane::Event::JoinIntoNext => {
 5156                self.join_pane_into_next(pane.clone(), window, cx);
 5157            }
 5158            pane::Event::JoinAll => {
 5159                self.join_all_panes(window, cx);
 5160            }
 5161            pane::Event::Remove { focus_on_pane } => {
 5162                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5163            }
 5164            pane::Event::ActivateItem {
 5165                local,
 5166                focus_changed,
 5167            } => {
 5168                window.invalidate_character_coordinates();
 5169
 5170                pane.update(cx, |pane, _| {
 5171                    pane.track_alternate_file_items();
 5172                });
 5173                if *local {
 5174                    self.unfollow_in_pane(pane, window, cx);
 5175                }
 5176                serialize_workspace = *focus_changed || pane != self.active_pane();
 5177                if pane == self.active_pane() {
 5178                    self.active_item_path_changed(*focus_changed, window, cx);
 5179                    self.update_active_view_for_followers(window, cx);
 5180                } else if *local {
 5181                    self.set_active_pane(pane, window, cx);
 5182                }
 5183            }
 5184            pane::Event::UserSavedItem { item, save_intent } => {
 5185                cx.emit(Event::UserSavedItem {
 5186                    pane: pane.downgrade(),
 5187                    item: item.boxed_clone(),
 5188                    save_intent: *save_intent,
 5189                });
 5190                serialize_workspace = false;
 5191            }
 5192            pane::Event::ChangeItemTitle => {
 5193                if *pane == self.active_pane {
 5194                    self.active_item_path_changed(false, window, cx);
 5195                }
 5196                serialize_workspace = false;
 5197            }
 5198            pane::Event::RemovedItem { item } => {
 5199                cx.emit(Event::ActiveItemChanged);
 5200                self.update_window_edited(window, cx);
 5201                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5202                    && entry.get().entity_id() == pane.entity_id()
 5203                {
 5204                    entry.remove();
 5205                }
 5206                cx.emit(Event::ItemRemoved {
 5207                    item_id: item.item_id(),
 5208                });
 5209            }
 5210            pane::Event::Focus => {
 5211                window.invalidate_character_coordinates();
 5212                self.handle_pane_focused(pane.clone(), window, cx);
 5213            }
 5214            pane::Event::ZoomIn => {
 5215                if *pane == self.active_pane {
 5216                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5217                    if pane.read(cx).has_focus(window, cx) {
 5218                        self.zoomed = Some(pane.downgrade().into());
 5219                        self.zoomed_position = None;
 5220                        cx.emit(Event::ZoomChanged);
 5221                    }
 5222                    cx.notify();
 5223                }
 5224            }
 5225            pane::Event::ZoomOut => {
 5226                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5227                if self.zoomed_position.is_none() {
 5228                    self.zoomed = None;
 5229                    cx.emit(Event::ZoomChanged);
 5230                }
 5231                cx.notify();
 5232            }
 5233            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5234        }
 5235
 5236        if serialize_workspace {
 5237            self.serialize_workspace(window, cx);
 5238        }
 5239    }
 5240
 5241    pub fn unfollow_in_pane(
 5242        &mut self,
 5243        pane: &Entity<Pane>,
 5244        window: &mut Window,
 5245        cx: &mut Context<Workspace>,
 5246    ) -> Option<CollaboratorId> {
 5247        let leader_id = self.leader_for_pane(pane)?;
 5248        self.unfollow(leader_id, window, cx);
 5249        Some(leader_id)
 5250    }
 5251
 5252    pub fn split_pane(
 5253        &mut self,
 5254        pane_to_split: Entity<Pane>,
 5255        split_direction: SplitDirection,
 5256        window: &mut Window,
 5257        cx: &mut Context<Self>,
 5258    ) -> Entity<Pane> {
 5259        let new_pane = self.add_pane(window, cx);
 5260        self.center
 5261            .split(&pane_to_split, &new_pane, split_direction, cx);
 5262        cx.notify();
 5263        new_pane
 5264    }
 5265
 5266    pub fn split_and_move(
 5267        &mut self,
 5268        pane: Entity<Pane>,
 5269        direction: SplitDirection,
 5270        window: &mut Window,
 5271        cx: &mut Context<Self>,
 5272    ) {
 5273        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5274            return;
 5275        };
 5276        let new_pane = self.add_pane(window, cx);
 5277        new_pane.update(cx, |pane, cx| {
 5278            pane.add_item(item, true, true, None, window, cx)
 5279        });
 5280        self.center.split(&pane, &new_pane, direction, cx);
 5281        cx.notify();
 5282    }
 5283
 5284    pub fn split_and_clone(
 5285        &mut self,
 5286        pane: Entity<Pane>,
 5287        direction: SplitDirection,
 5288        window: &mut Window,
 5289        cx: &mut Context<Self>,
 5290    ) -> Task<Option<Entity<Pane>>> {
 5291        let Some(item) = pane.read(cx).active_item() else {
 5292            return Task::ready(None);
 5293        };
 5294        if !item.can_split(cx) {
 5295            return Task::ready(None);
 5296        }
 5297        let task = item.clone_on_split(self.database_id(), window, cx);
 5298        cx.spawn_in(window, async move |this, cx| {
 5299            if let Some(clone) = task.await {
 5300                this.update_in(cx, |this, window, cx| {
 5301                    let new_pane = this.add_pane(window, cx);
 5302                    let nav_history = pane.read(cx).fork_nav_history();
 5303                    new_pane.update(cx, |pane, cx| {
 5304                        pane.set_nav_history(nav_history, cx);
 5305                        pane.add_item(clone, true, true, None, window, cx)
 5306                    });
 5307                    this.center.split(&pane, &new_pane, direction, cx);
 5308                    cx.notify();
 5309                    new_pane
 5310                })
 5311                .ok()
 5312            } else {
 5313                None
 5314            }
 5315        })
 5316    }
 5317
 5318    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5319        let active_item = self.active_pane.read(cx).active_item();
 5320        for pane in &self.panes {
 5321            join_pane_into_active(&self.active_pane, pane, window, cx);
 5322        }
 5323        if let Some(active_item) = active_item {
 5324            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5325        }
 5326        cx.notify();
 5327    }
 5328
 5329    pub fn join_pane_into_next(
 5330        &mut self,
 5331        pane: Entity<Pane>,
 5332        window: &mut Window,
 5333        cx: &mut Context<Self>,
 5334    ) {
 5335        let next_pane = self
 5336            .find_pane_in_direction(SplitDirection::Right, cx)
 5337            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5338            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5339            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5340        let Some(next_pane) = next_pane else {
 5341            return;
 5342        };
 5343        move_all_items(&pane, &next_pane, window, cx);
 5344        cx.notify();
 5345    }
 5346
 5347    fn remove_pane(
 5348        &mut self,
 5349        pane: Entity<Pane>,
 5350        focus_on: Option<Entity<Pane>>,
 5351        window: &mut Window,
 5352        cx: &mut Context<Self>,
 5353    ) {
 5354        if self.center.remove(&pane, cx).unwrap() {
 5355            self.force_remove_pane(&pane, &focus_on, window, cx);
 5356            self.unfollow_in_pane(&pane, window, cx);
 5357            self.last_leaders_by_pane.remove(&pane.downgrade());
 5358            for removed_item in pane.read(cx).items() {
 5359                self.panes_by_item.remove(&removed_item.item_id());
 5360            }
 5361
 5362            cx.notify();
 5363        } else {
 5364            self.active_item_path_changed(true, window, cx);
 5365        }
 5366        cx.emit(Event::PaneRemoved);
 5367    }
 5368
 5369    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5370        &mut self.panes
 5371    }
 5372
 5373    pub fn panes(&self) -> &[Entity<Pane>] {
 5374        &self.panes
 5375    }
 5376
 5377    pub fn active_pane(&self) -> &Entity<Pane> {
 5378        &self.active_pane
 5379    }
 5380
 5381    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5382        for dock in self.all_docks() {
 5383            if dock.focus_handle(cx).contains_focused(window, cx)
 5384                && let Some(pane) = dock
 5385                    .read(cx)
 5386                    .active_panel()
 5387                    .and_then(|panel| panel.pane(cx))
 5388            {
 5389                return pane;
 5390            }
 5391        }
 5392        self.active_pane().clone()
 5393    }
 5394
 5395    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5396        self.find_pane_in_direction(SplitDirection::Right, cx)
 5397            .unwrap_or_else(|| {
 5398                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5399            })
 5400    }
 5401
 5402    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5403        self.pane_for_item_id(handle.item_id())
 5404    }
 5405
 5406    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5407        let weak_pane = self.panes_by_item.get(&item_id)?;
 5408        weak_pane.upgrade()
 5409    }
 5410
 5411    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5412        self.panes
 5413            .iter()
 5414            .find(|pane| pane.entity_id() == entity_id)
 5415            .cloned()
 5416    }
 5417
 5418    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5419        self.follower_states.retain(|leader_id, state| {
 5420            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5421                for item in state.items_by_leader_view_id.values() {
 5422                    item.view.set_leader_id(None, window, cx);
 5423                }
 5424                false
 5425            } else {
 5426                true
 5427            }
 5428        });
 5429        cx.notify();
 5430    }
 5431
 5432    pub fn start_following(
 5433        &mut self,
 5434        leader_id: impl Into<CollaboratorId>,
 5435        window: &mut Window,
 5436        cx: &mut Context<Self>,
 5437    ) -> Option<Task<Result<()>>> {
 5438        let leader_id = leader_id.into();
 5439        let pane = self.active_pane().clone();
 5440
 5441        self.last_leaders_by_pane
 5442            .insert(pane.downgrade(), leader_id);
 5443        self.unfollow(leader_id, window, cx);
 5444        self.unfollow_in_pane(&pane, window, cx);
 5445        self.follower_states.insert(
 5446            leader_id,
 5447            FollowerState {
 5448                center_pane: pane.clone(),
 5449                dock_pane: None,
 5450                active_view_id: None,
 5451                items_by_leader_view_id: Default::default(),
 5452            },
 5453        );
 5454        cx.notify();
 5455
 5456        match leader_id {
 5457            CollaboratorId::PeerId(leader_peer_id) => {
 5458                let room_id = self.active_call()?.room_id(cx)?;
 5459                let project_id = self.project.read(cx).remote_id();
 5460                let request = self.app_state.client.request(proto::Follow {
 5461                    room_id,
 5462                    project_id,
 5463                    leader_id: Some(leader_peer_id),
 5464                });
 5465
 5466                Some(cx.spawn_in(window, async move |this, cx| {
 5467                    let response = request.await?;
 5468                    this.update(cx, |this, _| {
 5469                        let state = this
 5470                            .follower_states
 5471                            .get_mut(&leader_id)
 5472                            .context("following interrupted")?;
 5473                        state.active_view_id = response
 5474                            .active_view
 5475                            .as_ref()
 5476                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5477                        anyhow::Ok(())
 5478                    })??;
 5479                    if let Some(view) = response.active_view {
 5480                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5481                    }
 5482                    this.update_in(cx, |this, window, cx| {
 5483                        this.leader_updated(leader_id, window, cx)
 5484                    })?;
 5485                    Ok(())
 5486                }))
 5487            }
 5488            CollaboratorId::Agent => {
 5489                self.leader_updated(leader_id, window, cx)?;
 5490                Some(Task::ready(Ok(())))
 5491            }
 5492        }
 5493    }
 5494
 5495    pub fn follow_next_collaborator(
 5496        &mut self,
 5497        _: &FollowNextCollaborator,
 5498        window: &mut Window,
 5499        cx: &mut Context<Self>,
 5500    ) {
 5501        let collaborators = self.project.read(cx).collaborators();
 5502        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5503            let mut collaborators = collaborators.keys().copied();
 5504            for peer_id in collaborators.by_ref() {
 5505                if CollaboratorId::PeerId(peer_id) == leader_id {
 5506                    break;
 5507                }
 5508            }
 5509            collaborators.next().map(CollaboratorId::PeerId)
 5510        } else if let Some(last_leader_id) =
 5511            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5512        {
 5513            match last_leader_id {
 5514                CollaboratorId::PeerId(peer_id) => {
 5515                    if collaborators.contains_key(peer_id) {
 5516                        Some(*last_leader_id)
 5517                    } else {
 5518                        None
 5519                    }
 5520                }
 5521                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5522            }
 5523        } else {
 5524            None
 5525        };
 5526
 5527        let pane = self.active_pane.clone();
 5528        let Some(leader_id) = next_leader_id.or_else(|| {
 5529            Some(CollaboratorId::PeerId(
 5530                collaborators.keys().copied().next()?,
 5531            ))
 5532        }) else {
 5533            return;
 5534        };
 5535        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5536            return;
 5537        }
 5538        if let Some(task) = self.start_following(leader_id, window, cx) {
 5539            task.detach_and_log_err(cx)
 5540        }
 5541    }
 5542
 5543    pub fn follow(
 5544        &mut self,
 5545        leader_id: impl Into<CollaboratorId>,
 5546        window: &mut Window,
 5547        cx: &mut Context<Self>,
 5548    ) {
 5549        let leader_id = leader_id.into();
 5550
 5551        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5552            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5553                return;
 5554            };
 5555            let Some(remote_participant) =
 5556                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5557            else {
 5558                return;
 5559            };
 5560
 5561            let project = self.project.read(cx);
 5562
 5563            let other_project_id = match remote_participant.location {
 5564                ParticipantLocation::External => None,
 5565                ParticipantLocation::UnsharedProject => None,
 5566                ParticipantLocation::SharedProject { project_id } => {
 5567                    if Some(project_id) == project.remote_id() {
 5568                        None
 5569                    } else {
 5570                        Some(project_id)
 5571                    }
 5572                }
 5573            };
 5574
 5575            // if they are active in another project, follow there.
 5576            if let Some(project_id) = other_project_id {
 5577                let app_state = self.app_state.clone();
 5578                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5579                    .detach_and_prompt_err("Failed to join project", window, cx, |error, _, _| {
 5580                        Some(format!("{error:#}"))
 5581                    });
 5582            }
 5583        }
 5584
 5585        // if you're already following, find the right pane and focus it.
 5586        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5587            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5588
 5589            return;
 5590        }
 5591
 5592        // Otherwise, follow.
 5593        if let Some(task) = self.start_following(leader_id, window, cx) {
 5594            task.detach_and_log_err(cx)
 5595        }
 5596    }
 5597
 5598    pub fn unfollow(
 5599        &mut self,
 5600        leader_id: impl Into<CollaboratorId>,
 5601        window: &mut Window,
 5602        cx: &mut Context<Self>,
 5603    ) -> Option<()> {
 5604        cx.notify();
 5605
 5606        let leader_id = leader_id.into();
 5607        let state = self.follower_states.remove(&leader_id)?;
 5608        for (_, item) in state.items_by_leader_view_id {
 5609            item.view.set_leader_id(None, window, cx);
 5610        }
 5611
 5612        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5613            let project_id = self.project.read(cx).remote_id();
 5614            let room_id = self.active_call()?.room_id(cx)?;
 5615            self.app_state
 5616                .client
 5617                .send(proto::Unfollow {
 5618                    room_id,
 5619                    project_id,
 5620                    leader_id: Some(leader_peer_id),
 5621                })
 5622                .log_err();
 5623        }
 5624
 5625        Some(())
 5626    }
 5627
 5628    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5629        self.follower_states.contains_key(&id.into())
 5630    }
 5631
 5632    fn active_item_path_changed(
 5633        &mut self,
 5634        focus_changed: bool,
 5635        window: &mut Window,
 5636        cx: &mut Context<Self>,
 5637    ) {
 5638        cx.emit(Event::ActiveItemChanged);
 5639        let active_entry = self.active_project_path(cx);
 5640        self.project.update(cx, |project, cx| {
 5641            project.set_active_path(active_entry.clone(), cx)
 5642        });
 5643
 5644        if focus_changed && let Some(project_path) = &active_entry {
 5645            let git_store_entity = self.project.read(cx).git_store().clone();
 5646            git_store_entity.update(cx, |git_store, cx| {
 5647                git_store.set_active_repo_for_path(project_path, cx);
 5648            });
 5649        }
 5650
 5651        self.update_window_title(window, cx);
 5652    }
 5653
 5654    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5655        let project = self.project().read(cx);
 5656        let mut title = String::new();
 5657
 5658        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5659            let name = {
 5660                let settings_location = SettingsLocation {
 5661                    worktree_id: worktree.read(cx).id(),
 5662                    path: RelPath::empty(),
 5663                };
 5664
 5665                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5666                match &settings.project_name {
 5667                    Some(name) => name.as_str(),
 5668                    None => worktree.read(cx).root_name_str(),
 5669                }
 5670            };
 5671            if i > 0 {
 5672                title.push_str(", ");
 5673            }
 5674            title.push_str(name);
 5675        }
 5676
 5677        if title.is_empty() {
 5678            title = "empty project".to_string();
 5679        }
 5680
 5681        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5682            let filename = path.path.file_name().or_else(|| {
 5683                Some(
 5684                    project
 5685                        .worktree_for_id(path.worktree_id, cx)?
 5686                        .read(cx)
 5687                        .root_name_str(),
 5688                )
 5689            });
 5690
 5691            if let Some(filename) = filename {
 5692                title.push_str("");
 5693                title.push_str(filename.as_ref());
 5694            }
 5695        }
 5696
 5697        if project.is_via_collab() {
 5698            title.push_str("");
 5699        } else if project.is_shared() {
 5700            title.push_str("");
 5701        }
 5702
 5703        if let Some(last_title) = self.last_window_title.as_ref()
 5704            && &title == last_title
 5705        {
 5706            return;
 5707        }
 5708        window.set_window_title(&title);
 5709        SystemWindowTabController::update_tab_title(
 5710            cx,
 5711            window.window_handle().window_id(),
 5712            SharedString::from(&title),
 5713        );
 5714        self.last_window_title = Some(title);
 5715    }
 5716
 5717    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5718        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5719        if is_edited != self.window_edited {
 5720            self.window_edited = is_edited;
 5721            window.set_window_edited(self.window_edited)
 5722        }
 5723    }
 5724
 5725    fn update_item_dirty_state(
 5726        &mut self,
 5727        item: &dyn ItemHandle,
 5728        window: &mut Window,
 5729        cx: &mut App,
 5730    ) {
 5731        let is_dirty = item.is_dirty(cx);
 5732        let item_id = item.item_id();
 5733        let was_dirty = self.dirty_items.contains_key(&item_id);
 5734        if is_dirty == was_dirty {
 5735            return;
 5736        }
 5737        if was_dirty {
 5738            self.dirty_items.remove(&item_id);
 5739            self.update_window_edited(window, cx);
 5740            return;
 5741        }
 5742
 5743        let workspace = self.weak_handle();
 5744        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5745            return;
 5746        };
 5747        let on_release_callback = Box::new(move |cx: &mut App| {
 5748            window_handle
 5749                .update(cx, |_, window, cx| {
 5750                    workspace
 5751                        .update(cx, |workspace, cx| {
 5752                            workspace.dirty_items.remove(&item_id);
 5753                            workspace.update_window_edited(window, cx)
 5754                        })
 5755                        .ok();
 5756                })
 5757                .ok();
 5758        });
 5759
 5760        let s = item.on_release(cx, on_release_callback);
 5761        self.dirty_items.insert(item_id, s);
 5762        self.update_window_edited(window, cx);
 5763    }
 5764
 5765    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5766        if self.notifications.is_empty() {
 5767            None
 5768        } else {
 5769            Some(
 5770                div()
 5771                    .absolute()
 5772                    .right_3()
 5773                    .bottom_3()
 5774                    .w_112()
 5775                    .h_full()
 5776                    .flex()
 5777                    .flex_col()
 5778                    .justify_end()
 5779                    .gap_2()
 5780                    .children(
 5781                        self.notifications
 5782                            .iter()
 5783                            .map(|(_, notification)| notification.clone().into_any()),
 5784                    ),
 5785            )
 5786        }
 5787    }
 5788
 5789    // RPC handlers
 5790
 5791    fn active_view_for_follower(
 5792        &self,
 5793        follower_project_id: Option<u64>,
 5794        window: &mut Window,
 5795        cx: &mut Context<Self>,
 5796    ) -> Option<proto::View> {
 5797        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5798        let item = item?;
 5799        let leader_id = self
 5800            .pane_for(&*item)
 5801            .and_then(|pane| self.leader_for_pane(&pane));
 5802        let leader_peer_id = match leader_id {
 5803            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5804            Some(CollaboratorId::Agent) | None => None,
 5805        };
 5806
 5807        let item_handle = item.to_followable_item_handle(cx)?;
 5808        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5809        let variant = item_handle.to_state_proto(window, cx)?;
 5810
 5811        if item_handle.is_project_item(window, cx)
 5812            && (follower_project_id.is_none()
 5813                || follower_project_id != self.project.read(cx).remote_id())
 5814        {
 5815            return None;
 5816        }
 5817
 5818        Some(proto::View {
 5819            id: id.to_proto(),
 5820            leader_id: leader_peer_id,
 5821            variant: Some(variant),
 5822            panel_id: panel_id.map(|id| id as i32),
 5823        })
 5824    }
 5825
 5826    fn handle_follow(
 5827        &mut self,
 5828        follower_project_id: Option<u64>,
 5829        window: &mut Window,
 5830        cx: &mut Context<Self>,
 5831    ) -> proto::FollowResponse {
 5832        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5833
 5834        cx.notify();
 5835        proto::FollowResponse {
 5836            views: active_view.iter().cloned().collect(),
 5837            active_view,
 5838        }
 5839    }
 5840
 5841    fn handle_update_followers(
 5842        &mut self,
 5843        leader_id: PeerId,
 5844        message: proto::UpdateFollowers,
 5845        _window: &mut Window,
 5846        _cx: &mut Context<Self>,
 5847    ) {
 5848        self.leader_updates_tx
 5849            .unbounded_send((leader_id, message))
 5850            .ok();
 5851    }
 5852
 5853    async fn process_leader_update(
 5854        this: &WeakEntity<Self>,
 5855        leader_id: PeerId,
 5856        update: proto::UpdateFollowers,
 5857        cx: &mut AsyncWindowContext,
 5858    ) -> Result<()> {
 5859        match update.variant.context("invalid update")? {
 5860            proto::update_followers::Variant::CreateView(view) => {
 5861                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5862                let should_add_view = this.update(cx, |this, _| {
 5863                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5864                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5865                    } else {
 5866                        anyhow::Ok(false)
 5867                    }
 5868                })??;
 5869
 5870                if should_add_view {
 5871                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5872                }
 5873            }
 5874            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5875                let should_add_view = this.update(cx, |this, _| {
 5876                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5877                        state.active_view_id = update_active_view
 5878                            .view
 5879                            .as_ref()
 5880                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5881
 5882                        if state.active_view_id.is_some_and(|view_id| {
 5883                            !state.items_by_leader_view_id.contains_key(&view_id)
 5884                        }) {
 5885                            anyhow::Ok(true)
 5886                        } else {
 5887                            anyhow::Ok(false)
 5888                        }
 5889                    } else {
 5890                        anyhow::Ok(false)
 5891                    }
 5892                })??;
 5893
 5894                if should_add_view && let Some(view) = update_active_view.view {
 5895                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5896                }
 5897            }
 5898            proto::update_followers::Variant::UpdateView(update_view) => {
 5899                let variant = update_view.variant.context("missing update view variant")?;
 5900                let id = update_view.id.context("missing update view id")?;
 5901                let mut tasks = Vec::new();
 5902                this.update_in(cx, |this, window, cx| {
 5903                    let project = this.project.clone();
 5904                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5905                        let view_id = ViewId::from_proto(id.clone())?;
 5906                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5907                            tasks.push(item.view.apply_update_proto(
 5908                                &project,
 5909                                variant.clone(),
 5910                                window,
 5911                                cx,
 5912                            ));
 5913                        }
 5914                    }
 5915                    anyhow::Ok(())
 5916                })??;
 5917                try_join_all(tasks).await.log_err();
 5918            }
 5919        }
 5920        this.update_in(cx, |this, window, cx| {
 5921            this.leader_updated(leader_id, window, cx)
 5922        })?;
 5923        Ok(())
 5924    }
 5925
 5926    async fn add_view_from_leader(
 5927        this: WeakEntity<Self>,
 5928        leader_id: PeerId,
 5929        view: &proto::View,
 5930        cx: &mut AsyncWindowContext,
 5931    ) -> Result<()> {
 5932        let this = this.upgrade().context("workspace dropped")?;
 5933
 5934        let Some(id) = view.id.clone() else {
 5935            anyhow::bail!("no id for view");
 5936        };
 5937        let id = ViewId::from_proto(id)?;
 5938        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5939
 5940        let pane = this.update(cx, |this, _cx| {
 5941            let state = this
 5942                .follower_states
 5943                .get(&leader_id.into())
 5944                .context("stopped following")?;
 5945            anyhow::Ok(state.pane().clone())
 5946        })?;
 5947        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5948            let client = this.read(cx).client().clone();
 5949            pane.items().find_map(|item| {
 5950                let item = item.to_followable_item_handle(cx)?;
 5951                if item.remote_id(&client, window, cx) == Some(id) {
 5952                    Some(item)
 5953                } else {
 5954                    None
 5955                }
 5956            })
 5957        })?;
 5958        let item = if let Some(existing_item) = existing_item {
 5959            existing_item
 5960        } else {
 5961            let variant = view.variant.clone();
 5962            anyhow::ensure!(variant.is_some(), "missing view variant");
 5963
 5964            let task = cx.update(|window, cx| {
 5965                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5966            })?;
 5967
 5968            let Some(task) = task else {
 5969                anyhow::bail!(
 5970                    "failed to construct view from leader (maybe from a different version of zed?)"
 5971                );
 5972            };
 5973
 5974            let mut new_item = task.await?;
 5975            pane.update_in(cx, |pane, window, cx| {
 5976                let mut item_to_remove = None;
 5977                for (ix, item) in pane.items().enumerate() {
 5978                    if let Some(item) = item.to_followable_item_handle(cx) {
 5979                        match new_item.dedup(item.as_ref(), window, cx) {
 5980                            Some(item::Dedup::KeepExisting) => {
 5981                                new_item =
 5982                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5983                                break;
 5984                            }
 5985                            Some(item::Dedup::ReplaceExisting) => {
 5986                                item_to_remove = Some((ix, item.item_id()));
 5987                                break;
 5988                            }
 5989                            None => {}
 5990                        }
 5991                    }
 5992                }
 5993
 5994                if let Some((ix, id)) = item_to_remove {
 5995                    pane.remove_item(id, false, false, window, cx);
 5996                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5997                }
 5998            })?;
 5999
 6000            new_item
 6001        };
 6002
 6003        this.update_in(cx, |this, window, cx| {
 6004            let state = this.follower_states.get_mut(&leader_id.into())?;
 6005            item.set_leader_id(Some(leader_id.into()), window, cx);
 6006            state.items_by_leader_view_id.insert(
 6007                id,
 6008                FollowerView {
 6009                    view: item,
 6010                    location: panel_id,
 6011                },
 6012            );
 6013
 6014            Some(())
 6015        })
 6016        .context("no follower state")?;
 6017
 6018        Ok(())
 6019    }
 6020
 6021    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6022        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 6023            return;
 6024        };
 6025
 6026        if let Some(agent_location) = self.project.read(cx).agent_location() {
 6027            let buffer_entity_id = agent_location.buffer.entity_id();
 6028            let view_id = ViewId {
 6029                creator: CollaboratorId::Agent,
 6030                id: buffer_entity_id.as_u64(),
 6031            };
 6032            follower_state.active_view_id = Some(view_id);
 6033
 6034            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 6035                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 6036                hash_map::Entry::Vacant(entry) => {
 6037                    let existing_view =
 6038                        follower_state
 6039                            .center_pane
 6040                            .read(cx)
 6041                            .items()
 6042                            .find_map(|item| {
 6043                                let item = item.to_followable_item_handle(cx)?;
 6044                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 6045                                    && item.project_item_model_ids(cx).as_slice()
 6046                                        == [buffer_entity_id]
 6047                                {
 6048                                    Some(item)
 6049                                } else {
 6050                                    None
 6051                                }
 6052                            });
 6053                    let view = existing_view.or_else(|| {
 6054                        agent_location.buffer.upgrade().and_then(|buffer| {
 6055                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 6056                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 6057                            })?
 6058                            .to_followable_item_handle(cx)
 6059                        })
 6060                    });
 6061
 6062                    view.map(|view| {
 6063                        entry.insert(FollowerView {
 6064                            view,
 6065                            location: None,
 6066                        })
 6067                    })
 6068                }
 6069            };
 6070
 6071            if let Some(item) = item {
 6072                item.view
 6073                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 6074                item.view
 6075                    .update_agent_location(agent_location.position, window, cx);
 6076            }
 6077        } else {
 6078            follower_state.active_view_id = None;
 6079        }
 6080
 6081        self.leader_updated(CollaboratorId::Agent, window, cx);
 6082    }
 6083
 6084    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 6085        let mut is_project_item = true;
 6086        let mut update = proto::UpdateActiveView::default();
 6087        if window.is_window_active() {
 6088            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 6089
 6090            if let Some(item) = active_item
 6091                && item.item_focus_handle(cx).contains_focused(window, cx)
 6092            {
 6093                let leader_id = self
 6094                    .pane_for(&*item)
 6095                    .and_then(|pane| self.leader_for_pane(&pane));
 6096                let leader_peer_id = match leader_id {
 6097                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 6098                    Some(CollaboratorId::Agent) | None => None,
 6099                };
 6100
 6101                if let Some(item) = item.to_followable_item_handle(cx) {
 6102                    let id = item
 6103                        .remote_id(&self.app_state.client, window, cx)
 6104                        .map(|id| id.to_proto());
 6105
 6106                    if let Some(id) = id
 6107                        && let Some(variant) = item.to_state_proto(window, cx)
 6108                    {
 6109                        let view = Some(proto::View {
 6110                            id,
 6111                            leader_id: leader_peer_id,
 6112                            variant: Some(variant),
 6113                            panel_id: panel_id.map(|id| id as i32),
 6114                        });
 6115
 6116                        is_project_item = item.is_project_item(window, cx);
 6117                        update = proto::UpdateActiveView { view };
 6118                    };
 6119                }
 6120            }
 6121        }
 6122
 6123        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 6124        if active_view_id != self.last_active_view_id.as_ref() {
 6125            self.last_active_view_id = active_view_id.cloned();
 6126            self.update_followers(
 6127                is_project_item,
 6128                proto::update_followers::Variant::UpdateActiveView(update),
 6129                window,
 6130                cx,
 6131            );
 6132        }
 6133    }
 6134
 6135    fn active_item_for_followers(
 6136        &self,
 6137        window: &mut Window,
 6138        cx: &mut App,
 6139    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 6140        let mut active_item = None;
 6141        let mut panel_id = None;
 6142        for dock in self.all_docks() {
 6143            if dock.focus_handle(cx).contains_focused(window, cx)
 6144                && let Some(panel) = dock.read(cx).active_panel()
 6145                && let Some(pane) = panel.pane(cx)
 6146                && let Some(item) = pane.read(cx).active_item()
 6147            {
 6148                active_item = Some(item);
 6149                panel_id = panel.remote_id();
 6150                break;
 6151            }
 6152        }
 6153
 6154        if active_item.is_none() {
 6155            active_item = self.active_pane().read(cx).active_item();
 6156        }
 6157        (active_item, panel_id)
 6158    }
 6159
 6160    fn update_followers(
 6161        &self,
 6162        project_only: bool,
 6163        update: proto::update_followers::Variant,
 6164        _: &mut Window,
 6165        cx: &mut App,
 6166    ) -> Option<()> {
 6167        // If this update only applies to for followers in the current project,
 6168        // then skip it unless this project is shared. If it applies to all
 6169        // followers, regardless of project, then set `project_id` to none,
 6170        // indicating that it goes to all followers.
 6171        let project_id = if project_only {
 6172            Some(self.project.read(cx).remote_id()?)
 6173        } else {
 6174            None
 6175        };
 6176        self.app_state().workspace_store.update(cx, |store, cx| {
 6177            store.update_followers(project_id, update, cx)
 6178        })
 6179    }
 6180
 6181    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6182        self.follower_states.iter().find_map(|(leader_id, state)| {
 6183            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6184                Some(*leader_id)
 6185            } else {
 6186                None
 6187            }
 6188        })
 6189    }
 6190
 6191    fn leader_updated(
 6192        &mut self,
 6193        leader_id: impl Into<CollaboratorId>,
 6194        window: &mut Window,
 6195        cx: &mut Context<Self>,
 6196    ) -> Option<Box<dyn ItemHandle>> {
 6197        cx.notify();
 6198
 6199        let leader_id = leader_id.into();
 6200        let (panel_id, item) = match leader_id {
 6201            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6202            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6203        };
 6204
 6205        let state = self.follower_states.get(&leader_id)?;
 6206        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6207        let pane;
 6208        if let Some(panel_id) = panel_id {
 6209            pane = self
 6210                .activate_panel_for_proto_id(panel_id, window, cx)?
 6211                .pane(cx)?;
 6212            let state = self.follower_states.get_mut(&leader_id)?;
 6213            state.dock_pane = Some(pane.clone());
 6214        } else {
 6215            pane = state.center_pane.clone();
 6216            let state = self.follower_states.get_mut(&leader_id)?;
 6217            if let Some(dock_pane) = state.dock_pane.take() {
 6218                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6219            }
 6220        }
 6221
 6222        pane.update(cx, |pane, cx| {
 6223            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6224            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6225                pane.activate_item(index, false, false, window, cx);
 6226            } else {
 6227                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6228            }
 6229
 6230            if focus_active_item {
 6231                pane.focus_active_item(window, cx)
 6232            }
 6233        });
 6234
 6235        Some(item)
 6236    }
 6237
 6238    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6239        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6240        let active_view_id = state.active_view_id?;
 6241        Some(
 6242            state
 6243                .items_by_leader_view_id
 6244                .get(&active_view_id)?
 6245                .view
 6246                .boxed_clone(),
 6247        )
 6248    }
 6249
 6250    fn active_item_for_peer(
 6251        &self,
 6252        peer_id: PeerId,
 6253        window: &mut Window,
 6254        cx: &mut Context<Self>,
 6255    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6256        let call = self.active_call()?;
 6257        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6258        let leader_in_this_app;
 6259        let leader_in_this_project;
 6260        match participant.location {
 6261            ParticipantLocation::SharedProject { project_id } => {
 6262                leader_in_this_app = true;
 6263                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6264            }
 6265            ParticipantLocation::UnsharedProject => {
 6266                leader_in_this_app = true;
 6267                leader_in_this_project = false;
 6268            }
 6269            ParticipantLocation::External => {
 6270                leader_in_this_app = false;
 6271                leader_in_this_project = false;
 6272            }
 6273        };
 6274        let state = self.follower_states.get(&peer_id.into())?;
 6275        let mut item_to_activate = None;
 6276        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6277            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6278                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6279            {
 6280                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6281            }
 6282        } else if let Some(shared_screen) =
 6283            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6284        {
 6285            item_to_activate = Some((None, Box::new(shared_screen)));
 6286        }
 6287        item_to_activate
 6288    }
 6289
 6290    fn shared_screen_for_peer(
 6291        &self,
 6292        peer_id: PeerId,
 6293        pane: &Entity<Pane>,
 6294        window: &mut Window,
 6295        cx: &mut App,
 6296    ) -> Option<Entity<SharedScreen>> {
 6297        self.active_call()?
