workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12mod security_modal;
   13pub mod shared_screen;
   14mod status_bar;
   15pub mod tasks;
   16mod theme_preview;
   17mod toast_layer;
   18mod toolbar;
   19pub mod utility_pane;
   20pub mod welcome;
   21mod workspace_settings;
   22
   23pub use crate::notifications::NotificationFrame;
   24pub use dock::Panel;
   25pub use path_list::PathList;
   26pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   27
   28use anyhow::{Context as _, Result, anyhow};
   29use call::{ActiveCall, call_settings::CallSettings};
   30use client::{
   31    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   32    proto::{self, ErrorCode, PanelId, PeerId},
   33};
   34use collections::{HashMap, HashSet, hash_map};
   35use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   36use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   37use futures::{
   38    Future, FutureExt, StreamExt,
   39    channel::{
   40        mpsc::{self, UnboundedReceiver, UnboundedSender},
   41        oneshot,
   42    },
   43    future::{Shared, try_join_all},
   44};
   45use gpui::{
   46    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   47    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   48    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   49    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   50    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   51    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   52};
   53pub use history_manager::*;
   54pub use item::{
   55    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   56    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   57};
   58use itertools::Itertools;
   59use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   60pub use modal_layer::*;
   61use node_runtime::NodeRuntime;
   62use notifications::{
   63    DetachAndPromptErr, Notifications, dismiss_app_notification,
   64    simple_message_notification::MessageNotification,
   65};
   66pub use pane::*;
   67pub use pane_group::{
   68    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   69    SplitDirection,
   70};
   71use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   72pub use persistence::{
   73    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   74    model::{ItemId, SerializedWorkspaceLocation},
   75};
   76use postage::stream::Stream;
   77use project::{
   78    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   79    WorktreeSettings,
   80    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   81    project_settings::ProjectSettings,
   82    toolchain_store::ToolchainStoreEvent,
   83    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   84};
   85use remote::{
   86    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   87    remote_client::ConnectionIdentifier,
   88};
   89use schemars::JsonSchema;
   90use serde::Deserialize;
   91use session::AppSession;
   92use settings::{
   93    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   94};
   95use shared_screen::SharedScreen;
   96use sqlez::{
   97    bindable::{Bind, Column, StaticColumnCount},
   98    statement::Statement,
   99};
  100use status_bar::StatusBar;
  101pub use status_bar::StatusItemView;
  102use std::{
  103    any::TypeId,
  104    borrow::Cow,
  105    cell::RefCell,
  106    cmp,
  107    collections::{VecDeque, hash_map::DefaultHasher},
  108    env,
  109    hash::{Hash, Hasher},
  110    path::{Path, PathBuf},
  111    process::ExitStatus,
  112    rc::Rc,
  113    sync::{
  114        Arc, LazyLock, Weak,
  115        atomic::{AtomicBool, AtomicUsize},
  116    },
  117    time::Duration,
  118};
  119use task::{DebugScenario, SpawnInTerminal, TaskContext};
  120use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  121pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  122pub use ui;
  123use ui::{Window, prelude::*};
  124use util::{
  125    ResultExt, TryFutureExt,
  126    paths::{PathStyle, SanitizedPath},
  127    rel_path::RelPath,
  128    serde::default_true,
  129};
  130use uuid::Uuid;
  131pub use workspace_settings::{
  132    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  133    WorkspaceSettings,
  134};
  135use zed_actions::{Spawn, feedback::FileBugReport};
  136
  137use crate::{
  138    item::ItemBufferKind,
  139    notifications::NotificationId,
  140    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  141};
  142use crate::{
  143    persistence::{
  144        SerializedAxis,
  145        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  146    },
  147    security_modal::SecurityModal,
  148    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  149};
  150
  151pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  152
  153static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  154    env::var("ZED_WINDOW_SIZE")
  155        .ok()
  156        .as_deref()
  157        .and_then(parse_pixel_size_env_var)
  158});
  159
  160static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  161    env::var("ZED_WINDOW_POSITION")
  162        .ok()
  163        .as_deref()
  164        .and_then(parse_pixel_position_env_var)
  165});
  166
  167pub trait TerminalProvider {
  168    fn spawn(
  169        &self,
  170        task: SpawnInTerminal,
  171        window: &mut Window,
  172        cx: &mut App,
  173    ) -> Task<Option<Result<ExitStatus>>>;
  174}
  175
  176pub trait DebuggerProvider {
  177    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  178    fn start_session(
  179        &self,
  180        definition: DebugScenario,
  181        task_context: TaskContext,
  182        active_buffer: Option<Entity<Buffer>>,
  183        worktree_id: Option<WorktreeId>,
  184        window: &mut Window,
  185        cx: &mut App,
  186    );
  187
  188    fn spawn_task_or_modal(
  189        &self,
  190        workspace: &mut Workspace,
  191        action: &Spawn,
  192        window: &mut Window,
  193        cx: &mut Context<Workspace>,
  194    );
  195
  196    fn task_scheduled(&self, cx: &mut App);
  197    fn debug_scenario_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  199
  200    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  201}
  202
  203actions!(
  204    workspace,
  205    [
  206        /// Activates the next pane in the workspace.
  207        ActivateNextPane,
  208        /// Activates the previous pane in the workspace.
  209        ActivatePreviousPane,
  210        /// Switches to the next window.
  211        ActivateNextWindow,
  212        /// Switches to the previous window.
  213        ActivatePreviousWindow,
  214        /// Adds a folder to the current project.
  215        AddFolderToProject,
  216        /// Opens the project switcher dropdown (only visible when multiple folders are open).
  217        SwitchProject,
  218        /// Clears all notifications.
  219        ClearAllNotifications,
  220        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  221        ClearNavigationHistory,
  222        /// Closes the active dock.
  223        CloseActiveDock,
  224        /// Closes all docks.
  225        CloseAllDocks,
  226        /// Toggles all docks.
  227        ToggleAllDocks,
  228        /// Closes the current window.
  229        CloseWindow,
  230        /// Opens the feedback dialog.
  231        Feedback,
  232        /// Follows the next collaborator in the session.
  233        FollowNextCollaborator,
  234        /// Moves the focused panel to the next position.
  235        MoveFocusedPanelToNextPosition,
  236        /// Creates a new file.
  237        NewFile,
  238        /// Creates a new file in a vertical split.
  239        NewFileSplitVertical,
  240        /// Creates a new file in a horizontal split.
  241        NewFileSplitHorizontal,
  242        /// Opens a new search.
  243        NewSearch,
  244        /// Opens a new window.
  245        NewWindow,
  246        /// Opens a file or directory.
  247        Open,
  248        /// Opens multiple files.
  249        OpenFiles,
  250        /// Opens the current location in terminal.
  251        OpenInTerminal,
  252        /// Opens the component preview.
  253        OpenComponentPreview,
  254        /// Reloads the active item.
  255        ReloadActiveItem,
  256        /// Resets the active dock to its default size.
  257        ResetActiveDockSize,
  258        /// Resets all open docks to their default sizes.
  259        ResetOpenDocksSize,
  260        /// Reloads the application
  261        Reload,
  262        /// Saves the current file with a new name.
  263        SaveAs,
  264        /// Saves without formatting.
  265        SaveWithoutFormat,
  266        /// Shuts down all debug adapters.
  267        ShutdownDebugAdapters,
  268        /// Suppresses the current notification.
  269        SuppressNotification,
  270        /// Toggles the bottom dock.
  271        ToggleBottomDock,
  272        /// Toggles centered layout mode.
  273        ToggleCenteredLayout,
  274        /// Toggles edit prediction feature globally for all files.
  275        ToggleEditPrediction,
  276        /// Toggles the left dock.
  277        ToggleLeftDock,
  278        /// Toggles the right dock.
  279        ToggleRightDock,
  280        /// Toggles zoom on the active pane.
  281        ToggleZoom,
  282        /// Toggles read-only mode for the active item (if supported by that item).
  283        ToggleReadOnlyFile,
  284        /// Zooms in on the active pane.
  285        ZoomIn,
  286        /// Zooms out of the active pane.
  287        ZoomOut,
  288        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  289        /// If the modal is shown already, closes it without trusting any worktree.
  290        ToggleWorktreeSecurity,
  291        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  292        /// Requires restart to take effect on already opened projects.
  293        ClearTrustedWorktrees,
  294        /// Stops following a collaborator.
  295        Unfollow,
  296        /// Restores the banner.
  297        RestoreBanner,
  298        /// Toggles expansion of the selected item.
  299        ToggleExpandItem,
  300    ]
  301);
  302
  303/// Activates a specific pane by its index.
  304#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  305#[action(namespace = workspace)]
  306pub struct ActivatePane(pub usize);
  307
  308/// Moves an item to a specific pane by index.
  309#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  310#[action(namespace = workspace)]
  311#[serde(deny_unknown_fields)]
  312pub struct MoveItemToPane {
  313    #[serde(default = "default_1")]
  314    pub destination: usize,
  315    #[serde(default = "default_true")]
  316    pub focus: bool,
  317    #[serde(default)]
  318    pub clone: bool,
  319}
  320
  321fn default_1() -> usize {
  322    1
  323}
  324
  325/// Moves an item to a pane in the specified direction.
  326#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  327#[action(namespace = workspace)]
  328#[serde(deny_unknown_fields)]
  329pub struct MoveItemToPaneInDirection {
  330    #[serde(default = "default_right")]
  331    pub direction: SplitDirection,
  332    #[serde(default = "default_true")]
  333    pub focus: bool,
  334    #[serde(default)]
  335    pub clone: bool,
  336}
  337
  338/// Creates a new file in a split of the desired direction.
  339#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct NewFileSplit(pub SplitDirection);
  343
  344fn default_right() -> SplitDirection {
  345    SplitDirection::Right
  346}
  347
  348/// Saves all open files in the workspace.
  349#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  350#[action(namespace = workspace)]
  351#[serde(deny_unknown_fields)]
  352pub struct SaveAll {
  353    #[serde(default)]
  354    pub save_intent: Option<SaveIntent>,
  355}
  356
  357/// Saves the current file with the specified options.
  358#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct Save {
  362    #[serde(default)]
  363    pub save_intent: Option<SaveIntent>,
  364}
  365
  366/// Closes all items and panes in the workspace.
  367#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct CloseAllItemsAndPanes {
  371    #[serde(default)]
  372    pub save_intent: Option<SaveIntent>,
  373}
  374
  375/// Closes all inactive tabs and panes in the workspace.
  376#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct CloseInactiveTabsAndPanes {
  380    #[serde(default)]
  381    pub save_intent: Option<SaveIntent>,
  382}
  383
  384/// Sends a sequence of keystrokes to the active element.
  385#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387pub struct SendKeystrokes(pub String);
  388
  389actions!(
  390    project_symbols,
  391    [
  392        /// Toggles the project symbols search.
  393        #[action(name = "Toggle")]
  394        ToggleProjectSymbols
  395    ]
  396);
  397
  398/// Toggles the file finder interface.
  399#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  400#[action(namespace = file_finder, name = "Toggle")]
  401#[serde(deny_unknown_fields)]
  402pub struct ToggleFileFinder {
  403    #[serde(default)]
  404    pub separate_history: bool,
  405}
  406
  407/// Opens a new terminal in the center.
  408#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  409#[action(namespace = workspace)]
  410#[serde(deny_unknown_fields)]
  411pub struct NewCenterTerminal {
  412    /// If true, creates a local terminal even in remote projects.
  413    #[serde(default)]
  414    pub local: bool,
  415}
  416
  417/// Opens a new terminal.
  418#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct NewTerminal {
  422    /// If true, creates a local terminal even in remote projects.
  423    #[serde(default)]
  424    pub local: bool,
  425}
  426
  427/// Increases size of a currently focused dock by a given amount of pixels.
  428#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  429#[action(namespace = workspace)]
  430#[serde(deny_unknown_fields)]
  431pub struct IncreaseActiveDockSize {
  432    /// For 0px parameter, uses UI font size value.
  433    #[serde(default)]
  434    pub px: u32,
  435}
  436
  437/// Decreases size of a currently focused dock by a given amount of pixels.
  438#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440#[serde(deny_unknown_fields)]
  441pub struct DecreaseActiveDockSize {
  442    /// For 0px parameter, uses UI font size value.
  443    #[serde(default)]
  444    pub px: u32,
  445}
  446
  447/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  448#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  449#[action(namespace = workspace)]
  450#[serde(deny_unknown_fields)]
  451pub struct IncreaseOpenDocksSize {
  452    /// For 0px parameter, uses UI font size value.
  453    #[serde(default)]
  454    pub px: u32,
  455}
  456
  457/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  458#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  459#[action(namespace = workspace)]
  460#[serde(deny_unknown_fields)]
  461pub struct DecreaseOpenDocksSize {
  462    /// For 0px parameter, uses UI font size value.
  463    #[serde(default)]
  464    pub px: u32,
  465}
  466
  467actions!(
  468    workspace,
  469    [
  470        /// Activates the pane to the left.
  471        ActivatePaneLeft,
  472        /// Activates the pane to the right.
  473        ActivatePaneRight,
  474        /// Activates the pane above.
  475        ActivatePaneUp,
  476        /// Activates the pane below.
  477        ActivatePaneDown,
  478        /// Swaps the current pane with the one to the left.
  479        SwapPaneLeft,
  480        /// Swaps the current pane with the one to the right.
  481        SwapPaneRight,
  482        /// Swaps the current pane with the one above.
  483        SwapPaneUp,
  484        /// Swaps the current pane with the one below.
  485        SwapPaneDown,
  486        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  487        SwapPaneAdjacent,
  488        /// Move the current pane to be at the far left.
  489        MovePaneLeft,
  490        /// Move the current pane to be at the far right.
  491        MovePaneRight,
  492        /// Move the current pane to be at the very top.
  493        MovePaneUp,
  494        /// Move the current pane to be at the very bottom.
  495        MovePaneDown,
  496    ]
  497);
  498
  499#[derive(PartialEq, Eq, Debug)]
  500pub enum CloseIntent {
  501    /// Quit the program entirely.
  502    Quit,
  503    /// Close a window.
  504    CloseWindow,
  505    /// Replace the workspace in an existing window.
  506    ReplaceWindow,
  507}
  508
  509#[derive(Clone)]
  510pub struct Toast {
  511    id: NotificationId,
  512    msg: Cow<'static, str>,
  513    autohide: bool,
  514    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  515}
  516
  517impl Toast {
  518    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  519        Toast {
  520            id,
  521            msg: msg.into(),
  522            on_click: None,
  523            autohide: false,
  524        }
  525    }
  526
  527    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  528    where
  529        M: Into<Cow<'static, str>>,
  530        F: Fn(&mut Window, &mut App) + 'static,
  531    {
  532        self.on_click = Some((message.into(), Arc::new(on_click)));
  533        self
  534    }
  535
  536    pub fn autohide(mut self) -> Self {
  537        self.autohide = true;
  538        self
  539    }
  540}
  541
  542impl PartialEq for Toast {
  543    fn eq(&self, other: &Self) -> bool {
  544        self.id == other.id
  545            && self.msg == other.msg
  546            && self.on_click.is_some() == other.on_click.is_some()
  547    }
  548}
  549
  550/// Opens a new terminal with the specified working directory.
  551#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  552#[action(namespace = workspace)]
  553#[serde(deny_unknown_fields)]
  554pub struct OpenTerminal {
  555    pub working_directory: PathBuf,
  556    /// If true, creates a local terminal even in remote projects.
  557    #[serde(default)]
  558    pub local: bool,
  559}
  560
  561#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  562pub struct WorkspaceId(i64);
  563
  564impl StaticColumnCount for WorkspaceId {}
  565impl Bind for WorkspaceId {
  566    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  567        self.0.bind(statement, start_index)
  568    }
  569}
  570impl Column for WorkspaceId {
  571    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  572        i64::column(statement, start_index)
  573            .map(|(i, next_index)| (Self(i), next_index))
  574            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  575    }
  576}
  577impl From<WorkspaceId> for i64 {
  578    fn from(val: WorkspaceId) -> Self {
  579        val.0
  580    }
  581}
  582
  583fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  584    let paths = cx.prompt_for_paths(options);
  585    cx.spawn(
  586        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  587            Ok(Some(paths)) => {
  588                cx.update(|cx| {
  589                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  590                });
  591            }
  592            Ok(None) => {}
  593            Err(err) => {
  594                util::log_err(&err);
  595                cx.update(|cx| {
  596                    if let Some(workspace_window) = cx
  597                        .active_window()
  598                        .and_then(|window| window.downcast::<Workspace>())
  599                    {
  600                        workspace_window
  601                            .update(cx, |workspace, _, cx| {
  602                                workspace.show_portal_error(err.to_string(), cx);
  603                            })
  604                            .ok();
  605                    }
  606                });
  607            }
  608        },
  609    )
  610    .detach();
  611}
  612
  613pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  614    component::init();
  615    theme_preview::init(cx);
  616    toast_layer::init(cx);
  617    history_manager::init(cx);
  618
  619    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  620        .on_action(|_: &Reload, cx| reload(cx))
  621        .on_action({
  622            let app_state = Arc::downgrade(&app_state);
  623            move |_: &Open, cx: &mut App| {
  624                if let Some(app_state) = app_state.upgrade() {
  625                    prompt_and_open_paths(
  626                        app_state,
  627                        PathPromptOptions {
  628                            files: true,
  629                            directories: true,
  630                            multiple: true,
  631                            prompt: None,
  632                        },
  633                        cx,
  634                    );
  635                }
  636            }
  637        })
  638        .on_action({
  639            let app_state = Arc::downgrade(&app_state);
  640            move |_: &OpenFiles, cx: &mut App| {
  641                let directories = cx.can_select_mixed_files_and_dirs();
  642                if let Some(app_state) = app_state.upgrade() {
  643                    prompt_and_open_paths(
  644                        app_state,
  645                        PathPromptOptions {
  646                            files: true,
  647                            directories,
  648                            multiple: true,
  649                            prompt: None,
  650                        },
  651                        cx,
  652                    );
  653                }
  654            }
  655        });
  656}
  657
  658type BuildProjectItemFn =
  659    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  660
  661type BuildProjectItemForPathFn =
  662    fn(
  663        &Entity<Project>,
  664        &ProjectPath,
  665        &mut Window,
  666        &mut App,
  667    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  668
  669#[derive(Clone, Default)]
  670struct ProjectItemRegistry {
  671    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  672    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  673}
  674
  675impl ProjectItemRegistry {
  676    fn register<T: ProjectItem>(&mut self) {
  677        self.build_project_item_fns_by_type.insert(
  678            TypeId::of::<T::Item>(),
  679            |item, project, pane, window, cx| {
  680                let item = item.downcast().unwrap();
  681                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  682                    as Box<dyn ItemHandle>
  683            },
  684        );
  685        self.build_project_item_for_path_fns
  686            .push(|project, project_path, window, cx| {
  687                let project_path = project_path.clone();
  688                let is_file = project
  689                    .read(cx)
  690                    .entry_for_path(&project_path, cx)
  691                    .is_some_and(|entry| entry.is_file());
  692                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  693                let is_local = project.read(cx).is_local();
  694                let project_item =
  695                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  696                let project = project.clone();
  697                Some(window.spawn(cx, async move |cx| {
  698                    match project_item.await.with_context(|| {
  699                        format!(
  700                            "opening project path {:?}",
  701                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  702                        )
  703                    }) {
  704                        Ok(project_item) => {
  705                            let project_item = project_item;
  706                            let project_entry_id: Option<ProjectEntryId> =
  707                                project_item.read_with(cx, project::ProjectItem::entry_id);
  708                            let build_workspace_item = Box::new(
  709                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  710                                    Box::new(cx.new(|cx| {
  711                                        T::for_project_item(
  712                                            project,
  713                                            Some(pane),
  714                                            project_item,
  715                                            window,
  716                                            cx,
  717                                        )
  718                                    })) as Box<dyn ItemHandle>
  719                                },
  720                            ) as Box<_>;
  721                            Ok((project_entry_id, build_workspace_item))
  722                        }
  723                        Err(e) => {
  724                            log::warn!("Failed to open a project item: {e:#}");
  725                            if e.error_code() == ErrorCode::Internal {
  726                                if let Some(abs_path) =
  727                                    entry_abs_path.as_deref().filter(|_| is_file)
  728                                {
  729                                    if let Some(broken_project_item_view) =
  730                                        cx.update(|window, cx| {
  731                                            T::for_broken_project_item(
  732                                                abs_path, is_local, &e, window, cx,
  733                                            )
  734                                        })?
  735                                    {
  736                                        let build_workspace_item = Box::new(
  737                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  738                                                cx.new(|_| broken_project_item_view).boxed_clone()
  739                                            },
  740                                        )
  741                                        as Box<_>;
  742                                        return Ok((None, build_workspace_item));
  743                                    }
  744                                }
  745                            }
  746                            Err(e)
  747                        }
  748                    }
  749                }))
  750            });
  751    }
  752
  753    fn open_path(
  754        &self,
  755        project: &Entity<Project>,
  756        path: &ProjectPath,
  757        window: &mut Window,
  758        cx: &mut App,
  759    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  760        let Some(open_project_item) = self
  761            .build_project_item_for_path_fns
  762            .iter()
  763            .rev()
  764            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  765        else {
  766            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  767        };
  768        open_project_item
  769    }
  770
  771    fn build_item<T: project::ProjectItem>(
  772        &self,
  773        item: Entity<T>,
  774        project: Entity<Project>,
  775        pane: Option<&Pane>,
  776        window: &mut Window,
  777        cx: &mut App,
  778    ) -> Option<Box<dyn ItemHandle>> {
  779        let build = self
  780            .build_project_item_fns_by_type
  781            .get(&TypeId::of::<T>())?;
  782        Some(build(item.into_any(), project, pane, window, cx))
  783    }
  784}
  785
  786type WorkspaceItemBuilder =
  787    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  788
  789impl Global for ProjectItemRegistry {}
  790
  791/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  792/// items will get a chance to open the file, starting from the project item that
  793/// was added last.
  794pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  795    cx.default_global::<ProjectItemRegistry>().register::<I>();
  796}
  797
  798#[derive(Default)]
  799pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  800
  801struct FollowableViewDescriptor {
  802    from_state_proto: fn(
  803        Entity<Workspace>,
  804        ViewId,
  805        &mut Option<proto::view::Variant>,
  806        &mut Window,
  807        &mut App,
  808    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  809    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  810}
  811
  812impl Global for FollowableViewRegistry {}
  813
  814impl FollowableViewRegistry {
  815    pub fn register<I: FollowableItem>(cx: &mut App) {
  816        cx.default_global::<Self>().0.insert(
  817            TypeId::of::<I>(),
  818            FollowableViewDescriptor {
  819                from_state_proto: |workspace, id, state, window, cx| {
  820                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  821                        cx.foreground_executor()
  822                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  823                    })
  824                },
  825                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  826            },
  827        );
  828    }
  829
  830    pub fn from_state_proto(
  831        workspace: Entity<Workspace>,
  832        view_id: ViewId,
  833        mut state: Option<proto::view::Variant>,
  834        window: &mut Window,
  835        cx: &mut App,
  836    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  837        cx.update_default_global(|this: &mut Self, cx| {
  838            this.0.values().find_map(|descriptor| {
  839                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  840            })
  841        })
  842    }
  843
  844    pub fn to_followable_view(
  845        view: impl Into<AnyView>,
  846        cx: &App,
  847    ) -> Option<Box<dyn FollowableItemHandle>> {
  848        let this = cx.try_global::<Self>()?;
  849        let view = view.into();
  850        let descriptor = this.0.get(&view.entity_type())?;
  851        Some((descriptor.to_followable_view)(&view))
  852    }
  853}
  854
  855#[derive(Copy, Clone)]
  856struct SerializableItemDescriptor {
  857    deserialize: fn(
  858        Entity<Project>,
  859        WeakEntity<Workspace>,
  860        WorkspaceId,
  861        ItemId,
  862        &mut Window,
  863        &mut Context<Pane>,
  864    ) -> Task<Result<Box<dyn ItemHandle>>>,
  865    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  866    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  867}
  868
  869#[derive(Default)]
  870struct SerializableItemRegistry {
  871    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  872    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  873}
  874
  875impl Global for SerializableItemRegistry {}
  876
  877impl SerializableItemRegistry {
  878    fn deserialize(
  879        item_kind: &str,
  880        project: Entity<Project>,
  881        workspace: WeakEntity<Workspace>,
  882        workspace_id: WorkspaceId,
  883        item_item: ItemId,
  884        window: &mut Window,
  885        cx: &mut Context<Pane>,
  886    ) -> Task<Result<Box<dyn ItemHandle>>> {
  887        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  888            return Task::ready(Err(anyhow!(
  889                "cannot deserialize {}, descriptor not found",
  890                item_kind
  891            )));
  892        };
  893
  894        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  895    }
  896
  897    fn cleanup(
  898        item_kind: &str,
  899        workspace_id: WorkspaceId,
  900        loaded_items: Vec<ItemId>,
  901        window: &mut Window,
  902        cx: &mut App,
  903    ) -> Task<Result<()>> {
  904        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  905            return Task::ready(Err(anyhow!(
  906                "cannot cleanup {}, descriptor not found",
  907                item_kind
  908            )));
  909        };
  910
  911        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  912    }
  913
  914    fn view_to_serializable_item_handle(
  915        view: AnyView,
  916        cx: &App,
  917    ) -> Option<Box<dyn SerializableItemHandle>> {
  918        let this = cx.try_global::<Self>()?;
  919        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  920        Some((descriptor.view_to_serializable_item)(view))
  921    }
  922
  923    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  924        let this = cx.try_global::<Self>()?;
  925        this.descriptors_by_kind.get(item_kind).copied()
  926    }
  927}
  928
  929pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  930    let serialized_item_kind = I::serialized_item_kind();
  931
  932    let registry = cx.default_global::<SerializableItemRegistry>();
  933    let descriptor = SerializableItemDescriptor {
  934        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  935            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  936            cx.foreground_executor()
  937                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  938        },
  939        cleanup: |workspace_id, loaded_items, window, cx| {
  940            I::cleanup(workspace_id, loaded_items, window, cx)
  941        },
  942        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  943    };
  944    registry
  945        .descriptors_by_kind
  946        .insert(Arc::from(serialized_item_kind), descriptor);
  947    registry
  948        .descriptors_by_type
  949        .insert(TypeId::of::<I>(), descriptor);
  950}
  951
  952pub struct AppState {
  953    pub languages: Arc<LanguageRegistry>,
  954    pub client: Arc<Client>,
  955    pub user_store: Entity<UserStore>,
  956    pub workspace_store: Entity<WorkspaceStore>,
  957    pub fs: Arc<dyn fs::Fs>,
  958    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  959    pub node_runtime: NodeRuntime,
  960    pub session: Entity<AppSession>,
  961}
  962
  963struct GlobalAppState(Weak<AppState>);
  964
  965impl Global for GlobalAppState {}
  966
  967pub struct WorkspaceStore {
  968    workspaces: HashSet<WindowHandle<Workspace>>,
  969    client: Arc<Client>,
  970    _subscriptions: Vec<client::Subscription>,
  971}
  972
  973#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  974pub enum CollaboratorId {
  975    PeerId(PeerId),
  976    Agent,
  977}
  978
  979impl From<PeerId> for CollaboratorId {
  980    fn from(peer_id: PeerId) -> Self {
  981        CollaboratorId::PeerId(peer_id)
  982    }
  983}
  984
  985impl From<&PeerId> for CollaboratorId {
  986    fn from(peer_id: &PeerId) -> Self {
  987        CollaboratorId::PeerId(*peer_id)
  988    }
  989}
  990
  991#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  992struct Follower {
  993    project_id: Option<u64>,
  994    peer_id: PeerId,
  995}
  996
  997impl AppState {
  998    #[track_caller]
  999    pub fn global(cx: &App) -> Weak<Self> {
 1000        cx.global::<GlobalAppState>().0.clone()
 1001    }
 1002    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1003        cx.try_global::<GlobalAppState>()
 1004            .map(|state| state.0.clone())
 1005    }
 1006    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1007        cx.set_global(GlobalAppState(state));
 1008    }
 1009
 1010    #[cfg(any(test, feature = "test-support"))]
 1011    pub fn test(cx: &mut App) -> Arc<Self> {
 1012        use fs::Fs;
 1013        use node_runtime::NodeRuntime;
 1014        use session::Session;
 1015        use settings::SettingsStore;
 1016
 1017        if !cx.has_global::<SettingsStore>() {
 1018            let settings_store = SettingsStore::test(cx);
 1019            cx.set_global(settings_store);
 1020        }
 1021
 1022        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1023        <dyn Fs>::set_global(fs.clone(), cx);
 1024        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1025        let clock = Arc::new(clock::FakeSystemClock::new());
 1026        let http_client = http_client::FakeHttpClient::with_404_response();
 1027        let client = Client::new(clock, http_client, cx);
 1028        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1029        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1030        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1031
 1032        theme::init(theme::LoadThemes::JustBase, cx);
 1033        client::init(&client, cx);
 1034
 1035        Arc::new(Self {
 1036            client,
 1037            fs,
 1038            languages,
 1039            user_store,
 1040            workspace_store,
 1041            node_runtime: NodeRuntime::unavailable(),
 1042            build_window_options: |_, _| Default::default(),
 1043            session,
 1044        })
 1045    }
 1046}
 1047
 1048struct DelayedDebouncedEditAction {
 1049    task: Option<Task<()>>,
 1050    cancel_channel: Option<oneshot::Sender<()>>,
 1051}
 1052
 1053impl DelayedDebouncedEditAction {
 1054    fn new() -> DelayedDebouncedEditAction {
 1055        DelayedDebouncedEditAction {
 1056            task: None,
 1057            cancel_channel: None,
 1058        }
 1059    }
 1060
 1061    fn fire_new<F>(
 1062        &mut self,
 1063        delay: Duration,
 1064        window: &mut Window,
 1065        cx: &mut Context<Workspace>,
 1066        func: F,
 1067    ) where
 1068        F: 'static
 1069            + Send
 1070            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1071    {
 1072        if let Some(channel) = self.cancel_channel.take() {
 1073            _ = channel.send(());
 1074        }
 1075
 1076        let (sender, mut receiver) = oneshot::channel::<()>();
 1077        self.cancel_channel = Some(sender);
 1078
 1079        let previous_task = self.task.take();
 1080        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1081            let mut timer = cx.background_executor().timer(delay).fuse();
 1082            if let Some(previous_task) = previous_task {
 1083                previous_task.await;
 1084            }
 1085
 1086            futures::select_biased! {
 1087                _ = receiver => return,
 1088                    _ = timer => {}
 1089            }
 1090
 1091            if let Some(result) = workspace
 1092                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1093                .log_err()
 1094            {
 1095                result.await.log_err();
 1096            }
 1097        }));
 1098    }
 1099}
 1100
 1101pub enum Event {
 1102    PaneAdded(Entity<Pane>),
 1103    PaneRemoved,
 1104    ItemAdded {
 1105        item: Box<dyn ItemHandle>,
 1106    },
 1107    ActiveItemChanged,
 1108    ItemRemoved {
 1109        item_id: EntityId,
 1110    },
 1111    UserSavedItem {
 1112        pane: WeakEntity<Pane>,
 1113        item: Box<dyn WeakItemHandle>,
 1114        save_intent: SaveIntent,
 1115    },
 1116    ContactRequestedJoin(u64),
 1117    WorkspaceCreated(WeakEntity<Workspace>),
 1118    OpenBundledFile {
 1119        text: Cow<'static, str>,
 1120        title: &'static str,
 1121        language: &'static str,
 1122    },
 1123    ZoomChanged,
 1124    ModalOpened,
 1125}
 1126
 1127#[derive(Debug)]
 1128pub enum OpenVisible {
 1129    All,
 1130    None,
 1131    OnlyFiles,
 1132    OnlyDirectories,
 1133}
 1134
 1135enum WorkspaceLocation {
 1136    // Valid local paths or SSH project to serialize
 1137    Location(SerializedWorkspaceLocation, PathList),
 1138    // No valid location found hence clear session id
 1139    DetachFromSession,
 1140    // No valid location found to serialize
 1141    None,
 1142}
 1143
 1144type PromptForNewPath = Box<
 1145    dyn Fn(
 1146        &mut Workspace,
 1147        DirectoryLister,
 1148        &mut Window,
 1149        &mut Context<Workspace>,
 1150    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1151>;
 1152
 1153type PromptForOpenPath = Box<
 1154    dyn Fn(
 1155        &mut Workspace,
 1156        DirectoryLister,
 1157        &mut Window,
 1158        &mut Context<Workspace>,
 1159    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1160>;
 1161
 1162#[derive(Default)]
 1163struct DispatchingKeystrokes {
 1164    dispatched: HashSet<Vec<Keystroke>>,
 1165    queue: VecDeque<Keystroke>,
 1166    task: Option<Shared<Task<()>>>,
 1167}
 1168
 1169/// Collects everything project-related for a certain window opened.
 1170/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1171///
 1172/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1173/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1174/// that can be used to register a global action to be triggered from any place in the window.
 1175pub struct Workspace {
 1176    weak_self: WeakEntity<Self>,
 1177    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1178    zoomed: Option<AnyWeakView>,
 1179    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1180    zoomed_position: Option<DockPosition>,
 1181    center: PaneGroup,
 1182    left_dock: Entity<Dock>,
 1183    bottom_dock: Entity<Dock>,
 1184    right_dock: Entity<Dock>,
 1185    panes: Vec<Entity<Pane>>,
 1186    active_worktree_override: Option<WorktreeId>,
 1187    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1188    active_pane: Entity<Pane>,
 1189    last_active_center_pane: Option<WeakEntity<Pane>>,
 1190    last_active_view_id: Option<proto::ViewId>,
 1191    status_bar: Entity<StatusBar>,
 1192    modal_layer: Entity<ModalLayer>,
 1193    toast_layer: Entity<ToastLayer>,
 1194    titlebar_item: Option<AnyView>,
 1195    notifications: Notifications,
 1196    suppressed_notifications: HashSet<NotificationId>,
 1197    project: Entity<Project>,
 1198    follower_states: HashMap<CollaboratorId, FollowerState>,
 1199    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1200    window_edited: bool,
 1201    last_window_title: Option<String>,
 1202    dirty_items: HashMap<EntityId, Subscription>,
 1203    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1204    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1205    database_id: Option<WorkspaceId>,
 1206    app_state: Arc<AppState>,
 1207    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1208    _subscriptions: Vec<Subscription>,
 1209    _apply_leader_updates: Task<Result<()>>,
 1210    _observe_current_user: Task<Result<()>>,
 1211    _schedule_serialize_workspace: Option<Task<()>>,
 1212    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1213    pane_history_timestamp: Arc<AtomicUsize>,
 1214    bounds: Bounds<Pixels>,
 1215    pub centered_layout: bool,
 1216    bounds_save_task_queued: Option<Task<()>>,
 1217    on_prompt_for_new_path: Option<PromptForNewPath>,
 1218    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1219    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1220    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1221    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1222    _items_serializer: Task<Result<()>>,
 1223    session_id: Option<String>,
 1224    scheduled_tasks: Vec<Task<()>>,
 1225    last_open_dock_positions: Vec<DockPosition>,
 1226    removing: bool,
 1227    utility_panes: UtilityPaneState,
 1228}
 1229
 1230impl EventEmitter<Event> for Workspace {}
 1231
 1232#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1233pub struct ViewId {
 1234    pub creator: CollaboratorId,
 1235    pub id: u64,
 1236}
 1237
 1238pub struct FollowerState {
 1239    center_pane: Entity<Pane>,
 1240    dock_pane: Option<Entity<Pane>>,
 1241    active_view_id: Option<ViewId>,
 1242    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1243}
 1244
 1245struct FollowerView {
 1246    view: Box<dyn FollowableItemHandle>,
 1247    location: Option<proto::PanelId>,
 1248}
 1249
 1250impl Workspace {
 1251    pub fn new(
 1252        workspace_id: Option<WorkspaceId>,
 1253        project: Entity<Project>,
 1254        app_state: Arc<AppState>,
 1255        window: &mut Window,
 1256        cx: &mut Context<Self>,
 1257    ) -> Self {
 1258        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1259            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1260                if let TrustedWorktreesEvent::Trusted(..) = e {
 1261                    // Do not persist auto trusted worktrees
 1262                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1263                        worktrees_store.update(cx, |worktrees_store, cx| {
 1264                            worktrees_store.schedule_serialization(
 1265                                cx,
 1266                                |new_trusted_worktrees, cx| {
 1267                                    let timeout =
 1268                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1269                                    cx.background_spawn(async move {
 1270                                        timeout.await;
 1271                                        persistence::DB
 1272                                            .save_trusted_worktrees(new_trusted_worktrees)
 1273                                            .await
 1274                                            .log_err();
 1275                                    })
 1276                                },
 1277                            )
 1278                        });
 1279                    }
 1280                }
 1281            })
 1282            .detach();
 1283
 1284            cx.observe_global::<SettingsStore>(|_, cx| {
 1285                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1286                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1287                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1288                            trusted_worktrees.auto_trust_all(cx);
 1289                        })
 1290                    }
 1291                }
 1292            })
 1293            .detach();
 1294        }
 1295
 1296        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1297            match event {
 1298                project::Event::RemoteIdChanged(_) => {
 1299                    this.update_window_title(window, cx);
 1300                }
 1301
 1302                project::Event::CollaboratorLeft(peer_id) => {
 1303                    this.collaborator_left(*peer_id, window, cx);
 1304                }
 1305
 1306                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(..) => {
 1307                    this.update_window_title(window, cx);
 1308                    this.serialize_workspace(window, cx);
 1309                    this.update_history(cx);
 1310                }
 1311
 1312                project::Event::WorktreeUpdatedEntries(..) => {
 1313                    this.update_window_title(window, cx);
 1314                    this.serialize_workspace(window, cx);
 1315                }
 1316
 1317                project::Event::DisconnectedFromHost => {
 1318                    this.update_window_edited(window, cx);
 1319                    let leaders_to_unfollow =
 1320                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1321                    for leader_id in leaders_to_unfollow {
 1322                        this.unfollow(leader_id, window, cx);
 1323                    }
 1324                }
 1325
 1326                project::Event::DisconnectedFromRemote {
 1327                    server_not_running: _,
 1328                } => {
 1329                    this.update_window_edited(window, cx);
 1330                }
 1331
 1332                project::Event::Closed => {
 1333                    window.remove_window();
 1334                }
 1335
 1336                project::Event::DeletedEntry(_, entry_id) => {
 1337                    for pane in this.panes.iter() {
 1338                        pane.update(cx, |pane, cx| {
 1339                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1340                        });
 1341                    }
 1342                }
 1343
 1344                project::Event::Toast {
 1345                    notification_id,
 1346                    message,
 1347                } => this.show_notification(
 1348                    NotificationId::named(notification_id.clone()),
 1349                    cx,
 1350                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1351                ),
 1352
 1353                project::Event::HideToast { notification_id } => {
 1354                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1355                }
 1356
 1357                project::Event::LanguageServerPrompt(request) => {
 1358                    struct LanguageServerPrompt;
 1359
 1360                    let mut hasher = DefaultHasher::new();
 1361                    request.lsp_name.as_str().hash(&mut hasher);
 1362                    let id = hasher.finish();
 1363
 1364                    this.show_notification(
 1365                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1366                        cx,
 1367                        |cx| {
 1368                            cx.new(|cx| {
 1369                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1370                            })
 1371                        },
 1372                    );
 1373                }
 1374
 1375                project::Event::AgentLocationChanged => {
 1376                    this.handle_agent_location_changed(window, cx)
 1377                }
 1378
 1379                _ => {}
 1380            }
 1381            cx.notify()
 1382        })
 1383        .detach();
 1384
 1385        cx.subscribe_in(
 1386            &project.read(cx).breakpoint_store(),
 1387            window,
 1388            |workspace, _, event, window, cx| match event {
 1389                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1390                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1391                    workspace.serialize_workspace(window, cx);
 1392                }
 1393                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1394            },
 1395        )
 1396        .detach();
 1397        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1398            cx.subscribe_in(
 1399                &toolchain_store,
 1400                window,
 1401                |workspace, _, event, window, cx| match event {
 1402                    ToolchainStoreEvent::CustomToolchainsModified => {
 1403                        workspace.serialize_workspace(window, cx);
 1404                    }
 1405                    _ => {}
 1406                },
 1407            )
 1408            .detach();
 1409        }
 1410
 1411        cx.on_focus_lost(window, |this, window, cx| {
 1412            let focus_handle = this.focus_handle(cx);
 1413            window.focus(&focus_handle, cx);
 1414        })
 1415        .detach();
 1416
 1417        let weak_handle = cx.entity().downgrade();
 1418        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1419
 1420        let center_pane = cx.new(|cx| {
 1421            let mut center_pane = Pane::new(
 1422                weak_handle.clone(),
 1423                project.clone(),
 1424                pane_history_timestamp.clone(),
 1425                None,
 1426                NewFile.boxed_clone(),
 1427                true,
 1428                window,
 1429                cx,
 1430            );
 1431            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1432            center_pane
 1433        });
 1434        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1435            .detach();
 1436
 1437        window.focus(&center_pane.focus_handle(cx), cx);
 1438
 1439        cx.emit(Event::PaneAdded(center_pane.clone()));
 1440
 1441        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1442        app_state.workspace_store.update(cx, |store, _| {
 1443            store.workspaces.insert(window_handle);
 1444        });
 1445
 1446        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1447        let mut connection_status = app_state.client.status();
 1448        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1449            current_user.next().await;
 1450            connection_status.next().await;
 1451            let mut stream =
 1452                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1453
 1454            while stream.recv().await.is_some() {
 1455                this.update(cx, |_, cx| cx.notify())?;
 1456            }
 1457            anyhow::Ok(())
 1458        });
 1459
 1460        // All leader updates are enqueued and then processed in a single task, so
 1461        // that each asynchronous operation can be run in order.
