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                    this.update_window_edited(window, cx);
 1328                }
 1329
 1330                project::Event::Closed => {
 1331                    window.remove_window();
 1332                }
 1333
 1334                project::Event::DeletedEntry(_, entry_id) => {
 1335                    for pane in this.panes.iter() {
 1336                        pane.update(cx, |pane, cx| {
 1337                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1338                        });
 1339                    }
 1340                }
 1341
 1342                project::Event::Toast {
 1343                    notification_id,
 1344                    message,
 1345                } => this.show_notification(
 1346                    NotificationId::named(notification_id.clone()),
 1347                    cx,
 1348                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1349                ),
 1350
 1351                project::Event::HideToast { notification_id } => {
 1352                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1353                }
 1354
 1355                project::Event::LanguageServerPrompt(request) => {
 1356                    struct LanguageServerPrompt;
 1357
 1358                    let mut hasher = DefaultHasher::new();
 1359                    request.lsp_name.as_str().hash(&mut hasher);
 1360                    let id = hasher.finish();
 1361
 1362                    this.show_notification(
 1363                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1364                        cx,
 1365                        |cx| {
 1366                            cx.new(|cx| {
 1367                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1368                            })
 1369                        },
 1370                    );
 1371                }
 1372
 1373                project::Event::AgentLocationChanged => {
 1374                    this.handle_agent_location_changed(window, cx)
 1375                }
 1376
 1377                _ => {}
 1378            }
 1379            cx.notify()
 1380        })
 1381        .detach();
 1382
 1383        cx.subscribe_in(
 1384            &project.read(cx).breakpoint_store(),
 1385            window,
 1386            |workspace, _, event, window, cx| match event {
 1387                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1388                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1389                    workspace.serialize_workspace(window, cx);
 1390                }
 1391                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1392            },
 1393        )
 1394        .detach();
 1395        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1396            cx.subscribe_in(
 1397                &toolchain_store,
 1398                window,
 1399                |workspace, _, event, window, cx| match event {
 1400                    ToolchainStoreEvent::CustomToolchainsModified => {
 1401                        workspace.serialize_workspace(window, cx);
 1402                    }
 1403                    _ => {}
 1404                },
 1405            )
 1406            .detach();
 1407        }
 1408
 1409        cx.on_focus_lost(window, |this, window, cx| {
 1410            let focus_handle = this.focus_handle(cx);
 1411            window.focus(&focus_handle, cx);
 1412        })
 1413        .detach();
 1414
 1415        let weak_handle = cx.entity().downgrade();
 1416        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1417
 1418        let center_pane = cx.new(|cx| {
 1419            let mut center_pane = Pane::new(
 1420                weak_handle.clone(),
 1421                project.clone(),
 1422                pane_history_timestamp.clone(),
 1423                None,
 1424                NewFile.boxed_clone(),
 1425                true,
 1426                window,
 1427                cx,
 1428            );
 1429            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1430            center_pane
 1431        });
 1432        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1433            .detach();
 1434
 1435        window.focus(&center_pane.focus_handle(cx), cx);
 1436
 1437        cx.emit(Event::PaneAdded(center_pane.clone()));
 1438
 1439        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1440        app_state.workspace_store.update(cx, |store, _| {
 1441            store.workspaces.insert(window_handle);
 1442        });
 1443
 1444        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1445        let mut connection_status = app_state.client.status();
 1446        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1447            current_user.next().await;
 1448            connection_status.next().await;
 1449            let mut stream =
 1450                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1451
 1452            while stream.recv().await.is_some() {
 1453                this.update(cx, |_, cx| cx.notify())?;
 1454            }
 1455            anyhow::Ok(())
 1456        });
 1457
 1458        // All leader updates are enqueued and then processed in a single task, so
 1459        // that each asynchronous operation can be run in order.
 1460        let (leader_updates_tx, mut leader_updates_rx) =
 1461            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1462        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1463            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1464                Self::process_leader_update(&this, leader_id, update, cx)
 1465                    .await
 1466                    .log_err();
 1467            }
 1468
 1469            Ok(())
 1470        });
 1471
 1472        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1473        let modal_layer = cx.new(|_| ModalLayer::new());
 1474        let toast_layer = cx.new(|_| ToastLayer::new());
 1475        cx.subscribe(
 1476            &modal_layer,
 1477            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1478                cx.emit(Event::ModalOpened);
 1479            },
 1480        )
 1481        .detach();
 1482
 1483        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1484        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1485        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1486        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1487        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1488        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1489        let status_bar = cx.new(|cx| {
 1490            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1491            status_bar.add_left_item(left_dock_buttons, window, cx);
 1492            status_bar.add_right_item(right_dock_buttons, window, cx);
 1493            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1494            status_bar
 1495        });
 1496
 1497        let session_id = app_state.session.read(cx).id().to_owned();
 1498
 1499        let mut active_call = None;
 1500        if let Some(call) = ActiveCall::try_global(cx) {
 1501            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1502            active_call = Some((call, subscriptions));
 1503        }
 1504
 1505        let (serializable_items_tx, serializable_items_rx) =
 1506            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1507        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1508            Self::serialize_items(&this, serializable_items_rx, cx).await
 1509        });
 1510
 1511        let subscriptions = vec![
 1512            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1513            cx.observe_window_bounds(window, move |this, window, cx| {
 1514                if this.bounds_save_task_queued.is_some() {
 1515                    return;
 1516                }
 1517                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1518                    cx.background_executor()
 1519                        .timer(Duration::from_millis(100))
 1520                        .await;
 1521                    this.update_in(cx, |this, window, cx| {
 1522                        if let Some(display) = window.display(cx)
 1523                            && let Ok(display_uuid) = display.uuid()
 1524                        {
 1525                            let window_bounds = window.inner_window_bounds();
 1526                            let has_paths = !this.root_paths(cx).is_empty();
 1527                            if !has_paths {
 1528                                cx.background_executor()
 1529                                    .spawn(persistence::write_default_window_bounds(
 1530                                        window_bounds,
 1531                                        display_uuid,
 1532                                    ))
 1533                                    .detach_and_log_err(cx);
 1534                            }
 1535                            if let Some(database_id) = workspace_id {
 1536                                cx.background_executor()
 1537                                    .spawn(DB.set_window_open_status(
 1538                                        database_id,
 1539                                        SerializedWindowBounds(window_bounds),
 1540                                        display_uuid,
 1541                                    ))
 1542                                    .detach_and_log_err(cx);
 1543                            } else {
 1544                                cx.background_executor()
 1545                                    .spawn(persistence::write_default_window_bounds(
 1546                                        window_bounds,
 1547                                        display_uuid,
 1548                                    ))
 1549                                    .detach_and_log_err(cx);
 1550                            }
 1551                        }
 1552                        this.bounds_save_task_queued.take();
 1553                    })
 1554                    .ok();
 1555                }));
 1556                cx.notify();
 1557            }),
 1558            cx.observe_window_appearance(window, |_, window, cx| {
 1559                let window_appearance = window.appearance();
 1560
 1561                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1562
 1563                GlobalTheme::reload_theme(cx);
 1564                GlobalTheme::reload_icon_theme(cx);
 1565            }),
 1566            cx.on_release(move |this, cx| {
 1567                this.app_state.workspace_store.update(cx, move |store, _| {
 1568                    store.workspaces.remove(&window_handle);
 1569                })
 1570            }),
 1571        ];
 1572
 1573        cx.defer_in(window, move |this, window, cx| {
 1574            this.update_window_title(window, cx);
 1575            this.show_initial_notifications(cx);
 1576        });
 1577
 1578        let mut center = PaneGroup::new(center_pane.clone());
 1579        center.set_is_center(true);
 1580        center.mark_positions(cx);
 1581
 1582        Workspace {
 1583            weak_self: weak_handle.clone(),
 1584            zoomed: None,
 1585            zoomed_position: None,
 1586            previous_dock_drag_coordinates: None,
 1587            center,
 1588            panes: vec![center_pane.clone()],
 1589            panes_by_item: Default::default(),
 1590            active_pane: center_pane.clone(),
 1591            last_active_center_pane: Some(center_pane.downgrade()),
 1592            last_active_view_id: None,
 1593            status_bar,
 1594            modal_layer,
 1595            toast_layer,
 1596            titlebar_item: None,
 1597            active_worktree_override: None,
 1598            notifications: Notifications::default(),
 1599            suppressed_notifications: HashSet::default(),
 1600            left_dock,
 1601            bottom_dock,
 1602            right_dock,
 1603            project: project.clone(),
 1604            follower_states: Default::default(),
 1605            last_leaders_by_pane: Default::default(),
 1606            dispatching_keystrokes: Default::default(),
 1607            window_edited: false,
 1608            last_window_title: None,
 1609            dirty_items: Default::default(),
 1610            active_call,
 1611            database_id: workspace_id,
 1612            app_state,
 1613            _observe_current_user,
 1614            _apply_leader_updates,
 1615            _schedule_serialize_workspace: None,
 1616            _schedule_serialize_ssh_paths: None,
 1617            leader_updates_tx,
 1618            _subscriptions: subscriptions,
 1619            pane_history_timestamp,
 1620            workspace_actions: Default::default(),
 1621            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1622            bounds: Default::default(),
 1623            centered_layout: false,
 1624            bounds_save_task_queued: None,
 1625            on_prompt_for_new_path: None,
 1626            on_prompt_for_open_path: None,
 1627            terminal_provider: None,
 1628            debugger_provider: None,
 1629            serializable_items_tx,
 1630            _items_serializer,
 1631            session_id: Some(session_id),
 1632
 1633            scheduled_tasks: Vec::new(),
 1634            last_open_dock_positions: Vec::new(),
 1635            removing: false,
 1636            utility_panes: UtilityPaneState::default(),
 1637        }
 1638    }
 1639
 1640    pub fn new_local(
 1641        abs_paths: Vec<PathBuf>,
 1642        app_state: Arc<AppState>,
 1643        requesting_window: Option<WindowHandle<Workspace>>,
 1644        env: Option<HashMap<String, String>>,
 1645        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1646        cx: &mut App,
 1647    ) -> Task<
 1648        anyhow::Result<(
 1649            WindowHandle<Workspace>,
 1650            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1651        )>,
 1652    > {
 1653        let project_handle = Project::local(
 1654            app_state.client.clone(),
 1655            app_state.node_runtime.clone(),
 1656            app_state.user_store.clone(),
 1657            app_state.languages.clone(),
 1658            app_state.fs.clone(),
 1659            env,
 1660            true,
 1661            cx,
 1662        );
 1663
 1664        cx.spawn(async move |cx| {
 1665            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1666            for path in abs_paths.into_iter() {
 1667                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1668                    paths_to_open.push(canonical)
 1669                } else {
 1670                    paths_to_open.push(path)
 1671                }
 1672            }
 1673
 1674            let serialized_workspace =
 1675                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1676
 1677            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1678                paths_to_open = paths.ordered_paths().cloned().collect();
 1679                if !paths.is_lexicographically_ordered() {
 1680                    project_handle.update(cx, |project, cx| {
 1681                        project.set_worktrees_reordered(true, cx);
 1682                    });
 1683                }
 1684            }
 1685
 1686            // Get project paths for all of the abs_paths
 1687            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1688                Vec::with_capacity(paths_to_open.len());
 1689
 1690            for path in paths_to_open.into_iter() {
 1691                if let Some((_, project_entry)) = cx
 1692                    .update(|cx| {
 1693                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1694                    })
 1695                    .await
 1696                    .log_err()
 1697                {
 1698                    project_paths.push((path, Some(project_entry)));
 1699                } else {
 1700                    project_paths.push((path, None));
 1701                }
 1702            }
 1703
 1704            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1705                serialized_workspace.id
 1706            } else {
 1707                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1708            };
 1709
 1710            let toolchains = DB.toolchains(workspace_id).await?;
 1711
 1712            for (toolchain, worktree_path, path) in toolchains {
 1713                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1714                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1715                    this.find_worktree(&worktree_path, cx)
 1716                        .and_then(|(worktree, rel_path)| {
 1717                            if rel_path.is_empty() {
 1718                                Some(worktree.read(cx).id())
 1719                            } else {
 1720                                None
 1721                            }
 1722                        })
 1723                }) else {
 1724                    // We did not find a worktree with a given path, but that's whatever.
 1725                    continue;
 1726                };
 1727                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1728                    continue;
 1729                }
 1730
 1731                project_handle
 1732                    .update(cx, |this, cx| {
 1733                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1734                    })
 1735                    .await;
 1736            }
 1737            if let Some(workspace) = serialized_workspace.as_ref() {
 1738                project_handle.update(cx, |this, cx| {
 1739                    for (scope, toolchains) in &workspace.user_toolchains {
 1740                        for toolchain in toolchains {
 1741                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1742                        }
 1743                    }
 1744                });
 1745            }
 1746
 1747            let window = if let Some(window) = requesting_window {
 1748                let centered_layout = serialized_workspace
 1749                    .as_ref()
 1750                    .map(|w| w.centered_layout)
 1751                    .unwrap_or(false);
 1752
 1753                cx.update_window(window.into(), |_, window, cx| {
 1754                    window.replace_root(cx, |window, cx| {
 1755                        let mut workspace = Workspace::new(
 1756                            Some(workspace_id),
 1757                            project_handle.clone(),
 1758                            app_state.clone(),
 1759                            window,
 1760                            cx,
 1761                        );
 1762
 1763                        workspace.centered_layout = centered_layout;
 1764
 1765                        // Call init callback to add items before window renders
 1766                        if let Some(init) = init {
 1767                            init(&mut workspace, window, cx);
 1768                        }
 1769
 1770                        workspace
 1771                    });
 1772                })?;
 1773                window
 1774            } else {
 1775                let window_bounds_override = window_bounds_env_override();
 1776
 1777                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1778                    (Some(WindowBounds::Windowed(bounds)), None)
 1779                } else if let Some(workspace) = serialized_workspace.as_ref()
 1780                    && let Some(display) = workspace.display
 1781                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1782                {
 1783                    // Reopening an existing workspace - restore its saved bounds
 1784                    (Some(bounds.0), Some(display))
 1785                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1786                    // New or empty workspace - use the last known window bounds
 1787                    (Some(bounds), Some(display))
 1788                } else {
 1789                    // New window - let GPUI's default_bounds() handle cascading
 1790                    (None, None)
 1791                };
 1792
 1793                // Use the serialized workspace to construct the new window
 1794                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1795                options.window_bounds = window_bounds;
 1796                let centered_layout = serialized_workspace
 1797                    .as_ref()
 1798                    .map(|w| w.centered_layout)
 1799                    .unwrap_or(false);
 1800                cx.open_window(options, {
 1801                    let app_state = app_state.clone();
 1802                    let project_handle = project_handle.clone();
 1803                    move |window, cx| {
 1804                        cx.new(|cx| {
 1805                            let mut workspace = Workspace::new(
 1806                                Some(workspace_id),
 1807                                project_handle,
 1808                                app_state,
 1809                                window,
 1810                                cx,
 1811                            );
 1812                            workspace.centered_layout = centered_layout;
 1813
 1814                            // Call init callback to add items before window renders
 1815                            if let Some(init) = init {
 1816                                init(&mut workspace, window, cx);
 1817                            }
 1818
 1819                            workspace
 1820                        })
 1821                    }
 1822                })?
 1823            };
 1824
 1825            notify_if_database_failed(window, cx);
 1826            let opened_items = window
 1827                .update(cx, |_workspace, window, cx| {
 1828                    open_items(serialized_workspace, project_paths, window, cx)
 1829                })?
 1830                .await
 1831                .unwrap_or_default();
 1832
 1833            window
 1834                .update(cx, |workspace, window, cx| {
 1835                    window.activate_window();
 1836                    workspace.update_history(cx);
 1837                })
 1838                .log_err();
 1839            Ok((window, opened_items))
 1840        })
 1841    }
 1842
 1843    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1844        self.weak_self.clone()
 1845    }
 1846
 1847    pub fn left_dock(&self) -> &Entity<Dock> {
 1848        &self.left_dock
 1849    }
 1850
 1851    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1852        &self.bottom_dock
 1853    }
 1854
 1855    pub fn set_bottom_dock_layout(
 1856        &mut self,
 1857        layout: BottomDockLayout,
 1858        window: &mut Window,
 1859        cx: &mut Context<Self>,
 1860    ) {
 1861        let fs = self.project().read(cx).fs();
 1862        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1863            content.workspace.bottom_dock_layout = Some(layout);
 1864        });
 1865
 1866        cx.notify();
 1867        self.serialize_workspace(window, cx);
 1868    }
 1869
 1870    pub fn right_dock(&self) -> &Entity<Dock> {
 1871        &self.right_dock
 1872    }
 1873
 1874    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1875        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1876    }
 1877
 1878    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1879        match position {
 1880            DockPosition::Left => &self.left_dock,
 1881            DockPosition::Bottom => &self.bottom_dock,
 1882            DockPosition::Right => &self.right_dock,
 1883        }
 1884    }
 1885
 1886    pub fn is_edited(&self) -> bool {
 1887        self.window_edited
 1888    }
 1889
 1890    pub fn add_panel<T: Panel>(
 1891        &mut self,
 1892        panel: Entity<T>,
 1893        window: &mut Window,
 1894        cx: &mut Context<Self>,
 1895    ) {
 1896        let focus_handle = panel.panel_focus_handle(cx);
 1897        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1898            .detach();
 1899
 1900        let dock_position = panel.position(window, cx);
 1901        let dock = self.dock_at_position(dock_position);
 1902
 1903        dock.update(cx, |dock, cx| {
 1904            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1905        });
 1906    }
 1907
 1908    pub fn remove_panel<T: Panel>(
 1909        &mut self,
 1910        panel: &Entity<T>,
 1911        window: &mut Window,
 1912        cx: &mut Context<Self>,
 1913    ) {
 1914        let mut found_in_dock = None;
 1915        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1916            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1917
 1918            if found {
 1919                found_in_dock = Some(dock.clone());
 1920            }
 1921        }
 1922        if let Some(found_in_dock) = found_in_dock {
 1923            let position = found_in_dock.read(cx).position();
 1924            let slot = utility_slot_for_dock_position(position);
 1925            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1926        }
 1927    }
 1928
 1929    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1930        &self.status_bar
 1931    }
 1932
 1933    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1934        StatusBarSettings::get_global(cx).show
 1935    }
 1936
 1937    pub fn app_state(&self) -> &Arc<AppState> {
 1938        &self.app_state
 1939    }
 1940
 1941    pub fn user_store(&self) -> &Entity<UserStore> {
 1942        &self.app_state.user_store
 1943    }
 1944
 1945    pub fn project(&self) -> &Entity<Project> {
 1946        &self.project
 1947    }
 1948
 1949    pub fn path_style(&self, cx: &App) -> PathStyle {
 1950        self.project.read(cx).path_style(cx)
 1951    }
 1952
 1953    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1954        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1955
 1956        for pane_handle in &self.panes {
 1957            let pane = pane_handle.read(cx);
 1958
 1959            for entry in pane.activation_history() {
 1960                history.insert(
 1961                    entry.entity_id,
 1962                    history
 1963                        .get(&entry.entity_id)
 1964                        .cloned()
 1965                        .unwrap_or(0)
 1966                        .max(entry.timestamp),
 1967                );
 1968            }
 1969        }
 1970
 1971        history
 1972    }
 1973
 1974    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1975        let mut recent_item: Option<Entity<T>> = None;
 1976        let mut recent_timestamp = 0;
 1977        for pane_handle in &self.panes {
 1978            let pane = pane_handle.read(cx);
 1979            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1980                pane.items().map(|item| (item.item_id(), item)).collect();
 1981            for entry in pane.activation_history() {
 1982                if entry.timestamp > recent_timestamp
 1983                    && let Some(&item) = item_map.get(&entry.entity_id)
 1984                    && let Some(typed_item) = item.act_as::<T>(cx)
 1985                {
 1986                    recent_timestamp = entry.timestamp;
 1987                    recent_item = Some(typed_item);
 1988                }
 1989            }
 1990        }
 1991        recent_item
 1992    }
 1993
 1994    pub fn recent_navigation_history_iter(
 1995        &self,
 1996        cx: &App,
 1997    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1998        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1999        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2000
 2001        for pane in &self.panes {
 2002            let pane = pane.read(cx);
 2003
 2004            pane.nav_history()
 2005                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2006                    if let Some(fs_path) = &fs_path {
 2007                        abs_paths_opened
 2008                            .entry(fs_path.clone())
 2009                            .or_default()
 2010                            .insert(project_path.clone());
 2011                    }
 2012                    let timestamp = entry.timestamp;
 2013                    match history.entry(project_path) {
 2014                        hash_map::Entry::Occupied(mut entry) => {
 2015                            let (_, old_timestamp) = entry.get();
 2016                            if &timestamp > old_timestamp {
 2017                                entry.insert((fs_path, timestamp));
 2018                            }
 2019                        }
 2020                        hash_map::Entry::Vacant(entry) => {
 2021                            entry.insert((fs_path, timestamp));
 2022                        }
 2023                    }
 2024                });
 2025
 2026            if let Some(item) = pane.active_item()
 2027                && let Some(project_path) = item.project_path(cx)
 2028            {
 2029                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2030
 2031                if let Some(fs_path) = &fs_path {
 2032                    abs_paths_opened
 2033                        .entry(fs_path.clone())
 2034                        .or_default()
 2035                        .insert(project_path.clone());
 2036                }
 2037
 2038                history.insert(project_path, (fs_path, std::usize::MAX));
 2039            }
 2040        }
 2041
 2042        history
 2043            .into_iter()
 2044            .sorted_by_key(|(_, (_, order))| *order)
 2045            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2046            .rev()
 2047            .filter(move |(history_path, abs_path)| {
 2048                let latest_project_path_opened = abs_path
 2049                    .as_ref()
 2050                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2051                    .and_then(|project_paths| {
 2052                        project_paths
 2053                            .iter()
 2054                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2055                    });
 2056
 2057                latest_project_path_opened.is_none_or(|path| path == history_path)
 2058            })
 2059    }
 2060
 2061    pub fn recent_navigation_history(
 2062        &self,
 2063        limit: Option<usize>,
 2064        cx: &App,
 2065    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2066        self.recent_navigation_history_iter(cx)
 2067            .take(limit.unwrap_or(usize::MAX))
 2068            .collect()
 2069    }
 2070
 2071    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2072        for pane in &self.panes {
 2073            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2074        }
 2075    }
 2076
 2077    fn navigate_history(
 2078        &mut self,
 2079        pane: WeakEntity<Pane>,
 2080        mode: NavigationMode,
 2081        window: &mut Window,
 2082        cx: &mut Context<Workspace>,
 2083    ) -> Task<Result<()>> {
 2084        self.navigate_history_impl(pane, mode, window, |history, cx| history.pop(mode, cx), cx)
 2085    }
 2086
 2087    fn navigate_tag_history(
 2088        &mut self,
 2089        pane: WeakEntity<Pane>,
 2090        mode: TagNavigationMode,
 2091        window: &mut Window,
 2092        cx: &mut Context<Workspace>,
 2093    ) -> Task<Result<()>> {
 2094        self.navigate_history_impl(
 2095            pane,
 2096            NavigationMode::Normal,
 2097            window,
 2098            |history, _cx| history.pop_tag(mode),
 2099            cx,
 2100        )
 2101    }
 2102
 2103    fn navigate_history_impl(
 2104        &mut self,
 2105        pane: WeakEntity<Pane>,
 2106        mode: NavigationMode,
 2107        window: &mut Window,
 2108        mut cb: impl FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2109        cx: &mut Context<Workspace>,
 2110    ) -> Task<Result<()>> {
 2111        let to_load = if let Some(pane) = pane.upgrade() {
 2112            pane.update(cx, |pane, cx| {
 2113                window.focus(&pane.focus_handle(cx), cx);
 2114                loop {
 2115                    // Retrieve the weak item handle from the history.
 2116                    let entry = cb(pane.nav_history_mut(), cx)?;
 2117
 2118                    // If the item is still present in this pane, then activate it.
 2119                    if let Some(index) = entry
 2120                        .item
 2121                        .upgrade()
 2122                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2123                    {
 2124                        let prev_active_item_index = pane.active_item_index();
 2125                        pane.nav_history_mut().set_mode(mode);
 2126                        pane.activate_item(index, true, true, window, cx);
 2127                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2128
 2129                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2130                        if let Some(data) = entry.data {
 2131                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2132                        }
 2133
 2134                        if navigated {
 2135                            break None;
 2136                        }
 2137                    } else {
 2138                        // If the item is no longer present in this pane, then retrieve its
 2139                        // path info in order to reopen it.
 2140                        break pane
 2141                            .nav_history()
 2142                            .path_for_item(entry.item.id())
 2143                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2144                    }
 2145                }
 2146            })
 2147        } else {
 2148            None
 2149        };
 2150
 2151        if let Some((project_path, abs_path, entry)) = to_load {
 2152            // If the item was no longer present, then load it again from its previous path, first try the local path
 2153            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2154
 2155            cx.spawn_in(window, async move  |workspace, cx| {
 2156                let open_by_project_path = open_by_project_path.await;
 2157                let mut navigated = false;
 2158                match open_by_project_path
 2159                    .with_context(|| format!("Navigating to {project_path:?}"))
 2160                {
 2161                    Ok((project_entry_id, build_item)) => {
 2162                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2163                            pane.nav_history_mut().set_mode(mode);
 2164                            pane.active_item().map(|p| p.item_id())
 2165                        })?;
 2166
 2167                        pane.update_in(cx, |pane, window, cx| {
 2168                            let item = pane.open_item(
 2169                                project_entry_id,
 2170                                project_path,
 2171                                true,
 2172                                entry.is_preview,
 2173                                true,
 2174                                None,
 2175                                window, cx,
 2176                                build_item,
 2177                            );
 2178                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2179                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2180                            if let Some(data) = entry.data {
 2181                                navigated |= item.navigate(data, window, cx);
 2182                            }
 2183                        })?;
 2184                    }
 2185                    Err(open_by_project_path_e) => {
 2186                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2187                        // and its worktree is now dropped
 2188                        if let Some(abs_path) = abs_path {
 2189                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2190                                pane.nav_history_mut().set_mode(mode);
 2191                                pane.active_item().map(|p| p.item_id())
 2192                            })?;
 2193                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2194                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2195                            })?;
 2196                            match open_by_abs_path
 2197                                .await
 2198                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2199                            {
 2200                                Ok(item) => {
 2201                                    pane.update_in(cx, |pane, window, cx| {
 2202                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2203                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2204                                        if let Some(data) = entry.data {
 2205                                            navigated |= item.navigate(data, window, cx);
 2206                                        }
 2207                                    })?;
 2208                                }
 2209                                Err(open_by_abs_path_e) => {
 2210                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2211                                }
 2212                            }
 2213                        }
 2214                    }
 2215                }
 2216
 2217                if !navigated {
 2218                    workspace
 2219                        .update_in(cx, |workspace, window, cx| {
 2220                            Self::navigate_history(workspace, pane, mode, window, cx)
 2221                        })?