 6298            .create_shared_screen(peer_id, pane, window, cx)
 6299    }
 6300
 6301    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6302        if window.is_window_active() {
 6303            self.update_active_view_for_followers(window, cx);
 6304
 6305            if let Some(database_id) = self.database_id {
 6306                let db = WorkspaceDb::global(cx);
 6307                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6308                    .detach();
 6309            }
 6310        } else {
 6311            for pane in &self.panes {
 6312                pane.update(cx, |pane, cx| {
 6313                    if let Some(item) = pane.active_item() {
 6314                        item.workspace_deactivated(window, cx);
 6315                    }
 6316                    for item in pane.items() {
 6317                        if matches!(
 6318                            item.workspace_settings(cx).autosave,
 6319                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6320                        ) {
 6321                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6322                                .detach_and_log_err(cx);
 6323                        }
 6324                    }
 6325                });
 6326            }
 6327        }
 6328    }
 6329
 6330    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6331        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6332    }
 6333
 6334    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6335        self.active_call.as_ref().map(|(call, _)| call.clone())
 6336    }
 6337
 6338    fn on_active_call_event(
 6339        &mut self,
 6340        event: &ActiveCallEvent,
 6341        window: &mut Window,
 6342        cx: &mut Context<Self>,
 6343    ) {
 6344        match event {
 6345            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6346            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6347                self.leader_updated(participant_id, window, cx);
 6348            }
 6349        }
 6350    }
 6351
 6352    pub fn database_id(&self) -> Option<WorkspaceId> {
 6353        self.database_id
 6354    }
 6355
 6356    #[cfg(any(test, feature = "test-support"))]
 6357    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6358        self.database_id = Some(id);
 6359    }
 6360
 6361    pub fn session_id(&self) -> Option<String> {
 6362        self.session_id.clone()
 6363    }
 6364
 6365    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6366        let Some(display) = window.display(cx) else {
 6367            return Task::ready(());
 6368        };
 6369        let Ok(display_uuid) = display.uuid() else {
 6370            return Task::ready(());
 6371        };
 6372
 6373        let window_bounds = window.inner_window_bounds();
 6374        let database_id = self.database_id;
 6375        let has_paths = !self.root_paths(cx).is_empty();
 6376        let db = WorkspaceDb::global(cx);
 6377        let kvp = db::kvp::KeyValueStore::global(cx);
 6378
 6379        cx.background_executor().spawn(async move {
 6380            if !has_paths {
 6381                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6382                    .await
 6383                    .log_err();
 6384            }
 6385            if let Some(database_id) = database_id {
 6386                db.set_window_open_status(
 6387                    database_id,
 6388                    SerializedWindowBounds(window_bounds),
 6389                    display_uuid,
 6390                )
 6391                .await
 6392                .log_err();
 6393            } else {
 6394                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6395                    .await
 6396                    .log_err();
 6397            }
 6398        })
 6399    }
 6400
 6401    /// Bypass the 200ms serialization throttle and write workspace state to
 6402    /// the DB immediately. Returns a task the caller can await to ensure the
 6403    /// write completes. Used by the quit handler so the most recent state
 6404    /// isn't lost to a pending throttle timer when the process exits.
 6405    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6406        self._schedule_serialize_workspace.take();
 6407        self._serialize_workspace_task.take();
 6408        self.bounds_save_task_queued.take();
 6409
 6410        let bounds_task = self.save_window_bounds(window, cx);
 6411        let serialize_task = self.serialize_workspace_internal(window, cx);
 6412        cx.spawn(async move |_| {
 6413            bounds_task.await;
 6414            serialize_task.await;
 6415        })
 6416    }
 6417
 6418    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6419        let project = self.project().read(cx);
 6420        project
 6421            .visible_worktrees(cx)
 6422            .map(|worktree| worktree.read(cx).abs_path())
 6423            .collect::<Vec<_>>()
 6424    }
 6425
 6426    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6427        match member {
 6428            Member::Axis(PaneAxis { members, .. }) => {
 6429                for child in members.iter() {
 6430                    self.remove_panes(child.clone(), window, cx)
 6431                }
 6432            }
 6433            Member::Pane(pane) => {
 6434                self.force_remove_pane(&pane, &None, window, cx);
 6435            }
 6436        }
 6437    }
 6438
 6439    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6440        self.session_id.take();
 6441        self.serialize_workspace_internal(window, cx)
 6442    }
 6443
 6444    fn force_remove_pane(
 6445        &mut self,
 6446        pane: &Entity<Pane>,
 6447        focus_on: &Option<Entity<Pane>>,
 6448        window: &mut Window,
 6449        cx: &mut Context<Workspace>,
 6450    ) {
 6451        self.panes.retain(|p| p != pane);
 6452        if let Some(focus_on) = focus_on {
 6453            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6454        } else if self.active_pane() == pane {
 6455            self.panes
 6456                .last()
 6457                .unwrap()
 6458                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6459        }
 6460        if self.last_active_center_pane == Some(pane.downgrade()) {
 6461            self.last_active_center_pane = None;
 6462        }
 6463        cx.notify();
 6464    }
 6465
 6466    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6467        if self._schedule_serialize_workspace.is_none() {
 6468            self._schedule_serialize_workspace =
 6469                Some(cx.spawn_in(window, async move |this, cx| {
 6470                    cx.background_executor()
 6471                        .timer(SERIALIZATION_THROTTLE_TIME)
 6472                        .await;
 6473                    this.update_in(cx, |this, window, cx| {
 6474                        this._serialize_workspace_task =
 6475                            Some(this.serialize_workspace_internal(window, cx));
 6476                        this._schedule_serialize_workspace.take();
 6477                    })
 6478                    .log_err();
 6479                }));
 6480        }
 6481    }
 6482
 6483    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6484        let Some(database_id) = self.database_id() else {
 6485            return Task::ready(());
 6486        };
 6487
 6488        fn serialize_pane_handle(
 6489            pane_handle: &Entity<Pane>,
 6490            window: &mut Window,
 6491            cx: &mut App,
 6492        ) -> SerializedPane {
 6493            let (items, active, pinned_count) = {
 6494                let pane = pane_handle.read(cx);
 6495                let active_item_id = pane.active_item().map(|item| item.item_id());
 6496                (
 6497                    pane.items()
 6498                        .filter_map(|handle| {
 6499                            let handle = handle.to_serializable_item_handle(cx)?;
 6500
 6501                            Some(SerializedItem {
 6502                                kind: Arc::from(handle.serialized_item_kind()),
 6503                                item_id: handle.item_id().as_u64(),
 6504                                active: Some(handle.item_id()) == active_item_id,
 6505                                preview: pane.is_active_preview_item(handle.item_id()),
 6506                            })
 6507                        })
 6508                        .collect::<Vec<_>>(),
 6509                    pane.has_focus(window, cx),
 6510                    pane.pinned_count(),
 6511                )
 6512            };
 6513
 6514            SerializedPane::new(items, active, pinned_count)
 6515        }
 6516
 6517        fn build_serialized_pane_group(
 6518            pane_group: &Member,
 6519            window: &mut Window,
 6520            cx: &mut App,
 6521        ) -> SerializedPaneGroup {
 6522            match pane_group {
 6523                Member::Axis(PaneAxis {
 6524                    axis,
 6525                    members,
 6526                    flexes,
 6527                    bounding_boxes: _,
 6528                }) => SerializedPaneGroup::Group {
 6529                    axis: SerializedAxis(*axis),
 6530                    children: members
 6531                        .iter()
 6532                        .map(|member| build_serialized_pane_group(member, window, cx))
 6533                        .collect::<Vec<_>>(),
 6534                    flexes: Some(flexes.lock().clone()),
 6535                },
 6536                Member::Pane(pane_handle) => {
 6537                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6538                }
 6539            }
 6540        }
 6541
 6542        fn build_serialized_docks(
 6543            this: &Workspace,
 6544            window: &mut Window,
 6545            cx: &mut App,
 6546        ) -> DockStructure {
 6547            this.capture_dock_state(window, cx)
 6548        }
 6549
 6550        match self.workspace_location(cx) {
 6551            WorkspaceLocation::Location(location, paths) => {
 6552                let breakpoints = self.project.update(cx, |project, cx| {
 6553                    project
 6554                        .breakpoint_store()
 6555                        .read(cx)
 6556                        .all_source_breakpoints(cx)
 6557                });
 6558                let user_toolchains = self
 6559                    .project
 6560                    .read(cx)
 6561                    .user_toolchains(cx)
 6562                    .unwrap_or_default();
 6563
 6564                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6565                let docks = build_serialized_docks(self, window, cx);
 6566                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6567
 6568                let serialized_workspace = SerializedWorkspace {
 6569                    id: database_id,
 6570                    location,
 6571                    paths,
 6572                    center_group,
 6573                    window_bounds,
 6574                    display: Default::default(),
 6575                    docks,
 6576                    centered_layout: self.centered_layout,
 6577                    session_id: self.session_id.clone(),
 6578                    breakpoints,
 6579                    window_id: Some(window.window_handle().window_id().as_u64()),
 6580                    user_toolchains,
 6581                };
 6582
 6583                let db = WorkspaceDb::global(cx);
 6584                window.spawn(cx, async move |_| {
 6585                    db.save_workspace(serialized_workspace).await;
 6586                })
 6587            }
 6588            WorkspaceLocation::DetachFromSession => {
 6589                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6590                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6591                // Save dock state for empty local workspaces
 6592                let docks = build_serialized_docks(self, window, cx);
 6593                let db = WorkspaceDb::global(cx);
 6594                let kvp = db::kvp::KeyValueStore::global(cx);
 6595                window.spawn(cx, async move |_| {
 6596                    db.set_window_open_status(
 6597                        database_id,
 6598                        window_bounds,
 6599                        display.unwrap_or_default(),
 6600                    )
 6601                    .await
 6602                    .log_err();
 6603                    db.set_session_id(database_id, None).await.log_err();
 6604                    persistence::write_default_dock_state(&kvp, docks)
 6605                        .await
 6606                        .log_err();
 6607                })
 6608            }
 6609            WorkspaceLocation::None => {
 6610                // Save dock state for empty non-local workspaces
 6611                let docks = build_serialized_docks(self, window, cx);
 6612                let kvp = db::kvp::KeyValueStore::global(cx);
 6613                window.spawn(cx, async move |_| {
 6614                    persistence::write_default_dock_state(&kvp, docks)
 6615                        .await
 6616                        .log_err();
 6617                })
 6618            }
 6619        }
 6620    }
 6621
 6622    fn has_any_items_open(&self, cx: &App) -> bool {
 6623        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6624    }
 6625
 6626    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6627        let paths = PathList::new(&self.root_paths(cx));
 6628        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6629            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6630        } else if self.project.read(cx).is_local() {
 6631            if !paths.is_empty() || self.has_any_items_open(cx) {
 6632                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6633            } else {
 6634                WorkspaceLocation::DetachFromSession
 6635            }
 6636        } else {
 6637            WorkspaceLocation::None
 6638        }
 6639    }
 6640
 6641    fn update_history(&self, cx: &mut App) {
 6642        let Some(id) = self.database_id() else {
 6643            return;
 6644        };
 6645        if !self.project.read(cx).is_local() {
 6646            return;
 6647        }
 6648        if let Some(manager) = HistoryManager::global(cx) {
 6649            let paths = PathList::new(&self.root_paths(cx));
 6650            manager.update(cx, |this, cx| {
 6651                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6652            });
 6653        }
 6654    }
 6655
 6656    async fn serialize_items(
 6657        this: &WeakEntity<Self>,
 6658        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6659        cx: &mut AsyncWindowContext,
 6660    ) -> Result<()> {
 6661        const CHUNK_SIZE: usize = 200;
 6662
 6663        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6664
 6665        while let Some(items_received) = serializable_items.next().await {
 6666            let unique_items =
 6667                items_received
 6668                    .into_iter()
 6669                    .fold(HashMap::default(), |mut acc, item| {
 6670                        acc.entry(item.item_id()).or_insert(item);
 6671                        acc
 6672                    });
 6673
 6674            // We use into_iter() here so that the references to the items are moved into
 6675            // the tasks and not kept alive while we're sleeping.
 6676            for (_, item) in unique_items.into_iter() {
 6677                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6678                    item.serialize(workspace, false, window, cx)
 6679                }) {
 6680                    cx.background_spawn(async move { task.await.log_err() })
 6681                        .detach();
 6682                }
 6683            }
 6684
 6685            cx.background_executor()
 6686                .timer(SERIALIZATION_THROTTLE_TIME)
 6687                .await;
 6688        }
 6689
 6690        Ok(())
 6691    }
 6692
 6693    pub(crate) fn enqueue_item_serialization(
 6694        &mut self,
 6695        item: Box<dyn SerializableItemHandle>,
 6696    ) -> Result<()> {
 6697        self.serializable_items_tx
 6698            .unbounded_send(item)
 6699            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6700    }
 6701
 6702    pub(crate) fn load_workspace(
 6703        serialized_workspace: SerializedWorkspace,
 6704        paths_to_open: Vec<Option<ProjectPath>>,
 6705        window: &mut Window,
 6706        cx: &mut Context<Workspace>,
 6707    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6708        cx.spawn_in(window, async move |workspace, cx| {
 6709            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6710
 6711            let mut center_group = None;
 6712            let mut center_items = None;
 6713
 6714            // Traverse the splits tree and add to things
 6715            if let Some((group, active_pane, items)) = serialized_workspace
 6716                .center_group
 6717                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6718                .await
 6719            {
 6720                center_items = Some(items);
 6721                center_group = Some((group, active_pane))
 6722            }
 6723
 6724            let mut items_by_project_path = HashMap::default();
 6725            let mut item_ids_by_kind = HashMap::default();
 6726            let mut all_deserialized_items = Vec::default();
 6727            cx.update(|_, cx| {
 6728                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6729                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6730                        item_ids_by_kind
 6731                            .entry(serializable_item_handle.serialized_item_kind())
 6732                            .or_insert(Vec::new())
 6733                            .push(item.item_id().as_u64() as ItemId);
 6734                    }
 6735
 6736                    if let Some(project_path) = item.project_path(cx) {
 6737                        items_by_project_path.insert(project_path, item.clone());
 6738                    }
 6739                    all_deserialized_items.push(item);
 6740                }
 6741            })?;
 6742
 6743            let opened_items = paths_to_open
 6744                .into_iter()
 6745                .map(|path_to_open| {
 6746                    path_to_open
 6747                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6748                })
 6749                .collect::<Vec<_>>();
 6750
 6751            // Remove old panes from workspace panes list
 6752            workspace.update_in(cx, |workspace, window, cx| {
 6753                if let Some((center_group, active_pane)) = center_group {
 6754                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6755
 6756                    // Swap workspace center group
 6757                    workspace.center = PaneGroup::with_root(center_group);
 6758                    workspace.center.set_is_center(true);
 6759                    workspace.center.mark_positions(cx);
 6760
 6761                    if let Some(active_pane) = active_pane {
 6762                        workspace.set_active_pane(&active_pane, window, cx);
 6763                        cx.focus_self(window);
 6764                    } else {
 6765                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6766                    }
 6767                }
 6768
 6769                let docks = serialized_workspace.docks;
 6770
 6771                for (dock, serialized_dock) in [
 6772                    (&mut workspace.right_dock, docks.right),
 6773                    (&mut workspace.left_dock, docks.left),
 6774                    (&mut workspace.bottom_dock, docks.bottom),
 6775                ]
 6776                .iter_mut()
 6777                {
 6778                    dock.update(cx, |dock, cx| {
 6779                        dock.serialized_dock = Some(serialized_dock.clone());
 6780                        dock.restore_state(window, cx);
 6781                    });
 6782                }
 6783
 6784                cx.notify();
 6785            })?;
 6786
 6787            let _ = project
 6788                .update(cx, |project, cx| {
 6789                    project
 6790                        .breakpoint_store()
 6791                        .update(cx, |breakpoint_store, cx| {
 6792                            breakpoint_store
 6793                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6794                        })
 6795                })
 6796                .await;
 6797
 6798            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6799            // after loading the items, we might have different items and in order to avoid
 6800            // the database filling up, we delete items that haven't been loaded now.
 6801            //
 6802            // The items that have been loaded, have been saved after they've been added to the workspace.
 6803            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6804                item_ids_by_kind
 6805                    .into_iter()
 6806                    .map(|(item_kind, loaded_items)| {
 6807                        SerializableItemRegistry::cleanup(
 6808                            item_kind,
 6809                            serialized_workspace.id,
 6810                            loaded_items,
 6811                            window,
 6812                            cx,
 6813                        )
 6814                        .log_err()
 6815                    })
 6816                    .collect::<Vec<_>>()
 6817            })?;
 6818
 6819            futures::future::join_all(clean_up_tasks).await;
 6820
 6821            workspace
 6822                .update_in(cx, |workspace, window, cx| {
 6823                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6824                    workspace.serialize_workspace_internal(window, cx).detach();
 6825
 6826                    // Ensure that we mark the window as edited if we did load dirty items
 6827                    workspace.update_window_edited(window, cx);
 6828                })
 6829                .ok();
 6830
 6831            Ok(opened_items)
 6832        })
 6833    }
 6834
 6835    pub fn key_context(&self, cx: &App) -> KeyContext {
 6836        let mut context = KeyContext::new_with_defaults();
 6837        context.add("Workspace");
 6838        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6839        if let Some(status) = self
 6840            .debugger_provider
 6841            .as_ref()
 6842            .and_then(|provider| provider.active_thread_state(cx))
 6843        {
 6844            match status {
 6845                ThreadStatus::Running | ThreadStatus::Stepping => {
 6846                    context.add("debugger_running");
 6847                }
 6848                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6849                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6850            }
 6851        }
 6852
 6853        if self.left_dock.read(cx).is_open() {
 6854            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6855                context.set("left_dock", active_panel.panel_key());
 6856            }
 6857        }
 6858
 6859        if self.right_dock.read(cx).is_open() {
 6860            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6861                context.set("right_dock", active_panel.panel_key());
 6862            }
 6863        }
 6864
 6865        if self.bottom_dock.read(cx).is_open() {
 6866            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6867                context.set("bottom_dock", active_panel.panel_key());
 6868            }
 6869        }
 6870
 6871        context
 6872    }
 6873
 6874    /// Multiworkspace uses this to add workspace action handling to itself
 6875    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6876        self.add_workspace_actions_listeners(div, window, cx)
 6877            .on_action(cx.listener(
 6878                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6879                    for action in &action_sequence.0 {
 6880                        window.dispatch_action(action.boxed_clone(), cx);
 6881                    }
 6882                },
 6883            ))
 6884            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6885            .on_action(cx.listener(Self::close_all_items_and_panes))
 6886            .on_action(cx.listener(Self::close_item_in_all_panes))
 6887            .on_action(cx.listener(Self::save_all))
 6888            .on_action(cx.listener(Self::send_keystrokes))
 6889            .on_action(cx.listener(Self::add_folder_to_project))
 6890            .on_action(cx.listener(Self::follow_next_collaborator))
 6891            .on_action(cx.listener(Self::activate_pane_at_index))
 6892            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6893            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6894            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6895            .on_action(cx.listener(Self::toggle_theme_mode))
 6896            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6897                let pane = workspace.active_pane().clone();
 6898                workspace.unfollow_in_pane(&pane, window, cx);
 6899            }))
 6900            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6901                workspace
 6902                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6903                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6904            }))
 6905            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6906                workspace
 6907                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6908                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6909            }))
 6910            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6911                workspace
 6912                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6913                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6914            }))
 6915            .on_action(
 6916                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6917                    workspace.activate_previous_pane(window, cx)
 6918                }),
 6919            )
 6920            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6921                workspace.activate_next_pane(window, cx)
 6922            }))
 6923            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6924                workspace.activate_last_pane(window, cx)
 6925            }))
 6926            .on_action(
 6927                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6928                    workspace.activate_next_window(cx)
 6929                }),
 6930            )
 6931            .on_action(
 6932                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6933                    workspace.activate_previous_window(cx)
 6934                }),
 6935            )
 6936            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6937                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6938            }))
 6939            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6940                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6941            }))
 6942            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6943                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6944            }))
 6945            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6946                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6947            }))
 6948            .on_action(cx.listener(
 6949                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6950                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6951                },
 6952            ))
 6953            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6954                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6955            }))
 6956            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6957                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6958            }))
 6959            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6960                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6961            }))
 6962            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6963                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6964            }))
 6965            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6966                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6967                    SplitDirection::Down,
 6968                    SplitDirection::Up,
 6969                    SplitDirection::Right,
 6970                    SplitDirection::Left,
 6971                ];
 6972                for dir in DIRECTION_PRIORITY {
 6973                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6974                        workspace.swap_pane_in_direction(dir, cx);
 6975                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6976                        break;
 6977                    }
 6978                }
 6979            }))
 6980            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6981                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6982            }))
 6983            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6984                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6985            }))
 6986            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6987                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6988            }))
 6989            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6990                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6991            }))
 6992            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6993                this.toggle_dock(DockPosition::Left, window, cx);
 6994            }))
 6995            .on_action(cx.listener(
 6996                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6997                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6998                },
 6999            ))
 7000            .on_action(cx.listener(
 7001                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 7002                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 7003                },
 7004            ))
 7005            .on_action(cx.listener(
 7006                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 7007                    if !workspace.close_active_dock(window, cx) {
 7008                        cx.propagate();
 7009                    }
 7010                },
 7011            ))
 7012            .on_action(
 7013                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 7014                    workspace.close_all_docks(window, cx);
 7015                }),
 7016            )
 7017            .on_action(cx.listener(Self::toggle_all_docks))
 7018            .on_action(cx.listener(
 7019                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 7020                    workspace.clear_all_notifications(cx);
 7021                },
 7022            ))
 7023            .on_action(cx.listener(
 7024                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 7025                    workspace.clear_navigation_history(window, cx);
 7026                },
 7027            ))
 7028            .on_action(cx.listener(
 7029                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 7030                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 7031                        workspace.suppress_notification(&notification_id, cx);
 7032                    }
 7033                },
 7034            ))
 7035            .on_action(cx.listener(
 7036                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 7037                    workspace.show_worktree_trust_security_modal(true, window, cx);
 7038                },
 7039            ))
 7040            .on_action(
 7041                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 7042                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 7043                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 7044                            trusted_worktrees.clear_trusted_paths()
 7045                        });
 7046                        let db = WorkspaceDb::global(cx);
 7047                        cx.spawn(async move |_, cx| {
 7048                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 7049                                cx.update(|cx| reload(cx));
 7050                            }
 7051                        })
 7052                        .detach();
 7053                    }
 7054                }),
 7055            )
 7056            .on_action(cx.listener(
 7057                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 7058                    workspace.reopen_closed_item(window, cx).detach();
 7059                },
 7060            ))
 7061            .on_action(cx.listener(
 7062                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 7063                    for dock in workspace.all_docks() {
 7064                        if dock.focus_handle(cx).contains_focused(window, cx) {
 7065                            let panel = dock.read(cx).active_panel().cloned();
 7066                            if let Some(panel) = panel {
 7067                                dock.update(cx, |dock, cx| {
 7068                                    dock.set_panel_size_state(
 7069                                        panel.as_ref(),
 7070                                        dock::PanelSizeState::default(),
 7071                                        cx,
 7072                                    );
 7073                                });
 7074                            }
 7075                            return;
 7076                        }
 7077                    }
 7078                },
 7079            ))
 7080            .on_action(cx.listener(
 7081                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 7082                    for dock in workspace.all_docks() {
 7083                        let panel = dock.read(cx).visible_panel().cloned();
 7084                        if let Some(panel) = panel {
 7085                            dock.update(cx, |dock, cx| {
 7086                                dock.set_panel_size_state(
 7087                                    panel.as_ref(),
 7088                                    dock::PanelSizeState::default(),
 7089                                    cx,
 7090                                );
 7091                            });
 7092                        }
 7093                    }
 7094                },
 7095            ))
 7096            .on_action(cx.listener(
 7097                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 7098                    adjust_active_dock_size_by_px(
 7099                        px_with_ui_font_fallback(act.px, cx),
 7100                        workspace,
 7101                        window,
 7102                        cx,
 7103                    );
 7104                },
 7105            ))
 7106            .on_action(cx.listener(
 7107                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 7108                    adjust_active_dock_size_by_px(
 7109                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7110                        workspace,
 7111                        window,
 7112                        cx,
 7113                    );
 7114                },
 7115            ))
 7116            .on_action(cx.listener(
 7117                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 7118                    adjust_open_docks_size_by_px(
 7119                        px_with_ui_font_fallback(act.px, cx),
 7120                        workspace,
 7121                        window,
 7122                        cx,
 7123                    );
 7124                },
 7125            ))
 7126            .on_action(cx.listener(
 7127                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 7128                    adjust_open_docks_size_by_px(
 7129                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7130                        workspace,
 7131                        window,
 7132                        cx,
 7133                    );
 7134                },
 7135            ))
 7136            .on_action(cx.listener(Workspace::toggle_centered_layout))
 7137            .on_action(cx.listener(
 7138                |workspace: &mut Workspace, action: &pane::ActivateNextItem, window, cx| {
 7139                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7140                        let dock = active_dock.read(cx);
 7141                        if let Some(active_panel) = dock.active_panel() {
 7142                            if active_panel.pane(cx).is_none() {
 7143                                let mut recent_pane: Option<Entity<Pane>> = None;
 7144                                let mut recent_timestamp = 0;
 7145                                for pane_handle in workspace.panes() {
 7146                                    let pane = pane_handle.read(cx);
 7147                                    for entry in pane.activation_history() {
 7148                                        if entry.timestamp > recent_timestamp {
 7149                                            recent_timestamp = entry.timestamp;
 7150                                            recent_pane = Some(pane_handle.clone());
 7151                                        }
 7152                                    }
 7153                                }
 7154
 7155                                if let Some(pane) = recent_pane {
 7156                                    let wrap_around = action.wrap_around;
 7157                                    pane.update(cx, |pane, cx| {
 7158                                        let current_index = pane.active_item_index();
 7159                                        let items_len = pane.items_len();
 7160                                        if items_len > 0 {
 7161                                            let next_index = if current_index + 1 < items_len {
 7162                                                current_index + 1
 7163                                            } else if wrap_around {
 7164                                                0
 7165                                            } else {
 7166                                                return;
 7167                                            };
 7168                                            pane.activate_item(
 7169                                                next_index, false, false, window, cx,
 7170                                            );
 7171                                        }
 7172                                    });
 7173                                    return;
 7174                                }
 7175                            }
 7176                        }
 7177                    }
 7178                    cx.propagate();
 7179                },
 7180            ))
 7181            .on_action(cx.listener(
 7182                |workspace: &mut Workspace, action: &pane::ActivatePreviousItem, window, cx| {
 7183                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7184                        let dock = active_dock.read(cx);
 7185                        if let Some(active_panel) = dock.active_panel() {
 7186                            if active_panel.pane(cx).is_none() {
 7187                                let mut recent_pane: Option<Entity<Pane>> = None;
 7188                                let mut recent_timestamp = 0;
 7189                                for pane_handle in workspace.panes() {
 7190                                    let pane = pane_handle.read(cx);
 7191                                    for entry in pane.activation_history() {
 7192                                        if entry.timestamp > recent_timestamp {
 7193                                            recent_timestamp = entry.timestamp;
 7194                                            recent_pane = Some(pane_handle.clone());
 7195                                        }
 7196                                    }
 7197                                }
 7198
 7199                                if let Some(pane) = recent_pane {
 7200                                    let wrap_around = action.wrap_around;
 7201                                    pane.update(cx, |pane, cx| {
 7202                                        let current_index = pane.active_item_index();
 7203                                        let items_len = pane.items_len();
 7204                                        if items_len > 0 {
 7205                                            let prev_index = if current_index > 0 {
 7206                                                current_index - 1
 7207                                            } else if wrap_around {
 7208                                                items_len.saturating_sub(1)
 7209                                            } else {
 7210                                                return;
 7211                                            };
 7212                                            pane.activate_item(
 7213                                                prev_index, false, false, window, cx,
 7214                                            );
 7215                                        }
 7216                                    });
 7217                                    return;
 7218                                }
 7219                            }
 7220                        }
 7221                    }
 7222                    cx.propagate();
 7223                },
 7224            ))
 7225            .on_action(cx.listener(
 7226                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7227                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7228                        let dock = active_dock.read(cx);
 7229                        if let Some(active_panel) = dock.active_panel() {
 7230                            if active_panel.pane(cx).is_none() {
 7231                                let active_pane = workspace.active_pane().clone();
 7232                                active_pane.update(cx, |pane, cx| {
 7233                                    pane.close_active_item(action, window, cx)
 7234                                        .detach_and_log_err(cx);
 7235                                });
 7236                                return;
 7237                            }
 7238                        }
 7239                    }
 7240                    cx.propagate();
 7241                },
 7242            ))
 7243            .on_action(
 7244                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7245                    let pane = workspace.active_pane().clone();
 7246                    if let Some(item) = pane.read(cx).active_item() {
 7247                        item.toggle_read_only(window, cx);
 7248                    }
 7249                }),
 7250            )
 7251            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7252                workspace.focus_center_pane(window, cx);
 7253            }))
 7254            .on_action(cx.listener(Workspace::cancel))
 7255    }
 7256
 7257    #[cfg(any(test, feature = "test-support"))]
 7258    pub fn set_random_database_id(&mut self) {
 7259        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7260    }
 7261
 7262    #[cfg(any(test, feature = "test-support"))]
 7263    pub(crate) fn test_new(
 7264        project: Entity<Project>,
 7265        window: &mut Window,
 7266        cx: &mut Context<Self>,
 7267    ) -> Self {
 7268        use node_runtime::NodeRuntime;
 7269        use session::Session;
 7270
 7271        let client = project.read(cx).client();
 7272        let user_store = project.read(cx).user_store();
 7273        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7274        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7275        window.activate_window();
 7276        let app_state = Arc::new(AppState {
 7277            languages: project.read(cx).languages().clone(),
 7278            workspace_store,
 7279            client,
 7280            user_store,
 7281            fs: project.read(cx).fs().clone(),
 7282            build_window_options: |_, _| Default::default(),
 7283            node_runtime: NodeRuntime::unavailable(),
 7284            session,
 7285        });
 7286        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7287        workspace
 7288            .active_pane
 7289            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7290        workspace
 7291    }
 7292
 7293    pub fn register_action<A: Action>(
 7294        &mut self,
 7295        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7296    ) -> &mut Self {
 7297        let callback = Arc::new(callback);
 7298
 7299        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7300            let callback = callback.clone();
 7301            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7302                (callback)(workspace, event, window, cx)
 7303            }))
 7304        }));
 7305        self
 7306    }
 7307    pub fn register_action_renderer(
 7308        &mut self,
 7309        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7310    ) -> &mut Self {
 7311        self.workspace_actions.push(Box::new(callback));
 7312        self
 7313    }
 7314
 7315    fn add_workspace_actions_listeners(
 7316        &self,
 7317        mut div: Div,
 7318        window: &mut Window,
 7319        cx: &mut Context<Self>,
 7320    ) -> Div {
 7321        for action in self.workspace_actions.iter() {
 7322            div = (action)(div, self, window, cx)
 7323        }
 7324        div
 7325    }
 7326
 7327    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7328        self.modal_layer.read(cx).has_active_modal()
 7329    }
 7330
 7331    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7332        self.modal_layer
 7333            .read(cx)
 7334            .is_active_modal_command_palette(cx)
 7335    }
 7336
 7337    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7338        self.modal_layer.read(cx).active_modal()
 7339    }
 7340
 7341    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7342    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7343    /// If no modal is active, the new modal will be shown.
 7344    ///
 7345    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7346    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7347    /// will not be shown.
 7348    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7349    where
 7350        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7351    {
 7352        self.modal_layer.update(cx, |modal_layer, cx| {
 7353            modal_layer.toggle_modal(window, cx, build)
 7354        })
 7355    }
 7356
 7357    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7358        self.modal_layer
 7359            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7360    }
 7361
 7362    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7363        self.toast_layer
 7364            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7365    }
 7366
 7367    pub fn toggle_centered_layout(
 7368        &mut self,
 7369        _: &ToggleCenteredLayout,
 7370        _: &mut Window,
 7371        cx: &mut Context<Self>,
 7372    ) {
 7373        self.centered_layout = !self.centered_layout;
 7374        if let Some(database_id) = self.database_id() {
 7375            let db = WorkspaceDb::global(cx);
 7376            let centered_layout = self.centered_layout;
 7377            cx.background_spawn(async move {
 7378                db.set_centered_layout(database_id, centered_layout).await
 7379            })
 7380            .detach_and_log_err(cx);
 7381        }
 7382        cx.notify();
 7383    }
 7384
 7385    fn adjust_padding(padding: Option<f32>) -> f32 {
 7386        padding
 7387            .unwrap_or(CenteredPaddingSettings::default().0)
 7388            .clamp(
 7389                CenteredPaddingSettings::MIN_PADDING,
 7390                CenteredPaddingSettings::MAX_PADDING,
 7391            )
 7392    }
 7393
 7394    fn render_dock(
 7395        &self,
 7396        position: DockPosition,
 7397        dock: &Entity<Dock>,
 7398        window: &mut Window,
 7399        cx: &mut App,
 7400    ) -> Option<Div> {
 7401        if self.zoomed_position == Some(position) {
 7402            return None;
 7403        }
 7404
 7405        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7406            let pane = panel.pane(cx)?;
 7407            let follower_states = &self.follower_states;
 7408            leader_border_for_pane(follower_states, &pane, window, cx)
 7409        });
 7410
 7411        let mut container = div()
 7412            .flex()
 7413            .overflow_hidden()
 7414            .flex_none()
 7415            .child(dock.clone())
 7416            .children(leader_border);
 7417
 7418        // Apply sizing only when the dock is open. When closed the dock is still
 7419        // included in the element tree so its focus handle remains mounted — without
 7420        // this, toggle_panel_focus cannot focus the panel when the dock is closed.