 1462        let (leader_updates_tx, mut leader_updates_rx) =
 1463            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1464        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1465            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1466                Self::process_leader_update(&this, leader_id, update, cx)
 1467                    .await
 1468                    .log_err();
 1469            }
 1470
 1471            Ok(())
 1472        });
 1473
 1474        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1475        let modal_layer = cx.new(|_| ModalLayer::new());
 1476        let toast_layer = cx.new(|_| ToastLayer::new());
 1477        cx.subscribe(
 1478            &modal_layer,
 1479            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1480                cx.emit(Event::ModalOpened);
 1481            },
 1482        )
 1483        .detach();
 1484
 1485        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1486        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1487        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1488        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1489        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1490        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1491        let status_bar = cx.new(|cx| {
 1492            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1493            status_bar.add_left_item(left_dock_buttons, window, cx);
 1494            status_bar.add_right_item(right_dock_buttons, window, cx);
 1495            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1496            status_bar
 1497        });
 1498
 1499        let session_id = app_state.session.read(cx).id().to_owned();
 1500
 1501        let mut active_call = None;
 1502        if let Some(call) = ActiveCall::try_global(cx) {
 1503            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1504            active_call = Some((call, subscriptions));
 1505        }
 1506
 1507        let (serializable_items_tx, serializable_items_rx) =
 1508            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1509        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1510            Self::serialize_items(&this, serializable_items_rx, cx).await
 1511        });
 1512
 1513        let subscriptions = vec![
 1514            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1515            cx.observe_window_bounds(window, move |this, window, cx| {
 1516                if this.bounds_save_task_queued.is_some() {
 1517                    return;
 1518                }
 1519                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1520                    cx.background_executor()
 1521                        .timer(Duration::from_millis(100))
 1522                        .await;
 1523                    this.update_in(cx, |this, window, cx| {
 1524                        if let Some(display) = window.display(cx)
 1525                            && let Ok(display_uuid) = display.uuid()
 1526                        {
 1527                            let window_bounds = window.inner_window_bounds();
 1528                            let has_paths = !this.root_paths(cx).is_empty();
 1529                            if !has_paths {
 1530                                cx.background_executor()
 1531                                    .spawn(persistence::write_default_window_bounds(
 1532                                        window_bounds,
 1533                                        display_uuid,
 1534                                    ))
 1535                                    .detach_and_log_err(cx);
 1536                            }
 1537                            if let Some(database_id) = workspace_id {
 1538                                cx.background_executor()
 1539                                    .spawn(DB.set_window_open_status(
 1540                                        database_id,
 1541                                        SerializedWindowBounds(window_bounds),
 1542                                        display_uuid,
 1543                                    ))
 1544                                    .detach_and_log_err(cx);
 1545                            } else {
 1546                                cx.background_executor()
 1547                                    .spawn(persistence::write_default_window_bounds(
 1548                                        window_bounds,
 1549                                        display_uuid,
 1550                                    ))
 1551                                    .detach_and_log_err(cx);
 1552                            }
 1553                        }
 1554                        this.bounds_save_task_queued.take();
 1555                    })
 1556                    .ok();
 1557                }));
 1558                cx.notify();
 1559            }),
 1560            cx.observe_window_appearance(window, |_, window, cx| {
 1561                let window_appearance = window.appearance();
 1562
 1563                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1564
 1565                GlobalTheme::reload_theme(cx);
 1566                GlobalTheme::reload_icon_theme(cx);
 1567            }),
 1568            cx.on_release(move |this, cx| {
 1569                this.app_state.workspace_store.update(cx, move |store, _| {
 1570                    store.workspaces.remove(&window_handle);
 1571                })
 1572            }),
 1573        ];
 1574
 1575        cx.defer_in(window, move |this, window, cx| {
 1576            this.update_window_title(window, cx);
 1577            this.show_initial_notifications(cx);
 1578        });
 1579
 1580        let mut center = PaneGroup::new(center_pane.clone());
 1581        center.set_is_center(true);
 1582        center.mark_positions(cx);
 1583
 1584        Workspace {
 1585            weak_self: weak_handle.clone(),
 1586            zoomed: None,
 1587            zoomed_position: None,
 1588            previous_dock_drag_coordinates: None,
 1589            center,
 1590            panes: vec![center_pane.clone()],
 1591            panes_by_item: Default::default(),
 1592            active_pane: center_pane.clone(),
 1593            last_active_center_pane: Some(center_pane.downgrade()),
 1594            last_active_view_id: None,
 1595            status_bar,
 1596            modal_layer,
 1597            toast_layer,
 1598            titlebar_item: None,
 1599            active_worktree_override: None,
 1600            notifications: Notifications::default(),
 1601            suppressed_notifications: HashSet::default(),
 1602            left_dock,
 1603            bottom_dock,
 1604            right_dock,
 1605            project: project.clone(),
 1606            follower_states: Default::default(),
 1607            last_leaders_by_pane: Default::default(),
 1608            dispatching_keystrokes: Default::default(),
 1609            window_edited: false,
 1610            last_window_title: None,
 1611            dirty_items: Default::default(),
 1612            active_call,
 1613            database_id: workspace_id,
 1614            app_state,
 1615            _observe_current_user,
 1616            _apply_leader_updates,
 1617            _schedule_serialize_workspace: None,
 1618            _schedule_serialize_ssh_paths: None,
 1619            leader_updates_tx,
 1620            _subscriptions: subscriptions,
 1621            pane_history_timestamp,
 1622            workspace_actions: Default::default(),
 1623            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1624            bounds: Default::default(),
 1625            centered_layout: false,
 1626            bounds_save_task_queued: None,
 1627            on_prompt_for_new_path: None,
 1628            on_prompt_for_open_path: None,
 1629            terminal_provider: None,
 1630            debugger_provider: None,
 1631            serializable_items_tx,
 1632            _items_serializer,
 1633            session_id: Some(session_id),
 1634
 1635            scheduled_tasks: Vec::new(),
 1636            last_open_dock_positions: Vec::new(),
 1637            removing: false,
 1638            utility_panes: UtilityPaneState::default(),
 1639        }
 1640    }
 1641
 1642    pub fn new_local(
 1643        abs_paths: Vec<PathBuf>,
 1644        app_state: Arc<AppState>,
 1645        requesting_window: Option<WindowHandle<Workspace>>,
 1646        env: Option<HashMap<String, String>>,
 1647        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1648        cx: &mut App,
 1649    ) -> Task<
 1650        anyhow::Result<(
 1651            WindowHandle<Workspace>,
 1652            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1653        )>,
 1654    > {
 1655        let project_handle = Project::local(
 1656            app_state.client.clone(),
 1657            app_state.node_runtime.clone(),
 1658            app_state.user_store.clone(),
 1659            app_state.languages.clone(),
 1660            app_state.fs.clone(),
 1661            env,
 1662            Default::default(),
 1663            cx,
 1664        );
 1665
 1666        cx.spawn(async move |cx| {
 1667            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1668            for path in abs_paths.into_iter() {
 1669                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1670                    paths_to_open.push(canonical)
 1671                } else {
 1672                    paths_to_open.push(path)
 1673                }
 1674            }
 1675
 1676            let serialized_workspace =
 1677                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1678
 1679            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1680                paths_to_open = paths.ordered_paths().cloned().collect();
 1681                if !paths.is_lexicographically_ordered() {
 1682                    project_handle.update(cx, |project, cx| {
 1683                        project.set_worktrees_reordered(true, cx);
 1684                    });
 1685                }
 1686            }
 1687
 1688            // Get project paths for all of the abs_paths
 1689            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1690                Vec::with_capacity(paths_to_open.len());
 1691
 1692            for path in paths_to_open.into_iter() {
 1693                if let Some((_, project_entry)) = cx
 1694                    .update(|cx| {
 1695                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1696                    })
 1697                    .await
 1698                    .log_err()
 1699                {
 1700                    project_paths.push((path, Some(project_entry)));
 1701                } else {
 1702                    project_paths.push((path, None));
 1703                }
 1704            }
 1705
 1706            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1707                serialized_workspace.id
 1708            } else {
 1709                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1710            };
 1711
 1712            let toolchains = DB.toolchains(workspace_id).await?;
 1713
 1714            for (toolchain, worktree_path, path) in toolchains {
 1715                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1716                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1717                    this.find_worktree(&worktree_path, cx)
 1718                        .and_then(|(worktree, rel_path)| {
 1719                            if rel_path.is_empty() {
 1720                                Some(worktree.read(cx).id())
 1721                            } else {
 1722                                None
 1723                            }
 1724                        })
 1725                }) else {
 1726                    // We did not find a worktree with a given path, but that's whatever.
 1727                    continue;
 1728                };
 1729                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1730                    continue;
 1731                }
 1732
 1733                project_handle
 1734                    .update(cx, |this, cx| {
 1735                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1736                    })
 1737                    .await;
 1738            }
 1739            if let Some(workspace) = serialized_workspace.as_ref() {
 1740                project_handle.update(cx, |this, cx| {
 1741                    for (scope, toolchains) in &workspace.user_toolchains {
 1742                        for toolchain in toolchains {
 1743                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1744                        }
 1745                    }
 1746                });
 1747            }
 1748
 1749            let window = if let Some(window) = requesting_window {
 1750                let centered_layout = serialized_workspace
 1751                    .as_ref()
 1752                    .map(|w| w.centered_layout)
 1753                    .unwrap_or(false);
 1754
 1755                cx.update_window(window.into(), |_, window, cx| {
 1756                    window.replace_root(cx, |window, cx| {
 1757                        let mut workspace = Workspace::new(
 1758                            Some(workspace_id),
 1759                            project_handle.clone(),
 1760                            app_state.clone(),
 1761                            window,
 1762                            cx,
 1763                        );
 1764
 1765                        workspace.centered_layout = centered_layout;
 1766
 1767                        // Call init callback to add items before window renders
 1768                        if let Some(init) = init {
 1769                            init(&mut workspace, window, cx);
 1770                        }
 1771
 1772                        workspace
 1773                    });
 1774                })?;
 1775                window
 1776            } else {
 1777                let window_bounds_override = window_bounds_env_override();
 1778
 1779                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1780                    (Some(WindowBounds::Windowed(bounds)), None)
 1781                } else if let Some(workspace) = serialized_workspace.as_ref()
 1782                    && let Some(display) = workspace.display
 1783                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1784                {
 1785                    // Reopening an existing workspace - restore its saved bounds
 1786                    (Some(bounds.0), Some(display))
 1787                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1788                    // New or empty workspace - use the last known window bounds
 1789                    (Some(bounds), Some(display))
 1790                } else {
 1791                    // New window - let GPUI's default_bounds() handle cascading
 1792                    (None, None)
 1793                };
 1794
 1795                // Use the serialized workspace to construct the new window
 1796                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1797                options.window_bounds = window_bounds;
 1798                let centered_layout = serialized_workspace
 1799                    .as_ref()
 1800                    .map(|w| w.centered_layout)
 1801                    .unwrap_or(false);
 1802                cx.open_window(options, {
 1803                    let app_state = app_state.clone();
 1804                    let project_handle = project_handle.clone();
 1805                    move |window, cx| {
 1806                        cx.new(|cx| {
 1807                            let mut workspace = Workspace::new(
 1808                                Some(workspace_id),
 1809                                project_handle,
 1810                                app_state,
 1811                                window,
 1812                                cx,
 1813                            );
 1814                            workspace.centered_layout = centered_layout;
 1815
 1816                            // Call init callback to add items before window renders
 1817                            if let Some(init) = init {
 1818                                init(&mut workspace, window, cx);
 1819                            }
 1820
 1821                            workspace
 1822                        })
 1823                    }
 1824                })?
 1825            };
 1826
 1827            notify_if_database_failed(window, cx);
 1828            let opened_items = window
 1829                .update(cx, |_workspace, window, cx| {
 1830                    open_items(serialized_workspace, project_paths, window, cx)
 1831                })?
 1832                .await
 1833                .unwrap_or_default();
 1834
 1835            window
 1836                .update(cx, |workspace, window, cx| {
 1837                    window.activate_window();
 1838                    workspace.update_history(cx);
 1839                })
 1840                .log_err();
 1841            Ok((window, opened_items))
 1842        })
 1843    }
 1844
 1845    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1846        self.weak_self.clone()
 1847    }
 1848
 1849    pub fn left_dock(&self) -> &Entity<Dock> {
 1850        &self.left_dock
 1851    }
 1852
 1853    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1854        &self.bottom_dock
 1855    }
 1856
 1857    pub fn set_bottom_dock_layout(
 1858        &mut self,
 1859        layout: BottomDockLayout,
 1860        window: &mut Window,
 1861        cx: &mut Context<Self>,
 1862    ) {
 1863        let fs = self.project().read(cx).fs();
 1864        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1865            content.workspace.bottom_dock_layout = Some(layout);
 1866        });
 1867
 1868        cx.notify();
 1869        self.serialize_workspace(window, cx);
 1870    }
 1871
 1872    pub fn right_dock(&self) -> &Entity<Dock> {
 1873        &self.right_dock
 1874    }
 1875
 1876    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1877        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1878    }
 1879
 1880    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1881        match position {
 1882            DockPosition::Left => &self.left_dock,
 1883            DockPosition::Bottom => &self.bottom_dock,
 1884            DockPosition::Right => &self.right_dock,
 1885        }
 1886    }
 1887
 1888    pub fn is_edited(&self) -> bool {
 1889        self.window_edited
 1890    }
 1891
 1892    pub fn add_panel<T: Panel>(
 1893        &mut self,
 1894        panel: Entity<T>,
 1895        window: &mut Window,
 1896        cx: &mut Context<Self>,
 1897    ) {
 1898        let focus_handle = panel.panel_focus_handle(cx);
 1899        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1900            .detach();
 1901
 1902        let dock_position = panel.position(window, cx);
 1903        let dock = self.dock_at_position(dock_position);
 1904
 1905        dock.update(cx, |dock, cx| {
 1906            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1907        });
 1908    }
 1909
 1910    pub fn remove_panel<T: Panel>(
 1911        &mut self,
 1912        panel: &Entity<T>,
 1913        window: &mut Window,
 1914        cx: &mut Context<Self>,
 1915    ) {
 1916        let mut found_in_dock = None;
 1917        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1918            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1919
 1920            if found {
 1921                found_in_dock = Some(dock.clone());
 1922            }
 1923        }
 1924        if let Some(found_in_dock) = found_in_dock {
 1925            let position = found_in_dock.read(cx).position();
 1926            let slot = utility_slot_for_dock_position(position);
 1927            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1928        }
 1929    }
 1930
 1931    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1932        &self.status_bar
 1933    }
 1934
 1935    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1936        StatusBarSettings::get_global(cx).show
 1937    }
 1938
 1939    pub fn app_state(&self) -> &Arc<AppState> {
 1940        &self.app_state
 1941    }
 1942
 1943    pub fn user_store(&self) -> &Entity<UserStore> {
 1944        &self.app_state.user_store
 1945    }
 1946
 1947    pub fn project(&self) -> &Entity<Project> {
 1948        &self.project
 1949    }
 1950
 1951    pub fn path_style(&self, cx: &App) -> PathStyle {
 1952        self.project.read(cx).path_style(cx)
 1953    }
 1954
 1955    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1956        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1957
 1958        for pane_handle in &self.panes {
 1959            let pane = pane_handle.read(cx);
 1960
 1961            for entry in pane.activation_history() {
 1962                history.insert(
 1963                    entry.entity_id,
 1964                    history
 1965                        .get(&entry.entity_id)
 1966                        .cloned()
 1967                        .unwrap_or(0)
 1968                        .max(entry.timestamp),
 1969                );
 1970            }
 1971        }
 1972
 1973        history
 1974    }
 1975
 1976    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1977        let mut recent_item: Option<Entity<T>> = None;
 1978        let mut recent_timestamp = 0;
 1979        for pane_handle in &self.panes {
 1980            let pane = pane_handle.read(cx);
 1981            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1982                pane.items().map(|item| (item.item_id(), item)).collect();
 1983            for entry in pane.activation_history() {
 1984                if entry.timestamp > recent_timestamp
 1985                    && let Some(&item) = item_map.get(&entry.entity_id)
 1986                    && let Some(typed_item) = item.act_as::<T>(cx)
 1987                {
 1988                    recent_timestamp = entry.timestamp;
 1989                    recent_item = Some(typed_item);
 1990                }
 1991            }
 1992        }
 1993        recent_item
 1994    }
 1995
 1996    pub fn recent_navigation_history_iter(
 1997        &self,
 1998        cx: &App,
 1999    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2000        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2001        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2002
 2003        for pane in &self.panes {
 2004            let pane = pane.read(cx);
 2005
 2006            pane.nav_history()
 2007                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2008                    if let Some(fs_path) = &fs_path {
 2009                        abs_paths_opened
 2010                            .entry(fs_path.clone())
 2011                            .or_default()
 2012                            .insert(project_path.clone());
 2013                    }
 2014                    let timestamp = entry.timestamp;
 2015                    match history.entry(project_path) {
 2016                        hash_map::Entry::Occupied(mut entry) => {
 2017                            let (_, old_timestamp) = entry.get();
 2018                            if &timestamp > old_timestamp {
 2019                                entry.insert((fs_path, timestamp));
 2020                            }
 2021                        }
 2022                        hash_map::Entry::Vacant(entry) => {
 2023                            entry.insert((fs_path, timestamp));
 2024                        }
 2025                    }
 2026                });
 2027
 2028            if let Some(item) = pane.active_item()
 2029                && let Some(project_path) = item.project_path(cx)
 2030            {
 2031                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2032
 2033                if let Some(fs_path) = &fs_path {
 2034                    abs_paths_opened
 2035                        .entry(fs_path.clone())
 2036                        .or_default()
 2037                        .insert(project_path.clone());
 2038                }
 2039
 2040                history.insert(project_path, (fs_path, std::usize::MAX));
 2041            }
 2042        }
 2043
 2044        history
 2045            .into_iter()
 2046            .sorted_by_key(|(_, (_, order))| *order)
 2047            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2048            .rev()
 2049            .filter(move |(history_path, abs_path)| {
 2050                let latest_project_path_opened = abs_path
 2051                    .as_ref()
 2052                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2053                    .and_then(|project_paths| {
 2054                        project_paths
 2055                            .iter()
 2056                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2057                    });
 2058
 2059                latest_project_path_opened.is_none_or(|path| path == history_path)
 2060            })
 2061    }
 2062
 2063    pub fn recent_navigation_history(
 2064        &self,
 2065        limit: Option<usize>,
 2066        cx: &App,
 2067    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2068        self.recent_navigation_history_iter(cx)
 2069            .take(limit.unwrap_or(usize::MAX))
 2070            .collect()
 2071    }
 2072
 2073    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2074        for pane in &self.panes {
 2075            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2076        }
 2077    }
 2078
 2079    fn navigate_history(
 2080        &mut self,
 2081        pane: WeakEntity<Pane>,
 2082        mode: NavigationMode,
 2083        window: &mut Window,
 2084        cx: &mut Context<Workspace>,
 2085    ) -> Task<Result<()>> {
 2086        self.navigate_history_impl(pane, mode, window, |history, cx| history.pop(mode, cx), cx)
 2087    }
 2088
 2089    fn navigate_tag_history(
 2090        &mut self,
 2091        pane: WeakEntity<Pane>,
 2092        mode: TagNavigationMode,
 2093        window: &mut Window,
 2094        cx: &mut Context<Workspace>,
 2095    ) -> Task<Result<()>> {
 2096        self.navigate_history_impl(
 2097            pane,
 2098            NavigationMode::Normal,
 2099            window,
 2100            |history, _cx| history.pop_tag(mode),
 2101            cx,
 2102        )
 2103    }
 2104
 2105    fn navigate_history_impl(
 2106        &mut self,
 2107        pane: WeakEntity<Pane>,
 2108        mode: NavigationMode,
 2109        window: &mut Window,
 2110        mut cb: impl FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2111        cx: &mut Context<Workspace>,
 2112    ) -> Task<Result<()>> {
 2113        let to_load = if let Some(pane) = pane.upgrade() {
 2114            pane.update(cx, |pane, cx| {
 2115                window.focus(&pane.focus_handle(cx), cx);
 2116                loop {
 2117                    // Retrieve the weak item handle from the history.
 2118                    let entry = cb(pane.nav_history_mut(), cx)?;
 2119
 2120                    // If the item is still present in this pane, then activate it.
 2121                    if let Some(index) = entry
 2122                        .item
 2123                        .upgrade()
 2124                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2125                    {
 2126                        let prev_active_item_index = pane.active_item_index();
 2127                        pane.nav_history_mut().set_mode(mode);
 2128                        pane.activate_item(index, true, true, window, cx);
 2129                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2130
 2131                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2132                        if let Some(data) = entry.data {
 2133                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2134                        }
 2135
 2136                        if navigated {
 2137                            break None;
 2138                        }
 2139                    } else {
 2140                        // If the item is no longer present in this pane, then retrieve its
 2141                        // path info in order to reopen it.
 2142                        break pane
 2143                            .nav_history()
 2144                            .path_for_item(entry.item.id())
 2145                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2146                    }
 2147                }
 2148            })
 2149        } else {
 2150            None
 2151        };
 2152
 2153        if let Some((project_path, abs_path, entry)) = to_load {
 2154            // If the item was no longer present, then load it again from its previous path, first try the local path
 2155            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2156
 2157            cx.spawn_in(window, async move  |workspace, cx| {
 2158                let open_by_project_path = open_by_project_path.await;
 2159                let mut navigated = false;
 2160                match open_by_project_path
 2161                    .with_context(|| format!("Navigating to {project_path:?}"))
 2162                {
 2163                    Ok((project_entry_id, build_item)) => {
 2164                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2165                            pane.nav_history_mut().set_mode(mode);
 2166                            pane.active_item().map(|p| p.item_id())
 2167                        })?;
 2168
 2169                        pane.update_in(cx, |pane, window, cx| {
 2170                            let item = pane.open_item(
 2171                                project_entry_id,
 2172                                project_path,
 2173                                true,
 2174                                entry.is_preview,
 2175                                true,
 2176                                None,
 2177                                window, cx,
 2178                                build_item,
 2179                            );
 2180                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2181                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2182                            if let Some(data) = entry.data {
 2183                                navigated |= item.navigate(data, window, cx);
 2184                            }
 2185                        })?;
 2186                    }
 2187                    Err(open_by_project_path_e) => {
 2188                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2189                        // and its worktree is now dropped
 2190                        if let Some(abs_path) = abs_path {
 2191                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2192                                pane.nav_history_mut().set_mode(mode);
 2193                                pane.active_item().map(|p| p.item_id())
 2194                            })?;
 2195                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2196                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2197                            })?;
 2198                            match open_by_abs_path
 2199                                .await
 2200                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2201                            {
 2202                                Ok(item) => {
 2203                                    pane.update_in(cx, |pane, window, cx| {
 2204                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2205                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2206                                        if let Some(data) = entry.data {
 2207                                            navigated |= item.navigate(data, window, cx);
 2208                                        }
 2209                                    })?;
 2210                                }
 2211                                Err(open_by_abs_path_e) => {
 2212                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2213                                }
 2214                            }
 2215                        }
 2216                    }
 2217                }
 2218
 2219                if !navigated {
 2220                    workspace
 2221                        .update_in(cx, |workspace, window, cx| {
 2222                            Self::navigate_history(workspace, pane, mode, window, cx)
 2223                        })?
 2224                        .await?;
 2225                }
 2226
 2227                Ok(())
 2228            })
 2229        } else {
 2230            Task::ready(Ok(()))
 2231        }
 2232    }
 2233
 2234    pub fn go_back(
 2235        &mut self,
 2236        pane: WeakEntity<Pane>,
 2237        window: &mut Window,
 2238        cx: &mut Context<Workspace>,
 2239    ) -> Task<Result<()>> {
 2240        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2241    }
 2242
 2243    pub fn go_forward(
 2244        &mut self,
 2245        pane: WeakEntity<Pane>,
 2246        window: &mut Window,
 2247        cx: &mut Context<Workspace>,
 2248    ) -> Task<Result<()>> {
 2249        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2250    }
 2251
 2252    pub fn reopen_closed_item(
 2253        &mut self,
 2254        window: &mut Window,
 2255        cx: &mut Context<Workspace>,
 2256    ) -> Task<Result<()>> {
 2257        self.navigate_history(
 2258            self.active_pane().downgrade(),
 2259            NavigationMode::ReopeningClosedItem,
 2260            window,
 2261            cx,
 2262        )
 2263    }
 2264
 2265    pub fn client(&self) -> &Arc<Client> {
 2266        &self.app_state.client
 2267    }
 2268
 2269    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2270        self.titlebar_item = Some(item);
 2271        cx.notify();
 2272    }
 2273
 2274    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2275        self.on_prompt_for_new_path = Some(prompt)
 2276    }
 2277
 2278    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2279        self.on_prompt_for_open_path = Some(prompt)
 2280    }
 2281
 2282    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2283        self.terminal_provider = Some(Box::new(provider));
 2284    }
 2285
 2286    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2287        self.debugger_provider = Some(Arc::new(provider));
 2288    }
 2289
 2290    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2291        self.debugger_provider.clone()
 2292    }
 2293
 2294    pub fn prompt_for_open_path(
 2295        &mut self,
 2296        path_prompt_options: PathPromptOptions,
 2297        lister: DirectoryLister,
 2298        window: &mut Window,
 2299        cx: &mut Context<Self>,
 2300    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2301        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2302            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2303            let rx = prompt(self, lister, window, cx);
 2304            self.on_prompt_for_open_path = Some(prompt);
 2305            rx
 2306        } else {
 2307            let (tx, rx) = oneshot::channel();
 2308            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2309
 2310            cx.spawn_in(window, async move |workspace, cx| {
 2311                let Ok(result) = abs_path.await else {
 2312                    return Ok(());
 2313                };
 2314
 2315                match result {
 2316                    Ok(result) => {
 2317                        tx.send(result).ok();
 2318                    }
 2319                    Err(err) => {
 2320                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2321                            workspace.show_portal_error(err.to_string(), cx);
 2322                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2323                            let rx = prompt(workspace, lister, window, cx);
 2324                            workspace.on_prompt_for_open_path = Some(prompt);
 2325                            rx
 2326                        })?;
 2327                        if let Ok(path) = rx.await {
 2328                            tx.send(path).ok();
 2329                        }
 2330                    }
 2331                };
 2332                anyhow::Ok(())
 2333            })
 2334            .detach();
 2335
 2336            rx
 2337        }
 2338    }
 2339
 2340    pub fn prompt_for_new_path(
 2341        &mut self,
 2342        lister: DirectoryLister,
 2343        suggested_name: Option<String>,
 2344        window: &mut Window,
 2345        cx: &mut Context<Self>,
 2346    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2347        if self.project.read(cx).is_via_collab()
 2348            || self.project.read(cx).is_via_remote_server()
 2349            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2350        {
 2351            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2352            let rx = prompt(self, lister, window, cx);
 2353            self.on_prompt_for_new_path = Some(prompt);
 2354            return rx;
 2355        }
 2356
 2357        let (tx, rx) = oneshot::channel();
 2358        cx.spawn_in(window, async move |workspace, cx| {
 2359            let abs_path = workspace.update(cx, |workspace, cx| {
 2360                let relative_to = workspace
 2361                    .most_recent_active_path(cx)
 2362                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2363                    .or_else(|| {
 2364                        let project = workspace.project.read(cx);
 2365                        project.visible_worktrees(cx).find_map(|worktree| {
 2366                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2367                        })
 2368                    })
 2369                    .or_else(std::env::home_dir)
 2370                    .unwrap_or_else(|| PathBuf::from(""));
 2371                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2372            })?;
 2373            let abs_path = match abs_path.await? {
 2374                Ok(path) => path,
 2375                Err(err) => {
 2376                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2377                        workspace.show_portal_error(err.to_string(), cx);
 2378
 2379                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2380                        let rx = prompt(workspace, lister, window, cx);
 2381                        workspace.on_prompt_for_new_path = Some(prompt);
 2382                        rx
 2383                    })?;
 2384                    if let Ok(path) = rx.await {
 2385                        tx.send(path).ok();
 2386                    }
 2387                    return anyhow::Ok(());
 2388                }
 2389            };
 2390
 2391            tx.send(abs_path.map(|path| vec![path])).ok();
 2392            anyhow::Ok(())
 2393        })
 2394        .detach();
 2395
 2396        rx
 2397    }
 2398
 2399    pub fn titlebar_item(&self) -> Option<AnyView> {
 2400        self.titlebar_item.clone()
 2401    }
 2402
 2403    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2404    /// When set, git-related operations should use this worktree instead of deriving
 2405    /// the active worktree from the focused file.
 2406    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2407        self.active_worktree_override
 2408    }
 2409
 2410    pub fn set_active_worktree_override(
 2411        &mut self,
 2412        worktree_id: Option<WorktreeId>,
 2413        cx: &mut Context<Self>,
 2414    ) {
 2415        self.active_worktree_override = worktree_id;
 2416        cx.notify();
 2417    }
 2418
 2419    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2420        self.active_worktree_override = None;
 2421        cx.notify();
 2422    }
 2423
 2424    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2425    ///
 2426    /// If the given workspace has a local project, then it will be passed
 2427    /// to the callback. Otherwise, a new empty window will be created.
 2428    pub fn with_local_workspace<T, F>(
 2429        &mut self,
 2430        window: &mut Window,
 2431        cx: &mut Context<Self>,
 2432        callback: F,
 2433    ) -> Task<Result<T>>
 2434    where
 2435        T: 'static,
 2436        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2437    {
 2438        if self.project.read(cx).is_local() {
 2439            Task::ready(Ok(callback(self, window, cx)))
 2440        } else {
 2441            let env = self.project.read(cx).cli_environment(cx);
 2442            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2443            cx.spawn_in(window, async move |_vh, cx| {
 2444                let (workspace, _) = task.await?;
 2445                workspace.update(cx, callback)
 2446            })
 2447        }
 2448    }
 2449
 2450    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2451    ///
 2452    /// If the given workspace has a local project, then it will be passed
 2453    /// to the callback. Otherwise, a new empty window will be created.
 2454    pub fn with_local_or_wsl_workspace<T, F>(
 2455        &mut self,
 2456        window: &mut Window,
 2457        cx: &mut Context<Self>,
 2458        callback: F,
 2459    ) -> Task<Result<T>>
 2460    where
 2461        T: 'static,
 2462        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2463    {
 2464        let project = self.project.read(cx);
 2465        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2466            Task::ready(Ok(callback(self, window, cx)))
 2467        } else {
 2468            let env = self.project.read(cx).cli_environment(cx);
 2469            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2470            cx.spawn_in(window, async move |_vh, cx| {
 2471                let (workspace, _) = task.await?;
 2472                workspace.update(cx, callback)
 2473            })
 2474        }
 2475    }
 2476
 2477    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2478        self.project.read(cx).worktrees(cx)
 2479    }
 2480
 2481    pub fn visible_worktrees<'a>(
 2482        &self,
 2483        cx: &'a App,
 2484    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2485        self.project.read(cx).visible_worktrees(cx)
 2486    }
 2487
 2488    #[cfg(any(test, feature = "test-support"))]
 2489    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2490        let futures = self
 2491            .worktrees(cx)
 2492            .filter_map(|worktree| worktree.read(cx).as_local())
 2493            .map(|worktree| worktree.scan_complete())
 2494            .collect::<Vec<_>>();
 2495        async move {
 2496            for future in futures {
 2497                future.await;
 2498            }
 2499        }
 2500    }
 2501
 2502    pub fn close_global(cx: &mut App) {
 2503        cx.defer(|cx| {
 2504            cx.windows().iter().find(|window| {
 2505                window
 2506                    .update(cx, |_, window, _| {
 2507                        if window.is_window_active() {
 2508                            //This can only get called when the window's project connection has been lost
 2509                            //so we don't need to prompt the user for anything and instead just close the window
 2510                            window.remove_window();
 2511                            true
 2512                        } else {
 2513                            false
 2514                        }
 2515                    })
 2516                    .unwrap_or(false)
 2517            });
 2518        });
 2519    }
 2520
 2521    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2522        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2523        cx.spawn_in(window, async move |_, cx| {
 2524            if prepare.await? {
 2525                cx.update(|window, _cx| window.remove_window())?;
 2526            }
 2527            anyhow::Ok(())
 2528        })
 2529        .detach_and_log_err(cx)
 2530    }
 2531
 2532    pub fn move_focused_panel_to_next_position(
 2533        &mut self,
 2534        _: &MoveFocusedPanelToNextPosition,
 2535        window: &mut Window,
 2536        cx: &mut Context<Self>,
 2537    ) {
 2538        let docks = self.all_docks();
 2539        let active_dock = docks
 2540            .into_iter()
 2541            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2542
 2543        if let Some(dock) = active_dock {
 2544            dock.update(cx, |dock, cx| {
 2545                let active_panel = dock
 2546                    .active_panel()
 2547                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2548
 2549                if let Some(panel) = active_panel {
 2550                    panel.move_to_next_position(window, cx);
 2551                }
 2552            })
 2553        }
 2554    }
 2555
 2556    pub fn prepare_to_close(
 2557        &mut self,
 2558        close_intent: CloseIntent,
 2559        window: &mut Window,
 2560        cx: &mut Context<Self>,
 2561    ) -> Task<Result<bool>> {
 2562        let active_call = self.active_call().cloned();
 2563
 2564        cx.spawn_in(window, async move |this, cx| {
 2565            this.update(cx, |this, _| {
 2566                if close_intent == CloseIntent::CloseWindow {
 2567                    this.removing = true;
 2568                }
 2569            })?;
 2570
 2571            let workspace_count = cx.update(|_window, cx| {
 2572                cx.windows()
 2573                    .iter()
 2574                    .filter(|window| window.downcast::<Workspace>().is_some())
 2575                    .count()
 2576            })?;
 2577
 2578            #[cfg(target_os = "macos")]
 2579            let save_last_workspace = false;
 2580
 2581            // On Linux and Windows, closing the last window should restore the last workspace.
 2582            #[cfg(not(target_os = "macos"))]
 2583            let save_last_workspace = {
 2584                let remaining_workspaces = cx.update(|_window, cx| {
 2585                    cx.windows()
 2586                        .iter()
 2587                        .filter_map(|window| window.downcast::<Workspace>())
 2588                        .filter_map(|workspace| {
 2589                            workspace
 2590                                .update(cx, |workspace, _, _| workspace.removing)
 2591                                .ok()
 2592                        })
 2593                        .filter(|removing| !removing)
 2594                        .count()
 2595                })?;
 2596
 2597                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2598            };
 2599
 2600            if let Some(active_call) = active_call
 2601                && workspace_count == 1
 2602                && active_call.read_with(cx, |call, _| call.room().is_some())
 2603            {
 2604                if close_intent == CloseIntent::CloseWindow {
 2605                    let answer = cx.update(|window, cx| {
 2606                        window.prompt(
 2607                            PromptLevel::Warning,
 2608                            "Do you want to leave the current call?",
 2609                            None,
 2610                            &["Close window and hang up", "Cancel"],
 2611                            cx,
 2612                        )
 2613                    })?;
 2614
 2615                    if answer.await.log_err() == Some(1) {
 2616                        return anyhow::Ok(false);
 2617                    } else {
 2618                        active_call
 2619                            .update(cx, |call, cx| call.hang_up(cx))
 2620                            .await
 2621                            .log_err();
 2622                    }
 2623                }
 2624                if close_intent == CloseIntent::ReplaceWindow {
 2625                    _ = active_call.update(cx, |this, cx| {
 2626                        let workspace = cx
 2627                            .windows()
 2628                            .iter()
 2629                            .filter_map(|window| window.downcast::<Workspace>())
 2630                            .next()
 2631                            .unwrap();
 2632                        let project = workspace.read(cx)?.project.clone();
 2633                        if project.read(cx).is_shared() {
 2634                            this.unshare_project(project, cx)?;
 2635                        }
 2636                        Ok::<_, anyhow::Error>(())
 2637                    })?;
 2638                }
 2639            }
 2640
 2641            let save_result = this
 2642                .update_in(cx, |this, window, cx| {
 2643                    this.save_all_internal(SaveIntent::Close, window, cx)
 2644                })?
 2645                .await;
 2646
 2647            // If we're not quitting, but closing, we remove the workspace from
 2648            // the current session.
 2649            if close_intent != CloseIntent::Quit
 2650                && !save_last_workspace
 2651                && save_result.as_ref().is_ok_and(|&res| res)
 2652            {
 2653                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2654                    .await;
 2655            }
 2656
 2657            save_result
 2658        })
 2659    }
 2660
 2661    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2662        self.save_all_internal(
 2663            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2664            window,
 2665            cx,
 2666        )
 2667        .detach_and_log_err(cx);
 2668    }
 2669
 2670    fn send_keystrokes(
 2671        &mut self,
 2672        action: &SendKeystrokes,
 2673        window: &mut Window,
 2674        cx: &mut Context<Self>,
 2675    ) {
 2676        let keystrokes: Vec<Keystroke> = action
 2677            .0
 2678            .split(' ')
 2679            .flat_map(|k| Keystroke::parse(k).log_err())
 2680            .map(|k| {
 2681                cx.keyboard_mapper()
 2682                    .map_key_equivalent(k, true)
 2683                    .inner()
 2684                    .clone()
 2685            })
 2686            .collect();
 2687        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2688    }
 2689
 2690    pub fn send_keystrokes_impl(
 2691        &mut self,
 2692        keystrokes: Vec<Keystroke>,
 2693        window: &mut Window,
 2694        cx: &mut Context<Self>,
 2695    ) -> Shared<Task<()>> {
 2696        let mut state = self.dispatching_keystrokes.borrow_mut();
 2697        if !state.dispatched.insert(keystrokes.clone()) {
 2698            cx.propagate();
 2699            return state.task.clone().unwrap();
 2700        }
 2701
 2702        state.queue.extend(keystrokes);
 2703
 2704        let keystrokes = self.dispatching_keystrokes.clone();
 2705        if state.task.is_none() {
 2706            state.task = Some(
 2707                window
 2708                    .spawn(cx, async move |cx| {
 2709                        // limit to 100 keystrokes to avoid infinite recursion.
 2710                        for _ in 0..100 {
 2711                            let mut state = keystrokes.borrow_mut();
 2712                            let Some(keystroke) = state.queue.pop_front() else {
 2713                                state.dispatched.clear();
 2714                                state.task.take();
 2715                                return;
 2716                            };
 2717                            drop(state);
 2718                            cx.update(|window, cx| {
 2719                                let focused = window.focused(cx);
 2720                                window.dispatch_keystroke(keystroke.clone(), cx);
 2721                                if window.focused(cx) != focused {
 2722                                    // dispatch_keystroke may cause the focus to change.
 2723                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2724                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2725                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2726                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2727                                    // )
 2728                                    window.draw(cx).clear();
 2729                                }
 2730                            })
 2731                            .ok();
 2732                        }
 2733
 2734                        *keystrokes.borrow_mut() = Default::default();
 2735                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2736                    })
 2737                    .shared(),
 2738            );
 2739        }
 2740        state.task.clone().unwrap()
 2741    }
 2742
 2743    fn save_all_internal(
 2744        &mut self,
 2745        mut save_intent: SaveIntent,
 2746        window: &mut Window,
 2747        cx: &mut Context<Self>,
 2748    ) -> Task<Result<bool>> {
 2749        if self.project.read(cx).is_disconnected(cx) {
 2750            return Task::ready(Ok(true));
 2751        }
 2752        let dirty_items = self
 2753            .panes
 2754            .iter()
 2755            .flat_map(|pane| {
 2756                pane.read(cx).items().filter_map(|item| {
 2757                    if item.is_dirty(cx) {
 2758                        item.tab_content_text(0, cx);
 2759                        Some((pane.downgrade(), item.boxed_clone()))
 2760                    } else {
 2761                        None
 2762                    }
 2763                })
 2764            })
 2765            .collect::<Vec<_>>();
 2766
 2767        let project = self.project.clone();
 2768        cx.spawn_in(window, async move |workspace, cx| {
 2769            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2770                let (serialize_tasks, remaining_dirty_items) =
 2771                    workspace.update_in(cx, |workspace, window, cx| {
 2772                        let mut remaining_dirty_items = Vec::new();
 2773                        let mut serialize_tasks = Vec::new();
 2774                        for (pane, item) in dirty_items {
 2775                            if let Some(task) = item
 2776                                .to_serializable_item_handle(cx)
 2777                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2778                            {
 2779                                serialize_tasks.push(task);
 2780                            } else {
 2781                                remaining_dirty_items.push((pane, item));
 2782                            }
 2783                        }
 2784                        (serialize_tasks, remaining_dirty_items)
 2785                    })?;
 2786
 2787                futures::future::try_join_all(serialize_tasks).await?;
 2788
 2789                if remaining_dirty_items.len() > 1 {
 2790                    let answer = workspace.update_in(cx, |_, window, cx| {
 2791                        let detail = Pane::file_names_for_prompt(
 2792                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2793                            cx,
 2794                        );
 2795                        window.prompt(
 2796                            PromptLevel::Warning,
 2797                            "Do you want to save all changes in the following files?",
 2798                            Some(&detail),
 2799                            &["Save all", "Discard all", "Cancel"],
 2800                            cx,
 2801                        )
 2802                    })?;
 2803                    match answer.await.log_err() {
 2804                        Some(0) => save_intent = SaveIntent::SaveAll,
 2805                        Some(1) => save_intent = SaveIntent::Skip,
 2806                        Some(2) => return Ok(false),
 2807                        _ => {}
 2808                    }
 2809                }
 2810
 2811                remaining_dirty_items
 2812            } else {
 2813                dirty_items
 2814            };
 2815
 2816            for (pane, item) in dirty_items {
 2817                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2818                    (
 2819                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2820                        item.project_entry_ids(cx),
 2821                    )
 2822                })?;
 2823                if (singleton || !project_entry_ids.is_empty())
 2824                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2825                {
 2826                    return Ok(false);
 2827                }
 2828            }
 2829            Ok(true)
 2830        })
 2831    }
 2832
 2833    pub fn open_workspace_for_paths(
 2834        &mut self,
 2835        replace_current_window: bool,
 2836        paths: Vec<PathBuf>,
 2837        window: &mut Window,
 2838        cx: &mut Context<Self>,
 2839    ) -> Task<Result<()>> {
 2840        let window_handle = window.window_handle().downcast::<Self>();
 2841        let is_remote = self.project.read(cx).is_via_collab();
 2842        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2843        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2844
 2845        let window_to_replace = if replace_current_window {
 2846            window_handle
 2847        } else if is_remote || has_worktree || has_dirty_items {
 2848            None
 2849        } else {
 2850            window_handle
 2851        };
 2852        let app_state = self.app_state.clone();
 2853
 2854        cx.spawn(async move |_, cx| {
 2855            cx.update(|cx| {
 2856                open_paths(
 2857                    &paths,
 2858                    app_state,
 2859                    OpenOptions {
 2860                        replace_window: window_to_replace,
 2861                        ..Default::default()
 2862                    },
 2863                    cx,
 2864                )
 2865            })
 2866            .await?;
 2867            Ok(())
 2868        })
 2869    }
 2870
 2871    #[allow(clippy::type_complexity)]
 2872    pub fn open_paths(
 2873        &mut self,
 2874        mut abs_paths: Vec<PathBuf>,
 2875        options: OpenOptions,
 2876        pane: Option<WeakEntity<Pane>>,
 2877        window: &mut Window,
 2878        cx: &mut Context<Self>,
 2879    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2880        let fs = self.app_state.fs.clone();
 2881
 2882        let caller_ordered_abs_paths = abs_paths.clone();
 2883
 2884        // Sort the paths to ensure we add worktrees for parents before their children.
 2885        abs_paths.sort_unstable();
 2886        cx.spawn_in(window, async move |this, cx| {
 2887            let mut tasks = Vec::with_capacity(abs_paths.len());
 2888
 2889            for abs_path in &abs_paths {
 2890                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2891                    OpenVisible::All => Some(true),
 2892                    OpenVisible::None => Some(false),
 2893                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2894                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2895                        Some(None) => Some(true),
 2896                        None => None,
 2897                    },
 2898                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2899                        Some(Some(metadata)) => Some(metadata.is_dir),
 2900                        Some(None) => Some(false),
 2901                        None => None,
 2902                    },
 2903                };
 2904                let project_path = match visible {
 2905                    Some(visible) => match this
 2906                        .update(cx, |this, cx| {
 2907                            Workspace::project_path_for_path(
 2908                                this.project.clone(),
 2909                                abs_path,
 2910                                visible,
 2911                                cx,
 2912                            )
 2913                        })
 2914                        .log_err()
 2915                    {
 2916                        Some(project_path) => project_path.await.log_err(),
 2917                        None => None,
 2918                    },
 2919                    None => None,
 2920                };
 2921
 2922                let this = this.clone();
 2923                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2924                let fs = fs.clone();
 2925                let pane = pane.clone();
 2926                let task = cx.spawn(async move |cx| {
 2927                    let (_worktree, project_path) = project_path?;
 2928                    if fs.is_dir(&abs_path).await {
 2929                        // Opening a directory should not race to update the active entry.
 2930                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 2931                        None
 2932                    } else {
 2933                        Some(
 2934                            this.update_in(cx, |this, window, cx| {
 2935                                this.open_path(
 2936                                    project_path,
 2937                                    pane,
 2938                                    options.focus.unwrap_or(true),
 2939                                    window,
 2940                                    cx,
 2941                                )
 2942                            })
 2943                            .ok()?
 2944                            .await,
 2945                        )
 2946                    }
 2947                });
 2948                tasks.push(task);
 2949            }
 2950
 2951            let results = futures::future::join_all(tasks).await;
 2952
 2953            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 2954            let mut winner: Option<(PathBuf, bool)> = None;
 2955            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 2956                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 2957                    if !metadata.is_dir {
 2958                        winner = Some((abs_path, false));
 2959                        break;
 2960                    }
 2961                    if winner.is_none() {
 2962                        winner = Some((abs_path, true));
 2963                    }
 2964                } else if winner.is_none() {
 2965                    winner = Some((abs_path, false));
 2966                }
 2967            }
 2968
 2969            // Compute the winner entry id on the foreground thread and emit once, after all
 2970            // paths finish opening. This avoids races between concurrently-opening paths
 2971            // (directories in particular) and makes the resulting project panel selection
 2972            // deterministic.
 2973            if let Some((winner_abs_path, winner_is_dir)) = winner {
 2974                'emit_winner: {
 2975                    let winner_abs_path: Arc<Path> =
 2976                        SanitizedPath::new(&winner_abs_path).as_path().into();
 2977
 2978                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2979                        OpenVisible::All => true,
 2980                        OpenVisible::None => false,
 2981                        OpenVisible::OnlyFiles => !winner_is_dir,
 2982                        OpenVisible::OnlyDirectories => winner_is_dir,
 2983                    };
 2984
 2985                    let Some(worktree_task) = this
 2986                        .update(cx, |workspace, cx| {
 2987                            workspace.project.update(cx, |project, cx| {
 2988                                project.find_or_create_worktree(
 2989                                    winner_abs_path.as_ref(),
 2990                                    visible,
 2991                                    cx,
 2992                                )
 2993                            })
 2994                        })
 2995                        .ok()
 2996                    else {
 2997                        break 'emit_winner;
 2998                    };
 2999
 3000                    let Ok((worktree, _)) = worktree_task.await else {
 3001                        break 'emit_winner;
 3002                    };
 3003
 3004                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3005                        let worktree = worktree.read(cx);
 3006                        let worktree_abs_path = worktree.abs_path();
 3007                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3008                            worktree.root_entry()
 3009                        } else {
 3010                            winner_abs_path
 3011                                .strip_prefix(worktree_abs_path.as_ref())
 3012                                .ok()
 3013                                .and_then(|relative_path| {
 3014                                    let relative_path =
 3015                                        RelPath::new(relative_path, PathStyle::local())
 3016                                            .log_err()?;
 3017                                    worktree.entry_for_path(&relative_path)
 3018                                })
 3019                        }?;
 3020                        Some(entry.id)
 3021                    }) else {
 3022                        break 'emit_winner;
 3023                    };
 3024
 3025                    this.update(cx, |workspace, cx| {
 3026                        workspace.project.update(cx, |_, cx| {
 3027                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3028                        });
 3029                    })
 3030                    .ok();
 3031                }
 3032            }
 3033
 3034            results
 3035        })
 3036    }
 3037
 3038    pub fn open_resolved_path(
 3039        &mut self,
 3040        path: ResolvedPath,
 3041        window: &mut Window,
 3042        cx: &mut Context<Self>,
 3043    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3044        match path {
 3045            ResolvedPath::ProjectPath { project_path, .. } => {
 3046                self.open_path(project_path, None, true, window, cx)
 3047            }
 3048            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3049                PathBuf::from(path),
 3050                OpenOptions {
 3051                    visible: Some(OpenVisible::None),
 3052                    ..Default::default()
 3053                },
 3054                window,
 3055                cx,
 3056            ),
 3057        }
 3058    }
 3059
 3060    pub fn absolute_path_of_worktree(
 3061        &self,
 3062        worktree_id: WorktreeId,
 3063        cx: &mut Context<Self>,
 3064    ) -> Option<PathBuf> {
 3065        self.project
 3066            .read(cx)
 3067            .worktree_for_id(worktree_id, cx)
 3068            // TODO: use `abs_path` or `root_dir`
 3069            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3070    }
 3071
 3072    fn add_folder_to_project(
 3073        &mut self,
 3074        _: &AddFolderToProject,
 3075        window: &mut Window,
 3076        cx: &mut Context<Self>,
 3077    ) {
 3078        let project = self.project.read(cx);
 3079        if project.is_via_collab() {
 3080            self.show_error(
 3081                &anyhow!("You cannot add folders to someone else's project"),
 3082                cx,
 3083            );
 3084            return;
 3085        }
 3086        let paths = self.prompt_for_open_path(
 3087            PathPromptOptions {
 3088                files: false,
 3089                directories: true,
 3090                multiple: true,
 3091                prompt: None,
 3092            },
 3093            DirectoryLister::Project(self.project.clone()),
 3094            window,
 3095            cx,
 3096        );
 3097        cx.spawn_in(window, async move |this, cx| {
 3098            if let Some(paths) = paths.await.log_err().flatten() {
 3099                let results = this
 3100                    .update_in(cx, |this, window, cx| {
 3101                        this.open_paths(
 3102                            paths,
 3103                            OpenOptions {
 3104                                visible: Some(OpenVisible::All),
 3105                                ..Default::default()
 3106                            },
 3107                            None,
 3108                            window,
 3109                            cx,
 3110                        )
 3111                    })?