 2222                        .await?;
 2223                }
 2224
 2225                Ok(())
 2226            })
 2227        } else {
 2228            Task::ready(Ok(()))
 2229        }
 2230    }
 2231
 2232    pub fn go_back(
 2233        &mut self,
 2234        pane: WeakEntity<Pane>,
 2235        window: &mut Window,
 2236        cx: &mut Context<Workspace>,
 2237    ) -> Task<Result<()>> {
 2238        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2239    }
 2240
 2241    pub fn go_forward(
 2242        &mut self,
 2243        pane: WeakEntity<Pane>,
 2244        window: &mut Window,
 2245        cx: &mut Context<Workspace>,
 2246    ) -> Task<Result<()>> {
 2247        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2248    }
 2249
 2250    pub fn reopen_closed_item(
 2251        &mut self,
 2252        window: &mut Window,
 2253        cx: &mut Context<Workspace>,
 2254    ) -> Task<Result<()>> {
 2255        self.navigate_history(
 2256            self.active_pane().downgrade(),
 2257            NavigationMode::ReopeningClosedItem,
 2258            window,
 2259            cx,
 2260        )
 2261    }
 2262
 2263    pub fn client(&self) -> &Arc<Client> {
 2264        &self.app_state.client
 2265    }
 2266
 2267    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2268        self.titlebar_item = Some(item);
 2269        cx.notify();
 2270    }
 2271
 2272    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2273        self.on_prompt_for_new_path = Some(prompt)
 2274    }
 2275
 2276    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2277        self.on_prompt_for_open_path = Some(prompt)
 2278    }
 2279
 2280    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2281        self.terminal_provider = Some(Box::new(provider));
 2282    }
 2283
 2284    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2285        self.debugger_provider = Some(Arc::new(provider));
 2286    }
 2287
 2288    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2289        self.debugger_provider.clone()
 2290    }
 2291
 2292    pub fn prompt_for_open_path(
 2293        &mut self,
 2294        path_prompt_options: PathPromptOptions,
 2295        lister: DirectoryLister,
 2296        window: &mut Window,
 2297        cx: &mut Context<Self>,
 2298    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2299        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2300            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2301            let rx = prompt(self, lister, window, cx);
 2302            self.on_prompt_for_open_path = Some(prompt);
 2303            rx
 2304        } else {
 2305            let (tx, rx) = oneshot::channel();
 2306            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2307
 2308            cx.spawn_in(window, async move |workspace, cx| {
 2309                let Ok(result) = abs_path.await else {
 2310                    return Ok(());
 2311                };
 2312
 2313                match result {
 2314                    Ok(result) => {
 2315                        tx.send(result).ok();
 2316                    }
 2317                    Err(err) => {
 2318                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2319                            workspace.show_portal_error(err.to_string(), cx);
 2320                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2321                            let rx = prompt(workspace, lister, window, cx);
 2322                            workspace.on_prompt_for_open_path = Some(prompt);
 2323                            rx
 2324                        })?;
 2325                        if let Ok(path) = rx.await {
 2326                            tx.send(path).ok();
 2327                        }
 2328                    }
 2329                };
 2330                anyhow::Ok(())
 2331            })
 2332            .detach();
 2333
 2334            rx
 2335        }
 2336    }
 2337
 2338    pub fn prompt_for_new_path(
 2339        &mut self,
 2340        lister: DirectoryLister,
 2341        suggested_name: Option<String>,
 2342        window: &mut Window,
 2343        cx: &mut Context<Self>,
 2344    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2345        if self.project.read(cx).is_via_collab()
 2346            || self.project.read(cx).is_via_remote_server()
 2347            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2348        {
 2349            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2350            let rx = prompt(self, lister, window, cx);
 2351            self.on_prompt_for_new_path = Some(prompt);
 2352            return rx;
 2353        }
 2354
 2355        let (tx, rx) = oneshot::channel();
 2356        cx.spawn_in(window, async move |workspace, cx| {
 2357            let abs_path = workspace.update(cx, |workspace, cx| {
 2358                let relative_to = workspace
 2359                    .most_recent_active_path(cx)
 2360                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2361                    .or_else(|| {
 2362                        let project = workspace.project.read(cx);
 2363                        project.visible_worktrees(cx).find_map(|worktree| {
 2364                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2365                        })
 2366                    })
 2367                    .or_else(std::env::home_dir)
 2368                    .unwrap_or_else(|| PathBuf::from(""));
 2369                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2370            })?;
 2371            let abs_path = match abs_path.await? {
 2372                Ok(path) => path,
 2373                Err(err) => {
 2374                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2375                        workspace.show_portal_error(err.to_string(), cx);
 2376
 2377                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2378                        let rx = prompt(workspace, lister, window, cx);
 2379                        workspace.on_prompt_for_new_path = Some(prompt);
 2380                        rx
 2381                    })?;
 2382                    if let Ok(path) = rx.await {
 2383                        tx.send(path).ok();
 2384                    }
 2385                    return anyhow::Ok(());
 2386                }
 2387            };
 2388
 2389            tx.send(abs_path.map(|path| vec![path])).ok();
 2390            anyhow::Ok(())
 2391        })
 2392        .detach();
 2393
 2394        rx
 2395    }
 2396
 2397    pub fn titlebar_item(&self) -> Option<AnyView> {
 2398        self.titlebar_item.clone()
 2399    }
 2400
 2401    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2402    /// When set, git-related operations should use this worktree instead of deriving
 2403    /// the active worktree from the focused file.
 2404    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2405        self.active_worktree_override
 2406    }
 2407
 2408    pub fn set_active_worktree_override(
 2409        &mut self,
 2410        worktree_id: Option<WorktreeId>,
 2411        cx: &mut Context<Self>,
 2412    ) {
 2413        self.active_worktree_override = worktree_id;
 2414        cx.notify();
 2415    }
 2416
 2417    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2418        self.active_worktree_override = None;
 2419        cx.notify();
 2420    }
 2421
 2422    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2423    ///
 2424    /// If the given workspace has a local project, then it will be passed
 2425    /// to the callback. Otherwise, a new empty window will be created.
 2426    pub fn with_local_workspace<T, F>(
 2427        &mut self,
 2428        window: &mut Window,
 2429        cx: &mut Context<Self>,
 2430        callback: F,
 2431    ) -> Task<Result<T>>
 2432    where
 2433        T: 'static,
 2434        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2435    {
 2436        if self.project.read(cx).is_local() {
 2437            Task::ready(Ok(callback(self, window, cx)))
 2438        } else {
 2439            let env = self.project.read(cx).cli_environment(cx);
 2440            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2441            cx.spawn_in(window, async move |_vh, cx| {
 2442                let (workspace, _) = task.await?;
 2443                workspace.update(cx, callback)
 2444            })
 2445        }
 2446    }
 2447
 2448    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2449    ///
 2450    /// If the given workspace has a local project, then it will be passed
 2451    /// to the callback. Otherwise, a new empty window will be created.
 2452    pub fn with_local_or_wsl_workspace<T, F>(
 2453        &mut self,
 2454        window: &mut Window,
 2455        cx: &mut Context<Self>,
 2456        callback: F,
 2457    ) -> Task<Result<T>>
 2458    where
 2459        T: 'static,
 2460        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2461    {
 2462        let project = self.project.read(cx);
 2463        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2464            Task::ready(Ok(callback(self, window, cx)))
 2465        } else {
 2466            let env = self.project.read(cx).cli_environment(cx);
 2467            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2468            cx.spawn_in(window, async move |_vh, cx| {
 2469                let (workspace, _) = task.await?;
 2470                workspace.update(cx, callback)
 2471            })
 2472        }
 2473    }
 2474
 2475    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2476        self.project.read(cx).worktrees(cx)
 2477    }
 2478
 2479    pub fn visible_worktrees<'a>(
 2480        &self,
 2481        cx: &'a App,
 2482    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2483        self.project.read(cx).visible_worktrees(cx)
 2484    }
 2485
 2486    #[cfg(any(test, feature = "test-support"))]
 2487    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2488        let futures = self
 2489            .worktrees(cx)
 2490            .filter_map(|worktree| worktree.read(cx).as_local())
 2491            .map(|worktree| worktree.scan_complete())
 2492            .collect::<Vec<_>>();
 2493        async move {
 2494            for future in futures {
 2495                future.await;
 2496            }
 2497        }
 2498    }
 2499
 2500    pub fn close_global(cx: &mut App) {
 2501        cx.defer(|cx| {
 2502            cx.windows().iter().find(|window| {
 2503                window
 2504                    .update(cx, |_, window, _| {
 2505                        if window.is_window_active() {
 2506                            //This can only get called when the window's project connection has been lost
 2507                            //so we don't need to prompt the user for anything and instead just close the window
 2508                            window.remove_window();
 2509                            true
 2510                        } else {
 2511                            false
 2512                        }
 2513                    })
 2514                    .unwrap_or(false)
 2515            });
 2516        });
 2517    }
 2518
 2519    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2520        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2521        cx.spawn_in(window, async move |_, cx| {
 2522            if prepare.await? {
 2523                cx.update(|window, _cx| window.remove_window())?;
 2524            }
 2525            anyhow::Ok(())
 2526        })
 2527        .detach_and_log_err(cx)
 2528    }
 2529
 2530    pub fn move_focused_panel_to_next_position(
 2531        &mut self,
 2532        _: &MoveFocusedPanelToNextPosition,
 2533        window: &mut Window,
 2534        cx: &mut Context<Self>,
 2535    ) {
 2536        let docks = self.all_docks();
 2537        let active_dock = docks
 2538            .into_iter()
 2539            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2540
 2541        if let Some(dock) = active_dock {
 2542            dock.update(cx, |dock, cx| {
 2543                let active_panel = dock
 2544                    .active_panel()
 2545                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2546
 2547                if let Some(panel) = active_panel {
 2548                    panel.move_to_next_position(window, cx);
 2549                }
 2550            })
 2551        }
 2552    }
 2553
 2554    pub fn prepare_to_close(
 2555        &mut self,
 2556        close_intent: CloseIntent,
 2557        window: &mut Window,
 2558        cx: &mut Context<Self>,
 2559    ) -> Task<Result<bool>> {
 2560        let active_call = self.active_call().cloned();
 2561
 2562        cx.spawn_in(window, async move |this, cx| {
 2563            this.update(cx, |this, _| {
 2564                if close_intent == CloseIntent::CloseWindow {
 2565                    this.removing = true;
 2566                }
 2567            })?;
 2568
 2569            let workspace_count = cx.update(|_window, cx| {
 2570                cx.windows()
 2571                    .iter()
 2572                    .filter(|window| window.downcast::<Workspace>().is_some())
 2573                    .count()
 2574            })?;
 2575
 2576            #[cfg(target_os = "macos")]
 2577            let save_last_workspace = false;
 2578
 2579            // On Linux and Windows, closing the last window should restore the last workspace.
 2580            #[cfg(not(target_os = "macos"))]
 2581            let save_last_workspace = {
 2582                let remaining_workspaces = cx.update(|_window, cx| {
 2583                    cx.windows()
 2584                        .iter()
 2585                        .filter_map(|window| window.downcast::<Workspace>())
 2586                        .filter_map(|workspace| {
 2587                            workspace
 2588                                .update(cx, |workspace, _, _| workspace.removing)
 2589                                .ok()
 2590                        })
 2591                        .filter(|removing| !removing)
 2592                        .count()
 2593                })?;
 2594
 2595                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2596            };
 2597
 2598            if let Some(active_call) = active_call
 2599                && workspace_count == 1
 2600                && active_call.read_with(cx, |call, _| call.room().is_some())
 2601            {
 2602                if close_intent == CloseIntent::CloseWindow {
 2603                    let answer = cx.update(|window, cx| {
 2604                        window.prompt(
 2605                            PromptLevel::Warning,
 2606                            "Do you want to leave the current call?",
 2607                            None,
 2608                            &["Close window and hang up", "Cancel"],
 2609                            cx,
 2610                        )
 2611                    })?;
 2612
 2613                    if answer.await.log_err() == Some(1) {
 2614                        return anyhow::Ok(false);
 2615                    } else {
 2616                        active_call
 2617                            .update(cx, |call, cx| call.hang_up(cx))
 2618                            .await
 2619                            .log_err();
 2620                    }
 2621                }
 2622                if close_intent == CloseIntent::ReplaceWindow {
 2623                    _ = active_call.update(cx, |this, cx| {
 2624                        let workspace = cx
 2625                            .windows()
 2626                            .iter()
 2627                            .filter_map(|window| window.downcast::<Workspace>())
 2628                            .next()
 2629                            .unwrap();
 2630                        let project = workspace.read(cx)?.project.clone();
 2631                        if project.read(cx).is_shared() {
 2632                            this.unshare_project(project, cx)?;
 2633                        }
 2634                        Ok::<_, anyhow::Error>(())
 2635                    })?;
 2636                }
 2637            }
 2638
 2639            let save_result = this
 2640                .update_in(cx, |this, window, cx| {
 2641                    this.save_all_internal(SaveIntent::Close, window, cx)
 2642                })?
 2643                .await;
 2644
 2645            // If we're not quitting, but closing, we remove the workspace from
 2646            // the current session.
 2647            if close_intent != CloseIntent::Quit
 2648                && !save_last_workspace
 2649                && save_result.as_ref().is_ok_and(|&res| res)
 2650            {
 2651                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2652                    .await;
 2653            }
 2654
 2655            save_result
 2656        })
 2657    }
 2658
 2659    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2660        self.save_all_internal(
 2661            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2662            window,
 2663            cx,
 2664        )
 2665        .detach_and_log_err(cx);
 2666    }
 2667
 2668    fn send_keystrokes(
 2669        &mut self,
 2670        action: &SendKeystrokes,
 2671        window: &mut Window,
 2672        cx: &mut Context<Self>,
 2673    ) {
 2674        let keystrokes: Vec<Keystroke> = action
 2675            .0
 2676            .split(' ')
 2677            .flat_map(|k| Keystroke::parse(k).log_err())
 2678            .map(|k| {
 2679                cx.keyboard_mapper()
 2680                    .map_key_equivalent(k, true)
 2681                    .inner()
 2682                    .clone()
 2683            })
 2684            .collect();
 2685        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2686    }
 2687
 2688    pub fn send_keystrokes_impl(
 2689        &mut self,
 2690        keystrokes: Vec<Keystroke>,
 2691        window: &mut Window,
 2692        cx: &mut Context<Self>,
 2693    ) -> Shared<Task<()>> {
 2694        let mut state = self.dispatching_keystrokes.borrow_mut();
 2695        if !state.dispatched.insert(keystrokes.clone()) {
 2696            cx.propagate();
 2697            return state.task.clone().unwrap();
 2698        }
 2699
 2700        state.queue.extend(keystrokes);
 2701
 2702        let keystrokes = self.dispatching_keystrokes.clone();
 2703        if state.task.is_none() {
 2704            state.task = Some(
 2705                window
 2706                    .spawn(cx, async move |cx| {
 2707                        // limit to 100 keystrokes to avoid infinite recursion.
 2708                        for _ in 0..100 {
 2709                            let mut state = keystrokes.borrow_mut();
 2710                            let Some(keystroke) = state.queue.pop_front() else {
 2711                                state.dispatched.clear();
 2712                                state.task.take();
 2713                                return;
 2714                            };
 2715                            drop(state);
 2716                            cx.update(|window, cx| {
 2717                                let focused = window.focused(cx);
 2718                                window.dispatch_keystroke(keystroke.clone(), cx);
 2719                                if window.focused(cx) != focused {
 2720                                    // dispatch_keystroke may cause the focus to change.
 2721                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2722                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2723                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2724                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2725                                    // )
 2726                                    window.draw(cx).clear();
 2727                                }
 2728                            })
 2729                            .ok();
 2730                        }
 2731
 2732                        *keystrokes.borrow_mut() = Default::default();
 2733                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2734                    })
 2735                    .shared(),
 2736            );
 2737        }
 2738        state.task.clone().unwrap()
 2739    }
 2740
 2741    fn save_all_internal(
 2742        &mut self,
 2743        mut save_intent: SaveIntent,
 2744        window: &mut Window,
 2745        cx: &mut Context<Self>,
 2746    ) -> Task<Result<bool>> {
 2747        if self.project.read(cx).is_disconnected(cx) {
 2748            return Task::ready(Ok(true));
 2749        }
 2750        let dirty_items = self
 2751            .panes
 2752            .iter()
 2753            .flat_map(|pane| {
 2754                pane.read(cx).items().filter_map(|item| {
 2755                    if item.is_dirty(cx) {
 2756                        item.tab_content_text(0, cx);
 2757                        Some((pane.downgrade(), item.boxed_clone()))
 2758                    } else {
 2759                        None
 2760                    }
 2761                })
 2762            })
 2763            .collect::<Vec<_>>();
 2764
 2765        let project = self.project.clone();
 2766        cx.spawn_in(window, async move |workspace, cx| {
 2767            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2768                let (serialize_tasks, remaining_dirty_items) =
 2769                    workspace.update_in(cx, |workspace, window, cx| {
 2770                        let mut remaining_dirty_items = Vec::new();
 2771                        let mut serialize_tasks = Vec::new();
 2772                        for (pane, item) in dirty_items {
 2773                            if let Some(task) = item
 2774                                .to_serializable_item_handle(cx)
 2775                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2776                            {
 2777                                serialize_tasks.push(task);
 2778                            } else {
 2779                                remaining_dirty_items.push((pane, item));
 2780                            }
 2781                        }
 2782                        (serialize_tasks, remaining_dirty_items)
 2783                    })?;
 2784
 2785                futures::future::try_join_all(serialize_tasks).await?;
 2786
 2787                if remaining_dirty_items.len() > 1 {
 2788                    let answer = workspace.update_in(cx, |_, window, cx| {
 2789                        let detail = Pane::file_names_for_prompt(
 2790                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2791                            cx,
 2792                        );
 2793                        window.prompt(
 2794                            PromptLevel::Warning,
 2795                            "Do you want to save all changes in the following files?",
 2796                            Some(&detail),
 2797                            &["Save all", "Discard all", "Cancel"],
 2798                            cx,
 2799                        )
 2800                    })?;
 2801                    match answer.await.log_err() {
 2802                        Some(0) => save_intent = SaveIntent::SaveAll,
 2803                        Some(1) => save_intent = SaveIntent::Skip,
 2804                        Some(2) => return Ok(false),
 2805                        _ => {}
 2806                    }
 2807                }
 2808
 2809                remaining_dirty_items
 2810            } else {
 2811                dirty_items
 2812            };
 2813
 2814            for (pane, item) in dirty_items {
 2815                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2816                    (
 2817                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2818                        item.project_entry_ids(cx),
 2819                    )
 2820                })?;
 2821                if (singleton || !project_entry_ids.is_empty())
 2822                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2823                {
 2824                    return Ok(false);
 2825                }
 2826            }
 2827            Ok(true)
 2828        })
 2829    }
 2830
 2831    pub fn open_workspace_for_paths(
 2832        &mut self,
 2833        replace_current_window: bool,
 2834        paths: Vec<PathBuf>,
 2835        window: &mut Window,
 2836        cx: &mut Context<Self>,
 2837    ) -> Task<Result<()>> {
 2838        let window_handle = window.window_handle().downcast::<Self>();
 2839        let is_remote = self.project.read(cx).is_via_collab();
 2840        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2841        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2842
 2843        let window_to_replace = if replace_current_window {
 2844            window_handle
 2845        } else if is_remote || has_worktree || has_dirty_items {
 2846            None
 2847        } else {
 2848            window_handle
 2849        };
 2850        let app_state = self.app_state.clone();
 2851
 2852        cx.spawn(async move |_, cx| {
 2853            cx.update(|cx| {
 2854                open_paths(
 2855                    &paths,
 2856                    app_state,
 2857                    OpenOptions {
 2858                        replace_window: window_to_replace,
 2859                        ..Default::default()
 2860                    },
 2861                    cx,
 2862                )
 2863            })
 2864            .await?;
 2865            Ok(())
 2866        })
 2867    }
 2868
 2869    #[allow(clippy::type_complexity)]
 2870    pub fn open_paths(
 2871        &mut self,
 2872        mut abs_paths: Vec<PathBuf>,
 2873        options: OpenOptions,
 2874        pane: Option<WeakEntity<Pane>>,
 2875        window: &mut Window,
 2876        cx: &mut Context<Self>,
 2877    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2878        let fs = self.app_state.fs.clone();
 2879
 2880        let caller_ordered_abs_paths = abs_paths.clone();
 2881
 2882        // Sort the paths to ensure we add worktrees for parents before their children.
 2883        abs_paths.sort_unstable();
 2884        cx.spawn_in(window, async move |this, cx| {
 2885            let mut tasks = Vec::with_capacity(abs_paths.len());
 2886
 2887            for abs_path in &abs_paths {
 2888                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2889                    OpenVisible::All => Some(true),
 2890                    OpenVisible::None => Some(false),
 2891                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2892                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2893                        Some(None) => Some(true),
 2894                        None => None,
 2895                    },
 2896                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2897                        Some(Some(metadata)) => Some(metadata.is_dir),
 2898                        Some(None) => Some(false),
 2899                        None => None,
 2900                    },
 2901                };
 2902                let project_path = match visible {
 2903                    Some(visible) => match this
 2904                        .update(cx, |this, cx| {
 2905                            Workspace::project_path_for_path(
 2906                                this.project.clone(),
 2907                                abs_path,
 2908                                visible,
 2909                                cx,
 2910                            )
 2911                        })
 2912                        .log_err()
 2913                    {
 2914                        Some(project_path) => project_path.await.log_err(),
 2915                        None => None,
 2916                    },
 2917                    None => None,
 2918                };
 2919
 2920                let this = this.clone();
 2921                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2922                let fs = fs.clone();
 2923                let pane = pane.clone();
 2924                let task = cx.spawn(async move |cx| {
 2925                    let (_worktree, project_path) = project_path?;
 2926                    if fs.is_dir(&abs_path).await {
 2927                        // Opening a directory should not race to update the active entry.
 2928                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 2929                        None
 2930                    } else {
 2931                        Some(
 2932                            this.update_in(cx, |this, window, cx| {
 2933                                this.open_path(
 2934                                    project_path,
 2935                                    pane,
 2936                                    options.focus.unwrap_or(true),
 2937                                    window,
 2938                                    cx,
 2939                                )
 2940                            })
 2941                            .ok()?
 2942                            .await,
 2943                        )
 2944                    }
 2945                });
 2946                tasks.push(task);
 2947            }
 2948
 2949            let results = futures::future::join_all(tasks).await;
 2950
 2951            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 2952            let mut winner: Option<(PathBuf, bool)> = None;
 2953            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 2954                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 2955                    if !metadata.is_dir {
 2956                        winner = Some((abs_path, false));
 2957                        break;
 2958                    }
 2959                    if winner.is_none() {
 2960                        winner = Some((abs_path, true));
 2961                    }
 2962                } else if winner.is_none() {
 2963                    winner = Some((abs_path, false));
 2964                }
 2965            }
 2966
 2967            // Compute the winner entry id on the foreground thread and emit once, after all
 2968            // paths finish opening. This avoids races between concurrently-opening paths
 2969            // (directories in particular) and makes the resulting project panel selection
 2970            // deterministic.