 7421        let dock = dock.read(cx);
 7422        if let Some(panel) = dock.visible_panel() {
 7423            let size_state = dock.stored_panel_size_state(panel.as_ref());
 7424            if position.axis() == Axis::Horizontal {
 7425                let use_flexible = panel.has_flexible_size(window, cx);
 7426                let flex_grow = if use_flexible {
 7427                    size_state
 7428                        .and_then(|state| state.flex)
 7429                        .or_else(|| self.default_dock_flex(position))
 7430                } else {
 7431                    None
 7432                };
 7433                if let Some(grow) = flex_grow {
 7434                    let grow = grow.max(0.001);
 7435                    let style = container.style();
 7436                    style.flex_grow = Some(grow);
 7437                    style.flex_shrink = Some(1.0);
 7438                    style.flex_basis = Some(relative(0.).into());
 7439                } else {
 7440                    let size = size_state
 7441                        .and_then(|state| state.size)
 7442                        .unwrap_or_else(|| panel.default_size(window, cx));
 7443                    container = container.w(size);
 7444                }
 7445            } else {
 7446                let size = size_state
 7447                    .and_then(|state| state.size)
 7448                    .unwrap_or_else(|| panel.default_size(window, cx));
 7449                container = container.h(size);
 7450            }
 7451        }
 7452
 7453        Some(container)
 7454    }
 7455
 7456    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7457        window
 7458            .root::<MultiWorkspace>()
 7459            .flatten()
 7460            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7461    }
 7462
 7463    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7464        self.zoomed.as_ref()
 7465    }
 7466
 7467    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7468        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7469            return;
 7470        };
 7471        let windows = cx.windows();
 7472        let next_window =
 7473            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7474                || {
 7475                    windows
 7476                        .iter()
 7477                        .cycle()
 7478                        .skip_while(|window| window.window_id() != current_window_id)
 7479                        .nth(1)
 7480                },
 7481            );
 7482
 7483        if let Some(window) = next_window {
 7484            window
 7485                .update(cx, |_, window, _| window.activate_window())
 7486                .ok();
 7487        }
 7488    }
 7489
 7490    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7491        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7492            return;
 7493        };
 7494        let windows = cx.windows();
 7495        let prev_window =
 7496            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7497                || {
 7498                    windows
 7499                        .iter()
 7500                        .rev()
 7501                        .cycle()
 7502                        .skip_while(|window| window.window_id() != current_window_id)
 7503                        .nth(1)
 7504                },
 7505            );
 7506
 7507        if let Some(window) = prev_window {
 7508            window
 7509                .update(cx, |_, window, _| window.activate_window())
 7510                .ok();
 7511        }
 7512    }
 7513
 7514    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7515        if cx.stop_active_drag(window) {
 7516        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7517            dismiss_app_notification(&notification_id, cx);
 7518        } else {
 7519            cx.propagate();
 7520        }
 7521    }
 7522
 7523    fn resize_dock(
 7524        &mut self,
 7525        dock_pos: DockPosition,
 7526        new_size: Pixels,
 7527        window: &mut Window,
 7528        cx: &mut Context<Self>,
 7529    ) {
 7530        match dock_pos {
 7531            DockPosition::Left => self.resize_left_dock(new_size, window, cx),
 7532            DockPosition::Right => self.resize_right_dock(new_size, window, cx),
 7533            DockPosition::Bottom => self.resize_bottom_dock(new_size, window, cx),
 7534        }
 7535    }
 7536
 7537    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7538        let workspace_width = self.bounds.size.width;
 7539        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7540
 7541        self.right_dock.read_with(cx, |right_dock, cx| {
 7542            let right_dock_size = right_dock
 7543                .stored_active_panel_size(window, cx)
 7544                .unwrap_or(Pixels::ZERO);
 7545            if right_dock_size + size > workspace_width {
 7546                size = workspace_width - right_dock_size
 7547            }
 7548        });
 7549
 7550        let flex_grow = self.dock_flex_for_size(DockPosition::Left, size, window, cx);
 7551        self.left_dock.update(cx, |left_dock, cx| {
 7552            if WorkspaceSettings::get_global(cx)
 7553                .resize_all_panels_in_dock
 7554                .contains(&DockPosition::Left)
 7555            {
 7556                left_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7557            } else {
 7558                left_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7559            }
 7560        });
 7561    }
 7562
 7563    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7564        let workspace_width = self.bounds.size.width;
 7565        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7566        self.left_dock.read_with(cx, |left_dock, cx| {
 7567            let left_dock_size = left_dock
 7568                .stored_active_panel_size(window, cx)
 7569                .unwrap_or(Pixels::ZERO);
 7570            if left_dock_size + size > workspace_width {
 7571                size = workspace_width - left_dock_size
 7572            }
 7573        });
 7574        let flex_grow = self.dock_flex_for_size(DockPosition::Right, size, window, cx);
 7575        self.right_dock.update(cx, |right_dock, cx| {
 7576            if WorkspaceSettings::get_global(cx)
 7577                .resize_all_panels_in_dock
 7578                .contains(&DockPosition::Right)
 7579            {
 7580                right_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7581            } else {
 7582                right_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7583            }
 7584        });
 7585    }
 7586
 7587    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7588        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7589        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7590            if WorkspaceSettings::get_global(cx)
 7591                .resize_all_panels_in_dock
 7592                .contains(&DockPosition::Bottom)
 7593            {
 7594                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7595            } else {
 7596                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7597            }
 7598        });
 7599    }
 7600
 7601    fn toggle_edit_predictions_all_files(
 7602        &mut self,
 7603        _: &ToggleEditPrediction,
 7604        _window: &mut Window,
 7605        cx: &mut Context<Self>,
 7606    ) {
 7607        let fs = self.project().read(cx).fs().clone();
 7608        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7609        update_settings_file(fs, cx, move |file, _| {
 7610            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7611        });
 7612    }
 7613
 7614    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7615        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7616        let next_mode = match current_mode {
 7617            Some(theme_settings::ThemeAppearanceMode::Light) => {
 7618                theme_settings::ThemeAppearanceMode::Dark
 7619            }
 7620            Some(theme_settings::ThemeAppearanceMode::Dark) => {
 7621                theme_settings::ThemeAppearanceMode::Light
 7622            }
 7623            Some(theme_settings::ThemeAppearanceMode::System) | None => {
 7624                match cx.theme().appearance() {
 7625                    theme::Appearance::Light => theme_settings::ThemeAppearanceMode::Dark,
 7626                    theme::Appearance::Dark => theme_settings::ThemeAppearanceMode::Light,
 7627                }
 7628            }
 7629        };
 7630
 7631        let fs = self.project().read(cx).fs().clone();
 7632        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7633            theme_settings::set_mode(settings, next_mode);
 7634        });
 7635    }
 7636
 7637    pub fn show_worktree_trust_security_modal(
 7638        &mut self,
 7639        toggle: bool,
 7640        window: &mut Window,
 7641        cx: &mut Context<Self>,
 7642    ) {
 7643        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7644            if toggle {
 7645                security_modal.update(cx, |security_modal, cx| {
 7646                    security_modal.dismiss(cx);
 7647                })
 7648            } else {
 7649                security_modal.update(cx, |security_modal, cx| {
 7650                    security_modal.refresh_restricted_paths(cx);
 7651                });
 7652            }
 7653        } else {
 7654            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7655                .map(|trusted_worktrees| {
 7656                    trusted_worktrees
 7657                        .read(cx)
 7658                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7659                })
 7660                .unwrap_or(false);
 7661            if has_restricted_worktrees {
 7662                let project = self.project().read(cx);
 7663                let remote_host = project
 7664                    .remote_connection_options(cx)
 7665                    .map(RemoteHostLocation::from);
 7666                let worktree_store = project.worktree_store().downgrade();
 7667                self.toggle_modal(window, cx, |_, cx| {
 7668                    SecurityModal::new(worktree_store, remote_host, cx)
 7669                });
 7670            }
 7671        }
 7672    }
 7673}
 7674
 7675pub trait AnyActiveCall {
 7676    fn entity(&self) -> AnyEntity;
 7677    fn is_in_room(&self, _: &App) -> bool;
 7678    fn room_id(&self, _: &App) -> Option<u64>;
 7679    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7680    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7681    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7682    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7683    fn is_sharing_project(&self, _: &App) -> bool;
 7684    fn has_remote_participants(&self, _: &App) -> bool;
 7685    fn local_participant_is_guest(&self, _: &App) -> bool;
 7686    fn client(&self, _: &App) -> Arc<Client>;
 7687    fn share_on_join(&self, _: &App) -> bool;
 7688    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7689    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7690    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7691    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7692    fn join_project(
 7693        &self,
 7694        _: u64,
 7695        _: Arc<LanguageRegistry>,
 7696        _: Arc<dyn Fs>,
 7697        _: &mut App,
 7698    ) -> Task<Result<Entity<Project>>>;
 7699    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7700    fn subscribe(
 7701        &self,
 7702        _: &mut Window,
 7703        _: &mut Context<Workspace>,
 7704        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7705    ) -> Subscription;
 7706    fn create_shared_screen(
 7707        &self,
 7708        _: PeerId,
 7709        _: &Entity<Pane>,
 7710        _: &mut Window,
 7711        _: &mut App,
 7712    ) -> Option<Entity<SharedScreen>>;
 7713}
 7714
 7715#[derive(Clone)]
 7716pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7717impl Global for GlobalAnyActiveCall {}
 7718
 7719impl GlobalAnyActiveCall {
 7720    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7721        cx.try_global()
 7722    }
 7723
 7724    pub(crate) fn global(cx: &App) -> &Self {
 7725        cx.global()
 7726    }
 7727}
 7728
 7729/// Workspace-local view of a remote participant's location.
 7730#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7731pub enum ParticipantLocation {
 7732    SharedProject { project_id: u64 },
 7733    UnsharedProject,
 7734    External,
 7735}
 7736
 7737impl ParticipantLocation {
 7738    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7739        match location
 7740            .and_then(|l| l.variant)
 7741            .context("participant location was not provided")?
 7742        {
 7743            proto::participant_location::Variant::SharedProject(project) => {
 7744                Ok(Self::SharedProject {
 7745                    project_id: project.id,
 7746                })
 7747            }
 7748            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7749            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7750        }
 7751    }
 7752}
 7753/// Workspace-local view of a remote collaborator's state.
 7754/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7755#[derive(Clone)]
 7756pub struct RemoteCollaborator {
 7757    pub user: Arc<User>,
 7758    pub peer_id: PeerId,
 7759    pub location: ParticipantLocation,
 7760    pub participant_index: ParticipantIndex,
 7761}
 7762
 7763pub enum ActiveCallEvent {
 7764    ParticipantLocationChanged { participant_id: PeerId },
 7765    RemoteVideoTracksChanged { participant_id: PeerId },
 7766}
 7767
 7768fn leader_border_for_pane(
 7769    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7770    pane: &Entity<Pane>,
 7771    _: &Window,
 7772    cx: &App,
 7773) -> Option<Div> {
 7774    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7775        if state.pane() == pane {
 7776            Some((*leader_id, state))
 7777        } else {
 7778            None
 7779        }
 7780    })?;
 7781
 7782    let mut leader_color = match leader_id {
 7783        CollaboratorId::PeerId(leader_peer_id) => {
 7784            let leader = GlobalAnyActiveCall::try_global(cx)?
 7785                .0
 7786                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7787
 7788            cx.theme()
 7789                .players()
 7790                .color_for_participant(leader.participant_index.0)
 7791                .cursor
 7792        }
 7793        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7794    };
 7795    leader_color.fade_out(0.3);
 7796    Some(
 7797        div()
 7798            .absolute()
 7799            .size_full()
 7800            .left_0()
 7801            .top_0()
 7802            .border_2()
 7803            .border_color(leader_color),
 7804    )
 7805}
 7806
 7807fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7808    ZED_WINDOW_POSITION
 7809        .zip(*ZED_WINDOW_SIZE)
 7810        .map(|(position, size)| Bounds {
 7811            origin: position,
 7812            size,
 7813        })
 7814}
 7815
 7816fn open_items(
 7817    serialized_workspace: Option<SerializedWorkspace>,
 7818    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7819    window: &mut Window,
 7820    cx: &mut Context<Workspace>,
 7821) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7822    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7823        Workspace::load_workspace(
 7824            serialized_workspace,
 7825            project_paths_to_open
 7826                .iter()
 7827                .map(|(_, project_path)| project_path)
 7828                .cloned()
 7829                .collect(),
 7830            window,
 7831            cx,
 7832        )
 7833    });
 7834
 7835    cx.spawn_in(window, async move |workspace, cx| {
 7836        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7837
 7838        if let Some(restored_items) = restored_items {
 7839            let restored_items = restored_items.await?;
 7840
 7841            let restored_project_paths = restored_items
 7842                .iter()
 7843                .filter_map(|item| {
 7844                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7845                        .ok()
 7846                        .flatten()
 7847                })
 7848                .collect::<HashSet<_>>();
 7849
 7850            for restored_item in restored_items {
 7851                opened_items.push(restored_item.map(Ok));
 7852            }
 7853
 7854            project_paths_to_open
 7855                .iter_mut()
 7856                .for_each(|(_, project_path)| {
 7857                    if let Some(project_path_to_open) = project_path
 7858                        && restored_project_paths.contains(project_path_to_open)
 7859                    {
 7860                        *project_path = None;
 7861                    }
 7862                });
 7863        } else {
 7864            for _ in 0..project_paths_to_open.len() {
 7865                opened_items.push(None);
 7866            }
 7867        }
 7868        assert!(opened_items.len() == project_paths_to_open.len());
 7869
 7870        let tasks =
 7871            project_paths_to_open
 7872                .into_iter()
 7873                .enumerate()
 7874                .map(|(ix, (abs_path, project_path))| {
 7875                    let workspace = workspace.clone();
 7876                    cx.spawn(async move |cx| {
 7877                        let file_project_path = project_path?;
 7878                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7879                            workspace.project().update(cx, |project, cx| {
 7880                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7881                            })
 7882                        });
 7883
 7884                        // We only want to open file paths here. If one of the items
 7885                        // here is a directory, it was already opened further above
 7886                        // with a `find_or_create_worktree`.
 7887                        if let Ok(task) = abs_path_task
 7888                            && task.await.is_none_or(|p| p.is_file())
 7889                        {
 7890                            return Some((
 7891                                ix,
 7892                                workspace
 7893                                    .update_in(cx, |workspace, window, cx| {
 7894                                        workspace.open_path(
 7895                                            file_project_path,
 7896                                            None,
 7897                                            true,
 7898                                            window,
 7899                                            cx,
 7900                                        )
 7901                                    })
 7902                                    .log_err()?
 7903                                    .await,
 7904                            ));
 7905                        }
 7906                        None
 7907                    })
 7908                });
 7909
 7910        let tasks = tasks.collect::<Vec<_>>();
 7911
 7912        let tasks = futures::future::join_all(tasks);
 7913        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7914            opened_items[ix] = Some(path_open_result);
 7915        }
 7916
 7917        Ok(opened_items)
 7918    })
 7919}
 7920
 7921#[derive(Clone)]
 7922enum ActivateInDirectionTarget {
 7923    Pane(Entity<Pane>),
 7924    Dock(Entity<Dock>),
 7925    Sidebar(FocusHandle),
 7926}
 7927
 7928fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7929    window
 7930        .update(cx, |multi_workspace, _, cx| {
 7931            let workspace = multi_workspace.workspace().clone();
 7932            workspace.update(cx, |workspace, cx| {
 7933                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7934                    struct DatabaseFailedNotification;
 7935
 7936                    workspace.show_notification(
 7937                        NotificationId::unique::<DatabaseFailedNotification>(),
 7938                        cx,
 7939                        |cx| {
 7940                            cx.new(|cx| {
 7941                                MessageNotification::new("Failed to load the database file.", cx)
 7942                                    .primary_message("File an Issue")
 7943                                    .primary_icon(IconName::Plus)
 7944                                    .primary_on_click(|window, cx| {
 7945                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7946                                    })
 7947                            })
 7948                        },
 7949                    );
 7950                }
 7951            });
 7952        })
 7953        .log_err();
 7954}
 7955
 7956fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7957    if val == 0 {
 7958        ThemeSettings::get_global(cx).ui_font_size(cx)
 7959    } else {
 7960        px(val as f32)
 7961    }
 7962}
 7963
 7964fn adjust_active_dock_size_by_px(
 7965    px: Pixels,
 7966    workspace: &mut Workspace,
 7967    window: &mut Window,
 7968    cx: &mut Context<Workspace>,
 7969) {
 7970    let Some(active_dock) = workspace
 7971        .all_docks()
 7972        .into_iter()
 7973        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7974    else {
 7975        return;
 7976    };
 7977    let dock = active_dock.read(cx);
 7978    let Some(panel_size) = workspace.dock_size(&dock, window, cx) else {
 7979        return;
 7980    };
 7981    workspace.resize_dock(dock.position(), panel_size + px, window, cx);
 7982}
 7983
 7984fn adjust_open_docks_size_by_px(
 7985    px: Pixels,
 7986    workspace: &mut Workspace,
 7987    window: &mut Window,
 7988    cx: &mut Context<Workspace>,
 7989) {
 7990    let docks = workspace
 7991        .all_docks()
 7992        .into_iter()
 7993        .filter_map(|dock_entity| {
 7994            let dock = dock_entity.read(cx);
 7995            if dock.is_open() {
 7996                let dock_pos = dock.position();
 7997                let panel_size = workspace.dock_size(&dock, window, cx)?;
 7998                Some((dock_pos, panel_size + px))
 7999            } else {
 8000                None
 8001            }
 8002        })
 8003        .collect::<Vec<_>>();
 8004
 8005    for (position, new_size) in docks {
 8006        workspace.resize_dock(position, new_size, window, cx);
 8007    }
 8008}
 8009
 8010impl Focusable for Workspace {
 8011    fn focus_handle(&self, cx: &App) -> FocusHandle {
 8012        self.active_pane.focus_handle(cx)
 8013    }
 8014}
 8015
 8016#[derive(Clone)]
 8017struct DraggedDock(DockPosition);
 8018
 8019impl Render for DraggedDock {
 8020    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 8021        gpui::Empty
 8022    }
 8023}
 8024
 8025impl Render for Workspace {
 8026    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 8027        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 8028        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 8029            log::info!("Rendered first frame");
 8030        }
 8031
 8032        let centered_layout = self.centered_layout
 8033            && self.center.panes().len() == 1
 8034            && self.active_item(cx).is_some();
 8035        let render_padding = |size| {
 8036            (size > 0.0).then(|| {
 8037                div()
 8038                    .h_full()
 8039                    .w(relative(size))
 8040                    .bg(cx.theme().colors().editor_background)
 8041                    .border_color(cx.theme().colors().pane_group_border)
 8042            })
 8043        };
 8044        let paddings = if centered_layout {
 8045            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 8046            (
 8047                render_padding(Self::adjust_padding(
 8048                    settings.left_padding.map(|padding| padding.0),
 8049                )),
 8050                render_padding(Self::adjust_padding(
 8051                    settings.right_padding.map(|padding| padding.0),
 8052                )),
 8053            )
 8054        } else {
 8055            (None, None)
 8056        };
 8057        let ui_font = theme_settings::setup_ui_font(window, cx);
 8058
 8059        let theme = cx.theme().clone();
 8060        let colors = theme.colors();
 8061        let notification_entities = self
 8062            .notifications
 8063            .iter()
 8064            .map(|(_, notification)| notification.entity_id())
 8065            .collect::<Vec<_>>();
 8066        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 8067
 8068        div()
 8069            .relative()
 8070            .size_full()
 8071            .flex()
 8072            .flex_col()
 8073            .font(ui_font)
 8074            .gap_0()
 8075                .justify_start()
 8076                .items_start()
 8077                .text_color(colors.text)
 8078                .overflow_hidden()
 8079                .children(self.titlebar_item.clone())
 8080                .on_modifiers_changed(move |_, _, cx| {
 8081                    for &id in &notification_entities {
 8082                        cx.notify(id);
 8083                    }
 8084                })
 8085                .child(
 8086                    div()
 8087                        .size_full()
 8088                        .relative()
 8089                        .flex_1()
 8090                        .flex()
 8091                        .flex_col()
 8092                        .child(
 8093                            div()
 8094                                .id("workspace")
 8095                                .bg(colors.background)
 8096                                .relative()
 8097                                .flex_1()
 8098                                .w_full()
 8099                                .flex()
 8100                                .flex_col()
 8101                                .overflow_hidden()
 8102                                .border_t_1()
 8103                                .border_b_1()
 8104                                .border_color(colors.border)
 8105                                .child({
 8106                                    let this = cx.entity();
 8107                                    canvas(
 8108                                        move |bounds, window, cx| {
 8109                                            this.update(cx, |this, cx| {
 8110                                                let bounds_changed = this.bounds != bounds;
 8111                                                this.bounds = bounds;
 8112
 8113                                                if bounds_changed {
 8114                                                    this.left_dock.update(cx, |dock, cx| {
 8115                                                        dock.clamp_panel_size(
 8116                                                            bounds.size.width,
 8117                                                            window,
 8118                                                            cx,
 8119                                                        )
 8120                                                    });
 8121
 8122                                                    this.right_dock.update(cx, |dock, cx| {
 8123                                                        dock.clamp_panel_size(
 8124                                                            bounds.size.width,
 8125                                                            window,
 8126                                                            cx,
 8127                                                        )
 8128                                                    });
 8129
 8130                                                    this.bottom_dock.update(cx, |dock, cx| {
 8131                                                        dock.clamp_panel_size(
 8132                                                            bounds.size.height,
 8133                                                            window,
 8134                                                            cx,
 8135                                                        )
 8136                                                    });
 8137                                                }
 8138                                            })
 8139                                        },
 8140                                        |_, _, _, _| {},
 8141                                    )
 8142                                    .absolute()
 8143                                    .size_full()
 8144                                })
 8145                                .when(self.zoomed.is_none(), |this| {
 8146                                    this.on_drag_move(cx.listener(
 8147                                        move |workspace,
 8148                                              e: &DragMoveEvent<DraggedDock>,
 8149                                              window,
 8150                                              cx| {
 8151                                            if workspace.previous_dock_drag_coordinates
 8152                                                != Some(e.event.position)
 8153                                            {
 8154                                                workspace.previous_dock_drag_coordinates =
 8155                                                    Some(e.event.position);
 8156
 8157                                                match e.drag(cx).0 {
 8158                                                    DockPosition::Left => {
 8159                                                        workspace.resize_left_dock(
 8160                                                            e.event.position.x
 8161                                                                - workspace.bounds.left(),
 8162                                                            window,
 8163                                                            cx,
 8164                                                        );
 8165                                                    }
 8166                                                    DockPosition::Right => {
 8167                                                        workspace.resize_right_dock(
 8168                                                            workspace.bounds.right()
 8169                                                                - e.event.position.x,
 8170                                                            window,
 8171                                                            cx,
 8172                                                        );
 8173                                                    }
 8174                                                    DockPosition::Bottom => {
 8175                                                        workspace.resize_bottom_dock(
 8176                                                            workspace.bounds.bottom()
 8177                                                                - e.event.position.y,
 8178                                                            window,
 8179                                                            cx,
 8180                                                        );
 8181                                                    }
 8182                                                };
 8183                                                workspace.serialize_workspace(window, cx);
 8184                                            }
 8185                                        },
 8186                                    ))
 8187
 8188                                })
 8189                                .child({
 8190                                    match bottom_dock_layout {
 8191                                        BottomDockLayout::Full => div()
 8192                                            .flex()
 8193                                            .flex_col()
 8194                                            .h_full()
 8195                                            .child(
 8196                                                div()
 8197                                                    .flex()
 8198                                                    .flex_row()
 8199                                                    .flex_1()
 8200                                                    .overflow_hidden()
 8201                                                    .children(self.render_dock(
 8202                                                        DockPosition::Left,
 8203                                                        &self.left_dock,
 8204                                                        window,
 8205                                                        cx,
 8206                                                    ))
 8207
 8208                                                    .child(
 8209                                                        div()
 8210                                                            .flex()
 8211                                                            .flex_col()
 8212                                                            .flex_1()
 8213                                                            .overflow_hidden()
 8214                                                            .child(
 8215                                                                h_flex()
 8216                                                                    .flex_1()
 8217                                                                    .when_some(
 8218                                                                        paddings.0,
 8219                                                                        |this, p| {
 8220                                                                            this.child(
 8221                                                                                p.border_r_1(),
 8222                                                                            )
 8223                                                                        },
 8224                                                                    )
 8225                                                                    .child(self.center.render(
 8226                                                                        self.zoomed.as_ref(),
 8227                                                                        &PaneRenderContext {
 8228                                                                            follower_states:
 8229                                                                                &self.follower_states,
 8230                                                                            active_call: self.active_call(),
 8231                                                                            active_pane: &self.active_pane,
 8232                                                                            app_state: &self.app_state,
 8233                                                                            project: &self.project,
 8234                                                                            workspace: &self.weak_self,
 8235                                                                        },
 8236                                                                        window,
 8237                                                                        cx,
 8238                                                                    ))
 8239                                                                    .when_some(
 8240                                                                        paddings.1,
 8241                                                                        |this, p| {
 8242                                                                            this.child(
 8243                                                                                p.border_l_1(),
 8244                                                                            )
 8245                                                                        },
 8246                                                                    ),
 8247                                                            ),
 8248                                                    )
 8249
 8250                                                    .children(self.render_dock(
 8251                                                        DockPosition::Right,
 8252                                                        &self.right_dock,
 8253                                                        window,
 8254                                                        cx,
 8255                                                    )),
 8256                                            )
 8257                                            .child(div().w_full().children(self.render_dock(
 8258                                                DockPosition::Bottom,
 8259                                                &self.bottom_dock,
 8260                                                window,
 8261                                                cx
 8262                                            ))),
 8263
 8264                                        BottomDockLayout::LeftAligned => div()
 8265                                            .flex()
 8266                                            .flex_row()
 8267                                            .h_full()
 8268                                            .child(
 8269                                                div()
 8270                                                    .flex()
 8271                                                    .flex_col()
 8272                                                    .flex_1()
 8273                                                    .h_full()
 8274                                                    .child(
 8275                                                        div()
 8276                                                            .flex()
 8277                                                            .flex_row()
 8278                                                            .flex_1()
 8279                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8280
 8281                                                            .child(
 8282                                                                div()
 8283                                                                    .flex()
 8284                                                                    .flex_col()
 8285                                                                    .flex_1()
 8286                                                                    .overflow_hidden()
 8287                                                                    .child(
 8288                                                                        h_flex()
 8289                                                                            .flex_1()
 8290                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8291                                                                            .child(self.center.render(
 8292                                                                                self.zoomed.as_ref(),
 8293                                                                                &PaneRenderContext {
 8294                                                                                    follower_states:
 8295                                                                                        &self.follower_states,
 8296                                                                                    active_call: self.active_call(),
 8297                                                                                    active_pane: &self.active_pane,
 8298                                                                                    app_state: &self.app_state,
 8299                                                                                    project: &self.project,
 8300                                                                                    workspace: &self.weak_self,
 8301                                                                                },
 8302                                                                                window,
 8303                                                                                cx,
 8304                                                                            ))
 8305                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8306                                                                    )
 8307                                                            )
 8308
 8309                                                    )
 8310                                                    .child(
 8311                                                        div()
 8312                                                            .w_full()
 8313                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8314                                                    ),
 8315                                            )
 8316                                            .children(self.render_dock(
 8317                                                DockPosition::Right,
 8318                                                &self.right_dock,
 8319                                                window,
 8320                                                cx,
 8321                                            )),
 8322                                        BottomDockLayout::RightAligned => div()
 8323                                            .flex()
 8324                                            .flex_row()
 8325                                            .h_full()
 8326                                            .children(self.render_dock(
 8327                                                DockPosition::Left,
 8328                                                &self.left_dock,
 8329                                                window,
 8330                                                cx,
 8331                                            ))
 8332
 8333                                            .child(
 8334                                                div()
 8335                                                    .flex()
 8336                                                    .flex_col()
 8337                                                    .flex_1()
 8338                                                    .h_full()
 8339                                                    .child(
 8340                                                        div()
 8341                                                            .flex()
 8342                                                            .flex_row()
 8343                                                            .flex_1()
 8344                                                            .child(
 8345                                                                div()
 8346                                                                    .flex()
 8347                                                                    .flex_col()
 8348                                                                    .flex_1()
 8349                                                                    .overflow_hidden()
 8350                                                                    .child(
 8351                                                                        h_flex()
 8352                                                                            .flex_1()
 8353                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8354                                                                            .child(self.center.render(
 8355                                                                                self.zoomed.as_ref(),
 8356                                                                                &PaneRenderContext {
 8357                                                                                    follower_states:
 8358                                                                                        &self.follower_states,
 8359                                                                                    active_call: self.active_call(),
 8360                                                                                    active_pane: &self.active_pane,
 8361                                                                                    app_state: &self.app_state,
 8362                                                                                    project: &self.project,
 8363                                                                                    workspace: &self.weak_self,
 8364                                                                                },
 8365                                                                                window,
 8366                                                                                cx,
 8367                                                                            ))
 8368                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8369                                                                    )
 8370                                                            )
 8371
 8372                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8373                                                    )
 8374                                                    .child(
 8375                                                        div()
 8376                                                            .w_full()
 8377                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8378                                                    ),
 8379                                            ),
 8380                                        BottomDockLayout::Contained => div()
 8381                                            .flex()
 8382                                            .flex_row()
 8383                                            .h_full()
 8384                                            .children(self.render_dock(
 8385                                                DockPosition::Left,
 8386                                                &self.left_dock,
 8387                                                window,
 8388                                                cx,
 8389                                            ))
 8390
 8391                                            .child(
 8392                                                div()
 8393                                                    .flex()
 8394                                                    .flex_col()
 8395                                                    .flex_1()
 8396                                                    .overflow_hidden()
 8397                                                    .child(
 8398                                                        h_flex()
 8399                                                            .flex_1()
 8400                                                            .when_some(paddings.0, |this, p| {
 8401                                                                this.child(p.border_r_1())
 8402                                                            })
 8403                                                            .child(self.center.render(
 8404                                                                self.zoomed.as_ref(),
 8405                                                                &PaneRenderContext {
 8406                                                                    follower_states:
 8407                                                                        &self.follower_states,
 8408                                                                    active_call: self.active_call(),
 8409                                                                    active_pane: &self.active_pane,
 8410                                                                    app_state: &self.app_state,
 8411                                                                    project: &self.project,
 8412                                                                    workspace: &self.weak_self,
 8413                                                                },
 8414                                                                window,
 8415                                                                cx,
 8416                                                            ))
 8417                                                            .when_some(paddings.1, |this, p| {
 8418                                                                this.child(p.border_l_1())
 8419                                                            }),
 8420                                                    )
 8421                                                    .children(self.render_dock(
 8422                                                        DockPosition::Bottom,
 8423                                                        &self.bottom_dock,
 8424                                                        window,
 8425                                                        cx,
 8426                                                    )),
 8427                                            )
 8428
 8429                                            .children(self.render_dock(
 8430                                                DockPosition::Right,
 8431                                                &self.right_dock,
 8432                                                window,
 8433                                                cx,
 8434                                            )),
 8435                                    }
 8436                                })
 8437                                .children(self.zoomed.as_ref().and_then(|view| {
 8438                                    let zoomed_view = view.upgrade()?;
 8439                                    let div = div()
 8440                                        .occlude()
 8441                                        .absolute()
 8442                                        .overflow_hidden()
 8443                                        .border_color(colors.border)
 8444                                        .bg(colors.background)
 8445                                        .child(zoomed_view)
 8446                                        .inset_0()
 8447                                        .shadow_lg();
 8448
 8449                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8450                                       return Some(div);
 8451                                    }
 8452
 8453                                    Some(match self.zoomed_position {
 8454                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8455                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8456                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8457                                        None => {
 8458                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8459                                        }
 8460                                    })
 8461                                }))
 8462                                .children(self.render_notifications(window, cx)),
 8463                        )
 8464                        .when(self.status_bar_visible(cx), |parent| {
 8465                            parent.child(self.status_bar.clone())
 8466                        })
 8467                        .child(self.toast_layer.clone()),
 8468                )
 8469    }
 8470}
 8471
 8472impl WorkspaceStore {
 8473    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8474        Self {
 8475            workspaces: Default::default(),
 8476            _subscriptions: vec![
 8477                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8478                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8479            ],
 8480            client,
 8481        }
 8482    }
 8483
 8484    pub fn update_followers(
 8485        &self,
 8486        project_id: Option<u64>,
 8487        update: proto::update_followers::Variant,
 8488        cx: &App,
 8489    ) -> Option<()> {
 8490        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8491        let room_id = active_call.0.room_id(cx)?;
 8492        self.client
 8493            .send(proto::UpdateFollowers {
 8494                room_id,
 8495                project_id,
 8496                variant: Some(update),
 8497            })
 8498            .log_err()
 8499    }
 8500
 8501    pub async fn handle_follow(
 8502        this: Entity<Self>,
 8503        envelope: TypedEnvelope<proto::Follow>,
 8504        mut cx: AsyncApp,
 8505    ) -> Result<proto::FollowResponse> {
 8506        this.update(&mut cx, |this, cx| {
 8507            let follower = Follower {
 8508                project_id: envelope.payload.project_id,
 8509                peer_id: envelope.original_sender_id()?,
 8510            };
 8511
 8512            let mut response = proto::FollowResponse::default();
 8513
 8514            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8515                let Some(workspace) = weak_workspace.upgrade() else {
 8516                    return false;
 8517                };
 8518                window_handle
 8519                    .update(cx, |_, window, cx| {
 8520                        workspace.update(cx, |workspace, cx| {
 8521                            let handler_response =
 8522                                workspace.handle_follow(follower.project_id, window, cx);
 8523                            if let Some(active_view) = handler_response.active_view
 8524                                && workspace.project.read(cx).remote_id() == follower.project_id
 8525                            {
 8526                                response.active_view = Some(active_view)
 8527                            }
 8528                        });
 8529                    })
 8530                    .is_ok()
 8531            });
 8532
 8533            Ok(response)
 8534        })
 8535    }
 8536
 8537    async fn handle_update_followers(
 8538        this: Entity<Self>,
 8539        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8540        mut cx: AsyncApp,
 8541    ) -> Result<()> {
 8542        let leader_id = envelope.original_sender_id()?;
 8543        let update = envelope.payload;
 8544
 8545        this.update(&mut cx, |this, cx| {
 8546            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8547                let Some(workspace) = weak_workspace.upgrade() else {
 8548                    return false;
 8549                };
 8550                window_handle
 8551                    .update(cx, |_, window, cx| {
 8552                        workspace.update(cx, |workspace, cx| {
 8553                            let project_id = workspace.project.read(cx).remote_id();
 8554                            if update.project_id != project_id && update.project_id.is_some() {
 8555                                return;
 8556                            }
 8557                            workspace.handle_update_followers(
 8558                                leader_id,
 8559                                update.clone(),
 8560                                window,
 8561                                cx,
 8562                            );
 8563                        });
 8564                    })
 8565                    .is_ok()
 8566            });
 8567            Ok(())
 8568        })
 8569    }
 8570
 8571    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8572        self.workspaces.iter().map(|(_, weak)| weak)
 8573    }
 8574
 8575    pub fn workspaces_with_windows(
 8576        &self,
 8577    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8578        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8579    }
 8580}
 8581
 8582impl ViewId {
 8583    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8584        Ok(Self {
 8585            creator: message
 8586                .creator
 8587                .map(CollaboratorId::PeerId)
 8588                .context("creator is missing")?,
 8589            id: message.id,
 8590        })
 8591    }
 8592
 8593    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8594        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8595            Some(proto::ViewId {
 8596                creator: Some(peer_id),
 8597                id: self.id,
 8598            })
 8599        } else {
 8600            None
 8601        }
 8602    }
 8603}
 8604
 8605impl FollowerState {
 8606    fn pane(&self) -> &Entity<Pane> {
 8607        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8608    }
 8609}
 8610
 8611pub trait WorkspaceHandle {
 8612    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8613}
 8614
 8615impl WorkspaceHandle for Entity<Workspace> {
 8616    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8617        self.read(cx)
 8618            .worktrees(cx)
 8619            .flat_map(|worktree| {
 8620                let worktree_id = worktree.read(cx).id();
 8621                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8622                    worktree_id,
 8623                    path: f.path.clone(),
 8624                })
 8625            })
 8626            .collect::<Vec<_>>()
 8627    }
 8628}
 8629
 8630pub async fn last_opened_workspace_location(
 8631    db: &WorkspaceDb,
 8632    fs: &dyn fs::Fs,
 8633) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8634    db.last_workspace(fs)
 8635        .await
 8636        .log_err()
 8637        .flatten()
 8638        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8639}
 8640
 8641pub async fn last_session_workspace_locations(
 8642    db: &WorkspaceDb,
 8643    last_session_id: &str,
 8644    last_session_window_stack: Option<Vec<WindowId>>,
 8645    fs: &dyn fs::Fs,
 8646) -> Option<Vec<SessionWorkspace>> {
 8647    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8648        .await
 8649        .log_err()
 8650}
 8651
 8652pub async fn restore_multiworkspace(
 8653    multi_workspace: SerializedMultiWorkspace,
 8654    app_state: Arc<AppState>,
 8655    cx: &mut AsyncApp,
 8656) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8657    let SerializedMultiWorkspace {
 8658        active_workspace,
 8659        state,
 8660    } = multi_workspace;
 8661    let MultiWorkspaceState {
 8662        sidebar_open,
 8663        project_group_keys,
 8664        sidebar_state,
 8665        ..
 8666    } = state;
 8667
 8668    let window_handle = if active_workspace.paths.is_empty() {
 8669        cx.update(|cx| {
 8670            open_workspace_by_id(active_workspace.workspace_id, app_state.clone(), None, cx)
 8671        })
 8672        .await?
 8673    } else {
 8674        let OpenResult { window, .. } = cx
 8675            .update(|cx| {
 8676                Workspace::new_local(
 8677                    active_workspace.paths.paths().to_vec(),
 8678                    app_state.clone(),
 8679                    None,
 8680                    None,
 8681                    None,
 8682                    OpenMode::Activate,
 8683                    cx,
 8684                )
 8685            })
 8686            .await?;
 8687        window
 8688    };
 8689
 8690    if !project_group_keys.is_empty() {
 8691        let restored_keys: Vec<ProjectGroupKey> =
 8692            project_group_keys.into_iter().map(Into::into).collect();
 8693        window_handle
 8694            .update(cx, |multi_workspace, _window, _cx| {
 8695                multi_workspace.restore_project_group_keys(restored_keys);
 8696            })
 8697            .ok();
 8698    }
 8699
 8700    if sidebar_open {
 8701        window_handle
 8702            .update(cx, |multi_workspace, _, cx| {
 8703                multi_workspace.open_sidebar(cx);
 8704            })
 8705            .ok();
 8706    }
 8707
 8708    if let Some(sidebar_state) = sidebar_state {
 8709        window_handle
 8710            .update(cx, |multi_workspace, window, cx| {
 8711                if let Some(sidebar) = multi_workspace.sidebar() {
 8712                    sidebar.restore_serialized_state(&sidebar_state, window, cx);
 8713                }
 8714                multi_workspace.serialize(cx);
 8715            })
 8716            .ok();
 8717    }
 8718
 8719    window_handle
 8720        .update(cx, |_, window, _cx| {
 8721            window.activate_window();
 8722        })
 8723        .ok();
 8724
 8725    Ok(window_handle)
 8726}
 8727
 8728actions!(
 8729    collab,
 8730    [
 8731        /// Opens the channel notes for the current call.