 3112                    .await;
 3113                for result in results.into_iter().flatten() {
 3114                    result.log_err();
 3115                }
 3116            }
 3117            anyhow::Ok(())
 3118        })
 3119        .detach_and_log_err(cx);
 3120    }
 3121
 3122    pub fn project_path_for_path(
 3123        project: Entity<Project>,
 3124        abs_path: &Path,
 3125        visible: bool,
 3126        cx: &mut App,
 3127    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3128        let entry = project.update(cx, |project, cx| {
 3129            project.find_or_create_worktree(abs_path, visible, cx)
 3130        });
 3131        cx.spawn(async move |cx| {
 3132            let (worktree, path) = entry.await?;
 3133            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3134            Ok((worktree, ProjectPath { worktree_id, path }))
 3135        })
 3136    }
 3137
 3138    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3139        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3140    }
 3141
 3142    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3143        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3144    }
 3145
 3146    pub fn items_of_type<'a, T: Item>(
 3147        &'a self,
 3148        cx: &'a App,
 3149    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3150        self.panes
 3151            .iter()
 3152            .flat_map(|pane| pane.read(cx).items_of_type())
 3153    }
 3154
 3155    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3156        self.active_pane().read(cx).active_item()
 3157    }
 3158
 3159    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3160        let item = self.active_item(cx)?;
 3161        item.to_any_view().downcast::<I>().ok()
 3162    }
 3163
 3164    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3165        self.active_item(cx).and_then(|item| item.project_path(cx))
 3166    }
 3167
 3168    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3169        self.recent_navigation_history_iter(cx)
 3170            .filter_map(|(path, abs_path)| {
 3171                let worktree = self
 3172                    .project
 3173                    .read(cx)
 3174                    .worktree_for_id(path.worktree_id, cx)?;
 3175                if worktree.read(cx).is_visible() {
 3176                    abs_path
 3177                } else {
 3178                    None
 3179                }
 3180            })
 3181            .next()
 3182    }
 3183
 3184    pub fn save_active_item(
 3185        &mut self,
 3186        save_intent: SaveIntent,
 3187        window: &mut Window,
 3188        cx: &mut App,
 3189    ) -> Task<Result<()>> {
 3190        let project = self.project.clone();
 3191        let pane = self.active_pane();
 3192        let item = pane.read(cx).active_item();
 3193        let pane = pane.downgrade();
 3194
 3195        window.spawn(cx, async move |cx| {
 3196            if let Some(item) = item {
 3197                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3198                    .await
 3199                    .map(|_| ())
 3200            } else {
 3201                Ok(())
 3202            }
 3203        })
 3204    }
 3205
 3206    pub fn close_inactive_items_and_panes(
 3207        &mut self,
 3208        action: &CloseInactiveTabsAndPanes,
 3209        window: &mut Window,
 3210        cx: &mut Context<Self>,
 3211    ) {
 3212        if let Some(task) = self.close_all_internal(
 3213            true,
 3214            action.save_intent.unwrap_or(SaveIntent::Close),
 3215            window,
 3216            cx,
 3217        ) {
 3218            task.detach_and_log_err(cx)
 3219        }
 3220    }
 3221
 3222    pub fn close_all_items_and_panes(
 3223        &mut self,
 3224        action: &CloseAllItemsAndPanes,
 3225        window: &mut Window,
 3226        cx: &mut Context<Self>,
 3227    ) {
 3228        if let Some(task) = self.close_all_internal(
 3229            false,
 3230            action.save_intent.unwrap_or(SaveIntent::Close),
 3231            window,
 3232            cx,
 3233        ) {
 3234            task.detach_and_log_err(cx)
 3235        }
 3236    }
 3237
 3238    fn close_all_internal(
 3239        &mut self,
 3240        retain_active_pane: bool,
 3241        save_intent: SaveIntent,
 3242        window: &mut Window,
 3243        cx: &mut Context<Self>,
 3244    ) -> Option<Task<Result<()>>> {
 3245        let current_pane = self.active_pane();
 3246
 3247        let mut tasks = Vec::new();
 3248
 3249        if retain_active_pane {
 3250            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3251                pane.close_other_items(
 3252                    &CloseOtherItems {
 3253                        save_intent: None,
 3254                        close_pinned: false,
 3255                    },
 3256                    None,
 3257                    window,
 3258                    cx,
 3259                )
 3260            });
 3261
 3262            tasks.push(current_pane_close);
 3263        }
 3264
 3265        for pane in self.panes() {
 3266            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3267                continue;
 3268            }
 3269
 3270            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3271                pane.close_all_items(
 3272                    &CloseAllItems {
 3273                        save_intent: Some(save_intent),
 3274                        close_pinned: false,
 3275                    },
 3276                    window,
 3277                    cx,
 3278                )
 3279            });
 3280
 3281            tasks.push(close_pane_items)
 3282        }
 3283
 3284        if tasks.is_empty() {
 3285            None
 3286        } else {
 3287            Some(cx.spawn_in(window, async move |_, _| {
 3288                for task in tasks {
 3289                    task.await?
 3290                }
 3291                Ok(())
 3292            }))
 3293        }
 3294    }
 3295
 3296    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3297        self.dock_at_position(position).read(cx).is_open()
 3298    }
 3299
 3300    pub fn toggle_dock(
 3301        &mut self,
 3302        dock_side: DockPosition,
 3303        window: &mut Window,
 3304        cx: &mut Context<Self>,
 3305    ) {
 3306        let mut focus_center = false;
 3307        let mut reveal_dock = false;
 3308
 3309        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3310        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3311
 3312        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3313            telemetry::event!(
 3314                "Panel Button Clicked",
 3315                name = panel.persistent_name(),
 3316                toggle_state = !was_visible
 3317            );
 3318        }
 3319        if was_visible {
 3320            self.save_open_dock_positions(cx);
 3321        }
 3322
 3323        let dock = self.dock_at_position(dock_side);
 3324        dock.update(cx, |dock, cx| {
 3325            dock.set_open(!was_visible, window, cx);
 3326
 3327            if dock.active_panel().is_none() {
 3328                let Some(panel_ix) = dock
 3329                    .first_enabled_panel_idx(cx)
 3330                    .log_with_level(log::Level::Info)
 3331                else {
 3332                    return;
 3333                };
 3334                dock.activate_panel(panel_ix, window, cx);
 3335            }
 3336
 3337            if let Some(active_panel) = dock.active_panel() {
 3338                if was_visible {
 3339                    if active_panel
 3340                        .panel_focus_handle(cx)
 3341                        .contains_focused(window, cx)
 3342                    {
 3343                        focus_center = true;
 3344                    }
 3345                } else {
 3346                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3347                    window.focus(focus_handle, cx);
 3348                    reveal_dock = true;
 3349                }
 3350            }
 3351        });
 3352
 3353        if reveal_dock {
 3354            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3355        }
 3356
 3357        if focus_center {
 3358            self.active_pane
 3359                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3360        }
 3361
 3362        cx.notify();
 3363        self.serialize_workspace(window, cx);
 3364    }
 3365
 3366    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3367        self.all_docks().into_iter().find(|&dock| {
 3368            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3369        })
 3370    }
 3371
 3372    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3373        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3374            self.save_open_dock_positions(cx);
 3375            dock.update(cx, |dock, cx| {
 3376                dock.set_open(false, window, cx);
 3377            });
 3378            return true;
 3379        }
 3380        false
 3381    }
 3382
 3383    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3384        self.save_open_dock_positions(cx);
 3385        for dock in self.all_docks() {
 3386            dock.update(cx, |dock, cx| {
 3387                dock.set_open(false, window, cx);
 3388            });
 3389        }
 3390
 3391        cx.focus_self(window);
 3392        cx.notify();
 3393        self.serialize_workspace(window, cx);
 3394    }
 3395
 3396    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3397        self.all_docks()
 3398            .into_iter()
 3399            .filter_map(|dock| {
 3400                let dock_ref = dock.read(cx);
 3401                if dock_ref.is_open() {
 3402                    Some(dock_ref.position())
 3403                } else {
 3404                    None
 3405                }
 3406            })
 3407            .collect()
 3408    }
 3409
 3410    /// Saves the positions of currently open docks.
 3411    ///
 3412    /// Updates `last_open_dock_positions` with positions of all currently open
 3413    /// docks, to later be restored by the 'Toggle All Docks' action.
 3414    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3415        let open_dock_positions = self.get_open_dock_positions(cx);
 3416        if !open_dock_positions.is_empty() {
 3417            self.last_open_dock_positions = open_dock_positions;
 3418        }
 3419    }
 3420
 3421    /// Toggles all docks between open and closed states.
 3422    ///
 3423    /// If any docks are open, closes all and remembers their positions. If all
 3424    /// docks are closed, restores the last remembered dock configuration.
 3425    fn toggle_all_docks(
 3426        &mut self,
 3427        _: &ToggleAllDocks,
 3428        window: &mut Window,
 3429        cx: &mut Context<Self>,
 3430    ) {
 3431        let open_dock_positions = self.get_open_dock_positions(cx);
 3432
 3433        if !open_dock_positions.is_empty() {
 3434            self.close_all_docks(window, cx);
 3435        } else if !self.last_open_dock_positions.is_empty() {
 3436            self.restore_last_open_docks(window, cx);
 3437        }
 3438    }
 3439
 3440    /// Reopens docks from the most recently remembered configuration.
 3441    ///
 3442    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3443    /// and clears the stored positions.
 3444    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3445        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3446
 3447        for position in positions_to_open {
 3448            let dock = self.dock_at_position(position);
 3449            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3450        }
 3451
 3452        cx.focus_self(window);
 3453        cx.notify();
 3454        self.serialize_workspace(window, cx);
 3455    }
 3456
 3457    /// Transfer focus to the panel of the given type.
 3458    pub fn focus_panel<T: Panel>(
 3459        &mut self,
 3460        window: &mut Window,
 3461        cx: &mut Context<Self>,
 3462    ) -> Option<Entity<T>> {
 3463        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3464        panel.to_any().downcast().ok()
 3465    }
 3466
 3467    /// Focus the panel of the given type if it isn't already focused. If it is
 3468    /// already focused, then transfer focus back to the workspace center.
 3469    pub fn toggle_panel_focus<T: Panel>(
 3470        &mut self,
 3471        window: &mut Window,
 3472        cx: &mut Context<Self>,
 3473    ) -> bool {
 3474        let mut did_focus_panel = false;
 3475        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3476            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3477            did_focus_panel
 3478        });
 3479
 3480        telemetry::event!(
 3481            "Panel Button Clicked",
 3482            name = T::persistent_name(),
 3483            toggle_state = did_focus_panel
 3484        );
 3485
 3486        did_focus_panel
 3487    }
 3488
 3489    pub fn activate_panel_for_proto_id(
 3490        &mut self,
 3491        panel_id: PanelId,
 3492        window: &mut Window,
 3493        cx: &mut Context<Self>,
 3494    ) -> Option<Arc<dyn PanelHandle>> {
 3495        let mut panel = None;
 3496        for dock in self.all_docks() {
 3497            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3498                panel = dock.update(cx, |dock, cx| {
 3499                    dock.activate_panel(panel_index, window, cx);
 3500                    dock.set_open(true, window, cx);
 3501                    dock.active_panel().cloned()
 3502                });
 3503                break;
 3504            }
 3505        }
 3506
 3507        if panel.is_some() {
 3508            cx.notify();
 3509            self.serialize_workspace(window, cx);
 3510        }
 3511
 3512        panel
 3513    }
 3514
 3515    /// Focus or unfocus the given panel type, depending on the given callback.
 3516    fn focus_or_unfocus_panel<T: Panel>(
 3517        &mut self,
 3518        window: &mut Window,
 3519        cx: &mut Context<Self>,
 3520        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3521    ) -> Option<Arc<dyn PanelHandle>> {
 3522        let mut result_panel = None;
 3523        let mut serialize = false;
 3524        for dock in self.all_docks() {
 3525            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3526                let mut focus_center = false;
 3527                let panel = dock.update(cx, |dock, cx| {
 3528                    dock.activate_panel(panel_index, window, cx);
 3529
 3530                    let panel = dock.active_panel().cloned();
 3531                    if let Some(panel) = panel.as_ref() {
 3532                        if should_focus(&**panel, window, cx) {
 3533                            dock.set_open(true, window, cx);
 3534                            panel.panel_focus_handle(cx).focus(window, cx);
 3535                        } else {
 3536                            focus_center = true;
 3537                        }
 3538                    }
 3539                    panel
 3540                });
 3541
 3542                if focus_center {
 3543                    self.active_pane
 3544                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3545                }
 3546
 3547                result_panel = panel;
 3548                serialize = true;
 3549                break;
 3550            }
 3551        }
 3552
 3553        if serialize {
 3554            self.serialize_workspace(window, cx);
 3555        }
 3556
 3557        cx.notify();
 3558        result_panel
 3559    }
 3560
 3561    /// Open the panel of the given type
 3562    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3563        for dock in self.all_docks() {
 3564            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3565                dock.update(cx, |dock, cx| {
 3566                    dock.activate_panel(panel_index, window, cx);
 3567                    dock.set_open(true, window, cx);
 3568                });
 3569            }
 3570        }
 3571    }
 3572
 3573    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3574        for dock in self.all_docks().iter() {
 3575            dock.update(cx, |dock, cx| {
 3576                if dock.panel::<T>().is_some() {
 3577                    dock.set_open(false, window, cx)
 3578                }
 3579            })
 3580        }
 3581    }
 3582
 3583    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3584        self.all_docks()
 3585            .iter()
 3586            .find_map(|dock| dock.read(cx).panel::<T>())
 3587    }
 3588
 3589    fn dismiss_zoomed_items_to_reveal(
 3590        &mut self,
 3591        dock_to_reveal: Option<DockPosition>,
 3592        window: &mut Window,
 3593        cx: &mut Context<Self>,
 3594    ) {
 3595        // If a center pane is zoomed, unzoom it.
 3596        for pane in &self.panes {
 3597            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3598                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3599            }
 3600        }
 3601
 3602        // If another dock is zoomed, hide it.
 3603        let mut focus_center = false;
 3604        for dock in self.all_docks() {
 3605            dock.update(cx, |dock, cx| {
 3606                if Some(dock.position()) != dock_to_reveal
 3607                    && let Some(panel) = dock.active_panel()
 3608                    && panel.is_zoomed(window, cx)
 3609                {
 3610                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3611                    dock.set_open(false, window, cx);
 3612                }
 3613            });
 3614        }
 3615
 3616        if focus_center {
 3617            self.active_pane
 3618                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3619        }
 3620
 3621        if self.zoomed_position != dock_to_reveal {
 3622            self.zoomed = None;
 3623            self.zoomed_position = None;
 3624            cx.emit(Event::ZoomChanged);
 3625        }
 3626
 3627        cx.notify();
 3628    }
 3629
 3630    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3631        let pane = cx.new(|cx| {
 3632            let mut pane = Pane::new(
 3633                self.weak_handle(),
 3634                self.project.clone(),
 3635                self.pane_history_timestamp.clone(),
 3636                None,
 3637                NewFile.boxed_clone(),
 3638                true,
 3639                window,
 3640                cx,
 3641            );
 3642            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3643            pane
 3644        });
 3645        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3646            .detach();
 3647        self.panes.push(pane.clone());
 3648
 3649        window.focus(&pane.focus_handle(cx), cx);
 3650
 3651        cx.emit(Event::PaneAdded(pane.clone()));
 3652        pane
 3653    }
 3654
 3655    pub fn add_item_to_center(
 3656        &mut self,
 3657        item: Box<dyn ItemHandle>,
 3658        window: &mut Window,
 3659        cx: &mut Context<Self>,
 3660    ) -> bool {
 3661        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3662            if let Some(center_pane) = center_pane.upgrade() {
 3663                center_pane.update(cx, |pane, cx| {
 3664                    pane.add_item(item, true, true, None, window, cx)
 3665                });
 3666                true
 3667            } else {
 3668                false
 3669            }
 3670        } else {
 3671            false
 3672        }
 3673    }
 3674
 3675    pub fn add_item_to_active_pane(
 3676        &mut self,
 3677        item: Box<dyn ItemHandle>,
 3678        destination_index: Option<usize>,
 3679        focus_item: bool,
 3680        window: &mut Window,
 3681        cx: &mut App,
 3682    ) {
 3683        self.add_item(
 3684            self.active_pane.clone(),
 3685            item,
 3686            destination_index,
 3687            false,
 3688            focus_item,
 3689            window,
 3690            cx,
 3691        )
 3692    }
 3693
 3694    pub fn add_item(
 3695        &mut self,
 3696        pane: Entity<Pane>,
 3697        item: Box<dyn ItemHandle>,
 3698        destination_index: Option<usize>,
 3699        activate_pane: bool,
 3700        focus_item: bool,
 3701        window: &mut Window,
 3702        cx: &mut App,
 3703    ) {
 3704        pane.update(cx, |pane, cx| {
 3705            pane.add_item(
 3706                item,
 3707                activate_pane,
 3708                focus_item,
 3709                destination_index,
 3710                window,
 3711                cx,
 3712            )
 3713        });
 3714    }
 3715
 3716    pub fn split_item(
 3717        &mut self,
 3718        split_direction: SplitDirection,
 3719        item: Box<dyn ItemHandle>,
 3720        window: &mut Window,
 3721        cx: &mut Context<Self>,
 3722    ) {
 3723        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3724        self.add_item(new_pane, item, None, true, true, window, cx);
 3725    }
 3726
 3727    pub fn open_abs_path(
 3728        &mut self,
 3729        abs_path: PathBuf,
 3730        options: OpenOptions,
 3731        window: &mut Window,
 3732        cx: &mut Context<Self>,
 3733    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3734        cx.spawn_in(window, async move |workspace, cx| {
 3735            let open_paths_task_result = workspace
 3736                .update_in(cx, |workspace, window, cx| {
 3737                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3738                })
 3739                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3740                .await;
 3741            anyhow::ensure!(
 3742                open_paths_task_result.len() == 1,
 3743                "open abs path {abs_path:?} task returned incorrect number of results"
 3744            );
 3745            match open_paths_task_result
 3746                .into_iter()
 3747                .next()
 3748                .expect("ensured single task result")
 3749            {
 3750                Some(open_result) => {
 3751                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3752                }
 3753                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3754            }
 3755        })
 3756    }
 3757
 3758    pub fn split_abs_path(
 3759        &mut self,
 3760        abs_path: PathBuf,
 3761        visible: bool,
 3762        window: &mut Window,
 3763        cx: &mut Context<Self>,
 3764    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3765        let project_path_task =
 3766            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3767        cx.spawn_in(window, async move |this, cx| {
 3768            let (_, path) = project_path_task.await?;
 3769            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3770                .await
 3771        })
 3772    }
 3773
 3774    pub fn open_path(
 3775        &mut self,
 3776        path: impl Into<ProjectPath>,
 3777        pane: Option<WeakEntity<Pane>>,
 3778        focus_item: bool,
 3779        window: &mut Window,
 3780        cx: &mut App,
 3781    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3782        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3783    }
 3784
 3785    pub fn open_path_preview(
 3786        &mut self,
 3787        path: impl Into<ProjectPath>,
 3788        pane: Option<WeakEntity<Pane>>,
 3789        focus_item: bool,
 3790        allow_preview: bool,
 3791        activate: bool,
 3792        window: &mut Window,
 3793        cx: &mut App,
 3794    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3795        let pane = pane.unwrap_or_else(|| {
 3796            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3797                self.panes
 3798                    .first()
 3799                    .expect("There must be an active pane")
 3800                    .downgrade()
 3801            })
 3802        });
 3803
 3804        let project_path = path.into();
 3805        let task = self.load_path(project_path.clone(), window, cx);
 3806        window.spawn(cx, async move |cx| {
 3807            let (project_entry_id, build_item) = task.await?;
 3808
 3809            pane.update_in(cx, |pane, window, cx| {
 3810                pane.open_item(
 3811                    project_entry_id,
 3812                    project_path,
 3813                    focus_item,
 3814                    allow_preview,
 3815                    activate,
 3816                    None,
 3817                    window,
 3818                    cx,
 3819                    build_item,
 3820                )
 3821            })
 3822        })
 3823    }
 3824
 3825    pub fn split_path(
 3826        &mut self,
 3827        path: impl Into<ProjectPath>,
 3828        window: &mut Window,
 3829        cx: &mut Context<Self>,
 3830    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3831        self.split_path_preview(path, false, None, window, cx)
 3832    }
 3833
 3834    pub fn split_path_preview(
 3835        &mut self,
 3836        path: impl Into<ProjectPath>,
 3837        allow_preview: bool,
 3838        split_direction: Option<SplitDirection>,
 3839        window: &mut Window,
 3840        cx: &mut Context<Self>,
 3841    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3842        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3843            self.panes
 3844                .first()
 3845                .expect("There must be an active pane")
 3846                .downgrade()
 3847        });
 3848
 3849        if let Member::Pane(center_pane) = &self.center.root
 3850            && center_pane.read(cx).items_len() == 0
 3851        {
 3852            return self.open_path(path, Some(pane), true, window, cx);
 3853        }
 3854
 3855        let project_path = path.into();
 3856        let task = self.load_path(project_path.clone(), window, cx);
 3857        cx.spawn_in(window, async move |this, cx| {
 3858            let (project_entry_id, build_item) = task.await?;
 3859            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3860                let pane = pane.upgrade()?;
 3861                let new_pane = this.split_pane(
 3862                    pane,
 3863                    split_direction.unwrap_or(SplitDirection::Right),
 3864                    window,
 3865                    cx,
 3866                );
 3867                new_pane.update(cx, |new_pane, cx| {
 3868                    Some(new_pane.open_item(
 3869                        project_entry_id,
 3870                        project_path,
 3871                        true,
 3872                        allow_preview,
 3873                        true,
 3874                        None,
 3875                        window,
 3876                        cx,
 3877                        build_item,
 3878                    ))
 3879                })
 3880            })
 3881            .map(|option| option.context("pane was dropped"))?
 3882        })
 3883    }
 3884
 3885    fn load_path(
 3886        &mut self,
 3887        path: ProjectPath,
 3888        window: &mut Window,
 3889        cx: &mut App,
 3890    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3891        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3892        registry.open_path(self.project(), &path, window, cx)
 3893    }
 3894
 3895    pub fn find_project_item<T>(
 3896        &self,
 3897        pane: &Entity<Pane>,
 3898        project_item: &Entity<T::Item>,
 3899        cx: &App,
 3900    ) -> Option<Entity<T>>
 3901    where
 3902        T: ProjectItem,
 3903    {
 3904        use project::ProjectItem as _;
 3905        let project_item = project_item.read(cx);
 3906        let entry_id = project_item.entry_id(cx);
 3907        let project_path = project_item.project_path(cx);
 3908
 3909        let mut item = None;
 3910        if let Some(entry_id) = entry_id {
 3911            item = pane.read(cx).item_for_entry(entry_id, cx);
 3912        }
 3913        if item.is_none()
 3914            && let Some(project_path) = project_path
 3915        {
 3916            item = pane.read(cx).item_for_path(project_path, cx);
 3917        }
 3918
 3919        item.and_then(|item| item.downcast::<T>())
 3920    }
 3921
 3922    pub fn is_project_item_open<T>(
 3923        &self,
 3924        pane: &Entity<Pane>,
 3925        project_item: &Entity<T::Item>,
 3926        cx: &App,
 3927    ) -> bool
 3928    where
 3929        T: ProjectItem,
 3930    {
 3931        self.find_project_item::<T>(pane, project_item, cx)
 3932            .is_some()
 3933    }
 3934
 3935    pub fn open_project_item<T>(
 3936        &mut self,
 3937        pane: Entity<Pane>,
 3938        project_item: Entity<T::Item>,
 3939        activate_pane: bool,
 3940        focus_item: bool,
 3941        keep_old_preview: bool,
 3942        allow_new_preview: bool,
 3943        window: &mut Window,
 3944        cx: &mut Context<Self>,
 3945    ) -> Entity<T>
 3946    where
 3947        T: ProjectItem,
 3948    {
 3949        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3950
 3951        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3952            if !keep_old_preview
 3953                && let Some(old_id) = old_item_id
 3954                && old_id != item.item_id()
 3955            {
 3956                // switching to a different item, so unpreview old active item
 3957                pane.update(cx, |pane, _| {
 3958                    pane.unpreview_item_if_preview(old_id);
 3959                });
 3960            }
 3961
 3962            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3963            if !allow_new_preview {
 3964                pane.update(cx, |pane, _| {
 3965                    pane.unpreview_item_if_preview(item.item_id());
 3966                });
 3967            }
 3968            return item;
 3969        }
 3970
 3971        let item = pane.update(cx, |pane, cx| {
 3972            cx.new(|cx| {
 3973                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3974            })
 3975        });
 3976        let mut destination_index = None;
 3977        pane.update(cx, |pane, cx| {
 3978            if !keep_old_preview && let Some(old_id) = old_item_id {
 3979                pane.unpreview_item_if_preview(old_id);
 3980            }
 3981            if allow_new_preview {
 3982                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3983            }
 3984        });
 3985
 3986        self.add_item(
 3987            pane,
 3988            Box::new(item.clone()),
 3989            destination_index,
 3990            activate_pane,
 3991            focus_item,
 3992            window,
 3993            cx,
 3994        );
 3995        item
 3996    }
 3997
 3998    pub fn open_shared_screen(
 3999        &mut self,
 4000        peer_id: PeerId,
 4001        window: &mut Window,
 4002        cx: &mut Context<Self>,
 4003    ) {
 4004        if let Some(shared_screen) =
 4005            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4006        {
 4007            self.active_pane.update(cx, |pane, cx| {
 4008                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4009            });
 4010        }
 4011    }
 4012
 4013    pub fn activate_item(
 4014        &mut self,
 4015        item: &dyn ItemHandle,
 4016        activate_pane: bool,
 4017        focus_item: bool,
 4018        window: &mut Window,
 4019        cx: &mut App,
 4020    ) -> bool {
 4021        let result = self.panes.iter().find_map(|pane| {
 4022            pane.read(cx)
 4023                .index_for_item(item)
 4024                .map(|ix| (pane.clone(), ix))
 4025        });
 4026        if let Some((pane, ix)) = result {
 4027            pane.update(cx, |pane, cx| {
 4028                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4029            });
 4030            true
 4031        } else {
 4032            false
 4033        }
 4034    }
 4035
 4036    fn activate_pane_at_index(
 4037        &mut self,
 4038        action: &ActivatePane,
 4039        window: &mut Window,
 4040        cx: &mut Context<Self>,
 4041    ) {
 4042        let panes = self.center.panes();
 4043        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4044            window.focus(&pane.focus_handle(cx), cx);
 4045        } else {
 4046            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4047                .detach();
 4048        }
 4049    }
 4050
 4051    fn move_item_to_pane_at_index(
 4052        &mut self,
 4053        action: &MoveItemToPane,
 4054        window: &mut Window,
 4055        cx: &mut Context<Self>,
 4056    ) {
 4057        let panes = self.center.panes();
 4058        let destination = match panes.get(action.destination) {
 4059            Some(&destination) => destination.clone(),
 4060            None => {
 4061                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4062                    return;
 4063                }
 4064                let direction = SplitDirection::Right;
 4065                let split_off_pane = self
 4066                    .find_pane_in_direction(direction, cx)
 4067                    .unwrap_or_else(|| self.active_pane.clone());
 4068                let new_pane = self.add_pane(window, cx);
 4069                if self
 4070                    .center
 4071                    .split(&split_off_pane, &new_pane, direction, cx)
 4072                    .log_err()
 4073                    .is_none()
 4074                {
 4075                    return;
 4076                };
 4077                new_pane
 4078            }
 4079        };
 4080
 4081        if action.clone {
 4082            if self
 4083                .active_pane
 4084                .read(cx)
 4085                .active_item()
 4086                .is_some_and(|item| item.can_split(cx))
 4087            {
 4088                clone_active_item(
 4089                    self.database_id(),
 4090                    &self.active_pane,
 4091                    &destination,
 4092                    action.focus,
 4093                    window,
 4094                    cx,
 4095                );
 4096                return;
 4097            }
 4098        }
 4099        move_active_item(
 4100            &self.active_pane,
 4101            &destination,
 4102            action.focus,
 4103            true,
 4104            window,
 4105            cx,
 4106        )
 4107    }
 4108
 4109    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4110        let panes = self.center.panes();
 4111        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4112            let next_ix = (ix + 1) % panes.len();
 4113            let next_pane = panes[next_ix].clone();
 4114            window.focus(&next_pane.focus_handle(cx), cx);
 4115        }
 4116    }
 4117
 4118    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4119        let panes = self.center.panes();
 4120        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4121            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4122            let prev_pane = panes[prev_ix].clone();
 4123            window.focus(&prev_pane.focus_handle(cx), cx);
 4124        }
 4125    }
 4126
 4127    pub fn activate_pane_in_direction(
 4128        &mut self,
 4129        direction: SplitDirection,
 4130        window: &mut Window,
 4131        cx: &mut App,
 4132    ) {
 4133        use ActivateInDirectionTarget as Target;
 4134        enum Origin {
 4135            LeftDock,
 4136            RightDock,
 4137            BottomDock,
 4138            Center,
 4139        }
 4140
 4141        let origin: Origin = [
 4142            (&self.left_dock, Origin::LeftDock),
 4143            (&self.right_dock, Origin::RightDock),
 4144            (&self.bottom_dock, Origin::BottomDock),
 4145        ]
 4146        .into_iter()
 4147        .find_map(|(dock, origin)| {
 4148            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4149                Some(origin)
 4150            } else {
 4151                None
 4152            }
 4153        })
 4154        .unwrap_or(Origin::Center);
 4155
 4156        let get_last_active_pane = || {
 4157            let pane = self
 4158                .last_active_center_pane
 4159                .clone()
 4160                .unwrap_or_else(|| {
 4161                    self.panes
 4162                        .first()
 4163                        .expect("There must be an active pane")
 4164                        .downgrade()
 4165                })
 4166                .upgrade()?;
 4167            (pane.read(cx).items_len() != 0).then_some(pane)
 4168        };
 4169
 4170        let try_dock =
 4171            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4172
 4173        let target = match (origin, direction) {
 4174            // We're in the center, so we first try to go to a different pane,
 4175            // otherwise try to go to a dock.
 4176            (Origin::Center, direction) => {
 4177                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4178                    Some(Target::Pane(pane))
 4179                } else {
 4180                    match direction {
 4181                        SplitDirection::Up => None,
 4182                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4183                        SplitDirection::Left => try_dock(&self.left_dock),
 4184                        SplitDirection::Right => try_dock(&self.right_dock),
 4185                    }
 4186                }
 4187            }
 4188
 4189            (Origin::LeftDock, SplitDirection::Right) => {
 4190                if let Some(last_active_pane) = get_last_active_pane() {
 4191                    Some(Target::Pane(last_active_pane))
 4192                } else {
 4193                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4194                }
 4195            }
 4196
 4197            (Origin::LeftDock, SplitDirection::Down)
 4198            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4199
 4200            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4201            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4202            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4203
 4204            (Origin::RightDock, SplitDirection::Left) => {
 4205                if let Some(last_active_pane) = get_last_active_pane() {
 4206                    Some(Target::Pane(last_active_pane))
 4207                } else {
 4208                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4209                }
 4210            }
 4211
 4212            _ => None,
 4213        };
 4214
 4215        match target {
 4216            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4217                let pane = pane.read(cx);
 4218                if let Some(item) = pane.active_item() {
 4219                    item.item_focus_handle(cx).focus(window, cx);
 4220                } else {
 4221                    log::error!(
 4222                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4223                    );
 4224                }
 4225            }
 4226            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4227                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4228                window.defer(cx, move |window, cx| {
 4229                    let dock = dock.read(cx);
 4230                    if let Some(panel) = dock.active_panel() {
 4231                        panel.panel_focus_handle(cx).focus(window, cx);
 4232                    } else {
 4233                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4234                    }
 4235                })
 4236            }
 4237            None => {}
 4238        }
 4239    }
 4240
 4241    pub fn move_item_to_pane_in_direction(
 4242        &mut self,
 4243        action: &MoveItemToPaneInDirection,
 4244        window: &mut Window,
 4245        cx: &mut Context<Self>,
 4246    ) {
 4247        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4248            Some(destination) => destination,
 4249            None => {
 4250                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4251                    return;
 4252                }
 4253                let new_pane = self.add_pane(window, cx);
 4254                if self
 4255                    .center
 4256                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4257                    .log_err()
 4258                    .is_none()
 4259                {
 4260                    return;
 4261                };
 4262                new_pane
 4263            }
 4264        };
 4265
 4266        if action.clone {
 4267            if self
 4268                .active_pane
 4269                .read(cx)
 4270                .active_item()
 4271                .is_some_and(|item| item.can_split(cx))
 4272            {
 4273                clone_active_item(
 4274                    self.database_id(),
 4275                    &self.active_pane,
 4276                    &destination,
 4277                    action.focus,
 4278                    window,
 4279                    cx,
 4280                );
 4281                return;
 4282            }
 4283        }
 4284        move_active_item(
 4285            &self.active_pane,
 4286            &destination,
 4287            action.focus,
 4288            true,
 4289            window,
 4290            cx,
 4291        );
 4292    }
 4293
 4294    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4295        self.center.bounding_box_for_pane(pane)
 4296    }
 4297
 4298    pub fn find_pane_in_direction(
 4299        &mut self,
 4300        direction: SplitDirection,
 4301        cx: &App,
 4302    ) -> Option<Entity<Pane>> {
 4303        self.center
 4304            .find_pane_in_direction(&self.active_pane, direction, cx)
 4305            .cloned()
 4306    }
 4307
 4308    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4309        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4310            self.center.swap(&self.active_pane, &to, cx);
 4311            cx.notify();
 4312        }
 4313    }
 4314
 4315    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4316        if self
 4317            .center
 4318            .move_to_border(&self.active_pane, direction, cx)
 4319            .unwrap()
 4320        {
 4321            cx.notify();
 4322        }
 4323    }
 4324
 4325    pub fn resize_pane(
 4326        &mut self,
 4327        axis: gpui::Axis,
 4328        amount: Pixels,
 4329        window: &mut Window,
 4330        cx: &mut Context<Self>,
 4331    ) {
 4332        let docks = self.all_docks();
 4333        let active_dock = docks
 4334            .into_iter()
 4335            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4336
 4337        if let Some(dock) = active_dock {
 4338            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4339                return;
 4340            };
 4341            match dock.read(cx).position() {
 4342                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4343                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4344                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4345            }
 4346        } else {
 4347            self.center
 4348                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4349        }
 4350        cx.notify();
 4351    }
 4352
 4353    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4354        self.center.reset_pane_sizes(cx);
 4355        cx.notify();
 4356    }
 4357
 4358    fn handle_pane_focused(
 4359        &mut self,
 4360        pane: Entity<Pane>,
 4361        window: &mut Window,
 4362        cx: &mut Context<Self>,
 4363    ) {
 4364        // This is explicitly hoisted out of the following check for pane identity as
 4365        // terminal panel panes are not registered as a center panes.
 4366        self.status_bar.update(cx, |status_bar, cx| {
 4367            status_bar.set_active_pane(&pane, window, cx);
 4368        });
 4369        if self.active_pane != pane {
 4370            self.set_active_pane(&pane, window, cx);
 4371        }
 4372
 4373        if self.last_active_center_pane.is_none() {
 4374            self.last_active_center_pane = Some(pane.downgrade());
 4375        }
 4376
 4377        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4378        // This prevents the dock from closing when focus events fire during window activation.
 4379        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4380            let dock_read = dock.read(cx);
 4381            if let Some(panel) = dock_read.active_panel()
 4382                && let Some(dock_pane) = panel.pane(cx)
 4383                && dock_pane == pane
 4384            {
 4385                Some(dock_read.position())
 4386            } else {
 4387                None
 4388            }
 4389        });
 4390
 4391        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4392        if pane.read(cx).is_zoomed() {
 4393            self.zoomed = Some(pane.downgrade().into());
 4394        } else {
 4395            self.zoomed = None;
 4396        }
 4397        self.zoomed_position = None;
 4398        cx.emit(Event::ZoomChanged);
 4399        self.update_active_view_for_followers(window, cx);
 4400        pane.update(cx, |pane, _| {
 4401            pane.track_alternate_file_items();
 4402        });
 4403
 4404        cx.notify();
 4405    }
 4406
 4407    fn set_active_pane(
 4408        &mut self,
 4409        pane: &Entity<Pane>,
 4410        window: &mut Window,
 4411        cx: &mut Context<Self>,
 4412    ) {
 4413        self.active_pane = pane.clone();
 4414        self.active_item_path_changed(true, window, cx);
 4415        self.last_active_center_pane = Some(pane.downgrade());
 4416    }
 4417
 4418    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4419        self.update_active_view_for_followers(window, cx);
 4420    }
 4421
 4422    fn handle_pane_event(
 4423        &mut self,
 4424        pane: &Entity<Pane>,
 4425        event: &pane::Event,
 4426        window: &mut Window,
 4427        cx: &mut Context<Self>,
 4428    ) {
 4429        let mut serialize_workspace = true;
 4430        match event {
 4431            pane::Event::AddItem { item } => {
 4432                item.added_to_pane(self, pane.clone(), window, cx);
 4433                cx.emit(Event::ItemAdded {
 4434                    item: item.boxed_clone(),
 4435                });
 4436            }
 4437            pane::Event::Split { direction, mode } => {
 4438                match mode {
 4439                    SplitMode::ClonePane => {
 4440                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4441                            .detach();
 4442                    }
 4443                    SplitMode::EmptyPane => {
 4444                        self.split_pane(pane.clone(), *direction, window, cx);
 4445                    }
 4446                    SplitMode::MovePane => {
 4447                        self.split_and_move(pane.clone(), *direction, window, cx);
 4448                    }
 4449                };
 4450            }
 4451            pane::Event::JoinIntoNext => {
 4452                self.join_pane_into_next(pane.clone(), window, cx);
 4453            }
 4454            pane::Event::JoinAll => {
 4455                self.join_all_panes(window, cx);
 4456            }
 4457            pane::Event::Remove { focus_on_pane } => {
 4458                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4459            }
 4460            pane::Event::ActivateItem {
 4461                local,
 4462                focus_changed,
 4463            } => {
 4464                window.invalidate_character_coordinates();
 4465
 4466                pane.update(cx, |pane, _| {
 4467                    pane.track_alternate_file_items();
 4468                });
 4469                if *local {
 4470                    self.unfollow_in_pane(pane, window, cx);
 4471                }
 4472                serialize_workspace = *focus_changed || pane != self.active_pane();
 4473                if pane == self.active_pane() {
 4474                    self.active_item_path_changed(*focus_changed, window, cx);
 4475                    self.update_active_view_for_followers(window, cx);
 4476                } else if *local {
 4477                    self.set_active_pane(pane, window, cx);
 4478                }
 4479            }
 4480            pane::Event::UserSavedItem { item, save_intent } => {
 4481                cx.emit(Event::UserSavedItem {
 4482                    pane: pane.downgrade(),
 4483                    item: item.boxed_clone(),
 4484                    save_intent: *save_intent,
 4485                });
 4486                serialize_workspace = false;
 4487            }
 4488            pane::Event::ChangeItemTitle => {
 4489                if *pane == self.active_pane {
 4490                    self.active_item_path_changed(false, window, cx);
 4491                }
 4492                serialize_workspace = false;
 4493            }
 4494            pane::Event::RemovedItem { item } => {
 4495                cx.emit(Event::ActiveItemChanged);
 4496                self.update_window_edited(window, cx);
 4497                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4498                    && entry.get().entity_id() == pane.entity_id()
 4499                {
 4500                    entry.remove();
 4501                }
 4502                cx.emit(Event::ItemRemoved {
 4503                    item_id: item.item_id(),
 4504                });
 4505            }
 4506            pane::Event::Focus => {
 4507                window.invalidate_character_coordinates();
 4508                self.handle_pane_focused(pane.clone(), window, cx);
 4509            }
 4510            pane::Event::ZoomIn => {
 4511                if *pane == self.active_pane {
 4512                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4513                    if pane.read(cx).has_focus(window, cx) {
 4514                        self.zoomed = Some(pane.downgrade().into());
 4515                        self.zoomed_position = None;
 4516                        cx.emit(Event::ZoomChanged);
 4517                    }
 4518                    cx.notify();
 4519                }
 4520            }
 4521            pane::Event::ZoomOut => {
 4522                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4523                if self.zoomed_position.is_none() {
 4524                    self.zoomed = None;
 4525                    cx.emit(Event::ZoomChanged);
 4526                }
 4527                cx.notify();
 4528            }
 4529            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4530        }
 4531
 4532        if serialize_workspace {
 4533            self.serialize_workspace(window, cx);
 4534        }
 4535    }
 4536
 4537    pub fn unfollow_in_pane(
 4538        &mut self,
 4539        pane: &Entity<Pane>,
 4540        window: &mut Window,
 4541        cx: &mut Context<Workspace>,
 4542    ) -> Option<CollaboratorId> {
 4543        let leader_id = self.leader_for_pane(pane)?;
 4544        self.unfollow(leader_id, window, cx);
 4545        Some(leader_id)
 4546    }
 4547
 4548    pub fn split_pane(
 4549        &mut self,
 4550        pane_to_split: Entity<Pane>,
 4551        split_direction: SplitDirection,
 4552        window: &mut Window,
 4553        cx: &mut Context<Self>,
 4554    ) -> Entity<Pane> {
 4555        let new_pane = self.add_pane(window, cx);
 4556        self.center
 4557            .split(&pane_to_split, &new_pane, split_direction, cx)
 4558            .unwrap();
 4559        cx.notify();
 4560        new_pane
 4561    }
 4562
 4563    pub fn split_and_move(
 4564        &mut self,
 4565        pane: Entity<Pane>,
 4566        direction: SplitDirection,
 4567        window: &mut Window,
 4568        cx: &mut Context<Self>,
 4569    ) {
 4570        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4571            return;
 4572        };
 4573        let new_pane = self.add_pane(window, cx);
 4574        new_pane.update(cx, |pane, cx| {
 4575            pane.add_item(item, true, true, None, window, cx)
 4576        });
 4577        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4578        cx.notify();
 4579    }
 4580
 4581    pub fn split_and_clone(
 4582        &mut self,
 4583        pane: Entity<Pane>,
 4584        direction: SplitDirection,
 4585        window: &mut Window,
 4586        cx: &mut Context<Self>,
 4587    ) -> Task<Option<Entity<Pane>>> {
 4588        let Some(item) = pane.read(cx).active_item() else {
 4589            return Task::ready(None);
 4590        };
 4591        if !item.can_split(cx) {
 4592            return Task::ready(None);
 4593        }
 4594        let task = item.clone_on_split(self.database_id(), window, cx);
 4595        cx.spawn_in(window, async move |this, cx| {
 4596            if let Some(clone) = task.await {
 4597                this.update_in(cx, |this, window, cx| {
 4598                    let new_pane = this.add_pane(window, cx);
 4599                    let nav_history = pane.read(cx).fork_nav_history();
 4600                    new_pane.update(cx, |pane, cx| {
 4601                        pane.set_nav_history(nav_history, cx);
 4602                        pane.add_item(clone, true, true, None, window, cx)
 4603                    });
 4604                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4605                    cx.notify();
 4606                    new_pane
 4607                })
 4608                .ok()
 4609            } else {
 4610                None
 4611            }
 4612        })
 4613    }
 4614
 4615    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4616        let active_item = self.active_pane.read(cx).active_item();
 4617        for pane in &self.panes {
 4618            join_pane_into_active(&self.active_pane, pane, window, cx);
 4619        }
 4620        if let Some(active_item) = active_item {
 4621            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4622        }
 4623        cx.notify();
 4624    }
 4625
 4626    pub fn join_pane_into_next(
 4627        &mut self,
 4628        pane: Entity<Pane>,
 4629        window: &mut Window,
 4630        cx: &mut Context<Self>,
 4631    ) {
 4632        let next_pane = self
 4633            .find_pane_in_direction(SplitDirection::Right, cx)
 4634            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4635            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4636            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4637        let Some(next_pane) = next_pane else {
 4638            return;
 4639        };
 4640        move_all_items(&pane, &next_pane, window, cx);
 4641        cx.notify();
 4642    }
 4643
 4644    fn remove_pane(
 4645        &mut self,
 4646        pane: Entity<Pane>,
 4647        focus_on: Option<Entity<Pane>>,
 4648        window: &mut Window,
 4649        cx: &mut Context<Self>,
 4650    ) {
 4651        if self.center.remove(&pane, cx).unwrap() {
 4652            self.force_remove_pane(&pane, &focus_on, window, cx);
 4653            self.unfollow_in_pane(&pane, window, cx);
 4654            self.last_leaders_by_pane.remove(&pane.downgrade());
 4655            for removed_item in pane.read(cx).items() {
 4656                self.panes_by_item.remove(&removed_item.item_id());
 4657            }
 4658
 4659            cx.notify();
 4660        } else {
 4661            self.active_item_path_changed(true, window, cx);
 4662        }
 4663        cx.emit(Event::PaneRemoved);
 4664    }
 4665
 4666    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4667        &mut self.panes
 4668    }
 4669
 4670    pub fn panes(&self) -> &[Entity<Pane>] {
 4671        &self.panes
 4672    }
 4673
 4674    pub fn active_pane(&self) -> &Entity<Pane> {
 4675        &self.active_pane
 4676    }
 4677
 4678    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4679        for dock in self.all_docks() {
 4680            if dock.focus_handle(cx).contains_focused(window, cx)
 4681                && let Some(pane) = dock
 4682                    .read(cx)
 4683                    .active_panel()
 4684                    .and_then(|panel| panel.pane(cx))
 4685            {
 4686                return pane;
 4687            }
 4688        }
 4689        self.active_pane().clone()
 4690    }
 4691
 4692    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4693        self.find_pane_in_direction(SplitDirection::Right, cx)
 4694            .unwrap_or_else(|| {
 4695                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4696            })
 4697    }
 4698
 4699    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4700        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4701        weak_pane.upgrade()
 4702    }
 4703
 4704    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4705        self.follower_states.retain(|leader_id, state| {
 4706            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4707                for item in state.items_by_leader_view_id.values() {
 4708                    item.view.set_leader_id(None, window, cx);
 4709                }
 4710                false
 4711            } else {
 4712                true
 4713            }
 4714        });
 4715        cx.notify();
 4716    }
 4717
 4718    pub fn start_following(
 4719        &mut self,
 4720        leader_id: impl Into<CollaboratorId>,
 4721        window: &mut Window,
 4722        cx: &mut Context<Self>,
 4723    ) -> Option<Task<Result<()>>> {
 4724        let leader_id = leader_id.into();
 4725        let pane = self.active_pane().clone();
 4726
 4727        self.last_leaders_by_pane
 4728            .insert(pane.downgrade(), leader_id);
 4729        self.unfollow(leader_id, window, cx);
 4730        self.unfollow_in_pane(&pane, window, cx);
 4731        self.follower_states.insert(
 4732            leader_id,
 4733            FollowerState {
 4734                center_pane: pane.clone(),
 4735                dock_pane: None,
 4736                active_view_id: None,
 4737                items_by_leader_view_id: Default::default(),
 4738            },
 4739        );
 4740        cx.notify();
 4741
 4742        match leader_id {
 4743            CollaboratorId::PeerId(leader_peer_id) => {
 4744                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4745                let project_id = self.project.read(cx).remote_id();
 4746                let request = self.app_state.client.request(proto::Follow {
 4747                    room_id,
 4748                    project_id,
 4749                    leader_id: Some(leader_peer_id),
 4750                });
 4751
 4752                Some(cx.spawn_in(window, async move |this, cx| {
 4753                    let response = request.await?;
 4754                    this.update(cx, |this, _| {
 4755                        let state = this
 4756                            .follower_states
 4757                            .get_mut(&leader_id)
 4758                            .context("following interrupted")?;
 4759                        state.active_view_id = response
 4760                            .active_view
 4761                            .as_ref()
 4762                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4763                        anyhow::Ok(())
 4764                    })??;
 4765                    if let Some(view) = response.active_view {
 4766                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4767                    }
 4768                    this.update_in(cx, |this, window, cx| {
 4769                        this.leader_updated(leader_id, window, cx)
 4770                    })?;
 4771                    Ok(())
 4772                }))
 4773            }
 4774            CollaboratorId::Agent => {
 4775                self.leader_updated(leader_id, window, cx)?;
 4776                Some(Task::ready(Ok(())))
 4777            }
 4778        }
 4779    }
 4780
 4781    pub fn follow_next_collaborator(
 4782        &mut self,
 4783        _: &FollowNextCollaborator,
 4784        window: &mut Window,
 4785        cx: &mut Context<Self>,
 4786    ) {
 4787        let collaborators = self.project.read(cx).collaborators();
 4788        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4789            let mut collaborators = collaborators.keys().copied();
 4790            for peer_id in collaborators.by_ref() {
 4791                if CollaboratorId::PeerId(peer_id) == leader_id {
 4792                    break;
 4793                }
 4794            }
 4795            collaborators.next().map(CollaboratorId::PeerId)
 4796        } else if let Some(last_leader_id) =
 4797            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4798        {
 4799            match last_leader_id {
 4800                CollaboratorId::PeerId(peer_id) => {
 4801                    if collaborators.contains_key(peer_id) {
 4802                        Some(*last_leader_id)
 4803                    } else {
 4804                        None
 4805                    }
 4806                }
 4807                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4808            }
 4809        } else {
 4810            None
 4811        };
 4812
 4813        let pane = self.active_pane.clone();
 4814        let Some(leader_id) = next_leader_id.or_else(|| {
 4815            Some(CollaboratorId::PeerId(
 4816                collaborators.keys().copied().next()?,
 4817            ))
 4818        }) else {
 4819            return;
 4820        };
 4821        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4822            return;
 4823        }
 4824        if let Some(task) = self.start_following(leader_id, window, cx) {
 4825            task.detach_and_log_err(cx)
 4826        }
 4827    }
 4828
 4829    pub fn follow(
 4830        &mut self,
 4831        leader_id: impl Into<CollaboratorId>,
 4832        window: &mut Window,
 4833        cx: &mut Context<Self>,
 4834    ) {
 4835        let leader_id = leader_id.into();
 4836
 4837        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4838            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4839                return;
 4840            };
 4841            let room = room.read(cx);
 4842            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4843                return;
 4844            };
 4845
 4846            let project = self.project.read(cx);
 4847
 4848            let other_project_id = match remote_participant.location {
 4849                call::ParticipantLocation::External => None,
 4850                call::ParticipantLocation::UnsharedProject => None,
 4851                call::ParticipantLocation::SharedProject { project_id } => {
 4852                    if Some(project_id) == project.remote_id() {
 4853                        None
 4854                    } else {
 4855                        Some(project_id)
 4856                    }
 4857                }
 4858            };
 4859
 4860            // if they are active in another project, follow there.