 2971            if let Some((winner_abs_path, winner_is_dir)) = winner {
 2972                'emit_winner: {
 2973                    let winner_abs_path: Arc<Path> =
 2974                        SanitizedPath::new(&winner_abs_path).as_path().into();
 2975
 2976                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2977                        OpenVisible::All => true,
 2978                        OpenVisible::None => false,
 2979                        OpenVisible::OnlyFiles => !winner_is_dir,
 2980                        OpenVisible::OnlyDirectories => winner_is_dir,
 2981                    };
 2982
 2983                    let Some(worktree_task) = this
 2984                        .update(cx, |workspace, cx| {
 2985                            workspace.project.update(cx, |project, cx| {
 2986                                project.find_or_create_worktree(
 2987                                    winner_abs_path.as_ref(),
 2988                                    visible,
 2989                                    cx,
 2990                                )
 2991                            })
 2992                        })
 2993                        .ok()
 2994                    else {
 2995                        break 'emit_winner;
 2996                    };
 2997
 2998                    let Ok((worktree, _)) = worktree_task.await else {
 2999                        break 'emit_winner;
 3000                    };
 3001
 3002                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3003                        let worktree = worktree.read(cx);
 3004                        let worktree_abs_path = worktree.abs_path();
 3005                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3006                            worktree.root_entry()
 3007                        } else {
 3008                            winner_abs_path
 3009                                .strip_prefix(worktree_abs_path.as_ref())
 3010                                .ok()
 3011                                .and_then(|relative_path| {
 3012                                    let relative_path =
 3013                                        RelPath::new(relative_path, PathStyle::local())
 3014                                            .log_err()?;
 3015                                    worktree.entry_for_path(&relative_path)
 3016                                })
 3017                        }?;
 3018                        Some(entry.id)
 3019                    }) else {
 3020                        break 'emit_winner;
 3021                    };
 3022
 3023                    this.update(cx, |workspace, cx| {
 3024                        workspace.project.update(cx, |_, cx| {
 3025                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3026                        });
 3027                    })
 3028                    .ok();
 3029                }
 3030            }
 3031
 3032            results
 3033        })
 3034    }
 3035
 3036    pub fn open_resolved_path(
 3037        &mut self,
 3038        path: ResolvedPath,
 3039        window: &mut Window,
 3040        cx: &mut Context<Self>,
 3041    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3042        match path {
 3043            ResolvedPath::ProjectPath { project_path, .. } => {
 3044                self.open_path(project_path, None, true, window, cx)
 3045            }
 3046            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3047                PathBuf::from(path),
 3048                OpenOptions {
 3049                    visible: Some(OpenVisible::None),
 3050                    ..Default::default()
 3051                },
 3052                window,
 3053                cx,
 3054            ),
 3055        }
 3056    }
 3057
 3058    pub fn absolute_path_of_worktree(
 3059        &self,
 3060        worktree_id: WorktreeId,
 3061        cx: &mut Context<Self>,
 3062    ) -> Option<PathBuf> {
 3063        self.project
 3064            .read(cx)
 3065            .worktree_for_id(worktree_id, cx)
 3066            // TODO: use `abs_path` or `root_dir`
 3067            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3068    }
 3069
 3070    fn add_folder_to_project(
 3071        &mut self,
 3072        _: &AddFolderToProject,
 3073        window: &mut Window,
 3074        cx: &mut Context<Self>,
 3075    ) {
 3076        let project = self.project.read(cx);
 3077        if project.is_via_collab() {
 3078            self.show_error(
 3079                &anyhow!("You cannot add folders to someone else's project"),
 3080                cx,
 3081            );
 3082            return;
 3083        }
 3084        let paths = self.prompt_for_open_path(
 3085            PathPromptOptions {
 3086                files: false,
 3087                directories: true,
 3088                multiple: true,
 3089                prompt: None,
 3090            },
 3091            DirectoryLister::Project(self.project.clone()),
 3092            window,
 3093            cx,
 3094        );
 3095        cx.spawn_in(window, async move |this, cx| {
 3096            if let Some(paths) = paths.await.log_err().flatten() {
 3097                let results = this
 3098                    .update_in(cx, |this, window, cx| {
 3099                        this.open_paths(
 3100                            paths,
 3101                            OpenOptions {
 3102                                visible: Some(OpenVisible::All),
 3103                                ..Default::default()
 3104                            },
 3105                            None,
 3106                            window,
 3107                            cx,
 3108                        )
 3109                    })?
 3110                    .await;
 3111                for result in results.into_iter().flatten() {
 3112                    result.log_err();
 3113                }
 3114            }
 3115            anyhow::Ok(())
 3116        })
 3117        .detach_and_log_err(cx);
 3118    }
 3119
 3120    pub fn project_path_for_path(
 3121        project: Entity<Project>,
 3122        abs_path: &Path,
 3123        visible: bool,
 3124        cx: &mut App,
 3125    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3126        let entry = project.update(cx, |project, cx| {
 3127            project.find_or_create_worktree(abs_path, visible, cx)
 3128        });
 3129        cx.spawn(async move |cx| {
 3130            let (worktree, path) = entry.await?;
 3131            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3132            Ok((worktree, ProjectPath { worktree_id, path }))
 3133        })
 3134    }
 3135
 3136    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3137        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3138    }
 3139
 3140    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3141        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3142    }
 3143
 3144    pub fn items_of_type<'a, T: Item>(
 3145        &'a self,
 3146        cx: &'a App,
 3147    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3148        self.panes
 3149            .iter()
 3150            .flat_map(|pane| pane.read(cx).items_of_type())
 3151    }
 3152
 3153    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3154        self.active_pane().read(cx).active_item()
 3155    }
 3156
 3157    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3158        let item = self.active_item(cx)?;
 3159        item.to_any_view().downcast::<I>().ok()
 3160    }
 3161
 3162    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3163        self.active_item(cx).and_then(|item| item.project_path(cx))
 3164    }
 3165
 3166    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3167        self.recent_navigation_history_iter(cx)
 3168            .filter_map(|(path, abs_path)| {
 3169                let worktree = self
 3170                    .project
 3171                    .read(cx)
 3172                    .worktree_for_id(path.worktree_id, cx)?;
 3173                if worktree.read(cx).is_visible() {
 3174                    abs_path
 3175                } else {
 3176                    None
 3177                }
 3178            })
 3179            .next()
 3180    }
 3181
 3182    pub fn save_active_item(
 3183        &mut self,
 3184        save_intent: SaveIntent,
 3185        window: &mut Window,
 3186        cx: &mut App,
 3187    ) -> Task<Result<()>> {
 3188        let project = self.project.clone();
 3189        let pane = self.active_pane();
 3190        let item = pane.read(cx).active_item();
 3191        let pane = pane.downgrade();
 3192
 3193        window.spawn(cx, async move |cx| {
 3194            if let Some(item) = item {
 3195                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3196                    .await
 3197                    .map(|_| ())
 3198            } else {
 3199                Ok(())
 3200            }
 3201        })
 3202    }
 3203
 3204    pub fn close_inactive_items_and_panes(
 3205        &mut self,
 3206        action: &CloseInactiveTabsAndPanes,
 3207        window: &mut Window,
 3208        cx: &mut Context<Self>,
 3209    ) {
 3210        if let Some(task) = self.close_all_internal(
 3211            true,
 3212            action.save_intent.unwrap_or(SaveIntent::Close),
 3213            window,
 3214            cx,
 3215        ) {
 3216            task.detach_and_log_err(cx)
 3217        }
 3218    }
 3219
 3220    pub fn close_all_items_and_panes(
 3221        &mut self,
 3222        action: &CloseAllItemsAndPanes,
 3223        window: &mut Window,
 3224        cx: &mut Context<Self>,
 3225    ) {
 3226        if let Some(task) = self.close_all_internal(
 3227            false,
 3228            action.save_intent.unwrap_or(SaveIntent::Close),
 3229            window,
 3230            cx,
 3231        ) {
 3232            task.detach_and_log_err(cx)
 3233        }
 3234    }
 3235
 3236    fn close_all_internal(
 3237        &mut self,
 3238        retain_active_pane: bool,
 3239        save_intent: SaveIntent,
 3240        window: &mut Window,
 3241        cx: &mut Context<Self>,
 3242    ) -> Option<Task<Result<()>>> {
 3243        let current_pane = self.active_pane();
 3244
 3245        let mut tasks = Vec::new();
 3246
 3247        if retain_active_pane {
 3248            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3249                pane.close_other_items(
 3250                    &CloseOtherItems {
 3251                        save_intent: None,
 3252                        close_pinned: false,
 3253                    },
 3254                    None,
 3255                    window,
 3256                    cx,
 3257                )
 3258            });
 3259
 3260            tasks.push(current_pane_close);
 3261        }
 3262
 3263        for pane in self.panes() {
 3264            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3265                continue;
 3266            }
 3267
 3268            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3269                pane.close_all_items(
 3270                    &CloseAllItems {
 3271                        save_intent: Some(save_intent),
 3272                        close_pinned: false,
 3273                    },
 3274                    window,
 3275                    cx,
 3276                )
 3277            });
 3278
 3279            tasks.push(close_pane_items)
 3280        }
 3281
 3282        if tasks.is_empty() {
 3283            None
 3284        } else {
 3285            Some(cx.spawn_in(window, async move |_, _| {
 3286                for task in tasks {
 3287                    task.await?
 3288                }
 3289                Ok(())
 3290            }))
 3291        }
 3292    }
 3293
 3294    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3295        self.dock_at_position(position).read(cx).is_open()
 3296    }
 3297
 3298    pub fn toggle_dock(
 3299        &mut self,
 3300        dock_side: DockPosition,
 3301        window: &mut Window,
 3302        cx: &mut Context<Self>,
 3303    ) {
 3304        let mut focus_center = false;
 3305        let mut reveal_dock = false;
 3306
 3307        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3308        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3309
 3310        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3311            telemetry::event!(
 3312                "Panel Button Clicked",
 3313                name = panel.persistent_name(),
 3314                toggle_state = !was_visible
 3315            );
 3316        }
 3317        if was_visible {
 3318            self.save_open_dock_positions(cx);
 3319        }
 3320
 3321        let dock = self.dock_at_position(dock_side);
 3322        dock.update(cx, |dock, cx| {
 3323            dock.set_open(!was_visible, window, cx);
 3324
 3325            if dock.active_panel().is_none() {
 3326                let Some(panel_ix) = dock
 3327                    .first_enabled_panel_idx(cx)
 3328                    .log_with_level(log::Level::Info)
 3329                else {
 3330                    return;
 3331                };
 3332                dock.activate_panel(panel_ix, window, cx);
 3333            }
 3334
 3335            if let Some(active_panel) = dock.active_panel() {
 3336                if was_visible {
 3337                    if active_panel
 3338                        .panel_focus_handle(cx)
 3339                        .contains_focused(window, cx)
 3340                    {
 3341                        focus_center = true;
 3342                    }
 3343                } else {
 3344                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3345                    window.focus(focus_handle, cx);
 3346                    reveal_dock = true;
 3347                }
 3348            }
 3349        });
 3350
 3351        if reveal_dock {
 3352            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3353        }
 3354
 3355        if focus_center {
 3356            self.active_pane
 3357                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3358        }
 3359
 3360        cx.notify();
 3361        self.serialize_workspace(window, cx);
 3362    }
 3363
 3364    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3365        self.all_docks().into_iter().find(|&dock| {
 3366            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3367        })
 3368    }
 3369
 3370    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3371        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3372            self.save_open_dock_positions(cx);
 3373            dock.update(cx, |dock, cx| {
 3374                dock.set_open(false, window, cx);
 3375            });
 3376            return true;
 3377        }
 3378        false
 3379    }
 3380
 3381    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3382        self.save_open_dock_positions(cx);
 3383        for dock in self.all_docks() {
 3384            dock.update(cx, |dock, cx| {
 3385                dock.set_open(false, window, cx);
 3386            });
 3387        }
 3388
 3389        cx.focus_self(window);
 3390        cx.notify();
 3391        self.serialize_workspace(window, cx);
 3392    }
 3393
 3394    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3395        self.all_docks()
 3396            .into_iter()
 3397            .filter_map(|dock| {
 3398                let dock_ref = dock.read(cx);
 3399                if dock_ref.is_open() {
 3400                    Some(dock_ref.position())
 3401                } else {
 3402                    None
 3403                }
 3404            })
 3405            .collect()
 3406    }
 3407
 3408    /// Saves the positions of currently open docks.
 3409    ///
 3410    /// Updates `last_open_dock_positions` with positions of all currently open
 3411    /// docks, to later be restored by the 'Toggle All Docks' action.
 3412    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3413        let open_dock_positions = self.get_open_dock_positions(cx);
 3414        if !open_dock_positions.is_empty() {
 3415            self.last_open_dock_positions = open_dock_positions;
 3416        }
 3417    }
 3418
 3419    /// Toggles all docks between open and closed states.
 3420    ///
 3421    /// If any docks are open, closes all and remembers their positions. If all
 3422    /// docks are closed, restores the last remembered dock configuration.
 3423    fn toggle_all_docks(
 3424        &mut self,
 3425        _: &ToggleAllDocks,
 3426        window: &mut Window,
 3427        cx: &mut Context<Self>,
 3428    ) {
 3429        let open_dock_positions = self.get_open_dock_positions(cx);
 3430
 3431        if !open_dock_positions.is_empty() {
 3432            self.close_all_docks(window, cx);
 3433        } else if !self.last_open_dock_positions.is_empty() {
 3434            self.restore_last_open_docks(window, cx);
 3435        }
 3436    }
 3437
 3438    /// Reopens docks from the most recently remembered configuration.
 3439    ///
 3440    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3441    /// and clears the stored positions.
 3442    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3443        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3444
 3445        for position in positions_to_open {
 3446            let dock = self.dock_at_position(position);
 3447            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3448        }
 3449
 3450        cx.focus_self(window);
 3451        cx.notify();
 3452        self.serialize_workspace(window, cx);
 3453    }
 3454
 3455    /// Transfer focus to the panel of the given type.
 3456    pub fn focus_panel<T: Panel>(
 3457        &mut self,
 3458        window: &mut Window,
 3459        cx: &mut Context<Self>,
 3460    ) -> Option<Entity<T>> {
 3461        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3462        panel.to_any().downcast().ok()
 3463    }
 3464
 3465    /// Focus the panel of the given type if it isn't already focused. If it is
 3466    /// already focused, then transfer focus back to the workspace center.
 3467    pub fn toggle_panel_focus<T: Panel>(
 3468        &mut self,
 3469        window: &mut Window,
 3470        cx: &mut Context<Self>,
 3471    ) -> bool {
 3472        let mut did_focus_panel = false;
 3473        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3474            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3475            did_focus_panel
 3476        });
 3477
 3478        telemetry::event!(
 3479            "Panel Button Clicked",
 3480            name = T::persistent_name(),
 3481            toggle_state = did_focus_panel
 3482        );
 3483
 3484        did_focus_panel
 3485    }
 3486
 3487    pub fn activate_panel_for_proto_id(
 3488        &mut self,
 3489        panel_id: PanelId,
 3490        window: &mut Window,
 3491        cx: &mut Context<Self>,
 3492    ) -> Option<Arc<dyn PanelHandle>> {
 3493        let mut panel = None;
 3494        for dock in self.all_docks() {
 3495            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3496                panel = dock.update(cx, |dock, cx| {
 3497                    dock.activate_panel(panel_index, window, cx);
 3498                    dock.set_open(true, window, cx);
 3499                    dock.active_panel().cloned()
 3500                });
 3501                break;
 3502            }
 3503        }
 3504
 3505        if panel.is_some() {
 3506            cx.notify();
 3507            self.serialize_workspace(window, cx);
 3508        }
 3509
 3510        panel
 3511    }
 3512
 3513    /// Focus or unfocus the given panel type, depending on the given callback.
 3514    fn focus_or_unfocus_panel<T: Panel>(
 3515        &mut self,
 3516        window: &mut Window,
 3517        cx: &mut Context<Self>,
 3518        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3519    ) -> Option<Arc<dyn PanelHandle>> {
 3520        let mut result_panel = None;
 3521        let mut serialize = false;
 3522        for dock in self.all_docks() {
 3523            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3524                let mut focus_center = false;
 3525                let panel = dock.update(cx, |dock, cx| {
 3526                    dock.activate_panel(panel_index, window, cx);
 3527
 3528                    let panel = dock.active_panel().cloned();
 3529                    if let Some(panel) = panel.as_ref() {
 3530                        if should_focus(&**panel, window, cx) {
 3531                            dock.set_open(true, window, cx);
 3532                            panel.panel_focus_handle(cx).focus(window, cx);
 3533                        } else {
 3534                            focus_center = true;
 3535                        }
 3536                    }
 3537                    panel
 3538                });
 3539
 3540                if focus_center {
 3541                    self.active_pane
 3542                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3543                }
 3544
 3545                result_panel = panel;
 3546                serialize = true;
 3547                break;
 3548            }
 3549        }
 3550
 3551        if serialize {
 3552            self.serialize_workspace(window, cx);
 3553        }
 3554
 3555        cx.notify();
 3556        result_panel
 3557    }
 3558
 3559    /// Open the panel of the given type
 3560    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3561        for dock in self.all_docks() {
 3562            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3563                dock.update(cx, |dock, cx| {
 3564                    dock.activate_panel(panel_index, window, cx);
 3565                    dock.set_open(true, window, cx);
 3566                });
 3567            }
 3568        }
 3569    }
 3570
 3571    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3572        for dock in self.all_docks().iter() {
 3573            dock.update(cx, |dock, cx| {
 3574                if dock.panel::<T>().is_some() {
 3575                    dock.set_open(false, window, cx)
 3576                }
 3577            })
 3578        }
 3579    }
 3580
 3581    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3582        self.all_docks()
 3583            .iter()
 3584            .find_map(|dock| dock.read(cx).panel::<T>())
 3585    }
 3586
 3587    fn dismiss_zoomed_items_to_reveal(
 3588        &mut self,
 3589        dock_to_reveal: Option<DockPosition>,
 3590        window: &mut Window,
 3591        cx: &mut Context<Self>,
 3592    ) {
 3593        // If a center pane is zoomed, unzoom it.
 3594        for pane in &self.panes {
 3595            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3596                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3597            }
 3598        }
 3599
 3600        // If another dock is zoomed, hide it.
 3601        let mut focus_center = false;
 3602        for dock in self.all_docks() {
 3603            dock.update(cx, |dock, cx| {
 3604                if Some(dock.position()) != dock_to_reveal
 3605                    && let Some(panel) = dock.active_panel()
 3606                    && panel.is_zoomed(window, cx)
 3607                {
 3608                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3609                    dock.set_open(false, window, cx);
 3610                }
 3611            });
 3612        }
 3613
 3614        if focus_center {
 3615            self.active_pane
 3616                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3617        }
 3618
 3619        if self.zoomed_position != dock_to_reveal {
 3620            self.zoomed = None;
 3621            self.zoomed_position = None;
 3622            cx.emit(Event::ZoomChanged);
 3623        }
 3624
 3625        cx.notify();
 3626    }
 3627
 3628    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3629        let pane = cx.new(|cx| {
 3630            let mut pane = Pane::new(
 3631                self.weak_handle(),
 3632                self.project.clone(),
 3633                self.pane_history_timestamp.clone(),
 3634                None,
 3635                NewFile.boxed_clone(),
 3636                true,
 3637                window,
 3638                cx,
 3639            );
 3640            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3641            pane
 3642        });
 3643        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3644            .detach();
 3645        self.panes.push(pane.clone());
 3646
 3647        window.focus(&pane.focus_handle(cx), cx);
 3648
 3649        cx.emit(Event::PaneAdded(pane.clone()));
 3650        pane
 3651    }
 3652
 3653    pub fn add_item_to_center(
 3654        &mut self,
 3655        item: Box<dyn ItemHandle>,
 3656        window: &mut Window,
 3657        cx: &mut Context<Self>,
 3658    ) -> bool {
 3659        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3660            if let Some(center_pane) = center_pane.upgrade() {
 3661                center_pane.update(cx, |pane, cx| {
 3662                    pane.add_item(item, true, true, None, window, cx)
 3663                });
 3664                true
 3665            } else {
 3666                false
 3667            }
 3668        } else {
 3669            false
 3670        }
 3671    }
 3672
 3673    pub fn add_item_to_active_pane(
 3674        &mut self,
 3675        item: Box<dyn ItemHandle>,
 3676        destination_index: Option<usize>,
 3677        focus_item: bool,
 3678        window: &mut Window,
 3679        cx: &mut App,
 3680    ) {
 3681        self.add_item(
 3682            self.active_pane.clone(),
 3683            item,
 3684            destination_index,
 3685            false,
 3686            focus_item,
 3687            window,
 3688            cx,
 3689        )
 3690    }
 3691
 3692    pub fn add_item(
 3693        &mut self,
 3694        pane: Entity<Pane>,
 3695        item: Box<dyn ItemHandle>,
 3696        destination_index: Option<usize>,
 3697        activate_pane: bool,
 3698        focus_item: bool,
 3699        window: &mut Window,
 3700        cx: &mut App,
 3701    ) {
 3702        pane.update(cx, |pane, cx| {
 3703            pane.add_item(
 3704                item,
 3705                activate_pane,
 3706                focus_item,
 3707                destination_index,
 3708                window,
 3709                cx,
 3710            )
 3711        });
 3712    }
 3713
 3714    pub fn split_item(
 3715        &mut self,
 3716        split_direction: SplitDirection,
 3717        item: Box<dyn ItemHandle>,
 3718        window: &mut Window,
 3719        cx: &mut Context<Self>,
 3720    ) {
 3721        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3722        self.add_item(new_pane, item, None, true, true, window, cx);
 3723    }
 3724
 3725    pub fn open_abs_path(
 3726        &mut self,
 3727        abs_path: PathBuf,
 3728        options: OpenOptions,
 3729        window: &mut Window,
 3730        cx: &mut Context<Self>,
 3731    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3732        cx.spawn_in(window, async move |workspace, cx| {
 3733            let open_paths_task_result = workspace
 3734                .update_in(cx, |workspace, window, cx| {
 3735                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3736                })
 3737                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3738                .await;
 3739            anyhow::ensure!(
 3740                open_paths_task_result.len() == 1,
 3741                "open abs path {abs_path:?} task returned incorrect number of results"
 3742            );
 3743            match open_paths_task_result
 3744                .into_iter()
 3745                .next()
 3746                .expect("ensured single task result")
 3747            {
 3748                Some(open_result) => {
 3749                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3750                }
 3751                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3752            }
 3753        })
 3754    }
 3755
 3756    pub fn split_abs_path(
 3757        &mut self,
 3758        abs_path: PathBuf,
 3759        visible: bool,
 3760        window: &mut Window,
 3761        cx: &mut Context<Self>,
 3762    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3763        let project_path_task =
 3764            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3765        cx.spawn_in(window, async move |this, cx| {
 3766            let (_, path) = project_path_task.await?;
 3767            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3768                .await
 3769        })
 3770    }
 3771
 3772    pub fn open_path(
 3773        &mut self,
 3774        path: impl Into<ProjectPath>,
 3775        pane: Option<WeakEntity<Pane>>,
 3776        focus_item: bool,
 3777        window: &mut Window,
 3778        cx: &mut App,
 3779    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3780        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3781    }
 3782
 3783    pub fn open_path_preview(
 3784        &mut self,
 3785        path: impl Into<ProjectPath>,
 3786        pane: Option<WeakEntity<Pane>>,
 3787        focus_item: bool,
 3788        allow_preview: bool,
 3789        activate: bool,
 3790        window: &mut Window,
 3791        cx: &mut App,
 3792    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3793        let pane = pane.unwrap_or_else(|| {
 3794            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3795                self.panes
 3796                    .first()
 3797                    .expect("There must be an active pane")
 3798                    .downgrade()
 3799            })
 3800        });
 3801
 3802        let project_path = path.into();
 3803        let task = self.load_path(project_path.clone(), window, cx);
 3804        window.spawn(cx, async move |cx| {
 3805            let (project_entry_id, build_item) = task.await?;
 3806
 3807            pane.update_in(cx, |pane, window, cx| {
 3808                pane.open_item(
 3809                    project_entry_id,
 3810                    project_path,
 3811                    focus_item,
 3812                    allow_preview,
 3813                    activate,
 3814                    None,
 3815                    window,
 3816                    cx,
 3817                    build_item,
 3818                )
 3819            })
 3820        })
 3821    }
 3822
 3823    pub fn split_path(
 3824        &mut self,
 3825        path: impl Into<ProjectPath>,
 3826        window: &mut Window,
 3827        cx: &mut Context<Self>,
 3828    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3829        self.split_path_preview(path, false, None, window, cx)
 3830    }
 3831
 3832    pub fn split_path_preview(
 3833        &mut self,
 3834        path: impl Into<ProjectPath>,
 3835        allow_preview: bool,
 3836        split_direction: Option<SplitDirection>,
 3837        window: &mut Window,
 3838        cx: &mut Context<Self>,
 3839    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3840        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3841            self.panes
 3842                .first()
 3843                .expect("There must be an active pane")
 3844                .downgrade()
 3845        });
 3846
 3847        if let Member::Pane(center_pane) = &self.center.root
 3848            && center_pane.read(cx).items_len() == 0
 3849        {
 3850            return self.open_path(path, Some(pane), true, window, cx);
 3851        }
 3852
 3853        let project_path = path.into();
 3854        let task = self.load_path(project_path.clone(), window, cx);
 3855        cx.spawn_in(window, async move |this, cx| {
 3856            let (project_entry_id, build_item) = task.await?;
 3857            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3858                let pane = pane.upgrade()?;
 3859                let new_pane = this.split_pane(
 3860                    pane,
 3861                    split_direction.unwrap_or(SplitDirection::Right),
 3862                    window,
 3863                    cx,
 3864                );
 3865                new_pane.update(cx, |new_pane, cx| {
 3866                    Some(new_pane.open_item(
 3867                        project_entry_id,
 3868                        project_path,
 3869                        true,
 3870                        allow_preview,
 3871                        true,
 3872                        None,
 3873                        window,
 3874                        cx,
 3875                        build_item,
 3876                    ))
 3877                })
 3878            })
 3879            .map(|option| option.context("pane was dropped"))?