 8732        ///
 8733        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8734        /// channel in the collab panel.
 8735        ///
 8736        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8737        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8738        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8739        OpenChannelNotes,
 8740        /// Mutes your microphone.
 8741        Mute,
 8742        /// Deafens yourself (mute both microphone and speakers).
 8743        Deafen,
 8744        /// Leaves the current call.
 8745        LeaveCall,
 8746        /// Shares the current project with collaborators.
 8747        ShareProject,
 8748        /// Shares your screen with collaborators.
 8749        ScreenShare,
 8750        /// Copies the current room name and session id for debugging purposes.
 8751        CopyRoomId,
 8752    ]
 8753);
 8754
 8755/// Opens the channel notes for a specific channel by its ID.
 8756#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8757#[action(namespace = collab)]
 8758#[serde(deny_unknown_fields)]
 8759pub struct OpenChannelNotesById {
 8760    pub channel_id: u64,
 8761}
 8762
 8763actions!(
 8764    zed,
 8765    [
 8766        /// Opens the Zed log file.
 8767        OpenLog,
 8768        /// Reveals the Zed log file in the system file manager.
 8769        RevealLogInFileManager
 8770    ]
 8771);
 8772
 8773async fn join_channel_internal(
 8774    channel_id: ChannelId,
 8775    app_state: &Arc<AppState>,
 8776    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8777    requesting_workspace: Option<WeakEntity<Workspace>>,
 8778    active_call: &dyn AnyActiveCall,
 8779    cx: &mut AsyncApp,
 8780) -> Result<bool> {
 8781    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8782        if !active_call.is_in_room(cx) {
 8783            return (false, false);
 8784        }
 8785
 8786        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8787        let should_prompt = active_call.is_sharing_project(cx)
 8788            && active_call.has_remote_participants(cx)
 8789            && !already_in_channel;
 8790        (should_prompt, already_in_channel)
 8791    });
 8792
 8793    if already_in_channel {
 8794        let task = cx.update(|cx| {
 8795            if let Some((project, host)) = active_call.most_active_project(cx) {
 8796                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8797            } else {
 8798                None
 8799            }
 8800        });
 8801        if let Some(task) = task {
 8802            task.await?;
 8803        }
 8804        return anyhow::Ok(true);
 8805    }
 8806
 8807    if should_prompt {
 8808        if let Some(multi_workspace) = requesting_window {
 8809            let answer = multi_workspace
 8810                .update(cx, |_, window, cx| {
 8811                    window.prompt(
 8812                        PromptLevel::Warning,
 8813                        "Do you want to switch channels?",
 8814                        Some("Leaving this call will unshare your current project."),
 8815                        &["Yes, Join Channel", "Cancel"],
 8816                        cx,
 8817                    )
 8818                })?
 8819                .await;
 8820
 8821            if answer == Ok(1) {
 8822                return Ok(false);
 8823            }
 8824        } else {
 8825            return Ok(false);
 8826        }
 8827    }
 8828
 8829    let client = cx.update(|cx| active_call.client(cx));
 8830
 8831    let mut client_status = client.status();
 8832
 8833    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8834    'outer: loop {
 8835        let Some(status) = client_status.recv().await else {
 8836            anyhow::bail!("error connecting");
 8837        };
 8838
 8839        match status {
 8840            Status::Connecting
 8841            | Status::Authenticating
 8842            | Status::Authenticated
 8843            | Status::Reconnecting
 8844            | Status::Reauthenticating
 8845            | Status::Reauthenticated => continue,
 8846            Status::Connected { .. } => break 'outer,
 8847            Status::SignedOut | Status::AuthenticationError => {
 8848                return Err(ErrorCode::SignedOut.into());
 8849            }
 8850            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8851            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8852                return Err(ErrorCode::Disconnected.into());
 8853            }
 8854        }
 8855    }
 8856
 8857    let joined = cx
 8858        .update(|cx| active_call.join_channel(channel_id, cx))
 8859        .await?;
 8860
 8861    if !joined {
 8862        return anyhow::Ok(true);
 8863    }
 8864
 8865    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8866
 8867    let task = cx.update(|cx| {
 8868        if let Some((project, host)) = active_call.most_active_project(cx) {
 8869            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8870        }
 8871
 8872        // If you are the first to join a channel, see if you should share your project.
 8873        if !active_call.has_remote_participants(cx)
 8874            && !active_call.local_participant_is_guest(cx)
 8875            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8876        {
 8877            let project = workspace.update(cx, |workspace, cx| {
 8878                let project = workspace.project.read(cx);
 8879
 8880                if !active_call.share_on_join(cx) {
 8881                    return None;
 8882                }
 8883
 8884                if (project.is_local() || project.is_via_remote_server())
 8885                    && project.visible_worktrees(cx).any(|tree| {
 8886                        tree.read(cx)
 8887                            .root_entry()
 8888                            .is_some_and(|entry| entry.is_dir())
 8889                    })
 8890                {
 8891                    Some(workspace.project.clone())
 8892                } else {
 8893                    None
 8894                }
 8895            });
 8896            if let Some(project) = project {
 8897                let share_task = active_call.share_project(project, cx);
 8898                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8899                    share_task.await?;
 8900                    Ok(())
 8901                }));
 8902            }
 8903        }
 8904
 8905        None
 8906    });
 8907    if let Some(task) = task {
 8908        task.await?;
 8909        return anyhow::Ok(true);
 8910    }
 8911    anyhow::Ok(false)
 8912}
 8913
 8914pub fn join_channel(
 8915    channel_id: ChannelId,
 8916    app_state: Arc<AppState>,
 8917    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8918    requesting_workspace: Option<WeakEntity<Workspace>>,
 8919    cx: &mut App,
 8920) -> Task<Result<()>> {
 8921    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8922    cx.spawn(async move |cx| {
 8923        let result = join_channel_internal(
 8924            channel_id,
 8925            &app_state,
 8926            requesting_window,
 8927            requesting_workspace,
 8928            &*active_call.0,
 8929            cx,
 8930        )
 8931        .await;
 8932
 8933        // join channel succeeded, and opened a window
 8934        if matches!(result, Ok(true)) {
 8935            return anyhow::Ok(());
 8936        }
 8937
 8938        // find an existing workspace to focus and show call controls
 8939        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8940        if active_window.is_none() {
 8941            // no open workspaces, make one to show the error in (blergh)
 8942            let OpenResult {
 8943                window: window_handle,
 8944                ..
 8945            } = cx
 8946                .update(|cx| {
 8947                    Workspace::new_local(
 8948                        vec![],
 8949                        app_state.clone(),
 8950                        requesting_window,
 8951                        None,
 8952                        None,
 8953                        OpenMode::Activate,
 8954                        cx,
 8955                    )
 8956                })
 8957                .await?;
 8958
 8959            window_handle
 8960                .update(cx, |_, window, _cx| {
 8961                    window.activate_window();
 8962                })
 8963                .ok();
 8964
 8965            if result.is_ok() {
 8966                cx.update(|cx| {
 8967                    cx.dispatch_action(&OpenChannelNotes);
 8968                });
 8969            }
 8970
 8971            active_window = Some(window_handle);
 8972        }
 8973
 8974        if let Err(err) = result {
 8975            log::error!("failed to join channel: {}", err);
 8976            if let Some(active_window) = active_window {
 8977                active_window
 8978                    .update(cx, |_, window, cx| {
 8979                        let detail: SharedString = match err.error_code() {
 8980                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8981                            ErrorCode::UpgradeRequired => concat!(
 8982                                "Your are running an unsupported version of Zed. ",
 8983                                "Please update to continue."
 8984                            )
 8985                            .into(),
 8986                            ErrorCode::NoSuchChannel => concat!(
 8987                                "No matching channel was found. ",
 8988                                "Please check the link and try again."
 8989                            )
 8990                            .into(),
 8991                            ErrorCode::Forbidden => concat!(
 8992                                "This channel is private, and you do not have access. ",
 8993                                "Please ask someone to add you and try again."
 8994                            )
 8995                            .into(),
 8996                            ErrorCode::Disconnected => {
 8997                                "Please check your internet connection and try again.".into()
 8998                            }
 8999                            _ => format!("{}\n\nPlease try again.", err).into(),
 9000                        };
 9001                        window.prompt(
 9002                            PromptLevel::Critical,
 9003                            "Failed to join channel",
 9004                            Some(&detail),
 9005                            &["Ok"],
 9006                            cx,
 9007                        )
 9008                    })?
 9009                    .await
 9010                    .ok();
 9011            }
 9012        }
 9013
 9014        // return ok, we showed the error to the user.
 9015        anyhow::Ok(())
 9016    })
 9017}
 9018
 9019pub async fn get_any_active_multi_workspace(
 9020    app_state: Arc<AppState>,
 9021    mut cx: AsyncApp,
 9022) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 9023    // find an existing workspace to focus and show call controls
 9024    let active_window = activate_any_workspace_window(&mut cx);
 9025    if active_window.is_none() {
 9026        cx.update(|cx| {
 9027            Workspace::new_local(
 9028                vec![],
 9029                app_state.clone(),
 9030                None,
 9031                None,
 9032                None,
 9033                OpenMode::Activate,
 9034                cx,
 9035            )
 9036        })
 9037        .await?;
 9038    }
 9039    activate_any_workspace_window(&mut cx).context("could not open zed")
 9040}
 9041
 9042fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 9043    cx.update(|cx| {
 9044        if let Some(workspace_window) = cx
 9045            .active_window()
 9046            .and_then(|window| window.downcast::<MultiWorkspace>())
 9047        {
 9048            return Some(workspace_window);
 9049        }
 9050
 9051        for window in cx.windows() {
 9052            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 9053                workspace_window
 9054                    .update(cx, |_, window, _| window.activate_window())
 9055                    .ok();
 9056                return Some(workspace_window);
 9057            }
 9058        }
 9059        None
 9060    })
 9061}
 9062
 9063pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 9064    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 9065}
 9066
 9067pub fn workspace_windows_for_location(
 9068    serialized_location: &SerializedWorkspaceLocation,
 9069    cx: &App,
 9070) -> Vec<WindowHandle<MultiWorkspace>> {
 9071    cx.windows()
 9072        .into_iter()
 9073        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9074        .filter(|multi_workspace| {
 9075            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 9076                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 9077                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 9078                }
 9079                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 9080                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 9081                    a.distro_name == b.distro_name
 9082                }
 9083                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 9084                    a.container_id == b.container_id
 9085                }
 9086                #[cfg(any(test, feature = "test-support"))]
 9087                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 9088                    a.id == b.id
 9089                }
 9090                _ => false,
 9091            };
 9092
 9093            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 9094                multi_workspace.workspaces().iter().any(|workspace| {
 9095                    match workspace.read(cx).workspace_location(cx) {
 9096                        WorkspaceLocation::Location(location, _) => {
 9097                            match (&location, serialized_location) {
 9098                                (
 9099                                    SerializedWorkspaceLocation::Local,
 9100                                    SerializedWorkspaceLocation::Local,
 9101                                ) => true,
 9102                                (
 9103                                    SerializedWorkspaceLocation::Remote(a),
 9104                                    SerializedWorkspaceLocation::Remote(b),
 9105                                ) => same_host(a, b),
 9106                                _ => false,
 9107                            }
 9108                        }
 9109                        _ => false,
 9110                    }
 9111                })
 9112            })
 9113        })
 9114        .collect()
 9115}
 9116
 9117pub async fn find_existing_workspace(
 9118    abs_paths: &[PathBuf],
 9119    open_options: &OpenOptions,
 9120    location: &SerializedWorkspaceLocation,
 9121    cx: &mut AsyncApp,
 9122) -> (
 9123    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 9124    OpenVisible,
 9125) {
 9126    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 9127    let mut open_visible = OpenVisible::All;
 9128    let mut best_match = None;
 9129
 9130    if open_options.open_new_workspace != Some(true) {
 9131        cx.update(|cx| {
 9132            for window in workspace_windows_for_location(location, cx) {
 9133                if let Ok(multi_workspace) = window.read(cx) {
 9134                    for workspace in multi_workspace.workspaces() {
 9135                        let project = workspace.read(cx).project.read(cx);
 9136                        let m = project.visibility_for_paths(
 9137                            abs_paths,
 9138                            open_options.open_new_workspace == None,
 9139                            cx,
 9140                        );
 9141                        if m > best_match {
 9142                            existing = Some((window, workspace.clone()));
 9143                            best_match = m;
 9144                        } else if best_match.is_none()
 9145                            && open_options.open_new_workspace == Some(false)
 9146                        {
 9147                            existing = Some((window, workspace.clone()))
 9148                        }
 9149                    }
 9150                }
 9151            }
 9152        });
 9153
 9154        let all_paths_are_files = existing
 9155            .as_ref()
 9156            .and_then(|(_, target_workspace)| {
 9157                cx.update(|cx| {
 9158                    let workspace = target_workspace.read(cx);
 9159                    let project = workspace.project.read(cx);
 9160                    let path_style = workspace.path_style(cx);
 9161                    Some(!abs_paths.iter().any(|path| {
 9162                        let path = util::paths::SanitizedPath::new(path);
 9163                        project.worktrees(cx).any(|worktree| {
 9164                            let worktree = worktree.read(cx);
 9165                            let abs_path = worktree.abs_path();
 9166                            path_style
 9167                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9168                                .and_then(|rel| worktree.entry_for_path(&rel))
 9169                                .is_some_and(|e| e.is_dir())
 9170                        })
 9171                    }))
 9172                })
 9173            })
 9174            .unwrap_or(false);
 9175
 9176        if open_options.open_new_workspace.is_none()
 9177            && existing.is_some()
 9178            && open_options.wait
 9179            && all_paths_are_files
 9180        {
 9181            cx.update(|cx| {
 9182                let windows = workspace_windows_for_location(location, cx);
 9183                let window = cx
 9184                    .active_window()
 9185                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9186                    .filter(|window| windows.contains(window))
 9187                    .or_else(|| windows.into_iter().next());
 9188                if let Some(window) = window {
 9189                    if let Ok(multi_workspace) = window.read(cx) {
 9190                        let active_workspace = multi_workspace.workspace().clone();
 9191                        existing = Some((window, active_workspace));
 9192                        open_visible = OpenVisible::None;
 9193                    }
 9194                }
 9195            });
 9196        }
 9197    }
 9198    (existing, open_visible)
 9199}
 9200
 9201#[derive(Default, Clone)]
 9202pub struct OpenOptions {
 9203    pub visible: Option<OpenVisible>,
 9204    pub focus: Option<bool>,
 9205    pub open_new_workspace: Option<bool>,
 9206    pub wait: bool,
 9207    pub requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9208    pub open_mode: OpenMode,
 9209    pub env: Option<HashMap<String, String>>,
 9210    pub open_in_dev_container: bool,
 9211}
 9212
 9213/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9214/// or [`Workspace::open_workspace_for_paths`].
 9215pub struct OpenResult {
 9216    pub window: WindowHandle<MultiWorkspace>,
 9217    pub workspace: Entity<Workspace>,
 9218    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9219}
 9220
 9221/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9222pub fn open_workspace_by_id(
 9223    workspace_id: WorkspaceId,
 9224    app_state: Arc<AppState>,
 9225    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9226    cx: &mut App,
 9227) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9228    let project_handle = Project::local(
 9229        app_state.client.clone(),
 9230        app_state.node_runtime.clone(),
 9231        app_state.user_store.clone(),
 9232        app_state.languages.clone(),
 9233        app_state.fs.clone(),
 9234        None,
 9235        project::LocalProjectFlags {
 9236            init_worktree_trust: true,
 9237            ..project::LocalProjectFlags::default()
 9238        },
 9239        cx,
 9240    );
 9241
 9242    let db = WorkspaceDb::global(cx);
 9243    let kvp = db::kvp::KeyValueStore::global(cx);
 9244    cx.spawn(async move |cx| {
 9245        let serialized_workspace = db
 9246            .workspace_for_id(workspace_id)
 9247            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9248
 9249        let centered_layout = serialized_workspace.centered_layout;
 9250
 9251        let (window, workspace) = if let Some(window) = requesting_window {
 9252            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9253                let workspace = cx.new(|cx| {
 9254                    let mut workspace = Workspace::new(
 9255                        Some(workspace_id),
 9256                        project_handle.clone(),
 9257                        app_state.clone(),
 9258                        window,
 9259                        cx,
 9260                    );
 9261                    workspace.centered_layout = centered_layout;
 9262                    workspace
 9263                });
 9264                multi_workspace.add(workspace.clone(), &*window, cx);
 9265                workspace
 9266            })?;
 9267            (window, workspace)
 9268        } else {
 9269            let window_bounds_override = window_bounds_env_override();
 9270
 9271            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9272                (Some(WindowBounds::Windowed(bounds)), None)
 9273            } else if let Some(display) = serialized_workspace.display
 9274                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9275            {
 9276                (Some(bounds.0), Some(display))
 9277            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9278                (Some(bounds), Some(display))
 9279            } else {
 9280                (None, None)
 9281            };
 9282
 9283            let options = cx.update(|cx| {
 9284                let mut options = (app_state.build_window_options)(display, cx);
 9285                options.window_bounds = window_bounds;
 9286                options
 9287            });
 9288
 9289            let window = cx.open_window(options, {
 9290                let app_state = app_state.clone();
 9291                let project_handle = project_handle.clone();
 9292                move |window, cx| {
 9293                    let workspace = cx.new(|cx| {
 9294                        let mut workspace = Workspace::new(
 9295                            Some(workspace_id),
 9296                            project_handle,
 9297                            app_state,
 9298                            window,
 9299                            cx,
 9300                        );
 9301                        workspace.centered_layout = centered_layout;
 9302                        workspace
 9303                    });
 9304                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9305                }
 9306            })?;
 9307
 9308            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9309                multi_workspace.workspace().clone()
 9310            })?;
 9311
 9312            (window, workspace)
 9313        };
 9314
 9315        notify_if_database_failed(window, cx);
 9316
 9317        // Restore items from the serialized workspace
 9318        window
 9319            .update(cx, |_, window, cx| {
 9320                workspace.update(cx, |_workspace, cx| {
 9321                    open_items(Some(serialized_workspace), vec![], window, cx)
 9322                })
 9323            })?
 9324            .await?;
 9325
 9326        window.update(cx, |_, window, cx| {
 9327            workspace.update(cx, |workspace, cx| {
 9328                workspace.serialize_workspace(window, cx);
 9329            });
 9330        })?;
 9331
 9332        Ok(window)
 9333    })
 9334}
 9335
 9336#[allow(clippy::type_complexity)]
 9337pub fn open_paths(
 9338    abs_paths: &[PathBuf],
 9339    app_state: Arc<AppState>,
 9340    mut open_options: OpenOptions,
 9341    cx: &mut App,
 9342) -> Task<anyhow::Result<OpenResult>> {
 9343    let abs_paths = abs_paths.to_vec();
 9344    #[cfg(target_os = "windows")]
 9345    let wsl_path = abs_paths
 9346        .iter()
 9347        .find_map(|p| util::paths::WslPath::from_path(p));
 9348
 9349    cx.spawn(async move |cx| {
 9350        let (mut existing, mut open_visible) = find_existing_workspace(
 9351            &abs_paths,
 9352            &open_options,
 9353            &SerializedWorkspaceLocation::Local,
 9354            cx,
 9355        )
 9356        .await;
 9357
 9358        // Fallback: if no workspace contains the paths and all paths are files,
 9359        // prefer an existing local workspace window (active window first).
 9360        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9361            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9362            let all_metadatas = futures::future::join_all(all_paths)
 9363                .await
 9364                .into_iter()
 9365                .filter_map(|result| result.ok().flatten());
 9366
 9367            if all_metadatas.into_iter().all(|file| !file.is_dir) {
 9368                cx.update(|cx| {
 9369                    let windows = workspace_windows_for_location(
 9370                        &SerializedWorkspaceLocation::Local,
 9371                        cx,
 9372                    );
 9373                    let window = cx
 9374                        .active_window()
 9375                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9376                        .filter(|window| windows.contains(window))
 9377                        .or_else(|| windows.into_iter().next());
 9378                    if let Some(window) = window {
 9379                        if let Ok(multi_workspace) = window.read(cx) {
 9380                            let active_workspace = multi_workspace.workspace().clone();
 9381                            existing = Some((window, active_workspace));
 9382                            open_visible = OpenVisible::None;
 9383                        }
 9384                    }
 9385                });
 9386            }
 9387        }
 9388
 9389        // Fallback for directories: when no flag is specified and no existing
 9390        // workspace matched, add the directory as a new workspace in the
 9391        // active window's MultiWorkspace (instead of opening a new window).
 9392        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9393            let target_window = cx.update(|cx| {
 9394                let windows = workspace_windows_for_location(
 9395                    &SerializedWorkspaceLocation::Local,
 9396                    cx,
 9397                );
 9398                let window = cx
 9399                    .active_window()
 9400                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9401                    .filter(|window| windows.contains(window))
 9402                    .or_else(|| windows.into_iter().next());
 9403                window.filter(|window| {
 9404                    window.read(cx).is_ok_and(|mw| mw.multi_workspace_enabled(cx))
 9405                })
 9406            });
 9407
 9408            if let Some(window) = target_window {
 9409                open_options.requesting_window = Some(window);
 9410                window
 9411                    .update(cx, |multi_workspace, _, cx| {
 9412                        multi_workspace.open_sidebar(cx);
 9413                    })
 9414                    .log_err();
 9415            }
 9416        }
 9417
 9418        let open_in_dev_container = open_options.open_in_dev_container;
 9419
 9420        let result = if let Some((existing, target_workspace)) = existing {
 9421            let open_task = existing
 9422                .update(cx, |multi_workspace, window, cx| {
 9423                    window.activate_window();
 9424                    multi_workspace.activate(target_workspace.clone(), window, cx);
 9425                    target_workspace.update(cx, |workspace, cx| {
 9426                        if open_in_dev_container {
 9427                            workspace.set_open_in_dev_container(true);
 9428                        }
 9429                        workspace.open_paths(
 9430                            abs_paths,
 9431                            OpenOptions {
 9432                                visible: Some(open_visible),
 9433                                ..Default::default()
 9434                            },
 9435                            None,
 9436                            window,
 9437                            cx,
 9438                        )
 9439                    })
 9440                })?
 9441                .await;
 9442
 9443            _ = existing.update(cx, |multi_workspace, _, cx| {
 9444                let workspace = multi_workspace.workspace().clone();
 9445                workspace.update(cx, |workspace, cx| {
 9446                    for item in open_task.iter().flatten() {
 9447                        if let Err(e) = item {
 9448                            workspace.show_error(&e, cx);
 9449                        }
 9450                    }
 9451                });
 9452            });
 9453
 9454            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9455        } else {
 9456            let init = if open_in_dev_container {
 9457                Some(Box::new(|workspace: &mut Workspace, _window: &mut Window, _cx: &mut Context<Workspace>| {
 9458                    workspace.set_open_in_dev_container(true);
 9459                }) as Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>)
 9460            } else {
 9461                None
 9462            };
 9463            let result = cx
 9464                .update(move |cx| {
 9465                    Workspace::new_local(
 9466                        abs_paths,
 9467                        app_state.clone(),
 9468                        open_options.requesting_window,
 9469                        open_options.env,
 9470                        init,
 9471                        open_options.open_mode,
 9472                        cx,
 9473                    )
 9474                })
 9475                .await;
 9476
 9477            if let Ok(ref result) = result {
 9478                result.window
 9479                    .update(cx, |_, window, _cx| {
 9480                        window.activate_window();
 9481                    })
 9482                    .log_err();
 9483            }
 9484
 9485            result
 9486        };
 9487
 9488        #[cfg(target_os = "windows")]
 9489        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9490            && let Ok(ref result) = result
 9491        {
 9492            result.window
 9493                .update(cx, move |multi_workspace, _window, cx| {
 9494                    struct OpenInWsl;
 9495                    let workspace = multi_workspace.workspace().clone();
 9496                    workspace.update(cx, |workspace, cx| {
 9497                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9498                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9499                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9500                            cx.new(move |cx| {
 9501                                MessageNotification::new(msg, cx)
 9502                                    .primary_message("Open in WSL")
 9503                                    .primary_icon(IconName::FolderOpen)
 9504                                    .primary_on_click(move |window, cx| {
 9505                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9506                                                distro: remote::WslConnectionOptions {
 9507                                                        distro_name: distro.clone(),
 9508                                                    user: None,
 9509                                                },
 9510                                                paths: vec![path.clone().into()],
 9511                                            }), cx)
 9512                                    })
 9513                            })
 9514                        });
 9515                    });
 9516                })
 9517                .unwrap();
 9518        };
 9519        result
 9520    })
 9521}
 9522
 9523pub fn open_new(
 9524    open_options: OpenOptions,
 9525    app_state: Arc<AppState>,
 9526    cx: &mut App,
 9527    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9528) -> Task<anyhow::Result<()>> {
 9529    let addition = open_options.open_mode;
 9530    let task = Workspace::new_local(
 9531        Vec::new(),
 9532        app_state,
 9533        open_options.requesting_window,
 9534        open_options.env,
 9535        Some(Box::new(init)),
 9536        addition,
 9537        cx,
 9538    );
 9539    cx.spawn(async move |cx| {
 9540        let OpenResult { window, .. } = task.await?;
 9541        window
 9542            .update(cx, |_, window, _cx| {
 9543                window.activate_window();
 9544            })
 9545            .ok();
 9546        Ok(())
 9547    })
 9548}
 9549
 9550pub fn create_and_open_local_file(
 9551    path: &'static Path,
 9552    window: &mut Window,
 9553    cx: &mut Context<Workspace>,
 9554    default_content: impl 'static + Send + FnOnce() -> Rope,
 9555) -> Task<Result<Box<dyn ItemHandle>>> {
 9556    cx.spawn_in(window, async move |workspace, cx| {
 9557        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9558        if !fs.is_file(path).await {
 9559            fs.create_file(path, Default::default()).await?;
 9560            fs.save(path, &default_content(), Default::default())
 9561                .await?;
 9562        }
 9563
 9564        workspace
 9565            .update_in(cx, |workspace, window, cx| {
 9566                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9567                    let path = workspace
 9568                        .project
 9569                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9570                    cx.spawn_in(window, async move |workspace, cx| {
 9571                        let path = path.await?;
 9572
 9573                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9574
 9575                        let mut items = workspace
 9576                            .update_in(cx, |workspace, window, cx| {
 9577                                workspace.open_paths(
 9578                                    vec![path.to_path_buf()],
 9579                                    OpenOptions {
 9580                                        visible: Some(OpenVisible::None),
 9581                                        ..Default::default()
 9582                                    },
 9583                                    None,
 9584                                    window,
 9585                                    cx,
 9586                                )
 9587                            })?
 9588                            .await;
 9589                        let item = items.pop().flatten();
 9590                        item.with_context(|| format!("path {path:?} is not a file"))?
 9591                    })
 9592                })
 9593            })?
 9594            .await?
 9595            .await
 9596    })
 9597}
 9598
 9599pub fn open_remote_project_with_new_connection(
 9600    window: WindowHandle<MultiWorkspace>,
 9601    remote_connection: Arc<dyn RemoteConnection>,
 9602    cancel_rx: oneshot::Receiver<()>,
 9603    delegate: Arc<dyn RemoteClientDelegate>,
 9604    app_state: Arc<AppState>,
 9605    paths: Vec<PathBuf>,
 9606    cx: &mut App,
 9607) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9608    cx.spawn(async move |cx| {
 9609        let (workspace_id, serialized_workspace) =
 9610            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9611                .await?;
 9612
 9613        let session = match cx
 9614            .update(|cx| {
 9615                remote::RemoteClient::new(
 9616                    ConnectionIdentifier::Workspace(workspace_id.0),
 9617                    remote_connection,
 9618                    cancel_rx,
 9619                    delegate,
 9620                    cx,
 9621                )
 9622            })
 9623            .await?
 9624        {
 9625            Some(result) => result,
 9626            None => return Ok(Vec::new()),
 9627        };
 9628
 9629        let project = cx.update(|cx| {
 9630            project::Project::remote(
 9631                session,
 9632                app_state.client.clone(),
 9633                app_state.node_runtime.clone(),
 9634                app_state.user_store.clone(),
 9635                app_state.languages.clone(),
 9636                app_state.fs.clone(),
 9637                true,
 9638                cx,
 9639            )
 9640        });
 9641
 9642        open_remote_project_inner(
 9643            project,
 9644            paths,
 9645            workspace_id,
 9646            serialized_workspace,
 9647            app_state,
 9648            window,
 9649            cx,
 9650        )
 9651        .await
 9652    })
 9653}
 9654
 9655pub fn open_remote_project_with_existing_connection(
 9656    connection_options: RemoteConnectionOptions,
 9657    project: Entity<Project>,
 9658    paths: Vec<PathBuf>,
 9659    app_state: Arc<AppState>,
 9660    window: WindowHandle<MultiWorkspace>,
 9661    cx: &mut AsyncApp,
 9662) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9663    cx.spawn(async move |cx| {
 9664        let (workspace_id, serialized_workspace) =
 9665            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9666
 9667        open_remote_project_inner(
 9668            project,
 9669            paths,
 9670            workspace_id,
 9671            serialized_workspace,
 9672            app_state,
 9673            window,
 9674            cx,
 9675        )
 9676        .await
 9677    })
 9678}
 9679
 9680async fn open_remote_project_inner(
 9681    project: Entity<Project>,
 9682    paths: Vec<PathBuf>,
 9683    workspace_id: WorkspaceId,
 9684    serialized_workspace: Option<SerializedWorkspace>,
 9685    app_state: Arc<AppState>,
 9686    window: WindowHandle<MultiWorkspace>,
 9687    cx: &mut AsyncApp,
 9688) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9689    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9690    let toolchains = db.toolchains(workspace_id).await?;
 9691    for (toolchain, worktree_path, path) in toolchains {
 9692        project
 9693            .update(cx, |this, cx| {
 9694                let Some(worktree_id) =
 9695                    this.find_worktree(&worktree_path, cx)
 9696                        .and_then(|(worktree, rel_path)| {
 9697                            if rel_path.is_empty() {
 9698                                Some(worktree.read(cx).id())
 9699                            } else {
 9700                                None
 9701                            }
 9702                        })
 9703                else {
 9704                    return Task::ready(None);
 9705                };
 9706
 9707                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9708            })
 9709            .await;
 9710    }
 9711    let mut project_paths_to_open = vec![];
 9712    let mut project_path_errors = vec![];
 9713
 9714    for path in paths {
 9715        let result = cx
 9716            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9717            .await;
 9718        match result {
 9719            Ok((_, project_path)) => {
 9720                project_paths_to_open.push((path.clone(), Some(project_path)));
 9721            }
 9722            Err(error) => {
 9723                project_path_errors.push(error);
 9724            }
 9725        };
 9726    }
 9727
 9728    if project_paths_to_open.is_empty() {
 9729        return Err(project_path_errors.pop().context("no paths given")?);
 9730    }
 9731
 9732    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9733        telemetry::event!("SSH Project Opened");
 9734
 9735        let new_workspace = cx.new(|cx| {
 9736            let mut workspace =
 9737                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9738            workspace.update_history(cx);
 9739
 9740            if let Some(ref serialized) = serialized_workspace {
 9741                workspace.centered_layout = serialized.centered_layout;
 9742            }
 9743
 9744            workspace
 9745        });
 9746
 9747        multi_workspace.activate(new_workspace.clone(), window, cx);
 9748        new_workspace
 9749    })?;
 9750
 9751    let items = window
 9752        .update(cx, |_, window, cx| {
 9753            window.activate_window();
 9754            workspace.update(cx, |_workspace, cx| {
 9755                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9756            })
 9757        })?
 9758        .await?;
 9759
 9760    workspace.update(cx, |workspace, cx| {
 9761        for error in project_path_errors {
 9762            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9763                if let Some(path) = error.error_tag("path") {
 9764                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9765                }
 9766            } else {
 9767                workspace.show_error(&error, cx)
 9768            }
 9769        }
 9770    });
 9771
 9772    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9773}
 9774
 9775fn deserialize_remote_project(
 9776    connection_options: RemoteConnectionOptions,
 9777    paths: Vec<PathBuf>,
 9778    cx: &AsyncApp,
 9779) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9780    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9781    cx.background_spawn(async move {
 9782        let remote_connection_id = db
 9783            .get_or_create_remote_connection(connection_options)
 9784            .await?;
 9785
 9786        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9787
 9788        let workspace_id = if let Some(workspace_id) =
 9789            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9790        {
 9791            workspace_id
 9792        } else {
 9793            db.next_id().await?
 9794        };
 9795
 9796        Ok((workspace_id, serialized_workspace))
 9797    })
 9798}
 9799
 9800pub fn join_in_room_project(
 9801    project_id: u64,
 9802    follow_user_id: u64,
 9803    app_state: Arc<AppState>,
 9804    cx: &mut App,
 9805) -> Task<Result<()>> {
 9806    let windows = cx.windows();
 9807    cx.spawn(async move |cx| {
 9808        let existing_window_and_workspace: Option<(
 9809            WindowHandle<MultiWorkspace>,
 9810            Entity<Workspace>,
 9811        )> = windows.into_iter().find_map(|window_handle| {
 9812            window_handle
 9813                .downcast::<MultiWorkspace>()
 9814                .and_then(|window_handle| {
 9815                    window_handle
 9816                        .update(cx, |multi_workspace, _window, cx| {
 9817                            for workspace in multi_workspace.workspaces() {
 9818                                if workspace.read(cx).project().read(cx).remote_id()
 9819                                    == Some(project_id)
 9820                                {
 9821                                    return Some((window_handle, workspace.clone()));
 9822                                }
 9823                            }
 9824                            None
 9825                        })
 9826                        .unwrap_or(None)
 9827                })
 9828        });
 9829
 9830        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9831            existing_window_and_workspace
 9832        {
 9833            existing_window
 9834                .update(cx, |multi_workspace, window, cx| {
 9835                    multi_workspace.activate(target_workspace, window, cx);
 9836                })
 9837                .ok();
 9838            existing_window
 9839        } else {
 9840            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9841            let project = cx
 9842                .update(|cx| {
 9843                    active_call.0.join_project(
 9844                        project_id,
 9845                        app_state.languages.clone(),
 9846                        app_state.fs.clone(),
 9847                        cx,
 9848                    )
 9849                })
 9850                .await?;
 9851
 9852            let window_bounds_override = window_bounds_env_override();
 9853            cx.update(|cx| {
 9854                let mut options = (app_state.build_window_options)(None, cx);
 9855                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9856                cx.open_window(options, |window, cx| {
 9857                    let workspace = cx.new(|cx| {
 9858                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9859                    });
 9860                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9861                })
 9862            })?
 9863        };
 9864
 9865        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9866            cx.activate(true);
 9867            window.activate_window();
 9868
 9869            // We set the active workspace above, so this is the correct workspace.
 9870            let workspace = multi_workspace.workspace().clone();
 9871            workspace.update(cx, |workspace, cx| {
 9872                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9873                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9874                    .or_else(|| {
 9875                        // If we couldn't follow the given user, follow the host instead.
 9876                        let collaborator = workspace
 9877                            .project()
 9878                            .read(cx)
 9879                            .collaborators()
 9880                            .values()
 9881                            .find(|collaborator| collaborator.is_host)?;
 9882                        Some(collaborator.peer_id)
 9883                    });
 9884
 9885                if let Some(follow_peer_id) = follow_peer_id {
 9886                    workspace.follow(follow_peer_id, window, cx);
 9887                }
 9888            });
 9889        })?;
 9890
 9891        anyhow::Ok(())
 9892    })
 9893}
 9894
 9895pub fn reload(cx: &mut App) {
 9896    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9897    let mut workspace_windows = cx
 9898        .windows()
 9899        .into_iter()
 9900        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9901        .collect::<Vec<_>>();
 9902
 9903    // If multiple windows have unsaved changes, and need a save prompt,
 9904    // prompt in the active window before switching to a different window.