 4861            if let Some(project_id) = other_project_id {
 4862                let app_state = self.app_state.clone();
 4863                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4864                    .detach_and_log_err(cx);
 4865            }
 4866        }
 4867
 4868        // if you're already following, find the right pane and focus it.
 4869        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4870            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4871
 4872            return;
 4873        }
 4874
 4875        // Otherwise, follow.
 4876        if let Some(task) = self.start_following(leader_id, window, cx) {
 4877            task.detach_and_log_err(cx)
 4878        }
 4879    }
 4880
 4881    pub fn unfollow(
 4882        &mut self,
 4883        leader_id: impl Into<CollaboratorId>,
 4884        window: &mut Window,
 4885        cx: &mut Context<Self>,
 4886    ) -> Option<()> {
 4887        cx.notify();
 4888
 4889        let leader_id = leader_id.into();
 4890        let state = self.follower_states.remove(&leader_id)?;
 4891        for (_, item) in state.items_by_leader_view_id {
 4892            item.view.set_leader_id(None, window, cx);
 4893        }
 4894
 4895        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4896            let project_id = self.project.read(cx).remote_id();
 4897            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4898            self.app_state
 4899                .client
 4900                .send(proto::Unfollow {
 4901                    room_id,
 4902                    project_id,
 4903                    leader_id: Some(leader_peer_id),
 4904                })
 4905                .log_err();
 4906        }
 4907
 4908        Some(())
 4909    }
 4910
 4911    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4912        self.follower_states.contains_key(&id.into())
 4913    }
 4914
 4915    fn active_item_path_changed(
 4916        &mut self,
 4917        focus_changed: bool,
 4918        window: &mut Window,
 4919        cx: &mut Context<Self>,
 4920    ) {
 4921        cx.emit(Event::ActiveItemChanged);
 4922        let active_entry = self.active_project_path(cx);
 4923        self.project.update(cx, |project, cx| {
 4924            project.set_active_path(active_entry.clone(), cx)
 4925        });
 4926
 4927        if focus_changed && let Some(project_path) = &active_entry {
 4928            let git_store_entity = self.project.read(cx).git_store().clone();
 4929            git_store_entity.update(cx, |git_store, cx| {
 4930                git_store.set_active_repo_for_path(project_path, cx);
 4931            });
 4932        }
 4933
 4934        self.update_window_title(window, cx);
 4935    }
 4936
 4937    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4938        let project = self.project().read(cx);
 4939        let mut title = String::new();
 4940
 4941        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4942            let name = {
 4943                let settings_location = SettingsLocation {
 4944                    worktree_id: worktree.read(cx).id(),
 4945                    path: RelPath::empty(),
 4946                };
 4947
 4948                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4949                match &settings.project_name {
 4950                    Some(name) => name.as_str(),
 4951                    None => worktree.read(cx).root_name_str(),
 4952                }
 4953            };
 4954            if i > 0 {
 4955                title.push_str(", ");
 4956            }
 4957            title.push_str(name);
 4958        }
 4959
 4960        if title.is_empty() {
 4961            title = "empty project".to_string();
 4962        }
 4963
 4964        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4965            let filename = path.path.file_name().or_else(|| {
 4966                Some(
 4967                    project
 4968                        .worktree_for_id(path.worktree_id, cx)?
 4969                        .read(cx)
 4970                        .root_name_str(),
 4971                )
 4972            });
 4973
 4974            if let Some(filename) = filename {
 4975                title.push_str("");
 4976                title.push_str(filename.as_ref());
 4977            }
 4978        }
 4979
 4980        if project.is_via_collab() {
 4981            title.push_str("");
 4982        } else if project.is_shared() {
 4983            title.push_str("");
 4984        }
 4985
 4986        if let Some(last_title) = self.last_window_title.as_ref()
 4987            && &title == last_title
 4988        {
 4989            return;
 4990        }
 4991        window.set_window_title(&title);
 4992        SystemWindowTabController::update_tab_title(
 4993            cx,
 4994            window.window_handle().window_id(),
 4995            SharedString::from(&title),
 4996        );
 4997        self.last_window_title = Some(title);
 4998    }
 4999
 5000    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5001        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5002        if is_edited != self.window_edited {
 5003            self.window_edited = is_edited;
 5004            window.set_window_edited(self.window_edited)
 5005        }
 5006    }
 5007
 5008    fn update_item_dirty_state(
 5009        &mut self,
 5010        item: &dyn ItemHandle,
 5011        window: &mut Window,
 5012        cx: &mut App,
 5013    ) {
 5014        let is_dirty = item.is_dirty(cx);
 5015        let item_id = item.item_id();
 5016        let was_dirty = self.dirty_items.contains_key(&item_id);
 5017        if is_dirty == was_dirty {
 5018            return;
 5019        }
 5020        if was_dirty {
 5021            self.dirty_items.remove(&item_id);
 5022            self.update_window_edited(window, cx);
 5023            return;
 5024        }
 5025        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 5026            let s = item.on_release(
 5027                cx,
 5028                Box::new(move |cx| {
 5029                    window_handle
 5030                        .update(cx, |this, window, cx| {
 5031                            this.dirty_items.remove(&item_id);
 5032                            this.update_window_edited(window, cx)
 5033                        })
 5034                        .ok();
 5035                }),
 5036            );
 5037            self.dirty_items.insert(item_id, s);
 5038            self.update_window_edited(window, cx);
 5039        }
 5040    }
 5041
 5042    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5043        if self.notifications.is_empty() {
 5044            None
 5045        } else {
 5046            Some(
 5047                div()
 5048                    .absolute()
 5049                    .right_3()
 5050                    .bottom_3()
 5051                    .w_112()
 5052                    .h_full()
 5053                    .flex()
 5054                    .flex_col()
 5055                    .justify_end()
 5056                    .gap_2()
 5057                    .children(
 5058                        self.notifications
 5059                            .iter()
 5060                            .map(|(_, notification)| notification.clone().into_any()),
 5061                    ),
 5062            )
 5063        }
 5064    }
 5065
 5066    // RPC handlers
 5067
 5068    fn active_view_for_follower(
 5069        &self,
 5070        follower_project_id: Option<u64>,
 5071        window: &mut Window,
 5072        cx: &mut Context<Self>,
 5073    ) -> Option<proto::View> {
 5074        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5075        let item = item?;
 5076        let leader_id = self
 5077            .pane_for(&*item)
 5078            .and_then(|pane| self.leader_for_pane(&pane));
 5079        let leader_peer_id = match leader_id {
 5080            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5081            Some(CollaboratorId::Agent) | None => None,
 5082        };
 5083
 5084        let item_handle = item.to_followable_item_handle(cx)?;
 5085        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5086        let variant = item_handle.to_state_proto(window, cx)?;
 5087
 5088        if item_handle.is_project_item(window, cx)
 5089            && (follower_project_id.is_none()
 5090                || follower_project_id != self.project.read(cx).remote_id())
 5091        {
 5092            return None;
 5093        }
 5094
 5095        Some(proto::View {
 5096            id: id.to_proto(),
 5097            leader_id: leader_peer_id,
 5098            variant: Some(variant),
 5099            panel_id: panel_id.map(|id| id as i32),
 5100        })
 5101    }
 5102
 5103    fn handle_follow(
 5104        &mut self,
 5105        follower_project_id: Option<u64>,
 5106        window: &mut Window,
 5107        cx: &mut Context<Self>,
 5108    ) -> proto::FollowResponse {
 5109        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5110
 5111        cx.notify();
 5112        proto::FollowResponse {
 5113            views: active_view.iter().cloned().collect(),
 5114            active_view,
 5115        }
 5116    }
 5117
 5118    fn handle_update_followers(
 5119        &mut self,
 5120        leader_id: PeerId,
 5121        message: proto::UpdateFollowers,
 5122        _window: &mut Window,
 5123        _cx: &mut Context<Self>,
 5124    ) {
 5125        self.leader_updates_tx
 5126            .unbounded_send((leader_id, message))
 5127            .ok();
 5128    }
 5129
 5130    async fn process_leader_update(
 5131        this: &WeakEntity<Self>,
 5132        leader_id: PeerId,
 5133        update: proto::UpdateFollowers,
 5134        cx: &mut AsyncWindowContext,
 5135    ) -> Result<()> {
 5136        match update.variant.context("invalid update")? {
 5137            proto::update_followers::Variant::CreateView(view) => {
 5138                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5139                let should_add_view = this.update(cx, |this, _| {
 5140                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5141                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5142                    } else {
 5143                        anyhow::Ok(false)
 5144                    }
 5145                })??;
 5146
 5147                if should_add_view {
 5148                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5149                }
 5150            }
 5151            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5152                let should_add_view = this.update(cx, |this, _| {
 5153                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5154                        state.active_view_id = update_active_view
 5155                            .view
 5156                            .as_ref()
 5157                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5158
 5159                        if state.active_view_id.is_some_and(|view_id| {
 5160                            !state.items_by_leader_view_id.contains_key(&view_id)
 5161                        }) {
 5162                            anyhow::Ok(true)
 5163                        } else {
 5164                            anyhow::Ok(false)
 5165                        }
 5166                    } else {
 5167                        anyhow::Ok(false)
 5168                    }
 5169                })??;
 5170
 5171                if should_add_view && let Some(view) = update_active_view.view {
 5172                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5173                }
 5174            }
 5175            proto::update_followers::Variant::UpdateView(update_view) => {
 5176                let variant = update_view.variant.context("missing update view variant")?;
 5177                let id = update_view.id.context("missing update view id")?;
 5178                let mut tasks = Vec::new();
 5179                this.update_in(cx, |this, window, cx| {
 5180                    let project = this.project.clone();
 5181                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5182                        let view_id = ViewId::from_proto(id.clone())?;
 5183                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5184                            tasks.push(item.view.apply_update_proto(
 5185                                &project,
 5186                                variant.clone(),
 5187                                window,
 5188                                cx,
 5189                            ));
 5190                        }
 5191                    }
 5192                    anyhow::Ok(())
 5193                })??;
 5194                try_join_all(tasks).await.log_err();
 5195            }
 5196        }
 5197        this.update_in(cx, |this, window, cx| {
 5198            this.leader_updated(leader_id, window, cx)
 5199        })?;
 5200        Ok(())
 5201    }
 5202
 5203    async fn add_view_from_leader(
 5204        this: WeakEntity<Self>,
 5205        leader_id: PeerId,
 5206        view: &proto::View,
 5207        cx: &mut AsyncWindowContext,
 5208    ) -> Result<()> {
 5209        let this = this.upgrade().context("workspace dropped")?;
 5210
 5211        let Some(id) = view.id.clone() else {
 5212            anyhow::bail!("no id for view");
 5213        };
 5214        let id = ViewId::from_proto(id)?;
 5215        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5216
 5217        let pane = this.update(cx, |this, _cx| {
 5218            let state = this
 5219                .follower_states
 5220                .get(&leader_id.into())
 5221                .context("stopped following")?;
 5222            anyhow::Ok(state.pane().clone())
 5223        })?;
 5224        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5225            let client = this.read(cx).client().clone();
 5226            pane.items().find_map(|item| {
 5227                let item = item.to_followable_item_handle(cx)?;
 5228                if item.remote_id(&client, window, cx) == Some(id) {
 5229                    Some(item)
 5230                } else {
 5231                    None
 5232                }
 5233            })
 5234        })?;
 5235        let item = if let Some(existing_item) = existing_item {
 5236            existing_item
 5237        } else {
 5238            let variant = view.variant.clone();
 5239            anyhow::ensure!(variant.is_some(), "missing view variant");
 5240
 5241            let task = cx.update(|window, cx| {
 5242                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5243            })?;
 5244
 5245            let Some(task) = task else {
 5246                anyhow::bail!(
 5247                    "failed to construct view from leader (maybe from a different version of zed?)"
 5248                );
 5249            };
 5250
 5251            let mut new_item = task.await?;
 5252            pane.update_in(cx, |pane, window, cx| {
 5253                let mut item_to_remove = None;
 5254                for (ix, item) in pane.items().enumerate() {
 5255                    if let Some(item) = item.to_followable_item_handle(cx) {
 5256                        match new_item.dedup(item.as_ref(), window, cx) {
 5257                            Some(item::Dedup::KeepExisting) => {
 5258                                new_item =
 5259                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5260                                break;
 5261                            }
 5262                            Some(item::Dedup::ReplaceExisting) => {
 5263                                item_to_remove = Some((ix, item.item_id()));
 5264                                break;
 5265                            }
 5266                            None => {}
 5267                        }
 5268                    }
 5269                }
 5270
 5271                if let Some((ix, id)) = item_to_remove {
 5272                    pane.remove_item(id, false, false, window, cx);
 5273                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5274                }
 5275            })?;
 5276
 5277            new_item
 5278        };
 5279
 5280        this.update_in(cx, |this, window, cx| {
 5281            let state = this.follower_states.get_mut(&leader_id.into())?;
 5282            item.set_leader_id(Some(leader_id.into()), window, cx);
 5283            state.items_by_leader_view_id.insert(
 5284                id,
 5285                FollowerView {
 5286                    view: item,
 5287                    location: panel_id,
 5288                },
 5289            );
 5290
 5291            Some(())
 5292        })
 5293        .context("no follower state")?;
 5294
 5295        Ok(())
 5296    }
 5297
 5298    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5299        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5300            return;
 5301        };
 5302
 5303        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5304            let buffer_entity_id = agent_location.buffer.entity_id();
 5305            let view_id = ViewId {
 5306                creator: CollaboratorId::Agent,
 5307                id: buffer_entity_id.as_u64(),
 5308            };
 5309            follower_state.active_view_id = Some(view_id);
 5310
 5311            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5312                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5313                hash_map::Entry::Vacant(entry) => {
 5314                    let existing_view =
 5315                        follower_state
 5316                            .center_pane
 5317                            .read(cx)
 5318                            .items()
 5319                            .find_map(|item| {
 5320                                let item = item.to_followable_item_handle(cx)?;
 5321                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5322                                    && item.project_item_model_ids(cx).as_slice()
 5323                                        == [buffer_entity_id]
 5324                                {
 5325                                    Some(item)
 5326                                } else {
 5327                                    None
 5328                                }
 5329                            });
 5330                    let view = existing_view.or_else(|| {
 5331                        agent_location.buffer.upgrade().and_then(|buffer| {
 5332                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5333                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5334                            })?
 5335                            .to_followable_item_handle(cx)
 5336                        })
 5337                    });
 5338
 5339                    view.map(|view| {
 5340                        entry.insert(FollowerView {
 5341                            view,
 5342                            location: None,
 5343                        })
 5344                    })
 5345                }
 5346            };
 5347
 5348            if let Some(item) = item {
 5349                item.view
 5350                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5351                item.view
 5352                    .update_agent_location(agent_location.position, window, cx);
 5353            }
 5354        } else {
 5355            follower_state.active_view_id = None;
 5356        }
 5357
 5358        self.leader_updated(CollaboratorId::Agent, window, cx);
 5359    }
 5360
 5361    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5362        let mut is_project_item = true;
 5363        let mut update = proto::UpdateActiveView::default();
 5364        if window.is_window_active() {
 5365            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5366
 5367            if let Some(item) = active_item
 5368                && item.item_focus_handle(cx).contains_focused(window, cx)
 5369            {
 5370                let leader_id = self
 5371                    .pane_for(&*item)
 5372                    .and_then(|pane| self.leader_for_pane(&pane));
 5373                let leader_peer_id = match leader_id {
 5374                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5375                    Some(CollaboratorId::Agent) | None => None,
 5376                };
 5377
 5378                if let Some(item) = item.to_followable_item_handle(cx) {
 5379                    let id = item
 5380                        .remote_id(&self.app_state.client, window, cx)
 5381                        .map(|id| id.to_proto());
 5382
 5383                    if let Some(id) = id
 5384                        && let Some(variant) = item.to_state_proto(window, cx)
 5385                    {
 5386                        let view = Some(proto::View {
 5387                            id,
 5388                            leader_id: leader_peer_id,
 5389                            variant: Some(variant),
 5390                            panel_id: panel_id.map(|id| id as i32),
 5391                        });
 5392
 5393                        is_project_item = item.is_project_item(window, cx);
 5394                        update = proto::UpdateActiveView { view };
 5395                    };
 5396                }
 5397            }
 5398        }
 5399
 5400        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5401        if active_view_id != self.last_active_view_id.as_ref() {
 5402            self.last_active_view_id = active_view_id.cloned();
 5403            self.update_followers(
 5404                is_project_item,
 5405                proto::update_followers::Variant::UpdateActiveView(update),
 5406                window,
 5407                cx,
 5408            );
 5409        }
 5410    }
 5411
 5412    fn active_item_for_followers(
 5413        &self,
 5414        window: &mut Window,
 5415        cx: &mut App,
 5416    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5417        let mut active_item = None;
 5418        let mut panel_id = None;
 5419        for dock in self.all_docks() {
 5420            if dock.focus_handle(cx).contains_focused(window, cx)
 5421                && let Some(panel) = dock.read(cx).active_panel()
 5422                && let Some(pane) = panel.pane(cx)
 5423                && let Some(item) = pane.read(cx).active_item()
 5424            {
 5425                active_item = Some(item);
 5426                panel_id = panel.remote_id();
 5427                break;
 5428            }
 5429        }
 5430
 5431        if active_item.is_none() {
 5432            active_item = self.active_pane().read(cx).active_item();
 5433        }
 5434        (active_item, panel_id)
 5435    }
 5436
 5437    fn update_followers(
 5438        &self,
 5439        project_only: bool,
 5440        update: proto::update_followers::Variant,
 5441        _: &mut Window,
 5442        cx: &mut App,
 5443    ) -> Option<()> {
 5444        // If this update only applies to for followers in the current project,
 5445        // then skip it unless this project is shared. If it applies to all
 5446        // followers, regardless of project, then set `project_id` to none,
 5447        // indicating that it goes to all followers.
 5448        let project_id = if project_only {
 5449            Some(self.project.read(cx).remote_id()?)
 5450        } else {
 5451            None
 5452        };
 5453        self.app_state().workspace_store.update(cx, |store, cx| {
 5454            store.update_followers(project_id, update, cx)
 5455        })
 5456    }
 5457
 5458    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5459        self.follower_states.iter().find_map(|(leader_id, state)| {
 5460            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5461                Some(*leader_id)
 5462            } else {
 5463                None
 5464            }
 5465        })
 5466    }
 5467
 5468    fn leader_updated(
 5469        &mut self,
 5470        leader_id: impl Into<CollaboratorId>,
 5471        window: &mut Window,
 5472        cx: &mut Context<Self>,
 5473    ) -> Option<Box<dyn ItemHandle>> {
 5474        cx.notify();
 5475
 5476        let leader_id = leader_id.into();
 5477        let (panel_id, item) = match leader_id {
 5478            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5479            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5480        };
 5481
 5482        let state = self.follower_states.get(&leader_id)?;
 5483        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5484        let pane;
 5485        if let Some(panel_id) = panel_id {
 5486            pane = self
 5487                .activate_panel_for_proto_id(panel_id, window, cx)?
 5488                .pane(cx)?;
 5489            let state = self.follower_states.get_mut(&leader_id)?;
 5490            state.dock_pane = Some(pane.clone());
 5491        } else {
 5492            pane = state.center_pane.clone();
 5493            let state = self.follower_states.get_mut(&leader_id)?;
 5494            if let Some(dock_pane) = state.dock_pane.take() {
 5495                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5496            }
 5497        }
 5498
 5499        pane.update(cx, |pane, cx| {
 5500            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5501            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5502                pane.activate_item(index, false, false, window, cx);
 5503            } else {
 5504                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5505            }
 5506
 5507            if focus_active_item {
 5508                pane.focus_active_item(window, cx)
 5509            }
 5510        });
 5511
 5512        Some(item)
 5513    }
 5514
 5515    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5516        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5517        let active_view_id = state.active_view_id?;
 5518        Some(
 5519            state
 5520                .items_by_leader_view_id
 5521                .get(&active_view_id)?
 5522                .view
 5523                .boxed_clone(),
 5524        )
 5525    }
 5526
 5527    fn active_item_for_peer(
 5528        &self,
 5529        peer_id: PeerId,
 5530        window: &mut Window,
 5531        cx: &mut Context<Self>,
 5532    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5533        let call = self.active_call()?;
 5534        let room = call.read(cx).room()?.read(cx);
 5535        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5536        let leader_in_this_app;
 5537        let leader_in_this_project;
 5538        match participant.location {
 5539            call::ParticipantLocation::SharedProject { project_id } => {
 5540                leader_in_this_app = true;
 5541                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5542            }
 5543            call::ParticipantLocation::UnsharedProject => {
 5544                leader_in_this_app = true;
 5545                leader_in_this_project = false;
 5546            }
 5547            call::ParticipantLocation::External => {
 5548                leader_in_this_app = false;
 5549                leader_in_this_project = false;
 5550            }
 5551        };
 5552        let state = self.follower_states.get(&peer_id.into())?;
 5553        let mut item_to_activate = None;
 5554        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5555            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5556                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5557            {
 5558                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5559            }
 5560        } else if let Some(shared_screen) =
 5561            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5562        {
 5563            item_to_activate = Some((None, Box::new(shared_screen)));
 5564        }
 5565        item_to_activate
 5566    }
 5567
 5568    fn shared_screen_for_peer(
 5569        &self,
 5570        peer_id: PeerId,
 5571        pane: &Entity<Pane>,
 5572        window: &mut Window,
 5573        cx: &mut App,
 5574    ) -> Option<Entity<SharedScreen>> {
 5575        let call = self.active_call()?;
 5576        let room = call.read(cx).room()?.clone();
 5577        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5578        let track = participant.video_tracks.values().next()?.clone();
 5579        let user = participant.user.clone();
 5580
 5581        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5582            if item.read(cx).peer_id == peer_id {
 5583                return Some(item);
 5584            }
 5585        }
 5586
 5587        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5588    }
 5589
 5590    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5591        if window.is_window_active() {
 5592            self.update_active_view_for_followers(window, cx);
 5593
 5594            if let Some(database_id) = self.database_id {
 5595                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5596                    .detach();
 5597            }
 5598        } else {
 5599            for pane in &self.panes {
 5600                pane.update(cx, |pane, cx| {
 5601                    if let Some(item) = pane.active_item() {
 5602                        item.workspace_deactivated(window, cx);
 5603                    }
 5604                    for item in pane.items() {
 5605                        if matches!(
 5606                            item.workspace_settings(cx).autosave,
 5607                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5608                        ) {
 5609                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5610                                .detach_and_log_err(cx);
 5611                        }
 5612                    }
 5613                });
 5614            }
 5615        }
 5616    }
 5617
 5618    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5619        self.active_call.as_ref().map(|(call, _)| call)
 5620    }
 5621
 5622    fn on_active_call_event(
 5623        &mut self,
 5624        _: &Entity<ActiveCall>,
 5625        event: &call::room::Event,
 5626        window: &mut Window,
 5627        cx: &mut Context<Self>,
 5628    ) {
 5629        match event {
 5630            call::room::Event::ParticipantLocationChanged { participant_id }
 5631            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5632                self.leader_updated(participant_id, window, cx);
 5633            }
 5634            _ => {}
 5635        }
 5636    }
 5637
 5638    pub fn database_id(&self) -> Option<WorkspaceId> {
 5639        self.database_id
 5640    }
 5641
 5642    pub fn session_id(&self) -> Option<String> {
 5643        self.session_id.clone()
 5644    }
 5645
 5646    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5647        let project = self.project().read(cx);
 5648        project
 5649            .visible_worktrees(cx)
 5650            .map(|worktree| worktree.read(cx).abs_path())
 5651            .collect::<Vec<_>>()
 5652    }
 5653
 5654    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5655        match member {
 5656            Member::Axis(PaneAxis { members, .. }) => {
 5657                for child in members.iter() {
 5658                    self.remove_panes(child.clone(), window, cx)
 5659                }
 5660            }
 5661            Member::Pane(pane) => {
 5662                self.force_remove_pane(&pane, &None, window, cx);
 5663            }
 5664        }
 5665    }
 5666
 5667    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5668        self.session_id.take();
 5669        self.serialize_workspace_internal(window, cx)
 5670    }
 5671
 5672    fn force_remove_pane(
 5673        &mut self,
 5674        pane: &Entity<Pane>,
 5675        focus_on: &Option<Entity<Pane>>,
 5676        window: &mut Window,
 5677        cx: &mut Context<Workspace>,
 5678    ) {
 5679        self.panes.retain(|p| p != pane);
 5680        if let Some(focus_on) = focus_on {
 5681            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5682        } else if self.active_pane() == pane {
 5683            self.panes
 5684                .last()
 5685                .unwrap()
 5686                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5687        }
 5688        if self.last_active_center_pane == Some(pane.downgrade()) {
 5689            self.last_active_center_pane = None;
 5690        }
 5691        cx.notify();
 5692    }
 5693
 5694    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5695        if self._schedule_serialize_workspace.is_none() {
 5696            self._schedule_serialize_workspace =
 5697                Some(cx.spawn_in(window, async move |this, cx| {
 5698                    cx.background_executor()
 5699                        .timer(SERIALIZATION_THROTTLE_TIME)
 5700                        .await;
 5701                    this.update_in(cx, |this, window, cx| {
 5702                        this.serialize_workspace_internal(window, cx).detach();
 5703                        this._schedule_serialize_workspace.take();
 5704                    })
 5705                    .log_err();
 5706                }));
 5707        }
 5708    }
 5709
 5710    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5711        let Some(database_id) = self.database_id() else {
 5712            return Task::ready(());
 5713        };
 5714
 5715        fn serialize_pane_handle(
 5716            pane_handle: &Entity<Pane>,
 5717            window: &mut Window,
 5718            cx: &mut App,
 5719        ) -> SerializedPane {
 5720            let (items, active, pinned_count) = {
 5721                let pane = pane_handle.read(cx);
 5722                let active_item_id = pane.active_item().map(|item| item.item_id());
 5723                (
 5724                    pane.items()
 5725                        .filter_map(|handle| {
 5726                            let handle = handle.to_serializable_item_handle(cx)?;
 5727
 5728                            Some(SerializedItem {
 5729                                kind: Arc::from(handle.serialized_item_kind()),
 5730                                item_id: handle.item_id().as_u64(),
 5731                                active: Some(handle.item_id()) == active_item_id,
 5732                                preview: pane.is_active_preview_item(handle.item_id()),
 5733                            })
 5734                        })
 5735                        .collect::<Vec<_>>(),
 5736                    pane.has_focus(window, cx),
 5737                    pane.pinned_count(),
 5738                )
 5739            };
 5740
 5741            SerializedPane::new(items, active, pinned_count)
 5742        }
 5743
 5744        fn build_serialized_pane_group(
 5745            pane_group: &Member,
 5746            window: &mut Window,
 5747            cx: &mut App,
 5748        ) -> SerializedPaneGroup {
 5749            match pane_group {
 5750                Member::Axis(PaneAxis {
 5751                    axis,
 5752                    members,
 5753                    flexes,
 5754                    bounding_boxes: _,
 5755                }) => SerializedPaneGroup::Group {
 5756                    axis: SerializedAxis(*axis),
 5757                    children: members
 5758                        .iter()
 5759                        .map(|member| build_serialized_pane_group(member, window, cx))
 5760                        .collect::<Vec<_>>(),
 5761                    flexes: Some(flexes.lock().clone()),
 5762                },
 5763                Member::Pane(pane_handle) => {
 5764                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5765                }
 5766            }
 5767        }
 5768
 5769        fn build_serialized_docks(
 5770            this: &Workspace,
 5771            window: &mut Window,
 5772            cx: &mut App,
 5773        ) -> DockStructure {
 5774            let left_dock = this.left_dock.read(cx);
 5775            let left_visible = left_dock.is_open();
 5776            let left_active_panel = left_dock
 5777                .active_panel()
 5778                .map(|panel| panel.persistent_name().to_string());
 5779            let left_dock_zoom = left_dock
 5780                .active_panel()
 5781                .map(|panel| panel.is_zoomed(window, cx))
 5782                .unwrap_or(false);
 5783
 5784            let right_dock = this.right_dock.read(cx);
 5785            let right_visible = right_dock.is_open();
 5786            let right_active_panel = right_dock
 5787                .active_panel()
 5788                .map(|panel| panel.persistent_name().to_string());
 5789            let right_dock_zoom = right_dock
 5790                .active_panel()
 5791                .map(|panel| panel.is_zoomed(window, cx))
 5792                .unwrap_or(false);
 5793
 5794            let bottom_dock = this.bottom_dock.read(cx);
 5795            let bottom_visible = bottom_dock.is_open();
 5796            let bottom_active_panel = bottom_dock
 5797                .active_panel()
 5798                .map(|panel| panel.persistent_name().to_string());
 5799            let bottom_dock_zoom = bottom_dock
 5800                .active_panel()
 5801                .map(|panel| panel.is_zoomed(window, cx))
 5802                .unwrap_or(false);
 5803
 5804            DockStructure {
 5805                left: DockData {
 5806                    visible: left_visible,
 5807                    active_panel: left_active_panel,
 5808                    zoom: left_dock_zoom,
 5809                },
 5810                right: DockData {
 5811                    visible: right_visible,
 5812                    active_panel: right_active_panel,
 5813                    zoom: right_dock_zoom,
 5814                },
 5815                bottom: DockData {
 5816                    visible: bottom_visible,
 5817                    active_panel: bottom_active_panel,
 5818                    zoom: bottom_dock_zoom,
 5819                },
 5820            }
 5821        }
 5822
 5823        match self.serialize_workspace_location(cx) {
 5824            WorkspaceLocation::Location(location, paths) => {
 5825                let breakpoints = self.project.update(cx, |project, cx| {
 5826                    project
 5827                        .breakpoint_store()
 5828                        .read(cx)
 5829                        .all_source_breakpoints(cx)
 5830                });
 5831                let user_toolchains = self
 5832                    .project
 5833                    .read(cx)
 5834                    .user_toolchains(cx)
 5835                    .unwrap_or_default();
 5836
 5837                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5838                let docks = build_serialized_docks(self, window, cx);
 5839                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5840
 5841                let serialized_workspace = SerializedWorkspace {
 5842                    id: database_id,
 5843                    location,
 5844                    paths,
 5845                    center_group,
 5846                    window_bounds,
 5847                    display: Default::default(),
 5848                    docks,
 5849                    centered_layout: self.centered_layout,
 5850                    session_id: self.session_id.clone(),
 5851                    breakpoints,
 5852                    window_id: Some(window.window_handle().window_id().as_u64()),
 5853                    user_toolchains,
 5854                };
 5855
 5856                window.spawn(cx, async move |_| {
 5857                    persistence::DB.save_workspace(serialized_workspace).await;
 5858                })
 5859            }
 5860            WorkspaceLocation::DetachFromSession => {
 5861                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5862                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5863                window.spawn(cx, async move |_| {
 5864                    persistence::DB
 5865                        .set_window_open_status(
 5866                            database_id,
 5867                            window_bounds,
 5868                            display.unwrap_or_default(),
 5869                        )
 5870                        .await
 5871                        .log_err();
 5872                    persistence::DB
 5873                        .set_session_id(database_id, None)
 5874                        .await
 5875                        .log_err();
 5876                })
 5877            }
 5878            WorkspaceLocation::None => Task::ready(()),
 5879        }
 5880    }
 5881
 5882    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5883        let paths = PathList::new(&self.root_paths(cx));
 5884        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5885            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5886        } else if self.project.read(cx).is_local() {
 5887            if !paths.is_empty() {
 5888                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5889            } else {
 5890                WorkspaceLocation::DetachFromSession
 5891            }
 5892        } else {
 5893            WorkspaceLocation::None
 5894        }
 5895    }
 5896
 5897    fn update_history(&self, cx: &mut App) {
 5898        let Some(id) = self.database_id() else {
 5899            return;
 5900        };
 5901        if !self.project.read(cx).is_local() {
 5902            return;
 5903        }
 5904        if let Some(manager) = HistoryManager::global(cx) {
 5905            let paths = PathList::new(&self.root_paths(cx));
 5906            manager.update(cx, |this, cx| {
 5907                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5908            });
 5909        }
 5910    }
 5911
 5912    async fn serialize_items(
 5913        this: &WeakEntity<Self>,
 5914        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5915        cx: &mut AsyncWindowContext,
 5916    ) -> Result<()> {
 5917        const CHUNK_SIZE: usize = 200;
 5918
 5919        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5920
 5921        while let Some(items_received) = serializable_items.next().await {
 5922            let unique_items =
 5923                items_received
 5924                    .into_iter()
 5925                    .fold(HashMap::default(), |mut acc, item| {
 5926                        acc.entry(item.item_id()).or_insert(item);
 5927                        acc
 5928                    });
 5929
 5930            // We use into_iter() here so that the references to the items are moved into
 5931            // the tasks and not kept alive while we're sleeping.
 5932            for (_, item) in unique_items.into_iter() {
 5933                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5934                    item.serialize(workspace, false, window, cx)
 5935                }) {
 5936                    cx.background_spawn(async move { task.await.log_err() })
 5937                        .detach();
 5938                }
 5939            }
 5940
 5941            cx.background_executor()
 5942                .timer(SERIALIZATION_THROTTLE_TIME)
 5943                .await;
 5944        }
 5945
 5946        Ok(())
 5947    }
 5948
 5949    pub(crate) fn enqueue_item_serialization(
 5950        &mut self,
 5951        item: Box<dyn SerializableItemHandle>,
 5952    ) -> Result<()> {
 5953        self.serializable_items_tx
 5954            .unbounded_send(item)
 5955            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5956    }
 5957
 5958    pub(crate) fn load_workspace(
 5959        serialized_workspace: SerializedWorkspace,
 5960        paths_to_open: Vec<Option<ProjectPath>>,
 5961        window: &mut Window,
 5962        cx: &mut Context<Workspace>,
 5963    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5964        cx.spawn_in(window, async move |workspace, cx| {
 5965            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5966
 5967            let mut center_group = None;
 5968            let mut center_items = None;
 5969
 5970            // Traverse the splits tree and add to things
 5971            if let Some((group, active_pane, items)) = serialized_workspace
 5972                .center_group
 5973                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5974                .await
 5975            {
 5976                center_items = Some(items);
 5977                center_group = Some((group, active_pane))
 5978            }
 5979
 5980            let mut items_by_project_path = HashMap::default();
 5981            let mut item_ids_by_kind = HashMap::default();
 5982            let mut all_deserialized_items = Vec::default();
 5983            cx.update(|_, cx| {
 5984                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5985                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5986                        item_ids_by_kind
 5987                            .entry(serializable_item_handle.serialized_item_kind())
 5988                            .or_insert(Vec::new())
 5989                            .push(item.item_id().as_u64() as ItemId);
 5990                    }
 5991
 5992                    if let Some(project_path) = item.project_path(cx) {
 5993                        items_by_project_path.insert(project_path, item.clone());
 5994                    }
 5995                    all_deserialized_items.push(item);
 5996                }
 5997            })?;
 5998
 5999            let opened_items = paths_to_open
 6000                .into_iter()
 6001                .map(|path_to_open| {
 6002                    path_to_open
 6003                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6004                })
 6005                .collect::<Vec<_>>();
 6006
 6007            // Remove old panes from workspace panes list
 6008            workspace.update_in(cx, |workspace, window, cx| {
 6009                if let Some((center_group, active_pane)) = center_group {
 6010                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6011
 6012                    // Swap workspace center group
 6013                    workspace.center = PaneGroup::with_root(center_group);
 6014                    workspace.center.set_is_center(true);
 6015                    workspace.center.mark_positions(cx);
 6016
 6017                    if let Some(active_pane) = active_pane {
 6018                        workspace.set_active_pane(&active_pane, window, cx);
 6019                        cx.focus_self(window);
 6020                    } else {
 6021                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6022                    }
 6023                }
 6024
 6025                let docks = serialized_workspace.docks;
 6026
 6027                for (dock, serialized_dock) in [
 6028                    (&mut workspace.right_dock, docks.right),
 6029                    (&mut workspace.left_dock, docks.left),
 6030                    (&mut workspace.bottom_dock, docks.bottom),
 6031                ]
 6032                .iter_mut()
 6033                {
 6034                    dock.update(cx, |dock, cx| {
 6035                        dock.serialized_dock = Some(serialized_dock.clone());
 6036                        dock.restore_state(window, cx);
 6037                    });
 6038                }
 6039
 6040                cx.notify();
 6041            })?;
 6042
 6043            let _ = project
 6044                .update(cx, |project, cx| {
 6045                    project
 6046                        .breakpoint_store()
 6047                        .update(cx, |breakpoint_store, cx| {
 6048                            breakpoint_store
 6049                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6050                        })
 6051                })
 6052                .await;
 6053
 6054            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6055            // after loading the items, we might have different items and in order to avoid
 6056            // the database filling up, we delete items that haven't been loaded now.
 6057            //
 6058            // The items that have been loaded, have been saved after they've been added to the workspace.
 6059            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6060                item_ids_by_kind
 6061                    .into_iter()
 6062                    .map(|(item_kind, loaded_items)| {
 6063                        SerializableItemRegistry::cleanup(
 6064                            item_kind,
 6065                            serialized_workspace.id,
 6066                            loaded_items,
 6067                            window,
 6068                            cx,
 6069                        )
 6070                        .log_err()
 6071                    })
 6072                    .collect::<Vec<_>>()
 6073            })?;
 6074
 6075            futures::future::join_all(clean_up_tasks).await;
 6076
 6077            workspace
 6078                .update_in(cx, |workspace, window, cx| {
 6079                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6080                    workspace.serialize_workspace_internal(window, cx).detach();
 6081
 6082                    // Ensure that we mark the window as edited if we did load dirty items
 6083                    workspace.update_window_edited(window, cx);
 6084                })
 6085                .ok();
 6086
 6087            Ok(opened_items)
 6088        })
 6089    }
 6090
 6091    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6092        self.add_workspace_actions_listeners(div, window, cx)
 6093            .on_action(cx.listener(
 6094                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6095                    for action in &action_sequence.0 {
 6096                        window.dispatch_action(action.boxed_clone(), cx);
 6097                    }
 6098                },
 6099            ))
 6100            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6101            .on_action(cx.listener(Self::close_all_items_and_panes))
 6102            .on_action(cx.listener(Self::save_all))
 6103            .on_action(cx.listener(Self::send_keystrokes))
 6104            .on_action(cx.listener(Self::add_folder_to_project))
 6105            .on_action(cx.listener(Self::follow_next_collaborator))
 6106            .on_action(cx.listener(Self::close_window))
 6107            .on_action(cx.listener(Self::activate_pane_at_index))
 6108            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6109            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6110            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6111            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6112                let pane = workspace.active_pane().clone();
 6113                workspace.unfollow_in_pane(&pane, window, cx);
 6114            }))
 6115            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6116                workspace
 6117                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6118                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6119            }))
 6120            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6121                workspace
 6122                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6123                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6124            }))
 6125            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6126                workspace
 6127                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6128                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6129            }))
 6130            .on_action(
 6131                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6132                    workspace.activate_previous_pane(window, cx)
 6133                }),
 6134            )
 6135            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6136                workspace.activate_next_pane(window, cx)
 6137            }))
 6138            .on_action(
 6139                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6140                    workspace.activate_next_window(cx)
 6141                }),
 6142            )
 6143            .on_action(
 6144                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6145                    workspace.activate_previous_window(cx)
 6146                }),
 6147            )
 6148            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6149                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6150            }))
 6151            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6152                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6153            }))
 6154            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6155                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6156            }))
 6157            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6158                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6159            }))
 6160            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6161                workspace.activate_next_pane(window, cx)
 6162            }))
 6163            .on_action(cx.listener(
 6164                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6165                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6166                },
 6167            ))
 6168            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6169                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6170            }))
 6171            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6172                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6173            }))
 6174            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6175                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6176            }))
 6177            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6178                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6179            }))
 6180            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6181                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6182                    SplitDirection::Down,
 6183                    SplitDirection::Up,
 6184                    SplitDirection::Right,
 6185                    SplitDirection::Left,
 6186                ];
 6187                for dir in DIRECTION_PRIORITY {
 6188                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6189                        workspace.swap_pane_in_direction(dir, cx);
 6190                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6191                        break;
 6192                    }
 6193                }
 6194            }))
 6195            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6196                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6197            }))
 6198            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6199                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6200            }))
 6201            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6202                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6203            }))
 6204            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6205                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6206            }))
 6207            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6208                this.toggle_dock(DockPosition::Left, window, cx);
 6209            }))
 6210            .on_action(cx.listener(
 6211                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6212                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6213                },
 6214            ))
 6215            .on_action(cx.listener(
 6216                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6217                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6218                },
 6219            ))
 6220            .on_action(cx.listener(
 6221                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6222                    if !workspace.close_active_dock(window, cx) {
 6223                        cx.propagate();
 6224                    }
 6225                },
 6226            ))
 6227            .on_action(
 6228                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6229                    workspace.close_all_docks(window, cx);
 6230                }),
 6231            )
 6232            .on_action(cx.listener(Self::toggle_all_docks))
 6233            .on_action(cx.listener(
 6234                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6235                    workspace.clear_all_notifications(cx);
 6236                },
 6237            ))
 6238            .on_action(cx.listener(
 6239                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6240                    workspace.clear_navigation_history(window, cx);
 6241                },
 6242            ))
 6243            .on_action(cx.listener(
 6244                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6245                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6246                        workspace.suppress_notification(&notification_id, cx);
 6247                    }
 6248                },
 6249            ))
 6250            .on_action(cx.listener(
 6251                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6252                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6253                },
 6254            ))
 6255            .on_action(
 6256                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6257                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6258                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6259                            trusted_worktrees.clear_trusted_paths()
 6260                        });
 6261                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6262                        cx.spawn(async move |_, cx| {
 6263                            if clear_task.await.log_err().is_some() {
 6264                                cx.update(|cx| reload(cx));
 6265                            }
 6266                        })
 6267                        .detach();
 6268                    }
 6269                }),
 6270            )
 6271            .on_action(cx.listener(
 6272                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6273                    workspace.reopen_closed_item(window, cx).detach();
 6274                },
 6275            ))
 6276            .on_action(cx.listener(
 6277                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6278                    for dock in workspace.all_docks() {
 6279                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6280                            let Some(panel) = dock.read(cx).active_panel() else {
 6281                                return;
 6282                            };
 6283
 6284                            // Set to `None`, then the size will fall back to the default.