 3880        })
 3881    }
 3882
 3883    fn load_path(
 3884        &mut self,
 3885        path: ProjectPath,
 3886        window: &mut Window,
 3887        cx: &mut App,
 3888    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3889        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3890        registry.open_path(self.project(), &path, window, cx)
 3891    }
 3892
 3893    pub fn find_project_item<T>(
 3894        &self,
 3895        pane: &Entity<Pane>,
 3896        project_item: &Entity<T::Item>,
 3897        cx: &App,
 3898    ) -> Option<Entity<T>>
 3899    where
 3900        T: ProjectItem,
 3901    {
 3902        use project::ProjectItem as _;
 3903        let project_item = project_item.read(cx);
 3904        let entry_id = project_item.entry_id(cx);
 3905        let project_path = project_item.project_path(cx);
 3906
 3907        let mut item = None;
 3908        if let Some(entry_id) = entry_id {
 3909            item = pane.read(cx).item_for_entry(entry_id, cx);
 3910        }
 3911        if item.is_none()
 3912            && let Some(project_path) = project_path
 3913        {
 3914            item = pane.read(cx).item_for_path(project_path, cx);
 3915        }
 3916
 3917        item.and_then(|item| item.downcast::<T>())
 3918    }
 3919
 3920    pub fn is_project_item_open<T>(
 3921        &self,
 3922        pane: &Entity<Pane>,
 3923        project_item: &Entity<T::Item>,
 3924        cx: &App,
 3925    ) -> bool
 3926    where
 3927        T: ProjectItem,
 3928    {
 3929        self.find_project_item::<T>(pane, project_item, cx)
 3930            .is_some()
 3931    }
 3932
 3933    pub fn open_project_item<T>(
 3934        &mut self,
 3935        pane: Entity<Pane>,
 3936        project_item: Entity<T::Item>,
 3937        activate_pane: bool,
 3938        focus_item: bool,
 3939        keep_old_preview: bool,
 3940        allow_new_preview: bool,
 3941        window: &mut Window,
 3942        cx: &mut Context<Self>,
 3943    ) -> Entity<T>
 3944    where
 3945        T: ProjectItem,
 3946    {
 3947        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3948
 3949        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3950            if !keep_old_preview
 3951                && let Some(old_id) = old_item_id
 3952                && old_id != item.item_id()
 3953            {
 3954                // switching to a different item, so unpreview old active item
 3955                pane.update(cx, |pane, _| {
 3956                    pane.unpreview_item_if_preview(old_id);
 3957                });
 3958            }
 3959
 3960            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3961            if !allow_new_preview {
 3962                pane.update(cx, |pane, _| {
 3963                    pane.unpreview_item_if_preview(item.item_id());
 3964                });
 3965            }
 3966            return item;
 3967        }
 3968
 3969        let item = pane.update(cx, |pane, cx| {
 3970            cx.new(|cx| {
 3971                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3972            })
 3973        });
 3974        let mut destination_index = None;
 3975        pane.update(cx, |pane, cx| {
 3976            if !keep_old_preview && let Some(old_id) = old_item_id {
 3977                pane.unpreview_item_if_preview(old_id);
 3978            }
 3979            if allow_new_preview {
 3980                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3981            }
 3982        });
 3983
 3984        self.add_item(
 3985            pane,
 3986            Box::new(item.clone()),
 3987            destination_index,
 3988            activate_pane,
 3989            focus_item,
 3990            window,
 3991            cx,
 3992        );
 3993        item
 3994    }
 3995
 3996    pub fn open_shared_screen(
 3997        &mut self,
 3998        peer_id: PeerId,
 3999        window: &mut Window,
 4000        cx: &mut Context<Self>,
 4001    ) {
 4002        if let Some(shared_screen) =
 4003            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4004        {
 4005            self.active_pane.update(cx, |pane, cx| {
 4006                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4007            });
 4008        }
 4009    }
 4010
 4011    pub fn activate_item(
 4012        &mut self,
 4013        item: &dyn ItemHandle,
 4014        activate_pane: bool,
 4015        focus_item: bool,
 4016        window: &mut Window,
 4017        cx: &mut App,
 4018    ) -> bool {
 4019        let result = self.panes.iter().find_map(|pane| {
 4020            pane.read(cx)
 4021                .index_for_item(item)
 4022                .map(|ix| (pane.clone(), ix))
 4023        });
 4024        if let Some((pane, ix)) = result {
 4025            pane.update(cx, |pane, cx| {
 4026                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4027            });
 4028            true
 4029        } else {
 4030            false
 4031        }
 4032    }
 4033
 4034    fn activate_pane_at_index(
 4035        &mut self,
 4036        action: &ActivatePane,
 4037        window: &mut Window,
 4038        cx: &mut Context<Self>,
 4039    ) {
 4040        let panes = self.center.panes();
 4041        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4042            window.focus(&pane.focus_handle(cx), cx);
 4043        } else {
 4044            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4045                .detach();
 4046        }
 4047    }
 4048
 4049    fn move_item_to_pane_at_index(
 4050        &mut self,
 4051        action: &MoveItemToPane,
 4052        window: &mut Window,
 4053        cx: &mut Context<Self>,
 4054    ) {
 4055        let panes = self.center.panes();
 4056        let destination = match panes.get(action.destination) {
 4057            Some(&destination) => destination.clone(),
 4058            None => {
 4059                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4060                    return;
 4061                }
 4062                let direction = SplitDirection::Right;
 4063                let split_off_pane = self
 4064                    .find_pane_in_direction(direction, cx)
 4065                    .unwrap_or_else(|| self.active_pane.clone());
 4066                let new_pane = self.add_pane(window, cx);
 4067                if self
 4068                    .center
 4069                    .split(&split_off_pane, &new_pane, direction, cx)
 4070                    .log_err()
 4071                    .is_none()
 4072                {
 4073                    return;
 4074                };
 4075                new_pane
 4076            }
 4077        };
 4078
 4079        if action.clone {
 4080            if self
 4081                .active_pane
 4082                .read(cx)
 4083                .active_item()
 4084                .is_some_and(|item| item.can_split(cx))
 4085            {
 4086                clone_active_item(
 4087                    self.database_id(),
 4088                    &self.active_pane,
 4089                    &destination,
 4090                    action.focus,
 4091                    window,
 4092                    cx,
 4093                );
 4094                return;
 4095            }
 4096        }
 4097        move_active_item(
 4098            &self.active_pane,
 4099            &destination,
 4100            action.focus,
 4101            true,
 4102            window,
 4103            cx,
 4104        )
 4105    }
 4106
 4107    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4108        let panes = self.center.panes();
 4109        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4110            let next_ix = (ix + 1) % panes.len();
 4111            let next_pane = panes[next_ix].clone();
 4112            window.focus(&next_pane.focus_handle(cx), cx);
 4113        }
 4114    }
 4115
 4116    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4117        let panes = self.center.panes();
 4118        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4119            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4120            let prev_pane = panes[prev_ix].clone();
 4121            window.focus(&prev_pane.focus_handle(cx), cx);
 4122        }
 4123    }
 4124
 4125    pub fn activate_pane_in_direction(
 4126        &mut self,
 4127        direction: SplitDirection,
 4128        window: &mut Window,
 4129        cx: &mut App,
 4130    ) {
 4131        use ActivateInDirectionTarget as Target;
 4132        enum Origin {
 4133            LeftDock,
 4134            RightDock,
 4135            BottomDock,
 4136            Center,
 4137        }
 4138
 4139        let origin: Origin = [
 4140            (&self.left_dock, Origin::LeftDock),
 4141            (&self.right_dock, Origin::RightDock),
 4142            (&self.bottom_dock, Origin::BottomDock),
 4143        ]
 4144        .into_iter()
 4145        .find_map(|(dock, origin)| {
 4146            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4147                Some(origin)
 4148            } else {
 4149                None
 4150            }
 4151        })
 4152        .unwrap_or(Origin::Center);
 4153
 4154        let get_last_active_pane = || {
 4155            let pane = self
 4156                .last_active_center_pane
 4157                .clone()
 4158                .unwrap_or_else(|| {
 4159                    self.panes
 4160                        .first()
 4161                        .expect("There must be an active pane")
 4162                        .downgrade()
 4163                })
 4164                .upgrade()?;
 4165            (pane.read(cx).items_len() != 0).then_some(pane)
 4166        };
 4167
 4168        let try_dock =
 4169            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4170
 4171        let target = match (origin, direction) {
 4172            // We're in the center, so we first try to go to a different pane,
 4173            // otherwise try to go to a dock.
 4174            (Origin::Center, direction) => {
 4175                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4176                    Some(Target::Pane(pane))
 4177                } else {
 4178                    match direction {
 4179                        SplitDirection::Up => None,
 4180                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4181                        SplitDirection::Left => try_dock(&self.left_dock),
 4182                        SplitDirection::Right => try_dock(&self.right_dock),
 4183                    }
 4184                }
 4185            }
 4186
 4187            (Origin::LeftDock, SplitDirection::Right) => {
 4188                if let Some(last_active_pane) = get_last_active_pane() {
 4189                    Some(Target::Pane(last_active_pane))
 4190                } else {
 4191                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4192                }
 4193            }
 4194
 4195            (Origin::LeftDock, SplitDirection::Down)
 4196            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4197
 4198            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4199            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4200            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4201
 4202            (Origin::RightDock, SplitDirection::Left) => {
 4203                if let Some(last_active_pane) = get_last_active_pane() {
 4204                    Some(Target::Pane(last_active_pane))
 4205                } else {
 4206                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4207                }
 4208            }
 4209
 4210            _ => None,
 4211        };
 4212
 4213        match target {
 4214            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4215                let pane = pane.read(cx);
 4216                if let Some(item) = pane.active_item() {
 4217                    item.item_focus_handle(cx).focus(window, cx);
 4218                } else {
 4219                    log::error!(
 4220                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4221                    );
 4222                }
 4223            }
 4224            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4225                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4226                window.defer(cx, move |window, cx| {
 4227                    let dock = dock.read(cx);
 4228                    if let Some(panel) = dock.active_panel() {
 4229                        panel.panel_focus_handle(cx).focus(window, cx);
 4230                    } else {
 4231                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4232                    }
 4233                })
 4234            }
 4235            None => {}
 4236        }
 4237    }
 4238
 4239    pub fn move_item_to_pane_in_direction(
 4240        &mut self,
 4241        action: &MoveItemToPaneInDirection,
 4242        window: &mut Window,
 4243        cx: &mut Context<Self>,
 4244    ) {
 4245        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4246            Some(destination) => destination,
 4247            None => {
 4248                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4249                    return;
 4250                }
 4251                let new_pane = self.add_pane(window, cx);
 4252                if self
 4253                    .center
 4254                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4255                    .log_err()
 4256                    .is_none()
 4257                {
 4258                    return;
 4259                };
 4260                new_pane
 4261            }
 4262        };
 4263
 4264        if action.clone {
 4265            if self
 4266                .active_pane
 4267                .read(cx)
 4268                .active_item()
 4269                .is_some_and(|item| item.can_split(cx))
 4270            {
 4271                clone_active_item(
 4272                    self.database_id(),
 4273                    &self.active_pane,
 4274                    &destination,
 4275                    action.focus,
 4276                    window,
 4277                    cx,
 4278                );
 4279                return;
 4280            }
 4281        }
 4282        move_active_item(
 4283            &self.active_pane,
 4284            &destination,
 4285            action.focus,
 4286            true,
 4287            window,
 4288            cx,
 4289        );
 4290    }
 4291
 4292    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4293        self.center.bounding_box_for_pane(pane)
 4294    }
 4295
 4296    pub fn find_pane_in_direction(
 4297        &mut self,
 4298        direction: SplitDirection,
 4299        cx: &App,
 4300    ) -> Option<Entity<Pane>> {
 4301        self.center
 4302            .find_pane_in_direction(&self.active_pane, direction, cx)
 4303            .cloned()
 4304    }
 4305
 4306    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4307        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4308            self.center.swap(&self.active_pane, &to, cx);
 4309            cx.notify();
 4310        }
 4311    }
 4312
 4313    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4314        if self
 4315            .center
 4316            .move_to_border(&self.active_pane, direction, cx)
 4317            .unwrap()
 4318        {
 4319            cx.notify();
 4320        }
 4321    }
 4322
 4323    pub fn resize_pane(
 4324        &mut self,
 4325        axis: gpui::Axis,
 4326        amount: Pixels,
 4327        window: &mut Window,
 4328        cx: &mut Context<Self>,
 4329    ) {
 4330        let docks = self.all_docks();
 4331        let active_dock = docks
 4332            .into_iter()
 4333            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4334
 4335        if let Some(dock) = active_dock {
 4336            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4337                return;
 4338            };
 4339            match dock.read(cx).position() {
 4340                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4341                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4342                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4343            }
 4344        } else {
 4345            self.center
 4346                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4347        }
 4348        cx.notify();
 4349    }
 4350
 4351    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4352        self.center.reset_pane_sizes(cx);
 4353        cx.notify();
 4354    }
 4355
 4356    fn handle_pane_focused(
 4357        &mut self,
 4358        pane: Entity<Pane>,
 4359        window: &mut Window,
 4360        cx: &mut Context<Self>,
 4361    ) {
 4362        // This is explicitly hoisted out of the following check for pane identity as
 4363        // terminal panel panes are not registered as a center panes.
 4364        self.status_bar.update(cx, |status_bar, cx| {
 4365            status_bar.set_active_pane(&pane, window, cx);
 4366        });
 4367        if self.active_pane != pane {
 4368            self.set_active_pane(&pane, window, cx);
 4369        }
 4370
 4371        if self.last_active_center_pane.is_none() {
 4372            self.last_active_center_pane = Some(pane.downgrade());
 4373        }
 4374
 4375        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4376        // This prevents the dock from closing when focus events fire during window activation.
 4377        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4378            let dock_read = dock.read(cx);
 4379            if let Some(panel) = dock_read.active_panel()
 4380                && let Some(dock_pane) = panel.pane(cx)
 4381                && dock_pane == pane
 4382            {
 4383                Some(dock_read.position())
 4384            } else {
 4385                None
 4386            }
 4387        });
 4388
 4389        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4390        if pane.read(cx).is_zoomed() {
 4391            self.zoomed = Some(pane.downgrade().into());
 4392        } else {
 4393            self.zoomed = None;
 4394        }
 4395        self.zoomed_position = None;
 4396        cx.emit(Event::ZoomChanged);
 4397        self.update_active_view_for_followers(window, cx);
 4398        pane.update(cx, |pane, _| {
 4399            pane.track_alternate_file_items();
 4400        });
 4401
 4402        cx.notify();
 4403    }
 4404
 4405    fn set_active_pane(
 4406        &mut self,
 4407        pane: &Entity<Pane>,
 4408        window: &mut Window,
 4409        cx: &mut Context<Self>,
 4410    ) {
 4411        self.active_pane = pane.clone();
 4412        self.active_item_path_changed(true, window, cx);
 4413        self.last_active_center_pane = Some(pane.downgrade());
 4414    }
 4415
 4416    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4417        self.update_active_view_for_followers(window, cx);
 4418    }
 4419
 4420    fn handle_pane_event(
 4421        &mut self,
 4422        pane: &Entity<Pane>,
 4423        event: &pane::Event,
 4424        window: &mut Window,
 4425        cx: &mut Context<Self>,
 4426    ) {
 4427        let mut serialize_workspace = true;
 4428        match event {
 4429            pane::Event::AddItem { item } => {
 4430                item.added_to_pane(self, pane.clone(), window, cx);
 4431                cx.emit(Event::ItemAdded {
 4432                    item: item.boxed_clone(),
 4433                });
 4434            }
 4435            pane::Event::Split { direction, mode } => {
 4436                match mode {
 4437                    SplitMode::ClonePane => {
 4438                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4439                            .detach();
 4440                    }
 4441                    SplitMode::EmptyPane => {
 4442                        self.split_pane(pane.clone(), *direction, window, cx);
 4443                    }
 4444                    SplitMode::MovePane => {
 4445                        self.split_and_move(pane.clone(), *direction, window, cx);
 4446                    }
 4447                };
 4448            }
 4449            pane::Event::JoinIntoNext => {
 4450                self.join_pane_into_next(pane.clone(), window, cx);
 4451            }
 4452            pane::Event::JoinAll => {
 4453                self.join_all_panes(window, cx);
 4454            }
 4455            pane::Event::Remove { focus_on_pane } => {
 4456                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4457            }
 4458            pane::Event::ActivateItem {
 4459                local,
 4460                focus_changed,
 4461            } => {
 4462                window.invalidate_character_coordinates();
 4463
 4464                pane.update(cx, |pane, _| {
 4465                    pane.track_alternate_file_items();
 4466                });
 4467                if *local {
 4468                    self.unfollow_in_pane(pane, window, cx);
 4469                }
 4470                serialize_workspace = *focus_changed || pane != self.active_pane();
 4471                if pane == self.active_pane() {
 4472                    self.active_item_path_changed(*focus_changed, window, cx);
 4473                    self.update_active_view_for_followers(window, cx);
 4474                } else if *local {
 4475                    self.set_active_pane(pane, window, cx);
 4476                }
 4477            }
 4478            pane::Event::UserSavedItem { item, save_intent } => {
 4479                cx.emit(Event::UserSavedItem {
 4480                    pane: pane.downgrade(),
 4481                    item: item.boxed_clone(),
 4482                    save_intent: *save_intent,
 4483                });
 4484                serialize_workspace = false;
 4485            }
 4486            pane::Event::ChangeItemTitle => {
 4487                if *pane == self.active_pane {
 4488                    self.active_item_path_changed(false, window, cx);
 4489                }
 4490                serialize_workspace = false;
 4491            }
 4492            pane::Event::RemovedItem { item } => {
 4493                cx.emit(Event::ActiveItemChanged);
 4494                self.update_window_edited(window, cx);
 4495                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4496                    && entry.get().entity_id() == pane.entity_id()
 4497                {
 4498                    entry.remove();
 4499                }
 4500                cx.emit(Event::ItemRemoved {
 4501                    item_id: item.item_id(),
 4502                });
 4503            }
 4504            pane::Event::Focus => {
 4505                window.invalidate_character_coordinates();
 4506                self.handle_pane_focused(pane.clone(), window, cx);
 4507            }
 4508            pane::Event::ZoomIn => {
 4509                if *pane == self.active_pane {
 4510                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4511                    if pane.read(cx).has_focus(window, cx) {
 4512                        self.zoomed = Some(pane.downgrade().into());
 4513                        self.zoomed_position = None;
 4514                        cx.emit(Event::ZoomChanged);
 4515                    }
 4516                    cx.notify();
 4517                }
 4518            }
 4519            pane::Event::ZoomOut => {
 4520                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4521                if self.zoomed_position.is_none() {
 4522                    self.zoomed = None;
 4523                    cx.emit(Event::ZoomChanged);
 4524                }
 4525                cx.notify();
 4526            }
 4527            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4528        }
 4529
 4530        if serialize_workspace {
 4531            self.serialize_workspace(window, cx);
 4532        }
 4533    }
 4534
 4535    pub fn unfollow_in_pane(
 4536        &mut self,
 4537        pane: &Entity<Pane>,
 4538        window: &mut Window,
 4539        cx: &mut Context<Workspace>,
 4540    ) -> Option<CollaboratorId> {
 4541        let leader_id = self.leader_for_pane(pane)?;
 4542        self.unfollow(leader_id, window, cx);
 4543        Some(leader_id)
 4544    }
 4545
 4546    pub fn split_pane(
 4547        &mut self,
 4548        pane_to_split: Entity<Pane>,
 4549        split_direction: SplitDirection,
 4550        window: &mut Window,
 4551        cx: &mut Context<Self>,
 4552    ) -> Entity<Pane> {
 4553        let new_pane = self.add_pane(window, cx);
 4554        self.center
 4555            .split(&pane_to_split, &new_pane, split_direction, cx)
 4556            .unwrap();
 4557        cx.notify();
 4558        new_pane
 4559    }
 4560
 4561    pub fn split_and_move(
 4562        &mut self,
 4563        pane: Entity<Pane>,
 4564        direction: SplitDirection,
 4565        window: &mut Window,
 4566        cx: &mut Context<Self>,
 4567    ) {
 4568        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4569            return;
 4570        };
 4571        let new_pane = self.add_pane(window, cx);
 4572        new_pane.update(cx, |pane, cx| {
 4573            pane.add_item(item, true, true, None, window, cx)
 4574        });
 4575        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4576        cx.notify();
 4577    }
 4578
 4579    pub fn split_and_clone(
 4580        &mut self,
 4581        pane: Entity<Pane>,
 4582        direction: SplitDirection,
 4583        window: &mut Window,
 4584        cx: &mut Context<Self>,
 4585    ) -> Task<Option<Entity<Pane>>> {
 4586        let Some(item) = pane.read(cx).active_item() else {
 4587            return Task::ready(None);
 4588        };
 4589        if !item.can_split(cx) {
 4590            return Task::ready(None);
 4591        }
 4592        let task = item.clone_on_split(self.database_id(), window, cx);
 4593        cx.spawn_in(window, async move |this, cx| {
 4594            if let Some(clone) = task.await {
 4595                this.update_in(cx, |this, window, cx| {
 4596                    let new_pane = this.add_pane(window, cx);
 4597                    let nav_history = pane.read(cx).fork_nav_history();
 4598                    new_pane.update(cx, |pane, cx| {
 4599                        pane.set_nav_history(nav_history, cx);
 4600                        pane.add_item(clone, true, true, None, window, cx)
 4601                    });
 4602                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4603                    cx.notify();
 4604                    new_pane
 4605                })
 4606                .ok()
 4607            } else {
 4608                None
 4609            }
 4610        })
 4611    }
 4612
 4613    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4614        let active_item = self.active_pane.read(cx).active_item();
 4615        for pane in &self.panes {
 4616            join_pane_into_active(&self.active_pane, pane, window, cx);
 4617        }
 4618        if let Some(active_item) = active_item {
 4619            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4620        }
 4621        cx.notify();
 4622    }
 4623
 4624    pub fn join_pane_into_next(
 4625        &mut self,
 4626        pane: Entity<Pane>,
 4627        window: &mut Window,
 4628        cx: &mut Context<Self>,
 4629    ) {
 4630        let next_pane = self
 4631            .find_pane_in_direction(SplitDirection::Right, cx)
 4632            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4633            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4634            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4635        let Some(next_pane) = next_pane else {
 4636            return;
 4637        };
 4638        move_all_items(&pane, &next_pane, window, cx);
 4639        cx.notify();
 4640    }
 4641
 4642    fn remove_pane(
 4643        &mut self,
 4644        pane: Entity<Pane>,
 4645        focus_on: Option<Entity<Pane>>,
 4646        window: &mut Window,
 4647        cx: &mut Context<Self>,
 4648    ) {
 4649        if self.center.remove(&pane, cx).unwrap() {
 4650            self.force_remove_pane(&pane, &focus_on, window, cx);
 4651            self.unfollow_in_pane(&pane, window, cx);
 4652            self.last_leaders_by_pane.remove(&pane.downgrade());
 4653            for removed_item in pane.read(cx).items() {
 4654                self.panes_by_item.remove(&removed_item.item_id());
 4655            }
 4656
 4657            cx.notify();
 4658        } else {
 4659            self.active_item_path_changed(true, window, cx);
 4660        }
 4661        cx.emit(Event::PaneRemoved);
 4662    }
 4663
 4664    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4665        &mut self.panes
 4666    }
 4667
 4668    pub fn panes(&self) -> &[Entity<Pane>] {
 4669        &self.panes
 4670    }
 4671
 4672    pub fn active_pane(&self) -> &Entity<Pane> {
 4673        &self.active_pane
 4674    }
 4675
 4676    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4677        for dock in self.all_docks() {
 4678            if dock.focus_handle(cx).contains_focused(window, cx)
 4679                && let Some(pane) = dock
 4680                    .read(cx)
 4681                    .active_panel()
 4682                    .and_then(|panel| panel.pane(cx))
 4683            {
 4684                return pane;
 4685            }
 4686        }
 4687        self.active_pane().clone()
 4688    }
 4689
 4690    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4691        self.find_pane_in_direction(SplitDirection::Right, cx)
 4692            .unwrap_or_else(|| {
 4693                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4694            })
 4695    }
 4696
 4697    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4698        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4699        weak_pane.upgrade()
 4700    }
 4701
 4702    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4703        self.follower_states.retain(|leader_id, state| {
 4704            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4705                for item in state.items_by_leader_view_id.values() {
 4706                    item.view.set_leader_id(None, window, cx);
 4707                }
 4708                false
 4709            } else {
 4710                true
 4711            }
 4712        });
 4713        cx.notify();
 4714    }
 4715
 4716    pub fn start_following(
 4717        &mut self,
 4718        leader_id: impl Into<CollaboratorId>,
 4719        window: &mut Window,
 4720        cx: &mut Context<Self>,
 4721    ) -> Option<Task<Result<()>>> {
 4722        let leader_id = leader_id.into();
 4723        let pane = self.active_pane().clone();
 4724
 4725        self.last_leaders_by_pane
 4726            .insert(pane.downgrade(), leader_id);
 4727        self.unfollow(leader_id, window, cx);
 4728        self.unfollow_in_pane(&pane, window, cx);
 4729        self.follower_states.insert(
 4730            leader_id,
 4731            FollowerState {
 4732                center_pane: pane.clone(),
 4733                dock_pane: None,
 4734                active_view_id: None,
 4735                items_by_leader_view_id: Default::default(),
 4736            },
 4737        );
 4738        cx.notify();
 4739
 4740        match leader_id {
 4741            CollaboratorId::PeerId(leader_peer_id) => {
 4742                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4743                let project_id = self.project.read(cx).remote_id();
 4744                let request = self.app_state.client.request(proto::Follow {
 4745                    room_id,
 4746                    project_id,
 4747                    leader_id: Some(leader_peer_id),
 4748                });
 4749
 4750                Some(cx.spawn_in(window, async move |this, cx| {
 4751                    let response = request.await?;
 4752                    this.update(cx, |this, _| {
 4753                        let state = this
 4754                            .follower_states
 4755                            .get_mut(&leader_id)
 4756                            .context("following interrupted")?;
 4757                        state.active_view_id = response
 4758                            .active_view
 4759                            .as_ref()
 4760                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4761                        anyhow::Ok(())
 4762                    })??;
 4763                    if let Some(view) = response.active_view {
 4764                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4765                    }
 4766                    this.update_in(cx, |this, window, cx| {
 4767                        this.leader_updated(leader_id, window, cx)
 4768                    })?;
 4769                    Ok(())
 4770                }))
 4771            }
 4772            CollaboratorId::Agent => {
 4773                self.leader_updated(leader_id, window, cx)?;
 4774                Some(Task::ready(Ok(())))
 4775            }
 4776        }
 4777    }
 4778
 4779    pub fn follow_next_collaborator(
 4780        &mut self,
 4781        _: &FollowNextCollaborator,
 4782        window: &mut Window,
 4783        cx: &mut Context<Self>,
 4784    ) {
 4785        let collaborators = self.project.read(cx).collaborators();
 4786        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4787            let mut collaborators = collaborators.keys().copied();
 4788            for peer_id in collaborators.by_ref() {
 4789                if CollaboratorId::PeerId(peer_id) == leader_id {
 4790                    break;
 4791                }
 4792            }
 4793            collaborators.next().map(CollaboratorId::PeerId)
 4794        } else if let Some(last_leader_id) =
 4795            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4796        {
 4797            match last_leader_id {
 4798                CollaboratorId::PeerId(peer_id) => {
 4799                    if collaborators.contains_key(peer_id) {
 4800                        Some(*last_leader_id)
 4801                    } else {
 4802                        None
 4803                    }
 4804                }
 4805                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4806            }
 4807        } else {
 4808            None
 4809        };
 4810
 4811        let pane = self.active_pane.clone();
 4812        let Some(leader_id) = next_leader_id.or_else(|| {
 4813            Some(CollaboratorId::PeerId(
 4814                collaborators.keys().copied().next()?,
 4815            ))
 4816        }) else {
 4817            return;
 4818        };
 4819        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4820            return;
 4821        }
 4822        if let Some(task) = self.start_following(leader_id, window, cx) {
 4823            task.detach_and_log_err(cx)
 4824        }
 4825    }
 4826
 4827    pub fn follow(
 4828        &mut self,
 4829        leader_id: impl Into<CollaboratorId>,
 4830        window: &mut Window,
 4831        cx: &mut Context<Self>,
 4832    ) {
 4833        let leader_id = leader_id.into();
 4834
 4835        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4836            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4837                return;
 4838            };
 4839            let room = room.read(cx);
 4840            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4841                return;
 4842            };
 4843
 4844            let project = self.project.read(cx);
 4845
 4846            let other_project_id = match remote_participant.location {
 4847                call::ParticipantLocation::External => None,
 4848                call::ParticipantLocation::UnsharedProject => None,
 4849                call::ParticipantLocation::SharedProject { project_id } => {
 4850                    if Some(project_id) == project.remote_id() {
 4851                        None
 4852                    } else {
 4853                        Some(project_id)
 4854                    }
 4855                }
 4856            };
 4857
 4858            // if they are active in another project, follow there.