 9905    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9906
 9907    let mut prompt = None;
 9908    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9909        prompt = window
 9910            .update(cx, |_, window, cx| {
 9911                window.prompt(
 9912                    PromptLevel::Info,
 9913                    "Are you sure you want to restart?",
 9914                    None,
 9915                    &["Restart", "Cancel"],
 9916                    cx,
 9917                )
 9918            })
 9919            .ok();
 9920    }
 9921
 9922    cx.spawn(async move |cx| {
 9923        if let Some(prompt) = prompt {
 9924            let answer = prompt.await?;
 9925            if answer != 0 {
 9926                return anyhow::Ok(());
 9927            }
 9928        }
 9929
 9930        // If the user cancels any save prompt, then keep the app open.
 9931        for window in workspace_windows {
 9932            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9933                let workspace = multi_workspace.workspace().clone();
 9934                workspace.update(cx, |workspace, cx| {
 9935                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9936                })
 9937            }) && !should_close.await?
 9938            {
 9939                return anyhow::Ok(());
 9940            }
 9941        }
 9942        cx.update(|cx| cx.restart());
 9943        anyhow::Ok(())
 9944    })
 9945    .detach_and_log_err(cx);
 9946}
 9947
 9948fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9949    let mut parts = value.split(',');
 9950    let x: usize = parts.next()?.parse().ok()?;
 9951    let y: usize = parts.next()?.parse().ok()?;
 9952    Some(point(px(x as f32), px(y as f32)))
 9953}
 9954
 9955fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9956    let mut parts = value.split(',');
 9957    let width: usize = parts.next()?.parse().ok()?;
 9958    let height: usize = parts.next()?.parse().ok()?;
 9959    Some(size(px(width as f32), px(height as f32)))
 9960}
 9961
 9962/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9963/// appropriate.
 9964///
 9965/// The `border_radius_tiling` parameter allows overriding which corners get
 9966/// rounded, independently of the actual window tiling state. This is used
 9967/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9968/// we want square corners on the left (so the sidebar appears flush with the
 9969/// window edge) but we still need the shadow padding for proper visual
 9970/// appearance. Unlike actual window tiling, this only affects border radius -
 9971/// not padding or shadows.
 9972pub fn client_side_decorations(
 9973    element: impl IntoElement,
 9974    window: &mut Window,
 9975    cx: &mut App,
 9976    border_radius_tiling: Tiling,
 9977) -> Stateful<Div> {
 9978    const BORDER_SIZE: Pixels = px(1.0);
 9979    let decorations = window.window_decorations();
 9980    let tiling = match decorations {
 9981        Decorations::Server => Tiling::default(),
 9982        Decorations::Client { tiling } => tiling,
 9983    };
 9984
 9985    match decorations {
 9986        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9987        Decorations::Server => window.set_client_inset(px(0.0)),
 9988    }
 9989
 9990    struct GlobalResizeEdge(ResizeEdge);
 9991    impl Global for GlobalResizeEdge {}
 9992
 9993    div()
 9994        .id("window-backdrop")
 9995        .bg(transparent_black())
 9996        .map(|div| match decorations {
 9997            Decorations::Server => div,
 9998            Decorations::Client { .. } => div
 9999                .when(
10000                    !(tiling.top
10001                        || tiling.right
10002                        || border_radius_tiling.top
10003                        || border_radius_tiling.right),
10004                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10005                )
10006                .when(
10007                    !(tiling.top
10008                        || tiling.left
10009                        || border_radius_tiling.top
10010                        || border_radius_tiling.left),
10011                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10012                )
10013                .when(
10014                    !(tiling.bottom
10015                        || tiling.right
10016                        || border_radius_tiling.bottom
10017                        || border_radius_tiling.right),
10018                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10019                )
10020                .when(
10021                    !(tiling.bottom
10022                        || tiling.left
10023                        || border_radius_tiling.bottom
10024                        || border_radius_tiling.left),
10025                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10026                )
10027                .when(!tiling.top, |div| {
10028                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
10029                })
10030                .when(!tiling.bottom, |div| {
10031                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
10032                })
10033                .when(!tiling.left, |div| {
10034                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
10035                })
10036                .when(!tiling.right, |div| {
10037                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
10038                })
10039                .on_mouse_move(move |e, window, cx| {
10040                    let size = window.window_bounds().get_bounds().size;
10041                    let pos = e.position;
10042
10043                    let new_edge =
10044                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
10045
10046                    let edge = cx.try_global::<GlobalResizeEdge>();
10047                    if new_edge != edge.map(|edge| edge.0) {
10048                        window
10049                            .window_handle()
10050                            .update(cx, |workspace, _, cx| {
10051                                cx.notify(workspace.entity_id());
10052                            })
10053                            .ok();
10054                    }
10055                })
10056                .on_mouse_down(MouseButton::Left, move |e, window, _| {
10057                    let size = window.window_bounds().get_bounds().size;
10058                    let pos = e.position;
10059
10060                    let edge = match resize_edge(
10061                        pos,
10062                        theme::CLIENT_SIDE_DECORATION_SHADOW,
10063                        size,
10064                        tiling,
10065                    ) {
10066                        Some(value) => value,
10067                        None => return,
10068                    };
10069
10070                    window.start_window_resize(edge);
10071                }),
10072        })
10073        .size_full()
10074        .child(
10075            div()
10076                .cursor(CursorStyle::Arrow)
10077                .map(|div| match decorations {
10078                    Decorations::Server => div,
10079                    Decorations::Client { .. } => div
10080                        .border_color(cx.theme().colors().border)
10081                        .when(
10082                            !(tiling.top
10083                                || tiling.right
10084                                || border_radius_tiling.top
10085                                || border_radius_tiling.right),
10086                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10087                        )
10088                        .when(
10089                            !(tiling.top
10090                                || tiling.left
10091                                || border_radius_tiling.top
10092                                || border_radius_tiling.left),
10093                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10094                        )
10095                        .when(
10096                            !(tiling.bottom
10097                                || tiling.right
10098                                || border_radius_tiling.bottom
10099                                || border_radius_tiling.right),
10100                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10101                        )
10102                        .when(
10103                            !(tiling.bottom
10104                                || tiling.left
10105                                || border_radius_tiling.bottom
10106                                || border_radius_tiling.left),
10107                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10108                        )
10109                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
10110                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
10111                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
10112                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
10113                        .when(!tiling.is_tiled(), |div| {
10114                            div.shadow(vec![gpui::BoxShadow {
10115                                color: Hsla {
10116                                    h: 0.,
10117                                    s: 0.,
10118                                    l: 0.,
10119                                    a: 0.4,
10120                                },
10121                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
10122                                spread_radius: px(0.),
10123                                offset: point(px(0.0), px(0.0)),
10124                            }])
10125                        }),
10126                })
10127                .on_mouse_move(|_e, _, cx| {
10128                    cx.stop_propagation();
10129                })
10130                .size_full()
10131                .child(element),
10132        )
10133        .map(|div| match decorations {
10134            Decorations::Server => div,
10135            Decorations::Client { tiling, .. } => div.child(
10136                canvas(
10137                    |_bounds, window, _| {
10138                        window.insert_hitbox(
10139                            Bounds::new(
10140                                point(px(0.0), px(0.0)),
10141                                window.window_bounds().get_bounds().size,
10142                            ),
10143                            HitboxBehavior::Normal,
10144                        )
10145                    },
10146                    move |_bounds, hitbox, window, cx| {
10147                        let mouse = window.mouse_position();
10148                        let size = window.window_bounds().get_bounds().size;
10149                        let Some(edge) =
10150                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
10151                        else {
10152                            return;
10153                        };
10154                        cx.set_global(GlobalResizeEdge(edge));
10155                        window.set_cursor_style(
10156                            match edge {
10157                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
10158                                ResizeEdge::Left | ResizeEdge::Right => {
10159                                    CursorStyle::ResizeLeftRight
10160                                }
10161                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
10162                                    CursorStyle::ResizeUpLeftDownRight
10163                                }
10164                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
10165                                    CursorStyle::ResizeUpRightDownLeft
10166                                }
10167                            },
10168                            &hitbox,
10169                        );
10170                    },
10171                )
10172                .size_full()
10173                .absolute(),
10174            ),
10175        })
10176}
10177
10178fn resize_edge(
10179    pos: Point<Pixels>,
10180    shadow_size: Pixels,
10181    window_size: Size<Pixels>,
10182    tiling: Tiling,
10183) -> Option<ResizeEdge> {
10184    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
10185    if bounds.contains(&pos) {
10186        return None;
10187    }
10188
10189    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
10190    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10191    if !tiling.top && top_left_bounds.contains(&pos) {
10192        return Some(ResizeEdge::TopLeft);
10193    }
10194
10195    let top_right_bounds = Bounds::new(
10196        Point::new(window_size.width - corner_size.width, px(0.)),
10197        corner_size,
10198    );
10199    if !tiling.top && top_right_bounds.contains(&pos) {
10200        return Some(ResizeEdge::TopRight);
10201    }
10202
10203    let bottom_left_bounds = Bounds::new(
10204        Point::new(px(0.), window_size.height - corner_size.height),
10205        corner_size,
10206    );
10207    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10208        return Some(ResizeEdge::BottomLeft);
10209    }
10210
10211    let bottom_right_bounds = Bounds::new(
10212        Point::new(
10213            window_size.width - corner_size.width,
10214            window_size.height - corner_size.height,
10215        ),
10216        corner_size,
10217    );
10218    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10219        return Some(ResizeEdge::BottomRight);
10220    }
10221
10222    if !tiling.top && pos.y < shadow_size {
10223        Some(ResizeEdge::Top)
10224    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10225        Some(ResizeEdge::Bottom)
10226    } else if !tiling.left && pos.x < shadow_size {
10227        Some(ResizeEdge::Left)
10228    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10229        Some(ResizeEdge::Right)
10230    } else {
10231        None
10232    }
10233}
10234
10235fn join_pane_into_active(
10236    active_pane: &Entity<Pane>,
10237    pane: &Entity<Pane>,
10238    window: &mut Window,
10239    cx: &mut App,
10240) {
10241    if pane == active_pane {
10242    } else if pane.read(cx).items_len() == 0 {
10243        pane.update(cx, |_, cx| {
10244            cx.emit(pane::Event::Remove {
10245                focus_on_pane: None,
10246            });
10247        })
10248    } else {
10249        move_all_items(pane, active_pane, window, cx);
10250    }
10251}
10252
10253fn move_all_items(
10254    from_pane: &Entity<Pane>,
10255    to_pane: &Entity<Pane>,
10256    window: &mut Window,
10257    cx: &mut App,
10258) {
10259    let destination_is_different = from_pane != to_pane;
10260    let mut moved_items = 0;
10261    for (item_ix, item_handle) in from_pane
10262        .read(cx)
10263        .items()
10264        .enumerate()
10265        .map(|(ix, item)| (ix, item.clone()))
10266        .collect::<Vec<_>>()
10267    {
10268        let ix = item_ix - moved_items;
10269        if destination_is_different {
10270            // Close item from previous pane
10271            from_pane.update(cx, |source, cx| {
10272                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10273            });
10274            moved_items += 1;
10275        }
10276
10277        // This automatically removes duplicate items in the pane
10278        to_pane.update(cx, |destination, cx| {
10279            destination.add_item(item_handle, true, true, None, window, cx);
10280            window.focus(&destination.focus_handle(cx), cx)
10281        });
10282    }
10283}
10284
10285pub fn move_item(
10286    source: &Entity<Pane>,
10287    destination: &Entity<Pane>,
10288    item_id_to_move: EntityId,
10289    destination_index: usize,
10290    activate: bool,
10291    window: &mut Window,
10292    cx: &mut App,
10293) {
10294    let Some((item_ix, item_handle)) = source
10295        .read(cx)
10296        .items()
10297        .enumerate()
10298        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10299        .map(|(ix, item)| (ix, item.clone()))
10300    else {
10301        // Tab was closed during drag
10302        return;
10303    };
10304
10305    if source != destination {
10306        // Close item from previous pane
10307        source.update(cx, |source, cx| {
10308            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10309        });
10310    }
10311
10312    // This automatically removes duplicate items in the pane
10313    destination.update(cx, |destination, cx| {
10314        destination.add_item_inner(
10315            item_handle,
10316            activate,
10317            activate,
10318            activate,
10319            Some(destination_index),
10320            window,
10321            cx,
10322        );
10323        if activate {
10324            window.focus(&destination.focus_handle(cx), cx)
10325        }
10326    });
10327}
10328
10329pub fn move_active_item(
10330    source: &Entity<Pane>,
10331    destination: &Entity<Pane>,
10332    focus_destination: bool,
10333    close_if_empty: bool,
10334    window: &mut Window,
10335    cx: &mut App,
10336) {
10337    if source == destination {
10338        return;
10339    }
10340    let Some(active_item) = source.read(cx).active_item() else {
10341        return;
10342    };
10343    source.update(cx, |source_pane, cx| {
10344        let item_id = active_item.item_id();
10345        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10346        destination.update(cx, |target_pane, cx| {
10347            target_pane.add_item(
10348                active_item,
10349                focus_destination,
10350                focus_destination,
10351                Some(target_pane.items_len()),
10352                window,
10353                cx,
10354            );
10355        });
10356    });
10357}
10358
10359pub fn clone_active_item(
10360    workspace_id: Option<WorkspaceId>,
10361    source: &Entity<Pane>,
10362    destination: &Entity<Pane>,
10363    focus_destination: bool,
10364    window: &mut Window,
10365    cx: &mut App,
10366) {
10367    if source == destination {
10368        return;
10369    }
10370    let Some(active_item) = source.read(cx).active_item() else {
10371        return;
10372    };
10373    if !active_item.can_split(cx) {
10374        return;
10375    }
10376    let destination = destination.downgrade();
10377    let task = active_item.clone_on_split(workspace_id, window, cx);
10378    window
10379        .spawn(cx, async move |cx| {
10380            let Some(clone) = task.await else {
10381                return;
10382            };
10383            destination
10384                .update_in(cx, |target_pane, window, cx| {
10385                    target_pane.add_item(
10386                        clone,
10387                        focus_destination,
10388                        focus_destination,
10389                        Some(target_pane.items_len()),
10390                        window,
10391                        cx,
10392                    );
10393                })
10394                .log_err();
10395        })
10396        .detach();
10397}
10398
10399#[derive(Debug)]
10400pub struct WorkspacePosition {
10401    pub window_bounds: Option<WindowBounds>,
10402    pub display: Option<Uuid>,
10403    pub centered_layout: bool,
10404}
10405
10406pub fn remote_workspace_position_from_db(
10407    connection_options: RemoteConnectionOptions,
10408    paths_to_open: &[PathBuf],
10409    cx: &App,
10410) -> Task<Result<WorkspacePosition>> {
10411    let paths = paths_to_open.to_vec();
10412    let db = WorkspaceDb::global(cx);
10413    let kvp = db::kvp::KeyValueStore::global(cx);
10414
10415    cx.background_spawn(async move {
10416        let remote_connection_id = db
10417            .get_or_create_remote_connection(connection_options)
10418            .await
10419            .context("fetching serialized ssh project")?;
10420        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10421
10422        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10423            (Some(WindowBounds::Windowed(bounds)), None)
10424        } else {
10425            let restorable_bounds = serialized_workspace
10426                .as_ref()
10427                .and_then(|workspace| {
10428                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10429                })
10430                .or_else(|| persistence::read_default_window_bounds(&kvp));
10431
10432            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10433                (Some(serialized_bounds), Some(serialized_display))
10434            } else {
10435                (None, None)
10436            }
10437        };
10438
10439        let centered_layout = serialized_workspace
10440            .as_ref()
10441            .map(|w| w.centered_layout)
10442            .unwrap_or(false);
10443
10444        Ok(WorkspacePosition {
10445            window_bounds,
10446            display,
10447            centered_layout,
10448        })
10449    })
10450}
10451
10452pub fn with_active_or_new_workspace(
10453    cx: &mut App,
10454    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10455) {
10456    match cx
10457        .active_window()
10458        .and_then(|w| w.downcast::<MultiWorkspace>())
10459    {
10460        Some(multi_workspace) => {
10461            cx.defer(move |cx| {
10462                multi_workspace
10463                    .update(cx, |multi_workspace, window, cx| {
10464                        let workspace = multi_workspace.workspace().clone();
10465                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10466                    })
10467                    .log_err();
10468            });
10469        }
10470        None => {
10471            let app_state = AppState::global(cx);
10472            open_new(
10473                OpenOptions::default(),
10474                app_state,
10475                cx,
10476                move |workspace, window, cx| f(workspace, window, cx),
10477            )
10478            .detach_and_log_err(cx);
10479        }
10480    }
10481}
10482
10483/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10484/// key. This migration path only runs once per panel per workspace.
10485fn load_legacy_panel_size(
10486    panel_key: &str,
10487    dock_position: DockPosition,
10488    workspace: &Workspace,
10489    cx: &mut App,
10490) -> Option<Pixels> {
10491    #[derive(Deserialize)]
10492    struct LegacyPanelState {
10493        #[serde(default)]
10494        width: Option<Pixels>,
10495        #[serde(default)]
10496        height: Option<Pixels>,
10497    }
10498
10499    let workspace_id = workspace
10500        .database_id()
10501        .map(|id| i64::from(id).to_string())
10502        .or_else(|| workspace.session_id())?;
10503
10504    let legacy_key = match panel_key {
10505        "ProjectPanel" => {
10506            format!("{}-{:?}", "ProjectPanel", workspace_id)
10507        }
10508        "OutlinePanel" => {
10509            format!("{}-{:?}", "OutlinePanel", workspace_id)
10510        }
10511        "GitPanel" => {
10512            format!("{}-{:?}", "GitPanel", workspace_id)
10513        }
10514        "TerminalPanel" => {
10515            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10516        }
10517        _ => return None,
10518    };
10519
10520    let kvp = db::kvp::KeyValueStore::global(cx);
10521    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10522    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10523    let size = match dock_position {
10524        DockPosition::Bottom => state.height,
10525        DockPosition::Left | DockPosition::Right => state.width,
10526    }?;
10527
10528    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10529        .detach_and_log_err(cx);
10530
10531    Some(size)
10532}
10533
10534#[cfg(test)]
10535mod tests {
10536    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10537
10538    use super::*;
10539    use crate::{
10540        dock::{PanelEvent, test::TestPanel},
10541        item::{
10542            ItemBufferKind, ItemEvent,
10543            test::{TestItem, TestProjectItem},
10544        },
10545    };
10546    use fs::FakeFs;
10547    use gpui::{
10548        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10549        UpdateGlobal, VisualTestContext, px,
10550    };
10551    use project::{Project, ProjectEntryId};
10552    use serde_json::json;
10553    use settings::SettingsStore;
10554    use util::path;
10555    use util::rel_path::rel_path;
10556
10557    #[gpui::test]
10558    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10559        init_test(cx);
10560
10561        let fs = FakeFs::new(cx.executor());
10562        let project = Project::test(fs, [], cx).await;
10563        let (workspace, cx) =
10564            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10565
10566        // Adding an item with no ambiguity renders the tab without detail.
10567        let item1 = cx.new(|cx| {
10568            let mut item = TestItem::new(cx);
10569            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10570            item
10571        });
10572        workspace.update_in(cx, |workspace, window, cx| {
10573            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10574        });
10575        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10576
10577        // Adding an item that creates ambiguity increases the level of detail on
10578        // both tabs.
10579        let item2 = cx.new_window_entity(|_window, cx| {
10580            let mut item = TestItem::new(cx);
10581            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10582            item
10583        });
10584        workspace.update_in(cx, |workspace, window, cx| {
10585            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10586        });
10587        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10588        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10589
10590        // Adding an item that creates ambiguity increases the level of detail only
10591        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10592        // we stop at the highest detail available.
10593        let item3 = cx.new(|cx| {
10594            let mut item = TestItem::new(cx);
10595            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10596            item
10597        });
10598        workspace.update_in(cx, |workspace, window, cx| {
10599            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10600        });
10601        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10602        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10603        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10604    }
10605
10606    #[gpui::test]
10607    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10608        init_test(cx);
10609
10610        let fs = FakeFs::new(cx.executor());
10611        fs.insert_tree(
10612            "/root1",
10613            json!({
10614                "one.txt": "",
10615                "two.txt": "",
10616            }),
10617        )
10618        .await;
10619        fs.insert_tree(
10620            "/root2",
10621            json!({
10622                "three.txt": "",
10623            }),
10624        )
10625        .await;
10626
10627        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10628        let (workspace, cx) =
10629            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10630        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10631        let worktree_id = project.update(cx, |project, cx| {
10632            project.worktrees(cx).next().unwrap().read(cx).id()
10633        });
10634
10635        let item1 = cx.new(|cx| {
10636            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10637        });
10638        let item2 = cx.new(|cx| {
10639            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10640        });
10641
10642        // Add an item to an empty pane
10643        workspace.update_in(cx, |workspace, window, cx| {
10644            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10645        });
10646        project.update(cx, |project, cx| {
10647            assert_eq!(
10648                project.active_entry(),
10649                project
10650                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10651                    .map(|e| e.id)
10652            );
10653        });
10654        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10655
10656        // Add a second item to a non-empty pane
10657        workspace.update_in(cx, |workspace, window, cx| {
10658            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10659        });
10660        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10661        project.update(cx, |project, cx| {
10662            assert_eq!(
10663                project.active_entry(),
10664                project
10665                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10666                    .map(|e| e.id)
10667            );
10668        });
10669
10670        // Close the active item
10671        pane.update_in(cx, |pane, window, cx| {
10672            pane.close_active_item(&Default::default(), window, cx)
10673        })
10674        .await
10675        .unwrap();
10676        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10677        project.update(cx, |project, cx| {
10678            assert_eq!(
10679                project.active_entry(),
10680                project
10681                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10682                    .map(|e| e.id)
10683            );
10684        });
10685
10686        // Add a project folder
10687        project
10688            .update(cx, |project, cx| {
10689                project.find_or_create_worktree("root2", true, cx)
10690            })
10691            .await
10692            .unwrap();
10693        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10694
10695        // Remove a project folder
10696        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10697        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10698    }
10699
10700    #[gpui::test]
10701    async fn test_close_window(cx: &mut TestAppContext) {
10702        init_test(cx);
10703
10704        let fs = FakeFs::new(cx.executor());
10705        fs.insert_tree("/root", json!({ "one": "" })).await;
10706
10707        let project = Project::test(fs, ["root".as_ref()], cx).await;
10708        let (workspace, cx) =
10709            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10710
10711        // When there are no dirty items, there's nothing to do.
10712        let item1 = cx.new(TestItem::new);
10713        workspace.update_in(cx, |w, window, cx| {
10714            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10715        });
10716        let task = workspace.update_in(cx, |w, window, cx| {
10717            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10718        });
10719        assert!(task.await.unwrap());
10720
10721        // When there are dirty untitled items, prompt to save each one. If the user
10722        // cancels any prompt, then abort.
10723        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10724        let item3 = cx.new(|cx| {
10725            TestItem::new(cx)
10726                .with_dirty(true)
10727                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10728        });
10729        workspace.update_in(cx, |w, window, cx| {
10730            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10731            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10732        });
10733        let task = workspace.update_in(cx, |w, window, cx| {
10734            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10735        });
10736        cx.executor().run_until_parked();
10737        cx.simulate_prompt_answer("Cancel"); // cancel save all
10738        cx.executor().run_until_parked();
10739        assert!(!cx.has_pending_prompt());
10740        assert!(!task.await.unwrap());
10741    }
10742
10743    #[gpui::test]
10744    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10745        init_test(cx);
10746
10747        let fs = FakeFs::new(cx.executor());
10748        fs.insert_tree("/root", json!({ "one": "" })).await;
10749
10750        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10751        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10752        let multi_workspace_handle =
10753            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10754        cx.run_until_parked();
10755
10756        let workspace_a = multi_workspace_handle
10757            .read_with(cx, |mw, _| mw.workspace().clone())
10758            .unwrap();
10759
10760        let workspace_b = multi_workspace_handle
10761            .update(cx, |mw, window, cx| {
10762                mw.test_add_workspace(project_b, window, cx)
10763            })
10764            .unwrap();
10765
10766        // Activate workspace A
10767        multi_workspace_handle
10768            .update(cx, |mw, window, cx| {
10769                let workspace = mw.workspaces()[0].clone();
10770                mw.activate(workspace, window, cx);
10771            })
10772            .unwrap();
10773
10774        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10775
10776        // Workspace A has a clean item
10777        let item_a = cx.new(TestItem::new);
10778        workspace_a.update_in(cx, |w, window, cx| {
10779            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10780        });
10781
10782        // Workspace B has a dirty item
10783        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10784        workspace_b.update_in(cx, |w, window, cx| {
10785            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10786        });
10787
10788        // Verify workspace A is active
10789        multi_workspace_handle
10790            .read_with(cx, |mw, _| {
10791                assert_eq!(mw.active_workspace_index(), 0);
10792            })
10793            .unwrap();
10794
10795        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10796        multi_workspace_handle
10797            .update(cx, |mw, window, cx| {
10798                mw.close_window(&CloseWindow, window, cx);
10799            })
10800            .unwrap();
10801        cx.run_until_parked();
10802
10803        // Workspace B should now be active since it has dirty items that need attention
10804        multi_workspace_handle
10805            .read_with(cx, |mw, _| {
10806                assert_eq!(
10807                    mw.active_workspace_index(),
10808                    1,
10809                    "workspace B should be activated when it prompts"
10810                );
10811            })
10812            .unwrap();
10813
10814        // User cancels the save prompt from workspace B
10815        cx.simulate_prompt_answer("Cancel");
10816        cx.run_until_parked();
10817
10818        // Window should still exist because workspace B's close was cancelled
10819        assert!(
10820            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10821            "window should still exist after cancelling one workspace's close"
10822        );
10823    }
10824
10825    #[gpui::test]
10826    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10827        init_test(cx);
10828
10829        // Register TestItem as a serializable item
10830        cx.update(|cx| {
10831            register_serializable_item::<TestItem>(cx);
10832        });
10833
10834        let fs = FakeFs::new(cx.executor());
10835        fs.insert_tree("/root", json!({ "one": "" })).await;
10836
10837        let project = Project::test(fs, ["root".as_ref()], cx).await;
10838        let (workspace, cx) =
10839            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10840
10841        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10842        let item1 = cx.new(|cx| {
10843            TestItem::new(cx)
10844                .with_dirty(true)
10845                .with_serialize(|| Some(Task::ready(Ok(()))))
10846        });
10847        let item2 = cx.new(|cx| {
10848            TestItem::new(cx)
10849                .with_dirty(true)
10850                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10851                .with_serialize(|| Some(Task::ready(Ok(()))))
10852        });
10853        workspace.update_in(cx, |w, window, cx| {
10854            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10855            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10856        });
10857        let task = workspace.update_in(cx, |w, window, cx| {
10858            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10859        });
10860        assert!(task.await.unwrap());
10861    }
10862
10863    #[gpui::test]
10864    async fn test_close_pane_items(cx: &mut TestAppContext) {
10865        init_test(cx);
10866
10867        let fs = FakeFs::new(cx.executor());
10868
10869        let project = Project::test(fs, None, cx).await;
10870        let (workspace, cx) =
10871            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10872
10873        let item1 = cx.new(|cx| {
10874            TestItem::new(cx)
10875                .with_dirty(true)
10876                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10877        });
10878        let item2 = cx.new(|cx| {
10879            TestItem::new(cx)
10880                .with_dirty(true)
10881                .with_conflict(true)
10882                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10883        });
10884        let item3 = cx.new(|cx| {
10885            TestItem::new(cx)
10886                .with_dirty(true)
10887                .with_conflict(true)
10888                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10889        });
10890        let item4 = cx.new(|cx| {
10891            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10892                let project_item = TestProjectItem::new_untitled(cx);
10893                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10894                project_item
10895            }])
10896        });
10897        let pane = workspace.update_in(cx, |workspace, window, cx| {
10898            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10899            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10900            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10901            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10902            workspace.active_pane().clone()
10903        });
10904
10905        let close_items = pane.update_in(cx, |pane, window, cx| {
10906            pane.activate_item(1, true, true, window, cx);
10907            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10908            let item1_id = item1.item_id();
10909            let item3_id = item3.item_id();
10910            let item4_id = item4.item_id();
10911            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10912                [item1_id, item3_id, item4_id].contains(&id)
10913            })
10914        });
10915        cx.executor().run_until_parked();
10916
10917        assert!(cx.has_pending_prompt());
10918        cx.simulate_prompt_answer("Save all");
10919
10920        cx.executor().run_until_parked();
10921
10922        // Item 1 is saved. There's a prompt to save item 3.
10923        pane.update(cx, |pane, cx| {
10924            assert_eq!(item1.read(cx).save_count, 1);
10925            assert_eq!(item1.read(cx).save_as_count, 0);
10926            assert_eq!(item1.read(cx).reload_count, 0);
10927            assert_eq!(pane.items_len(), 3);
10928            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10929        });
10930        assert!(cx.has_pending_prompt());
10931
10932        // Cancel saving item 3.
10933        cx.simulate_prompt_answer("Discard");
10934        cx.executor().run_until_parked();
10935
10936        // Item 3 is reloaded. There's a prompt to save item 4.
10937        pane.update(cx, |pane, cx| {
10938            assert_eq!(item3.read(cx).save_count, 0);
10939            assert_eq!(item3.read(cx).save_as_count, 0);
10940            assert_eq!(item3.read(cx).reload_count, 1);
10941            assert_eq!(pane.items_len(), 2);
10942            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10943        });
10944
10945        // There's a prompt for a path for item 4.
10946        cx.simulate_new_path_selection(|_| Some(Default::default()));
10947        close_items.await.unwrap();
10948
10949        // The requested items are closed.
10950        pane.update(cx, |pane, cx| {
10951            assert_eq!(item4.read(cx).save_count, 0);
10952            assert_eq!(item4.read(cx).save_as_count, 1);
10953            assert_eq!(item4.read(cx).reload_count, 0);
10954            assert_eq!(pane.items_len(), 1);
10955            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10956        });
10957    }
10958
10959    #[gpui::test]
10960    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10961        init_test(cx);
10962
10963        let fs = FakeFs::new(cx.executor());
10964        let project = Project::test(fs, [], cx).await;
10965        let (workspace, cx) =
10966            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10967
10968        // Create several workspace items with single project entries, and two
10969        // workspace items with multiple project entries.
10970        let single_entry_items = (0..=4)
10971            .map(|project_entry_id| {
10972                cx.new(|cx| {
10973                    TestItem::new(cx)
10974                        .with_dirty(true)
10975                        .with_project_items(&[dirty_project_item(
10976                            project_entry_id,
10977                            &format!("{project_entry_id}.txt"),
10978                            cx,
10979                        )])
10980                })
10981            })
10982            .collect::<Vec<_>>();
10983        let item_2_3 = cx.new(|cx| {
10984            TestItem::new(cx)
10985                .with_dirty(true)
10986                .with_buffer_kind(ItemBufferKind::Multibuffer)
10987                .with_project_items(&[
10988                    single_entry_items[2].read(cx).project_items[0].clone(),
10989                    single_entry_items[3].read(cx).project_items[0].clone(),
10990                ])
10991        });
10992        let item_3_4 = cx.new(|cx| {
10993            TestItem::new(cx)
10994                .with_dirty(true)
10995                .with_buffer_kind(ItemBufferKind::Multibuffer)
10996                .with_project_items(&[
10997                    single_entry_items[3].read(cx).project_items[0].clone(),
10998                    single_entry_items[4].read(cx).project_items[0].clone(),
10999                ])
11000        });
11001
11002        // Create two panes that contain the following project entries:
11003        //   left pane:
11004        //     multi-entry items:   (2, 3)
11005        //     single-entry items:  0, 2, 3, 4
11006        //   right pane:
11007        //     single-entry items:  4, 1
11008        //     multi-entry items:   (3, 4)
11009        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
11010            let left_pane = workspace.active_pane().clone();
11011            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
11012            workspace.add_item_to_active_pane(
11013                single_entry_items[0].boxed_clone(),
11014                None,
11015                true,
11016                window,
11017                cx,
11018            );
11019            workspace.add_item_to_active_pane(
11020                single_entry_items[2].boxed_clone(),
11021                None,
11022                true,
11023                window,
11024                cx,
11025            );
11026            workspace.add_item_to_active_pane(
11027                single_entry_items[3].boxed_clone(),
11028                None,
11029                true,
11030                window,
11031                cx,
11032            );
11033            workspace.add_item_to_active_pane(
11034                single_entry_items[4].boxed_clone(),
11035                None,
11036                true,
11037                window,
11038                cx,
11039            );
11040
11041            let right_pane =
11042                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
11043
11044            let boxed_clone = single_entry_items[1].boxed_clone();
11045            let right_pane = window.spawn(cx, async move |cx| {
11046                right_pane.await.inspect(|right_pane| {
11047                    right_pane
11048                        .update_in(cx, |pane, window, cx| {
11049                            pane.add_item(boxed_clone, true, true, None, window, cx);
11050                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
11051                        })
11052                        .unwrap();
11053                })
11054            });
11055
11056            (left_pane, right_pane)
11057        });
11058        let right_pane = right_pane.await.unwrap();
11059        cx.focus(&right_pane);
11060
11061        let close = right_pane.update_in(cx, |pane, window, cx| {
11062            pane.close_all_items(&CloseAllItems::default(), window, cx)
11063                .unwrap()
11064        });
11065        cx.executor().run_until_parked();
11066
11067        let msg = cx.pending_prompt().unwrap().0;
11068        assert!(msg.contains("1.txt"));
11069        assert!(!msg.contains("2.txt"));
11070        assert!(!msg.contains("3.txt"));
11071        assert!(!msg.contains("4.txt"));
11072
11073        // With best-effort close, cancelling item 1 keeps it open but items 4
11074        // and (3,4) still close since their entries exist in left pane.
11075        cx.simulate_prompt_answer("Cancel");
11076        close.await;
11077
11078        right_pane.read_with(cx, |pane, _| {
11079            assert_eq!(pane.items_len(), 1);
11080        });
11081
11082        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
11083        left_pane
11084            .update_in(cx, |left_pane, window, cx| {
11085                left_pane.close_item_by_id(
11086                    single_entry_items[3].entity_id(),
11087                    SaveIntent::Skip,
11088                    window,
11089                    cx,
11090                )
11091            })
11092            .await
11093            .unwrap();
11094
11095        let close = left_pane.update_in(cx, |pane, window, cx| {
11096            pane.close_all_items(&CloseAllItems::default(), window, cx)
11097                .unwrap()
11098        });
11099        cx.executor().run_until_parked();
11100
11101        let details = cx.pending_prompt().unwrap().1;
11102        assert!(details.contains("0.txt"));
11103        assert!(details.contains("3.txt"));
11104        assert!(details.contains("4.txt"));
11105        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
11106        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
11107        // assert!(!details.contains("2.txt"));
11108
11109        cx.simulate_prompt_answer("Save all");
11110        cx.executor().run_until_parked();
11111        close.await;
11112
11113        left_pane.read_with(cx, |pane, _| {
11114            assert_eq!(pane.items_len(), 0);
11115        });
11116    }
11117
11118    #[gpui::test]
11119    async fn test_autosave(cx: &mut gpui::TestAppContext) {
11120        init_test(cx);
11121
11122        let fs = FakeFs::new(cx.executor());
11123        let project = Project::test(fs, [], cx).await;
11124        let (workspace, cx) =
11125            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11126        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11127
11128        let item = cx.new(|cx| {
11129            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11130        });
11131        let item_id = item.entity_id();
11132        workspace.update_in(cx, |workspace, window, cx| {
11133            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11134        });
11135
11136        // Autosave on window change.
11137        item.update(cx, |item, cx| {
11138            SettingsStore::update_global(cx, |settings, cx| {
11139                settings.update_user_settings(cx, |settings| {
11140                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
11141                })
11142            });
11143            item.is_dirty = true;
11144        });
11145
11146        // Deactivating the window saves the file.
11147        cx.deactivate_window();
11148        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11149
11150        // Re-activating the window doesn't save the file.
11151        cx.update(|window, _| window.activate_window());
11152        cx.executor().run_until_parked();
11153        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11154
11155        // Autosave on focus change.
11156        item.update_in(cx, |item, window, cx| {
11157            cx.focus_self(window);
11158            SettingsStore::update_global(cx, |settings, cx| {
11159                settings.update_user_settings(cx, |settings| {
11160                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11161                })
11162            });
11163            item.is_dirty = true;
11164        });
11165        // Blurring the item saves the file.