 6285                            panel.clone().set_size(None, window, cx);
 6286
 6287                            return;
 6288                        }
 6289                    }
 6290                },
 6291            ))
 6292            .on_action(cx.listener(
 6293                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6294                    for dock in workspace.all_docks() {
 6295                        if let Some(panel) = dock.read(cx).visible_panel() {
 6296                            // Set to `None`, then the size will fall back to the default.
 6297                            panel.clone().set_size(None, window, cx);
 6298                        }
 6299                    }
 6300                },
 6301            ))
 6302            .on_action(cx.listener(
 6303                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6304                    adjust_active_dock_size_by_px(
 6305                        px_with_ui_font_fallback(act.px, cx),
 6306                        workspace,
 6307                        window,
 6308                        cx,
 6309                    );
 6310                },
 6311            ))
 6312            .on_action(cx.listener(
 6313                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6314                    adjust_active_dock_size_by_px(
 6315                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6316                        workspace,
 6317                        window,
 6318                        cx,
 6319                    );
 6320                },
 6321            ))
 6322            .on_action(cx.listener(
 6323                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6324                    adjust_open_docks_size_by_px(
 6325                        px_with_ui_font_fallback(act.px, cx),
 6326                        workspace,
 6327                        window,
 6328                        cx,
 6329                    );
 6330                },
 6331            ))
 6332            .on_action(cx.listener(
 6333                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6334                    adjust_open_docks_size_by_px(
 6335                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6336                        workspace,
 6337                        window,
 6338                        cx,
 6339                    );
 6340                },
 6341            ))
 6342            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6343            .on_action(cx.listener(
 6344                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6345                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6346                        let dock = active_dock.read(cx);
 6347                        if let Some(active_panel) = dock.active_panel() {
 6348                            if active_panel.pane(cx).is_none() {
 6349                                let mut recent_pane: Option<Entity<Pane>> = None;
 6350                                let mut recent_timestamp = 0;
 6351                                for pane_handle in workspace.panes() {
 6352                                    let pane = pane_handle.read(cx);
 6353                                    for entry in pane.activation_history() {
 6354                                        if entry.timestamp > recent_timestamp {
 6355                                            recent_timestamp = entry.timestamp;
 6356                                            recent_pane = Some(pane_handle.clone());
 6357                                        }
 6358                                    }
 6359                                }
 6360
 6361                                if let Some(pane) = recent_pane {
 6362                                    pane.update(cx, |pane, cx| {
 6363                                        let current_index = pane.active_item_index();
 6364                                        let items_len = pane.items_len();
 6365                                        if items_len > 0 {
 6366                                            let next_index = if current_index + 1 < items_len {
 6367                                                current_index + 1
 6368                                            } else {
 6369                                                0
 6370                                            };
 6371                                            pane.activate_item(
 6372                                                next_index, false, false, window, cx,
 6373                                            );
 6374                                        }
 6375                                    });
 6376                                    return;
 6377                                }
 6378                            }
 6379                        }
 6380                    }
 6381                    cx.propagate();
 6382                },
 6383            ))
 6384            .on_action(cx.listener(
 6385                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6386                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6387                        let dock = active_dock.read(cx);
 6388                        if let Some(active_panel) = dock.active_panel() {
 6389                            if active_panel.pane(cx).is_none() {
 6390                                let mut recent_pane: Option<Entity<Pane>> = None;
 6391                                let mut recent_timestamp = 0;
 6392                                for pane_handle in workspace.panes() {
 6393                                    let pane = pane_handle.read(cx);
 6394                                    for entry in pane.activation_history() {
 6395                                        if entry.timestamp > recent_timestamp {
 6396                                            recent_timestamp = entry.timestamp;
 6397                                            recent_pane = Some(pane_handle.clone());
 6398                                        }
 6399                                    }
 6400                                }
 6401
 6402                                if let Some(pane) = recent_pane {
 6403                                    pane.update(cx, |pane, cx| {
 6404                                        let current_index = pane.active_item_index();
 6405                                        let items_len = pane.items_len();
 6406                                        if items_len > 0 {
 6407                                            let prev_index = if current_index > 0 {
 6408                                                current_index - 1
 6409                                            } else {
 6410                                                items_len.saturating_sub(1)
 6411                                            };
 6412                                            pane.activate_item(
 6413                                                prev_index, false, false, window, cx,
 6414                                            );
 6415                                        }
 6416                                    });
 6417                                    return;
 6418                                }
 6419                            }
 6420                        }
 6421                    }
 6422                    cx.propagate();
 6423                },
 6424            ))
 6425            .on_action(cx.listener(
 6426                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6427                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6428                        let dock = active_dock.read(cx);
 6429                        if let Some(active_panel) = dock.active_panel() {
 6430                            if active_panel.pane(cx).is_none() {
 6431                                let active_pane = workspace.active_pane().clone();
 6432                                active_pane.update(cx, |pane, cx| {
 6433                                    pane.close_active_item(action, window, cx)
 6434                                        .detach_and_log_err(cx);
 6435                                });
 6436                                return;
 6437                            }
 6438                        }
 6439                    }
 6440                    cx.propagate();
 6441                },
 6442            ))
 6443            .on_action(
 6444                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6445                    let pane = workspace.active_pane().clone();
 6446                    if let Some(item) = pane.read(cx).active_item() {
 6447                        item.toggle_read_only(window, cx);
 6448                    }
 6449                }),
 6450            )
 6451            .on_action(cx.listener(Workspace::cancel))
 6452    }
 6453
 6454    #[cfg(any(test, feature = "test-support"))]
 6455    pub fn set_random_database_id(&mut self) {
 6456        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6457    }
 6458
 6459    #[cfg(any(test, feature = "test-support"))]
 6460    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6461        use node_runtime::NodeRuntime;
 6462        use session::Session;
 6463
 6464        let client = project.read(cx).client();
 6465        let user_store = project.read(cx).user_store();
 6466        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6467        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6468        window.activate_window();
 6469        let app_state = Arc::new(AppState {
 6470            languages: project.read(cx).languages().clone(),
 6471            workspace_store,
 6472            client,
 6473            user_store,
 6474            fs: project.read(cx).fs().clone(),
 6475            build_window_options: |_, _| Default::default(),
 6476            node_runtime: NodeRuntime::unavailable(),
 6477            session,
 6478        });
 6479        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6480        workspace
 6481            .active_pane
 6482            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6483        workspace
 6484    }
 6485
 6486    pub fn register_action<A: Action>(
 6487        &mut self,
 6488        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6489    ) -> &mut Self {
 6490        let callback = Arc::new(callback);
 6491
 6492        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6493            let callback = callback.clone();
 6494            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6495                (callback)(workspace, event, window, cx)
 6496            }))
 6497        }));
 6498        self
 6499    }
 6500    pub fn register_action_renderer(
 6501        &mut self,
 6502        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6503    ) -> &mut Self {
 6504        self.workspace_actions.push(Box::new(callback));
 6505        self
 6506    }
 6507
 6508    fn add_workspace_actions_listeners(
 6509        &self,
 6510        mut div: Div,
 6511        window: &mut Window,
 6512        cx: &mut Context<Self>,
 6513    ) -> Div {
 6514        for action in self.workspace_actions.iter() {
 6515            div = (action)(div, self, window, cx)
 6516        }
 6517        div
 6518    }
 6519
 6520    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6521        self.modal_layer.read(cx).has_active_modal()
 6522    }
 6523
 6524    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6525        self.modal_layer.read(cx).active_modal()
 6526    }
 6527
 6528    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6529    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6530    /// If no modal is active, the new modal will be shown.
 6531    ///
 6532    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6533    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6534    /// will not be shown.
 6535    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6536    where
 6537        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6538    {
 6539        self.modal_layer.update(cx, |modal_layer, cx| {
 6540            modal_layer.toggle_modal(window, cx, build)
 6541        })
 6542    }
 6543
 6544    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6545        self.modal_layer
 6546            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6547    }
 6548
 6549    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6550        self.toast_layer
 6551            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6552    }
 6553
 6554    pub fn toggle_centered_layout(
 6555        &mut self,
 6556        _: &ToggleCenteredLayout,
 6557        _: &mut Window,
 6558        cx: &mut Context<Self>,
 6559    ) {
 6560        self.centered_layout = !self.centered_layout;
 6561        if let Some(database_id) = self.database_id() {
 6562            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6563                .detach_and_log_err(cx);
 6564        }
 6565        cx.notify();
 6566    }
 6567
 6568    fn adjust_padding(padding: Option<f32>) -> f32 {
 6569        padding
 6570            .unwrap_or(CenteredPaddingSettings::default().0)
 6571            .clamp(
 6572                CenteredPaddingSettings::MIN_PADDING,
 6573                CenteredPaddingSettings::MAX_PADDING,
 6574            )
 6575    }
 6576
 6577    fn render_dock(
 6578        &self,
 6579        position: DockPosition,
 6580        dock: &Entity<Dock>,
 6581        window: &mut Window,
 6582        cx: &mut App,
 6583    ) -> Option<Div> {
 6584        if self.zoomed_position == Some(position) {
 6585            return None;
 6586        }
 6587
 6588        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6589            let pane = panel.pane(cx)?;
 6590            let follower_states = &self.follower_states;
 6591            leader_border_for_pane(follower_states, &pane, window, cx)
 6592        });
 6593
 6594        Some(
 6595            div()
 6596                .flex()
 6597                .flex_none()
 6598                .overflow_hidden()
 6599                .child(dock.clone())
 6600                .children(leader_border),
 6601        )
 6602    }
 6603
 6604    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6605        window.root().flatten()
 6606    }
 6607
 6608    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6609        self.zoomed.as_ref()
 6610    }
 6611
 6612    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6613        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6614            return;
 6615        };
 6616        let windows = cx.windows();
 6617        let next_window =
 6618            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6619                || {
 6620                    windows
 6621                        .iter()
 6622                        .cycle()
 6623                        .skip_while(|window| window.window_id() != current_window_id)
 6624                        .nth(1)
 6625                },
 6626            );
 6627
 6628        if let Some(window) = next_window {
 6629            window
 6630                .update(cx, |_, window, _| window.activate_window())
 6631                .ok();
 6632        }
 6633    }
 6634
 6635    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6636        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6637            return;
 6638        };
 6639        let windows = cx.windows();
 6640        let prev_window =
 6641            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6642                || {
 6643                    windows
 6644                        .iter()
 6645                        .rev()
 6646                        .cycle()
 6647                        .skip_while(|window| window.window_id() != current_window_id)
 6648                        .nth(1)
 6649                },
 6650            );
 6651
 6652        if let Some(window) = prev_window {
 6653            window
 6654                .update(cx, |_, window, _| window.activate_window())
 6655                .ok();
 6656        }
 6657    }
 6658
 6659    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6660        if cx.stop_active_drag(window) {
 6661        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6662            dismiss_app_notification(&notification_id, cx);
 6663        } else {
 6664            cx.propagate();
 6665        }
 6666    }
 6667
 6668    fn adjust_dock_size_by_px(
 6669        &mut self,
 6670        panel_size: Pixels,
 6671        dock_pos: DockPosition,
 6672        px: Pixels,
 6673        window: &mut Window,
 6674        cx: &mut Context<Self>,
 6675    ) {
 6676        match dock_pos {
 6677            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6678            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6679            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6680        }
 6681    }
 6682
 6683    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6684        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6685
 6686        self.left_dock.update(cx, |left_dock, cx| {
 6687            if WorkspaceSettings::get_global(cx)
 6688                .resize_all_panels_in_dock
 6689                .contains(&DockPosition::Left)
 6690            {
 6691                left_dock.resize_all_panels(Some(size), window, cx);
 6692            } else {
 6693                left_dock.resize_active_panel(Some(size), window, cx);
 6694            }
 6695        });
 6696        self.clamp_utility_pane_widths(window, cx);
 6697    }
 6698
 6699    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6700        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6701        self.left_dock.read_with(cx, |left_dock, cx| {
 6702            let left_dock_size = left_dock
 6703                .active_panel_size(window, cx)
 6704                .unwrap_or(Pixels::ZERO);
 6705            if left_dock_size + size > self.bounds.right() {
 6706                size = self.bounds.right() - left_dock_size
 6707            }
 6708        });
 6709        self.right_dock.update(cx, |right_dock, cx| {
 6710            if WorkspaceSettings::get_global(cx)
 6711                .resize_all_panels_in_dock
 6712                .contains(&DockPosition::Right)
 6713            {
 6714                right_dock.resize_all_panels(Some(size), window, cx);
 6715            } else {
 6716                right_dock.resize_active_panel(Some(size), window, cx);
 6717            }
 6718        });
 6719        self.clamp_utility_pane_widths(window, cx);
 6720    }
 6721
 6722    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6723        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6724        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6725            if WorkspaceSettings::get_global(cx)
 6726                .resize_all_panels_in_dock
 6727                .contains(&DockPosition::Bottom)
 6728            {
 6729                bottom_dock.resize_all_panels(Some(size), window, cx);
 6730            } else {
 6731                bottom_dock.resize_active_panel(Some(size), window, cx);
 6732            }
 6733        });
 6734        self.clamp_utility_pane_widths(window, cx);
 6735    }
 6736
 6737    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6738        let left_dock_width = self
 6739            .left_dock
 6740            .read(cx)
 6741            .active_panel_size(window, cx)
 6742            .unwrap_or(px(0.0));
 6743        let right_dock_width = self
 6744            .right_dock
 6745            .read(cx)
 6746            .active_panel_size(window, cx)
 6747            .unwrap_or(px(0.0));
 6748        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6749        center_pane_width - px(10.0)
 6750    }
 6751
 6752    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6753        let max_width = self.max_utility_pane_width(window, cx);
 6754
 6755        // Clamp left slot utility pane if it exists
 6756        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6757            let current_width = handle.width(cx);
 6758            if current_width > max_width {
 6759                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6760            }
 6761        }
 6762
 6763        // Clamp right slot utility pane if it exists
 6764        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6765            let current_width = handle.width(cx);
 6766            if current_width > max_width {
 6767                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6768            }
 6769        }
 6770    }
 6771
 6772    fn toggle_edit_predictions_all_files(
 6773        &mut self,
 6774        _: &ToggleEditPrediction,
 6775        _window: &mut Window,
 6776        cx: &mut Context<Self>,
 6777    ) {
 6778        let fs = self.project().read(cx).fs().clone();
 6779        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6780        update_settings_file(fs, cx, move |file, _| {
 6781            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6782        });
 6783    }
 6784
 6785    pub fn show_worktree_trust_security_modal(
 6786        &mut self,
 6787        toggle: bool,
 6788        window: &mut Window,
 6789        cx: &mut Context<Self>,
 6790    ) {
 6791        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6792            if toggle {
 6793                security_modal.update(cx, |security_modal, cx| {
 6794                    security_modal.dismiss(cx);
 6795                })
 6796            } else {
 6797                security_modal.update(cx, |security_modal, cx| {
 6798                    security_modal.refresh_restricted_paths(cx);
 6799                });
 6800            }
 6801        } else {
 6802            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6803                .map(|trusted_worktrees| {
 6804                    trusted_worktrees
 6805                        .read(cx)
 6806                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6807                })
 6808                .unwrap_or(false);
 6809            if has_restricted_worktrees {
 6810                let project = self.project().read(cx);
 6811                let remote_host = project
 6812                    .remote_connection_options(cx)
 6813                    .map(RemoteHostLocation::from);
 6814                let worktree_store = project.worktree_store().downgrade();
 6815                self.toggle_modal(window, cx, |_, cx| {
 6816                    SecurityModal::new(worktree_store, remote_host, cx)
 6817                });
 6818            }
 6819        }
 6820    }
 6821}
 6822
 6823fn leader_border_for_pane(
 6824    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6825    pane: &Entity<Pane>,
 6826    _: &Window,
 6827    cx: &App,
 6828) -> Option<Div> {
 6829    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6830        if state.pane() == pane {
 6831            Some((*leader_id, state))
 6832        } else {
 6833            None
 6834        }
 6835    })?;
 6836
 6837    let mut leader_color = match leader_id {
 6838        CollaboratorId::PeerId(leader_peer_id) => {
 6839            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6840            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6841
 6842            cx.theme()
 6843                .players()
 6844                .color_for_participant(leader.participant_index.0)
 6845                .cursor
 6846        }
 6847        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6848    };
 6849    leader_color.fade_out(0.3);
 6850    Some(
 6851        div()
 6852            .absolute()
 6853            .size_full()
 6854            .left_0()
 6855            .top_0()
 6856            .border_2()
 6857            .border_color(leader_color),
 6858    )
 6859}
 6860
 6861fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6862    ZED_WINDOW_POSITION
 6863        .zip(*ZED_WINDOW_SIZE)
 6864        .map(|(position, size)| Bounds {
 6865            origin: position,
 6866            size,
 6867        })
 6868}
 6869
 6870fn open_items(
 6871    serialized_workspace: Option<SerializedWorkspace>,
 6872    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6873    window: &mut Window,
 6874    cx: &mut Context<Workspace>,
 6875) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6876    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6877        Workspace::load_workspace(
 6878            serialized_workspace,
 6879            project_paths_to_open
 6880                .iter()
 6881                .map(|(_, project_path)| project_path)
 6882                .cloned()
 6883                .collect(),
 6884            window,
 6885            cx,
 6886        )
 6887    });
 6888
 6889    cx.spawn_in(window, async move |workspace, cx| {
 6890        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6891
 6892        if let Some(restored_items) = restored_items {
 6893            let restored_items = restored_items.await?;
 6894
 6895            let restored_project_paths = restored_items
 6896                .iter()
 6897                .filter_map(|item| {
 6898                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6899                        .ok()
 6900                        .flatten()
 6901                })
 6902                .collect::<HashSet<_>>();
 6903
 6904            for restored_item in restored_items {
 6905                opened_items.push(restored_item.map(Ok));
 6906            }
 6907
 6908            project_paths_to_open
 6909                .iter_mut()
 6910                .for_each(|(_, project_path)| {
 6911                    if let Some(project_path_to_open) = project_path
 6912                        && restored_project_paths.contains(project_path_to_open)
 6913                    {
 6914                        *project_path = None;
 6915                    }
 6916                });
 6917        } else {
 6918            for _ in 0..project_paths_to_open.len() {
 6919                opened_items.push(None);
 6920            }
 6921        }
 6922        assert!(opened_items.len() == project_paths_to_open.len());
 6923
 6924        let tasks =
 6925            project_paths_to_open
 6926                .into_iter()
 6927                .enumerate()
 6928                .map(|(ix, (abs_path, project_path))| {
 6929                    let workspace = workspace.clone();
 6930                    cx.spawn(async move |cx| {
 6931                        let file_project_path = project_path?;
 6932                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6933                            workspace.project().update(cx, |project, cx| {
 6934                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6935                            })
 6936                        });
 6937
 6938                        // We only want to open file paths here. If one of the items
 6939                        // here is a directory, it was already opened further above
 6940                        // with a `find_or_create_worktree`.
 6941                        if let Ok(task) = abs_path_task
 6942                            && task.await.is_none_or(|p| p.is_file())
 6943                        {
 6944                            return Some((
 6945                                ix,
 6946                                workspace
 6947                                    .update_in(cx, |workspace, window, cx| {
 6948                                        workspace.open_path(
 6949                                            file_project_path,
 6950                                            None,
 6951                                            true,
 6952                                            window,
 6953                                            cx,
 6954                                        )
 6955                                    })
 6956                                    .log_err()?
 6957                                    .await,
 6958                            ));
 6959                        }
 6960                        None
 6961                    })
 6962                });
 6963
 6964        let tasks = tasks.collect::<Vec<_>>();
 6965
 6966        let tasks = futures::future::join_all(tasks);
 6967        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6968            opened_items[ix] = Some(path_open_result);
 6969        }
 6970
 6971        Ok(opened_items)
 6972    })
 6973}
 6974
 6975enum ActivateInDirectionTarget {
 6976    Pane(Entity<Pane>),
 6977    Dock(Entity<Dock>),
 6978}
 6979
 6980fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6981    workspace
 6982        .update(cx, |workspace, _, cx| {
 6983            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6984                struct DatabaseFailedNotification;
 6985
 6986                workspace.show_notification(
 6987                    NotificationId::unique::<DatabaseFailedNotification>(),
 6988                    cx,
 6989                    |cx| {
 6990                        cx.new(|cx| {
 6991                            MessageNotification::new("Failed to load the database file.", cx)
 6992                                .primary_message("File an Issue")
 6993                                .primary_icon(IconName::Plus)
 6994                                .primary_on_click(|window, cx| {
 6995                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6996                                })
 6997                        })
 6998                    },
 6999                );
 7000            }
 7001        })
 7002        .log_err();
 7003}
 7004
 7005fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7006    if val == 0 {
 7007        ThemeSettings::get_global(cx).ui_font_size(cx)
 7008    } else {
 7009        px(val as f32)
 7010    }
 7011}
 7012
 7013fn adjust_active_dock_size_by_px(
 7014    px: Pixels,
 7015    workspace: &mut Workspace,
 7016    window: &mut Window,
 7017    cx: &mut Context<Workspace>,
 7018) {
 7019    let Some(active_dock) = workspace
 7020        .all_docks()
 7021        .into_iter()
 7022        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7023    else {
 7024        return;
 7025    };
 7026    let dock = active_dock.read(cx);
 7027    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7028        return;
 7029    };
 7030    let dock_pos = dock.position();
 7031    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7032}
 7033
 7034fn adjust_open_docks_size_by_px(
 7035    px: Pixels,
 7036    workspace: &mut Workspace,
 7037    window: &mut Window,
 7038    cx: &mut Context<Workspace>,
 7039) {
 7040    let docks = workspace
 7041        .all_docks()
 7042        .into_iter()
 7043        .filter_map(|dock| {
 7044            if dock.read(cx).is_open() {
 7045                let dock = dock.read(cx);
 7046                let panel_size = dock.active_panel_size(window, cx)?;
 7047                let dock_pos = dock.position();
 7048                Some((panel_size, dock_pos, px))
 7049            } else {
 7050                None
 7051            }
 7052        })
 7053        .collect::<Vec<_>>();
 7054
 7055    docks
 7056        .into_iter()
 7057        .for_each(|(panel_size, dock_pos, offset)| {
 7058            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7059        });
 7060}
 7061
 7062impl Focusable for Workspace {
 7063    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7064        self.active_pane.focus_handle(cx)
 7065    }
 7066}
 7067
 7068#[derive(Clone)]
 7069struct DraggedDock(DockPosition);
 7070
 7071impl Render for DraggedDock {
 7072    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7073        gpui::Empty
 7074    }
 7075}
 7076
 7077impl Render for Workspace {
 7078    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7079        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7080        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7081            log::info!("Rendered first frame");
 7082        }
 7083        let mut context = KeyContext::new_with_defaults();
 7084        context.add("Workspace");
 7085        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 7086        if let Some(status) = self
 7087            .debugger_provider
 7088            .as_ref()
 7089            .and_then(|provider| provider.active_thread_state(cx))
 7090        {
 7091            match status {
 7092                ThreadStatus::Running | ThreadStatus::Stepping => {
 7093                    context.add("debugger_running");
 7094                }
 7095                ThreadStatus::Stopped => context.add("debugger_stopped"),
 7096                ThreadStatus::Exited | ThreadStatus::Ended => {}
 7097            }
 7098        }
 7099
 7100        if self.left_dock.read(cx).is_open() {
 7101            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 7102                context.set("left_dock", active_panel.panel_key());
 7103            }
 7104        }
 7105
 7106        if self.right_dock.read(cx).is_open() {
 7107            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 7108                context.set("right_dock", active_panel.panel_key());
 7109            }
 7110        }
 7111
 7112        if self.bottom_dock.read(cx).is_open() {
 7113            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 7114                context.set("bottom_dock", active_panel.panel_key());
 7115            }
 7116        }
 7117
 7118        let centered_layout = self.centered_layout
 7119            && self.center.panes().len() == 1
 7120            && self.active_item(cx).is_some();
 7121        let render_padding = |size| {
 7122            (size > 0.0).then(|| {
 7123                div()
 7124                    .h_full()
 7125                    .w(relative(size))
 7126                    .bg(cx.theme().colors().editor_background)
 7127                    .border_color(cx.theme().colors().pane_group_border)
 7128            })
 7129        };
 7130        let paddings = if centered_layout {
 7131            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7132            (
 7133                render_padding(Self::adjust_padding(
 7134                    settings.left_padding.map(|padding| padding.0),
 7135                )),
 7136                render_padding(Self::adjust_padding(
 7137                    settings.right_padding.map(|padding| padding.0),
 7138                )),
 7139            )
 7140        } else {
 7141            (None, None)
 7142        };
 7143        let ui_font = theme::setup_ui_font(window, cx);
 7144
 7145        let theme = cx.theme().clone();
 7146        let colors = theme.colors();
 7147        let notification_entities = self
 7148            .notifications
 7149            .iter()
 7150            .map(|(_, notification)| notification.entity_id())
 7151            .collect::<Vec<_>>();
 7152        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7153
 7154        client_side_decorations(
 7155            self.actions(div(), window, cx)
 7156                .key_context(context)
 7157                .relative()
 7158                .size_full()
 7159                .flex()
 7160                .flex_col()
 7161                .font(ui_font)
 7162                .gap_0()
 7163                .justify_start()
 7164                .items_start()
 7165                .text_color(colors.text)
 7166                .overflow_hidden()
 7167                .children(self.titlebar_item.clone())
 7168                .on_modifiers_changed(move |_, _, cx| {
 7169                    for &id in &notification_entities {
 7170                        cx.notify(id);
 7171                    }
 7172                })
 7173                .child(
 7174                    div()
 7175                        .size_full()
 7176                        .relative()
 7177                        .flex_1()
 7178                        .flex()
 7179                        .flex_col()
 7180                        .child(
 7181                            div()
 7182                                .id("workspace")
 7183                                .bg(colors.background)
 7184                                .relative()
 7185                                .flex_1()
 7186                                .w_full()
 7187                                .flex()
 7188                                .flex_col()
 7189                                .overflow_hidden()
 7190                                .border_t_1()
 7191                                .border_b_1()
 7192                                .border_color(colors.border)
 7193                                .child({
 7194                                    let this = cx.entity();
 7195                                    canvas(
 7196                                        move |bounds, window, cx| {
 7197                                            this.update(cx, |this, cx| {
 7198                                                let bounds_changed = this.bounds != bounds;
 7199                                                this.bounds = bounds;
 7200
 7201                                                if bounds_changed {
 7202                                                    this.left_dock.update(cx, |dock, cx| {
 7203                                                        dock.clamp_panel_size(
 7204                                                            bounds.size.width,
 7205                                                            window,
 7206                                                            cx,
 7207                                                        )
 7208                                                    });
 7209
 7210                                                    this.right_dock.update(cx, |dock, cx| {
 7211                                                        dock.clamp_panel_size(
 7212                                                            bounds.size.width,
 7213                                                            window,
 7214                                                            cx,
 7215                                                        )
 7216                                                    });
 7217
 7218                                                    this.bottom_dock.update(cx, |dock, cx| {
 7219                                                        dock.clamp_panel_size(
 7220                                                            bounds.size.height,
 7221                                                            window,
 7222                                                            cx,
 7223                                                        )
 7224                                                    });
 7225                                                }
 7226                                            })
 7227                                        },
 7228                                        |_, _, _, _| {},
 7229                                    )
 7230                                    .absolute()
 7231                                    .size_full()
 7232                                })
 7233                                .when(self.zoomed.is_none(), |this| {
 7234                                    this.on_drag_move(cx.listener(
 7235                                        move |workspace,
 7236                                              e: &DragMoveEvent<DraggedDock>,
 7237                                              window,
 7238                                              cx| {
 7239                                            if workspace.previous_dock_drag_coordinates
 7240                                                != Some(e.event.position)
 7241                                            {
 7242                                                workspace.previous_dock_drag_coordinates =
 7243                                                    Some(e.event.position);
 7244                                                match e.drag(cx).0 {
 7245                                                    DockPosition::Left => {
 7246                                                        workspace.resize_left_dock(
 7247                                                            e.event.position.x
 7248                                                                - workspace.bounds.left(),
 7249                                                            window,
 7250                                                            cx,
 7251                                                        );
 7252                                                    }
 7253                                                    DockPosition::Right => {
 7254                                                        workspace.resize_right_dock(
 7255                                                            workspace.bounds.right()
 7256                                                                - e.event.position.x,
 7257                                                            window,
 7258                                                            cx,
 7259                                                        );
 7260                                                    }
 7261                                                    DockPosition::Bottom => {
 7262                                                        workspace.resize_bottom_dock(
 7263                                                            workspace.bounds.bottom()
 7264                                                                - e.event.position.y,
 7265                                                            window,
 7266                                                            cx,
 7267                                                        );
 7268                                                    }
 7269                                                };
 7270                                                workspace.serialize_workspace(window, cx);
 7271                                            }
 7272                                        },
 7273                                    ))
 7274                                    .on_drag_move(cx.listener(
 7275                                        move |workspace,
 7276                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7277                                              window,
 7278                                              cx| {
 7279                                            let slot = e.drag(cx).0;
 7280                                            match slot {
 7281                                                UtilityPaneSlot::Left => {
 7282                                                    let left_dock_width = workspace.left_dock.read(cx)
 7283                                                        .active_panel_size(window, cx)
 7284                                                        .unwrap_or(gpui::px(0.0));
 7285                                                    let new_width = e.event.position.x
 7286                                                        - workspace.bounds.left()
 7287                                                        - left_dock_width;
 7288                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7289                                                }
 7290                                                UtilityPaneSlot::Right => {
 7291                                                    let right_dock_width = workspace.right_dock.read(cx)
 7292                                                        .active_panel_size(window, cx)
 7293                                                        .unwrap_or(gpui::px(0.0));
 7294                                                    let new_width = workspace.bounds.right()
 7295                                                        - e.event.position.x
 7296                                                        - right_dock_width;
 7297                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7298                                                }
 7299                                            }
 7300                                        },
 7301                                    ))
 7302                                })
 7303                                .child({
 7304                                    match bottom_dock_layout {
 7305                                        BottomDockLayout::Full => div()
 7306                                            .flex()
 7307                                            .flex_col()
 7308                                            .h_full()
 7309                                            .child(
 7310                                                div()
 7311                                                    .flex()
 7312                                                    .flex_row()
 7313                                                    .flex_1()
 7314                                                    .overflow_hidden()
 7315                                                    .children(self.render_dock(
 7316                                                        DockPosition::Left,
 7317                                                        &self.left_dock,
 7318                                                        window,
 7319                                                        cx,
 7320                                                    ))
 7321                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7322                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7323                                                            this.when(pane.expanded(cx), |this| {
 7324                                                                this.child(
 7325                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7326                                                                )
 7327                                                            })
 7328                                                        })
 7329                                                    })
 7330                                                    .child(
 7331                                                        div()
 7332                                                            .flex()
 7333                                                            .flex_col()
 7334                                                            .flex_1()
 7335                                                            .overflow_hidden()
 7336                                                            .child(
 7337                                                                h_flex()
 7338                                                                    .flex_1()
 7339                                                                    .when_some(
 7340                                                                        paddings.0,
 7341                                                                        |this, p| {
 7342                                                                            this.child(
 7343                                                                                p.border_r_1(),
 7344                                                                            )
 7345                                                                        },
 7346                                                                    )
 7347                                                                    .child(self.center.render(
 7348                                                                        self.zoomed.as_ref(),
 7349                                                                        &PaneRenderContext {
 7350                                                                            follower_states:
 7351                                                                                &self.follower_states,
 7352                                                                            active_call: self.active_call(),
 7353                                                                            active_pane: &self.active_pane,
 7354                                                                            app_state: &self.app_state,
 7355                                                                            project: &self.project,
 7356                                                                            workspace: &self.weak_self,
 7357                                                                        },
 7358                                                                        window,
 7359                                                                        cx,
 7360                                                                    ))
 7361                                                                    .when_some(
 7362                                                                        paddings.1,
 7363                                                                        |this, p| {
 7364                                                                            this.child(
 7365                                                                                p.border_l_1(),
 7366                                                                            )
 7367                                                                        },
 7368                                                                    ),
 7369                                                            ),
 7370                                                    )
 7371                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7372                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7373                                                            this.when(pane.expanded(cx), |this| {
 7374                                                                this.child(
 7375                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7376                                                                )
 7377                                                            })
 7378                                                        })
 7379                                                    })
 7380                                                    .children(self.render_dock(
 7381                                                        DockPosition::Right,
 7382                                                        &self.right_dock,
 7383                                                        window,
 7384                                                        cx,
 7385                                                    )),
 7386                                            )
 7387                                            .child(div().w_full().children(self.render_dock(
 7388                                                DockPosition::Bottom,
 7389                                                &self.bottom_dock,
 7390                                                window,
 7391                                                cx
 7392                                            ))),
 7393
 7394                                        BottomDockLayout::LeftAligned => div()
 7395                                            .flex()
 7396                                            .flex_row()
 7397                                            .h_full()
 7398                                            .child(
 7399                                                div()
 7400                                                    .flex()
 7401                                                    .flex_col()
 7402                                                    .flex_1()
 7403                                                    .h_full()
 7404                                                    .child(
 7405                                                        div()
 7406                                                            .flex()
 7407                                                            .flex_row()
 7408                                                            .flex_1()
 7409                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7410                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7411                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7412                                                                    this.when(pane.expanded(cx), |this| {
 7413                                                                        this.child(
 7414                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7415                                                                        )
 7416                                                                    })
 7417                                                                })
 7418                                                            })
 7419                                                            .child(
 7420                                                                div()
 7421                                                                    .flex()
 7422                                                                    .flex_col()
 7423                                                                    .flex_1()
 7424                                                                    .overflow_hidden()
 7425                                                                    .child(
 7426                                                                        h_flex()
 7427                                                                            .flex_1()
 7428                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7429                                                                            .child(self.center.render(
 7430                                                                                self.zoomed.as_ref(),
 7431                                                                                &PaneRenderContext {
 7432                                                                                    follower_states:
 7433                                                                                        &self.follower_states,
 7434                                                                                    active_call: self.active_call(),
 7435                                                                                    active_pane: &self.active_pane,
 7436                                                                                    app_state: &self.app_state,
 7437                                                                                    project: &self.project,
 7438                                                                                    workspace: &self.weak_self,
 7439                                                                                },
 7440                                                                                window,
 7441                                                                                cx,
 7442                                                                            ))
 7443                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7444                                                                    )
 7445                                                            )
 7446                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7447                                                                this.when(pane.expanded(cx), |this| {
 7448                                                                    this.child(
 7449                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7450                                                                    )
 7451                                                                })
 7452                                                            })
 7453                                                    )
 7454                                                    .child(
 7455                                                        div()
 7456                                                            .w_full()
 7457                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7458                                                    ),
 7459                                            )
 7460                                            .children(self.render_dock(
 7461                                                DockPosition::Right,
 7462                                                &self.right_dock,
 7463                                                window,
 7464                                                cx,
 7465                                            )),
 7466
 7467                                        BottomDockLayout::RightAligned => div()
 7468                                            .flex()
 7469                                            .flex_row()
 7470                                            .h_full()
 7471                                            .children(self.render_dock(
 7472                                                DockPosition::Left,
 7473                                                &self.left_dock,
 7474                                                window,
 7475                                                cx,
 7476                                            ))
 7477                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7478                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7479                                                    this.when(pane.expanded(cx), |this| {
 7480                                                        this.child(
 7481                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7482                                                        )
 7483                                                    })
 7484                                                })
 7485                                            })
 7486                                            .child(
 7487                                                div()
 7488                                                    .flex()
 7489                                                    .flex_col()
 7490                                                    .flex_1()
 7491                                                    .h_full()
 7492                                                    .child(
 7493                                                        div()
 7494                                                            .flex()
 7495                                                            .flex_row()
 7496                                                            .flex_1()
 7497                                                            .child(
 7498                                                                div()
 7499                                                                    .flex()
 7500                                                                    .flex_col()
 7501                                                                    .flex_1()
 7502                                                                    .overflow_hidden()
 7503                                                                    .child(
 7504                                                                        h_flex()
 7505                                                                            .flex_1()
 7506                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7507                                                                            .child(self.center.render(
 7508                                                                                self.zoomed.as_ref(),
 7509                                                                                &PaneRenderContext {
 7510                                                                                    follower_states:
 7511                                                                                        &self.follower_states,
 7512                                                                                    active_call: self.active_call(),
 7513                                                                                    active_pane: &self.active_pane,
 7514                                                                                    app_state: &self.app_state,
 7515                                                                                    project: &self.project,
 7516                                                                                    workspace: &self.weak_self,
 7517                                                                                },
 7518                                                                                window,
 7519                                                                                cx,
 7520                                                                            ))
 7521                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7522                                                                    )
 7523                                                            )
 7524                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7525                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7526                                                                    this.when(pane.expanded(cx), |this| {
 7527                                                                        this.child(
 7528                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7529                                                                        )
 7530                                                                    })
 7531                                                                })
 7532                                                            })
 7533                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7534                                                    )
 7535                                                    .child(
 7536                                                        div()
 7537                                                            .w_full()
 7538                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7539                                                    ),
 7540                                            ),
 7541
 7542                                        BottomDockLayout::Contained => div()
 7543                                            .flex()
 7544                                            .flex_row()
 7545                                            .h_full()
 7546                                            .children(self.render_dock(
 7547                                                DockPosition::Left,
 7548                                                &self.left_dock,
 7549                                                window,
 7550                                                cx,
 7551                                            ))
 7552                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7553                                                this.when(pane.expanded(cx), |this| {
 7554                                                    this.child(
 7555                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7556                                                    )
 7557                                                })
 7558                                            })
 7559                                            .child(
 7560                                                div()
 7561                                                    .flex()
 7562                                                    .flex_col()
 7563                                                    .flex_1()
 7564                                                    .overflow_hidden()
 7565                                                    .child(
 7566                                                        h_flex()
 7567                                                            .flex_1()
 7568                                                            .when_some(paddings.0, |this, p| {
 7569                                                                this.child(p.border_r_1())
 7570                                                            })
 7571                                                            .child(self.center.render(
 7572                                                                self.zoomed.as_ref(),
 7573                                                                &PaneRenderContext {
 7574                                                                    follower_states:
 7575                                                                        &self.follower_states,
 7576                                                                    active_call: self.active_call(),
 7577                                                                    active_pane: &self.active_pane,
 7578                                                                    app_state: &self.app_state,
 7579                                                                    project: &self.project,
 7580                                                                    workspace: &self.weak_self,
 7581                                                                },
 7582                                                                window,
 7583                                                                cx,
 7584                                                            ))
 7585                                                            .when_some(paddings.1, |this, p| {
 7586                                                                this.child(p.border_l_1())
 7587                                                            }),
 7588                                                    )
 7589                                                    .children(self.render_dock(
 7590                                                        DockPosition::Bottom,
 7591                                                        &self.bottom_dock,
 7592                                                        window,
 7593                                                        cx,
 7594                                                    )),
 7595                                            )
 7596                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7597                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7598                                                    this.when(pane.expanded(cx), |this| {
 7599                                                        this.child(
 7600                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7601                                                        )
 7602                                                    })
 7603                                                })
 7604                                            })
 7605                                            .children(self.render_dock(
 7606                                                DockPosition::Right,
 7607                                                &self.right_dock,
 7608                                                window,
 7609                                                cx,
 7610                                            )),
 7611                                    }
 7612                                })
 7613                                .children(self.zoomed.as_ref().and_then(|view| {
 7614                                    let zoomed_view = view.upgrade()?;
 7615                                    let div = div()
 7616                                        .occlude()
 7617                                        .absolute()
 7618                                        .overflow_hidden()
 7619                                        .border_color(colors.border)
 7620                                        .bg(colors.background)
 7621                                        .child(zoomed_view)
 7622                                        .inset_0()
 7623                                        .shadow_lg();
 7624
 7625                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7626                                       return Some(div);
 7627                                    }
 7628
 7629                                    Some(match self.zoomed_position {
 7630                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7631                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7632                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7633                                        None => {
 7634                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7635                                        }
 7636                                    })
 7637                                }))
 7638                                .children(self.render_notifications(window, cx)),
 7639                        )
 7640                        .when(self.status_bar_visible(cx), |parent| {
 7641                            parent.child(self.status_bar.clone())
 7642                        })
 7643                        .child(self.modal_layer.clone())
 7644                        .child(self.toast_layer.clone()),
 7645                ),
 7646            window,
 7647            cx,
 7648        )
 7649    }
 7650}
 7651
 7652impl WorkspaceStore {
 7653    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7654        Self {
 7655            workspaces: Default::default(),
 7656            _subscriptions: vec![
 7657                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7658                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7659            ],
 7660            client,
 7661        }
 7662    }
 7663
 7664    pub fn update_followers(
 7665        &self,
 7666        project_id: Option<u64>,
 7667        update: proto::update_followers::Variant,
 7668        cx: &App,
 7669    ) -> Option<()> {
 7670        let active_call = ActiveCall::try_global(cx)?;
 7671        let room_id = active_call.read(cx).room()?.read(cx).id();
 7672        self.client
 7673            .send(proto::UpdateFollowers {
 7674                room_id,
 7675                project_id,
 7676                variant: Some(update),
 7677            })
 7678            .log_err()
 7679    }
 7680
 7681    pub async fn handle_follow(
 7682        this: Entity<Self>,
 7683        envelope: TypedEnvelope<proto::Follow>,
 7684        mut cx: AsyncApp,
 7685    ) -> Result<proto::FollowResponse> {
 7686        this.update(&mut cx, |this, cx| {
 7687            let follower = Follower {
 7688                project_id: envelope.payload.project_id,
 7689                peer_id: envelope.original_sender_id()?,
 7690            };
 7691
 7692            let mut response = proto::FollowResponse::default();
 7693            this.workspaces.retain(|workspace| {
 7694                workspace
 7695                    .update(cx, |workspace, window, cx| {
 7696                        let handler_response =
 7697                            workspace.handle_follow(follower.project_id, window, cx);
 7698                        if let Some(active_view) = handler_response.active_view
 7699                            && workspace.project.read(cx).remote_id() == follower.project_id
 7700                        {
 7701                            response.active_view = Some(active_view)
 7702                        }
 7703                    })
 7704                    .is_ok()
 7705            });
 7706
 7707            Ok(response)
 7708        })
 7709    }
 7710
 7711    async fn handle_update_followers(
 7712        this: Entity<Self>,
 7713        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7714        mut cx: AsyncApp,
 7715    ) -> Result<()> {
 7716        let leader_id = envelope.original_sender_id()?;
 7717        let update = envelope.payload;
 7718
 7719        this.update(&mut cx, |this, cx| {
 7720            this.workspaces.retain(|workspace| {
 7721                workspace
 7722                    .update(cx, |workspace, window, cx| {
 7723                        let project_id = workspace.project.read(cx).remote_id();
 7724                        if update.project_id != project_id && update.project_id.is_some() {
 7725                            return;
 7726                        }
 7727                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7728                    })
 7729                    .is_ok()
 7730            });
 7731            Ok(())
 7732        })
 7733    }
 7734
 7735    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7736        &self.workspaces
 7737    }
 7738}
 7739
 7740impl ViewId {
 7741    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7742        Ok(Self {
 7743            creator: message
 7744                .creator
 7745                .map(CollaboratorId::PeerId)
 7746                .context("creator is missing")?,
 7747            id: message.id,
 7748        })
 7749    }
 7750
 7751    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7752        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7753            Some(proto::ViewId {
 7754                creator: Some(peer_id),
 7755                id: self.id,
 7756            })
 7757        } else {
 7758            None
 7759        }
 7760    }
 7761}
 7762
 7763impl FollowerState {
 7764    fn pane(&self) -> &Entity<Pane> {
 7765        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7766    }
 7767}
 7768
 7769pub trait WorkspaceHandle {
 7770    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7771}
 7772
 7773impl WorkspaceHandle for Entity<Workspace> {
 7774    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7775        self.read(cx)
 7776            .worktrees(cx)
 7777            .flat_map(|worktree| {
 7778                let worktree_id = worktree.read(cx).id();
 7779                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7780                    worktree_id,
 7781                    path: f.path.clone(),
 7782                })
 7783            })
 7784            .collect::<Vec<_>>()
 7785    }
 7786}
 7787
 7788pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7789    DB.last_workspace().await.log_err().flatten()
 7790}
 7791
 7792pub fn last_session_workspace_locations(
 7793    last_session_id: &str,
 7794    last_session_window_stack: Option<Vec<WindowId>>,
 7795) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7796    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7797        .log_err()
 7798}
 7799
 7800actions!(
 7801    collab,
 7802    [
 7803        /// Opens the channel notes for the current call.