 4859            if let Some(project_id) = other_project_id {
 4860                let app_state = self.app_state.clone();
 4861                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4862                    .detach_and_log_err(cx);
 4863            }
 4864        }
 4865
 4866        // if you're already following, find the right pane and focus it.
 4867        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4868            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4869
 4870            return;
 4871        }
 4872
 4873        // Otherwise, follow.
 4874        if let Some(task) = self.start_following(leader_id, window, cx) {
 4875            task.detach_and_log_err(cx)
 4876        }
 4877    }
 4878
 4879    pub fn unfollow(
 4880        &mut self,
 4881        leader_id: impl Into<CollaboratorId>,
 4882        window: &mut Window,
 4883        cx: &mut Context<Self>,
 4884    ) -> Option<()> {
 4885        cx.notify();
 4886
 4887        let leader_id = leader_id.into();
 4888        let state = self.follower_states.remove(&leader_id)?;
 4889        for (_, item) in state.items_by_leader_view_id {
 4890            item.view.set_leader_id(None, window, cx);
 4891        }
 4892
 4893        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4894            let project_id = self.project.read(cx).remote_id();
 4895            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4896            self.app_state
 4897                .client
 4898                .send(proto::Unfollow {
 4899                    room_id,
 4900                    project_id,
 4901                    leader_id: Some(leader_peer_id),
 4902                })
 4903                .log_err();
 4904        }
 4905
 4906        Some(())
 4907    }
 4908
 4909    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4910        self.follower_states.contains_key(&id.into())
 4911    }
 4912
 4913    fn active_item_path_changed(
 4914        &mut self,
 4915        focus_changed: bool,
 4916        window: &mut Window,
 4917        cx: &mut Context<Self>,
 4918    ) {
 4919        cx.emit(Event::ActiveItemChanged);
 4920        let active_entry = self.active_project_path(cx);
 4921        self.project.update(cx, |project, cx| {
 4922            project.set_active_path(active_entry.clone(), cx)
 4923        });
 4924
 4925        if focus_changed && let Some(project_path) = &active_entry {
 4926            let git_store_entity = self.project.read(cx).git_store().clone();
 4927            git_store_entity.update(cx, |git_store, cx| {
 4928                git_store.set_active_repo_for_path(project_path, cx);
 4929            });
 4930        }
 4931
 4932        self.update_window_title(window, cx);
 4933    }
 4934
 4935    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4936        let project = self.project().read(cx);
 4937        let mut title = String::new();
 4938
 4939        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4940            let name = {
 4941                let settings_location = SettingsLocation {
 4942                    worktree_id: worktree.read(cx).id(),
 4943                    path: RelPath::empty(),
 4944                };
 4945
 4946                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4947                match &settings.project_name {
 4948                    Some(name) => name.as_str(),
 4949                    None => worktree.read(cx).root_name_str(),
 4950                }
 4951            };
 4952            if i > 0 {
 4953                title.push_str(", ");
 4954            }
 4955            title.push_str(name);
 4956        }
 4957
 4958        if title.is_empty() {
 4959            title = "empty project".to_string();
 4960        }
 4961
 4962        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4963            let filename = path.path.file_name().or_else(|| {
 4964                Some(
 4965                    project
 4966                        .worktree_for_id(path.worktree_id, cx)?
 4967                        .read(cx)
 4968                        .root_name_str(),
 4969                )
 4970            });
 4971
 4972            if let Some(filename) = filename {
 4973                title.push_str("");
 4974                title.push_str(filename.as_ref());
 4975            }
 4976        }
 4977
 4978        if project.is_via_collab() {
 4979            title.push_str("");
 4980        } else if project.is_shared() {
 4981            title.push_str("");
 4982        }
 4983
 4984        if let Some(last_title) = self.last_window_title.as_ref()
 4985            && &title == last_title
 4986        {
 4987            return;
 4988        }
 4989        window.set_window_title(&title);
 4990        SystemWindowTabController::update_tab_title(
 4991            cx,
 4992            window.window_handle().window_id(),
 4993            SharedString::from(&title),
 4994        );
 4995        self.last_window_title = Some(title);
 4996    }
 4997
 4998    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4999        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5000        if is_edited != self.window_edited {
 5001            self.window_edited = is_edited;
 5002            window.set_window_edited(self.window_edited)
 5003        }
 5004    }
 5005
 5006    fn update_item_dirty_state(
 5007        &mut self,
 5008        item: &dyn ItemHandle,
 5009        window: &mut Window,
 5010        cx: &mut App,
 5011    ) {
 5012        let is_dirty = item.is_dirty(cx);
 5013        let item_id = item.item_id();
 5014        let was_dirty = self.dirty_items.contains_key(&item_id);
 5015        if is_dirty == was_dirty {
 5016            return;
 5017        }
 5018        if was_dirty {
 5019            self.dirty_items.remove(&item_id);
 5020            self.update_window_edited(window, cx);
 5021            return;
 5022        }
 5023        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 5024            let s = item.on_release(
 5025                cx,
 5026                Box::new(move |cx| {
 5027                    window_handle
 5028                        .update(cx, |this, window, cx| {
 5029                            this.dirty_items.remove(&item_id);
 5030                            this.update_window_edited(window, cx)
 5031                        })
 5032                        .ok();
 5033                }),
 5034            );
 5035            self.dirty_items.insert(item_id, s);
 5036            self.update_window_edited(window, cx);
 5037        }
 5038    }
 5039
 5040    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5041        if self.notifications.is_empty() {
 5042            None
 5043        } else {
 5044            Some(
 5045                div()
 5046                    .absolute()
 5047                    .right_3()
 5048                    .bottom_3()
 5049                    .w_112()
 5050                    .h_full()
 5051                    .flex()
 5052                    .flex_col()
 5053                    .justify_end()
 5054                    .gap_2()
 5055                    .children(
 5056                        self.notifications
 5057                            .iter()
 5058                            .map(|(_, notification)| notification.clone().into_any()),
 5059                    ),
 5060            )
 5061        }
 5062    }
 5063
 5064    // RPC handlers
 5065
 5066    fn active_view_for_follower(
 5067        &self,
 5068        follower_project_id: Option<u64>,
 5069        window: &mut Window,
 5070        cx: &mut Context<Self>,
 5071    ) -> Option<proto::View> {
 5072        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5073        let item = item?;
 5074        let leader_id = self
 5075            .pane_for(&*item)
 5076            .and_then(|pane| self.leader_for_pane(&pane));
 5077        let leader_peer_id = match leader_id {
 5078            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5079            Some(CollaboratorId::Agent) | None => None,
 5080        };
 5081
 5082        let item_handle = item.to_followable_item_handle(cx)?;
 5083        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5084        let variant = item_handle.to_state_proto(window, cx)?;
 5085
 5086        if item_handle.is_project_item(window, cx)
 5087            && (follower_project_id.is_none()
 5088                || follower_project_id != self.project.read(cx).remote_id())
 5089        {
 5090            return None;
 5091        }
 5092
 5093        Some(proto::View {
 5094            id: id.to_proto(),
 5095            leader_id: leader_peer_id,
 5096            variant: Some(variant),
 5097            panel_id: panel_id.map(|id| id as i32),
 5098        })
 5099    }
 5100
 5101    fn handle_follow(
 5102        &mut self,
 5103        follower_project_id: Option<u64>,
 5104        window: &mut Window,
 5105        cx: &mut Context<Self>,
 5106    ) -> proto::FollowResponse {
 5107        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5108
 5109        cx.notify();
 5110        proto::FollowResponse {
 5111            views: active_view.iter().cloned().collect(),
 5112            active_view,
 5113        }
 5114    }
 5115
 5116    fn handle_update_followers(
 5117        &mut self,
 5118        leader_id: PeerId,
 5119        message: proto::UpdateFollowers,
 5120        _window: &mut Window,
 5121        _cx: &mut Context<Self>,
 5122    ) {
 5123        self.leader_updates_tx
 5124            .unbounded_send((leader_id, message))
 5125            .ok();
 5126    }
 5127
 5128    async fn process_leader_update(
 5129        this: &WeakEntity<Self>,
 5130        leader_id: PeerId,
 5131        update: proto::UpdateFollowers,
 5132        cx: &mut AsyncWindowContext,
 5133    ) -> Result<()> {
 5134        match update.variant.context("invalid update")? {
 5135            proto::update_followers::Variant::CreateView(view) => {
 5136                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5137                let should_add_view = this.update(cx, |this, _| {
 5138                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5139                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5140                    } else {
 5141                        anyhow::Ok(false)
 5142                    }
 5143                })??;
 5144
 5145                if should_add_view {
 5146                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5147                }
 5148            }
 5149            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5150                let should_add_view = this.update(cx, |this, _| {
 5151                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5152                        state.active_view_id = update_active_view
 5153                            .view
 5154                            .as_ref()
 5155                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5156
 5157                        if state.active_view_id.is_some_and(|view_id| {
 5158                            !state.items_by_leader_view_id.contains_key(&view_id)
 5159                        }) {
 5160                            anyhow::Ok(true)
 5161                        } else {
 5162                            anyhow::Ok(false)
 5163                        }
 5164                    } else {
 5165                        anyhow::Ok(false)
 5166                    }
 5167                })??;
 5168
 5169                if should_add_view && let Some(view) = update_active_view.view {
 5170                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5171                }
 5172            }
 5173            proto::update_followers::Variant::UpdateView(update_view) => {
 5174                let variant = update_view.variant.context("missing update view variant")?;
 5175                let id = update_view.id.context("missing update view id")?;
 5176                let mut tasks = Vec::new();
 5177                this.update_in(cx, |this, window, cx| {
 5178                    let project = this.project.clone();
 5179                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5180                        let view_id = ViewId::from_proto(id.clone())?;
 5181                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5182                            tasks.push(item.view.apply_update_proto(
 5183                                &project,
 5184                                variant.clone(),
 5185                                window,
 5186                                cx,
 5187                            ));
 5188                        }
 5189                    }
 5190                    anyhow::Ok(())
 5191                })??;
 5192                try_join_all(tasks).await.log_err();
 5193            }
 5194        }
 5195        this.update_in(cx, |this, window, cx| {
 5196            this.leader_updated(leader_id, window, cx)
 5197        })?;
 5198        Ok(())
 5199    }
 5200
 5201    async fn add_view_from_leader(
 5202        this: WeakEntity<Self>,
 5203        leader_id: PeerId,
 5204        view: &proto::View,
 5205        cx: &mut AsyncWindowContext,
 5206    ) -> Result<()> {
 5207        let this = this.upgrade().context("workspace dropped")?;
 5208
 5209        let Some(id) = view.id.clone() else {
 5210            anyhow::bail!("no id for view");
 5211        };
 5212        let id = ViewId::from_proto(id)?;
 5213        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5214
 5215        let pane = this.update(cx, |this, _cx| {
 5216            let state = this
 5217                .follower_states
 5218                .get(&leader_id.into())
 5219                .context("stopped following")?;
 5220            anyhow::Ok(state.pane().clone())
 5221        })?;
 5222        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5223            let client = this.read(cx).client().clone();
 5224            pane.items().find_map(|item| {
 5225                let item = item.to_followable_item_handle(cx)?;
 5226                if item.remote_id(&client, window, cx) == Some(id) {
 5227                    Some(item)
 5228                } else {
 5229                    None
 5230                }
 5231            })
 5232        })?;
 5233        let item = if let Some(existing_item) = existing_item {
 5234            existing_item
 5235        } else {
 5236            let variant = view.variant.clone();
 5237            anyhow::ensure!(variant.is_some(), "missing view variant");
 5238
 5239            let task = cx.update(|window, cx| {
 5240                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5241            })?;
 5242
 5243            let Some(task) = task else {
 5244                anyhow::bail!(
 5245                    "failed to construct view from leader (maybe from a different version of zed?)"
 5246                );
 5247            };
 5248
 5249            let mut new_item = task.await?;
 5250            pane.update_in(cx, |pane, window, cx| {
 5251                let mut item_to_remove = None;
 5252                for (ix, item) in pane.items().enumerate() {
 5253                    if let Some(item) = item.to_followable_item_handle(cx) {
 5254                        match new_item.dedup(item.as_ref(), window, cx) {
 5255                            Some(item::Dedup::KeepExisting) => {
 5256                                new_item =
 5257                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5258                                break;
 5259                            }
 5260                            Some(item::Dedup::ReplaceExisting) => {
 5261                                item_to_remove = Some((ix, item.item_id()));
 5262                                break;
 5263                            }
 5264                            None => {}
 5265                        }
 5266                    }
 5267                }
 5268
 5269                if let Some((ix, id)) = item_to_remove {
 5270                    pane.remove_item(id, false, false, window, cx);
 5271                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5272                }
 5273            })?;
 5274
 5275            new_item
 5276        };
 5277
 5278        this.update_in(cx, |this, window, cx| {
 5279            let state = this.follower_states.get_mut(&leader_id.into())?;
 5280            item.set_leader_id(Some(leader_id.into()), window, cx);
 5281            state.items_by_leader_view_id.insert(
 5282                id,
 5283                FollowerView {
 5284                    view: item,
 5285                    location: panel_id,
 5286                },
 5287            );
 5288
 5289            Some(())
 5290        })
 5291        .context("no follower state")?;
 5292
 5293        Ok(())
 5294    }
 5295
 5296    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5297        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5298            return;
 5299        };
 5300
 5301        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5302            let buffer_entity_id = agent_location.buffer.entity_id();
 5303            let view_id = ViewId {
 5304                creator: CollaboratorId::Agent,
 5305                id: buffer_entity_id.as_u64(),
 5306            };
 5307            follower_state.active_view_id = Some(view_id);
 5308
 5309            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5310                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5311                hash_map::Entry::Vacant(entry) => {
 5312                    let existing_view =
 5313                        follower_state
 5314                            .center_pane
 5315                            .read(cx)
 5316                            .items()
 5317                            .find_map(|item| {
 5318                                let item = item.to_followable_item_handle(cx)?;
 5319                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5320                                    && item.project_item_model_ids(cx).as_slice()
 5321                                        == [buffer_entity_id]
 5322                                {
 5323                                    Some(item)
 5324                                } else {
 5325                                    None
 5326                                }
 5327                            });
 5328                    let view = existing_view.or_else(|| {
 5329                        agent_location.buffer.upgrade().and_then(|buffer| {
 5330                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5331                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5332                            })?
 5333                            .to_followable_item_handle(cx)
 5334                        })
 5335                    });
 5336
 5337                    view.map(|view| {
 5338                        entry.insert(FollowerView {
 5339                            view,
 5340                            location: None,
 5341                        })
 5342                    })
 5343                }
 5344            };
 5345
 5346            if let Some(item) = item {
 5347                item.view
 5348                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5349                item.view
 5350                    .update_agent_location(agent_location.position, window, cx);
 5351            }
 5352        } else {
 5353            follower_state.active_view_id = None;
 5354        }
 5355
 5356        self.leader_updated(CollaboratorId::Agent, window, cx);
 5357    }
 5358
 5359    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5360        let mut is_project_item = true;
 5361        let mut update = proto::UpdateActiveView::default();
 5362        if window.is_window_active() {
 5363            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5364
 5365            if let Some(item) = active_item
 5366                && item.item_focus_handle(cx).contains_focused(window, cx)
 5367            {
 5368                let leader_id = self
 5369                    .pane_for(&*item)
 5370                    .and_then(|pane| self.leader_for_pane(&pane));
 5371                let leader_peer_id = match leader_id {
 5372                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5373                    Some(CollaboratorId::Agent) | None => None,
 5374                };
 5375
 5376                if let Some(item) = item.to_followable_item_handle(cx) {
 5377                    let id = item
 5378                        .remote_id(&self.app_state.client, window, cx)
 5379                        .map(|id| id.to_proto());
 5380
 5381                    if let Some(id) = id
 5382                        && let Some(variant) = item.to_state_proto(window, cx)
 5383                    {
 5384                        let view = Some(proto::View {
 5385                            id,
 5386                            leader_id: leader_peer_id,
 5387                            variant: Some(variant),
 5388                            panel_id: panel_id.map(|id| id as i32),
 5389                        });
 5390
 5391                        is_project_item = item.is_project_item(window, cx);
 5392                        update = proto::UpdateActiveView { view };
 5393                    };
 5394                }
 5395            }
 5396        }
 5397
 5398        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5399        if active_view_id != self.last_active_view_id.as_ref() {
 5400            self.last_active_view_id = active_view_id.cloned();
 5401            self.update_followers(
 5402                is_project_item,
 5403                proto::update_followers::Variant::UpdateActiveView(update),
 5404                window,
 5405                cx,
 5406            );
 5407        }
 5408    }
 5409
 5410    fn active_item_for_followers(
 5411        &self,
 5412        window: &mut Window,
 5413        cx: &mut App,
 5414    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5415        let mut active_item = None;
 5416        let mut panel_id = None;
 5417        for dock in self.all_docks() {
 5418            if dock.focus_handle(cx).contains_focused(window, cx)
 5419                && let Some(panel) = dock.read(cx).active_panel()
 5420                && let Some(pane) = panel.pane(cx)
 5421                && let Some(item) = pane.read(cx).active_item()
 5422            {
 5423                active_item = Some(item);
 5424                panel_id = panel.remote_id();
 5425                break;
 5426            }
 5427        }
 5428
 5429        if active_item.is_none() {
 5430            active_item = self.active_pane().read(cx).active_item();
 5431        }
 5432        (active_item, panel_id)
 5433    }
 5434
 5435    fn update_followers(
 5436        &self,
 5437        project_only: bool,
 5438        update: proto::update_followers::Variant,
 5439        _: &mut Window,
 5440        cx: &mut App,
 5441    ) -> Option<()> {
 5442        // If this update only applies to for followers in the current project,
 5443        // then skip it unless this project is shared. If it applies to all
 5444        // followers, regardless of project, then set `project_id` to none,
 5445        // indicating that it goes to all followers.
 5446        let project_id = if project_only {
 5447            Some(self.project.read(cx).remote_id()?)
 5448        } else {
 5449            None
 5450        };
 5451        self.app_state().workspace_store.update(cx, |store, cx| {
 5452            store.update_followers(project_id, update, cx)
 5453        })
 5454    }
 5455
 5456    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5457        self.follower_states.iter().find_map(|(leader_id, state)| {
 5458            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5459                Some(*leader_id)
 5460            } else {
 5461                None
 5462            }
 5463        })
 5464    }
 5465
 5466    fn leader_updated(
 5467        &mut self,
 5468        leader_id: impl Into<CollaboratorId>,
 5469        window: &mut Window,
 5470        cx: &mut Context<Self>,
 5471    ) -> Option<Box<dyn ItemHandle>> {
 5472        cx.notify();
 5473
 5474        let leader_id = leader_id.into();
 5475        let (panel_id, item) = match leader_id {
 5476            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5477            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5478        };
 5479
 5480        let state = self.follower_states.get(&leader_id)?;
 5481        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5482        let pane;
 5483        if let Some(panel_id) = panel_id {
 5484            pane = self
 5485                .activate_panel_for_proto_id(panel_id, window, cx)?
 5486                .pane(cx)?;
 5487            let state = self.follower_states.get_mut(&leader_id)?;
 5488            state.dock_pane = Some(pane.clone());
 5489        } else {
 5490            pane = state.center_pane.clone();
 5491            let state = self.follower_states.get_mut(&leader_id)?;
 5492            if let Some(dock_pane) = state.dock_pane.take() {
 5493                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5494            }
 5495        }
 5496
 5497        pane.update(cx, |pane, cx| {
 5498            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5499            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5500                pane.activate_item(index, false, false, window, cx);
 5501            } else {
 5502                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5503            }
 5504
 5505            if focus_active_item {
 5506                pane.focus_active_item(window, cx)
 5507            }
 5508        });
 5509
 5510        Some(item)
 5511    }
 5512
 5513    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5514        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5515        let active_view_id = state.active_view_id?;
 5516        Some(
 5517            state
 5518                .items_by_leader_view_id
 5519                .get(&active_view_id)?