11166        item.update_in(cx, |_, window, _| window.blur());
11167        cx.executor().run_until_parked();
11168        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
11169
11170        // Deactivating the window still saves the file.
11171        item.update_in(cx, |item, window, cx| {
11172            cx.focus_self(window);
11173            item.is_dirty = true;
11174        });
11175        cx.deactivate_window();
11176        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
11177
11178        // Autosave after delay.
11179        item.update(cx, |item, cx| {
11180            SettingsStore::update_global(cx, |settings, cx| {
11181                settings.update_user_settings(cx, |settings| {
11182                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
11183                        milliseconds: 500.into(),
11184                    });
11185                })
11186            });
11187            item.is_dirty = true;
11188            cx.emit(ItemEvent::Edit);
11189        });
11190
11191        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11192        cx.executor().advance_clock(Duration::from_millis(250));
11193        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11194
11195        // After delay expires, the file is saved.
11196        cx.executor().advance_clock(Duration::from_millis(250));
11197        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11198
11199        // Autosave after delay, should save earlier than delay if tab is closed
11200        item.update(cx, |item, cx| {
11201            item.is_dirty = true;
11202            cx.emit(ItemEvent::Edit);
11203        });
11204        cx.executor().advance_clock(Duration::from_millis(250));
11205        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11206
11207        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11208        pane.update_in(cx, |pane, window, cx| {
11209            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11210        })
11211        .await
11212        .unwrap();
11213        assert!(!cx.has_pending_prompt());
11214        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11215
11216        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11217        workspace.update_in(cx, |workspace, window, cx| {
11218            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11219        });
11220        item.update_in(cx, |item, _window, cx| {
11221            item.is_dirty = true;
11222            for project_item in &mut item.project_items {
11223                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11224            }
11225        });
11226        cx.run_until_parked();
11227        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11228
11229        // Autosave on focus change, ensuring closing the tab counts as such.
11230        item.update(cx, |item, cx| {
11231            SettingsStore::update_global(cx, |settings, cx| {
11232                settings.update_user_settings(cx, |settings| {
11233                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11234                })
11235            });
11236            item.is_dirty = true;
11237            for project_item in &mut item.project_items {
11238                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11239            }
11240        });
11241
11242        pane.update_in(cx, |pane, window, cx| {
11243            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11244        })
11245        .await
11246        .unwrap();
11247        assert!(!cx.has_pending_prompt());
11248        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11249
11250        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11251        workspace.update_in(cx, |workspace, window, cx| {
11252            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11253        });
11254        item.update_in(cx, |item, window, cx| {
11255            item.project_items[0].update(cx, |item, _| {
11256                item.entry_id = None;
11257            });
11258            item.is_dirty = true;
11259            window.blur();
11260        });
11261        cx.run_until_parked();
11262        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11263
11264        // Ensure autosave is prevented for deleted files also when closing the buffer.
11265        let _close_items = pane.update_in(cx, |pane, window, cx| {
11266            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11267        });
11268        cx.run_until_parked();
11269        assert!(cx.has_pending_prompt());
11270        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11271    }
11272
11273    #[gpui::test]
11274    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11275        init_test(cx);
11276
11277        let fs = FakeFs::new(cx.executor());
11278        let project = Project::test(fs, [], cx).await;
11279        let (workspace, cx) =
11280            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11281
11282        // Create a multibuffer-like item with two child focus handles,
11283        // simulating individual buffer editors within a multibuffer.
11284        let item = cx.new(|cx| {
11285            TestItem::new(cx)
11286                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11287                .with_child_focus_handles(2, cx)
11288        });
11289        workspace.update_in(cx, |workspace, window, cx| {
11290            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11291        });
11292
11293        // Set autosave to OnFocusChange and focus the first child handle,
11294        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11295        item.update_in(cx, |item, window, cx| {
11296            SettingsStore::update_global(cx, |settings, cx| {
11297                settings.update_user_settings(cx, |settings| {
11298                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11299                })
11300            });
11301            item.is_dirty = true;
11302            window.focus(&item.child_focus_handles[0], cx);
11303        });
11304        cx.executor().run_until_parked();
11305        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11306
11307        // Moving focus from one child to another within the same item should
11308        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11309        item.update_in(cx, |item, window, cx| {
11310            window.focus(&item.child_focus_handles[1], cx);
11311        });
11312        cx.executor().run_until_parked();
11313        item.read_with(cx, |item, _| {
11314            assert_eq!(
11315                item.save_count, 0,
11316                "Switching focus between children within the same item should not autosave"
11317            );
11318        });
11319
11320        // Blurring the item saves the file. This is the core regression scenario:
11321        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11322        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11323        // the leaf is always a child focus handle, so `on_blur` never detected
11324        // focus leaving the item.
11325        item.update_in(cx, |_, window, _| window.blur());
11326        cx.executor().run_until_parked();
11327        item.read_with(cx, |item, _| {
11328            assert_eq!(
11329                item.save_count, 1,
11330                "Blurring should trigger autosave when focus was on a child of the item"
11331            );
11332        });
11333
11334        // Deactivating the window should also trigger autosave when a child of
11335        // the multibuffer item currently owns focus.
11336        item.update_in(cx, |item, window, cx| {
11337            item.is_dirty = true;
11338            window.focus(&item.child_focus_handles[0], cx);
11339        });
11340        cx.executor().run_until_parked();
11341        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11342
11343        cx.deactivate_window();
11344        item.read_with(cx, |item, _| {
11345            assert_eq!(
11346                item.save_count, 2,
11347                "Deactivating window should trigger autosave when focus was on a child"
11348            );
11349        });
11350    }
11351
11352    #[gpui::test]
11353    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11354        init_test(cx);
11355
11356        let fs = FakeFs::new(cx.executor());
11357
11358        let project = Project::test(fs, [], cx).await;
11359        let (workspace, cx) =
11360            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11361
11362        let item = cx.new(|cx| {
11363            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11364        });
11365        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11366        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11367        let toolbar_notify_count = Rc::new(RefCell::new(0));
11368
11369        workspace.update_in(cx, |workspace, window, cx| {
11370            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11371            let toolbar_notification_count = toolbar_notify_count.clone();
11372            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11373                *toolbar_notification_count.borrow_mut() += 1
11374            })
11375            .detach();
11376        });
11377
11378        pane.read_with(cx, |pane, _| {
11379            assert!(!pane.can_navigate_backward());
11380            assert!(!pane.can_navigate_forward());
11381        });
11382
11383        item.update_in(cx, |item, _, cx| {
11384            item.set_state("one".to_string(), cx);
11385        });
11386
11387        // Toolbar must be notified to re-render the navigation buttons
11388        assert_eq!(*toolbar_notify_count.borrow(), 1);
11389
11390        pane.read_with(cx, |pane, _| {
11391            assert!(pane.can_navigate_backward());
11392            assert!(!pane.can_navigate_forward());
11393        });
11394
11395        workspace
11396            .update_in(cx, |workspace, window, cx| {
11397                workspace.go_back(pane.downgrade(), window, cx)
11398            })
11399            .await
11400            .unwrap();
11401
11402        assert_eq!(*toolbar_notify_count.borrow(), 2);
11403        pane.read_with(cx, |pane, _| {
11404            assert!(!pane.can_navigate_backward());
11405            assert!(pane.can_navigate_forward());
11406        });
11407    }
11408
11409    /// Tests that the navigation history deduplicates entries for the same item.
11410    ///
11411    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11412    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11413    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11414    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11415    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11416    ///
11417    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11418    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11419    #[gpui::test]
11420    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11421        init_test(cx);
11422
11423        let fs = FakeFs::new(cx.executor());
11424        let project = Project::test(fs, [], cx).await;
11425        let (workspace, cx) =
11426            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11427
11428        let item_a = cx.new(|cx| {
11429            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11430        });
11431        let item_b = cx.new(|cx| {
11432            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11433        });
11434        let item_c = cx.new(|cx| {
11435            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11436        });
11437
11438        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11439
11440        workspace.update_in(cx, |workspace, window, cx| {
11441            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11442            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11443            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11444        });
11445
11446        workspace.update_in(cx, |workspace, window, cx| {
11447            workspace.activate_item(&item_a, false, false, window, cx);
11448        });
11449        cx.run_until_parked();
11450
11451        workspace.update_in(cx, |workspace, window, cx| {
11452            workspace.activate_item(&item_b, false, false, window, cx);
11453        });
11454        cx.run_until_parked();
11455
11456        workspace.update_in(cx, |workspace, window, cx| {
11457            workspace.activate_item(&item_a, false, false, window, cx);
11458        });
11459        cx.run_until_parked();
11460
11461        workspace.update_in(cx, |workspace, window, cx| {
11462            workspace.activate_item(&item_b, false, false, window, cx);
11463        });
11464        cx.run_until_parked();
11465
11466        workspace.update_in(cx, |workspace, window, cx| {
11467            workspace.activate_item(&item_a, false, false, window, cx);
11468        });
11469        cx.run_until_parked();
11470
11471        workspace.update_in(cx, |workspace, window, cx| {
11472            workspace.activate_item(&item_b, false, false, window, cx);
11473        });
11474        cx.run_until_parked();
11475
11476        workspace.update_in(cx, |workspace, window, cx| {
11477            workspace.activate_item(&item_c, false, false, window, cx);
11478        });
11479        cx.run_until_parked();
11480
11481        let backward_count = pane.read_with(cx, |pane, cx| {
11482            let mut count = 0;
11483            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11484                count += 1;
11485            });
11486            count
11487        });
11488        assert!(
11489            backward_count <= 4,
11490            "Should have at most 4 entries, got {}",
11491            backward_count
11492        );
11493
11494        workspace
11495            .update_in(cx, |workspace, window, cx| {
11496                workspace.go_back(pane.downgrade(), window, cx)
11497            })
11498            .await
11499            .unwrap();
11500
11501        let active_item = workspace.read_with(cx, |workspace, cx| {
11502            workspace.active_item(cx).unwrap().item_id()
11503        });
11504        assert_eq!(
11505            active_item,
11506            item_b.entity_id(),
11507            "After first go_back, should be at item B"
11508        );
11509
11510        workspace
11511            .update_in(cx, |workspace, window, cx| {
11512                workspace.go_back(pane.downgrade(), window, cx)
11513            })
11514            .await
11515            .unwrap();
11516
11517        let active_item = workspace.read_with(cx, |workspace, cx| {
11518            workspace.active_item(cx).unwrap().item_id()
11519        });
11520        assert_eq!(
11521            active_item,
11522            item_a.entity_id(),
11523            "After second go_back, should be at item A"
11524        );
11525
11526        pane.read_with(cx, |pane, _| {
11527            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11528        });
11529    }
11530
11531    #[gpui::test]
11532    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11533        init_test(cx);
11534        let fs = FakeFs::new(cx.executor());
11535        let project = Project::test(fs, [], cx).await;
11536        let (multi_workspace, cx) =
11537            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11538        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11539
11540        workspace.update_in(cx, |workspace, window, cx| {
11541            let first_item = cx.new(|cx| {
11542                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11543            });
11544            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11545            workspace.split_pane(
11546                workspace.active_pane().clone(),
11547                SplitDirection::Right,
11548                window,
11549                cx,
11550            );
11551            workspace.split_pane(
11552                workspace.active_pane().clone(),
11553                SplitDirection::Right,
11554                window,
11555                cx,
11556            );
11557        });
11558
11559        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11560            let panes = workspace.center.panes();
11561            assert!(panes.len() >= 2);
11562            (
11563                panes.first().expect("at least one pane").entity_id(),
11564                panes.last().expect("at least one pane").entity_id(),
11565            )
11566        });
11567
11568        workspace.update_in(cx, |workspace, window, cx| {
11569            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11570        });
11571        workspace.update(cx, |workspace, _| {
11572            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11573            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11574        });
11575
11576        cx.dispatch_action(ActivateLastPane);
11577
11578        workspace.update(cx, |workspace, _| {
11579            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11580        });
11581    }
11582
11583    #[gpui::test]
11584    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11585        init_test(cx);
11586        let fs = FakeFs::new(cx.executor());
11587
11588        let project = Project::test(fs, [], cx).await;
11589        let (workspace, cx) =
11590            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11591
11592        let panel = workspace.update_in(cx, |workspace, window, cx| {
11593            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11594            workspace.add_panel(panel.clone(), window, cx);
11595
11596            workspace
11597                .right_dock()
11598                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11599
11600            panel
11601        });
11602
11603        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11604        pane.update_in(cx, |pane, window, cx| {
11605            let item = cx.new(TestItem::new);
11606            pane.add_item(Box::new(item), true, true, None, window, cx);
11607        });
11608
11609        // Transfer focus from center to panel
11610        workspace.update_in(cx, |workspace, window, cx| {
11611            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11612        });
11613
11614        workspace.update_in(cx, |workspace, window, cx| {
11615            assert!(workspace.right_dock().read(cx).is_open());
11616            assert!(!panel.is_zoomed(window, cx));
11617            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11618        });
11619
11620        // Transfer focus from panel to center
11621        workspace.update_in(cx, |workspace, window, cx| {
11622            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11623        });
11624
11625        workspace.update_in(cx, |workspace, window, cx| {
11626            assert!(workspace.right_dock().read(cx).is_open());
11627            assert!(!panel.is_zoomed(window, cx));
11628            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11629            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11630        });
11631
11632        // Close the dock
11633        workspace.update_in(cx, |workspace, window, cx| {
11634            workspace.toggle_dock(DockPosition::Right, window, cx);
11635        });
11636
11637        workspace.update_in(cx, |workspace, window, cx| {
11638            assert!(!workspace.right_dock().read(cx).is_open());
11639            assert!(!panel.is_zoomed(window, cx));
11640            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11641            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11642        });
11643
11644        // Open the dock
11645        workspace.update_in(cx, |workspace, window, cx| {
11646            workspace.toggle_dock(DockPosition::Right, window, cx);
11647        });
11648
11649        workspace.update_in(cx, |workspace, window, cx| {
11650            assert!(workspace.right_dock().read(cx).is_open());
11651            assert!(!panel.is_zoomed(window, cx));
11652            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11653        });
11654
11655        // Focus and zoom panel
11656        panel.update_in(cx, |panel, window, cx| {
11657            cx.focus_self(window);
11658            panel.set_zoomed(true, window, cx)
11659        });
11660
11661        workspace.update_in(cx, |workspace, window, cx| {
11662            assert!(workspace.right_dock().read(cx).is_open());
11663            assert!(panel.is_zoomed(window, cx));
11664            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11665        });
11666
11667        // Transfer focus to the center closes the dock
11668        workspace.update_in(cx, |workspace, window, cx| {
11669            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11670        });
11671
11672        workspace.update_in(cx, |workspace, window, cx| {
11673            assert!(!workspace.right_dock().read(cx).is_open());
11674            assert!(panel.is_zoomed(window, cx));
11675            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11676        });
11677
11678        // Transferring focus back to the panel keeps it zoomed
11679        workspace.update_in(cx, |workspace, window, cx| {
11680            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11681        });
11682
11683        workspace.update_in(cx, |workspace, window, cx| {
11684            assert!(workspace.right_dock().read(cx).is_open());
11685            assert!(panel.is_zoomed(window, cx));
11686            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11687        });
11688
11689        // Close the dock while it is zoomed
11690        workspace.update_in(cx, |workspace, window, cx| {
11691            workspace.toggle_dock(DockPosition::Right, window, cx)
11692        });
11693
11694        workspace.update_in(cx, |workspace, window, cx| {
11695            assert!(!workspace.right_dock().read(cx).is_open());
11696            assert!(panel.is_zoomed(window, cx));
11697            assert!(workspace.zoomed.is_none());
11698            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11699        });
11700
11701        // Opening the dock, when it's zoomed, retains focus
11702        workspace.update_in(cx, |workspace, window, cx| {
11703            workspace.toggle_dock(DockPosition::Right, window, cx)
11704        });
11705
11706        workspace.update_in(cx, |workspace, window, cx| {
11707            assert!(workspace.right_dock().read(cx).is_open());
11708            assert!(panel.is_zoomed(window, cx));
11709            assert!(workspace.zoomed.is_some());
11710            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11711        });
11712
11713        // Unzoom and close the panel, zoom the active pane.
11714        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11715        workspace.update_in(cx, |workspace, window, cx| {
11716            workspace.toggle_dock(DockPosition::Right, window, cx)
11717        });
11718        pane.update_in(cx, |pane, window, cx| {
11719            pane.toggle_zoom(&Default::default(), window, cx)
11720        });
11721
11722        // Opening a dock unzooms the pane.
11723        workspace.update_in(cx, |workspace, window, cx| {
11724            workspace.toggle_dock(DockPosition::Right, window, cx)
11725        });
11726        workspace.update_in(cx, |workspace, window, cx| {
11727            let pane = pane.read(cx);
11728            assert!(!pane.is_zoomed());
11729            assert!(!pane.focus_handle(cx).is_focused(window));
11730            assert!(workspace.right_dock().read(cx).is_open());
11731            assert!(workspace.zoomed.is_none());
11732        });
11733    }
11734
11735    #[gpui::test]
11736    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11737        init_test(cx);
11738        let fs = FakeFs::new(cx.executor());
11739
11740        let project = Project::test(fs, [], cx).await;
11741        let (workspace, cx) =
11742            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11743
11744        let panel = workspace.update_in(cx, |workspace, window, cx| {
11745            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11746            workspace.add_panel(panel.clone(), window, cx);
11747            panel
11748        });
11749
11750        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11751        pane.update_in(cx, |pane, window, cx| {
11752            let item = cx.new(TestItem::new);
11753            pane.add_item(Box::new(item), true, true, None, window, cx);
11754        });
11755
11756        // Enable close_panel_on_toggle
11757        cx.update_global(|store: &mut SettingsStore, cx| {
11758            store.update_user_settings(cx, |settings| {
11759                settings.workspace.close_panel_on_toggle = Some(true);
11760            });
11761        });
11762
11763        // Panel starts closed. Toggling should open and focus it.
11764        workspace.update_in(cx, |workspace, window, cx| {
11765            assert!(!workspace.right_dock().read(cx).is_open());
11766            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11767        });
11768
11769        workspace.update_in(cx, |workspace, window, cx| {
11770            assert!(
11771                workspace.right_dock().read(cx).is_open(),
11772                "Dock should be open after toggling from center"
11773            );
11774            assert!(
11775                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11776                "Panel should be focused after toggling from center"
11777            );
11778        });
11779
11780        // Panel is open and focused. Toggling should close the panel and
11781        // return focus to the center.
11782        workspace.update_in(cx, |workspace, window, cx| {
11783            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11784        });
11785
11786        workspace.update_in(cx, |workspace, window, cx| {
11787            assert!(
11788                !workspace.right_dock().read(cx).is_open(),
11789                "Dock should be closed after toggling from focused panel"
11790            );
11791            assert!(
11792                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11793                "Panel should not be focused after toggling from focused panel"
11794            );
11795        });
11796
11797        // Open the dock and focus something else so the panel is open but not
11798        // focused. Toggling should focus the panel (not close it).
11799        workspace.update_in(cx, |workspace, window, cx| {
11800            workspace
11801                .right_dock()
11802                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11803            window.focus(&pane.read(cx).focus_handle(cx), cx);
11804        });
11805
11806        workspace.update_in(cx, |workspace, window, cx| {
11807            assert!(workspace.right_dock().read(cx).is_open());
11808            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11809            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11810        });
11811
11812        workspace.update_in(cx, |workspace, window, cx| {
11813            assert!(
11814                workspace.right_dock().read(cx).is_open(),
11815                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11816            );
11817            assert!(
11818                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11819                "Panel should be focused after toggling an open-but-unfocused panel"
11820            );
11821        });
11822
11823        // Now disable the setting and verify the original behavior: toggling
11824        // from a focused panel moves focus to center but leaves the dock open.
11825        cx.update_global(|store: &mut SettingsStore, cx| {
11826            store.update_user_settings(cx, |settings| {
11827                settings.workspace.close_panel_on_toggle = Some(false);
11828            });
11829        });
11830
11831        workspace.update_in(cx, |workspace, window, cx| {
11832            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11833        });
11834
11835        workspace.update_in(cx, |workspace, window, cx| {
11836            assert!(
11837                workspace.right_dock().read(cx).is_open(),
11838                "Dock should remain open when setting is disabled"
11839            );
11840            assert!(
11841                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11842                "Panel should not be focused after toggling with setting disabled"
11843            );
11844        });
11845    }
11846
11847    #[gpui::test]
11848    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11849        init_test(cx);
11850        let fs = FakeFs::new(cx.executor());
11851
11852        let project = Project::test(fs, [], cx).await;
11853        let (workspace, cx) =
11854            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11855
11856        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11857            workspace.active_pane().clone()
11858        });
11859
11860        // Add an item to the pane so it can be zoomed
11861        workspace.update_in(cx, |workspace, window, cx| {
11862            let item = cx.new(TestItem::new);
11863            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11864        });
11865
11866        // Initially not zoomed
11867        workspace.update_in(cx, |workspace, _window, cx| {
11868            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11869            assert!(
11870                workspace.zoomed.is_none(),
11871                "Workspace should track no zoomed pane"
11872            );
11873            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11874        });
11875
11876        // Zoom In
11877        pane.update_in(cx, |pane, window, cx| {
11878            pane.zoom_in(&crate::ZoomIn, window, cx);
11879        });
11880
11881        workspace.update_in(cx, |workspace, window, cx| {
11882            assert!(
11883                pane.read(cx).is_zoomed(),
11884                "Pane should be zoomed after ZoomIn"
11885            );
11886            assert!(
11887                workspace.zoomed.is_some(),
11888                "Workspace should track the zoomed pane"
11889            );
11890            assert!(
11891                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11892                "ZoomIn should focus the pane"
11893            );
11894        });
11895
11896        // Zoom In again is a no-op
11897        pane.update_in(cx, |pane, window, cx| {
11898            pane.zoom_in(&crate::ZoomIn, window, cx);
11899        });
11900
11901        workspace.update_in(cx, |workspace, window, cx| {
11902            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11903            assert!(
11904                workspace.zoomed.is_some(),
11905                "Workspace still tracks zoomed pane"
11906            );
11907            assert!(
11908                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11909                "Pane remains focused after repeated ZoomIn"
11910            );
11911        });
11912
11913        // Zoom Out
11914        pane.update_in(cx, |pane, window, cx| {
11915            pane.zoom_out(&crate::ZoomOut, window, cx);
11916        });
11917
11918        workspace.update_in(cx, |workspace, _window, cx| {
11919            assert!(
11920                !pane.read(cx).is_zoomed(),
11921                "Pane should unzoom after ZoomOut"
11922            );
11923            assert!(
11924                workspace.zoomed.is_none(),
11925                "Workspace clears zoom tracking after ZoomOut"
11926            );
11927        });
11928
11929        // Zoom Out again is a no-op
11930        pane.update_in(cx, |pane, window, cx| {
11931            pane.zoom_out(&crate::ZoomOut, window, cx);
11932        });
11933
11934        workspace.update_in(cx, |workspace, _window, cx| {
11935            assert!(
11936                !pane.read(cx).is_zoomed(),
11937                "Second ZoomOut keeps pane unzoomed"
11938            );
11939            assert!(
11940                workspace.zoomed.is_none(),
11941                "Workspace remains without zoomed pane"
11942            );
11943        });
11944    }
11945
11946    #[gpui::test]
11947    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
11948        init_test(cx);
11949        let fs = FakeFs::new(cx.executor());
11950
11951        let project = Project::test(fs, [], cx).await;
11952        let (workspace, cx) =
11953            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11954        workspace.update_in(cx, |workspace, window, cx| {
11955            // Open two docks
11956            let left_dock = workspace.dock_at_position(DockPosition::Left);
11957            let right_dock = workspace.dock_at_position(DockPosition::Right);
11958
11959            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11960            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11961
11962            assert!(left_dock.read(cx).is_open());
11963            assert!(right_dock.read(cx).is_open());
11964        });
11965
11966        workspace.update_in(cx, |workspace, window, cx| {
11967            // Toggle all docks - should close both
11968            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11969
11970            let left_dock = workspace.dock_at_position(DockPosition::Left);
11971            let right_dock = workspace.dock_at_position(DockPosition::Right);
11972            assert!(!left_dock.read(cx).is_open());
11973            assert!(!right_dock.read(cx).is_open());
11974        });
11975
11976        workspace.update_in(cx, |workspace, window, cx| {
11977            // Toggle again - should reopen both
11978            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11979
11980            let left_dock = workspace.dock_at_position(DockPosition::Left);
11981            let right_dock = workspace.dock_at_position(DockPosition::Right);
11982            assert!(left_dock.read(cx).is_open());
11983            assert!(right_dock.read(cx).is_open());
11984        });
11985    }
11986
11987    #[gpui::test]
11988    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
11989        init_test(cx);
11990        let fs = FakeFs::new(cx.executor());
11991
11992        let project = Project::test(fs, [], cx).await;
11993        let (workspace, cx) =
11994            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11995        workspace.update_in(cx, |workspace, window, cx| {
11996            // Open two docks
11997            let left_dock = workspace.dock_at_position(DockPosition::Left);
11998            let right_dock = workspace.dock_at_position(DockPosition::Right);
11999
12000            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12001            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12002
12003            assert!(left_dock.read(cx).is_open());
12004            assert!(right_dock.read(cx).is_open());
12005        });
12006
12007        workspace.update_in(cx, |workspace, window, cx| {
12008            // Close them manually
12009            workspace.toggle_dock(DockPosition::Left, window, cx);
12010            workspace.toggle_dock(DockPosition::Right, window, cx);
12011
12012            let left_dock = workspace.dock_at_position(DockPosition::Left);
12013            let right_dock = workspace.dock_at_position(DockPosition::Right);
12014            assert!(!left_dock.read(cx).is_open());
12015            assert!(!right_dock.read(cx).is_open());
12016        });
12017
12018        workspace.update_in(cx, |workspace, window, cx| {
12019            // Toggle all docks - only last closed (right dock) should reopen
12020            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12021
12022            let left_dock = workspace.dock_at_position(DockPosition::Left);
12023            let right_dock = workspace.dock_at_position(DockPosition::Right);
12024            assert!(!left_dock.read(cx).is_open());
12025            assert!(right_dock.read(cx).is_open());
12026        });
12027    }
12028
12029    #[gpui::test]
12030    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
12031        init_test(cx);
12032        let fs = FakeFs::new(cx.executor());
12033        let project = Project::test(fs, [], cx).await;
12034        let (multi_workspace, cx) =
12035            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12036        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12037
12038        // Open two docks (left and right) with one panel each
12039        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
12040            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12041            workspace.add_panel(left_panel.clone(), window, cx);
12042
12043            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12044            workspace.add_panel(right_panel.clone(), window, cx);
12045
12046            workspace.toggle_dock(DockPosition::Left, window, cx);
12047            workspace.toggle_dock(DockPosition::Right, window, cx);
12048
12049            // Verify initial state
12050            assert!(
12051                workspace.left_dock().read(cx).is_open(),
12052                "Left dock should be open"
12053            );
12054            assert_eq!(
12055                workspace
12056                    .left_dock()
12057                    .read(cx)
12058                    .visible_panel()
12059                    .unwrap()
12060                    .panel_id(),
12061                left_panel.panel_id(),
12062                "Left panel should be visible in left dock"
12063            );
12064            assert!(
12065                workspace.right_dock().read(cx).is_open(),
12066                "Right dock should be open"
12067            );
12068            assert_eq!(
12069                workspace
12070                    .right_dock()
12071                    .read(cx)
12072                    .visible_panel()
12073                    .unwrap()
12074                    .panel_id(),
12075                right_panel.panel_id(),
12076                "Right panel should be visible in right dock"
12077            );
12078            assert!(
12079                !workspace.bottom_dock().read(cx).is_open(),
12080                "Bottom dock should be closed"
12081            );
12082
12083            (left_panel, right_panel)
12084        });
12085
12086        // Focus the left panel and move it to the next position (bottom dock)
12087        workspace.update_in(cx, |workspace, window, cx| {
12088            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
12089            assert!(
12090                left_panel.read(cx).focus_handle(cx).is_focused(window),
12091                "Left panel should be focused"
12092            );
12093        });
12094
12095        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12096
12097        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
12098        workspace.update(cx, |workspace, cx| {
12099            assert!(
12100                !workspace.left_dock().read(cx).is_open(),
12101                "Left dock should be closed"
12102            );
12103            assert!(
12104                workspace.bottom_dock().read(cx).is_open(),
12105                "Bottom dock should now be open"
12106            );
12107            assert_eq!(
12108                left_panel.read(cx).position,
12109                DockPosition::Bottom,
12110                "Left panel should now be in the bottom dock"
12111            );
12112            assert_eq!(
12113                workspace
12114                    .bottom_dock()
12115                    .read(cx)
12116                    .visible_panel()
12117                    .unwrap()
12118                    .panel_id(),
12119                left_panel.panel_id(),
12120                "Left panel should be the visible panel in the bottom dock"
12121            );
12122        });
12123
12124        // Toggle all docks off
12125        workspace.update_in(cx, |workspace, window, cx| {
12126            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12127            assert!(
12128                !workspace.left_dock().read(cx).is_open(),
12129                "Left dock should be closed"
12130            );
12131            assert!(
12132                !workspace.right_dock().read(cx).is_open(),
12133                "Right dock should be closed"
12134            );
12135            assert!(
12136                !workspace.bottom_dock().read(cx).is_open(),
12137                "Bottom dock should be closed"
12138            );
12139        });
12140
12141        // Toggle all docks back on and verify positions are restored
12142        workspace.update_in(cx, |workspace, window, cx| {
12143            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12144            assert!(
12145                !workspace.left_dock().read(cx).is_open(),
12146                "Left dock should remain closed"
12147            );
12148            assert!(
12149                workspace.right_dock().read(cx).is_open(),
12150                "Right dock should remain open"
12151            );
12152            assert!(
12153                workspace.bottom_dock().read(cx).is_open(),
12154                "Bottom dock should remain open"
12155            );
12156            assert_eq!(
12157                left_panel.read(cx).position,
12158                DockPosition::Bottom,
12159                "Left panel should remain in the bottom dock"
12160            );
12161            assert_eq!(
12162                right_panel.read(cx).position,
12163                DockPosition::Right,
12164                "Right panel should remain in the right dock"
12165            );
12166            assert_eq!(
12167                workspace
12168                    .bottom_dock()
12169                    .read(cx)
12170                    .visible_panel()
12171                    .unwrap()
12172                    .panel_id(),
12173                left_panel.panel_id(),
12174                "Left panel should be the visible panel in the right dock"
12175            );
12176        });
12177    }
12178
12179    #[gpui::test]
12180    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
12181        init_test(cx);
12182
12183        let fs = FakeFs::new(cx.executor());
12184
12185        let project = Project::test(fs, None, cx).await;
12186        let (workspace, cx) =
12187            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12188
12189        // Let's arrange the panes like this:
12190        //
12191        // +-----------------------+
12192        // |         top           |
12193        // +------+--------+-------+
12194        // | left | center | right |
12195        // +------+--------+-------+
12196        // |        bottom         |
12197        // +-----------------------+
12198
12199        let top_item = cx.new(|cx| {
12200            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12201        });
12202        let bottom_item = cx.new(|cx| {
12203            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12204        });
12205        let left_item = cx.new(|cx| {
12206            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12207        });
12208        let right_item = cx.new(|cx| {
12209            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12210        });
12211        let center_item = cx.new(|cx| {
12212            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12213        });
12214
12215        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12216            let top_pane_id = workspace.active_pane().entity_id();
12217            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12218            workspace.split_pane(
12219                workspace.active_pane().clone(),
12220                SplitDirection::Down,
12221                window,
12222                cx,
12223            );
12224            top_pane_id
12225        });
12226        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12227            let bottom_pane_id = workspace.active_pane().entity_id();
12228            workspace.add_item_to_active_pane(
12229                Box::new(bottom_item.clone()),
12230                None,
12231                false,
12232                window,
12233                cx,
12234            );
12235            workspace.split_pane(
12236                workspace.active_pane().clone(),
12237                SplitDirection::Up,
12238                window,
12239                cx,
12240            );
12241            bottom_pane_id
12242        });
12243        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12244            let left_pane_id = workspace.active_pane().entity_id();
12245            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12246            workspace.split_pane(
12247                workspace.active_pane().clone(),
12248                SplitDirection::Right,
12249                window,
12250                cx,
12251            );
12252            left_pane_id
12253        });
12254        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12255            let right_pane_id = workspace.active_pane().entity_id();
12256            workspace.add_item_to_active_pane(
12257                Box::new(right_item.clone()),
12258                None,
12259                false,
12260                window,
12261                cx,
12262            );
12263            workspace.split_pane(
12264                workspace.active_pane().clone(),
12265                SplitDirection::Left,
12266                window,
12267                cx,
12268            );
12269            right_pane_id
12270        });
12271        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12272            let center_pane_id = workspace.active_pane().entity_id();
12273            workspace.add_item_to_active_pane(
12274                Box::new(center_item.clone()),
12275                None,
12276                false,
12277                window,
12278                cx,
12279            );
12280            center_pane_id
12281        });
12282        cx.executor().run_until_parked();
12283
12284        workspace.update_in(cx, |workspace, window, cx| {
12285            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12286
12287            // Join into next from center pane into right
12288            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12289        });
12290
12291        workspace.update_in(cx, |workspace, window, cx| {
12292            let active_pane = workspace.active_pane();
12293            assert_eq!(right_pane_id, active_pane.entity_id());
12294            assert_eq!(2, active_pane.read(cx).items_len());
12295            let item_ids_in_pane =
12296                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12297            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12298            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12299
12300            // Join into next from right pane into bottom
12301            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12302        });
12303
12304        workspace.update_in(cx, |workspace, window, cx| {
12305            let active_pane = workspace.active_pane();
12306            assert_eq!(bottom_pane_id, active_pane.entity_id());
12307            assert_eq!(3, active_pane.read(cx).items_len());
12308            let item_ids_in_pane =
12309                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12310            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12311            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12312            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12313
12314            // Join into next from bottom pane into left
12315            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12316        });
12317
12318        workspace.update_in(cx, |workspace, window, cx| {
12319            let active_pane = workspace.active_pane();
12320            assert_eq!(left_pane_id, active_pane.entity_id());
12321            assert_eq!(4, active_pane.read(cx).items_len());
12322            let item_ids_in_pane =
12323                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12324            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12325            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12326            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12327            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12328
12329            // Join into next from left pane into top
12330            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12331        });
12332
12333        workspace.update_in(cx, |workspace, window, cx| {
12334            let active_pane = workspace.active_pane();
12335            assert_eq!(top_pane_id, active_pane.entity_id());
12336            assert_eq!(5, active_pane.read(cx).items_len());
12337            let item_ids_in_pane =
12338                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12339            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12340            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12341            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12342            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12343            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12344
12345            // Single pane left: no-op
12346            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12347        });
12348
12349        workspace.update(cx, |workspace, _cx| {
12350            let active_pane = workspace.active_pane();
12351            assert_eq!(top_pane_id, active_pane.entity_id());
12352        });
12353    }
12354
12355    fn add_an_item_to_active_pane(
12356        cx: &mut VisualTestContext,
12357        workspace: &Entity<Workspace>,
12358        item_id: u64,
12359    ) -> Entity<TestItem> {
12360        let item = cx.new(|cx| {
12361            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12362                item_id,
12363                "item{item_id}.txt",
12364                cx,
12365            )])
12366        });
12367        workspace.update_in(cx, |workspace, window, cx| {
12368            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12369        });
12370        item
12371    }
12372
12373    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12374        workspace.update_in(cx, |workspace, window, cx| {
12375            workspace.split_pane(
12376                workspace.active_pane().clone(),
12377                SplitDirection::Right,
12378                window,
12379                cx,
12380            )
12381        })
12382    }
12383
12384    #[gpui::test]
12385    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12386        init_test(cx);
12387        let fs = FakeFs::new(cx.executor());
12388        let project = Project::test(fs, None, cx).await;
12389        let (workspace, cx) =
12390            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12391
12392        add_an_item_to_active_pane(cx, &workspace, 1);
12393        split_pane(cx, &workspace);
12394        add_an_item_to_active_pane(cx, &workspace, 2);
12395        split_pane(cx, &workspace); // empty pane
12396        split_pane(cx, &workspace);
12397        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12398
12399        cx.executor().run_until_parked();
12400
12401        workspace.update(cx, |workspace, cx| {
12402            let num_panes = workspace.panes().len();
12403            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12404            let active_item = workspace
12405                .active_pane()
12406                .read(cx)
12407                .active_item()
12408                .expect("item is in focus");
12409
12410            assert_eq!(num_panes, 4);
12411            assert_eq!(num_items_in_current_pane, 1);
12412            assert_eq!(active_item.item_id(), last_item.item_id());
12413        });
12414
12415        workspace.update_in(cx, |workspace, window, cx| {
12416            workspace.join_all_panes(window, cx);
12417        });
12418
12419        workspace.update(cx, |workspace, cx| {
12420            let num_panes = workspace.panes().len();
12421            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12422            let active_item = workspace
12423                .active_pane()
12424                .read(cx)
12425                .active_item()
12426                .expect("item is in focus");
12427
12428            assert_eq!(num_panes, 1);
12429            assert_eq!(num_items_in_current_pane, 3);
12430            assert_eq!(active_item.item_id(), last_item.item_id());
12431        });
12432    }
12433
12434    #[gpui::test]
12435    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12436        init_test(cx);
12437        let fs = FakeFs::new(cx.executor());
12438
12439        let project = Project::test(fs, [], cx).await;
12440        let (multi_workspace, cx) =
12441            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12442        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12443
12444        workspace.update(cx, |workspace, _cx| {
12445            workspace.bounds.size.width = px(800.);
12446        });
12447
12448        workspace.update_in(cx, |workspace, window, cx| {
12449            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12450            workspace.add_panel(panel, window, cx);
12451            workspace.toggle_dock(DockPosition::Right, window, cx);
12452        });
12453
12454        let (panel, resized_width, ratio_basis_width) =
12455            workspace.update_in(cx, |workspace, window, cx| {
12456                let item = cx.new(|cx| {
12457                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12458                });
12459                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12460
12461                let dock = workspace.right_dock().read(cx);
12462                let workspace_width = workspace.bounds.size.width;
12463                let initial_width = workspace
12464                    .dock_size(&dock, window, cx)
12465                    .expect("flexible dock should have an initial width");
12466
12467                assert_eq!(initial_width, workspace_width / 2.);
12468
12469                workspace.resize_right_dock(px(300.), window, cx);
12470
12471                let dock = workspace.right_dock().read(cx);
12472                let resized_width = workspace
12473                    .dock_size(&dock, window, cx)
12474                    .expect("flexible dock should keep its resized width");
12475
12476                assert_eq!(resized_width, px(300.));
12477
12478                let panel = workspace
12479                    .right_dock()
12480                    .read(cx)
12481                    .visible_panel()
12482                    .expect("flexible dock should have a visible panel")
12483                    .panel_id();
12484
12485                (panel, resized_width, workspace_width)
12486            });
12487
12488        workspace.update_in(cx, |workspace, window, cx| {
12489            workspace.toggle_dock(DockPosition::Right, window, cx);
12490            workspace.toggle_dock(DockPosition::Right, window, cx);
12491
12492            let dock = workspace.right_dock().read(cx);
12493            let reopened_width = workspace
12494                .dock_size(&dock, window, cx)
12495                .expect("flexible dock should restore when reopened");
12496
12497            assert_eq!(reopened_width, resized_width);
12498
12499            let right_dock = workspace.right_dock().read(cx);
12500            let flexible_panel = right_dock
12501                .visible_panel()
12502                .expect("flexible dock should still have a visible panel");
12503            assert_eq!(flexible_panel.panel_id(), panel);
12504            assert_eq!(
12505                right_dock
12506                    .stored_panel_size_state(flexible_panel.as_ref())
12507                    .and_then(|size_state| size_state.flex),
12508                Some(
12509                    resized_width.to_f64() as f32
12510                        / (workspace.bounds.size.width - resized_width).to_f64() as f32
12511                )
12512            );
12513        });
12514
12515        workspace.update_in(cx, |workspace, window, cx| {
12516            workspace.split_pane(
12517                workspace.active_pane().clone(),
12518                SplitDirection::Right,
12519                window,
12520                cx,
12521            );
12522
12523            let dock = workspace.right_dock().read(cx);
12524            let split_width = workspace
12525                .dock_size(&dock, window, cx)
12526                .expect("flexible dock should keep its user-resized proportion");
12527
12528            assert_eq!(split_width, px(300.));
12529
12530            workspace.bounds.size.width = px(1600.);
12531
12532            let dock = workspace.right_dock().read(cx);
12533            let resized_window_width = workspace
12534                .dock_size(&dock, window, cx)
12535                .expect("flexible dock should preserve proportional size on window resize");
12536
12537            assert_eq!(
12538                resized_window_width,
12539                workspace.bounds.size.width
12540                    * (resized_width.to_f64() as f32 / ratio_basis_width.to_f64() as f32)
12541            );
12542        });
12543    }
12544
12545    #[gpui::test]
12546    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12547        init_test(cx);
12548        let fs = FakeFs::new(cx.executor());
12549
12550        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12551        {
12552            let project = Project::test(fs.clone(), [], cx).await;
12553            let (multi_workspace, cx) =
12554                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12555            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12556
12557            workspace.update(cx, |workspace, _cx| {
12558                workspace.set_random_database_id();
12559                workspace.bounds.size.width = px(800.);
12560            });
12561
12562            let panel = workspace.update_in(cx, |workspace, window, cx| {
12563                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12564                workspace.add_panel(panel.clone(), window, cx);
12565                workspace.toggle_dock(DockPosition::Left, window, cx);
12566                panel
12567            });
12568
12569            workspace.update_in(cx, |workspace, window, cx| {
12570                workspace.resize_left_dock(px(350.), window, cx);
12571            });
12572
12573            cx.run_until_parked();
12574
12575            let persisted = workspace.read_with(cx, |workspace, cx| {
12576                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12577            });
12578            assert_eq!(
12579                persisted.and_then(|s| s.size),
12580                Some(px(350.)),
12581                "fixed-width panel size should be persisted to KVP"
12582            );
12583
12584            // Remove the panel and re-add a fresh instance with the same key.