 7804        ///
 7805        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7806        /// channel in the collab panel.
 7807        ///
 7808        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7809        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7810        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7811        OpenChannelNotes,
 7812        /// Mutes your microphone.
 7813        Mute,
 7814        /// Deafens yourself (mute both microphone and speakers).
 7815        Deafen,
 7816        /// Leaves the current call.
 7817        LeaveCall,
 7818        /// Shares the current project with collaborators.
 7819        ShareProject,
 7820        /// Shares your screen with collaborators.
 7821        ScreenShare,
 7822        /// Copies the current room name and session id for debugging purposes.
 7823        CopyRoomId,
 7824    ]
 7825);
 7826actions!(
 7827    zed,
 7828    [
 7829        /// Opens the Zed log file.
 7830        OpenLog,
 7831        /// Reveals the Zed log file in the system file manager.
 7832        RevealLogInFileManager
 7833    ]
 7834);
 7835
 7836async fn join_channel_internal(
 7837    channel_id: ChannelId,
 7838    app_state: &Arc<AppState>,
 7839    requesting_window: Option<WindowHandle<Workspace>>,
 7840    active_call: &Entity<ActiveCall>,
 7841    cx: &mut AsyncApp,
 7842) -> Result<bool> {
 7843    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7844        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7845            return (false, None);
 7846        };
 7847
 7848        let already_in_channel = room.channel_id() == Some(channel_id);
 7849        let should_prompt = room.is_sharing_project()
 7850            && !room.remote_participants().is_empty()
 7851            && !already_in_channel;
 7852        let open_room = if already_in_channel {
 7853            active_call.room().cloned()
 7854        } else {
 7855            None
 7856        };
 7857        (should_prompt, open_room)
 7858    });
 7859
 7860    if let Some(room) = open_room {
 7861        let task = room.update(cx, |room, cx| {
 7862            if let Some((project, host)) = room.most_active_project(cx) {
 7863                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7864            }
 7865
 7866            None
 7867        });
 7868        if let Some(task) = task {
 7869            task.await?;
 7870        }
 7871        return anyhow::Ok(true);
 7872    }
 7873
 7874    if should_prompt {
 7875        if let Some(workspace) = requesting_window {
 7876            let answer = workspace
 7877                .update(cx, |_, window, cx| {
 7878                    window.prompt(
 7879                        PromptLevel::Warning,
 7880                        "Do you want to switch channels?",
 7881                        Some("Leaving this call will unshare your current project."),
 7882                        &["Yes, Join Channel", "Cancel"],
 7883                        cx,
 7884                    )
 7885                })?
 7886                .await;
 7887
 7888            if answer == Ok(1) {
 7889                return Ok(false);
 7890            }
 7891        } else {
 7892            return Ok(false); // unreachable!() hopefully
 7893        }
 7894    }
 7895
 7896    let client = cx.update(|cx| active_call.read(cx).client());
 7897
 7898    let mut client_status = client.status();
 7899
 7900    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7901    'outer: loop {
 7902        let Some(status) = client_status.recv().await else {
 7903            anyhow::bail!("error connecting");
 7904        };
 7905
 7906        match status {
 7907            Status::Connecting
 7908            | Status::Authenticating
 7909            | Status::Authenticated
 7910            | Status::Reconnecting
 7911            | Status::Reauthenticating
 7912            | Status::Reauthenticated => continue,
 7913            Status::Connected { .. } => break 'outer,
 7914            Status::SignedOut | Status::AuthenticationError => {
 7915                return Err(ErrorCode::SignedOut.into());
 7916            }
 7917            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7918            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7919                return Err(ErrorCode::Disconnected.into());
 7920            }
 7921        }
 7922    }
 7923
 7924    let room = active_call
 7925        .update(cx, |active_call, cx| {
 7926            active_call.join_channel(channel_id, cx)
 7927        })
 7928        .await?;
 7929
 7930    let Some(room) = room else {
 7931        return anyhow::Ok(true);
 7932    };
 7933
 7934    room.update(cx, |room, _| room.room_update_completed())
 7935        .await;
 7936
 7937    let task = room.update(cx, |room, cx| {
 7938        if let Some((project, host)) = room.most_active_project(cx) {
 7939            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7940        }
 7941
 7942        // If you are the first to join a channel, see if you should share your project.
 7943        if room.remote_participants().is_empty()
 7944            && !room.local_participant_is_guest()
 7945            && let Some(workspace) = requesting_window
 7946        {
 7947            let project = workspace.update(cx, |workspace, _, cx| {
 7948                let project = workspace.project.read(cx);
 7949
 7950                if !CallSettings::get_global(cx).share_on_join {
 7951                    return None;
 7952                }
 7953
 7954                if (project.is_local() || project.is_via_remote_server())
 7955                    && project.visible_worktrees(cx).any(|tree| {
 7956                        tree.read(cx)
 7957                            .root_entry()
 7958                            .is_some_and(|entry| entry.is_dir())
 7959                    })
 7960                {
 7961                    Some(workspace.project.clone())
 7962                } else {
 7963                    None
 7964                }
 7965            });
 7966            if let Ok(Some(project)) = project {
 7967                return Some(cx.spawn(async move |room, cx| {
 7968                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7969                        .await?;
 7970                    Ok(())
 7971                }));
 7972            }
 7973        }
 7974
 7975        None
 7976    });
 7977    if let Some(task) = task {
 7978        task.await?;
 7979        return anyhow::Ok(true);
 7980    }
 7981    anyhow::Ok(false)
 7982}
 7983
 7984pub fn join_channel(
 7985    channel_id: ChannelId,
 7986    app_state: Arc<AppState>,
 7987    requesting_window: Option<WindowHandle<Workspace>>,
 7988    cx: &mut App,
 7989) -> Task<Result<()>> {
 7990    let active_call = ActiveCall::global(cx);
 7991    cx.spawn(async move |cx| {
 7992        let result =
 7993            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7994                .await;
 7995
 7996        // join channel succeeded, and opened a window
 7997        if matches!(result, Ok(true)) {
 7998            return anyhow::Ok(());
 7999        }
 8000
 8001        // find an existing workspace to focus and show call controls
 8002        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8003        if active_window.is_none() {
 8004            // no open workspaces, make one to show the error in (blergh)
 8005            let (window_handle, _) = cx
 8006                .update(|cx| {
 8007                    Workspace::new_local(
 8008                        vec![],
 8009                        app_state.clone(),
 8010                        requesting_window,
 8011                        None,
 8012                        None,
 8013                        cx,
 8014                    )
 8015                })
 8016                .await?;
 8017
 8018            if result.is_ok() {
 8019                cx.update(|cx| {
 8020                    cx.dispatch_action(&OpenChannelNotes);
 8021                });
 8022            }
 8023
 8024            active_window = Some(window_handle);
 8025        }
 8026
 8027        if let Err(err) = result {
 8028            log::error!("failed to join channel: {}", err);
 8029            if let Some(active_window) = active_window {
 8030                active_window
 8031                    .update(cx, |_, window, cx| {
 8032                        let detail: SharedString = match err.error_code() {
 8033                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8034                            ErrorCode::UpgradeRequired => concat!(
 8035                                "Your are running an unsupported version of Zed. ",
 8036                                "Please update to continue."
 8037                            )
 8038                            .into(),
 8039                            ErrorCode::NoSuchChannel => concat!(
 8040                                "No matching channel was found. ",
 8041                                "Please check the link and try again."
 8042                            )
 8043                            .into(),
 8044                            ErrorCode::Forbidden => concat!(
 8045                                "This channel is private, and you do not have access. ",
 8046                                "Please ask someone to add you and try again."
 8047                            )
 8048                            .into(),
 8049                            ErrorCode::Disconnected => {
 8050                                "Please check your internet connection and try again.".into()
 8051                            }
 8052                            _ => format!("{}\n\nPlease try again.", err).into(),
 8053                        };
 8054                        window.prompt(
 8055                            PromptLevel::Critical,
 8056                            "Failed to join channel",
 8057                            Some(&detail),
 8058                            &["Ok"],
 8059                            cx,
 8060                        )
 8061                    })?
 8062                    .await
 8063                    .ok();
 8064            }
 8065        }
 8066
 8067        // return ok, we showed the error to the user.
 8068        anyhow::Ok(())
 8069    })
 8070}
 8071
 8072pub async fn get_any_active_workspace(
 8073    app_state: Arc<AppState>,
 8074    mut cx: AsyncApp,
 8075) -> anyhow::Result<WindowHandle<Workspace>> {
 8076    // find an existing workspace to focus and show call controls
 8077    let active_window = activate_any_workspace_window(&mut cx);
 8078    if active_window.is_none() {
 8079        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))
 8080            .await?;
 8081    }
 8082    activate_any_workspace_window(&mut cx).context("could not open zed")
 8083}
 8084
 8085fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 8086    cx.update(|cx| {
 8087        if let Some(workspace_window) = cx
 8088            .active_window()
 8089            .and_then(|window| window.downcast::<Workspace>())
 8090        {
 8091            return Some(workspace_window);
 8092        }
 8093
 8094        for window in cx.windows() {
 8095            if let Some(workspace_window) = window.downcast::<Workspace>() {
 8096                workspace_window
 8097                    .update(cx, |_, window, _| window.activate_window())
 8098                    .ok();
 8099                return Some(workspace_window);
 8100            }
 8101        }
 8102        None
 8103    })
 8104}
 8105
 8106pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 8107    cx.windows()
 8108        .into_iter()
 8109        .filter_map(|window| window.downcast::<Workspace>())
 8110        .filter(|workspace| {
 8111            workspace
 8112                .read(cx)
 8113                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 8114        })
 8115        .collect()
 8116}
 8117
 8118#[derive(Default)]
 8119pub struct OpenOptions {
 8120    pub visible: Option<OpenVisible>,
 8121    pub focus: Option<bool>,
 8122    pub open_new_workspace: Option<bool>,
 8123    pub prefer_focused_window: bool,
 8124    pub replace_window: Option<WindowHandle<Workspace>>,
 8125    pub env: Option<HashMap<String, String>>,
 8126}
 8127
 8128#[allow(clippy::type_complexity)]
 8129pub fn open_paths(
 8130    abs_paths: &[PathBuf],
 8131    app_state: Arc<AppState>,
 8132    open_options: OpenOptions,
 8133    cx: &mut App,
 8134) -> Task<
 8135    anyhow::Result<(
 8136        WindowHandle<Workspace>,
 8137        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8138    )>,
 8139> {
 8140    let abs_paths = abs_paths.to_vec();
 8141    let mut existing = None;
 8142    let mut best_match = None;
 8143    let mut open_visible = OpenVisible::All;
 8144    #[cfg(target_os = "windows")]
 8145    let wsl_path = abs_paths
 8146        .iter()
 8147        .find_map(|p| util::paths::WslPath::from_path(p));
 8148
 8149    cx.spawn(async move |cx| {
 8150        if open_options.open_new_workspace != Some(true) {
 8151            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8152            let all_metadatas = futures::future::join_all(all_paths)
 8153                .await
 8154                .into_iter()
 8155                .filter_map(|result| result.ok().flatten())
 8156                .collect::<Vec<_>>();
 8157
 8158            cx.update(|cx| {
 8159                for window in local_workspace_windows(cx) {
 8160                    if let Ok(workspace) = window.read(cx) {
 8161                        let m = workspace.project.read(cx).visibility_for_paths(
 8162                            &abs_paths,
 8163                            &all_metadatas,
 8164                            open_options.open_new_workspace == None,
 8165                            cx,
 8166                        );
 8167                        if m > best_match {
 8168                            existing = Some(window);
 8169                            best_match = m;
 8170                        } else if best_match.is_none()
 8171                            && open_options.open_new_workspace == Some(false)
 8172                        {
 8173                            existing = Some(window)
 8174                        }
 8175                    }
 8176                }
 8177            });
 8178
 8179            if open_options.open_new_workspace.is_none()
 8180                && (existing.is_none() || open_options.prefer_focused_window)
 8181                && all_metadatas.iter().all(|file| !file.is_dir)
 8182            {
 8183                cx.update(|cx| {
 8184                    if let Some(window) = cx
 8185                        .active_window()
 8186                        .and_then(|window| window.downcast::<Workspace>())
 8187                        && let Ok(workspace) = window.read(cx)
 8188                    {
 8189                        let project = workspace.project().read(cx);
 8190                        if project.is_local() && !project.is_via_collab() {
 8191                            existing = Some(window);
 8192                            open_visible = OpenVisible::None;
 8193                            return;
 8194                        }
 8195                    }
 8196                    for window in local_workspace_windows(cx) {
 8197                        if let Ok(workspace) = window.read(cx) {
 8198                            let project = workspace.project().read(cx);
 8199                            if project.is_via_collab() {
 8200                                continue;
 8201                            }
 8202                            existing = Some(window);
 8203                            open_visible = OpenVisible::None;
 8204                            break;
 8205                        }
 8206                    }
 8207                });
 8208            }
 8209        }
 8210
 8211        let result = if let Some(existing) = existing {
 8212            let open_task = existing
 8213                .update(cx, |workspace, window, cx| {
 8214                    window.activate_window();
 8215                    workspace.open_paths(
 8216                        abs_paths,
 8217                        OpenOptions {
 8218                            visible: Some(open_visible),
 8219                            ..Default::default()
 8220                        },
 8221                        None,
 8222                        window,
 8223                        cx,
 8224                    )
 8225                })?
 8226                .await;
 8227
 8228            _ = existing.update(cx, |workspace, _, cx| {
 8229                for item in open_task.iter().flatten() {
 8230                    if let Err(e) = item {
 8231                        workspace.show_error(&e, cx);
 8232                    }
 8233                }
 8234            });
 8235
 8236            Ok((existing, open_task))
 8237        } else {
 8238            cx.update(move |cx| {
 8239                Workspace::new_local(
 8240                    abs_paths,
 8241                    app_state.clone(),
 8242                    open_options.replace_window,
 8243                    open_options.env,
 8244                    None,
 8245                    cx,
 8246                )
 8247            })
 8248            .await
 8249        };
 8250
 8251        #[cfg(target_os = "windows")]
 8252        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8253            && let Ok((workspace, _)) = &result
 8254        {
 8255            workspace
 8256                .update(cx, move |workspace, _window, cx| {
 8257                    struct OpenInWsl;
 8258                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8259                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8260                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8261                        cx.new(move |cx| {
 8262                            MessageNotification::new(msg, cx)
 8263                                .primary_message("Open in WSL")
 8264                                .primary_icon(IconName::FolderOpen)
 8265                                .primary_on_click(move |window, cx| {
 8266                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8267                                            distro: remote::WslConnectionOptions {
 8268                                                    distro_name: distro.clone(),
 8269                                                user: None,
 8270                                            },
 8271                                            paths: vec![path.clone().into()],
 8272                                        }), cx)
 8273                                })
 8274                        })
 8275                    });
 8276                })
 8277                .unwrap();
 8278        };
 8279        result
 8280    })
 8281}
 8282
 8283pub fn open_new(
 8284    open_options: OpenOptions,
 8285    app_state: Arc<AppState>,
 8286    cx: &mut App,
 8287    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8288) -> Task<anyhow::Result<()>> {
 8289    let task = Workspace::new_local(
 8290        Vec::new(),
 8291        app_state,
 8292        None,
 8293        open_options.env,
 8294        Some(Box::new(init)),
 8295        cx,
 8296    );
 8297    cx.spawn(async move |_cx| {
 8298        let (_workspace, _opened_paths) = task.await?;
 8299        // Init callback is called synchronously during workspace creation
 8300        Ok(())
 8301    })
 8302}
 8303
 8304pub fn create_and_open_local_file(
 8305    path: &'static Path,
 8306    window: &mut Window,
 8307    cx: &mut Context<Workspace>,
 8308    default_content: impl 'static + Send + FnOnce() -> Rope,
 8309) -> Task<Result<Box<dyn ItemHandle>>> {
 8310    cx.spawn_in(window, async move |workspace, cx| {
 8311        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8312        if !fs.is_file(path).await {
 8313            fs.create_file(path, Default::default()).await?;
 8314            fs.save(path, &default_content(), Default::default())
 8315                .await?;
 8316        }
 8317
 8318        workspace
 8319            .update_in(cx, |workspace, window, cx| {
 8320                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 8321                    let path = workspace
 8322                        .project
 8323                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 8324                    cx.spawn_in(window, async move |workspace, cx| {
 8325                        let path = path.await?;
 8326                        let mut items = workspace
 8327                            .update_in(cx, |workspace, window, cx| {
 8328                                workspace.open_paths(
 8329                                    vec![path.to_path_buf()],
 8330                                    OpenOptions {
 8331                                        visible: Some(OpenVisible::None),
 8332                                        ..Default::default()
 8333                                    },
 8334                                    None,
 8335                                    window,
 8336                                    cx,
 8337                                )
 8338                            })?
 8339                            .await;
 8340                        let item = items.pop().flatten();
 8341                        item.with_context(|| format!("path {path:?} is not a file"))?
 8342                    })
 8343                })
 8344            })?
 8345            .await?
 8346            .await
 8347    })
 8348}
 8349
 8350pub fn open_remote_project_with_new_connection(
 8351    window: WindowHandle<Workspace>,
 8352    remote_connection: Arc<dyn RemoteConnection>,
 8353    cancel_rx: oneshot::Receiver<()>,
 8354    delegate: Arc<dyn RemoteClientDelegate>,
 8355    app_state: Arc<AppState>,
 8356    paths: Vec<PathBuf>,
 8357    cx: &mut App,
 8358) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8359    cx.spawn(async move |cx| {
 8360        let (workspace_id, serialized_workspace) =
 8361            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8362                .await?;
 8363
 8364        let session = match cx
 8365            .update(|cx| {
 8366                remote::RemoteClient::new(
 8367                    ConnectionIdentifier::Workspace(workspace_id.0),
 8368                    remote_connection,
 8369                    cancel_rx,
 8370                    delegate,
 8371                    cx,
 8372                )
 8373            })
 8374            .await?
 8375        {
 8376            Some(result) => result,
 8377            None => return Ok(Vec::new()),
 8378        };
 8379
 8380        let project = cx.update(|cx| {
 8381            project::Project::remote(
 8382                session,
 8383                app_state.client.clone(),
 8384                app_state.node_runtime.clone(),
 8385                app_state.user_store.clone(),
 8386                app_state.languages.clone(),
 8387                app_state.fs.clone(),
 8388                true,
 8389                cx,
 8390            )
 8391        });
 8392
 8393        open_remote_project_inner(
 8394            project,
 8395            paths,
 8396            workspace_id,
 8397            serialized_workspace,
 8398            app_state,
 8399            window,
 8400            cx,
 8401        )
 8402        .await
 8403    })
 8404}
 8405
 8406pub fn open_remote_project_with_existing_connection(
 8407    connection_options: RemoteConnectionOptions,
 8408    project: Entity<Project>,
 8409    paths: Vec<PathBuf>,
 8410    app_state: Arc<AppState>,
 8411    window: WindowHandle<Workspace>,
 8412    cx: &mut AsyncApp,
 8413) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8414    cx.spawn(async move |cx| {
 8415        let (workspace_id, serialized_workspace) =
 8416            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8417
 8418        open_remote_project_inner(
 8419            project,
 8420            paths,
 8421            workspace_id,
 8422            serialized_workspace,
 8423            app_state,
 8424            window,
 8425            cx,
 8426        )
 8427        .await
 8428    })
 8429}
 8430
 8431async fn open_remote_project_inner(
 8432    project: Entity<Project>,
 8433    paths: Vec<PathBuf>,
 8434    workspace_id: WorkspaceId,
 8435    serialized_workspace: Option<SerializedWorkspace>,
 8436    app_state: Arc<AppState>,
 8437    window: WindowHandle<Workspace>,
 8438    cx: &mut AsyncApp,
 8439) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8440    let toolchains = DB.toolchains(workspace_id).await?;
 8441    for (toolchain, worktree_path, path) in toolchains {
 8442        project
 8443            .update(cx, |this, cx| {
 8444                let Some(worktree_id) =
 8445                    this.find_worktree(&worktree_path, cx)
 8446                        .and_then(|(worktree, rel_path)| {
 8447                            if rel_path.is_empty() {
 8448                                Some(worktree.read(cx).id())
 8449                            } else {
 8450                                None
 8451                            }
 8452                        })
 8453                else {
 8454                    return Task::ready(None);
 8455                };
 8456
 8457                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8458            })
 8459            .await;
 8460    }
 8461    let mut project_paths_to_open = vec![];
 8462    let mut project_path_errors = vec![];
 8463
 8464    for path in paths {
 8465        let result = cx
 8466            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 8467            .await;
 8468        match result {
 8469            Ok((_, project_path)) => {
 8470                project_paths_to_open.push((path.clone(), Some(project_path)));
 8471            }
 8472            Err(error) => {
 8473                project_path_errors.push(error);
 8474            }
 8475        };
 8476    }
 8477
 8478    if project_paths_to_open.is_empty() {
 8479        return Err(project_path_errors.pop().context("no paths given")?);
 8480    }
 8481
 8482    if let Some(detach_session_task) = window
 8483        .update(cx, |_workspace, window, cx| {
 8484            cx.spawn_in(window, async move |this, cx| {
 8485                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8486            })
 8487        })
 8488        .ok()
 8489    {
 8490        detach_session_task.await.ok();
 8491    }
 8492
 8493    cx.update_window(window.into(), |_, window, cx| {
 8494        window.replace_root(cx, |window, cx| {
 8495            telemetry::event!("SSH Project Opened");
 8496
 8497            let mut workspace =
 8498                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8499            workspace.update_history(cx);
 8500
 8501            if let Some(ref serialized) = serialized_workspace {
 8502                workspace.centered_layout = serialized.centered_layout;
 8503            }
 8504
 8505            workspace
 8506        });
 8507    })?;
 8508
 8509    let items = window
 8510        .update(cx, |_, window, cx| {
 8511            window.activate_window();
 8512            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8513        })?
 8514        .await?;
 8515
 8516    window.update(cx, |workspace, _, cx| {
 8517        for error in project_path_errors {
 8518            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8519                if let Some(path) = error.error_tag("path") {
 8520                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8521                }
 8522            } else {
 8523                workspace.show_error(&error, cx)
 8524            }
 8525        }
 8526    })?;
 8527
 8528    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8529}
 8530
 8531fn deserialize_remote_project(
 8532    connection_options: RemoteConnectionOptions,
 8533    paths: Vec<PathBuf>,
 8534    cx: &AsyncApp,
 8535) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8536    cx.background_spawn(async move {
 8537        let remote_connection_id = persistence::DB
 8538            .get_or_create_remote_connection(connection_options)
 8539            .await?;
 8540
 8541        let serialized_workspace =
 8542            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8543
 8544        let workspace_id = if let Some(workspace_id) =
 8545            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8546        {
 8547            workspace_id
 8548        } else {
 8549            persistence::DB.next_id().await?
 8550        };
 8551
 8552        Ok((workspace_id, serialized_workspace))
 8553    })
 8554}
 8555
 8556pub fn join_in_room_project(
 8557    project_id: u64,
 8558    follow_user_id: u64,
 8559    app_state: Arc<AppState>,
 8560    cx: &mut App,
 8561) -> Task<Result<()>> {
 8562    let windows = cx.windows();
 8563    cx.spawn(async move |cx| {
 8564        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8565            window_handle
 8566                .downcast::<Workspace>()
 8567                .and_then(|window_handle| {
 8568                    window_handle
 8569                        .update(cx, |workspace, _window, cx| {
 8570                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8571                                Some(window_handle)
 8572                            } else {
 8573                                None
 8574                            }
 8575                        })
 8576                        .unwrap_or(None)
 8577                })
 8578        });
 8579
 8580        let workspace = if let Some(existing_workspace) = existing_workspace {
 8581            existing_workspace
 8582        } else {
 8583            let active_call = cx.update(|cx| ActiveCall::global(cx));
 8584            let room = active_call
 8585                .read_with(cx, |call, _| call.room().cloned())
 8586                .context("not in a call")?;
 8587            let project = room
 8588                .update(cx, |room, cx| {
 8589                    room.join_project(
 8590                        project_id,
 8591                        app_state.languages.clone(),
 8592                        app_state.fs.clone(),
 8593                        cx,
 8594                    )
 8595                })
 8596                .await?;
 8597
 8598            let window_bounds_override = window_bounds_env_override();
 8599            cx.update(|cx| {
 8600                let mut options = (app_state.build_window_options)(None, cx);
 8601                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8602                cx.open_window(options, |window, cx| {
 8603                    cx.new(|cx| {
 8604                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8605                    })
 8606                })
 8607            })?
 8608        };
 8609
 8610        workspace.update(cx, |workspace, window, cx| {
 8611            cx.activate(true);
 8612            window.activate_window();
 8613
 8614            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8615                let follow_peer_id = room
 8616                    .read(cx)
 8617                    .remote_participants()
 8618                    .iter()
 8619                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8620                    .map(|(_, p)| p.peer_id)
 8621                    .or_else(|| {
 8622                        // If we couldn't follow the given user, follow the host instead.
 8623                        let collaborator = workspace
 8624                            .project()
 8625                            .read(cx)
 8626                            .collaborators()
 8627                            .values()
 8628                            .find(|collaborator| collaborator.is_host)?;
 8629                        Some(collaborator.peer_id)
 8630                    });
 8631
 8632                if let Some(follow_peer_id) = follow_peer_id {
 8633                    workspace.follow(follow_peer_id, window, cx);
 8634                }
 8635            }
 8636        })?;
 8637
 8638        anyhow::Ok(())
 8639    })
 8640}
 8641
 8642pub fn reload(cx: &mut App) {
 8643    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8644    let mut workspace_windows = cx
 8645        .windows()
 8646        .into_iter()
 8647        .filter_map(|window| window.downcast::<Workspace>())
 8648        .collect::<Vec<_>>();
 8649
 8650    // If multiple windows have unsaved changes, and need a save prompt,
 8651    // prompt in the active window before switching to a different window.
 8652    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8653
 8654    let mut prompt = None;
 8655    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8656        prompt = window
 8657            .update(cx, |_, window, cx| {
 8658                window.prompt(
 8659                    PromptLevel::Info,
 8660                    "Are you sure you want to restart?",
 8661                    None,
 8662                    &["Restart", "Cancel"],
 8663                    cx,
 8664                )
 8665            })
 8666            .ok();
 8667    }
 8668
 8669    cx.spawn(async move |cx| {
 8670        if let Some(prompt) = prompt {
 8671            let answer = prompt.await?;
 8672            if answer != 0 {
 8673                return anyhow::Ok(());
 8674            }
 8675        }
 8676
 8677        // If the user cancels any save prompt, then keep the app open.
 8678        for window in workspace_windows {
 8679            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8680                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8681            }) && !should_close.await?
 8682            {
 8683                return anyhow::Ok(());
 8684            }
 8685        }
 8686        cx.update(|cx| cx.restart());
 8687        anyhow::Ok(())
 8688    })
 8689    .detach_and_log_err(cx);
 8690}
 8691
 8692fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8693    let mut parts = value.split(',');
 8694    let x: usize = parts.next()?.parse().ok()?;
 8695    let y: usize = parts.next()?.parse().ok()?;
 8696    Some(point(px(x as f32), px(y as f32)))
 8697}
 8698
 8699fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8700    let mut parts = value.split(',');
 8701    let width: usize = parts.next()?.parse().ok()?;
 8702    let height: usize = parts.next()?.parse().ok()?;
 8703    Some(size(px(width as f32), px(height as f32)))
 8704}
 8705
 8706/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8707pub fn client_side_decorations(
 8708    element: impl IntoElement,
 8709    window: &mut Window,
 8710    cx: &mut App,
 8711) -> Stateful<Div> {
 8712    const BORDER_SIZE: Pixels = px(1.0);
 8713    let decorations = window.window_decorations();
 8714
 8715    match decorations {
 8716        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8717        Decorations::Server => window.set_client_inset(px(0.0)),
 8718    }
 8719
 8720    struct GlobalResizeEdge(ResizeEdge);
 8721    impl Global for GlobalResizeEdge {}
 8722
 8723    div()
 8724        .id("window-backdrop")
 8725        .bg(transparent_black())
 8726        .map(|div| match decorations {
 8727            Decorations::Server => div,
 8728            Decorations::Client { tiling, .. } => div
 8729                .when(!(tiling.top || tiling.right), |div| {
 8730                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8731                })
 8732                .when(!(tiling.top || tiling.left), |div| {
 8733                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8734                })
 8735                .when(!(tiling.bottom || tiling.right), |div| {
 8736                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8737                })
 8738                .when(!(tiling.bottom || tiling.left), |div| {
 8739                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8740                })
 8741                .when(!tiling.top, |div| {
 8742                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8743                })
 8744                .when(!tiling.bottom, |div| {
 8745                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8746                })
 8747                .when(!tiling.left, |div| {
 8748                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8749                })
 8750                .when(!tiling.right, |div| {
 8751                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8752                })
 8753                .on_mouse_move(move |e, window, cx| {
 8754                    let size = window.window_bounds().get_bounds().size;
 8755                    let pos = e.position;
 8756
 8757                    let new_edge =
 8758                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8759
 8760                    let edge = cx.try_global::<GlobalResizeEdge>();
 8761                    if new_edge != edge.map(|edge| edge.0) {
 8762                        window
 8763                            .window_handle()
 8764                            .update(cx, |workspace, _, cx| {
 8765                                cx.notify(workspace.entity_id());
 8766                            })
 8767                            .ok();
 8768                    }
 8769                })
 8770                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8771                    let size = window.window_bounds().get_bounds().size;
 8772                    let pos = e.position;
 8773
 8774                    let edge = match resize_edge(
 8775                        pos,
 8776                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8777                        size,
 8778                        tiling,
 8779                    ) {
 8780                        Some(value) => value,
 8781                        None => return,
 8782                    };
 8783
 8784                    window.start_window_resize(edge);
 8785                }),
 8786        })
 8787        .size_full()
 8788        .child(
 8789            div()
 8790                .cursor(CursorStyle::Arrow)
 8791                .map(|div| match decorations {
 8792                    Decorations::Server => div,
 8793                    Decorations::Client { tiling } => div
 8794                        .border_color(cx.theme().colors().border)
 8795                        .when(!(tiling.top || tiling.right), |div| {
 8796                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8797                        })
 8798                        .when(!(tiling.top || tiling.left), |div| {
 8799                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8800                        })
 8801                        .when(!(tiling.bottom || tiling.right), |div| {
 8802                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8803                        })
 8804                        .when(!(tiling.bottom || tiling.left), |div| {
 8805                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8806                        })
 8807                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8808                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8809                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8810                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8811                        .when(!tiling.is_tiled(), |div| {
 8812                            div.shadow(vec![gpui::BoxShadow {
 8813                                color: Hsla {
 8814                                    h: 0.,
 8815                                    s: 0.,
 8816                                    l: 0.,
 8817                                    a: 0.4,
 8818                                },
 8819                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8820                                spread_radius: px(0.),
 8821                                offset: point(px(0.0), px(0.0)),
 8822                            }])
 8823                        }),
 8824                })
 8825                .on_mouse_move(|_e, _, cx| {
 8826                    cx.stop_propagation();
 8827                })
 8828                .size_full()
 8829                .child(element),
 8830        )
 8831        .map(|div| match decorations {
 8832            Decorations::Server => div,
 8833            Decorations::Client { tiling, .. } => div.child(
 8834                canvas(
 8835                    |_bounds, window, _| {
 8836                        window.insert_hitbox(
 8837                            Bounds::new(
 8838                                point(px(0.0), px(0.0)),
 8839                                window.window_bounds().get_bounds().size,
 8840                            ),
 8841                            HitboxBehavior::Normal,
 8842                        )
 8843                    },
 8844                    move |_bounds, hitbox, window, cx| {
 8845                        let mouse = window.mouse_position();
 8846                        let size = window.window_bounds().get_bounds().size;
 8847                        let Some(edge) =
 8848                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8849                        else {
 8850                            return;
 8851                        };
 8852                        cx.set_global(GlobalResizeEdge(edge));
 8853                        window.set_cursor_style(
 8854                            match edge {
 8855                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8856                                ResizeEdge::Left | ResizeEdge::Right => {
 8857                                    CursorStyle::ResizeLeftRight
 8858                                }
 8859                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8860                                    CursorStyle::ResizeUpLeftDownRight
 8861                                }
 8862                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8863                                    CursorStyle::ResizeUpRightDownLeft
 8864                                }
 8865                            },
 8866                            &hitbox,
 8867                        );
 8868                    },
 8869                )
 8870                .size_full()
 8871                .absolute(),
 8872            ),
 8873        })
 8874}
 8875
 8876fn resize_edge(
 8877    pos: Point<Pixels>,
 8878    shadow_size: Pixels,
 8879    window_size: Size<Pixels>,
 8880    tiling: Tiling,
 8881) -> Option<ResizeEdge> {
 8882    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8883    if bounds.contains(&pos) {
 8884        return None;
 8885    }
 8886
 8887    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8888    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8889    if !tiling.top && top_left_bounds.contains(&pos) {
 8890        return Some(ResizeEdge::TopLeft);
 8891    }
 8892
 8893    let top_right_bounds = Bounds::new(
 8894        Point::new(window_size.width - corner_size.width, px(0.)),
 8895        corner_size,
 8896    );
 8897    if !tiling.top && top_right_bounds.contains(&pos) {
 8898        return Some(ResizeEdge::TopRight);
 8899    }
 8900
 8901    let bottom_left_bounds = Bounds::new(
 8902        Point::new(px(0.), window_size.height - corner_size.height),
 8903        corner_size,
 8904    );
 8905    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8906        return Some(ResizeEdge::BottomLeft);
 8907    }
 8908
 8909    let bottom_right_bounds = Bounds::new(
 8910        Point::new(
 8911            window_size.width - corner_size.width,
 8912            window_size.height - corner_size.height,
 8913        ),
 8914        corner_size,
 8915    );
 8916    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8917        return Some(ResizeEdge::BottomRight);
 8918    }
 8919
 8920    if !tiling.top && pos.y < shadow_size {
 8921        Some(ResizeEdge::Top)
 8922    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8923        Some(ResizeEdge::Bottom)
 8924    } else if !tiling.left && pos.x < shadow_size {
 8925        Some(ResizeEdge::Left)
 8926    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8927        Some(ResizeEdge::Right)
 8928    } else {
 8929        None
 8930    }
 8931}
 8932
 8933fn join_pane_into_active(
 8934    active_pane: &Entity<Pane>,
 8935    pane: &Entity<Pane>,
 8936    window: &mut Window,
 8937    cx: &mut App,
 8938) {
 8939    if pane == active_pane {
 8940    } else if pane.read(cx).items_len() == 0 {
 8941        pane.update(cx, |_, cx| {
 8942            cx.emit(pane::Event::Remove {
 8943                focus_on_pane: None,
 8944            });
 8945        })
 8946    } else {
 8947        move_all_items(pane, active_pane, window, cx);
 8948    }
 8949}
 8950
 8951fn move_all_items(
 8952    from_pane: &Entity<Pane>,
 8953    to_pane: &Entity<Pane>,
 8954    window: &mut Window,
 8955    cx: &mut App,
 8956) {
 8957    let destination_is_different = from_pane != to_pane;
 8958    let mut moved_items = 0;
 8959    for (item_ix, item_handle) in from_pane
 8960        .read(cx)
 8961        .items()
 8962        .enumerate()
 8963        .map(|(ix, item)| (ix, item.clone()))
 8964        .collect::<Vec<_>>()
 8965    {
 8966        let ix = item_ix - moved_items;
 8967        if destination_is_different {
 8968            // Close item from previous pane
 8969            from_pane.update(cx, |source, cx| {
 8970                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8971            });
 8972            moved_items += 1;
 8973        }
 8974
 8975        // This automatically removes duplicate items in the pane
 8976        to_pane.update(cx, |destination, cx| {
 8977            destination.add_item(item_handle, true, true, None, window, cx);
 8978            window.focus(&destination.focus_handle(cx), cx)
 8979        });
 8980    }
 8981}
 8982
 8983pub fn move_item(
 8984    source: &Entity<Pane>,
 8985    destination: &Entity<Pane>,
 8986    item_id_to_move: EntityId,
 8987    destination_index: usize,
 8988    activate: bool,
 8989    window: &mut Window,
 8990    cx: &mut App,
 8991) {
 8992    let Some((item_ix, item_handle)) = source
 8993        .read(cx)
 8994        .items()
 8995        .enumerate()
 8996        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8997        .map(|(ix, item)| (ix, item.clone()))
 8998    else {
 8999        // Tab was closed during drag
 9000        return;
 9001    };
 9002
 9003    if source != destination {
 9004        // Close item from previous pane
 9005        source.update(cx, |source, cx| {
 9006            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9007        });
 9008    }
 9009
 9010    // This automatically removes duplicate items in the pane
 9011    destination.update(cx, |destination, cx| {
 9012        destination.add_item_inner(
 9013            item_handle,
 9014            activate,
 9015            activate,
 9016            activate,
 9017            Some(destination_index),
 9018            window,
 9019            cx,
 9020        );
 9021        if activate {
 9022            window.focus(&destination.focus_handle(cx), cx)
 9023        }
 9024    });
 9025}
 9026
 9027pub fn move_active_item(
 9028    source: &Entity<Pane>,
 9029    destination: &Entity<Pane>,
 9030    focus_destination: bool,
 9031    close_if_empty: bool,
 9032    window: &mut Window,
 9033    cx: &mut App,
 9034) {
 9035    if source == destination {
 9036        return;
 9037    }
 9038    let Some(active_item) = source.read(cx).active_item() else {
 9039        return;
 9040    };
 9041    source.update(cx, |source_pane, cx| {
 9042        let item_id = active_item.item_id();
 9043        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9044        destination.update(cx, |target_pane, cx| {
 9045            target_pane.add_item(
 9046                active_item,
 9047                focus_destination,
 9048                focus_destination,
 9049                Some(target_pane.items_len()),
 9050                window,
 9051                cx,
 9052            );
 9053        });
 9054    });
 9055}
 9056
 9057pub fn clone_active_item(
 9058    workspace_id: Option<WorkspaceId>,
 9059    source: &Entity<Pane>,
 9060    destination: &Entity<Pane>,
 9061    focus_destination: bool,
 9062    window: &mut Window,
 9063    cx: &mut App,
 9064) {
 9065    if source == destination {
 9066        return;
 9067    }
 9068    let Some(active_item) = source.read(cx).active_item() else {
 9069        return;
 9070    };
 9071    if !active_item.can_split(cx) {
 9072        return;
 9073    }
 9074    let destination = destination.downgrade();
 9075    let task = active_item.clone_on_split(workspace_id, window, cx);
 9076    window
 9077        .spawn(cx, async move |cx| {
 9078            let Some(clone) = task.await else {
 9079                return;
 9080            };
 9081            destination
 9082                .update_in(cx, |target_pane, window, cx| {
 9083                    target_pane.add_item(
 9084                        clone,
 9085                        focus_destination,
 9086                        focus_destination,
 9087                        Some(target_pane.items_len()),
 9088                        window,
 9089                        cx,
 9090                    );
 9091                })
 9092                .log_err();
 9093        })
 9094        .detach();
 9095}
 9096
 9097#[derive(Debug)]
 9098pub struct WorkspacePosition {
 9099    pub window_bounds: Option<WindowBounds>,
 9100    pub display: Option<Uuid>,
 9101    pub centered_layout: bool,
 9102}
 9103
 9104pub fn remote_workspace_position_from_db(
 9105    connection_options: RemoteConnectionOptions,
 9106    paths_to_open: &[PathBuf],
 9107    cx: &App,
 9108) -> Task<Result<WorkspacePosition>> {
 9109    let paths = paths_to_open.to_vec();
 9110
 9111    cx.background_spawn(async move {
 9112        let remote_connection_id = persistence::DB
 9113            .get_or_create_remote_connection(connection_options)
 9114            .await
 9115            .context("fetching serialized ssh project")?;
 9116        let serialized_workspace =
 9117            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9118
 9119        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9120            (Some(WindowBounds::Windowed(bounds)), None)
 9121        } else {
 9122            let restorable_bounds = serialized_workspace
 9123                .as_ref()
 9124                .and_then(|workspace| {
 9125                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9126                })
 9127                .or_else(|| persistence::read_default_window_bounds());
 9128
 9129            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9130                (Some(serialized_bounds), Some(serialized_display))
 9131            } else {
 9132                (None, None)
 9133            }
 9134        };
 9135
 9136        let centered_layout = serialized_workspace
 9137            .as_ref()
 9138            .map(|w| w.centered_layout)
 9139            .unwrap_or(false);
 9140
 9141        Ok(WorkspacePosition {
 9142            window_bounds,
 9143            display,
 9144            centered_layout,
 9145        })
 9146    })
 9147}
 9148
 9149pub fn with_active_or_new_workspace(
 9150    cx: &mut App,
 9151    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9152) {
 9153    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 9154        Some(workspace) => {
 9155            cx.defer(move |cx| {
 9156                workspace
 9157                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 9158                    .log_err();
 9159            });
 9160        }
 9161        None => {
 9162            let app_state = AppState::global(cx);
 9163            if let Some(app_state) = app_state.upgrade() {
 9164                open_new(
 9165                    OpenOptions::default(),
 9166                    app_state,
 9167                    cx,
 9168                    move |workspace, window, cx| f(workspace, window, cx),
 9169                )
 9170                .detach_and_log_err(cx);
 9171            }
 9172        }
 9173    }
 9174}
 9175
 9176#[cfg(test)]
 9177mod tests {
 9178    use std::{cell::RefCell, rc::Rc};
 9179
 9180    use super::*;
 9181    use crate::{
 9182        dock::{PanelEvent, test::TestPanel},
 9183        item::{
 9184            ItemBufferKind, ItemEvent,
 9185            test::{TestItem, TestProjectItem},
 9186        },
 9187    };
 9188    use fs::FakeFs;
 9189    use gpui::{
 9190        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9191        UpdateGlobal, VisualTestContext, px,
 9192    };
 9193    use project::{Project, ProjectEntryId};
 9194    use serde_json::json;
 9195    use settings::SettingsStore;
 9196    use util::rel_path::rel_path;
 9197
 9198    #[gpui::test]
 9199    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9200        init_test(cx);
 9201
 9202        let fs = FakeFs::new(cx.executor());
 9203        let project = Project::test(fs, [], cx).await;
 9204        let (workspace, cx) =
 9205            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9206
 9207        // Adding an item with no ambiguity renders the tab without detail.
 9208        let item1 = cx.new(|cx| {
 9209            let mut item = TestItem::new(cx);
 9210            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9211            item
 9212        });
 9213        workspace.update_in(cx, |workspace, window, cx| {
 9214            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9215        });
 9216        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9217
 9218        // Adding an item that creates ambiguity increases the level of detail on
 9219        // both tabs.
 9220        let item2 = cx.new_window_entity(|_window, cx| {
 9221            let mut item = TestItem::new(cx);
 9222            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9223            item
 9224        });
 9225        workspace.update_in(cx, |workspace, window, cx| {
 9226            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9227        });
 9228        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9229        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9230
 9231        // Adding an item that creates ambiguity increases the level of detail only
 9232        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9233        // we stop at the highest detail available.