 5520                .view
 5521                .boxed_clone(),
 5522        )
 5523    }
 5524
 5525    fn active_item_for_peer(
 5526        &self,
 5527        peer_id: PeerId,
 5528        window: &mut Window,
 5529        cx: &mut Context<Self>,
 5530    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5531        let call = self.active_call()?;
 5532        let room = call.read(cx).room()?.read(cx);
 5533        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5534        let leader_in_this_app;
 5535        let leader_in_this_project;
 5536        match participant.location {
 5537            call::ParticipantLocation::SharedProject { project_id } => {
 5538                leader_in_this_app = true;
 5539                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5540            }
 5541            call::ParticipantLocation::UnsharedProject => {
 5542                leader_in_this_app = true;
 5543                leader_in_this_project = false;
 5544            }
 5545            call::ParticipantLocation::External => {
 5546                leader_in_this_app = false;
 5547                leader_in_this_project = false;
 5548            }
 5549        };
 5550        let state = self.follower_states.get(&peer_id.into())?;
 5551        let mut item_to_activate = None;
 5552        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5553            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5554                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5555            {
 5556                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5557            }
 5558        } else if let Some(shared_screen) =
 5559            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5560        {
 5561            item_to_activate = Some((None, Box::new(shared_screen)));
 5562        }
 5563        item_to_activate
 5564    }
 5565
 5566    fn shared_screen_for_peer(
 5567        &self,
 5568        peer_id: PeerId,
 5569        pane: &Entity<Pane>,
 5570        window: &mut Window,
 5571        cx: &mut App,
 5572    ) -> Option<Entity<SharedScreen>> {
 5573        let call = self.active_call()?;
 5574        let room = call.read(cx).room()?.clone();
 5575        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5576        let track = participant.video_tracks.values().next()?.clone();
 5577        let user = participant.user.clone();
 5578
 5579        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5580            if item.read(cx).peer_id == peer_id {
 5581                return Some(item);
 5582            }
 5583        }
 5584
 5585        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5586    }
 5587
 5588    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5589        if window.is_window_active() {
 5590            self.update_active_view_for_followers(window, cx);
 5591
 5592            if let Some(database_id) = self.database_id {
 5593                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5594                    .detach();
 5595            }
 5596        } else {
 5597            for pane in &self.panes {
 5598                pane.update(cx, |pane, cx| {
 5599                    if let Some(item) = pane.active_item() {
 5600                        item.workspace_deactivated(window, cx);
 5601                    }
 5602                    for item in pane.items() {
 5603                        if matches!(
 5604                            item.workspace_settings(cx).autosave,
 5605                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5606                        ) {
 5607                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5608                                .detach_and_log_err(cx);
 5609                        }
 5610                    }
 5611                });
 5612            }
 5613        }
 5614    }
 5615
 5616    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5617        self.active_call.as_ref().map(|(call, _)| call)
 5618    }
 5619
 5620    fn on_active_call_event(
 5621        &mut self,
 5622        _: &Entity<ActiveCall>,
 5623        event: &call::room::Event,
 5624        window: &mut Window,
 5625        cx: &mut Context<Self>,
 5626    ) {
 5627        match event {
 5628            call::room::Event::ParticipantLocationChanged { participant_id }
 5629            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5630                self.leader_updated(participant_id, window, cx);
 5631            }
 5632            _ => {}
 5633        }
 5634    }
 5635
 5636    pub fn database_id(&self) -> Option<WorkspaceId> {
 5637        self.database_id
 5638    }
 5639
 5640    pub fn session_id(&self) -> Option<String> {
 5641        self.session_id.clone()
 5642    }
 5643
 5644    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5645        let project = self.project().read(cx);
 5646        project
 5647            .visible_worktrees(cx)
 5648            .map(|worktree| worktree.read(cx).abs_path())
 5649            .collect::<Vec<_>>()
 5650    }
 5651
 5652    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5653        match member {
 5654            Member::Axis(PaneAxis { members, .. }) => {
 5655                for child in members.iter() {
 5656                    self.remove_panes(child.clone(), window, cx)
 5657                }
 5658            }
 5659            Member::Pane(pane) => {
 5660                self.force_remove_pane(&pane, &None, window, cx);
 5661            }
 5662        }
 5663    }
 5664
 5665    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5666        self.session_id.take();
 5667        self.serialize_workspace_internal(window, cx)
 5668    }
 5669
 5670    fn force_remove_pane(
 5671        &mut self,
 5672        pane: &Entity<Pane>,
 5673        focus_on: &Option<Entity<Pane>>,
 5674        window: &mut Window,
 5675        cx: &mut Context<Workspace>,
 5676    ) {
 5677        self.panes.retain(|p| p != pane);
 5678        if let Some(focus_on) = focus_on {
 5679            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5680        } else if self.active_pane() == pane {
 5681            self.panes
 5682                .last()
 5683                .unwrap()
 5684                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5685        }
 5686        if self.last_active_center_pane == Some(pane.downgrade()) {
 5687            self.last_active_center_pane = None;
 5688        }
 5689        cx.notify();
 5690    }
 5691
 5692    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5693        if self._schedule_serialize_workspace.is_none() {
 5694            self._schedule_serialize_workspace =
 5695                Some(cx.spawn_in(window, async move |this, cx| {
 5696                    cx.background_executor()
 5697                        .timer(SERIALIZATION_THROTTLE_TIME)
 5698                        .await;
 5699                    this.update_in(cx, |this, window, cx| {
 5700                        this.serialize_workspace_internal(window, cx).detach();
 5701                        this._schedule_serialize_workspace.take();
 5702                    })
 5703                    .log_err();
 5704                }));
 5705        }
 5706    }
 5707
 5708    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5709        let Some(database_id) = self.database_id() else {
 5710            return Task::ready(());
 5711        };
 5712
 5713        fn serialize_pane_handle(
 5714            pane_handle: &Entity<Pane>,
 5715            window: &mut Window,
 5716            cx: &mut App,
 5717        ) -> SerializedPane {
 5718            let (items, active, pinned_count) = {
 5719                let pane = pane_handle.read(cx);
 5720                let active_item_id = pane.active_item().map(|item| item.item_id());
 5721                (
 5722                    pane.items()
 5723                        .filter_map(|handle| {
 5724                            let handle = handle.to_serializable_item_handle(cx)?;
 5725
 5726                            Some(SerializedItem {
 5727                                kind: Arc::from(handle.serialized_item_kind()),
 5728                                item_id: handle.item_id().as_u64(),
 5729                                active: Some(handle.item_id()) == active_item_id,
 5730                                preview: pane.is_active_preview_item(handle.item_id()),
 5731                            })
 5732                        })
 5733                        .collect::<Vec<_>>(),
 5734                    pane.has_focus(window, cx),
 5735                    pane.pinned_count(),
 5736                )
 5737            };
 5738
 5739            SerializedPane::new(items, active, pinned_count)
 5740        }
 5741
 5742        fn build_serialized_pane_group(
 5743            pane_group: &Member,
 5744            window: &mut Window,
 5745            cx: &mut App,
 5746        ) -> SerializedPaneGroup {
 5747            match pane_group {
 5748                Member::Axis(PaneAxis {
 5749                    axis,
 5750                    members,
 5751                    flexes,
 5752                    bounding_boxes: _,
 5753                }) => SerializedPaneGroup::Group {
 5754                    axis: SerializedAxis(*axis),
 5755                    children: members
 5756                        .iter()
 5757                        .map(|member| build_serialized_pane_group(member, window, cx))
 5758                        .collect::<Vec<_>>(),
 5759                    flexes: Some(flexes.lock().clone()),
 5760                },
 5761                Member::Pane(pane_handle) => {
 5762                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5763                }
 5764            }
 5765        }
 5766
 5767        fn build_serialized_docks(
 5768            this: &Workspace,
 5769            window: &mut Window,
 5770            cx: &mut App,
 5771        ) -> DockStructure {
 5772            let left_dock = this.left_dock.read(cx);
 5773            let left_visible = left_dock.is_open();
 5774            let left_active_panel = left_dock
 5775                .active_panel()
 5776                .map(|panel| panel.persistent_name().to_string());
 5777            let left_dock_zoom = left_dock
 5778                .active_panel()
 5779                .map(|panel| panel.is_zoomed(window, cx))
 5780                .unwrap_or(false);
 5781
 5782            let right_dock = this.right_dock.read(cx);
 5783            let right_visible = right_dock.is_open();
 5784            let right_active_panel = right_dock
 5785                .active_panel()
 5786                .map(|panel| panel.persistent_name().to_string());
 5787            let right_dock_zoom = right_dock
 5788                .active_panel()
 5789                .map(|panel| panel.is_zoomed(window, cx))
 5790                .unwrap_or(false);
 5791
 5792            let bottom_dock = this.bottom_dock.read(cx);
 5793            let bottom_visible = bottom_dock.is_open();
 5794            let bottom_active_panel = bottom_dock
 5795                .active_panel()
 5796                .map(|panel| panel.persistent_name().to_string());
 5797            let bottom_dock_zoom = bottom_dock
 5798                .active_panel()
 5799                .map(|panel| panel.is_zoomed(window, cx))
 5800                .unwrap_or(false);
 5801
 5802            DockStructure {
 5803                left: DockData {
 5804                    visible: left_visible,
 5805                    active_panel: left_active_panel,
 5806                    zoom: left_dock_zoom,
 5807                },
 5808                right: DockData {
 5809                    visible: right_visible,
 5810                    active_panel: right_active_panel,
 5811                    zoom: right_dock_zoom,
 5812                },
 5813                bottom: DockData {
 5814                    visible: bottom_visible,
 5815                    active_panel: bottom_active_panel,
 5816                    zoom: bottom_dock_zoom,
 5817                },
 5818            }
 5819        }
 5820
 5821        match self.serialize_workspace_location(cx) {
 5822            WorkspaceLocation::Location(location, paths) => {
 5823                let breakpoints = self.project.update(cx, |project, cx| {
 5824                    project
 5825                        .breakpoint_store()
 5826                        .read(cx)
 5827                        .all_source_breakpoints(cx)
 5828                });
 5829                let user_toolchains = self
 5830                    .project
 5831                    .read(cx)
 5832                    .user_toolchains(cx)
 5833                    .unwrap_or_default();
 5834
 5835                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5836                let docks = build_serialized_docks(self, window, cx);
 5837                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5838
 5839                let serialized_workspace = SerializedWorkspace {
 5840                    id: database_id,
 5841                    location,
 5842                    paths,
 5843                    center_group,
 5844                    window_bounds,
 5845                    display: Default::default(),
 5846                    docks,
 5847                    centered_layout: self.centered_layout,
 5848                    session_id: self.session_id.clone(),
 5849                    breakpoints,
 5850                    window_id: Some(window.window_handle().window_id().as_u64()),
 5851                    user_toolchains,
 5852                };
 5853
 5854                window.spawn(cx, async move |_| {
 5855                    persistence::DB.save_workspace(serialized_workspace).await;
 5856                })
 5857            }
 5858            WorkspaceLocation::DetachFromSession => {
 5859                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5860                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5861                window.spawn(cx, async move |_| {
 5862                    persistence::DB
 5863                        .set_window_open_status(
 5864                            database_id,
 5865                            window_bounds,
 5866                            display.unwrap_or_default(),
 5867                        )
 5868                        .await
 5869                        .log_err();
 5870                    persistence::DB
 5871                        .set_session_id(database_id, None)
 5872                        .await
 5873                        .log_err();
 5874                })
 5875            }
 5876            WorkspaceLocation::None => Task::ready(()),
 5877        }
 5878    }
 5879
 5880    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5881        let paths = PathList::new(&self.root_paths(cx));
 5882        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5883            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5884        } else if self.project.read(cx).is_local() {
 5885            if !paths.is_empty() {
 5886                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5887            } else {
 5888                WorkspaceLocation::DetachFromSession
 5889            }
 5890        } else {
 5891            WorkspaceLocation::None
 5892        }
 5893    }
 5894
 5895    fn update_history(&self, cx: &mut App) {
 5896        let Some(id) = self.database_id() else {
 5897            return;
 5898        };
 5899        if !self.project.read(cx).is_local() {
 5900            return;
 5901        }
 5902        if let Some(manager) = HistoryManager::global(cx) {
 5903            let paths = PathList::new(&self.root_paths(cx));
 5904            manager.update(cx, |this, cx| {
 5905                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5906            });
 5907        }
 5908    }
 5909
 5910    async fn serialize_items(
 5911        this: &WeakEntity<Self>,
 5912        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5913        cx: &mut AsyncWindowContext,
 5914    ) -> Result<()> {
 5915        const CHUNK_SIZE: usize = 200;
 5916
 5917        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5918
 5919        while let Some(items_received) = serializable_items.next().await {
 5920            let unique_items =
 5921                items_received
 5922                    .into_iter()
 5923                    .fold(HashMap::default(), |mut acc, item| {
 5924                        acc.entry(item.item_id()).or_insert(item);
 5925                        acc
 5926                    });
 5927
 5928            // We use into_iter() here so that the references to the items are moved into
 5929            // the tasks and not kept alive while we're sleeping.
 5930            for (_, item) in unique_items.into_iter() {
 5931                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5932                    item.serialize(workspace, false, window, cx)
 5933                }) {
 5934                    cx.background_spawn(async move { task.await.log_err() })
 5935                        .detach();
 5936                }
 5937            }
 5938
 5939            cx.background_executor()
 5940                .timer(SERIALIZATION_THROTTLE_TIME)
 5941                .await;
 5942        }
 5943
 5944        Ok(())
 5945    }
 5946
 5947    pub(crate) fn enqueue_item_serialization(
 5948        &mut self,
 5949        item: Box<dyn SerializableItemHandle>,
 5950    ) -> Result<()> {
 5951        self.serializable_items_tx
 5952            .unbounded_send(item)
 5953            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5954    }
 5955
 5956    pub(crate) fn load_workspace(
 5957        serialized_workspace: SerializedWorkspace,
 5958        paths_to_open: Vec<Option<ProjectPath>>,
 5959        window: &mut Window,
 5960        cx: &mut Context<Workspace>,
 5961    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5962        cx.spawn_in(window, async move |workspace, cx| {
 5963            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5964
 5965            let mut center_group = None;
 5966            let mut center_items = None;
 5967
 5968            // Traverse the splits tree and add to things
 5969            if let Some((group, active_pane, items)) = serialized_workspace
 5970                .center_group
 5971                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5972                .await
 5973            {
 5974                center_items = Some(items);
 5975                center_group = Some((group, active_pane))
 5976            }
 5977
 5978            let mut items_by_project_path = HashMap::default();
 5979            let mut item_ids_by_kind = HashMap::default();
 5980            let mut all_deserialized_items = Vec::default();
 5981            cx.update(|_, cx| {
 5982                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5983                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5984                        item_ids_by_kind
 5985                            .entry(serializable_item_handle.serialized_item_kind())
 5986                            .or_insert(Vec::new())
 5987                            .push(item.item_id().as_u64() as ItemId);
 5988                    }
 5989
 5990                    if let Some(project_path) = item.project_path(cx) {
 5991                        items_by_project_path.insert(project_path, item.clone());
 5992                    }
 5993                    all_deserialized_items.push(item);
 5994                }
 5995            })?;
 5996
 5997            let opened_items = paths_to_open
 5998                .into_iter()
 5999                .map(|path_to_open| {
 6000                    path_to_open
 6001                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6002                })
 6003                .collect::<Vec<_>>();
 6004
 6005            // Remove old panes from workspace panes list
 6006            workspace.update_in(cx, |workspace, window, cx| {
 6007                if let Some((center_group, active_pane)) = center_group {
 6008                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6009
 6010                    // Swap workspace center group
 6011                    workspace.center = PaneGroup::with_root(center_group);
 6012                    workspace.center.set_is_center(true);
 6013                    workspace.center.mark_positions(cx);
 6014
 6015                    if let Some(active_pane) = active_pane {
 6016                        workspace.set_active_pane(&active_pane, window, cx);
 6017                        cx.focus_self(window);
 6018                    } else {
 6019                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6020                    }
 6021                }
 6022
 6023                let docks = serialized_workspace.docks;
 6024
 6025                for (dock, serialized_dock) in [
 6026                    (&mut workspace.right_dock, docks.right),
 6027                    (&mut workspace.left_dock, docks.left),
 6028                    (&mut workspace.bottom_dock, docks.bottom),
 6029                ]
 6030                .iter_mut()
 6031                {
 6032                    dock.update(cx, |dock, cx| {
 6033                        dock.serialized_dock = Some(serialized_dock.clone());
 6034                        dock.restore_state(window, cx);
 6035                    });
 6036                }
 6037
 6038                cx.notify();
 6039            })?;
 6040
 6041            let _ = project
 6042                .update(cx, |project, cx| {
 6043                    project
 6044                        .breakpoint_store()
 6045                        .update(cx, |breakpoint_store, cx| {
 6046                            breakpoint_store
 6047                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6048                        })
 6049                })
 6050                .await;
 6051
 6052            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6053            // after loading the items, we might have different items and in order to avoid
 6054            // the database filling up, we delete items that haven't been loaded now.
 6055            //
 6056            // The items that have been loaded, have been saved after they've been added to the workspace.
 6057            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6058                item_ids_by_kind
 6059                    .into_iter()
 6060                    .map(|(item_kind, loaded_items)| {
 6061                        SerializableItemRegistry::cleanup(
 6062                            item_kind,
 6063                            serialized_workspace.id,
 6064                            loaded_items,
 6065                            window,
 6066                            cx,
 6067                        )
 6068                        .log_err()
 6069                    })
 6070                    .collect::<Vec<_>>()
 6071            })?;
 6072
 6073            futures::future::join_all(clean_up_tasks).await;
 6074
 6075            workspace
 6076                .update_in(cx, |workspace, window, cx| {
 6077                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6078                    workspace.serialize_workspace_internal(window, cx).detach();
 6079
 6080                    // Ensure that we mark the window as edited if we did load dirty items
 6081                    workspace.update_window_edited(window, cx);
 6082                })
 6083                .ok();
 6084
 6085            Ok(opened_items)
 6086        })
 6087    }
 6088
 6089    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6090        self.add_workspace_actions_listeners(div, window, cx)
 6091            .on_action(cx.listener(
 6092                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6093                    for action in &action_sequence.0 {
 6094                        window.dispatch_action(action.boxed_clone(), cx);
 6095                    }
 6096                },
 6097            ))
 6098            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6099            .on_action(cx.listener(Self::close_all_items_and_panes))
 6100            .on_action(cx.listener(Self::save_all))
 6101            .on_action(cx.listener(Self::send_keystrokes))
 6102            .on_action(cx.listener(Self::add_folder_to_project))
 6103            .on_action(cx.listener(Self::follow_next_collaborator))
 6104            .on_action(cx.listener(Self::close_window))
 6105            .on_action(cx.listener(Self::activate_pane_at_index))
 6106            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6107            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6108            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6109            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6110                let pane = workspace.active_pane().clone();
 6111                workspace.unfollow_in_pane(&pane, window, cx);
 6112            }))
 6113            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6114                workspace
 6115                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6116                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6117            }))
 6118            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6119                workspace
 6120                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6121                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6122            }))
 6123            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6124                workspace
 6125                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6126                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6127            }))
 6128            .on_action(
 6129                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6130                    workspace.activate_previous_pane(window, cx)
 6131                }),
 6132            )
 6133            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6134                workspace.activate_next_pane(window, cx)
 6135            }))
 6136            .on_action(
 6137                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6138                    workspace.activate_next_window(cx)
 6139                }),
 6140            )
 6141            .on_action(
 6142                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6143                    workspace.activate_previous_window(cx)
 6144                }),
 6145            )
 6146            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6147                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6148            }))
 6149            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6150                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6151            }))
 6152            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6153                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6154            }))
 6155            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6156                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6157            }))
 6158            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6159                workspace.activate_next_pane(window, cx)
 6160            }))
 6161            .on_action(cx.listener(
 6162                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6163                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6164                },
 6165            ))
 6166            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6167                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6168            }))
 6169            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6170                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6171            }))
 6172            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6173                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6174            }))
 6175            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6176                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6177            }))
 6178            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6179                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6180                    SplitDirection::Down,
 6181                    SplitDirection::Up,
 6182                    SplitDirection::Right,
 6183                    SplitDirection::Left,
 6184                ];
 6185                for dir in DIRECTION_PRIORITY {
 6186                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6187                        workspace.swap_pane_in_direction(dir, cx);
 6188                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6189                        break;
 6190                    }
 6191                }
 6192            }))
 6193            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6194                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6195            }))
 6196            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6197                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6198            }))
 6199            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6200                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6201            }))
 6202            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6203                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6204            }))
 6205            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6206                this.toggle_dock(DockPosition::Left, window, cx);
 6207            }))
 6208            .on_action(cx.listener(
 6209                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6210                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6211                },
 6212            ))
 6213            .on_action(cx.listener(
 6214                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6215                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6216                },
 6217            ))
 6218            .on_action(cx.listener(
 6219                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6220                    if !workspace.close_active_dock(window, cx) {
 6221                        cx.propagate();
 6222                    }
 6223                },
 6224            ))
 6225            .on_action(
 6226                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6227                    workspace.close_all_docks(window, cx);
 6228                }),
 6229            )
 6230            .on_action(cx.listener(Self::toggle_all_docks))
 6231            .on_action(cx.listener(
 6232                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6233                    workspace.clear_all_notifications(cx);
 6234                },
 6235            ))
 6236            .on_action(cx.listener(
 6237                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6238                    workspace.clear_navigation_history(window, cx);
 6239                },
 6240            ))
 6241            .on_action(cx.listener(
 6242                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6243                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6244                        workspace.suppress_notification(&notification_id, cx);
 6245                    }
 6246                },
 6247            ))
 6248            .on_action(cx.listener(
 6249                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6250                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6251                },
 6252            ))
 6253            .on_action(
 6254                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6255                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6256                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6257                            trusted_worktrees.clear_trusted_paths()
 6258                        });
 6259                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6260                        cx.spawn(async move |_, cx| {
 6261                            if clear_task.await.log_err().is_some() {
 6262                                cx.update(|cx| reload(cx));
 6263                            }
 6264                        })
 6265                        .detach();
 6266                    }
 6267                }),
 6268            )
 6269            .on_action(cx.listener(
 6270                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6271                    workspace.reopen_closed_item(window, cx).detach();
 6272                },
 6273            ))
 6274            .on_action(cx.listener(
 6275                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6276                    for dock in workspace.all_docks() {
 6277                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6278                            let Some(panel) = dock.read(cx).active_panel() else {
 6279                                return;
 6280                            };
 6281
 6282                            // Set to `None`, then the size will fall back to the default.
 6283                            panel.clone().set_size(None, window, cx);
 6284
 6285                            return;
 6286                        }
 6287                    }
 6288                },
 6289            ))
 6290            .on_action(cx.listener(
 6291                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6292                    for dock in workspace.all_docks() {
 6293                        if let Some(panel) = dock.read(cx).visible_panel() {
 6294                            // Set to `None`, then the size will fall back to the default.
 6295                            panel.clone().set_size(None, window, cx);
 6296                        }
 6297                    }
 6298                },
 6299            ))
 6300            .on_action(cx.listener(
 6301                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6302                    adjust_active_dock_size_by_px(
 6303                        px_with_ui_font_fallback(act.px, cx),
 6304                        workspace,
 6305                        window,
 6306                        cx,
 6307                    );
 6308                },
 6309            ))
 6310            .on_action(cx.listener(
 6311                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6312                    adjust_active_dock_size_by_px(
 6313                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6314                        workspace,
 6315                        window,
 6316                        cx,
 6317                    );
 6318                },
 6319            ))
 6320            .on_action(cx.listener(
 6321                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6322                    adjust_open_docks_size_by_px(
 6323                        px_with_ui_font_fallback(act.px, cx),
 6324                        workspace,
 6325                        window,
 6326                        cx,
 6327                    );
 6328                },
 6329            ))
 6330            .on_action(cx.listener(
 6331                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6332                    adjust_open_docks_size_by_px(
 6333                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6334                        workspace,
 6335                        window,
 6336                        cx,
 6337                    );
 6338                },
 6339            ))
 6340            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6341            .on_action(cx.listener(
 6342                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6343                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6344                        let dock = active_dock.read(cx);
 6345                        if let Some(active_panel) = dock.active_panel() {
 6346                            if active_panel.pane(cx).is_none() {
 6347                                let mut recent_pane: Option<Entity<Pane>> = None;
 6348                                let mut recent_timestamp = 0;
 6349                                for pane_handle in workspace.panes() {
 6350                                    let pane = pane_handle.read(cx);
 6351                                    for entry in pane.activation_history() {
 6352                                        if entry.timestamp > recent_timestamp {
 6353                                            recent_timestamp = entry.timestamp;
 6354                                            recent_pane = Some(pane_handle.clone());
 6355                                        }
 6356                                    }
 6357                                }
 6358
 6359                                if let Some(pane) = recent_pane {
 6360                                    pane.update(cx, |pane, cx| {
 6361                                        let current_index = pane.active_item_index();
 6362                                        let items_len = pane.items_len();
 6363                                        if items_len > 0 {
 6364                                            let next_index = if current_index + 1 < items_len {
 6365                                                current_index + 1
 6366                                            } else {
 6367                                                0
 6368                                            };
 6369                                            pane.activate_item(
 6370                                                next_index, false, false, window, cx,
 6371                                            );
 6372                                        }
 6373                                    });
 6374                                    return;
 6375                                }
 6376                            }
 6377                        }
 6378                    }
 6379                    cx.propagate();
 6380                },
 6381            ))
 6382            .on_action(cx.listener(
 6383                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6384                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6385                        let dock = active_dock.read(cx);
 6386                        if let Some(active_panel) = dock.active_panel() {
 6387                            if active_panel.pane(cx).is_none() {
 6388                                let mut recent_pane: Option<Entity<Pane>> = None;
 6389                                let mut recent_timestamp = 0;
 6390                                for pane_handle in workspace.panes() {
 6391                                    let pane = pane_handle.read(cx);
 6392                                    for entry in pane.activation_history() {
 6393                                        if entry.timestamp > recent_timestamp {
 6394                                            recent_timestamp = entry.timestamp;
 6395                                            recent_pane = Some(pane_handle.clone());
 6396                                        }
 6397                                    }
 6398                                }
 6399
 6400                                if let Some(pane) = recent_pane {
 6401                                    pane.update(cx, |pane, cx| {
 6402                                        let current_index = pane.active_item_index();
 6403                                        let items_len = pane.items_len();
 6404                                        if items_len > 0 {
 6405                                            let prev_index = if current_index > 0 {
 6406                                                current_index - 1
 6407                                            } else {
 6408                                                items_len.saturating_sub(1)
 6409                                            };
 6410                                            pane.activate_item(
 6411                                                prev_index, false, false, window, cx,
 6412                                            );
 6413                                        }
 6414                                    });
 6415                                    return;
 6416                                }
 6417                            }
 6418                        }
 6419                    }
 6420                    cx.propagate();
 6421                },
 6422            ))
 6423            .on_action(
 6424                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6425                    let pane = workspace.active_pane().clone();
 6426                    if let Some(item) = pane.read(cx).active_item() {
 6427                        item.toggle_read_only(window, cx);
 6428                    }
 6429                }),
 6430            )
 6431            .on_action(cx.listener(Workspace::cancel))
 6432    }
 6433
 6434    #[cfg(any(test, feature = "test-support"))]
 6435    pub fn set_random_database_id(&mut self) {
 6436        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6437    }
 6438
 6439    #[cfg(any(test, feature = "test-support"))]
 6440    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6441        use node_runtime::NodeRuntime;
 6442        use session::Session;
 6443
 6444        let client = project.read(cx).client();
 6445        let user_store = project.read(cx).user_store();
 6446        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6447        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6448        window.activate_window();
 6449        let app_state = Arc::new(AppState {
 6450            languages: project.read(cx).languages().clone(),
 6451            workspace_store,
 6452            client,
 6453            user_store,
 6454            fs: project.read(cx).fs().clone(),
 6455            build_window_options: |_, _| Default::default(),
 6456            node_runtime: NodeRuntime::unavailable(),
 6457            session,
 6458        });
 6459        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6460        workspace
 6461            .active_pane
 6462            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6463        workspace
 6464    }
 6465
 6466    pub fn register_action<A: Action>(
 6467        &mut self,
 6468        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6469    ) -> &mut Self {
 6470        let callback = Arc::new(callback);
 6471
 6472        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6473            let callback = callback.clone();
 6474            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6475                (callback)(workspace, event, window, cx)
 6476            }))
 6477        }));
 6478        self
 6479    }
 6480    pub fn register_action_renderer(
 6481        &mut self,
 6482        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6483    ) -> &mut Self {
 6484        self.workspace_actions.push(Box::new(callback));
 6485        self
 6486    }
 6487
 6488    fn add_workspace_actions_listeners(
 6489        &self,
 6490        mut div: Div,
 6491        window: &mut Window,
 6492        cx: &mut Context<Self>,
 6493    ) -> Div {
 6494        for action in self.workspace_actions.iter() {
 6495            div = (action)(div, self, window, cx)
 6496        }
 6497        div
 6498    }
 6499
 6500    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6501        self.modal_layer.read(cx).has_active_modal()
 6502    }
 6503
 6504    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6505        self.modal_layer.read(cx).active_modal()
 6506    }
 6507
 6508    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6509    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6510    /// If no modal is active, the new modal will be shown.
 6511    ///
 6512    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6513    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6514    /// will not be shown.