12585            // The new instance should have its size state restored from KVP.
12586            workspace.update_in(cx, |workspace, window, cx| {
12587                workspace.remove_panel(&panel, window, cx);
12588            });
12589
12590            workspace.update_in(cx, |workspace, window, cx| {
12591                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12592                workspace.add_panel(new_panel, window, cx);
12593
12594                let left_dock = workspace.left_dock().read(cx);
12595                let size_state = left_dock
12596                    .panel::<TestPanel>()
12597                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12598                assert_eq!(
12599                    size_state.and_then(|s| s.size),
12600                    Some(px(350.)),
12601                    "re-added fixed-width panel should restore persisted size from KVP"
12602                );
12603            });
12604        }
12605
12606        // Flexible panel: both pixel size and ratio are persisted and restored.
12607        {
12608            let project = Project::test(fs.clone(), [], cx).await;
12609            let (multi_workspace, cx) =
12610                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12611            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12612
12613            workspace.update(cx, |workspace, _cx| {
12614                workspace.set_random_database_id();
12615                workspace.bounds.size.width = px(800.);
12616            });
12617
12618            let panel = workspace.update_in(cx, |workspace, window, cx| {
12619                let item = cx.new(|cx| {
12620                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12621                });
12622                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12623
12624                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12625                workspace.add_panel(panel.clone(), window, cx);
12626                workspace.toggle_dock(DockPosition::Right, window, cx);
12627                panel
12628            });
12629
12630            workspace.update_in(cx, |workspace, window, cx| {
12631                workspace.resize_right_dock(px(300.), window, cx);
12632            });
12633
12634            cx.run_until_parked();
12635
12636            let persisted = workspace
12637                .read_with(cx, |workspace, cx| {
12638                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12639                })
12640                .expect("flexible panel state should be persisted to KVP");
12641            assert_eq!(
12642                persisted.size, None,
12643                "flexible panel should not persist a redundant pixel size"
12644            );
12645            let original_ratio = persisted.flex.expect("panel's flex should be persisted");
12646
12647            // Remove the panel and re-add: both size and ratio should be restored.
12648            workspace.update_in(cx, |workspace, window, cx| {
12649                workspace.remove_panel(&panel, window, cx);
12650            });
12651
12652            workspace.update_in(cx, |workspace, window, cx| {
12653                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12654                workspace.add_panel(new_panel, window, cx);
12655
12656                let right_dock = workspace.right_dock().read(cx);
12657                let size_state = right_dock
12658                    .panel::<TestPanel>()
12659                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12660                    .expect("re-added flexible panel should have restored size state from KVP");
12661                assert_eq!(
12662                    size_state.size, None,
12663                    "re-added flexible panel should not have a persisted pixel size"
12664                );
12665                assert_eq!(
12666                    size_state.flex,
12667                    Some(original_ratio),
12668                    "re-added flexible panel should restore persisted flex"
12669                );
12670            });
12671        }
12672    }
12673
12674    #[gpui::test]
12675    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12676        init_test(cx);
12677        let fs = FakeFs::new(cx.executor());
12678
12679        let project = Project::test(fs, [], cx).await;
12680        let (multi_workspace, cx) =
12681            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12682        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12683
12684        workspace.update(cx, |workspace, _cx| {
12685            workspace.bounds.size.width = px(900.);
12686        });
12687
12688        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12689        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12690        // and the center pane each take half the workspace width.
12691        workspace.update_in(cx, |workspace, window, cx| {
12692            let item = cx.new(|cx| {
12693                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12694            });
12695            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12696
12697            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12698            workspace.add_panel(panel, window, cx);
12699            workspace.toggle_dock(DockPosition::Left, window, cx);
12700
12701            let left_dock = workspace.left_dock().read(cx);
12702            let left_width = workspace
12703                .dock_size(&left_dock, window, cx)
12704                .expect("left dock should have an active panel");
12705
12706            assert_eq!(
12707                left_width,
12708                workspace.bounds.size.width / 2.,
12709                "flexible left panel should split evenly with the center pane"
12710            );
12711        });
12712
12713        // Step 2: Split the center pane vertically (top/bottom). Vertical splits do not
12714        // change horizontal width fractions, so the flexible panel stays at the same
12715        // width as each half of the split.
12716        workspace.update_in(cx, |workspace, window, cx| {
12717            workspace.split_pane(
12718                workspace.active_pane().clone(),
12719                SplitDirection::Down,
12720                window,
12721                cx,
12722            );
12723
12724            let left_dock = workspace.left_dock().read(cx);
12725            let left_width = workspace
12726                .dock_size(&left_dock, window, cx)
12727                .expect("left dock should still have an active panel after vertical split");
12728
12729            assert_eq!(
12730                left_width,
12731                workspace.bounds.size.width / 2.,
12732                "flexible left panel width should match each vertically-split pane"
12733            );
12734        });
12735
12736        // Step 3: Open a fixed-width panel in the right dock. The right dock's default
12737        // size reduces the available width, so the flexible left panel and the center
12738        // panes all shrink proportionally to accommodate it.
12739        workspace.update_in(cx, |workspace, window, cx| {
12740            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
12741            workspace.add_panel(panel, window, cx);
12742            workspace.toggle_dock(DockPosition::Right, window, cx);
12743
12744            let right_dock = workspace.right_dock().read(cx);
12745            let right_width = workspace
12746                .dock_size(&right_dock, window, cx)
12747                .expect("right dock should have an active panel");
12748
12749            let left_dock = workspace.left_dock().read(cx);
12750            let left_width = workspace
12751                .dock_size(&left_dock, window, cx)
12752                .expect("left dock should still have an active panel");
12753
12754            let available_width = workspace.bounds.size.width - right_width;
12755            assert_eq!(
12756                left_width,
12757                available_width / 2.,
12758                "flexible left panel should shrink proportionally as the right dock takes space"
12759            );
12760        });
12761
12762        // Step 4: Toggle the right dock's panel to flexible. Now both docks use
12763        // flex sizing and the workspace width is divided among left-flex, center
12764        // (implicit flex 1.0), and right-flex.
12765        workspace.update_in(cx, |workspace, window, cx| {
12766            let right_dock = workspace.right_dock().clone();
12767            let right_panel = right_dock
12768                .read(cx)
12769                .visible_panel()
12770                .expect("right dock should have a visible panel")
12771                .clone();
12772            workspace.toggle_dock_panel_flexible_size(
12773                &right_dock,
12774                right_panel.as_ref(),
12775                window,
12776                cx,
12777            );
12778
12779            let right_dock = right_dock.read(cx);
12780            let right_panel = right_dock
12781                .visible_panel()
12782                .expect("right dock should still have a visible panel");
12783            assert!(
12784                right_panel.has_flexible_size(window, cx),
12785                "right panel should now be flexible"
12786            );
12787
12788            let right_size_state = right_dock
12789                .stored_panel_size_state(right_panel.as_ref())
12790                .expect("right panel should have a stored size state after toggling");
12791            let right_flex = right_size_state
12792                .flex
12793                .expect("right panel should have a flex value after toggling");
12794
12795            let left_dock = workspace.left_dock().read(cx);
12796            let left_width = workspace
12797                .dock_size(&left_dock, window, cx)
12798                .expect("left dock should still have an active panel");
12799            let right_width = workspace
12800                .dock_size(&right_dock, window, cx)
12801                .expect("right dock should still have an active panel");
12802
12803            let left_flex = workspace
12804                .default_dock_flex(DockPosition::Left)
12805                .expect("left dock should have a default flex");
12806
12807            let total_flex = left_flex + 1.0 + right_flex;
12808            let expected_left = left_flex / total_flex * workspace.bounds.size.width;
12809            let expected_right = right_flex / total_flex * workspace.bounds.size.width;
12810            assert_eq!(
12811                left_width, expected_left,
12812                "flexible left panel should share workspace width via flex ratios"
12813            );
12814            assert_eq!(
12815                right_width, expected_right,
12816                "flexible right panel should share workspace width via flex ratios"
12817            );
12818        });
12819    }
12820
12821    struct TestModal(FocusHandle);
12822
12823    impl TestModal {
12824        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
12825            Self(cx.focus_handle())
12826        }
12827    }
12828
12829    impl EventEmitter<DismissEvent> for TestModal {}
12830
12831    impl Focusable for TestModal {
12832        fn focus_handle(&self, _cx: &App) -> FocusHandle {
12833            self.0.clone()
12834        }
12835    }
12836
12837    impl ModalView for TestModal {}
12838
12839    impl Render for TestModal {
12840        fn render(
12841            &mut self,
12842            _window: &mut Window,
12843            _cx: &mut Context<TestModal>,
12844        ) -> impl IntoElement {
12845            div().track_focus(&self.0)
12846        }
12847    }
12848
12849    #[gpui::test]
12850    async fn test_panels(cx: &mut gpui::TestAppContext) {
12851        init_test(cx);
12852        let fs = FakeFs::new(cx.executor());
12853
12854        let project = Project::test(fs, [], cx).await;
12855        let (multi_workspace, cx) =
12856            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12857        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12858
12859        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
12860            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12861            workspace.add_panel(panel_1.clone(), window, cx);
12862            workspace.toggle_dock(DockPosition::Left, window, cx);
12863            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12864            workspace.add_panel(panel_2.clone(), window, cx);
12865            workspace.toggle_dock(DockPosition::Right, window, cx);
12866
12867            let left_dock = workspace.left_dock();
12868            assert_eq!(
12869                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12870                panel_1.panel_id()
12871            );
12872            assert_eq!(
12873                workspace.dock_size(&left_dock.read(cx), window, cx),
12874                Some(px(300.))
12875            );
12876
12877            workspace.resize_left_dock(px(1337.), window, cx);
12878            assert_eq!(
12879                workspace
12880                    .right_dock()
12881                    .read(cx)
12882                    .visible_panel()
12883                    .unwrap()
12884                    .panel_id(),
12885                panel_2.panel_id(),
12886            );
12887
12888            (panel_1, panel_2)
12889        });
12890
12891        // Move panel_1 to the right
12892        panel_1.update_in(cx, |panel_1, window, cx| {
12893            panel_1.set_position(DockPosition::Right, window, cx)
12894        });
12895
12896        workspace.update_in(cx, |workspace, window, cx| {
12897            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
12898            // Since it was the only panel on the left, the left dock should now be closed.
12899            assert!(!workspace.left_dock().read(cx).is_open());
12900            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
12901            let right_dock = workspace.right_dock();
12902            assert_eq!(
12903                right_dock.read(cx).visible_panel().unwrap().panel_id(),
12904                panel_1.panel_id()
12905            );
12906            assert_eq!(
12907                right_dock
12908                    .read(cx)
12909                    .active_panel_size()
12910                    .unwrap()
12911                    .size
12912                    .unwrap(),
12913                px(1337.)
12914            );
12915
12916            // Now we move panel_2 to the left
12917            panel_2.set_position(DockPosition::Left, window, cx);
12918        });
12919
12920        workspace.update(cx, |workspace, cx| {
12921            // Since panel_2 was not visible on the right, we don't open the left dock.
12922            assert!(!workspace.left_dock().read(cx).is_open());
12923            // And the right dock is unaffected in its displaying of panel_1
12924            assert!(workspace.right_dock().read(cx).is_open());
12925            assert_eq!(
12926                workspace
12927                    .right_dock()
12928                    .read(cx)
12929                    .visible_panel()
12930                    .unwrap()
12931                    .panel_id(),
12932                panel_1.panel_id(),
12933            );
12934        });
12935
12936        // Move panel_1 back to the left
12937        panel_1.update_in(cx, |panel_1, window, cx| {
12938            panel_1.set_position(DockPosition::Left, window, cx)
12939        });
12940
12941        workspace.update_in(cx, |workspace, window, cx| {
12942            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
12943            let left_dock = workspace.left_dock();
12944            assert!(left_dock.read(cx).is_open());
12945            assert_eq!(
12946                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12947                panel_1.panel_id()
12948            );
12949            assert_eq!(
12950                workspace.dock_size(&left_dock.read(cx), window, cx),
12951                Some(px(1337.))
12952            );
12953            // And the right dock should be closed as it no longer has any panels.
12954            assert!(!workspace.right_dock().read(cx).is_open());
12955
12956            // Now we move panel_1 to the bottom
12957            panel_1.set_position(DockPosition::Bottom, window, cx);
12958        });
12959
12960        workspace.update_in(cx, |workspace, window, cx| {
12961            // Since panel_1 was visible on the left, we close the left dock.
12962            assert!(!workspace.left_dock().read(cx).is_open());
12963            // The bottom dock is sized based on the panel's default size,
12964            // since the panel orientation changed from vertical to horizontal.
12965            let bottom_dock = workspace.bottom_dock();
12966            assert_eq!(
12967                workspace.dock_size(&bottom_dock.read(cx), window, cx),
12968                Some(px(300.))
12969            );
12970            // Close bottom dock and move panel_1 back to the left.
12971            bottom_dock.update(cx, |bottom_dock, cx| {
12972                bottom_dock.set_open(false, window, cx)
12973            });
12974            panel_1.set_position(DockPosition::Left, window, cx);
12975        });
12976
12977        // Emit activated event on panel 1
12978        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
12979
12980        // Now the left dock is open and panel_1 is active and focused.
12981        workspace.update_in(cx, |workspace, window, cx| {
12982            let left_dock = workspace.left_dock();
12983            assert!(left_dock.read(cx).is_open());
12984            assert_eq!(
12985                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12986                panel_1.panel_id(),
12987            );
12988            assert!(panel_1.focus_handle(cx).is_focused(window));
12989        });
12990
12991        // Emit closed event on panel 2, which is not active
12992        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12993
12994        // Wo don't close the left dock, because panel_2 wasn't the active panel
12995        workspace.update(cx, |workspace, cx| {
12996            let left_dock = workspace.left_dock();
12997            assert!(left_dock.read(cx).is_open());
12998            assert_eq!(
12999                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13000                panel_1.panel_id(),
13001            );
13002        });
13003
13004        // Emitting a ZoomIn event shows the panel as zoomed.
13005        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
13006        workspace.read_with(cx, |workspace, _| {
13007            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13008            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
13009        });
13010
13011        // Move panel to another dock while it is zoomed
13012        panel_1.update_in(cx, |panel, window, cx| {
13013            panel.set_position(DockPosition::Right, window, cx)
13014        });
13015        workspace.read_with(cx, |workspace, _| {
13016            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13017
13018            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13019        });
13020
13021        // This is a helper for getting a:
13022        // - valid focus on an element,
13023        // - that isn't a part of the panes and panels system of the Workspace,
13024        // - and doesn't trigger the 'on_focus_lost' API.
13025        let focus_other_view = {
13026            let workspace = workspace.clone();
13027            move |cx: &mut VisualTestContext| {
13028                workspace.update_in(cx, |workspace, window, cx| {
13029                    if workspace.active_modal::<TestModal>(cx).is_some() {
13030                        workspace.toggle_modal(window, cx, TestModal::new);
13031                        workspace.toggle_modal(window, cx, TestModal::new);
13032                    } else {
13033                        workspace.toggle_modal(window, cx, TestModal::new);
13034                    }
13035                })
13036            }
13037        };
13038
13039        // If focus is transferred to another view that's not a panel or another pane, we still show
13040        // the panel as zoomed.
13041        focus_other_view(cx);
13042        workspace.read_with(cx, |workspace, _| {
13043            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13044            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13045        });
13046
13047        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
13048        workspace.update_in(cx, |_workspace, window, cx| {
13049            cx.focus_self(window);
13050        });
13051        workspace.read_with(cx, |workspace, _| {
13052            assert_eq!(workspace.zoomed, None);
13053            assert_eq!(workspace.zoomed_position, None);
13054        });
13055
13056        // If focus is transferred again to another view that's not a panel or a pane, we won't
13057        // show the panel as zoomed because it wasn't zoomed before.
13058        focus_other_view(cx);
13059        workspace.read_with(cx, |workspace, _| {
13060            assert_eq!(workspace.zoomed, None);
13061            assert_eq!(workspace.zoomed_position, None);
13062        });
13063
13064        // When the panel is activated, it is zoomed again.
13065        cx.dispatch_action(ToggleRightDock);
13066        workspace.read_with(cx, |workspace, _| {
13067            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13068            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13069        });
13070
13071        // Emitting a ZoomOut event unzooms the panel.
13072        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
13073        workspace.read_with(cx, |workspace, _| {
13074            assert_eq!(workspace.zoomed, None);
13075            assert_eq!(workspace.zoomed_position, None);
13076        });
13077
13078        // Emit closed event on panel 1, which is active
13079        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13080
13081        // Now the left dock is closed, because panel_1 was the active panel
13082        workspace.update(cx, |workspace, cx| {
13083            let right_dock = workspace.right_dock();
13084            assert!(!right_dock.read(cx).is_open());
13085        });
13086    }
13087
13088    #[gpui::test]
13089    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
13090        init_test(cx);
13091
13092        let fs = FakeFs::new(cx.background_executor.clone());
13093        let project = Project::test(fs, [], cx).await;
13094        let (workspace, cx) =
13095            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13096        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13097
13098        let dirty_regular_buffer = cx.new(|cx| {
13099            TestItem::new(cx)
13100                .with_dirty(true)
13101                .with_label("1.txt")
13102                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13103        });
13104        let dirty_regular_buffer_2 = cx.new(|cx| {
13105            TestItem::new(cx)
13106                .with_dirty(true)
13107                .with_label("2.txt")
13108                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13109        });
13110        let dirty_multi_buffer_with_both = cx.new(|cx| {
13111            TestItem::new(cx)
13112                .with_dirty(true)
13113                .with_buffer_kind(ItemBufferKind::Multibuffer)
13114                .with_label("Fake Project Search")
13115                .with_project_items(&[
13116                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13117                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13118                ])
13119        });
13120        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13121        workspace.update_in(cx, |workspace, window, cx| {
13122            workspace.add_item(
13123                pane.clone(),
13124                Box::new(dirty_regular_buffer.clone()),
13125                None,
13126                false,
13127                false,
13128                window,
13129                cx,
13130            );
13131            workspace.add_item(
13132                pane.clone(),
13133                Box::new(dirty_regular_buffer_2.clone()),
13134                None,
13135                false,
13136                false,
13137                window,
13138                cx,
13139            );
13140            workspace.add_item(
13141                pane.clone(),
13142                Box::new(dirty_multi_buffer_with_both.clone()),
13143                None,
13144                false,
13145                false,
13146                window,
13147                cx,
13148            );
13149        });
13150
13151        pane.update_in(cx, |pane, window, cx| {
13152            pane.activate_item(2, true, true, window, cx);
13153            assert_eq!(
13154                pane.active_item().unwrap().item_id(),
13155                multi_buffer_with_both_files_id,
13156                "Should select the multi buffer in the pane"
13157            );
13158        });
13159        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13160            pane.close_other_items(
13161                &CloseOtherItems {
13162                    save_intent: Some(SaveIntent::Save),
13163                    close_pinned: true,
13164                },
13165                None,
13166                window,
13167                cx,
13168            )
13169        });
13170        cx.background_executor.run_until_parked();
13171        assert!(!cx.has_pending_prompt());
13172        close_all_but_multi_buffer_task
13173            .await
13174            .expect("Closing all buffers but the multi buffer failed");
13175        pane.update(cx, |pane, cx| {
13176            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
13177            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
13178            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
13179            assert_eq!(pane.items_len(), 1);
13180            assert_eq!(
13181                pane.active_item().unwrap().item_id(),
13182                multi_buffer_with_both_files_id,
13183                "Should have only the multi buffer left in the pane"
13184            );
13185            assert!(
13186                dirty_multi_buffer_with_both.read(cx).is_dirty,
13187                "The multi buffer containing the unsaved buffer should still be dirty"
13188            );
13189        });
13190
13191        dirty_regular_buffer.update(cx, |buffer, cx| {
13192            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
13193        });
13194
13195        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13196            pane.close_active_item(
13197                &CloseActiveItem {
13198                    save_intent: Some(SaveIntent::Close),
13199                    close_pinned: false,
13200                },
13201                window,
13202                cx,
13203            )
13204        });
13205        cx.background_executor.run_until_parked();
13206        assert!(
13207            cx.has_pending_prompt(),
13208            "Dirty multi buffer should prompt a save dialog"
13209        );
13210        cx.simulate_prompt_answer("Save");
13211        cx.background_executor.run_until_parked();
13212        close_multi_buffer_task
13213            .await
13214            .expect("Closing the multi buffer failed");
13215        pane.update(cx, |pane, cx| {
13216            assert_eq!(
13217                dirty_multi_buffer_with_both.read(cx).save_count,
13218                1,
13219                "Multi buffer item should get be saved"
13220            );
13221            // Test impl does not save inner items, so we do not assert them
13222            assert_eq!(
13223                pane.items_len(),
13224                0,
13225                "No more items should be left in the pane"
13226            );
13227            assert!(pane.active_item().is_none());
13228        });
13229    }
13230
13231    #[gpui::test]
13232    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
13233        cx: &mut TestAppContext,
13234    ) {
13235        init_test(cx);
13236
13237        let fs = FakeFs::new(cx.background_executor.clone());
13238        let project = Project::test(fs, [], cx).await;
13239        let (workspace, cx) =
13240            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13241        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13242
13243        let dirty_regular_buffer = cx.new(|cx| {
13244            TestItem::new(cx)
13245                .with_dirty(true)
13246                .with_label("1.txt")
13247                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13248        });
13249        let dirty_regular_buffer_2 = cx.new(|cx| {
13250            TestItem::new(cx)
13251                .with_dirty(true)
13252                .with_label("2.txt")
13253                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13254        });
13255        let clear_regular_buffer = cx.new(|cx| {
13256            TestItem::new(cx)
13257                .with_label("3.txt")
13258                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13259        });
13260
13261        let dirty_multi_buffer_with_both = cx.new(|cx| {
13262            TestItem::new(cx)
13263                .with_dirty(true)
13264                .with_buffer_kind(ItemBufferKind::Multibuffer)
13265                .with_label("Fake Project Search")
13266                .with_project_items(&[
13267                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13268                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13269                    clear_regular_buffer.read(cx).project_items[0].clone(),
13270                ])
13271        });
13272        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13273        workspace.update_in(cx, |workspace, window, cx| {
13274            workspace.add_item(
13275                pane.clone(),
13276                Box::new(dirty_regular_buffer.clone()),
13277                None,
13278                false,
13279                false,
13280                window,
13281                cx,
13282            );
13283            workspace.add_item(
13284                pane.clone(),
13285                Box::new(dirty_multi_buffer_with_both.clone()),
13286                None,
13287                false,
13288                false,
13289                window,
13290                cx,
13291            );
13292        });
13293
13294        pane.update_in(cx, |pane, window, cx| {
13295            pane.activate_item(1, true, true, window, cx);
13296            assert_eq!(
13297                pane.active_item().unwrap().item_id(),
13298                multi_buffer_with_both_files_id,
13299                "Should select the multi buffer in the pane"
13300            );
13301        });
13302        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13303            pane.close_active_item(
13304                &CloseActiveItem {
13305                    save_intent: None,
13306                    close_pinned: false,
13307                },
13308                window,
13309                cx,
13310            )
13311        });
13312        cx.background_executor.run_until_parked();
13313        assert!(
13314            cx.has_pending_prompt(),
13315            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13316        );
13317    }
13318
13319    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13320    /// closed when they are deleted from disk.
13321    #[gpui::test]
13322    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13323        init_test(cx);
13324
13325        // Enable the close_on_disk_deletion setting
13326        cx.update_global(|store: &mut SettingsStore, cx| {
13327            store.update_user_settings(cx, |settings| {
13328                settings.workspace.close_on_file_delete = Some(true);
13329            });
13330        });
13331
13332        let fs = FakeFs::new(cx.background_executor.clone());
13333        let project = Project::test(fs, [], cx).await;
13334        let (workspace, cx) =
13335            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13336        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13337
13338        // Create a test item that simulates a file
13339        let item = cx.new(|cx| {
13340            TestItem::new(cx)
13341                .with_label("test.txt")
13342                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13343        });
13344
13345        // Add item to workspace
13346        workspace.update_in(cx, |workspace, window, cx| {
13347            workspace.add_item(
13348                pane.clone(),
13349                Box::new(item.clone()),
13350                None,
13351                false,
13352                false,
13353                window,
13354                cx,
13355            );
13356        });
13357
13358        // Verify the item is in the pane
13359        pane.read_with(cx, |pane, _| {
13360            assert_eq!(pane.items().count(), 1);
13361        });
13362
13363        // Simulate file deletion by setting the item's deleted state
13364        item.update(cx, |item, _| {
13365            item.set_has_deleted_file(true);
13366        });
13367
13368        // Emit UpdateTab event to trigger the close behavior
13369        cx.run_until_parked();
13370        item.update(cx, |_, cx| {
13371            cx.emit(ItemEvent::UpdateTab);
13372        });
13373
13374        // Allow the close operation to complete
13375        cx.run_until_parked();
13376
13377        // Verify the item was automatically closed
13378        pane.read_with(cx, |pane, _| {
13379            assert_eq!(
13380                pane.items().count(),
13381                0,
13382                "Item should be automatically closed when file is deleted"
13383            );
13384        });
13385    }
13386
13387    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13388    /// open with a strikethrough when they are deleted from disk.
13389    #[gpui::test]
13390    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13391        init_test(cx);
13392
13393        // Ensure close_on_disk_deletion is disabled (default)
13394        cx.update_global(|store: &mut SettingsStore, cx| {
13395            store.update_user_settings(cx, |settings| {
13396                settings.workspace.close_on_file_delete = Some(false);
13397            });
13398        });
13399
13400        let fs = FakeFs::new(cx.background_executor.clone());
13401        let project = Project::test(fs, [], cx).await;
13402        let (workspace, cx) =
13403            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13404        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13405
13406        // Create a test item that simulates a file
13407        let item = cx.new(|cx| {
13408            TestItem::new(cx)
13409                .with_label("test.txt")
13410                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13411        });
13412
13413        // Add item to workspace
13414        workspace.update_in(cx, |workspace, window, cx| {
13415            workspace.add_item(
13416                pane.clone(),
13417                Box::new(item.clone()),
13418                None,
13419                false,
13420                false,
13421                window,
13422                cx,
13423            );
13424        });
13425
13426        // Verify the item is in the pane
13427        pane.read_with(cx, |pane, _| {
13428            assert_eq!(pane.items().count(), 1);
13429        });
13430
13431        // Simulate file deletion
13432        item.update(cx, |item, _| {
13433            item.set_has_deleted_file(true);
13434        });
13435
13436        // Emit UpdateTab event
13437        cx.run_until_parked();
13438        item.update(cx, |_, cx| {
13439            cx.emit(ItemEvent::UpdateTab);
13440        });
13441
13442        // Allow any potential close operation to complete
13443        cx.run_until_parked();
13444
13445        // Verify the item remains open (with strikethrough)
13446        pane.read_with(cx, |pane, _| {
13447            assert_eq!(
13448                pane.items().count(),
13449                1,
13450                "Item should remain open when close_on_disk_deletion is disabled"
13451            );
13452        });
13453
13454        // Verify the item shows as deleted
13455        item.read_with(cx, |item, _| {
13456            assert!(
13457                item.has_deleted_file,
13458                "Item should be marked as having deleted file"
13459            );
13460        });
13461    }
13462
13463    /// Tests that dirty files are not automatically closed when deleted from disk,
13464    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13465    /// unsaved changes without being prompted.
13466    #[gpui::test]
13467    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13468        init_test(cx);
13469
13470        // Enable the close_on_file_delete setting
13471        cx.update_global(|store: &mut SettingsStore, cx| {
13472            store.update_user_settings(cx, |settings| {
13473                settings.workspace.close_on_file_delete = Some(true);
13474            });
13475        });
13476
13477        let fs = FakeFs::new(cx.background_executor.clone());
13478        let project = Project::test(fs, [], cx).await;
13479        let (workspace, cx) =
13480            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13481        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13482
13483        // Create a dirty test item
13484        let item = cx.new(|cx| {
13485            TestItem::new(cx)
13486                .with_dirty(true)
13487                .with_label("test.txt")
13488                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13489        });
13490
13491        // Add item to workspace
13492        workspace.update_in(cx, |workspace, window, cx| {
13493            workspace.add_item(
13494                pane.clone(),
13495                Box::new(item.clone()),
13496                None,
13497                false,
13498                false,
13499                window,
13500                cx,
13501            );
13502        });
13503
13504        // Simulate file deletion
13505        item.update(cx, |item, _| {
13506            item.set_has_deleted_file(true);
13507        });
13508
13509        // Emit UpdateTab event to trigger the close behavior
13510        cx.run_until_parked();
13511        item.update(cx, |_, cx| {
13512            cx.emit(ItemEvent::UpdateTab);
13513        });
13514
13515        // Allow any potential close operation to complete
13516        cx.run_until_parked();
13517
13518        // Verify the item remains open (dirty files are not auto-closed)
13519        pane.read_with(cx, |pane, _| {
13520            assert_eq!(
13521                pane.items().count(),
13522                1,
13523                "Dirty items should not be automatically closed even when file is deleted"
13524            );
13525        });
13526
13527        // Verify the item is marked as deleted and still dirty
13528        item.read_with(cx, |item, _| {
13529            assert!(
13530                item.has_deleted_file,
13531                "Item should be marked as having deleted file"
13532            );
13533            assert!(item.is_dirty, "Item should still be dirty");
13534        });
13535    }
13536
13537    /// Tests that navigation history is cleaned up when files are auto-closed
13538    /// due to deletion from disk.