 9234        let item3 = cx.new(|cx| {
 9235            let mut item = TestItem::new(cx);
 9236            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9237            item
 9238        });
 9239        workspace.update_in(cx, |workspace, window, cx| {
 9240            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9241        });
 9242        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9243        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9244        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9245    }
 9246
 9247    #[gpui::test]
 9248    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9249        init_test(cx);
 9250
 9251        let fs = FakeFs::new(cx.executor());
 9252        fs.insert_tree(
 9253            "/root1",
 9254            json!({
 9255                "one.txt": "",
 9256                "two.txt": "",
 9257            }),
 9258        )
 9259        .await;
 9260        fs.insert_tree(
 9261            "/root2",
 9262            json!({
 9263                "three.txt": "",
 9264            }),
 9265        )
 9266        .await;
 9267
 9268        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9269        let (workspace, cx) =
 9270            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9271        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9272        let worktree_id = project.update(cx, |project, cx| {
 9273            project.worktrees(cx).next().unwrap().read(cx).id()
 9274        });
 9275
 9276        let item1 = cx.new(|cx| {
 9277            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9278        });
 9279        let item2 = cx.new(|cx| {
 9280            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9281        });
 9282
 9283        // Add an item to an empty pane
 9284        workspace.update_in(cx, |workspace, window, cx| {
 9285            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9286        });
 9287        project.update(cx, |project, cx| {
 9288            assert_eq!(
 9289                project.active_entry(),
 9290                project
 9291                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9292                    .map(|e| e.id)
 9293            );
 9294        });
 9295        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9296
 9297        // Add a second item to a non-empty pane
 9298        workspace.update_in(cx, |workspace, window, cx| {
 9299            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9300        });
 9301        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9302        project.update(cx, |project, cx| {
 9303            assert_eq!(
 9304                project.active_entry(),
 9305                project
 9306                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9307                    .map(|e| e.id)
 9308            );
 9309        });
 9310
 9311        // Close the active item
 9312        pane.update_in(cx, |pane, window, cx| {
 9313            pane.close_active_item(&Default::default(), window, cx)
 9314        })
 9315        .await
 9316        .unwrap();
 9317        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9318        project.update(cx, |project, cx| {
 9319            assert_eq!(
 9320                project.active_entry(),
 9321                project
 9322                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9323                    .map(|e| e.id)
 9324            );
 9325        });
 9326
 9327        // Add a project folder
 9328        project
 9329            .update(cx, |project, cx| {
 9330                project.find_or_create_worktree("root2", true, cx)
 9331            })
 9332            .await
 9333            .unwrap();
 9334        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9335
 9336        // Remove a project folder
 9337        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9338        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9339    }
 9340
 9341    #[gpui::test]
 9342    async fn test_close_window(cx: &mut TestAppContext) {
 9343        init_test(cx);
 9344
 9345        let fs = FakeFs::new(cx.executor());
 9346        fs.insert_tree("/root", json!({ "one": "" })).await;
 9347
 9348        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9349        let (workspace, cx) =
 9350            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9351
 9352        // When there are no dirty items, there's nothing to do.
 9353        let item1 = cx.new(TestItem::new);
 9354        workspace.update_in(cx, |w, window, cx| {
 9355            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9356        });
 9357        let task = workspace.update_in(cx, |w, window, cx| {
 9358            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9359        });
 9360        assert!(task.await.unwrap());
 9361
 9362        // When there are dirty untitled items, prompt to save each one. If the user
 9363        // cancels any prompt, then abort.
 9364        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9365        let item3 = cx.new(|cx| {
 9366            TestItem::new(cx)
 9367                .with_dirty(true)
 9368                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9369        });
 9370        workspace.update_in(cx, |w, window, cx| {
 9371            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9372            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9373        });
 9374        let task = workspace.update_in(cx, |w, window, cx| {
 9375            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9376        });
 9377        cx.executor().run_until_parked();
 9378        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9379        cx.executor().run_until_parked();
 9380        assert!(!cx.has_pending_prompt());
 9381        assert!(!task.await.unwrap());
 9382    }
 9383
 9384    #[gpui::test]
 9385    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9386        init_test(cx);
 9387
 9388        // Register TestItem as a serializable item
 9389        cx.update(|cx| {
 9390            register_serializable_item::<TestItem>(cx);
 9391        });
 9392
 9393        let fs = FakeFs::new(cx.executor());
 9394        fs.insert_tree("/root", json!({ "one": "" })).await;
 9395
 9396        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9397        let (workspace, cx) =
 9398            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9399
 9400        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9401        let item1 = cx.new(|cx| {
 9402            TestItem::new(cx)
 9403                .with_dirty(true)
 9404                .with_serialize(|| Some(Task::ready(Ok(()))))
 9405        });
 9406        let item2 = cx.new(|cx| {
 9407            TestItem::new(cx)
 9408                .with_dirty(true)
 9409                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9410                .with_serialize(|| Some(Task::ready(Ok(()))))
 9411        });
 9412        workspace.update_in(cx, |w, window, cx| {
 9413            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9414            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9415        });
 9416        let task = workspace.update_in(cx, |w, window, cx| {
 9417            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9418        });
 9419        assert!(task.await.unwrap());
 9420    }
 9421
 9422    #[gpui::test]
 9423    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9424        init_test(cx);
 9425
 9426        let fs = FakeFs::new(cx.executor());
 9427
 9428        let project = Project::test(fs, None, cx).await;
 9429        let (workspace, cx) =
 9430            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9431
 9432        let item1 = cx.new(|cx| {
 9433            TestItem::new(cx)
 9434                .with_dirty(true)
 9435                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9436        });
 9437        let item2 = cx.new(|cx| {
 9438            TestItem::new(cx)
 9439                .with_dirty(true)
 9440                .with_conflict(true)
 9441                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9442        });
 9443        let item3 = cx.new(|cx| {
 9444            TestItem::new(cx)
 9445                .with_dirty(true)
 9446                .with_conflict(true)
 9447                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9448        });
 9449        let item4 = cx.new(|cx| {
 9450            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9451                let project_item = TestProjectItem::new_untitled(cx);
 9452                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9453                project_item
 9454            }])
 9455        });
 9456        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9457            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9458            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9459            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9460            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9461            workspace.active_pane().clone()
 9462        });
 9463
 9464        let close_items = pane.update_in(cx, |pane, window, cx| {
 9465            pane.activate_item(1, true, true, window, cx);
 9466            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9467            let item1_id = item1.item_id();
 9468            let item3_id = item3.item_id();
 9469            let item4_id = item4.item_id();
 9470            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9471                [item1_id, item3_id, item4_id].contains(&id)
 9472            })
 9473        });
 9474        cx.executor().run_until_parked();
 9475
 9476        assert!(cx.has_pending_prompt());
 9477        cx.simulate_prompt_answer("Save all");
 9478
 9479        cx.executor().run_until_parked();
 9480
 9481        // Item 1 is saved. There's a prompt to save item 3.
 9482        pane.update(cx, |pane, cx| {
 9483            assert_eq!(item1.read(cx).save_count, 1);
 9484            assert_eq!(item1.read(cx).save_as_count, 0);
 9485            assert_eq!(item1.read(cx).reload_count, 0);
 9486            assert_eq!(pane.items_len(), 3);
 9487            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9488        });
 9489        assert!(cx.has_pending_prompt());
 9490
 9491        // Cancel saving item 3.
 9492        cx.simulate_prompt_answer("Discard");
 9493        cx.executor().run_until_parked();
 9494
 9495        // Item 3 is reloaded. There's a prompt to save item 4.
 9496        pane.update(cx, |pane, cx| {
 9497            assert_eq!(item3.read(cx).save_count, 0);
 9498            assert_eq!(item3.read(cx).save_as_count, 0);
 9499            assert_eq!(item3.read(cx).reload_count, 1);
 9500            assert_eq!(pane.items_len(), 2);
 9501            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9502        });
 9503
 9504        // There's a prompt for a path for item 4.
 9505        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9506        close_items.await.unwrap();
 9507
 9508        // The requested items are closed.
 9509        pane.update(cx, |pane, cx| {
 9510            assert_eq!(item4.read(cx).save_count, 0);
 9511            assert_eq!(item4.read(cx).save_as_count, 1);
 9512            assert_eq!(item4.read(cx).reload_count, 0);
 9513            assert_eq!(pane.items_len(), 1);
 9514            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9515        });
 9516    }
 9517
 9518    #[gpui::test]
 9519    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9520        init_test(cx);
 9521
 9522        let fs = FakeFs::new(cx.executor());
 9523        let project = Project::test(fs, [], cx).await;
 9524        let (workspace, cx) =
 9525            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9526
 9527        // Create several workspace items with single project entries, and two
 9528        // workspace items with multiple project entries.
 9529        let single_entry_items = (0..=4)
 9530            .map(|project_entry_id| {
 9531                cx.new(|cx| {
 9532                    TestItem::new(cx)
 9533                        .with_dirty(true)
 9534                        .with_project_items(&[dirty_project_item(
 9535                            project_entry_id,
 9536                            &format!("{project_entry_id}.txt"),
 9537                            cx,
 9538                        )])
 9539                })
 9540            })
 9541            .collect::<Vec<_>>();
 9542        let item_2_3 = cx.new(|cx| {
 9543            TestItem::new(cx)
 9544                .with_dirty(true)
 9545                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9546                .with_project_items(&[
 9547                    single_entry_items[2].read(cx).project_items[0].clone(),
 9548                    single_entry_items[3].read(cx).project_items[0].clone(),
 9549                ])
 9550        });
 9551        let item_3_4 = cx.new(|cx| {
 9552            TestItem::new(cx)
 9553                .with_dirty(true)
 9554                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9555                .with_project_items(&[
 9556                    single_entry_items[3].read(cx).project_items[0].clone(),
 9557                    single_entry_items[4].read(cx).project_items[0].clone(),
 9558                ])
 9559        });
 9560
 9561        // Create two panes that contain the following project entries:
 9562        //   left pane:
 9563        //     multi-entry items:   (2, 3)
 9564        //     single-entry items:  0, 2, 3, 4
 9565        //   right pane:
 9566        //     single-entry items:  4, 1
 9567        //     multi-entry items:   (3, 4)
 9568        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9569            let left_pane = workspace.active_pane().clone();
 9570            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9571            workspace.add_item_to_active_pane(
 9572                single_entry_items[0].boxed_clone(),
 9573                None,
 9574                true,
 9575                window,
 9576                cx,
 9577            );
 9578            workspace.add_item_to_active_pane(
 9579                single_entry_items[2].boxed_clone(),
 9580                None,
 9581                true,
 9582                window,
 9583                cx,
 9584            );
 9585            workspace.add_item_to_active_pane(
 9586                single_entry_items[3].boxed_clone(),
 9587                None,
 9588                true,
 9589                window,
 9590                cx,
 9591            );
 9592            workspace.add_item_to_active_pane(
 9593                single_entry_items[4].boxed_clone(),
 9594                None,
 9595                true,
 9596                window,
 9597                cx,
 9598            );
 9599
 9600            let right_pane =
 9601                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9602
 9603            let boxed_clone = single_entry_items[1].boxed_clone();
 9604            let right_pane = window.spawn(cx, async move |cx| {
 9605                right_pane.await.inspect(|right_pane| {
 9606                    right_pane
 9607                        .update_in(cx, |pane, window, cx| {
 9608                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9609                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9610                        })
 9611                        .unwrap();
 9612                })
 9613            });
 9614
 9615            (left_pane, right_pane)
 9616        });
 9617        let right_pane = right_pane.await.unwrap();
 9618        cx.focus(&right_pane);
 9619
 9620        let close = right_pane.update_in(cx, |pane, window, cx| {
 9621            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9622                .unwrap()
 9623        });
 9624        cx.executor().run_until_parked();
 9625
 9626        let msg = cx.pending_prompt().unwrap().0;
 9627        assert!(msg.contains("1.txt"));
 9628        assert!(!msg.contains("2.txt"));
 9629        assert!(!msg.contains("3.txt"));
 9630        assert!(!msg.contains("4.txt"));
 9631
 9632        // With best-effort close, cancelling item 1 keeps it open but items 4
 9633        // and (3,4) still close since their entries exist in left pane.
 9634        cx.simulate_prompt_answer("Cancel");
 9635        close.await;
 9636
 9637        right_pane.read_with(cx, |pane, _| {
 9638            assert_eq!(pane.items_len(), 1);
 9639        });
 9640
 9641        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9642        left_pane
 9643            .update_in(cx, |left_pane, window, cx| {
 9644                left_pane.close_item_by_id(
 9645                    single_entry_items[3].entity_id(),
 9646                    SaveIntent::Skip,
 9647                    window,
 9648                    cx,
 9649                )
 9650            })
 9651            .await
 9652            .unwrap();
 9653
 9654        let close = left_pane.update_in(cx, |pane, window, cx| {
 9655            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9656                .unwrap()
 9657        });
 9658        cx.executor().run_until_parked();
 9659
 9660        let details = cx.pending_prompt().unwrap().1;
 9661        assert!(details.contains("0.txt"));
 9662        assert!(details.contains("3.txt"));
 9663        assert!(details.contains("4.txt"));
 9664        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9665        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9666        // assert!(!details.contains("2.txt"));
 9667
 9668        cx.simulate_prompt_answer("Save all");
 9669        cx.executor().run_until_parked();
 9670        close.await;
 9671
 9672        left_pane.read_with(cx, |pane, _| {
 9673            assert_eq!(pane.items_len(), 0);
 9674        });
 9675    }
 9676
 9677    #[gpui::test]
 9678    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9679        init_test(cx);
 9680
 9681        let fs = FakeFs::new(cx.executor());
 9682        let project = Project::test(fs, [], cx).await;
 9683        let (workspace, cx) =
 9684            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9685        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9686
 9687        let item = cx.new(|cx| {
 9688            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9689        });
 9690        let item_id = item.entity_id();
 9691        workspace.update_in(cx, |workspace, window, cx| {
 9692            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9693        });
 9694
 9695        // Autosave on window change.
 9696        item.update(cx, |item, cx| {
 9697            SettingsStore::update_global(cx, |settings, cx| {
 9698                settings.update_user_settings(cx, |settings| {
 9699                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9700                })
 9701            });
 9702            item.is_dirty = true;
 9703        });
 9704
 9705        // Deactivating the window saves the file.
 9706        cx.deactivate_window();
 9707        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9708
 9709        // Re-activating the window doesn't save the file.
 9710        cx.update(|window, _| window.activate_window());
 9711        cx.executor().run_until_parked();
 9712        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9713
 9714        // Autosave on focus change.
 9715        item.update_in(cx, |item, window, cx| {
 9716            cx.focus_self(window);
 9717            SettingsStore::update_global(cx, |settings, cx| {
 9718                settings.update_user_settings(cx, |settings| {
 9719                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9720                })
 9721            });
 9722            item.is_dirty = true;
 9723        });
 9724        // Blurring the item saves the file.
 9725        item.update_in(cx, |_, window, _| window.blur());
 9726        cx.executor().run_until_parked();
 9727        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9728
 9729        // Deactivating the window still saves the file.
 9730        item.update_in(cx, |item, window, cx| {
 9731            cx.focus_self(window);
 9732            item.is_dirty = true;
 9733        });
 9734        cx.deactivate_window();
 9735        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9736
 9737        // Autosave after delay.
 9738        item.update(cx, |item, cx| {
 9739            SettingsStore::update_global(cx, |settings, cx| {
 9740                settings.update_user_settings(cx, |settings| {
 9741                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9742                        milliseconds: 500.into(),
 9743                    });
 9744                })
 9745            });
 9746            item.is_dirty = true;
 9747            cx.emit(ItemEvent::Edit);
 9748        });
 9749
 9750        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9751        cx.executor().advance_clock(Duration::from_millis(250));
 9752        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9753
 9754        // After delay expires, the file is saved.
 9755        cx.executor().advance_clock(Duration::from_millis(250));
 9756        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9757
 9758        // Autosave after delay, should save earlier than delay if tab is closed
 9759        item.update(cx, |item, cx| {
 9760            item.is_dirty = true;
 9761            cx.emit(ItemEvent::Edit);
 9762        });
 9763        cx.executor().advance_clock(Duration::from_millis(250));
 9764        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9765
 9766        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9767        pane.update_in(cx, |pane, window, cx| {
 9768            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9769        })
 9770        .await
 9771        .unwrap();
 9772        assert!(!cx.has_pending_prompt());
 9773        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9774
 9775        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9776        workspace.update_in(cx, |workspace, window, cx| {
 9777            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9778        });
 9779        item.update_in(cx, |item, _window, cx| {
 9780            item.is_dirty = true;
 9781            for project_item in &mut item.project_items {
 9782                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9783            }
 9784        });
 9785        cx.run_until_parked();
 9786        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9787
 9788        // Autosave on focus change, ensuring closing the tab counts as such.
 9789        item.update(cx, |item, cx| {
 9790            SettingsStore::update_global(cx, |settings, cx| {
 9791                settings.update_user_settings(cx, |settings| {
 9792                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9793                })
 9794            });
 9795            item.is_dirty = true;
 9796            for project_item in &mut item.project_items {
 9797                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9798            }
 9799        });
 9800
 9801        pane.update_in(cx, |pane, window, cx| {
 9802            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9803        })
 9804        .await
 9805        .unwrap();
 9806        assert!(!cx.has_pending_prompt());
 9807        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9808
 9809        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9810        workspace.update_in(cx, |workspace, window, cx| {
 9811            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9812        });
 9813        item.update_in(cx, |item, window, cx| {
 9814            item.project_items[0].update(cx, |item, _| {
 9815                item.entry_id = None;
 9816            });
 9817            item.is_dirty = true;
 9818            window.blur();
 9819        });
 9820        cx.run_until_parked();
 9821        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9822
 9823        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9824        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9825            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9826        });
 9827        cx.run_until_parked();
 9828        assert!(cx.has_pending_prompt());
 9829        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9830    }
 9831
 9832    #[gpui::test]
 9833    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9834        init_test(cx);
 9835
 9836        let fs = FakeFs::new(cx.executor());
 9837
 9838        let project = Project::test(fs, [], cx).await;
 9839        let (workspace, cx) =
 9840            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9841
 9842        let item = cx.new(|cx| {
 9843            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9844        });
 9845        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9846        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9847        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9848
 9849        workspace.update_in(cx, |workspace, window, cx| {
 9850            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9851            let toolbar_notification_count = toolbar_notify_count.clone();
 9852            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9853                *toolbar_notification_count.borrow_mut() += 1
 9854            })
 9855            .detach();
 9856        });
 9857
 9858        pane.read_with(cx, |pane, _| {
 9859            assert!(!pane.can_navigate_backward());
 9860            assert!(!pane.can_navigate_forward());
 9861        });
 9862
 9863        item.update_in(cx, |item, _, cx| {
 9864            item.set_state("one".to_string(), cx);
 9865        });
 9866
 9867        // Toolbar must be notified to re-render the navigation buttons
 9868        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9869
 9870        pane.read_with(cx, |pane, _| {
 9871            assert!(pane.can_navigate_backward());
 9872            assert!(!pane.can_navigate_forward());
 9873        });
 9874
 9875        workspace
 9876            .update_in(cx, |workspace, window, cx| {
 9877                workspace.go_back(pane.downgrade(), window, cx)
 9878            })
 9879            .await
 9880            .unwrap();
 9881
 9882        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9883        pane.read_with(cx, |pane, _| {
 9884            assert!(!pane.can_navigate_backward());
 9885            assert!(pane.can_navigate_forward());
 9886        });
 9887    }
 9888
 9889    #[gpui::test]
 9890    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9891        init_test(cx);
 9892        let fs = FakeFs::new(cx.executor());
 9893
 9894        let project = Project::test(fs, [], cx).await;
 9895        let (workspace, cx) =
 9896            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9897
 9898        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9899            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9900            workspace.add_panel(panel.clone(), window, cx);
 9901
 9902            workspace
 9903                .right_dock()
 9904                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9905
 9906            panel
 9907        });
 9908
 9909        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9910        pane.update_in(cx, |pane, window, cx| {
 9911            let item = cx.new(TestItem::new);
 9912            pane.add_item(Box::new(item), true, true, None, window, cx);
 9913        });
 9914
 9915        // Transfer focus from center to panel
 9916        workspace.update_in(cx, |workspace, window, cx| {
 9917            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9918        });
 9919
 9920        workspace.update_in(cx, |workspace, window, cx| {
 9921            assert!(workspace.right_dock().read(cx).is_open());
 9922            assert!(!panel.is_zoomed(window, cx));
 9923            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9924        });
 9925
 9926        // Transfer focus from panel to center
 9927        workspace.update_in(cx, |workspace, window, cx| {
 9928            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9929        });
 9930
 9931        workspace.update_in(cx, |workspace, window, cx| {
 9932            assert!(workspace.right_dock().read(cx).is_open());
 9933            assert!(!panel.is_zoomed(window, cx));
 9934            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9935        });
 9936
 9937        // Close the dock
 9938        workspace.update_in(cx, |workspace, window, cx| {
 9939            workspace.toggle_dock(DockPosition::Right, window, cx);
 9940        });
 9941
 9942        workspace.update_in(cx, |workspace, window, cx| {
 9943            assert!(!workspace.right_dock().read(cx).is_open());
 9944            assert!(!panel.is_zoomed(window, cx));
 9945            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9946        });
 9947
 9948        // Open the dock
 9949        workspace.update_in(cx, |workspace, window, cx| {
 9950            workspace.toggle_dock(DockPosition::Right, window, cx);
 9951        });
 9952
 9953        workspace.update_in(cx, |workspace, window, cx| {
 9954            assert!(workspace.right_dock().read(cx).is_open());
 9955            assert!(!panel.is_zoomed(window, cx));
 9956            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9957        });
 9958
 9959        // Focus and zoom panel
 9960        panel.update_in(cx, |panel, window, cx| {
 9961            cx.focus_self(window);
 9962            panel.set_zoomed(true, window, cx)
 9963        });
 9964
 9965        workspace.update_in(cx, |workspace, window, cx| {
 9966            assert!(workspace.right_dock().read(cx).is_open());
 9967            assert!(panel.is_zoomed(window, cx));
 9968            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9969        });
 9970
 9971        // Transfer focus to the center closes the dock
 9972        workspace.update_in(cx, |workspace, window, cx| {
 9973            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9974        });
 9975
 9976        workspace.update_in(cx, |workspace, window, cx| {
 9977            assert!(!workspace.right_dock().read(cx).is_open());
 9978            assert!(panel.is_zoomed(window, cx));
 9979            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9980        });
 9981
 9982        // Transferring focus back to the panel keeps it zoomed
 9983        workspace.update_in(cx, |workspace, window, cx| {
 9984            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9985        });
 9986
 9987        workspace.update_in(cx, |workspace, window, cx| {
 9988            assert!(workspace.right_dock().read(cx).is_open());
 9989            assert!(panel.is_zoomed(window, cx));
 9990            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9991        });
 9992
 9993        // Close the dock while it is zoomed
 9994        workspace.update_in(cx, |workspace, window, cx| {
 9995            workspace.toggle_dock(DockPosition::Right, window, cx)
 9996        });
 9997
 9998        workspace.update_in(cx, |workspace, window, cx| {
 9999            assert!(!workspace.right_dock().read(cx).is_open());
10000            assert!(panel.is_zoomed(window, cx));
10001            assert!(workspace.zoomed.is_none());
10002            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10003        });
10004
10005        // Opening the dock, when it's zoomed, retains focus
10006        workspace.update_in(cx, |workspace, window, cx| {
10007            workspace.toggle_dock(DockPosition::Right, window, cx)
10008        });
10009
10010        workspace.update_in(cx, |workspace, window, cx| {
10011            assert!(workspace.right_dock().read(cx).is_open());
10012            assert!(panel.is_zoomed(window, cx));
10013            assert!(workspace.zoomed.is_some());
10014            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10015        });
10016
10017        // Unzoom and close the panel, zoom the active pane.
10018        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
10019        workspace.update_in(cx, |workspace, window, cx| {
10020            workspace.toggle_dock(DockPosition::Right, window, cx)
10021        });
10022        pane.update_in(cx, |pane, window, cx| {
10023            pane.toggle_zoom(&Default::default(), window, cx)
10024        });
10025
10026        // Opening a dock unzooms the pane.
10027        workspace.update_in(cx, |workspace, window, cx| {
10028            workspace.toggle_dock(DockPosition::Right, window, cx)
10029        });
10030        workspace.update_in(cx, |workspace, window, cx| {
10031            let pane = pane.read(cx);
10032            assert!(!pane.is_zoomed());
10033            assert!(!pane.focus_handle(cx).is_focused(window));
10034            assert!(workspace.right_dock().read(cx).is_open());
10035            assert!(workspace.zoomed.is_none());
10036        });
10037    }
10038
10039    #[gpui::test]
10040    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
10041        init_test(cx);
10042        let fs = FakeFs::new(cx.executor());
10043
10044        let project = Project::test(fs, [], cx).await;
10045        let (workspace, cx) =
10046            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10047
10048        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
10049            workspace.active_pane().clone()
10050        });
10051
10052        // Add an item to the pane so it can be zoomed
10053        workspace.update_in(cx, |workspace, window, cx| {
10054            let item = cx.new(TestItem::new);
10055            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
10056        });
10057
10058        // Initially not zoomed
10059        workspace.update_in(cx, |workspace, _window, cx| {
10060            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
10061            assert!(
10062                workspace.zoomed.is_none(),
10063                "Workspace should track no zoomed pane"
10064            );
10065            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
10066        });
10067
10068        // Zoom In
10069        pane.update_in(cx, |pane, window, cx| {
10070            pane.zoom_in(&crate::ZoomIn, window, cx);
10071        });
10072
10073        workspace.update_in(cx, |workspace, window, cx| {
10074            assert!(
10075                pane.read(cx).is_zoomed(),
10076                "Pane should be zoomed after ZoomIn"
10077            );
10078            assert!(
10079                workspace.zoomed.is_some(),
10080                "Workspace should track the zoomed pane"
10081            );
10082            assert!(
10083                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10084                "ZoomIn should focus the pane"
10085            );
10086        });
10087
10088        // Zoom In again is a no-op
10089        pane.update_in(cx, |pane, window, cx| {
10090            pane.zoom_in(&crate::ZoomIn, window, cx);
10091        });
10092
10093        workspace.update_in(cx, |workspace, window, cx| {
10094            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
10095            assert!(
10096                workspace.zoomed.is_some(),
10097                "Workspace still tracks zoomed pane"
10098            );
10099            assert!(
10100                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10101                "Pane remains focused after repeated ZoomIn"
10102            );
10103        });
10104
10105        // Zoom Out
10106        pane.update_in(cx, |pane, window, cx| {
10107            pane.zoom_out(&crate::ZoomOut, window, cx);
10108        });
10109
10110        workspace.update_in(cx, |workspace, _window, cx| {
10111            assert!(
10112                !pane.read(cx).is_zoomed(),
10113                "Pane should unzoom after ZoomOut"
10114            );
10115            assert!(
10116                workspace.zoomed.is_none(),
10117                "Workspace clears zoom tracking after ZoomOut"
10118            );
10119        });
10120
10121        // Zoom Out again is a no-op
10122        pane.update_in(cx, |pane, window, cx| {
10123            pane.zoom_out(&crate::ZoomOut, window, cx);
10124        });
10125
10126        workspace.update_in(cx, |workspace, _window, cx| {
10127            assert!(
10128                !pane.read(cx).is_zoomed(),
10129                "Second ZoomOut keeps pane unzoomed"
10130            );
10131            assert!(
10132                workspace.zoomed.is_none(),
10133                "Workspace remains without zoomed pane"
10134            );
10135        });
10136    }
10137
10138    #[gpui::test]
10139    async fn test_zoomed_dock_persists_across_window_activation(cx: &mut gpui::TestAppContext) {
10140        init_test(cx);
10141        let fs = FakeFs::new(cx.executor());
10142
10143        let project = Project::test(fs, [], cx).await;
10144        let (workspace, cx) =
10145            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10146
10147        let panel = workspace.update_in(cx, |workspace, window, cx| {
10148            let panel = cx.new(|cx| TestPanel::new(DockPosition::Bottom, 100, cx));
10149            workspace.add_panel(panel.clone(), window, cx);
10150            workspace.toggle_dock(DockPosition::Bottom, window, cx);
10151            panel
10152        });
10153
10154        // Activate and zoom the panel
10155        panel.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10156        panel.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10157
10158        // Verify the dock is open and zoomed with focus in the panel
10159        workspace.update_in(cx, |workspace, window, cx| {
10160            assert!(
10161                workspace.bottom_dock().read(cx).is_open(),
10162                "Bottom dock should be open"
10163            );
10164            assert!(panel.is_zoomed(window, cx), "Panel should be zoomed");
10165            assert!(
10166                workspace.zoomed.is_some(),
10167                "Workspace should track the zoomed panel"
10168            );
10169            assert!(
10170                workspace.zoomed_position.is_some(),
10171                "Workspace should track the zoomed dock position"
10172            );
10173            assert!(
10174                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
10175                "Panel should be focused"
10176            );
10177        });
10178
10179        // Deactivate the window (simulates cmd-tab away from Zed)
10180        cx.deactivate_window();
10181
10182        // Verify the dock is still open while window is deactivated
10183        // (the bug manifests on REactivation, not deactivation)
10184        workspace.update_in(cx, |workspace, window, cx| {
10185            assert!(
10186                workspace.bottom_dock().read(cx).is_open(),
10187                "Bottom dock should still be open while window is deactivated"
10188            );
10189            assert!(
10190                panel.is_zoomed(window, cx),
10191                "Panel should still be zoomed while window is deactivated"
10192            );
10193            assert!(
10194                workspace.zoomed_position.is_some(),
10195                "zoomed_position should still be set while window is deactivated"
10196            );
10197        });
10198
10199        // Reactivate the window (simulates cmd-tab back to Zed)
10200        // During reactivation, focus is restored to the dock panel
10201        cx.update(|window, _cx| {
10202            window.activate_window();
10203        });
10204        cx.run_until_parked();
10205
10206        // Verify zoomed dock remains open after reactivation
10207        workspace.update_in(cx, |workspace, window, cx| {
10208            assert!(
10209                workspace.bottom_dock().read(cx).is_open(),
10210                "Bottom dock should remain open after window reactivation"
10211            );
10212            assert!(
10213                panel.is_zoomed(window, cx),
10214                "Panel should remain zoomed after window reactivation"
10215            );
10216            assert!(
10217                workspace.zoomed.is_some(),
10218                "Workspace should still track the zoomed panel after window reactivation"
10219            );
10220        });
10221    }
10222
10223    #[gpui::test]
10224    async fn test_zoomed_dock_dismissed_when_focus_moves_to_center_pane(
10225        cx: &mut gpui::TestAppContext,
10226    ) {
10227        init_test(cx);
10228        let fs = FakeFs::new(cx.executor());
10229
10230        let project = Project::test(fs, [], cx).await;
10231        let (workspace, cx) =
10232            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10233
10234        let panel = workspace.update_in(cx, |workspace, window, cx| {
10235            let panel = cx.new(|cx| TestPanel::new(DockPosition::Bottom, 100, cx));
10236            workspace.add_panel(panel.clone(), window, cx);
10237            workspace.toggle_dock(DockPosition::Bottom, window, cx);
10238            panel
10239        });
10240
10241        // Activate and zoom the panel
10242        panel.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10243        panel.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10244
10245        // Verify setup
10246        workspace.update_in(cx, |workspace, window, cx| {
10247            assert!(workspace.bottom_dock().read(cx).is_open());
10248            assert!(panel.is_zoomed(window, cx));
10249            assert!(workspace.zoomed_position.is_some());
10250        });
10251
10252        // Explicitly focus the center pane (simulates user clicking in the editor)
10253        workspace.update_in(cx, |workspace, window, cx| {
10254            window.focus(&workspace.active_pane().focus_handle(cx), cx);
10255        });
10256        cx.run_until_parked();
10257
10258        // When user explicitly focuses the center pane, the zoomed dock SHOULD be dismissed
10259        workspace.update_in(cx, |workspace, _window, cx| {
10260            assert!(
10261                !workspace.bottom_dock().read(cx).is_open(),
10262                "Bottom dock should be closed when focus explicitly moves to center pane"
10263            );
10264            assert!(
10265                workspace.zoomed.is_none(),
10266                "Workspace should not track zoomed panel when focus explicitly moves to center pane"
10267            );
10268            assert!(
10269                workspace.zoomed_position.is_none(),
10270                "Workspace zoomed_position should be None when focus explicitly moves to center pane"
10271            );
10272        });
10273    }
10274
10275    #[gpui::test]
10276    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
10277        init_test(cx);
10278        let fs = FakeFs::new(cx.executor());
10279
10280        let project = Project::test(fs, [], cx).await;
10281        let (workspace, cx) =
10282            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10283        workspace.update_in(cx, |workspace, window, cx| {
10284            // Open two docks
10285            let left_dock = workspace.dock_at_position(DockPosition::Left);
10286            let right_dock = workspace.dock_at_position(DockPosition::Right);
10287
10288            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10289            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10290
10291            assert!(left_dock.read(cx).is_open());
10292            assert!(right_dock.read(cx).is_open());
10293        });
10294
10295        workspace.update_in(cx, |workspace, window, cx| {
10296            // Toggle all docks - should close both
10297            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10298
10299            let left_dock = workspace.dock_at_position(DockPosition::Left);
10300            let right_dock = workspace.dock_at_position(DockPosition::Right);
10301            assert!(!left_dock.read(cx).is_open());
10302            assert!(!right_dock.read(cx).is_open());
10303        });
10304
10305        workspace.update_in(cx, |workspace, window, cx| {
10306            // Toggle again - should reopen both
10307            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10308
10309            let left_dock = workspace.dock_at_position(DockPosition::Left);
10310            let right_dock = workspace.dock_at_position(DockPosition::Right);
10311            assert!(left_dock.read(cx).is_open());
10312            assert!(right_dock.read(cx).is_open());
10313        });
10314    }
10315
10316    #[gpui::test]
10317    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10318        init_test(cx);
10319        let fs = FakeFs::new(cx.executor());
10320
10321        let project = Project::test(fs, [], cx).await;
10322        let (workspace, cx) =
10323            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10324        workspace.update_in(cx, |workspace, window, cx| {
10325            // Open two docks
10326            let left_dock = workspace.dock_at_position(DockPosition::Left);
10327            let right_dock = workspace.dock_at_position(DockPosition::Right);
10328
10329            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10330            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10331
10332            assert!(left_dock.read(cx).is_open());
10333            assert!(right_dock.read(cx).is_open());
10334        });
10335
10336        workspace.update_in(cx, |workspace, window, cx| {
10337            // Close them manually
10338            workspace.toggle_dock(DockPosition::Left, window, cx);
10339            workspace.toggle_dock(DockPosition::Right, window, cx);
10340
10341            let left_dock = workspace.dock_at_position(DockPosition::Left);
10342            let right_dock = workspace.dock_at_position(DockPosition::Right);
10343            assert!(!left_dock.read(cx).is_open());
10344            assert!(!right_dock.read(cx).is_open());
10345        });
10346
10347        workspace.update_in(cx, |workspace, window, cx| {
10348            // Toggle all docks - only last closed (right dock) should reopen
10349            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10350
10351            let left_dock = workspace.dock_at_position(DockPosition::Left);
10352            let right_dock = workspace.dock_at_position(DockPosition::Right);
10353            assert!(!left_dock.read(cx).is_open());
10354            assert!(right_dock.read(cx).is_open());
10355        });
10356    }
10357
10358    #[gpui::test]
10359    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10360        init_test(cx);
10361        let fs = FakeFs::new(cx.executor());
10362        let project = Project::test(fs, [], cx).await;
10363        let (workspace, cx) =
10364            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10365
10366        // Open two docks (left and right) with one panel each
10367        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10368            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10369            workspace.add_panel(left_panel.clone(), window, cx);
10370
10371            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10372            workspace.add_panel(right_panel.clone(), window, cx);
10373
10374            workspace.toggle_dock(DockPosition::Left, window, cx);
10375            workspace.toggle_dock(DockPosition::Right, window, cx);
10376
10377            // Verify initial state
10378            assert!(
10379                workspace.left_dock().read(cx).is_open(),
10380                "Left dock should be open"
10381            );
10382            assert_eq!(
10383                workspace
10384                    .left_dock()
10385                    .read(cx)
10386                    .visible_panel()
10387                    .unwrap()
10388                    .panel_id(),
10389                left_panel.panel_id(),
10390                "Left panel should be visible in left dock"
10391            );
10392            assert!(
10393                workspace.right_dock().read(cx).is_open(),
10394                "Right dock should be open"
10395            );
10396            assert_eq!(
10397                workspace
10398                    .right_dock()
10399                    .read(cx)
10400                    .visible_panel()
10401                    .unwrap()
10402                    .panel_id(),
10403                right_panel.panel_id(),
10404                "Right panel should be visible in right dock"
10405            );
10406            assert!(
10407                !workspace.bottom_dock().read(cx).is_open(),
10408                "Bottom dock should be closed"
10409            );
10410
10411            (left_panel, right_panel)
10412        });
10413
10414        // Focus the left panel and move it to the next position (bottom dock)
10415        workspace.update_in(cx, |workspace, window, cx| {
10416            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10417            assert!(
10418                left_panel.read(cx).focus_handle(cx).is_focused(window),
10419                "Left panel should be focused"
10420            );
10421        });
10422
10423        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10424
10425        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10426        workspace.update(cx, |workspace, cx| {
10427            assert!(
10428                !workspace.left_dock().read(cx).is_open(),
10429                "Left dock should be closed"
10430            );
10431            assert!(
10432                workspace.bottom_dock().read(cx).is_open(),
10433                "Bottom dock should now be open"
10434            );
10435            assert_eq!(
10436                left_panel.read(cx).position,
10437                DockPosition::Bottom,
10438                "Left panel should now be in the bottom dock"
10439            );
10440            assert_eq!(
10441                workspace
10442                    .bottom_dock()
10443                    .read(cx)
10444                    .visible_panel()
10445                    .unwrap()
10446                    .panel_id(),
10447                left_panel.panel_id(),
10448                "Left panel should be the visible panel in the bottom dock"
10449            );
10450        });
10451
10452        // Toggle all docks off
10453        workspace.update_in(cx, |workspace, window, cx| {
10454            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10455            assert!(
10456                !workspace.left_dock().read(cx).is_open(),
10457                "Left dock should be closed"
10458            );
10459            assert!(
10460                !workspace.right_dock().read(cx).is_open(),
10461                "Right dock should be closed"
10462            );
10463            assert!(
10464                !workspace.bottom_dock().read(cx).is_open(),
10465                "Bottom dock should be closed"
10466            );
10467        });
10468
10469        // Toggle all docks back on and verify positions are restored
10470        workspace.update_in(cx, |workspace, window, cx| {
10471            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10472            assert!(
10473                !workspace.left_dock().read(cx).is_open(),
10474                "Left dock should remain closed"
10475            );
10476            assert!(
10477                workspace.right_dock().read(cx).is_open(),
10478                "Right dock should remain open"
10479            );
10480            assert!(
10481                workspace.bottom_dock().read(cx).is_open(),
10482                "Bottom dock should remain open"
10483            );
10484            assert_eq!(
10485                left_panel.read(cx).position,
10486                DockPosition::Bottom,
10487                "Left panel should remain in the bottom dock"
10488            );
10489            assert_eq!(
10490                right_panel.read(cx).position,
10491                DockPosition::Right,
10492                "Right panel should remain in the right dock"
10493            );
10494            assert_eq!(
10495                workspace
10496                    .bottom_dock()
10497                    .read(cx)
10498                    .visible_panel()
10499                    .unwrap()
10500                    .panel_id(),
10501                left_panel.panel_id(),
10502                "Left panel should be the visible panel in the right dock"
10503            );
10504        });
10505    }
10506
10507    #[gpui::test]
10508    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10509        init_test(cx);
10510
10511        let fs = FakeFs::new(cx.executor());
10512
10513        let project = Project::test(fs, None, cx).await;
10514        let (workspace, cx) =
10515            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10516
10517        // Let's arrange the panes like this:
10518        //
10519        // +-----------------------+
10520        // |         top           |
10521        // +------+--------+-------+
10522        // | left | center | right |
10523        // +------+--------+-------+
10524        // |        bottom         |
10525        // +-----------------------+
10526
10527        let top_item = cx.new(|cx| {
10528            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10529        });
10530        let bottom_item = cx.new(|cx| {
10531            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10532        });
10533        let left_item = cx.new(|cx| {
10534            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10535        });
10536        let right_item = cx.new(|cx| {
10537            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10538        });
10539        let center_item = cx.new(|cx| {
10540            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10541        });
10542
10543        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10544            let top_pane_id = workspace.active_pane().entity_id();
10545            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10546            workspace.split_pane(
10547                workspace.active_pane().clone(),
10548                SplitDirection::Down,
10549                window,
10550                cx,
10551            );
10552            top_pane_id
10553        });
10554        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10555            let bottom_pane_id = workspace.active_pane().entity_id();
10556            workspace.add_item_to_active_pane(
10557                Box::new(bottom_item.clone()),
10558                None,
10559                false,
10560                window,
10561                cx,
10562            );
10563            workspace.split_pane(
10564                workspace.active_pane().clone(),
10565                SplitDirection::Up,
10566                window,
10567                cx,
10568            );
10569            bottom_pane_id
10570        });
10571        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10572            let left_pane_id = workspace.active_pane().entity_id();
10573            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10574            workspace.split_pane(
10575                workspace.active_pane().clone(),
10576                SplitDirection::Right,
10577                window,
10578                cx,
10579            );
10580            left_pane_id
10581        });
10582        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10583            let right_pane_id = workspace.active_pane().entity_id();
10584            workspace.add_item_to_active_pane(
10585                Box::new(right_item.clone()),
10586                None,
10587                false,
10588                window,
10589                cx,
10590            );
10591            workspace.split_pane(
10592                workspace.active_pane().clone(),
10593                SplitDirection::Left,
10594                window,
10595                cx,
10596            );
10597            right_pane_id
10598        });
10599        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10600            let center_pane_id = workspace.active_pane().entity_id();
10601            workspace.add_item_to_active_pane(
10602                Box::new(center_item.clone()),
10603                None,
10604                false,
10605                window,
10606                cx,
10607            );
10608            center_pane_id
10609        });
10610        cx.executor().run_until_parked();
10611
10612        workspace.update_in(cx, |workspace, window, cx| {
10613            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10614
10615            // Join into next from center pane into right
10616            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10617        });
10618
10619        workspace.update_in(cx, |workspace, window, cx| {
10620            let active_pane = workspace.active_pane();
10621            assert_eq!(right_pane_id, active_pane.entity_id());
10622            assert_eq!(2, active_pane.read(cx).items_len());
10623            let item_ids_in_pane =
10624                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10625            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10626            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10627
10628            // Join into next from right pane into bottom
10629            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10630        });
10631
10632        workspace.update_in(cx, |workspace, window, cx| {
10633            let active_pane = workspace.active_pane();
10634            assert_eq!(bottom_pane_id, active_pane.entity_id());
10635            assert_eq!(3, active_pane.read(cx).items_len());
10636            let item_ids_in_pane =
10637                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10638            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10639            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10640            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10641
10642            // Join into next from bottom pane into left
10643            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10644        });
10645
10646        workspace.update_in(cx, |workspace, window, cx| {
10647            let active_pane = workspace.active_pane();
10648            assert_eq!(left_pane_id, active_pane.entity_id());
10649            assert_eq!(4, active_pane.read(cx).items_len());
10650            let item_ids_in_pane =
10651                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10652            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10653            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10654            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10655            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10656
10657            // Join into next from left pane into top
10658            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10659        });
10660
10661        workspace.update_in(cx, |workspace, window, cx| {
10662            let active_pane = workspace.active_pane();
10663            assert_eq!(top_pane_id, active_pane.entity_id());
10664            assert_eq!(5, active_pane.read(cx).items_len());
10665            let item_ids_in_pane =
10666                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10667            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10668            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10669            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10670            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10671            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10672
10673            // Single pane left: no-op
10674            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10675        });
10676
10677        workspace.update(cx, |workspace, _cx| {
10678            let active_pane = workspace.active_pane();
10679            assert_eq!(top_pane_id, active_pane.entity_id());
10680        });
10681    }
10682
10683    fn add_an_item_to_active_pane(
10684        cx: &mut VisualTestContext,
10685        workspace: &Entity<Workspace>,
10686        item_id: u64,
10687    ) -> Entity<TestItem> {
10688        let item = cx.new(|cx| {
10689            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10690                item_id,
10691                "item{item_id}.txt",
10692                cx,
10693            )])
10694        });
10695        workspace.update_in(cx, |workspace, window, cx| {
10696            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10697        });
10698        item
10699    }
10700
10701    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10702        workspace.update_in(cx, |workspace, window, cx| {
10703            workspace.split_pane(
10704                workspace.active_pane().clone(),
10705                SplitDirection::Right,
10706                window,
10707                cx,
10708            )
10709        })
10710    }
10711
10712    #[gpui::test]
10713    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10714        init_test(cx);
10715        let fs = FakeFs::new(cx.executor());
10716        let project = Project::test(fs, None, cx).await;
10717        let (workspace, cx) =
10718            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10719
10720        add_an_item_to_active_pane(cx, &workspace, 1);
10721        split_pane(cx, &workspace);
10722        add_an_item_to_active_pane(cx, &workspace, 2);
10723        split_pane(cx, &workspace); // empty pane
10724        split_pane(cx, &workspace);
10725        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10726
10727        cx.executor().run_until_parked();
10728
10729        workspace.update(cx, |workspace, cx| {
10730            let num_panes = workspace.panes().len();
10731            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10732            let active_item = workspace
10733                .active_pane()
10734                .read(cx)
10735                .active_item()
10736                .expect("item is in focus");
10737
10738            assert_eq!(num_panes, 4);
10739            assert_eq!(num_items_in_current_pane, 1);
10740            assert_eq!(active_item.item_id(), last_item.item_id());
10741        });
10742
10743        workspace.update_in(cx, |workspace, window, cx| {
10744            workspace.join_all_panes(window, cx);
10745        });
10746
10747        workspace.update(cx, |workspace, cx| {
10748            let num_panes = workspace.panes().len();
10749            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10750            let active_item = workspace
10751                .active_pane()
10752                .read(cx)
10753                .active_item()
10754                .expect("item is in focus");
10755
10756            assert_eq!(num_panes, 1);
10757            assert_eq!(num_items_in_current_pane, 3);
10758            assert_eq!(active_item.item_id(), last_item.item_id());
10759        });
10760    }
10761    struct TestModal(FocusHandle);
10762
10763    impl TestModal {
10764        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10765            Self(cx.focus_handle())
10766        }
10767    }
10768
10769    impl EventEmitter<DismissEvent> for TestModal {}
10770
10771    impl Focusable for TestModal {
10772        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10773            self.0.clone()
10774        }
10775    }
10776
10777    impl ModalView for TestModal {}
10778
10779    impl Render for TestModal {
10780        fn render(
10781            &mut self,
10782            _window: &mut Window,
10783            _cx: &mut Context<TestModal>,
10784        ) -> impl IntoElement {
10785            div().track_focus(&self.0)
10786        }
10787    }
10788
10789    #[gpui::test]
10790    async fn test_panels(cx: &mut gpui::TestAppContext) {
10791        init_test(cx);
10792        let fs = FakeFs::new(cx.executor());
10793
10794        let project = Project::test(fs, [], cx).await;
10795        let (workspace, cx) =
10796            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10797
10798        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10799            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10800            workspace.add_panel(panel_1.clone(), window, cx);
10801            workspace.toggle_dock(DockPosition::Left, window, cx);
10802            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10803            workspace.add_panel(panel_2.clone(), window, cx);
10804            workspace.toggle_dock(DockPosition::Right, window, cx);
10805
10806            let left_dock = workspace.left_dock();
10807            assert_eq!(
10808                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10809                panel_1.panel_id()
10810            );
10811            assert_eq!(
10812                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10813                panel_1.size(window, cx)
10814            );
10815
10816            left_dock.update(cx, |left_dock, cx| {
10817                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10818            });
10819            assert_eq!(
10820                workspace
10821                    .right_dock()
10822                    .read(cx)
10823                    .visible_panel()
10824                    .unwrap()
10825                    .panel_id(),
10826                panel_2.panel_id(),
10827            );
10828
10829            (panel_1, panel_2)
10830        });
10831
10832        // Move panel_1 to the right
10833        panel_1.update_in(cx, |panel_1, window, cx| {
10834            panel_1.set_position(DockPosition::Right, window, cx)
10835        });
10836
10837        workspace.update_in(cx, |workspace, window, cx| {
10838            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10839            // Since it was the only panel on the left, the left dock should now be closed.