 6515    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6516    where
 6517        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6518    {
 6519        self.modal_layer.update(cx, |modal_layer, cx| {
 6520            modal_layer.toggle_modal(window, cx, build)
 6521        })
 6522    }
 6523
 6524    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6525        self.modal_layer
 6526            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6527    }
 6528
 6529    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6530        self.toast_layer
 6531            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6532    }
 6533
 6534    pub fn toggle_centered_layout(
 6535        &mut self,
 6536        _: &ToggleCenteredLayout,
 6537        _: &mut Window,
 6538        cx: &mut Context<Self>,
 6539    ) {
 6540        self.centered_layout = !self.centered_layout;
 6541        if let Some(database_id) = self.database_id() {
 6542            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6543                .detach_and_log_err(cx);
 6544        }
 6545        cx.notify();
 6546    }
 6547
 6548    fn adjust_padding(padding: Option<f32>) -> f32 {
 6549        padding
 6550            .unwrap_or(CenteredPaddingSettings::default().0)
 6551            .clamp(
 6552                CenteredPaddingSettings::MIN_PADDING,
 6553                CenteredPaddingSettings::MAX_PADDING,
 6554            )
 6555    }
 6556
 6557    fn render_dock(
 6558        &self,
 6559        position: DockPosition,
 6560        dock: &Entity<Dock>,
 6561        window: &mut Window,
 6562        cx: &mut App,
 6563    ) -> Option<Div> {
 6564        if self.zoomed_position == Some(position) {
 6565            return None;
 6566        }
 6567
 6568        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6569            let pane = panel.pane(cx)?;
 6570            let follower_states = &self.follower_states;
 6571            leader_border_for_pane(follower_states, &pane, window, cx)
 6572        });
 6573
 6574        Some(
 6575            div()
 6576                .flex()
 6577                .flex_none()
 6578                .overflow_hidden()
 6579                .child(dock.clone())
 6580                .children(leader_border),
 6581        )
 6582    }
 6583
 6584    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6585        window.root().flatten()
 6586    }
 6587
 6588    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6589        self.zoomed.as_ref()
 6590    }
 6591
 6592    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6593        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6594            return;
 6595        };
 6596        let windows = cx.windows();
 6597        let next_window =
 6598            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6599                || {
 6600                    windows
 6601                        .iter()
 6602                        .cycle()
 6603                        .skip_while(|window| window.window_id() != current_window_id)
 6604                        .nth(1)
 6605                },
 6606            );
 6607
 6608        if let Some(window) = next_window {
 6609            window
 6610                .update(cx, |_, window, _| window.activate_window())
 6611                .ok();
 6612        }
 6613    }
 6614
 6615    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6616        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6617            return;
 6618        };
 6619        let windows = cx.windows();
 6620        let prev_window =
 6621            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6622                || {
 6623                    windows
 6624                        .iter()
 6625                        .rev()
 6626                        .cycle()
 6627                        .skip_while(|window| window.window_id() != current_window_id)
 6628                        .nth(1)
 6629                },
 6630            );
 6631
 6632        if let Some(window) = prev_window {
 6633            window
 6634                .update(cx, |_, window, _| window.activate_window())
 6635                .ok();
 6636        }
 6637    }
 6638
 6639    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6640        if cx.stop_active_drag(window) {
 6641        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6642            dismiss_app_notification(&notification_id, cx);
 6643        } else {
 6644            cx.propagate();
 6645        }
 6646    }
 6647
 6648    fn adjust_dock_size_by_px(
 6649        &mut self,
 6650        panel_size: Pixels,
 6651        dock_pos: DockPosition,
 6652        px: Pixels,
 6653        window: &mut Window,
 6654        cx: &mut Context<Self>,
 6655    ) {
 6656        match dock_pos {
 6657            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6658            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6659            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6660        }
 6661    }
 6662
 6663    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6664        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6665
 6666        self.left_dock.update(cx, |left_dock, cx| {
 6667            if WorkspaceSettings::get_global(cx)
 6668                .resize_all_panels_in_dock
 6669                .contains(&DockPosition::Left)
 6670            {
 6671                left_dock.resize_all_panels(Some(size), window, cx);
 6672            } else {
 6673                left_dock.resize_active_panel(Some(size), window, cx);
 6674            }
 6675        });
 6676        self.clamp_utility_pane_widths(window, cx);
 6677    }
 6678
 6679    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6680        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6681        self.left_dock.read_with(cx, |left_dock, cx| {
 6682            let left_dock_size = left_dock
 6683                .active_panel_size(window, cx)
 6684                .unwrap_or(Pixels::ZERO);
 6685            if left_dock_size + size > self.bounds.right() {
 6686                size = self.bounds.right() - left_dock_size
 6687            }
 6688        });
 6689        self.right_dock.update(cx, |right_dock, cx| {
 6690            if WorkspaceSettings::get_global(cx)
 6691                .resize_all_panels_in_dock
 6692                .contains(&DockPosition::Right)
 6693            {
 6694                right_dock.resize_all_panels(Some(size), window, cx);
 6695            } else {
 6696                right_dock.resize_active_panel(Some(size), window, cx);
 6697            }
 6698        });
 6699        self.clamp_utility_pane_widths(window, cx);
 6700    }
 6701
 6702    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6703        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6704        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6705            if WorkspaceSettings::get_global(cx)
 6706                .resize_all_panels_in_dock
 6707                .contains(&DockPosition::Bottom)
 6708            {
 6709                bottom_dock.resize_all_panels(Some(size), window, cx);
 6710            } else {
 6711                bottom_dock.resize_active_panel(Some(size), window, cx);
 6712            }
 6713        });
 6714        self.clamp_utility_pane_widths(window, cx);
 6715    }
 6716
 6717    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6718        let left_dock_width = self
 6719            .left_dock
 6720            .read(cx)
 6721            .active_panel_size(window, cx)
 6722            .unwrap_or(px(0.0));
 6723        let right_dock_width = self
 6724            .right_dock
 6725            .read(cx)
 6726            .active_panel_size(window, cx)
 6727            .unwrap_or(px(0.0));
 6728        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6729        center_pane_width - px(10.0)
 6730    }
 6731
 6732    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6733        let max_width = self.max_utility_pane_width(window, cx);
 6734
 6735        // Clamp left slot utility pane if it exists
 6736        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6737            let current_width = handle.width(cx);
 6738            if current_width > max_width {
 6739                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6740            }
 6741        }
 6742
 6743        // Clamp right slot utility pane if it exists
 6744        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6745            let current_width = handle.width(cx);
 6746            if current_width > max_width {
 6747                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6748            }
 6749        }
 6750    }
 6751
 6752    fn toggle_edit_predictions_all_files(
 6753        &mut self,
 6754        _: &ToggleEditPrediction,
 6755        _window: &mut Window,
 6756        cx: &mut Context<Self>,
 6757    ) {
 6758        let fs = self.project().read(cx).fs().clone();
 6759        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6760        update_settings_file(fs, cx, move |file, _| {
 6761            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6762        });
 6763    }
 6764
 6765    pub fn show_worktree_trust_security_modal(
 6766        &mut self,
 6767        toggle: bool,
 6768        window: &mut Window,
 6769        cx: &mut Context<Self>,
 6770    ) {
 6771        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6772            if toggle {
 6773                security_modal.update(cx, |security_modal, cx| {
 6774                    security_modal.dismiss(cx);
 6775                })
 6776            } else {
 6777                security_modal.update(cx, |security_modal, cx| {
 6778                    security_modal.refresh_restricted_paths(cx);
 6779                });
 6780            }
 6781        } else {
 6782            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6783                .map(|trusted_worktrees| {
 6784                    trusted_worktrees
 6785                        .read(cx)
 6786                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6787                })
 6788                .unwrap_or(false);
 6789            if has_restricted_worktrees {
 6790                let project = self.project().read(cx);
 6791                let remote_host = project
 6792                    .remote_connection_options(cx)
 6793                    .map(RemoteHostLocation::from);
 6794                let worktree_store = project.worktree_store().downgrade();
 6795                self.toggle_modal(window, cx, |_, cx| {
 6796                    SecurityModal::new(worktree_store, remote_host, cx)
 6797                });
 6798            }
 6799        }
 6800    }
 6801}
 6802
 6803fn leader_border_for_pane(
 6804    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6805    pane: &Entity<Pane>,
 6806    _: &Window,
 6807    cx: &App,
 6808) -> Option<Div> {
 6809    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6810        if state.pane() == pane {
 6811            Some((*leader_id, state))
 6812        } else {
 6813            None
 6814        }
 6815    })?;
 6816
 6817    let mut leader_color = match leader_id {
 6818        CollaboratorId::PeerId(leader_peer_id) => {
 6819            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6820            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6821
 6822            cx.theme()
 6823                .players()
 6824                .color_for_participant(leader.participant_index.0)
 6825                .cursor
 6826        }
 6827        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6828    };
 6829    leader_color.fade_out(0.3);
 6830    Some(
 6831        div()
 6832            .absolute()
 6833            .size_full()
 6834            .left_0()
 6835            .top_0()
 6836            .border_2()
 6837            .border_color(leader_color),
 6838    )
 6839}
 6840
 6841fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6842    ZED_WINDOW_POSITION
 6843        .zip(*ZED_WINDOW_SIZE)
 6844        .map(|(position, size)| Bounds {
 6845            origin: position,
 6846            size,
 6847        })
 6848}
 6849
 6850fn open_items(
 6851    serialized_workspace: Option<SerializedWorkspace>,
 6852    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6853    window: &mut Window,
 6854    cx: &mut Context<Workspace>,
 6855) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6856    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6857        Workspace::load_workspace(
 6858            serialized_workspace,
 6859            project_paths_to_open
 6860                .iter()
 6861                .map(|(_, project_path)| project_path)
 6862                .cloned()
 6863                .collect(),
 6864            window,
 6865            cx,
 6866        )
 6867    });
 6868
 6869    cx.spawn_in(window, async move |workspace, cx| {
 6870        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6871
 6872        if let Some(restored_items) = restored_items {
 6873            let restored_items = restored_items.await?;
 6874
 6875            let restored_project_paths = restored_items
 6876                .iter()
 6877                .filter_map(|item| {
 6878                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6879                        .ok()
 6880                        .flatten()
 6881                })
 6882                .collect::<HashSet<_>>();
 6883
 6884            for restored_item in restored_items {
 6885                opened_items.push(restored_item.map(Ok));
 6886            }
 6887
 6888            project_paths_to_open
 6889                .iter_mut()
 6890                .for_each(|(_, project_path)| {
 6891                    if let Some(project_path_to_open) = project_path
 6892                        && restored_project_paths.contains(project_path_to_open)
 6893                    {
 6894                        *project_path = None;
 6895                    }
 6896                });
 6897        } else {
 6898            for _ in 0..project_paths_to_open.len() {
 6899                opened_items.push(None);
 6900            }
 6901        }
 6902        assert!(opened_items.len() == project_paths_to_open.len());
 6903
 6904        let tasks =
 6905            project_paths_to_open
 6906                .into_iter()
 6907                .enumerate()
 6908                .map(|(ix, (abs_path, project_path))| {
 6909                    let workspace = workspace.clone();
 6910                    cx.spawn(async move |cx| {
 6911                        let file_project_path = project_path?;
 6912                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6913                            workspace.project().update(cx, |project, cx| {
 6914                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6915                            })
 6916                        });
 6917
 6918                        // We only want to open file paths here. If one of the items
 6919                        // here is a directory, it was already opened further above
 6920                        // with a `find_or_create_worktree`.
 6921                        if let Ok(task) = abs_path_task
 6922                            && task.await.is_none_or(|p| p.is_file())
 6923                        {
 6924                            return Some((
 6925                                ix,
 6926                                workspace
 6927                                    .update_in(cx, |workspace, window, cx| {
 6928                                        workspace.open_path(
 6929                                            file_project_path,
 6930                                            None,
 6931                                            true,
 6932                                            window,
 6933                                            cx,
 6934                                        )
 6935                                    })
 6936                                    .log_err()?
 6937                                    .await,
 6938                            ));
 6939                        }
 6940                        None
 6941                    })
 6942                });
 6943
 6944        let tasks = tasks.collect::<Vec<_>>();
 6945
 6946        let tasks = futures::future::join_all(tasks);
 6947        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6948            opened_items[ix] = Some(path_open_result);
 6949        }
 6950
 6951        Ok(opened_items)
 6952    })
 6953}
 6954
 6955enum ActivateInDirectionTarget {
 6956    Pane(Entity<Pane>),
 6957    Dock(Entity<Dock>),
 6958}
 6959
 6960fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6961    workspace
 6962        .update(cx, |workspace, _, cx| {
 6963            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6964                struct DatabaseFailedNotification;
 6965
 6966                workspace.show_notification(
 6967                    NotificationId::unique::<DatabaseFailedNotification>(),
 6968                    cx,
 6969                    |cx| {
 6970                        cx.new(|cx| {
 6971                            MessageNotification::new("Failed to load the database file.", cx)
 6972                                .primary_message("File an Issue")
 6973                                .primary_icon(IconName::Plus)
 6974                                .primary_on_click(|window, cx| {
 6975                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6976                                })
 6977                        })
 6978                    },
 6979                );
 6980            }
 6981        })
 6982        .log_err();
 6983}
 6984
 6985fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6986    if val == 0 {
 6987        ThemeSettings::get_global(cx).ui_font_size(cx)
 6988    } else {
 6989        px(val as f32)
 6990    }
 6991}
 6992
 6993fn adjust_active_dock_size_by_px(
 6994    px: Pixels,
 6995    workspace: &mut Workspace,
 6996    window: &mut Window,
 6997    cx: &mut Context<Workspace>,
 6998) {
 6999    let Some(active_dock) = workspace
 7000        .all_docks()
 7001        .into_iter()
 7002        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7003    else {
 7004        return;
 7005    };
 7006    let dock = active_dock.read(cx);
 7007    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7008        return;
 7009    };
 7010    let dock_pos = dock.position();
 7011    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7012}
 7013
 7014fn adjust_open_docks_size_by_px(
 7015    px: Pixels,
 7016    workspace: &mut Workspace,
 7017    window: &mut Window,
 7018    cx: &mut Context<Workspace>,
 7019) {
 7020    let docks = workspace
 7021        .all_docks()
 7022        .into_iter()
 7023        .filter_map(|dock| {
 7024            if dock.read(cx).is_open() {
 7025                let dock = dock.read(cx);
 7026                let panel_size = dock.active_panel_size(window, cx)?;
 7027                let dock_pos = dock.position();
 7028                Some((panel_size, dock_pos, px))
 7029            } else {
 7030                None
 7031            }
 7032        })
 7033        .collect::<Vec<_>>();
 7034
 7035    docks
 7036        .into_iter()
 7037        .for_each(|(panel_size, dock_pos, offset)| {
 7038            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7039        });
 7040}
 7041
 7042impl Focusable for Workspace {
 7043    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7044        self.active_pane.focus_handle(cx)
 7045    }
 7046}
 7047
 7048#[derive(Clone)]
 7049struct DraggedDock(DockPosition);
 7050
 7051impl Render for DraggedDock {
 7052    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7053        gpui::Empty
 7054    }
 7055}
 7056
 7057impl Render for Workspace {
 7058    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7059        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7060        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7061            log::info!("Rendered first frame");
 7062        }
 7063        let mut context = KeyContext::new_with_defaults();
 7064        context.add("Workspace");
 7065        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 7066        if let Some(status) = self
 7067            .debugger_provider
 7068            .as_ref()
 7069            .and_then(|provider| provider.active_thread_state(cx))
 7070        {
 7071            match status {
 7072                ThreadStatus::Running | ThreadStatus::Stepping => {
 7073                    context.add("debugger_running");
 7074                }
 7075                ThreadStatus::Stopped => context.add("debugger_stopped"),
 7076                ThreadStatus::Exited | ThreadStatus::Ended => {}
 7077            }
 7078        }
 7079
 7080        if self.left_dock.read(cx).is_open() {
 7081            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 7082                context.set("left_dock", active_panel.panel_key());
 7083            }
 7084        }
 7085
 7086        if self.right_dock.read(cx).is_open() {
 7087            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 7088                context.set("right_dock", active_panel.panel_key());
 7089            }
 7090        }
 7091
 7092        if self.bottom_dock.read(cx).is_open() {
 7093            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 7094                context.set("bottom_dock", active_panel.panel_key());
 7095            }
 7096        }
 7097
 7098        let centered_layout = self.centered_layout
 7099            && self.center.panes().len() == 1
 7100            && self.active_item(cx).is_some();
 7101        let render_padding = |size| {
 7102            (size > 0.0).then(|| {
 7103                div()
 7104                    .h_full()
 7105                    .w(relative(size))
 7106                    .bg(cx.theme().colors().editor_background)
 7107                    .border_color(cx.theme().colors().pane_group_border)
 7108            })
 7109        };
 7110        let paddings = if centered_layout {
 7111            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7112            (
 7113                render_padding(Self::adjust_padding(
 7114                    settings.left_padding.map(|padding| padding.0),
 7115                )),
 7116                render_padding(Self::adjust_padding(
 7117                    settings.right_padding.map(|padding| padding.0),
 7118                )),
 7119            )
 7120        } else {
 7121            (None, None)
 7122        };
 7123        let ui_font = theme::setup_ui_font(window, cx);
 7124
 7125        let theme = cx.theme().clone();
 7126        let colors = theme.colors();
 7127        let notification_entities = self
 7128            .notifications
 7129            .iter()
 7130            .map(|(_, notification)| notification.entity_id())
 7131            .collect::<Vec<_>>();
 7132        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7133
 7134        client_side_decorations(
 7135            self.actions(div(), window, cx)
 7136                .key_context(context)
 7137                .relative()
 7138                .size_full()
 7139                .flex()
 7140                .flex_col()
 7141                .font(ui_font)
 7142                .gap_0()
 7143                .justify_start()
 7144                .items_start()
 7145                .text_color(colors.text)
 7146                .overflow_hidden()
 7147                .children(self.titlebar_item.clone())
 7148                .on_modifiers_changed(move |_, _, cx| {
 7149                    for &id in &notification_entities {
 7150                        cx.notify(id);
 7151                    }
 7152                })
 7153                .child(
 7154                    div()
 7155                        .size_full()
 7156                        .relative()
 7157                        .flex_1()
 7158                        .flex()
 7159                        .flex_col()
 7160                        .child(
 7161                            div()
 7162                                .id("workspace")
 7163                                .bg(colors.background)
 7164                                .relative()
 7165                                .flex_1()
 7166                                .w_full()
 7167                                .flex()
 7168                                .flex_col()
 7169                                .overflow_hidden()
 7170                                .border_t_1()
 7171                                .border_b_1()
 7172                                .border_color(colors.border)
 7173                                .child({
 7174                                    let this = cx.entity();
 7175                                    canvas(
 7176                                        move |bounds, window, cx| {
 7177                                            this.update(cx, |this, cx| {
 7178                                                let bounds_changed = this.bounds != bounds;
 7179                                                this.bounds = bounds;
 7180
 7181                                                if bounds_changed {
 7182                                                    this.left_dock.update(cx, |dock, cx| {
 7183                                                        dock.clamp_panel_size(
 7184                                                            bounds.size.width,
 7185                                                            window,
 7186                                                            cx,
 7187                                                        )
 7188                                                    });
 7189
 7190                                                    this.right_dock.update(cx, |dock, cx| {
 7191                                                        dock.clamp_panel_size(
 7192                                                            bounds.size.width,
 7193                                                            window,
 7194                                                            cx,
 7195                                                        )
 7196                                                    });
 7197
 7198                                                    this.bottom_dock.update(cx, |dock, cx| {
 7199                                                        dock.clamp_panel_size(
 7200                                                            bounds.size.height,
 7201                                                            window,
 7202                                                            cx,
 7203                                                        )
 7204                                                    });
 7205                                                }
 7206                                            })
 7207                                        },
 7208                                        |_, _, _, _| {},
 7209                                    )
 7210                                    .absolute()
 7211                                    .size_full()
 7212                                })
 7213                                .when(self.zoomed.is_none(), |this| {
 7214                                    this.on_drag_move(cx.listener(
 7215                                        move |workspace,
 7216                                              e: &DragMoveEvent<DraggedDock>,
 7217                                              window,
 7218                                              cx| {
 7219                                            if workspace.previous_dock_drag_coordinates
 7220                                                != Some(e.event.position)
 7221                                            {
 7222                                                workspace.previous_dock_drag_coordinates =
 7223                                                    Some(e.event.position);
 7224                                                match e.drag(cx).0 {
 7225                                                    DockPosition::Left => {
 7226                                                        workspace.resize_left_dock(
 7227                                                            e.event.position.x
 7228                                                                - workspace.bounds.left(),
 7229                                                            window,
 7230                                                            cx,
 7231                                                        );
 7232                                                    }
 7233                                                    DockPosition::Right => {
 7234                                                        workspace.resize_right_dock(
 7235                                                            workspace.bounds.right()
 7236                                                                - e.event.position.x,
 7237                                                            window,
 7238                                                            cx,
 7239                                                        );
 7240                                                    }
 7241                                                    DockPosition::Bottom => {
 7242                                                        workspace.resize_bottom_dock(
 7243                                                            workspace.bounds.bottom()
 7244                                                                - e.event.position.y,
 7245                                                            window,
 7246                                                            cx,
 7247                                                        );
 7248                                                    }
 7249                                                };
 7250                                                workspace.serialize_workspace(window, cx);
 7251                                            }
 7252                                        },
 7253                                    ))
 7254                                    .on_drag_move(cx.listener(
 7255                                        move |workspace,
 7256                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7257                                              window,
 7258                                              cx| {
 7259                                            let slot = e.drag(cx).0;
 7260                                            match slot {
 7261                                                UtilityPaneSlot::Left => {
 7262                                                    let left_dock_width = workspace.left_dock.read(cx)
 7263                                                        .active_panel_size(window, cx)
 7264                                                        .unwrap_or(gpui::px(0.0));
 7265                                                    let new_width = e.event.position.x
 7266                                                        - workspace.bounds.left()
 7267                                                        - left_dock_width;
 7268                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7269                                                }
 7270                                                UtilityPaneSlot::Right => {
 7271                                                    let right_dock_width = workspace.right_dock.read(cx)
 7272                                                        .active_panel_size(window, cx)
 7273                                                        .unwrap_or(gpui::px(0.0));
 7274                                                    let new_width = workspace.bounds.right()
 7275                                                        - e.event.position.x
 7276                                                        - right_dock_width;
 7277                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7278                                                }
 7279                                            }
 7280                                        },
 7281                                    ))
 7282                                })
 7283                                .child({
 7284                                    match bottom_dock_layout {
 7285                                        BottomDockLayout::Full => div()
 7286                                            .flex()
 7287                                            .flex_col()
 7288                                            .h_full()
 7289                                            .child(
 7290                                                div()
 7291                                                    .flex()
 7292                                                    .flex_row()
 7293                                                    .flex_1()
 7294                                                    .overflow_hidden()
 7295                                                    .children(self.render_dock(
 7296                                                        DockPosition::Left,
 7297                                                        &self.left_dock,
 7298                                                        window,
 7299                                                        cx,
 7300                                                    ))
 7301                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7302                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7303                                                            this.when(pane.expanded(cx), |this| {
 7304                                                                this.child(
 7305                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7306                                                                )
 7307                                                            })
 7308                                                        })
 7309                                                    })
 7310                                                    .child(
 7311                                                        div()
 7312                                                            .flex()
 7313                                                            .flex_col()
 7314                                                            .flex_1()
 7315                                                            .overflow_hidden()
 7316                                                            .child(
 7317                                                                h_flex()
 7318                                                                    .flex_1()
 7319                                                                    .when_some(
 7320                                                                        paddings.0,
 7321                                                                        |this, p| {
 7322                                                                            this.child(
 7323                                                                                p.border_r_1(),
 7324                                                                            )
 7325                                                                        },
 7326                                                                    )
 7327                                                                    .child(self.center.render(
 7328                                                                        self.zoomed.as_ref(),
 7329                                                                        &PaneRenderContext {
 7330                                                                            follower_states:
 7331                                                                                &self.follower_states,
 7332                                                                            active_call: self.active_call(),
 7333                                                                            active_pane: &self.active_pane,
 7334                                                                            app_state: &self.app_state,
 7335                                                                            project: &self.project,
 7336                                                                            workspace: &self.weak_self,
 7337                                                                        },
 7338                                                                        window,
 7339                                                                        cx,
 7340                                                                    ))
 7341                                                                    .when_some(
 7342                                                                        paddings.1,
 7343                                                                        |this, p| {
 7344                                                                            this.child(
 7345                                                                                p.border_l_1(),
 7346                                                                            )
 7347                                                                        },
 7348                                                                    ),
 7349                                                            ),
 7350                                                    )
 7351                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7352                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7353                                                            this.when(pane.expanded(cx), |this| {
 7354                                                                this.child(
 7355                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7356                                                                )
 7357                                                            })
 7358                                                        })
 7359                                                    })
 7360                                                    .children(self.render_dock(
 7361                                                        DockPosition::Right,
 7362                                                        &self.right_dock,
 7363                                                        window,
 7364                                                        cx,
 7365                                                    )),
 7366                                            )
 7367                                            .child(div().w_full().children(self.render_dock(
 7368                                                DockPosition::Bottom,
 7369                                                &self.bottom_dock,
 7370                                                window,
 7371                                                cx
 7372                                            ))),
 7373
 7374                                        BottomDockLayout::LeftAligned => div()
 7375                                            .flex()
 7376                                            .flex_row()
 7377                                            .h_full()
 7378                                            .child(
 7379                                                div()
 7380                                                    .flex()
 7381                                                    .flex_col()
 7382                                                    .flex_1()
 7383                                                    .h_full()
 7384                                                    .child(
 7385                                                        div()
 7386                                                            .flex()
 7387                                                            .flex_row()
 7388                                                            .flex_1()
 7389                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7390                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7391                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7392                                                                    this.when(pane.expanded(cx), |this| {
 7393                                                                        this.child(
 7394                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7395                                                                        )
 7396                                                                    })
 7397                                                                })