13539    #[gpui::test]
13540    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13541        init_test(cx);
13542
13543        // Enable the close_on_file_delete setting
13544        cx.update_global(|store: &mut SettingsStore, cx| {
13545            store.update_user_settings(cx, |settings| {
13546                settings.workspace.close_on_file_delete = Some(true);
13547            });
13548        });
13549
13550        let fs = FakeFs::new(cx.background_executor.clone());
13551        let project = Project::test(fs, [], cx).await;
13552        let (workspace, cx) =
13553            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13554        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13555
13556        // Create test items
13557        let item1 = cx.new(|cx| {
13558            TestItem::new(cx)
13559                .with_label("test1.txt")
13560                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13561        });
13562        let item1_id = item1.item_id();
13563
13564        let item2 = cx.new(|cx| {
13565            TestItem::new(cx)
13566                .with_label("test2.txt")
13567                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13568        });
13569
13570        // Add items to workspace
13571        workspace.update_in(cx, |workspace, window, cx| {
13572            workspace.add_item(
13573                pane.clone(),
13574                Box::new(item1.clone()),
13575                None,
13576                false,
13577                false,
13578                window,
13579                cx,
13580            );
13581            workspace.add_item(
13582                pane.clone(),
13583                Box::new(item2.clone()),
13584                None,
13585                false,
13586                false,
13587                window,
13588                cx,
13589            );
13590        });
13591
13592        // Activate item1 to ensure it gets navigation entries
13593        pane.update_in(cx, |pane, window, cx| {
13594            pane.activate_item(0, true, true, window, cx);
13595        });
13596
13597        // Switch to item2 and back to create navigation history
13598        pane.update_in(cx, |pane, window, cx| {
13599            pane.activate_item(1, true, true, window, cx);
13600        });
13601        cx.run_until_parked();
13602
13603        pane.update_in(cx, |pane, window, cx| {
13604            pane.activate_item(0, true, true, window, cx);
13605        });
13606        cx.run_until_parked();
13607
13608        // Simulate file deletion for item1
13609        item1.update(cx, |item, _| {
13610            item.set_has_deleted_file(true);
13611        });
13612
13613        // Emit UpdateTab event to trigger the close behavior
13614        item1.update(cx, |_, cx| {
13615            cx.emit(ItemEvent::UpdateTab);
13616        });
13617        cx.run_until_parked();
13618
13619        // Verify item1 was closed
13620        pane.read_with(cx, |pane, _| {
13621            assert_eq!(
13622                pane.items().count(),
13623                1,
13624                "Should have 1 item remaining after auto-close"
13625            );
13626        });
13627
13628        // Check navigation history after close
13629        let has_item = pane.read_with(cx, |pane, cx| {
13630            let mut has_item = false;
13631            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13632                if entry.item.id() == item1_id {
13633                    has_item = true;
13634                }
13635            });
13636            has_item
13637        });
13638
13639        assert!(
13640            !has_item,
13641            "Navigation history should not contain closed item entries"
13642        );
13643    }
13644
13645    #[gpui::test]
13646    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13647        cx: &mut TestAppContext,
13648    ) {
13649        init_test(cx);
13650
13651        let fs = FakeFs::new(cx.background_executor.clone());
13652        let project = Project::test(fs, [], cx).await;
13653        let (workspace, cx) =
13654            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13655        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13656
13657        let dirty_regular_buffer = cx.new(|cx| {
13658            TestItem::new(cx)
13659                .with_dirty(true)
13660                .with_label("1.txt")
13661                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13662        });
13663        let dirty_regular_buffer_2 = cx.new(|cx| {
13664            TestItem::new(cx)
13665                .with_dirty(true)
13666                .with_label("2.txt")
13667                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13668        });
13669        let clear_regular_buffer = cx.new(|cx| {
13670            TestItem::new(cx)
13671                .with_label("3.txt")
13672                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13673        });
13674
13675        let dirty_multi_buffer = cx.new(|cx| {
13676            TestItem::new(cx)
13677                .with_dirty(true)
13678                .with_buffer_kind(ItemBufferKind::Multibuffer)
13679                .with_label("Fake Project Search")
13680                .with_project_items(&[
13681                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13682                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13683                    clear_regular_buffer.read(cx).project_items[0].clone(),
13684                ])
13685        });
13686        workspace.update_in(cx, |workspace, window, cx| {
13687            workspace.add_item(
13688                pane.clone(),
13689                Box::new(dirty_regular_buffer.clone()),
13690                None,
13691                false,
13692                false,
13693                window,
13694                cx,
13695            );
13696            workspace.add_item(
13697                pane.clone(),
13698                Box::new(dirty_regular_buffer_2.clone()),
13699                None,
13700                false,
13701                false,
13702                window,
13703                cx,
13704            );
13705            workspace.add_item(
13706                pane.clone(),
13707                Box::new(dirty_multi_buffer.clone()),
13708                None,
13709                false,
13710                false,
13711                window,
13712                cx,
13713            );
13714        });
13715
13716        pane.update_in(cx, |pane, window, cx| {
13717            pane.activate_item(2, true, true, window, cx);
13718            assert_eq!(
13719                pane.active_item().unwrap().item_id(),
13720                dirty_multi_buffer.item_id(),
13721                "Should select the multi buffer in the pane"
13722            );
13723        });
13724        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13725            pane.close_active_item(
13726                &CloseActiveItem {
13727                    save_intent: None,
13728                    close_pinned: false,
13729                },
13730                window,
13731                cx,
13732            )
13733        });
13734        cx.background_executor.run_until_parked();
13735        assert!(
13736            !cx.has_pending_prompt(),
13737            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
13738        );
13739        close_multi_buffer_task
13740            .await
13741            .expect("Closing multi buffer failed");
13742        pane.update(cx, |pane, cx| {
13743            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
13744            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
13745            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
13746            assert_eq!(
13747                pane.items()
13748                    .map(|item| item.item_id())
13749                    .sorted()
13750                    .collect::<Vec<_>>(),
13751                vec![
13752                    dirty_regular_buffer.item_id(),
13753                    dirty_regular_buffer_2.item_id(),
13754                ],
13755                "Should have no multi buffer left in the pane"
13756            );
13757            assert!(dirty_regular_buffer.read(cx).is_dirty);
13758            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
13759        });
13760    }
13761
13762    #[gpui::test]
13763    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
13764        init_test(cx);
13765        let fs = FakeFs::new(cx.executor());
13766        let project = Project::test(fs, [], cx).await;
13767        let (multi_workspace, cx) =
13768            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13769        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13770
13771        // Add a new panel to the right dock, opening the dock and setting the
13772        // focus to the new panel.
13773        let panel = workspace.update_in(cx, |workspace, window, cx| {
13774            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13775            workspace.add_panel(panel.clone(), window, cx);
13776
13777            workspace
13778                .right_dock()
13779                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13780
13781            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13782
13783            panel
13784        });
13785
13786        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13787        // panel to the next valid position which, in this case, is the left
13788        // dock.
13789        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13790        workspace.update(cx, |workspace, cx| {
13791            assert!(workspace.left_dock().read(cx).is_open());
13792            assert_eq!(panel.read(cx).position, DockPosition::Left);
13793        });
13794
13795        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13796        // panel to the next valid position which, in this case, is the bottom
13797        // dock.
13798        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13799        workspace.update(cx, |workspace, cx| {
13800            assert!(workspace.bottom_dock().read(cx).is_open());
13801            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
13802        });
13803
13804        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
13805        // around moving the panel to its initial position, the right dock.
13806        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13807        workspace.update(cx, |workspace, cx| {
13808            assert!(workspace.right_dock().read(cx).is_open());
13809            assert_eq!(panel.read(cx).position, DockPosition::Right);
13810        });
13811
13812        // Remove focus from the panel, ensuring that, if the panel is not
13813        // focused, the `MoveFocusedPanelToNextPosition` action does not update
13814        // the panel's position, so the panel is still in the right dock.
13815        workspace.update_in(cx, |workspace, window, cx| {
13816            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13817        });
13818
13819        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13820        workspace.update(cx, |workspace, cx| {
13821            assert!(workspace.right_dock().read(cx).is_open());
13822            assert_eq!(panel.read(cx).position, DockPosition::Right);
13823        });
13824    }
13825
13826    #[gpui::test]
13827    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
13828        init_test(cx);
13829
13830        let fs = FakeFs::new(cx.executor());
13831        let project = Project::test(fs, [], cx).await;
13832        let (workspace, cx) =
13833            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13834
13835        let item_1 = cx.new(|cx| {
13836            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13837        });
13838        workspace.update_in(cx, |workspace, window, cx| {
13839            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13840            workspace.move_item_to_pane_in_direction(
13841                &MoveItemToPaneInDirection {
13842                    direction: SplitDirection::Right,
13843                    focus: true,
13844                    clone: false,
13845                },
13846                window,
13847                cx,
13848            );
13849            workspace.move_item_to_pane_at_index(
13850                &MoveItemToPane {
13851                    destination: 3,
13852                    focus: true,
13853                    clone: false,
13854                },
13855                window,
13856                cx,
13857            );
13858
13859            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
13860            assert_eq!(
13861                pane_items_paths(&workspace.active_pane, cx),
13862                vec!["first.txt".to_string()],
13863                "Single item was not moved anywhere"
13864            );
13865        });
13866
13867        let item_2 = cx.new(|cx| {
13868            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
13869        });
13870        workspace.update_in(cx, |workspace, window, cx| {
13871            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
13872            assert_eq!(
13873                pane_items_paths(&workspace.panes[0], cx),
13874                vec!["first.txt".to_string(), "second.txt".to_string()],
13875            );
13876            workspace.move_item_to_pane_in_direction(
13877                &MoveItemToPaneInDirection {
13878                    direction: SplitDirection::Right,
13879                    focus: true,
13880                    clone: false,
13881                },
13882                window,
13883                cx,
13884            );
13885
13886            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
13887            assert_eq!(
13888                pane_items_paths(&workspace.panes[0], cx),
13889                vec!["first.txt".to_string()],
13890                "After moving, one item should be left in the original pane"
13891            );
13892            assert_eq!(
13893                pane_items_paths(&workspace.panes[1], cx),
13894                vec!["second.txt".to_string()],
13895                "New item should have been moved to the new pane"
13896            );
13897        });
13898
13899        let item_3 = cx.new(|cx| {
13900            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
13901        });
13902        workspace.update_in(cx, |workspace, window, cx| {
13903            let original_pane = workspace.panes[0].clone();
13904            workspace.set_active_pane(&original_pane, window, cx);
13905            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
13906            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
13907            assert_eq!(
13908                pane_items_paths(&workspace.active_pane, cx),
13909                vec!["first.txt".to_string(), "third.txt".to_string()],
13910                "New pane should be ready to move one item out"
13911            );
13912
13913            workspace.move_item_to_pane_at_index(
13914                &MoveItemToPane {
13915                    destination: 3,
13916                    focus: true,
13917                    clone: false,
13918                },
13919                window,
13920                cx,
13921            );
13922            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
13923            assert_eq!(
13924                pane_items_paths(&workspace.active_pane, cx),
13925                vec!["first.txt".to_string()],
13926                "After moving, one item should be left in the original pane"
13927            );
13928            assert_eq!(
13929                pane_items_paths(&workspace.panes[1], cx),
13930                vec!["second.txt".to_string()],
13931                "Previously created pane should be unchanged"
13932            );
13933            assert_eq!(
13934                pane_items_paths(&workspace.panes[2], cx),
13935                vec!["third.txt".to_string()],
13936                "New item should have been moved to the new pane"
13937            );
13938        });
13939    }
13940
13941    #[gpui::test]
13942    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
13943        init_test(cx);
13944
13945        let fs = FakeFs::new(cx.executor());
13946        let project = Project::test(fs, [], cx).await;
13947        let (workspace, cx) =
13948            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13949
13950        let item_1 = cx.new(|cx| {
13951            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13952        });
13953        workspace.update_in(cx, |workspace, window, cx| {
13954            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13955            workspace.move_item_to_pane_in_direction(
13956                &MoveItemToPaneInDirection {
13957                    direction: SplitDirection::Right,
13958                    focus: true,
13959                    clone: true,
13960                },
13961                window,
13962                cx,
13963            );
13964        });
13965        cx.run_until_parked();
13966        workspace.update_in(cx, |workspace, window, cx| {
13967            workspace.move_item_to_pane_at_index(
13968                &MoveItemToPane {
13969                    destination: 3,
13970                    focus: true,
13971                    clone: true,
13972                },
13973                window,
13974                cx,
13975            );
13976        });
13977        cx.run_until_parked();
13978
13979        workspace.update(cx, |workspace, cx| {
13980            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
13981            for pane in workspace.panes() {
13982                assert_eq!(
13983                    pane_items_paths(pane, cx),
13984                    vec!["first.txt".to_string()],
13985                    "Single item exists in all panes"
13986                );
13987            }
13988        });
13989
13990        // verify that the active pane has been updated after waiting for the
13991        // pane focus event to fire and resolve
13992        workspace.read_with(cx, |workspace, _app| {
13993            assert_eq!(
13994                workspace.active_pane(),
13995                &workspace.panes[2],
13996                "The third pane should be the active one: {:?}",
13997                workspace.panes
13998            );
13999        })
14000    }
14001
14002    #[gpui::test]
14003    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
14004        init_test(cx);
14005
14006        let fs = FakeFs::new(cx.executor());
14007        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
14008
14009        let project = Project::test(fs, ["root".as_ref()], cx).await;
14010        let (workspace, cx) =
14011            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14012
14013        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14014        // Add item to pane A with project path
14015        let item_a = cx.new(|cx| {
14016            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14017        });
14018        workspace.update_in(cx, |workspace, window, cx| {
14019            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
14020        });
14021
14022        // Split to create pane B
14023        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
14024            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
14025        });
14026
14027        // Add item with SAME project path to pane B, and pin it
14028        let item_b = cx.new(|cx| {
14029            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14030        });
14031        pane_b.update_in(cx, |pane, window, cx| {
14032            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14033            pane.set_pinned_count(1);
14034        });
14035
14036        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
14037        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
14038
14039        // close_pinned: false should only close the unpinned copy
14040        workspace.update_in(cx, |workspace, window, cx| {
14041            workspace.close_item_in_all_panes(
14042                &CloseItemInAllPanes {
14043                    save_intent: Some(SaveIntent::Close),
14044                    close_pinned: false,
14045                },
14046                window,
14047                cx,
14048            )
14049        });
14050        cx.executor().run_until_parked();
14051
14052        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
14053        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14054        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
14055        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
14056
14057        // Split again, seeing as closing the previous item also closed its
14058        // pane, so only pane remains, which does not allow us to properly test
14059        // that both items close when `close_pinned: true`.
14060        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
14061            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
14062        });
14063
14064        // Add an item with the same project path to pane C so that
14065        // close_item_in_all_panes can determine what to close across all panes
14066        // (it reads the active item from the active pane, and split_pane
14067        // creates an empty pane).
14068        let item_c = cx.new(|cx| {
14069            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14070        });
14071        pane_c.update_in(cx, |pane, window, cx| {
14072            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
14073        });
14074
14075        // close_pinned: true should close the pinned copy too
14076        workspace.update_in(cx, |workspace, window, cx| {
14077            let panes_count = workspace.panes().len();
14078            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
14079
14080            workspace.close_item_in_all_panes(
14081                &CloseItemInAllPanes {
14082                    save_intent: Some(SaveIntent::Close),
14083                    close_pinned: true,
14084                },
14085                window,
14086                cx,
14087            )
14088        });
14089        cx.executor().run_until_parked();
14090
14091        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14092        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
14093        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
14094        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
14095    }
14096
14097    mod register_project_item_tests {
14098
14099        use super::*;
14100
14101        // View
14102        struct TestPngItemView {
14103            focus_handle: FocusHandle,
14104        }
14105        // Model
14106        struct TestPngItem {}
14107
14108        impl project::ProjectItem for TestPngItem {
14109            fn try_open(
14110                _project: &Entity<Project>,
14111                path: &ProjectPath,
14112                cx: &mut App,
14113            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14114                if path.path.extension().unwrap() == "png" {
14115                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
14116                } else {
14117                    None
14118                }
14119            }
14120
14121            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14122                None
14123            }
14124
14125            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14126                None
14127            }
14128
14129            fn is_dirty(&self) -> bool {
14130                false
14131            }
14132        }
14133
14134        impl Item for TestPngItemView {
14135            type Event = ();
14136            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14137                "".into()
14138            }
14139        }
14140        impl EventEmitter<()> for TestPngItemView {}
14141        impl Focusable for TestPngItemView {
14142            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14143                self.focus_handle.clone()
14144            }
14145        }
14146
14147        impl Render for TestPngItemView {
14148            fn render(
14149                &mut self,
14150                _window: &mut Window,
14151                _cx: &mut Context<Self>,
14152            ) -> impl IntoElement {
14153                Empty
14154            }
14155        }
14156
14157        impl ProjectItem for TestPngItemView {
14158            type Item = TestPngItem;
14159
14160            fn for_project_item(
14161                _project: Entity<Project>,
14162                _pane: Option<&Pane>,
14163                _item: Entity<Self::Item>,
14164                _: &mut Window,
14165                cx: &mut Context<Self>,
14166            ) -> Self
14167            where
14168                Self: Sized,
14169            {
14170                Self {
14171                    focus_handle: cx.focus_handle(),
14172                }
14173            }
14174        }
14175
14176        // View
14177        struct TestIpynbItemView {
14178            focus_handle: FocusHandle,
14179        }
14180        // Model
14181        struct TestIpynbItem {}
14182
14183        impl project::ProjectItem for TestIpynbItem {
14184            fn try_open(
14185                _project: &Entity<Project>,
14186                path: &ProjectPath,
14187                cx: &mut App,
14188            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14189                if path.path.extension().unwrap() == "ipynb" {
14190                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
14191                } else {
14192                    None
14193                }
14194            }
14195
14196            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14197                None
14198            }
14199
14200            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14201                None
14202            }
14203
14204            fn is_dirty(&self) -> bool {
14205                false
14206            }
14207        }
14208
14209        impl Item for TestIpynbItemView {
14210            type Event = ();
14211            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14212                "".into()
14213            }
14214        }
14215        impl EventEmitter<()> for TestIpynbItemView {}
14216        impl Focusable for TestIpynbItemView {
14217            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14218                self.focus_handle.clone()
14219            }
14220        }
14221
14222        impl Render for TestIpynbItemView {
14223            fn render(
14224                &mut self,
14225                _window: &mut Window,
14226                _cx: &mut Context<Self>,
14227            ) -> impl IntoElement {
14228                Empty
14229            }
14230        }
14231
14232        impl ProjectItem for TestIpynbItemView {
14233            type Item = TestIpynbItem;
14234
14235            fn for_project_item(
14236                _project: Entity<Project>,
14237                _pane: Option<&Pane>,
14238                _item: Entity<Self::Item>,
14239                _: &mut Window,
14240                cx: &mut Context<Self>,
14241            ) -> Self
14242            where
14243                Self: Sized,
14244            {
14245                Self {
14246                    focus_handle: cx.focus_handle(),
14247                }
14248            }
14249        }
14250
14251        struct TestAlternatePngItemView {
14252            focus_handle: FocusHandle,
14253        }
14254
14255        impl Item for TestAlternatePngItemView {
14256            type Event = ();
14257            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14258                "".into()
14259            }
14260        }
14261
14262        impl EventEmitter<()> for TestAlternatePngItemView {}
14263        impl Focusable for TestAlternatePngItemView {
14264            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14265                self.focus_handle.clone()
14266            }
14267        }
14268
14269        impl Render for TestAlternatePngItemView {
14270            fn render(
14271                &mut self,
14272                _window: &mut Window,
14273                _cx: &mut Context<Self>,
14274            ) -> impl IntoElement {
14275                Empty
14276            }
14277        }
14278
14279        impl ProjectItem for TestAlternatePngItemView {
14280            type Item = TestPngItem;
14281
14282            fn for_project_item(
14283                _project: Entity<Project>,
14284                _pane: Option<&Pane>,
14285                _item: Entity<Self::Item>,
14286                _: &mut Window,
14287                cx: &mut Context<Self>,
14288            ) -> Self
14289            where
14290                Self: Sized,
14291            {
14292                Self {
14293                    focus_handle: cx.focus_handle(),
14294                }
14295            }
14296        }
14297
14298        #[gpui::test]
14299        async fn test_register_project_item(cx: &mut TestAppContext) {
14300            init_test(cx);
14301
14302            cx.update(|cx| {
14303                register_project_item::<TestPngItemView>(cx);
14304                register_project_item::<TestIpynbItemView>(cx);
14305            });
14306
14307            let fs = FakeFs::new(cx.executor());
14308            fs.insert_tree(
14309                "/root1",
14310                json!({
14311                    "one.png": "BINARYDATAHERE",
14312                    "two.ipynb": "{ totally a notebook }",
14313                    "three.txt": "editing text, sure why not?"
14314                }),
14315            )
14316            .await;
14317
14318            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14319            let (workspace, cx) =
14320                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14321
14322            let worktree_id = project.update(cx, |project, cx| {
14323                project.worktrees(cx).next().unwrap().read(cx).id()
14324            });
14325
14326            let handle = workspace
14327                .update_in(cx, |workspace, window, cx| {
14328                    let project_path = (worktree_id, rel_path("one.png"));
14329                    workspace.open_path(project_path, None, true, window, cx)
14330                })
14331                .await
14332                .unwrap();
14333
14334            // Now we can check if the handle we got back errored or not
14335            assert_eq!(
14336                handle.to_any_view().entity_type(),
14337                TypeId::of::<TestPngItemView>()
14338            );
14339
14340            let handle = workspace
14341                .update_in(cx, |workspace, window, cx| {
14342                    let project_path = (worktree_id, rel_path("two.ipynb"));
14343                    workspace.open_path(project_path, None, true, window, cx)
14344                })
14345                .await
14346                .unwrap();
14347
14348            assert_eq!(
14349                handle.to_any_view().entity_type(),
14350                TypeId::of::<TestIpynbItemView>()
14351            );
14352
14353            let handle = workspace
14354                .update_in(cx, |workspace, window, cx| {
14355                    let project_path = (worktree_id, rel_path("three.txt"));
14356                    workspace.open_path(project_path, None, true, window, cx)
14357                })
14358                .await;
14359            assert!(handle.is_err());
14360        }
14361
14362        #[gpui::test]
14363        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14364            init_test(cx);
14365
14366            cx.update(|cx| {
14367                register_project_item::<TestPngItemView>(cx);
14368                register_project_item::<TestAlternatePngItemView>(cx);
14369            });
14370
14371            let fs = FakeFs::new(cx.executor());
14372            fs.insert_tree(
14373                "/root1",
14374                json!({
14375                    "one.png": "BINARYDATAHERE",
14376                    "two.ipynb": "{ totally a notebook }",
14377                    "three.txt": "editing text, sure why not?"
14378                }),
14379            )
14380            .await;
14381            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14382            let (workspace, cx) =
14383                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14384            let worktree_id = project.update(cx, |project, cx| {
14385                project.worktrees(cx).next().unwrap().read(cx).id()
14386            });
14387
14388            let handle = workspace
14389                .update_in(cx, |workspace, window, cx| {
14390                    let project_path = (worktree_id, rel_path("one.png"));
14391                    workspace.open_path(project_path, None, true, window, cx)
14392                })
14393                .await
14394                .unwrap();
14395
14396            // This _must_ be the second item registered
14397            assert_eq!(
14398                handle.to_any_view().entity_type(),
14399                TypeId::of::<TestAlternatePngItemView>()
14400            );
14401
14402            let handle = workspace
14403                .update_in(cx, |workspace, window, cx| {
14404                    let project_path = (worktree_id, rel_path("three.txt"));
14405                    workspace.open_path(project_path, None, true, window, cx)
14406                })
14407                .await;
14408            assert!(handle.is_err());
14409        }
14410    }
14411
14412    #[gpui::test]
14413    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14414        init_test(cx);
14415
14416        let fs = FakeFs::new(cx.executor());
14417        let project = Project::test(fs, [], cx).await;
14418        let (workspace, _cx) =
14419            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14420
14421        // Test with status bar shown (default)
14422        workspace.read_with(cx, |workspace, cx| {
14423            let visible = workspace.status_bar_visible(cx);
14424            assert!(visible, "Status bar should be visible by default");
14425        });
14426
14427        // Test with status bar hidden
14428        cx.update_global(|store: &mut SettingsStore, cx| {
14429            store.update_user_settings(cx, |settings| {
14430                settings.status_bar.get_or_insert_default().show = Some(false);
14431            });
14432        });
14433
14434        workspace.read_with(cx, |workspace, cx| {
14435            let visible = workspace.status_bar_visible(cx);
14436            assert!(!visible, "Status bar should be hidden when show is false");
14437        });
14438
14439        // Test with status bar shown explicitly
14440        cx.update_global(|store: &mut SettingsStore, cx| {
14441            store.update_user_settings(cx, |settings| {
14442                settings.status_bar.get_or_insert_default().show = Some(true);
14443            });
14444        });
14445
14446        workspace.read_with(cx, |workspace, cx| {
14447            let visible = workspace.status_bar_visible(cx);
14448            assert!(visible, "Status bar should be visible when show is true");
14449        });
14450    }
14451
14452    #[gpui::test]
14453    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14454        init_test(cx);
14455
14456        let fs = FakeFs::new(cx.executor());
14457        let project = Project::test(fs, [], cx).await;
14458        let (multi_workspace, cx) =
14459            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14460        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14461        let panel = workspace.update_in(cx, |workspace, window, cx| {
14462            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14463            workspace.add_panel(panel.clone(), window, cx);
14464
14465            workspace
14466                .right_dock()
14467                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14468
14469            panel
14470        });
14471
14472        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14473        let item_a = cx.new(TestItem::new);
14474        let item_b = cx.new(TestItem::new);
14475        let item_a_id = item_a.entity_id();
14476        let item_b_id = item_b.entity_id();
14477
14478        pane.update_in(cx, |pane, window, cx| {
14479            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14480            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14481        });
14482
14483        pane.read_with(cx, |pane, _| {
14484            assert_eq!(pane.items_len(), 2);
14485            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14486        });
14487
14488        workspace.update_in(cx, |workspace, window, cx| {
14489            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14490        });
14491
14492        workspace.update_in(cx, |_, window, cx| {
14493            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14494        });
14495
14496        // Assert that the `pane::CloseActiveItem` action is handled at the
14497        // workspace level when one of the dock panels is focused and, in that
14498        // case, the center pane's active item is closed but the focus is not
14499        // moved.
14500        cx.dispatch_action(pane::CloseActiveItem::default());
14501        cx.run_until_parked();
14502
14503        pane.read_with(cx, |pane, _| {
14504            assert_eq!(pane.items_len(), 1);
14505            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14506        });
14507
14508        workspace.update_in(cx, |workspace, window, cx| {
14509            assert!(workspace.right_dock().read(cx).is_open());
14510            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14511        });
14512    }
14513
14514    #[gpui::test]
14515    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14516        init_test(cx);
14517        let fs = FakeFs::new(cx.executor());
14518
14519        let project_a = Project::test(fs.clone(), [], cx).await;
14520        let project_b = Project::test(fs, [], cx).await;
14521
14522        let multi_workspace_handle =
14523            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14524        cx.run_until_parked();
14525
14526        let workspace_a = multi_workspace_handle
14527            .read_with(cx, |mw, _| mw.workspace().clone())
14528            .unwrap();
14529
14530        let _workspace_b = multi_workspace_handle
14531            .update(cx, |mw, window, cx| {
14532                mw.test_add_workspace(project_b, window, cx)
14533            })
14534            .unwrap();
14535
14536        // Switch to workspace A
14537        multi_workspace_handle
14538            .update(cx, |mw, window, cx| {
14539                let workspace = mw.workspaces()[0].clone();
14540                mw.activate(workspace, window, cx);
14541            })
14542            .unwrap();
14543
14544        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14545
14546        // Add a panel to workspace A's right dock and open the dock
14547        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14548            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14549            workspace.add_panel(panel.clone(), window, cx);
14550            workspace
14551                .right_dock()
14552                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14553            panel
14554        });
14555
14556        // Focus the panel through the workspace (matching existing test pattern)
14557        workspace_a.update_in(cx, |workspace, window, cx| {
14558            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14559        });
14560
14561        // Zoom the panel
14562        panel.update_in(cx, |panel, window, cx| {
14563            panel.set_zoomed(true, window, cx);
14564        });
14565
14566        // Verify the panel is zoomed and the dock is open
14567        workspace_a.update_in(cx, |workspace, window, cx| {
14568            assert!(
14569                workspace.right_dock().read(cx).is_open(),
14570                "dock should be open before switch"
14571            );
14572            assert!(
14573                panel.is_zoomed(window, cx),
14574                "panel should be zoomed before switch"
14575            );
14576            assert!(
14577                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14578                "panel should be focused before switch"
14579            );
14580        });
14581
14582        // Switch to workspace B
14583        multi_workspace_handle
14584            .update(cx, |mw, window, cx| {
14585                let workspace = mw.workspaces()[1].clone();
14586                mw.activate(workspace, window, cx);
14587            })
14588            .unwrap();
14589        cx.run_until_parked();
14590
14591        // Switch back to workspace A
14592        multi_workspace_handle
14593            .update(cx, |mw, window, cx| {
14594                let workspace = mw.workspaces()[0].clone();
14595                mw.activate(workspace, window, cx);
14596            })
14597            .unwrap();
14598        cx.run_until_parked();
14599
14600        // Verify the panel is still zoomed and the dock is still open
14601        workspace_a.update_in(cx, |workspace, window, cx| {
14602            assert!(
14603                workspace.right_dock().read(cx).is_open(),
14604                "dock should still be open after switching back"
14605            );
14606            assert!(
14607                panel.is_zoomed(window, cx),
14608                "panel should still be zoomed after switching back"
14609            );
14610        });
14611    }
14612
14613    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14614        pane.read(cx)
14615            .items()
14616            .flat_map(|item| {
14617                item.project_paths(cx)
14618                    .into_iter()
14619                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14620            })
14621            .collect()
14622    }
14623
14624    pub fn init_test(cx: &mut TestAppContext) {
14625        cx.update(|cx| {
14626            let settings_store = SettingsStore::test(cx);
14627            cx.set_global(settings_store);
14628            cx.set_global(db::AppDatabase::test_new());
14629            theme_settings::init(theme::LoadThemes::JustBase, cx);
14630        });
14631    }
14632
14633    #[gpui::test]
14634    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14635        use settings::{ThemeName, ThemeSelection};
14636        use theme::SystemAppearance;
14637        use zed_actions::theme::ToggleMode;
14638
14639        init_test(cx);
14640
14641        let fs = FakeFs::new(cx.executor());
14642        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14643
14644        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14645            .await;
14646
14647        // Build a test project and workspace view so the test can invoke
14648        // the workspace action handler the same way the UI would.
14649        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14650        let (workspace, cx) =
14651            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14652
14653        // Seed the settings file with a plain static light theme so the
14654        // first toggle always starts from a known persisted state.
14655        workspace.update_in(cx, |_workspace, _window, cx| {
14656            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14657            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14658                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14659            });
14660        });
14661        cx.executor().advance_clock(Duration::from_millis(200));
14662        cx.run_until_parked();
14663
14664        // Confirm the initial persisted settings contain the static theme
14665        // we just wrote before any toggling happens.
14666        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14667        assert!(settings_text.contains(r#""theme": "One Light""#));
14668
14669        // Toggle once. This should migrate the persisted theme settings
14670        // into light/dark slots and enable system mode.
14671        workspace.update_in(cx, |workspace, window, cx| {
14672            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14673        });
14674        cx.executor().advance_clock(Duration::from_millis(200));
14675        cx.run_until_parked();
14676
14677        // 1. Static -> Dynamic
14678        // this assertion checks theme changed from static to dynamic.
14679        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14680        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14681        assert_eq!(
14682            parsed["theme"],
14683            serde_json::json!({
14684                "mode": "system",
14685                "light": "One Light",
14686                "dark": "One Dark"
14687            })
14688        );
14689
14690        // 2. Toggle again, suppose it will change the mode to light
14691        workspace.update_in(cx, |workspace, window, cx| {
14692            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14693        });
14694        cx.executor().advance_clock(Duration::from_millis(200));
14695        cx.run_until_parked();
14696
14697        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14698        assert!(settings_text.contains(r#""mode": "light""#));
14699    }
14700
14701    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14702        let item = TestProjectItem::new(id, path, cx);
14703        item.update(cx, |item, _| {
14704            item.is_dirty = true;
14705        });
14706        item
14707    }
14708
14709    #[gpui::test]
14710    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
14711        cx: &mut gpui::TestAppContext,
14712    ) {
14713        init_test(cx);
14714        let fs = FakeFs::new(cx.executor());
14715
14716        let project = Project::test(fs, [], cx).await;
14717        let (workspace, cx) =
14718            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14719
14720        let panel = workspace.update_in(cx, |workspace, window, cx| {
14721            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14722            workspace.add_panel(panel.clone(), window, cx);
14723            workspace
14724                .right_dock()
14725                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14726            panel
14727        });
14728
14729        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14730        pane.update_in(cx, |pane, window, cx| {
14731            let item = cx.new(TestItem::new);
14732            pane.add_item(Box::new(item), true, true, None, window, cx);
14733        });
14734
14735        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
14736        // mirrors the real-world flow and avoids side effects from directly
14737        // focusing the panel while the center pane is active.
14738        workspace.update_in(cx, |workspace, window, cx| {
14739            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14740        });
14741
14742        panel.update_in(cx, |panel, window, cx| {
14743            panel.set_zoomed(true, window, cx);
14744        });
14745
14746        workspace.update_in(cx, |workspace, window, cx| {
14747            assert!(workspace.right_dock().read(cx).is_open());
14748            assert!(panel.is_zoomed(window, cx));
14749            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14750        });
14751
14752        // Simulate a spurious pane::Event::Focus on the center pane while the
14753        // panel still has focus. This mirrors what happens during macOS window
14754        // activation: the center pane fires a focus event even though actual
14755        // focus remains on the dock panel.
14756        pane.update_in(cx, |_, _, cx| {
14757            cx.emit(pane::Event::Focus);
14758        });
14759
14760        // The dock must remain open because the panel had focus at the time the
14761        // event was processed. Before the fix, dock_to_preserve was None for
14762        // panels that don't implement pane(), causing the dock to close.
14763        workspace.update_in(cx, |workspace, window, cx| {
14764            assert!(
14765                workspace.right_dock().read(cx).is_open(),
14766                "Dock should stay open when its zoomed panel (without pane()) still has focus"
14767            );
14768            assert!(panel.is_zoomed(window, cx));
14769        });
14770    }
14771
14772    #[gpui::test]
14773    async fn test_panels_stay_open_after_position_change_and_settings_update(
14774        cx: &mut gpui::TestAppContext,
14775    ) {
14776        init_test(cx);
14777        let fs = FakeFs::new(cx.executor());
14778        let project = Project::test(fs, [], cx).await;
14779        let (workspace, cx) =
14780            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14781
14782        // Add two panels to the left dock and open it.
14783        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
14784            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
14785            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
14786            workspace.add_panel(panel_a.clone(), window, cx);
14787            workspace.add_panel(panel_b.clone(), window, cx);
14788            workspace.left_dock().update(cx, |dock, cx| {
14789                dock.set_open(true, window, cx);
14790                dock.activate_panel(0, window, cx);
14791            });
14792            (panel_a, panel_b)
14793        });
14794
14795        workspace.update_in(cx, |workspace, _, cx| {
14796            assert!(workspace.left_dock().read(cx).is_open());
14797        });
14798
14799        // Simulate a feature flag changing default dock positions: both panels
14800        // move from Left to Right.
14801        workspace.update_in(cx, |_workspace, _window, cx| {
14802            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
14803            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
14804            cx.update_global::<SettingsStore, _>(|_, _| {});
14805        });
14806
14807        // Both panels should now be in the right dock.
14808        workspace.update_in(cx, |workspace, _, cx| {
14809            let right_dock = workspace.right_dock().read(cx);
14810            assert_eq!(right_dock.panels_len(), 2);
14811        });
14812
14813        // Open the right dock and activate panel_b (simulating the user
14814        // opening the panel after it moved).
14815        workspace.update_in(cx, |workspace, window, cx| {
14816            workspace.right_dock().update(cx, |dock, cx| {
14817                dock.set_open(true, window, cx);
14818                dock.activate_panel(1, window, cx);
14819            });
14820        });
14821
14822        // Now trigger another SettingsStore change
14823        workspace.update_in(cx, |_workspace, _window, cx| {
14824            cx.update_global::<SettingsStore, _>(|_, _| {});
14825        });
14826
14827        workspace.update_in(cx, |workspace, _, cx| {
14828            assert!(
14829                workspace.right_dock().read(cx).is_open(),
14830                "Right dock should still be open after a settings change"
14831            );
14832            assert_eq!(
14833                workspace.right_dock().read(cx).panels_len(),
14834                2,
14835                "Both panels should still be in the right dock"
14836            );
14837        });
14838    }
14839}