10840            assert!(!workspace.left_dock().read(cx).is_open());
10841            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10842            let right_dock = workspace.right_dock();
10843            assert_eq!(
10844                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10845                panel_1.panel_id()
10846            );
10847            assert_eq!(
10848                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10849                px(1337.)
10850            );
10851
10852            // Now we move panel_2 to the left
10853            panel_2.set_position(DockPosition::Left, window, cx);
10854        });
10855
10856        workspace.update(cx, |workspace, cx| {
10857            // Since panel_2 was not visible on the right, we don't open the left dock.
10858            assert!(!workspace.left_dock().read(cx).is_open());
10859            // And the right dock is unaffected in its displaying of panel_1
10860            assert!(workspace.right_dock().read(cx).is_open());
10861            assert_eq!(
10862                workspace
10863                    .right_dock()
10864                    .read(cx)
10865                    .visible_panel()
10866                    .unwrap()
10867                    .panel_id(),
10868                panel_1.panel_id(),
10869            );
10870        });
10871
10872        // Move panel_1 back to the left
10873        panel_1.update_in(cx, |panel_1, window, cx| {
10874            panel_1.set_position(DockPosition::Left, window, cx)
10875        });
10876
10877        workspace.update_in(cx, |workspace, window, cx| {
10878            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10879            let left_dock = workspace.left_dock();
10880            assert!(left_dock.read(cx).is_open());
10881            assert_eq!(
10882                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10883                panel_1.panel_id()
10884            );
10885            assert_eq!(
10886                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10887                px(1337.)
10888            );
10889            // And the right dock should be closed as it no longer has any panels.
10890            assert!(!workspace.right_dock().read(cx).is_open());
10891
10892            // Now we move panel_1 to the bottom
10893            panel_1.set_position(DockPosition::Bottom, window, cx);
10894        });
10895
10896        workspace.update_in(cx, |workspace, window, cx| {
10897            // Since panel_1 was visible on the left, we close the left dock.
10898            assert!(!workspace.left_dock().read(cx).is_open());
10899            // The bottom dock is sized based on the panel's default size,
10900            // since the panel orientation changed from vertical to horizontal.
10901            let bottom_dock = workspace.bottom_dock();
10902            assert_eq!(
10903                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10904                panel_1.size(window, cx),
10905            );
10906            // Close bottom dock and move panel_1 back to the left.
10907            bottom_dock.update(cx, |bottom_dock, cx| {
10908                bottom_dock.set_open(false, window, cx)
10909            });
10910            panel_1.set_position(DockPosition::Left, window, cx);
10911        });
10912
10913        // Emit activated event on panel 1
10914        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10915
10916        // Now the left dock is open and panel_1 is active and focused.
10917        workspace.update_in(cx, |workspace, window, cx| {
10918            let left_dock = workspace.left_dock();
10919            assert!(left_dock.read(cx).is_open());
10920            assert_eq!(
10921                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10922                panel_1.panel_id(),
10923            );
10924            assert!(panel_1.focus_handle(cx).is_focused(window));
10925        });
10926
10927        // Emit closed event on panel 2, which is not active
10928        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10929
10930        // Wo don't close the left dock, because panel_2 wasn't the active panel
10931        workspace.update(cx, |workspace, cx| {
10932            let left_dock = workspace.left_dock();
10933            assert!(left_dock.read(cx).is_open());
10934            assert_eq!(
10935                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10936                panel_1.panel_id(),
10937            );
10938        });
10939
10940        // Emitting a ZoomIn event shows the panel as zoomed.
10941        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10942        workspace.read_with(cx, |workspace, _| {
10943            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10944            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10945        });
10946
10947        // Move panel to another dock while it is zoomed
10948        panel_1.update_in(cx, |panel, window, cx| {
10949            panel.set_position(DockPosition::Right, window, cx)
10950        });
10951        workspace.read_with(cx, |workspace, _| {
10952            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10953
10954            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10955        });
10956
10957        // This is a helper for getting a:
10958        // - valid focus on an element,
10959        // - that isn't a part of the panes and panels system of the Workspace,
10960        // - and doesn't trigger the 'on_focus_lost' API.
10961        let focus_other_view = {
10962            let workspace = workspace.clone();
10963            move |cx: &mut VisualTestContext| {
10964                workspace.update_in(cx, |workspace, window, cx| {
10965                    if workspace.active_modal::<TestModal>(cx).is_some() {
10966                        workspace.toggle_modal(window, cx, TestModal::new);
10967                        workspace.toggle_modal(window, cx, TestModal::new);
10968                    } else {
10969                        workspace.toggle_modal(window, cx, TestModal::new);
10970                    }
10971                })
10972            }
10973        };
10974
10975        // If focus is transferred to another view that's not a panel or another pane, we still show
10976        // the panel as zoomed.
10977        focus_other_view(cx);
10978        workspace.read_with(cx, |workspace, _| {
10979            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10980            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10981        });
10982
10983        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10984        workspace.update_in(cx, |_workspace, window, cx| {
10985            cx.focus_self(window);
10986        });
10987        workspace.read_with(cx, |workspace, _| {
10988            assert_eq!(workspace.zoomed, None);
10989            assert_eq!(workspace.zoomed_position, None);
10990        });
10991
10992        // If focus is transferred again to another view that's not a panel or a pane, we won't
10993        // show the panel as zoomed because it wasn't zoomed before.
10994        focus_other_view(cx);
10995        workspace.read_with(cx, |workspace, _| {
10996            assert_eq!(workspace.zoomed, None);
10997            assert_eq!(workspace.zoomed_position, None);
10998        });
10999
11000        // When the panel is activated, it is zoomed again.
11001        cx.dispatch_action(ToggleRightDock);
11002        workspace.read_with(cx, |workspace, _| {
11003            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11004            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11005        });
11006
11007        // Emitting a ZoomOut event unzooms the panel.
11008        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
11009        workspace.read_with(cx, |workspace, _| {
11010            assert_eq!(workspace.zoomed, None);
11011            assert_eq!(workspace.zoomed_position, None);
11012        });
11013
11014        // Emit closed event on panel 1, which is active
11015        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11016
11017        // Now the left dock is closed, because panel_1 was the active panel
11018        workspace.update(cx, |workspace, cx| {
11019            let right_dock = workspace.right_dock();
11020            assert!(!right_dock.read(cx).is_open());
11021        });
11022    }
11023
11024    #[gpui::test]
11025    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
11026        init_test(cx);
11027
11028        let fs = FakeFs::new(cx.background_executor.clone());
11029        let project = Project::test(fs, [], cx).await;
11030        let (workspace, cx) =
11031            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11032        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11033
11034        let dirty_regular_buffer = cx.new(|cx| {
11035            TestItem::new(cx)
11036                .with_dirty(true)
11037                .with_label("1.txt")
11038                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11039        });
11040        let dirty_regular_buffer_2 = cx.new(|cx| {
11041            TestItem::new(cx)
11042                .with_dirty(true)
11043                .with_label("2.txt")
11044                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11045        });
11046        let dirty_multi_buffer_with_both = cx.new(|cx| {
11047            TestItem::new(cx)
11048                .with_dirty(true)
11049                .with_buffer_kind(ItemBufferKind::Multibuffer)
11050                .with_label("Fake Project Search")
11051                .with_project_items(&[
11052                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11053                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11054                ])
11055        });
11056        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11057        workspace.update_in(cx, |workspace, window, cx| {
11058            workspace.add_item(
11059                pane.clone(),
11060                Box::new(dirty_regular_buffer.clone()),
11061                None,
11062                false,
11063                false,
11064                window,
11065                cx,
11066            );
11067            workspace.add_item(
11068                pane.clone(),
11069                Box::new(dirty_regular_buffer_2.clone()),
11070                None,
11071                false,
11072                false,
11073                window,
11074                cx,
11075            );
11076            workspace.add_item(
11077                pane.clone(),
11078                Box::new(dirty_multi_buffer_with_both.clone()),
11079                None,
11080                false,
11081                false,
11082                window,
11083                cx,
11084            );
11085        });
11086
11087        pane.update_in(cx, |pane, window, cx| {
11088            pane.activate_item(2, true, true, window, cx);
11089            assert_eq!(
11090                pane.active_item().unwrap().item_id(),
11091                multi_buffer_with_both_files_id,
11092                "Should select the multi buffer in the pane"
11093            );
11094        });
11095        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11096            pane.close_other_items(
11097                &CloseOtherItems {
11098                    save_intent: Some(SaveIntent::Save),
11099                    close_pinned: true,
11100                },
11101                None,
11102                window,
11103                cx,
11104            )
11105        });
11106        cx.background_executor.run_until_parked();
11107        assert!(!cx.has_pending_prompt());
11108        close_all_but_multi_buffer_task
11109            .await
11110            .expect("Closing all buffers but the multi buffer failed");
11111        pane.update(cx, |pane, cx| {
11112            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
11113            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
11114            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
11115            assert_eq!(pane.items_len(), 1);
11116            assert_eq!(
11117                pane.active_item().unwrap().item_id(),
11118                multi_buffer_with_both_files_id,
11119                "Should have only the multi buffer left in the pane"
11120            );
11121            assert!(
11122                dirty_multi_buffer_with_both.read(cx).is_dirty,
11123                "The multi buffer containing the unsaved buffer should still be dirty"
11124            );
11125        });
11126
11127        dirty_regular_buffer.update(cx, |buffer, cx| {
11128            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
11129        });
11130
11131        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11132            pane.close_active_item(
11133                &CloseActiveItem {
11134                    save_intent: Some(SaveIntent::Close),
11135                    close_pinned: false,
11136                },
11137                window,
11138                cx,
11139            )
11140        });
11141        cx.background_executor.run_until_parked();
11142        assert!(
11143            cx.has_pending_prompt(),
11144            "Dirty multi buffer should prompt a save dialog"
11145        );
11146        cx.simulate_prompt_answer("Save");
11147        cx.background_executor.run_until_parked();
11148        close_multi_buffer_task
11149            .await
11150            .expect("Closing the multi buffer failed");
11151        pane.update(cx, |pane, cx| {
11152            assert_eq!(
11153                dirty_multi_buffer_with_both.read(cx).save_count,
11154                1,
11155                "Multi buffer item should get be saved"
11156            );
11157            // Test impl does not save inner items, so we do not assert them
11158            assert_eq!(
11159                pane.items_len(),
11160                0,
11161                "No more items should be left in the pane"
11162            );
11163            assert!(pane.active_item().is_none());
11164        });
11165    }
11166
11167    #[gpui::test]
11168    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
11169        cx: &mut TestAppContext,
11170    ) {
11171        init_test(cx);
11172
11173        let fs = FakeFs::new(cx.background_executor.clone());
11174        let project = Project::test(fs, [], cx).await;
11175        let (workspace, cx) =
11176            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11177        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11178
11179        let dirty_regular_buffer = cx.new(|cx| {
11180            TestItem::new(cx)
11181                .with_dirty(true)
11182                .with_label("1.txt")
11183                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11184        });
11185        let dirty_regular_buffer_2 = cx.new(|cx| {
11186            TestItem::new(cx)
11187                .with_dirty(true)
11188                .with_label("2.txt")
11189                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11190        });
11191        let clear_regular_buffer = cx.new(|cx| {
11192            TestItem::new(cx)
11193                .with_label("3.txt")
11194                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11195        });
11196
11197        let dirty_multi_buffer_with_both = cx.new(|cx| {
11198            TestItem::new(cx)
11199                .with_dirty(true)
11200                .with_buffer_kind(ItemBufferKind::Multibuffer)
11201                .with_label("Fake Project Search")
11202                .with_project_items(&[
11203                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11204                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11205                    clear_regular_buffer.read(cx).project_items[0].clone(),
11206                ])
11207        });
11208        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11209        workspace.update_in(cx, |workspace, window, cx| {
11210            workspace.add_item(
11211                pane.clone(),
11212                Box::new(dirty_regular_buffer.clone()),
11213                None,
11214                false,
11215                false,
11216                window,
11217                cx,
11218            );
11219            workspace.add_item(
11220                pane.clone(),
11221                Box::new(dirty_multi_buffer_with_both.clone()),
11222                None,
11223                false,
11224                false,
11225                window,
11226                cx,
11227            );
11228        });
11229
11230        pane.update_in(cx, |pane, window, cx| {
11231            pane.activate_item(1, true, true, window, cx);
11232            assert_eq!(
11233                pane.active_item().unwrap().item_id(),
11234                multi_buffer_with_both_files_id,
11235                "Should select the multi buffer in the pane"
11236            );
11237        });
11238        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11239            pane.close_active_item(
11240                &CloseActiveItem {
11241                    save_intent: None,
11242                    close_pinned: false,
11243                },
11244                window,
11245                cx,
11246            )
11247        });
11248        cx.background_executor.run_until_parked();
11249        assert!(
11250            cx.has_pending_prompt(),
11251            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
11252        );
11253    }
11254
11255    /// Tests that when `close_on_file_delete` is enabled, files are automatically
11256    /// closed when they are deleted from disk.
11257    #[gpui::test]
11258    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
11259        init_test(cx);
11260
11261        // Enable the close_on_disk_deletion setting
11262        cx.update_global(|store: &mut SettingsStore, cx| {
11263            store.update_user_settings(cx, |settings| {
11264                settings.workspace.close_on_file_delete = Some(true);
11265            });
11266        });
11267
11268        let fs = FakeFs::new(cx.background_executor.clone());
11269        let project = Project::test(fs, [], cx).await;
11270        let (workspace, cx) =
11271            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11272        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11273
11274        // Create a test item that simulates a file
11275        let item = cx.new(|cx| {
11276            TestItem::new(cx)
11277                .with_label("test.txt")
11278                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11279        });
11280
11281        // Add item to workspace
11282        workspace.update_in(cx, |workspace, window, cx| {
11283            workspace.add_item(
11284                pane.clone(),
11285                Box::new(item.clone()),
11286                None,
11287                false,
11288                false,
11289                window,
11290                cx,
11291            );
11292        });
11293
11294        // Verify the item is in the pane
11295        pane.read_with(cx, |pane, _| {
11296            assert_eq!(pane.items().count(), 1);
11297        });
11298
11299        // Simulate file deletion by setting the item's deleted state
11300        item.update(cx, |item, _| {
11301            item.set_has_deleted_file(true);
11302        });
11303
11304        // Emit UpdateTab event to trigger the close behavior
11305        cx.run_until_parked();
11306        item.update(cx, |_, cx| {
11307            cx.emit(ItemEvent::UpdateTab);
11308        });
11309
11310        // Allow the close operation to complete
11311        cx.run_until_parked();
11312
11313        // Verify the item was automatically closed
11314        pane.read_with(cx, |pane, _| {
11315            assert_eq!(
11316                pane.items().count(),
11317                0,
11318                "Item should be automatically closed when file is deleted"
11319            );
11320        });
11321    }
11322
11323    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11324    /// open with a strikethrough when they are deleted from disk.
11325    #[gpui::test]
11326    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11327        init_test(cx);
11328
11329        // Ensure close_on_disk_deletion is disabled (default)
11330        cx.update_global(|store: &mut SettingsStore, cx| {
11331            store.update_user_settings(cx, |settings| {
11332                settings.workspace.close_on_file_delete = Some(false);
11333            });
11334        });
11335
11336        let fs = FakeFs::new(cx.background_executor.clone());
11337        let project = Project::test(fs, [], cx).await;
11338        let (workspace, cx) =
11339            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11340        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11341
11342        // Create a test item that simulates a file
11343        let item = cx.new(|cx| {
11344            TestItem::new(cx)
11345                .with_label("test.txt")
11346                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11347        });
11348
11349        // Add item to workspace
11350        workspace.update_in(cx, |workspace, window, cx| {
11351            workspace.add_item(
11352                pane.clone(),
11353                Box::new(item.clone()),
11354                None,
11355                false,
11356                false,
11357                window,
11358                cx,
11359            );
11360        });
11361
11362        // Verify the item is in the pane
11363        pane.read_with(cx, |pane, _| {
11364            assert_eq!(pane.items().count(), 1);
11365        });
11366
11367        // Simulate file deletion
11368        item.update(cx, |item, _| {
11369            item.set_has_deleted_file(true);
11370        });
11371
11372        // Emit UpdateTab event
11373        cx.run_until_parked();
11374        item.update(cx, |_, cx| {
11375            cx.emit(ItemEvent::UpdateTab);
11376        });
11377
11378        // Allow any potential close operation to complete
11379        cx.run_until_parked();
11380
11381        // Verify the item remains open (with strikethrough)
11382        pane.read_with(cx, |pane, _| {
11383            assert_eq!(
11384                pane.items().count(),
11385                1,
11386                "Item should remain open when close_on_disk_deletion is disabled"
11387            );
11388        });
11389
11390        // Verify the item shows as deleted
11391        item.read_with(cx, |item, _| {
11392            assert!(
11393                item.has_deleted_file,
11394                "Item should be marked as having deleted file"
11395            );
11396        });
11397    }
11398
11399    /// Tests that dirty files are not automatically closed when deleted from disk,
11400    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11401    /// unsaved changes without being prompted.
11402    #[gpui::test]
11403    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11404        init_test(cx);
11405
11406        // Enable the close_on_file_delete setting
11407        cx.update_global(|store: &mut SettingsStore, cx| {
11408            store.update_user_settings(cx, |settings| {
11409                settings.workspace.close_on_file_delete = Some(true);
11410            });
11411        });
11412
11413        let fs = FakeFs::new(cx.background_executor.clone());
11414        let project = Project::test(fs, [], cx).await;
11415        let (workspace, cx) =
11416            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11417        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11418
11419        // Create a dirty test item
11420        let item = cx.new(|cx| {
11421            TestItem::new(cx)
11422                .with_dirty(true)
11423                .with_label("test.txt")
11424                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11425        });
11426
11427        // Add item to workspace
11428        workspace.update_in(cx, |workspace, window, cx| {
11429            workspace.add_item(
11430                pane.clone(),
11431                Box::new(item.clone()),
11432                None,
11433                false,
11434                false,
11435                window,
11436                cx,
11437            );
11438        });
11439
11440        // Simulate file deletion
11441        item.update(cx, |item, _| {
11442            item.set_has_deleted_file(true);
11443        });
11444
11445        // Emit UpdateTab event to trigger the close behavior
11446        cx.run_until_parked();
11447        item.update(cx, |_, cx| {
11448            cx.emit(ItemEvent::UpdateTab);
11449        });
11450
11451        // Allow any potential close operation to complete
11452        cx.run_until_parked();
11453
11454        // Verify the item remains open (dirty files are not auto-closed)
11455        pane.read_with(cx, |pane, _| {
11456            assert_eq!(
11457                pane.items().count(),
11458                1,
11459                "Dirty items should not be automatically closed even when file is deleted"
11460            );
11461        });
11462
11463        // Verify the item is marked as deleted and still dirty
11464        item.read_with(cx, |item, _| {
11465            assert!(
11466                item.has_deleted_file,
11467                "Item should be marked as having deleted file"
11468            );
11469            assert!(item.is_dirty, "Item should still be dirty");
11470        });
11471    }
11472
11473    /// Tests that navigation history is cleaned up when files are auto-closed
11474    /// due to deletion from disk.
11475    #[gpui::test]
11476    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11477        init_test(cx);
11478
11479        // Enable the close_on_file_delete setting
11480        cx.update_global(|store: &mut SettingsStore, cx| {
11481            store.update_user_settings(cx, |settings| {
11482                settings.workspace.close_on_file_delete = Some(true);
11483            });
11484        });
11485
11486        let fs = FakeFs::new(cx.background_executor.clone());
11487        let project = Project::test(fs, [], cx).await;
11488        let (workspace, cx) =
11489            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11490        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11491
11492        // Create test items
11493        let item1 = cx.new(|cx| {
11494            TestItem::new(cx)
11495                .with_label("test1.txt")
11496                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11497        });
11498        let item1_id = item1.item_id();
11499
11500        let item2 = cx.new(|cx| {
11501            TestItem::new(cx)
11502                .with_label("test2.txt")
11503                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11504        });
11505
11506        // Add items to workspace
11507        workspace.update_in(cx, |workspace, window, cx| {
11508            workspace.add_item(
11509                pane.clone(),
11510                Box::new(item1.clone()),
11511                None,
11512                false,
11513                false,
11514                window,
11515                cx,
11516            );
11517            workspace.add_item(
11518                pane.clone(),
11519                Box::new(item2.clone()),
11520                None,
11521                false,
11522                false,
11523                window,
11524                cx,
11525            );
11526        });
11527
11528        // Activate item1 to ensure it gets navigation entries
11529        pane.update_in(cx, |pane, window, cx| {
11530            pane.activate_item(0, true, true, window, cx);
11531        });
11532
11533        // Switch to item2 and back to create navigation history
11534        pane.update_in(cx, |pane, window, cx| {
11535            pane.activate_item(1, true, true, window, cx);
11536        });
11537        cx.run_until_parked();
11538
11539        pane.update_in(cx, |pane, window, cx| {
11540            pane.activate_item(0, true, true, window, cx);
11541        });
11542        cx.run_until_parked();
11543
11544        // Simulate file deletion for item1
11545        item1.update(cx, |item, _| {
11546            item.set_has_deleted_file(true);
11547        });
11548
11549        // Emit UpdateTab event to trigger the close behavior
11550        item1.update(cx, |_, cx| {
11551            cx.emit(ItemEvent::UpdateTab);
11552        });
11553        cx.run_until_parked();
11554
11555        // Verify item1 was closed
11556        pane.read_with(cx, |pane, _| {
11557            assert_eq!(
11558                pane.items().count(),
11559                1,
11560                "Should have 1 item remaining after auto-close"
11561            );
11562        });
11563
11564        // Check navigation history after close
11565        let has_item = pane.read_with(cx, |pane, cx| {
11566            let mut has_item = false;
11567            pane.nav_history().for_each_entry(cx, |entry, _| {
11568                if entry.item.id() == item1_id {
11569                    has_item = true;
11570                }
11571            });
11572            has_item
11573        });
11574
11575        assert!(
11576            !has_item,
11577            "Navigation history should not contain closed item entries"
11578        );
11579    }
11580
11581    #[gpui::test]
11582    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11583        cx: &mut TestAppContext,
11584    ) {
11585        init_test(cx);
11586
11587        let fs = FakeFs::new(cx.background_executor.clone());
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        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11592
11593        let dirty_regular_buffer = cx.new(|cx| {
11594            TestItem::new(cx)
11595                .with_dirty(true)
11596                .with_label("1.txt")
11597                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11598        });
11599        let dirty_regular_buffer_2 = cx.new(|cx| {
11600            TestItem::new(cx)
11601                .with_dirty(true)
11602                .with_label("2.txt")
11603                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11604        });
11605        let clear_regular_buffer = cx.new(|cx| {
11606            TestItem::new(cx)
11607                .with_label("3.txt")
11608                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11609        });
11610
11611        let dirty_multi_buffer = cx.new(|cx| {
11612            TestItem::new(cx)
11613                .with_dirty(true)
11614                .with_buffer_kind(ItemBufferKind::Multibuffer)
11615                .with_label("Fake Project Search")
11616                .with_project_items(&[
11617                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11618                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11619                    clear_regular_buffer.read(cx).project_items[0].clone(),
11620                ])
11621        });
11622        workspace.update_in(cx, |workspace, window, cx| {
11623            workspace.add_item(
11624                pane.clone(),
11625                Box::new(dirty_regular_buffer.clone()),
11626                None,
11627                false,
11628                false,
11629                window,
11630                cx,
11631            );
11632            workspace.add_item(
11633                pane.clone(),
11634                Box::new(dirty_regular_buffer_2.clone()),
11635                None,
11636                false,
11637                false,
11638                window,
11639                cx,
11640            );
11641            workspace.add_item(
11642                pane.clone(),
11643                Box::new(dirty_multi_buffer.clone()),
11644                None,
11645                false,
11646                false,
11647                window,
11648                cx,
11649            );
11650        });
11651
11652        pane.update_in(cx, |pane, window, cx| {
11653            pane.activate_item(2, true, true, window, cx);
11654            assert_eq!(
11655                pane.active_item().unwrap().item_id(),
11656                dirty_multi_buffer.item_id(),
11657                "Should select the multi buffer in the pane"
11658            );
11659        });
11660        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11661            pane.close_active_item(
11662                &CloseActiveItem {
11663                    save_intent: None,
11664                    close_pinned: false,
11665                },
11666                window,
11667                cx,
11668            )
11669        });
11670        cx.background_executor.run_until_parked();
11671        assert!(
11672            !cx.has_pending_prompt(),
11673            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11674        );
11675        close_multi_buffer_task
11676            .await
11677            .expect("Closing multi buffer failed");
11678        pane.update(cx, |pane, cx| {
11679            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11680            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11681            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11682            assert_eq!(
11683                pane.items()
11684                    .map(|item| item.item_id())
11685                    .sorted()
11686                    .collect::<Vec<_>>(),
11687                vec![
11688                    dirty_regular_buffer.item_id(),
11689                    dirty_regular_buffer_2.item_id(),
11690                ],
11691                "Should have no multi buffer left in the pane"
11692            );
11693            assert!(dirty_regular_buffer.read(cx).is_dirty);
11694            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11695        });
11696    }
11697
11698    #[gpui::test]
11699    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11700        init_test(cx);
11701        let fs = FakeFs::new(cx.executor());
11702        let project = Project::test(fs, [], cx).await;
11703        let (workspace, cx) =
11704            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11705
11706        // Add a new panel to the right dock, opening the dock and setting the
11707        // focus to the new panel.
11708        let panel = workspace.update_in(cx, |workspace, window, cx| {
11709            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11710            workspace.add_panel(panel.clone(), window, cx);
11711
11712            workspace
11713                .right_dock()
11714                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11715
11716            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11717
11718            panel
11719        });
11720
11721        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11722        // panel to the next valid position which, in this case, is the left
11723        // dock.
11724        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11725        workspace.update(cx, |workspace, cx| {
11726            assert!(workspace.left_dock().read(cx).is_open());
11727            assert_eq!(panel.read(cx).position, DockPosition::Left);
11728        });
11729
11730        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11731        // panel to the next valid position which, in this case, is the bottom
11732        // dock.
11733        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11734        workspace.update(cx, |workspace, cx| {
11735            assert!(workspace.bottom_dock().read(cx).is_open());
11736            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11737        });
11738
11739        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11740        // around moving the panel to its initial position, the right dock.
11741        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11742        workspace.update(cx, |workspace, cx| {
11743            assert!(workspace.right_dock().read(cx).is_open());
11744            assert_eq!(panel.read(cx).position, DockPosition::Right);
11745        });
11746
11747        // Remove focus from the panel, ensuring that, if the panel is not
11748        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11749        // the panel's position, so the panel is still in the right dock.
11750        workspace.update_in(cx, |workspace, window, cx| {
11751            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11752        });
11753
11754        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11755        workspace.update(cx, |workspace, cx| {
11756            assert!(workspace.right_dock().read(cx).is_open());
11757            assert_eq!(panel.read(cx).position, DockPosition::Right);
11758        });
11759    }
11760
11761    #[gpui::test]
11762    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11763        init_test(cx);
11764
11765        let fs = FakeFs::new(cx.executor());
11766        let project = Project::test(fs, [], cx).await;
11767        let (workspace, cx) =
11768            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11769
11770        let item_1 = cx.new(|cx| {
11771            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11772        });
11773        workspace.update_in(cx, |workspace, window, cx| {
11774            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11775            workspace.move_item_to_pane_in_direction(
11776                &MoveItemToPaneInDirection {
11777                    direction: SplitDirection::Right,
11778                    focus: true,
11779                    clone: false,
11780                },
11781                window,
11782                cx,
11783            );
11784            workspace.move_item_to_pane_at_index(
11785                &MoveItemToPane {
11786                    destination: 3,
11787                    focus: true,
11788                    clone: false,
11789                },
11790                window,
11791                cx,
11792            );
11793
11794            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11795            assert_eq!(
11796                pane_items_paths(&workspace.active_pane, cx),
11797                vec!["first.txt".to_string()],
11798                "Single item was not moved anywhere"
11799            );
11800        });
11801
11802        let item_2 = cx.new(|cx| {
11803            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11804        });
11805        workspace.update_in(cx, |workspace, window, cx| {
11806            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11807            assert_eq!(
11808                pane_items_paths(&workspace.panes[0], cx),
11809                vec!["first.txt".to_string(), "second.txt".to_string()],
11810            );
11811            workspace.move_item_to_pane_in_direction(
11812                &MoveItemToPaneInDirection {
11813                    direction: SplitDirection::Right,
11814                    focus: true,
11815                    clone: false,
11816                },
11817                window,
11818                cx,
11819            );
11820
11821            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11822            assert_eq!(
11823                pane_items_paths(&workspace.panes[0], cx),
11824                vec!["first.txt".to_string()],
11825                "After moving, one item should be left in the original pane"
11826            );
11827            assert_eq!(
11828                pane_items_paths(&workspace.panes[1], cx),
11829                vec!["second.txt".to_string()],
11830                "New item should have been moved to the new pane"
11831            );
11832        });
11833
11834        let item_3 = cx.new(|cx| {
11835            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11836        });
11837        workspace.update_in(cx, |workspace, window, cx| {
11838            let original_pane = workspace.panes[0].clone();
11839            workspace.set_active_pane(&original_pane, window, cx);
11840            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11841            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11842            assert_eq!(
11843                pane_items_paths(&workspace.active_pane, cx),
11844                vec!["first.txt".to_string(), "third.txt".to_string()],
11845                "New pane should be ready to move one item out"
11846            );
11847
11848            workspace.move_item_to_pane_at_index(
11849                &MoveItemToPane {
11850                    destination: 3,
11851                    focus: true,
11852                    clone: false,
11853                },
11854                window,
11855                cx,
11856            );
11857            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11858            assert_eq!(
11859                pane_items_paths(&workspace.active_pane, cx),
11860                vec!["first.txt".to_string()],
11861                "After moving, one item should be left in the original pane"
11862            );
11863            assert_eq!(
11864                pane_items_paths(&workspace.panes[1], cx),
11865                vec!["second.txt".to_string()],
11866                "Previously created pane should be unchanged"
11867            );
11868            assert_eq!(
11869                pane_items_paths(&workspace.panes[2], cx),
11870                vec!["third.txt".to_string()],
11871                "New item should have been moved to the new pane"
11872            );
11873        });
11874    }
11875
11876    #[gpui::test]
11877    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11878        init_test(cx);
11879
11880        let fs = FakeFs::new(cx.executor());
11881        let project = Project::test(fs, [], cx).await;
11882        let (workspace, cx) =
11883            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11884
11885        let item_1 = cx.new(|cx| {
11886            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11887        });
11888        workspace.update_in(cx, |workspace, window, cx| {
11889            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11890            workspace.move_item_to_pane_in_direction(
11891                &MoveItemToPaneInDirection {
11892                    direction: SplitDirection::Right,
11893                    focus: true,
11894                    clone: true,
11895                },
11896                window,
11897                cx,
11898            );
11899        });
11900        cx.run_until_parked();
11901        workspace.update_in(cx, |workspace, window, cx| {
11902            workspace.move_item_to_pane_at_index(
11903                &MoveItemToPane {
11904                    destination: 3,
11905                    focus: true,
11906                    clone: true,
11907                },
11908                window,
11909                cx,
11910            );
11911        });
11912        cx.run_until_parked();
11913
11914        workspace.update(cx, |workspace, cx| {
11915            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11916            for pane in workspace.panes() {
11917                assert_eq!(
11918                    pane_items_paths(pane, cx),
11919                    vec!["first.txt".to_string()],
11920                    "Single item exists in all panes"
11921                );
11922            }
11923        });
11924
11925        // verify that the active pane has been updated after waiting for the
11926        // pane focus event to fire and resolve
11927        workspace.read_with(cx, |workspace, _app| {
11928            assert_eq!(
11929                workspace.active_pane(),
11930                &workspace.panes[2],
11931                "The third pane should be the active one: {:?}",
11932                workspace.panes
11933            );
11934        })
11935    }
11936
11937    mod register_project_item_tests {
11938
11939        use super::*;
11940
11941        // View
11942        struct TestPngItemView {
11943            focus_handle: FocusHandle,
11944        }
11945        // Model
11946        struct TestPngItem {}
11947
11948        impl project::ProjectItem for TestPngItem {
11949            fn try_open(
11950                _project: &Entity<Project>,
11951                path: &ProjectPath,
11952                cx: &mut App,
11953            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11954                if path.path.extension().unwrap() == "png" {
11955                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
11956                } else {
11957                    None
11958                }
11959            }
11960
11961            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11962                None
11963            }
11964
11965            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11966                None
11967            }
11968
11969            fn is_dirty(&self) -> bool {
11970                false
11971            }
11972        }
11973
11974        impl Item for TestPngItemView {
11975            type Event = ();
11976            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11977                "".into()
11978            }
11979        }
11980        impl EventEmitter<()> for TestPngItemView {}
11981        impl Focusable for TestPngItemView {
11982            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11983                self.focus_handle.clone()
11984            }
11985        }
11986
11987        impl Render for TestPngItemView {
11988            fn render(
11989                &mut self,
11990                _window: &mut Window,
11991                _cx: &mut Context<Self>,
11992            ) -> impl IntoElement {
11993                Empty
11994            }
11995        }
11996
11997        impl ProjectItem for TestPngItemView {
11998            type Item = TestPngItem;
11999
12000            fn for_project_item(
12001                _project: Entity<Project>,
12002                _pane: Option<&Pane>,
12003                _item: Entity<Self::Item>,
12004                _: &mut Window,
12005                cx: &mut Context<Self>,
12006            ) -> Self
12007            where
12008                Self: Sized,
12009            {
12010                Self {
12011                    focus_handle: cx.focus_handle(),
12012                }
12013            }
12014        }
12015
12016        // View
12017        struct TestIpynbItemView {
12018            focus_handle: FocusHandle,
12019        }
12020        // Model
12021        struct TestIpynbItem {}
12022
12023        impl project::ProjectItem for TestIpynbItem {
12024            fn try_open(
12025                _project: &Entity<Project>,
12026                path: &ProjectPath,
12027                cx: &mut App,
12028            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12029                if path.path.extension().unwrap() == "ipynb" {
12030                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
12031                } else {
12032                    None
12033                }
12034            }
12035
12036            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12037                None
12038            }
12039
12040            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12041                None
12042            }
12043
12044            fn is_dirty(&self) -> bool {
12045                false
12046            }
12047        }
12048
12049        impl Item for TestIpynbItemView {
12050            type Event = ();
12051            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12052                "".into()
12053            }
12054        }
12055        impl EventEmitter<()> for TestIpynbItemView {}
12056        impl Focusable for TestIpynbItemView {
12057            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12058                self.focus_handle.clone()
12059            }
12060        }
12061
12062        impl Render for TestIpynbItemView {
12063            fn render(
12064                &mut self,
12065                _window: &mut Window,
12066                _cx: &mut Context<Self>,
12067            ) -> impl IntoElement {
12068                Empty
12069            }
12070        }
12071
12072        impl ProjectItem for TestIpynbItemView {
12073            type Item = TestIpynbItem;
12074
12075            fn for_project_item(
12076                _project: Entity<Project>,
12077                _pane: Option<&Pane>,
12078                _item: Entity<Self::Item>,
12079                _: &mut Window,
12080                cx: &mut Context<Self>,
12081            ) -> Self
12082            where
12083                Self: Sized,
12084            {
12085                Self {
12086                    focus_handle: cx.focus_handle(),
12087                }
12088            }
12089        }
12090
12091        struct TestAlternatePngItemView {
12092            focus_handle: FocusHandle,
12093        }
12094
12095        impl Item for TestAlternatePngItemView {
12096            type Event = ();
12097            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12098                "".into()
12099            }
12100        }
12101
12102        impl EventEmitter<()> for TestAlternatePngItemView {}
12103        impl Focusable for TestAlternatePngItemView {
12104            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12105                self.focus_handle.clone()
12106            }
12107        }
12108
12109        impl Render for TestAlternatePngItemView {
12110            fn render(
12111                &mut self,
12112                _window: &mut Window,
12113                _cx: &mut Context<Self>,
12114            ) -> impl IntoElement {
12115                Empty
12116            }
12117        }
12118
12119        impl ProjectItem for TestAlternatePngItemView {
12120            type Item = TestPngItem;
12121
12122            fn for_project_item(
12123                _project: Entity<Project>,
12124                _pane: Option<&Pane>,
12125                _item: Entity<Self::Item>,
12126                _: &mut Window,
12127                cx: &mut Context<Self>,
12128            ) -> Self
12129            where
12130                Self: Sized,
12131            {
12132                Self {
12133                    focus_handle: cx.focus_handle(),
12134                }
12135            }
12136        }
12137
12138        #[gpui::test]
12139        async fn test_register_project_item(cx: &mut TestAppContext) {
12140            init_test(cx);
12141
12142            cx.update(|cx| {
12143                register_project_item::<TestPngItemView>(cx);
12144                register_project_item::<TestIpynbItemView>(cx);
12145            });
12146
12147            let fs = FakeFs::new(cx.executor());
12148            fs.insert_tree(
12149                "/root1",
12150                json!({
12151                    "one.png": "BINARYDATAHERE",
12152                    "two.ipynb": "{ totally a notebook }",
12153                    "three.txt": "editing text, sure why not?"
12154                }),
12155            )
12156            .await;
12157
12158            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12159            let (workspace, cx) =
12160                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12161
12162            let worktree_id = project.update(cx, |project, cx| {
12163                project.worktrees(cx).next().unwrap().read(cx).id()
12164            });
12165
12166            let handle = workspace
12167                .update_in(cx, |workspace, window, cx| {
12168                    let project_path = (worktree_id, rel_path("one.png"));
12169                    workspace.open_path(project_path, None, true, window, cx)
12170                })
12171                .await
12172                .unwrap();
12173
12174            // Now we can check if the handle we got back errored or not
12175            assert_eq!(
12176                handle.to_any_view().entity_type(),
12177                TypeId::of::<TestPngItemView>()
12178            );
12179
12180            let handle = workspace
12181                .update_in(cx, |workspace, window, cx| {
12182                    let project_path = (worktree_id, rel_path("two.ipynb"));
12183                    workspace.open_path(project_path, None, true, window, cx)
12184                })
12185                .await
12186                .unwrap();
12187
12188            assert_eq!(
12189                handle.to_any_view().entity_type(),
12190                TypeId::of::<TestIpynbItemView>()
12191            );
12192
12193            let handle = workspace
12194                .update_in(cx, |workspace, window, cx| {
12195                    let project_path = (worktree_id, rel_path("three.txt"));
12196                    workspace.open_path(project_path, None, true, window, cx)
12197                })
12198                .await;
12199            assert!(handle.is_err());
12200        }
12201
12202        #[gpui::test]
12203        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
12204            init_test(cx);
12205
12206            cx.update(|cx| {
12207                register_project_item::<TestPngItemView>(cx);
12208                register_project_item::<TestAlternatePngItemView>(cx);
12209            });
12210
12211            let fs = FakeFs::new(cx.executor());
12212            fs.insert_tree(
12213                "/root1",
12214                json!({
12215                    "one.png": "BINARYDATAHERE",
12216                    "two.ipynb": "{ totally a notebook }",
12217                    "three.txt": "editing text, sure why not?"
12218                }),
12219            )
12220            .await;
12221            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12222            let (workspace, cx) =
12223                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12224            let worktree_id = project.update(cx, |project, cx| {
12225                project.worktrees(cx).next().unwrap().read(cx).id()
12226            });
12227
12228            let handle = workspace
12229                .update_in(cx, |workspace, window, cx| {
12230                    let project_path = (worktree_id, rel_path("one.png"));
12231                    workspace.open_path(project_path, None, true, window, cx)
12232                })
12233                .await
12234                .unwrap();
12235
12236            // This _must_ be the second item registered
12237            assert_eq!(
12238                handle.to_any_view().entity_type(),
12239                TypeId::of::<TestAlternatePngItemView>()
12240            );
12241
12242            let handle = workspace
12243                .update_in(cx, |workspace, window, cx| {
12244                    let project_path = (worktree_id, rel_path("three.txt"));
12245                    workspace.open_path(project_path, None, true, window, cx)
12246                })
12247                .await;
12248            assert!(handle.is_err());
12249        }
12250    }
12251
12252    #[gpui::test]
12253    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
12254        init_test(cx);
12255
12256        let fs = FakeFs::new(cx.executor());
12257        let project = Project::test(fs, [], cx).await;
12258        let (workspace, _cx) =
12259            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12260
12261        // Test with status bar shown (default)
12262        workspace.read_with(cx, |workspace, cx| {
12263            let visible = workspace.status_bar_visible(cx);
12264            assert!(visible, "Status bar should be visible by default");
12265        });
12266
12267        // Test with status bar hidden
12268        cx.update_global(|store: &mut SettingsStore, cx| {
12269            store.update_user_settings(cx, |settings| {
12270                settings.status_bar.get_or_insert_default().show = Some(false);
12271            });
12272        });
12273
12274        workspace.read_with(cx, |workspace, cx| {
12275            let visible = workspace.status_bar_visible(cx);
12276            assert!(!visible, "Status bar should be hidden when show is false");
12277        });
12278
12279        // Test with status bar shown explicitly
12280        cx.update_global(|store: &mut SettingsStore, cx| {
12281            store.update_user_settings(cx, |settings| {
12282                settings.status_bar.get_or_insert_default().show = Some(true);
12283            });
12284        });
12285
12286        workspace.read_with(cx, |workspace, cx| {
12287            let visible = workspace.status_bar_visible(cx);
12288            assert!(visible, "Status bar should be visible when show is true");
12289        });
12290    }
12291
12292    #[gpui::test]
12293    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
12294        init_test(cx);
12295
12296        let fs = FakeFs::new(cx.executor());
12297        let project = Project::test(fs, [], cx).await;
12298        let (workspace, cx) =
12299            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12300        let panel = workspace.update_in(cx, |workspace, window, cx| {
12301            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12302            workspace.add_panel(panel.clone(), window, cx);
12303
12304            workspace
12305                .right_dock()
12306                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12307
12308            panel
12309        });
12310
12311        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12312        let item_a = cx.new(TestItem::new);
12313        let item_b = cx.new(TestItem::new);
12314        let item_a_id = item_a.entity_id();
12315        let item_b_id = item_b.entity_id();
12316
12317        pane.update_in(cx, |pane, window, cx| {
12318            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
12319            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12320        });
12321
12322        pane.read_with(cx, |pane, _| {
12323            assert_eq!(pane.items_len(), 2);
12324            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
12325        });
12326
12327        workspace.update_in(cx, |workspace, window, cx| {
12328            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12329        });
12330
12331        workspace.update_in(cx, |_, window, cx| {
12332            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12333        });
12334
12335        // Assert that the `pane::CloseActiveItem` action is handled at the
12336        // workspace level when one of the dock panels is focused and, in that
12337        // case, the center pane's active item is closed but the focus is not
12338        // moved.
12339        cx.dispatch_action(pane::CloseActiveItem::default());
12340        cx.run_until_parked();
12341
12342        pane.read_with(cx, |pane, _| {
12343            assert_eq!(pane.items_len(), 1);
12344            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
12345        });
12346
12347        workspace.update_in(cx, |workspace, window, cx| {
12348            assert!(workspace.right_dock().read(cx).is_open());
12349            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12350        });
12351    }
12352
12353    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
12354        pane.read(cx)
12355            .items()
12356            .flat_map(|item| {
12357                item.project_paths(cx)
12358                    .into_iter()
12359                    .map(|path| path.path.display(PathStyle::local()).into_owned())
12360            })
12361            .collect()
12362    }
12363
12364    pub fn init_test(cx: &mut TestAppContext) {
12365        cx.update(|cx| {
12366            let settings_store = SettingsStore::test(cx);
12367            cx.set_global(settings_store);
12368            theme::init(theme::LoadThemes::JustBase, cx);
12369        });
12370    }
12371
12372    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
12373        let item = TestProjectItem::new(id, path, cx);
12374        item.update(cx, |item, _| {
12375            item.is_dirty = true;
12376        });
12377        item
12378    }
12379}