 7398                                                            })
 7399                                                            .child(
 7400                                                                div()
 7401                                                                    .flex()
 7402                                                                    .flex_col()
 7403                                                                    .flex_1()
 7404                                                                    .overflow_hidden()
 7405                                                                    .child(
 7406                                                                        h_flex()
 7407                                                                            .flex_1()
 7408                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7409                                                                            .child(self.center.render(
 7410                                                                                self.zoomed.as_ref(),
 7411                                                                                &PaneRenderContext {
 7412                                                                                    follower_states:
 7413                                                                                        &self.follower_states,
 7414                                                                                    active_call: self.active_call(),
 7415                                                                                    active_pane: &self.active_pane,
 7416                                                                                    app_state: &self.app_state,
 7417                                                                                    project: &self.project,
 7418                                                                                    workspace: &self.weak_self,
 7419                                                                                },
 7420                                                                                window,
 7421                                                                                cx,
 7422                                                                            ))
 7423                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7424                                                                    )
 7425                                                            )
 7426                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7427                                                                this.when(pane.expanded(cx), |this| {
 7428                                                                    this.child(
 7429                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7430                                                                    )
 7431                                                                })
 7432                                                            })
 7433                                                    )
 7434                                                    .child(
 7435                                                        div()
 7436                                                            .w_full()
 7437                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7438                                                    ),
 7439                                            )
 7440                                            .children(self.render_dock(
 7441                                                DockPosition::Right,
 7442                                                &self.right_dock,
 7443                                                window,
 7444                                                cx,
 7445                                            )),
 7446
 7447                                        BottomDockLayout::RightAligned => div()
 7448                                            .flex()
 7449                                            .flex_row()
 7450                                            .h_full()
 7451                                            .children(self.render_dock(
 7452                                                DockPosition::Left,
 7453                                                &self.left_dock,
 7454                                                window,
 7455                                                cx,
 7456                                            ))
 7457                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7458                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7459                                                    this.when(pane.expanded(cx), |this| {
 7460                                                        this.child(
 7461                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7462                                                        )
 7463                                                    })
 7464                                                })
 7465                                            })
 7466                                            .child(
 7467                                                div()
 7468                                                    .flex()
 7469                                                    .flex_col()
 7470                                                    .flex_1()
 7471                                                    .h_full()
 7472                                                    .child(
 7473                                                        div()
 7474                                                            .flex()
 7475                                                            .flex_row()
 7476                                                            .flex_1()
 7477                                                            .child(
 7478                                                                div()
 7479                                                                    .flex()
 7480                                                                    .flex_col()
 7481                                                                    .flex_1()
 7482                                                                    .overflow_hidden()
 7483                                                                    .child(
 7484                                                                        h_flex()
 7485                                                                            .flex_1()
 7486                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7487                                                                            .child(self.center.render(
 7488                                                                                self.zoomed.as_ref(),
 7489                                                                                &PaneRenderContext {
 7490                                                                                    follower_states:
 7491                                                                                        &self.follower_states,
 7492                                                                                    active_call: self.active_call(),
 7493                                                                                    active_pane: &self.active_pane,
 7494                                                                                    app_state: &self.app_state,
 7495                                                                                    project: &self.project,
 7496                                                                                    workspace: &self.weak_self,
 7497                                                                                },
 7498                                                                                window,
 7499                                                                                cx,
 7500                                                                            ))
 7501                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7502                                                                    )
 7503                                                            )
 7504                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7505                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7506                                                                    this.when(pane.expanded(cx), |this| {
 7507                                                                        this.child(
 7508                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7509                                                                        )
 7510                                                                    })
 7511                                                                })
 7512                                                            })
 7513                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7514                                                    )
 7515                                                    .child(
 7516                                                        div()
 7517                                                            .w_full()
 7518                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7519                                                    ),
 7520                                            ),
 7521
 7522                                        BottomDockLayout::Contained => div()
 7523                                            .flex()
 7524                                            .flex_row()
 7525                                            .h_full()
 7526                                            .children(self.render_dock(
 7527                                                DockPosition::Left,
 7528                                                &self.left_dock,
 7529                                                window,
 7530                                                cx,
 7531                                            ))
 7532                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7533                                                this.when(pane.expanded(cx), |this| {
 7534                                                    this.child(
 7535                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7536                                                    )
 7537                                                })
 7538                                            })
 7539                                            .child(
 7540                                                div()
 7541                                                    .flex()
 7542                                                    .flex_col()
 7543                                                    .flex_1()
 7544                                                    .overflow_hidden()
 7545                                                    .child(
 7546                                                        h_flex()
 7547                                                            .flex_1()
 7548                                                            .when_some(paddings.0, |this, p| {
 7549                                                                this.child(p.border_r_1())
 7550                                                            })
 7551                                                            .child(self.center.render(
 7552                                                                self.zoomed.as_ref(),
 7553                                                                &PaneRenderContext {
 7554                                                                    follower_states:
 7555                                                                        &self.follower_states,
 7556                                                                    active_call: self.active_call(),
 7557                                                                    active_pane: &self.active_pane,
 7558                                                                    app_state: &self.app_state,
 7559                                                                    project: &self.project,
 7560                                                                    workspace: &self.weak_self,
 7561                                                                },
 7562                                                                window,
 7563                                                                cx,
 7564                                                            ))
 7565                                                            .when_some(paddings.1, |this, p| {
 7566                                                                this.child(p.border_l_1())
 7567                                                            }),
 7568                                                    )
 7569                                                    .children(self.render_dock(
 7570                                                        DockPosition::Bottom,
 7571                                                        &self.bottom_dock,
 7572                                                        window,
 7573                                                        cx,
 7574                                                    )),
 7575                                            )
 7576                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7577                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7578                                                    this.when(pane.expanded(cx), |this| {
 7579                                                        this.child(
 7580                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7581                                                        )
 7582                                                    })
 7583                                                })
 7584                                            })
 7585                                            .children(self.render_dock(
 7586                                                DockPosition::Right,
 7587                                                &self.right_dock,
 7588                                                window,
 7589                                                cx,
 7590                                            )),
 7591                                    }
 7592                                })
 7593                                .children(self.zoomed.as_ref().and_then(|view| {
 7594                                    let zoomed_view = view.upgrade()?;
 7595                                    let div = div()
 7596                                        .occlude()
 7597                                        .absolute()
 7598                                        .overflow_hidden()
 7599                                        .border_color(colors.border)
 7600                                        .bg(colors.background)
 7601                                        .child(zoomed_view)
 7602                                        .inset_0()
 7603                                        .shadow_lg();
 7604
 7605                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7606                                       return Some(div);
 7607                                    }
 7608
 7609                                    Some(match self.zoomed_position {
 7610                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7611                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7612                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7613                                        None => {
 7614                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7615                                        }
 7616                                    })
 7617                                }))
 7618                                .children(self.render_notifications(window, cx)),
 7619                        )
 7620                        .when(self.status_bar_visible(cx), |parent| {
 7621                            parent.child(self.status_bar.clone())
 7622                        })
 7623                        .child(self.modal_layer.clone())
 7624                        .child(self.toast_layer.clone()),
 7625                ),
 7626            window,
 7627            cx,
 7628        )
 7629    }
 7630}
 7631
 7632impl WorkspaceStore {
 7633    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7634        Self {
 7635            workspaces: Default::default(),
 7636            _subscriptions: vec![
 7637                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7638                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7639            ],
 7640            client,
 7641        }
 7642    }
 7643
 7644    pub fn update_followers(
 7645        &self,
 7646        project_id: Option<u64>,
 7647        update: proto::update_followers::Variant,
 7648        cx: &App,
 7649    ) -> Option<()> {
 7650        let active_call = ActiveCall::try_global(cx)?;
 7651        let room_id = active_call.read(cx).room()?.read(cx).id();
 7652        self.client
 7653            .send(proto::UpdateFollowers {
 7654                room_id,
 7655                project_id,
 7656                variant: Some(update),
 7657            })
 7658            .log_err()
 7659    }
 7660
 7661    pub async fn handle_follow(
 7662        this: Entity<Self>,
 7663        envelope: TypedEnvelope<proto::Follow>,
 7664        mut cx: AsyncApp,
 7665    ) -> Result<proto::FollowResponse> {
 7666        this.update(&mut cx, |this, cx| {
 7667            let follower = Follower {
 7668                project_id: envelope.payload.project_id,
 7669                peer_id: envelope.original_sender_id()?,
 7670            };
 7671
 7672            let mut response = proto::FollowResponse::default();
 7673            this.workspaces.retain(|workspace| {
 7674                workspace
 7675                    .update(cx, |workspace, window, cx| {
 7676                        let handler_response =
 7677                            workspace.handle_follow(follower.project_id, window, cx);
 7678                        if let Some(active_view) = handler_response.active_view
 7679                            && workspace.project.read(cx).remote_id() == follower.project_id
 7680                        {
 7681                            response.active_view = Some(active_view)
 7682                        }
 7683                    })
 7684                    .is_ok()
 7685            });
 7686
 7687            Ok(response)
 7688        })
 7689    }
 7690
 7691    async fn handle_update_followers(
 7692        this: Entity<Self>,
 7693        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7694        mut cx: AsyncApp,
 7695    ) -> Result<()> {
 7696        let leader_id = envelope.original_sender_id()?;
 7697        let update = envelope.payload;
 7698
 7699        this.update(&mut cx, |this, cx| {
 7700            this.workspaces.retain(|workspace| {
 7701                workspace
 7702                    .update(cx, |workspace, window, cx| {
 7703                        let project_id = workspace.project.read(cx).remote_id();
 7704                        if update.project_id != project_id && update.project_id.is_some() {
 7705                            return;
 7706                        }
 7707                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7708                    })
 7709                    .is_ok()
 7710            });
 7711            Ok(())
 7712        })
 7713    }
 7714
 7715    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7716        &self.workspaces
 7717    }
 7718}
 7719
 7720impl ViewId {
 7721    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7722        Ok(Self {
 7723            creator: message
 7724                .creator
 7725                .map(CollaboratorId::PeerId)
 7726                .context("creator is missing")?,
 7727            id: message.id,
 7728        })
 7729    }
 7730
 7731    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7732        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7733            Some(proto::ViewId {
 7734                creator: Some(peer_id),
 7735                id: self.id,
 7736            })
 7737        } else {
 7738            None
 7739        }
 7740    }
 7741}
 7742
 7743impl FollowerState {
 7744    fn pane(&self) -> &Entity<Pane> {
 7745        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7746    }
 7747}
 7748
 7749pub trait WorkspaceHandle {
 7750    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7751}
 7752
 7753impl WorkspaceHandle for Entity<Workspace> {
 7754    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7755        self.read(cx)
 7756            .worktrees(cx)
 7757            .flat_map(|worktree| {
 7758                let worktree_id = worktree.read(cx).id();
 7759                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7760                    worktree_id,
 7761                    path: f.path.clone(),
 7762                })
 7763            })
 7764            .collect::<Vec<_>>()
 7765    }
 7766}
 7767
 7768pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7769    DB.last_workspace().await.log_err().flatten()
 7770}
 7771
 7772pub fn last_session_workspace_locations(
 7773    last_session_id: &str,
 7774    last_session_window_stack: Option<Vec<WindowId>>,
 7775) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7776    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7777        .log_err()
 7778}
 7779
 7780actions!(
 7781    collab,
 7782    [
 7783        /// Opens the channel notes for the current call.
 7784        ///
 7785        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7786        /// channel in the collab panel.
 7787        ///
 7788        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7789        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7790        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7791        OpenChannelNotes,
 7792        /// Mutes your microphone.
 7793        Mute,
 7794        /// Deafens yourself (mute both microphone and speakers).
 7795        Deafen,
 7796        /// Leaves the current call.
 7797        LeaveCall,
 7798        /// Shares the current project with collaborators.
 7799        ShareProject,
 7800        /// Shares your screen with collaborators.
 7801        ScreenShare,
 7802        /// Copies the current room name and session id for debugging purposes.
 7803        CopyRoomId,
 7804    ]
 7805);
 7806actions!(
 7807    zed,
 7808    [
 7809        /// Opens the Zed log file.
 7810        OpenLog,
 7811        /// Reveals the Zed log file in the system file manager.
 7812        RevealLogInFileManager
 7813    ]
 7814);
 7815
 7816async fn join_channel_internal(
 7817    channel_id: ChannelId,
 7818    app_state: &Arc<AppState>,
 7819    requesting_window: Option<WindowHandle<Workspace>>,
 7820    active_call: &Entity<ActiveCall>,
 7821    cx: &mut AsyncApp,
 7822) -> Result<bool> {
 7823    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7824        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7825            return (false, None);
 7826        };
 7827
 7828        let already_in_channel = room.channel_id() == Some(channel_id);
 7829        let should_prompt = room.is_sharing_project()
 7830            && !room.remote_participants().is_empty()
 7831            && !already_in_channel;
 7832        let open_room = if already_in_channel {
 7833            active_call.room().cloned()
 7834        } else {
 7835            None
 7836        };
 7837        (should_prompt, open_room)
 7838    });
 7839
 7840    if let Some(room) = open_room {
 7841        let task = room.update(cx, |room, cx| {
 7842            if let Some((project, host)) = room.most_active_project(cx) {
 7843                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7844            }
 7845
 7846            None
 7847        });
 7848        if let Some(task) = task {
 7849            task.await?;
 7850        }
 7851        return anyhow::Ok(true);
 7852    }
 7853
 7854    if should_prompt {
 7855        if let Some(workspace) = requesting_window {
 7856            let answer = workspace
 7857                .update(cx, |_, window, cx| {
 7858                    window.prompt(
 7859                        PromptLevel::Warning,
 7860                        "Do you want to switch channels?",
 7861                        Some("Leaving this call will unshare your current project."),
 7862                        &["Yes, Join Channel", "Cancel"],
 7863                        cx,
 7864                    )
 7865                })?
 7866                .await;
 7867
 7868            if answer == Ok(1) {
 7869                return Ok(false);
 7870            }
 7871        } else {
 7872            return Ok(false); // unreachable!() hopefully
 7873        }
 7874    }
 7875
 7876    let client = cx.update(|cx| active_call.read(cx).client());
 7877
 7878    let mut client_status = client.status();
 7879
 7880    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7881    'outer: loop {
 7882        let Some(status) = client_status.recv().await else {
 7883            anyhow::bail!("error connecting");
 7884        };
 7885
 7886        match status {
 7887            Status::Connecting
 7888            | Status::Authenticating
 7889            | Status::Authenticated
 7890            | Status::Reconnecting
 7891            | Status::Reauthenticating
 7892            | Status::Reauthenticated => continue,
 7893            Status::Connected { .. } => break 'outer,
 7894            Status::SignedOut | Status::AuthenticationError => {
 7895                return Err(ErrorCode::SignedOut.into());
 7896            }
 7897            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7898            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7899                return Err(ErrorCode::Disconnected.into());
 7900            }
 7901        }
 7902    }
 7903
 7904    let room = active_call
 7905        .update(cx, |active_call, cx| {
 7906            active_call.join_channel(channel_id, cx)
 7907        })
 7908        .await?;
 7909
 7910    let Some(room) = room else {
 7911        return anyhow::Ok(true);
 7912    };
 7913
 7914    room.update(cx, |room, _| room.room_update_completed())
 7915        .await;
 7916
 7917    let task = room.update(cx, |room, cx| {
 7918        if let Some((project, host)) = room.most_active_project(cx) {
 7919            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7920        }
 7921
 7922        // If you are the first to join a channel, see if you should share your project.
 7923        if room.remote_participants().is_empty()
 7924            && !room.local_participant_is_guest()
 7925            && let Some(workspace) = requesting_window
 7926        {
 7927            let project = workspace.update(cx, |workspace, _, cx| {
 7928                let project = workspace.project.read(cx);
 7929
 7930                if !CallSettings::get_global(cx).share_on_join {
 7931                    return None;
 7932                }
 7933
 7934                if (project.is_local() || project.is_via_remote_server())
 7935                    && project.visible_worktrees(cx).any(|tree| {
 7936                        tree.read(cx)
 7937                            .root_entry()
 7938                            .is_some_and(|entry| entry.is_dir())
 7939                    })
 7940                {
 7941                    Some(workspace.project.clone())
 7942                } else {
 7943                    None
 7944                }
 7945            });
 7946            if let Ok(Some(project)) = project {
 7947                return Some(cx.spawn(async move |room, cx| {
 7948                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7949                        .await?;
 7950                    Ok(())
 7951                }));
 7952            }
 7953        }
 7954
 7955        None
 7956    });
 7957    if let Some(task) = task {
 7958        task.await?;
 7959        return anyhow::Ok(true);
 7960    }
 7961    anyhow::Ok(false)
 7962}
 7963
 7964pub fn join_channel(
 7965    channel_id: ChannelId,
 7966    app_state: Arc<AppState>,
 7967    requesting_window: Option<WindowHandle<Workspace>>,
 7968    cx: &mut App,
 7969) -> Task<Result<()>> {
 7970    let active_call = ActiveCall::global(cx);
 7971    cx.spawn(async move |cx| {
 7972        let result =
 7973            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7974                .await;
 7975
 7976        // join channel succeeded, and opened a window
 7977        if matches!(result, Ok(true)) {
 7978            return anyhow::Ok(());
 7979        }
 7980
 7981        // find an existing workspace to focus and show call controls
 7982        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7983        if active_window.is_none() {
 7984            // no open workspaces, make one to show the error in (blergh)
 7985            let (window_handle, _) = cx
 7986                .update(|cx| {
 7987                    Workspace::new_local(
 7988                        vec![],
 7989                        app_state.clone(),
 7990                        requesting_window,
 7991                        None,
 7992                        None,
 7993                        cx,
 7994                    )
 7995                })
 7996                .await?;
 7997
 7998            if result.is_ok() {
 7999                cx.update(|cx| {
 8000                    cx.dispatch_action(&OpenChannelNotes);
 8001                });
 8002            }
 8003
 8004            active_window = Some(window_handle);
 8005        }
 8006
 8007        if let Err(err) = result {
 8008            log::error!("failed to join channel: {}", err);
 8009            if let Some(active_window) = active_window {
 8010                active_window
 8011                    .update(cx, |_, window, cx| {
 8012                        let detail: SharedString = match err.error_code() {
 8013                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8014                            ErrorCode::UpgradeRequired => concat!(
 8015                                "Your are running an unsupported version of Zed. ",
 8016                                "Please update to continue."
 8017                            )
 8018                            .into(),
 8019                            ErrorCode::NoSuchChannel => concat!(
 8020                                "No matching channel was found. ",
 8021                                "Please check the link and try again."
 8022                            )
 8023                            .into(),
 8024                            ErrorCode::Forbidden => concat!(
 8025                                "This channel is private, and you do not have access. ",
 8026                                "Please ask someone to add you and try again."
 8027                            )
 8028                            .into(),
 8029                            ErrorCode::Disconnected => {
 8030                                "Please check your internet connection and try again.".into()
 8031                            }
 8032                            _ => format!("{}\n\nPlease try again.", err).into(),
 8033                        };
 8034                        window.prompt(
 8035                            PromptLevel::Critical,
 8036                            "Failed to join channel",
 8037                            Some(&detail),
 8038                            &["Ok"],
 8039                            cx,
 8040                        )
 8041                    })?
 8042                    .await
 8043                    .ok();
 8044            }
 8045        }
 8046
 8047        // return ok, we showed the error to the user.
 8048        anyhow::Ok(())
 8049    })
 8050}
 8051
 8052pub async fn get_any_active_workspace(
 8053    app_state: Arc<AppState>,
 8054    mut cx: AsyncApp,
 8055) -> anyhow::Result<WindowHandle<Workspace>> {
 8056    // find an existing workspace to focus and show call controls
 8057    let active_window = activate_any_workspace_window(&mut cx);
 8058    if active_window.is_none() {
 8059        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))
 8060            .await?;
 8061    }
 8062    activate_any_workspace_window(&mut cx).context("could not open zed")
 8063}
 8064
 8065fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 8066    cx.update(|cx| {
 8067        if let Some(workspace_window) = cx
 8068            .active_window()
 8069            .and_then(|window| window.downcast::<Workspace>())
 8070        {
 8071            return Some(workspace_window);
 8072        }
 8073
 8074        for window in cx.windows() {
 8075            if let Some(workspace_window) = window.downcast::<Workspace>() {
 8076                workspace_window
 8077                    .update(cx, |_, window, _| window.activate_window())
 8078                    .ok();
 8079                return Some(workspace_window);
 8080            }
 8081        }
 8082        None
 8083    })
 8084}
 8085
 8086pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 8087    cx.windows()
 8088        .into_iter()
 8089        .filter_map(|window| window.downcast::<Workspace>())
 8090        .filter(|workspace| {
 8091            workspace
 8092                .read(cx)
 8093                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 8094        })
 8095        .collect()
 8096}
 8097
 8098#[derive(Default)]
 8099pub struct OpenOptions {
 8100    pub visible: Option<OpenVisible>,
 8101    pub focus: Option<bool>,
 8102    pub open_new_workspace: Option<bool>,
 8103    pub prefer_focused_window: bool,
 8104    pub replace_window: Option<WindowHandle<Workspace>>,
 8105    pub env: Option<HashMap<String, String>>,
 8106}
 8107
 8108#[allow(clippy::type_complexity)]
 8109pub fn open_paths(
 8110    abs_paths: &[PathBuf],
 8111    app_state: Arc<AppState>,
 8112    open_options: OpenOptions,
 8113    cx: &mut App,
 8114) -> Task<
 8115    anyhow::Result<(
 8116        WindowHandle<Workspace>,
 8117        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8118    )>,
 8119> {
 8120    let abs_paths = abs_paths.to_vec();
 8121    let mut existing = None;
 8122    let mut best_match = None;
 8123    let mut open_visible = OpenVisible::All;
 8124    #[cfg(target_os = "windows")]
 8125    let wsl_path = abs_paths
 8126        .iter()
 8127        .find_map(|p| util::paths::WslPath::from_path(p));
 8128
 8129    cx.spawn(async move |cx| {
 8130        if open_options.open_new_workspace != Some(true) {
 8131            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8132            let all_metadatas = futures::future::join_all(all_paths)
 8133                .await
 8134                .into_iter()
 8135                .filter_map(|result| result.ok().flatten())
 8136                .collect::<Vec<_>>();
 8137
 8138            cx.update(|cx| {
 8139                for window in local_workspace_windows(cx) {
 8140                    if let Ok(workspace) = window.read(cx) {
 8141                        let m = workspace.project.read(cx).visibility_for_paths(
 8142                            &abs_paths,
 8143                            &all_metadatas,
 8144                            open_options.open_new_workspace == None,
 8145                            cx,
 8146                        );
 8147                        if m > best_match {
 8148                            existing = Some(window);
 8149                            best_match = m;
 8150                        } else if best_match.is_none()
 8151                            && open_options.open_new_workspace == Some(false)
 8152                        {
 8153                            existing = Some(window)
 8154                        }
 8155                    }
 8156                }
 8157            });
 8158
 8159            if open_options.open_new_workspace.is_none()
 8160                && (existing.is_none() || open_options.prefer_focused_window)
 8161                && all_metadatas.iter().all(|file| !file.is_dir)
 8162            {
 8163                cx.update(|cx| {
 8164                    if let Some(window) = cx
 8165                        .active_window()
 8166                        .and_then(|window| window.downcast::<Workspace>())
 8167                        && let Ok(workspace) = window.read(cx)
 8168                    {
 8169                        let project = workspace.project().read(cx);
 8170                        if project.is_local() && !project.is_via_collab() {
 8171                            existing = Some(window);
 8172                            open_visible = OpenVisible::None;
 8173                            return;
 8174                        }
 8175                    }
 8176                    for window in local_workspace_windows(cx) {
 8177                        if let Ok(workspace) = window.read(cx) {
 8178                            let project = workspace.project().read(cx);
 8179                            if project.is_via_collab() {
 8180                                continue;
 8181                            }
 8182                            existing = Some(window);
 8183                            open_visible = OpenVisible::None;
 8184                            break;
 8185                        }
 8186                    }
 8187                });
 8188            }
 8189        }
 8190
 8191        let result = if let Some(existing) = existing {
 8192            let open_task = existing
 8193                .update(cx, |workspace, window, cx| {
 8194                    window.activate_window();
 8195                    workspace.open_paths(
 8196                        abs_paths,
 8197                        OpenOptions {
 8198                            visible: Some(open_visible),
 8199                            ..Default::default()
 8200                        },
 8201                        None,
 8202                        window,
 8203                        cx,
 8204                    )
 8205                })?
 8206                .await;
 8207
 8208            _ = existing.update(cx, |workspace, _, cx| {
 8209                for item in open_task.iter().flatten() {
 8210                    if let Err(e) = item {
 8211                        workspace.show_error(&e, cx);
 8212                    }
 8213                }
 8214            });
 8215
 8216            Ok((existing, open_task))
 8217        } else {
 8218            cx.update(move |cx| {
 8219                Workspace::new_local(
 8220                    abs_paths,
 8221                    app_state.clone(),
 8222                    open_options.replace_window,
 8223                    open_options.env,
 8224                    None,
 8225                    cx,
 8226                )
 8227            })
 8228            .await
 8229        };
 8230
 8231        #[cfg(target_os = "windows")]
 8232        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8233            && let Ok((workspace, _)) = &result
 8234        {
 8235            workspace
 8236                .update(cx, move |workspace, _window, cx| {
 8237                    struct OpenInWsl;
 8238                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8239                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8240                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8241                        cx.new(move |cx| {
 8242                            MessageNotification::new(msg, cx)
 8243                                .primary_message("Open in WSL")
 8244                                .primary_icon(IconName::FolderOpen)
 8245                                .primary_on_click(move |window, cx| {
 8246                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8247                                            distro: remote::WslConnectionOptions {
 8248                                                    distro_name: distro.clone(),
 8249                                                user: None,
 8250                                            },
 8251                                            paths: vec![path.clone().into()],
 8252                                        }), cx)
 8253                                })
 8254                        })
 8255                    });
 8256                })
 8257                .unwrap();
 8258        };
 8259        result
 8260    })
 8261}
 8262
 8263pub fn open_new(
 8264    open_options: OpenOptions,
 8265    app_state: Arc<AppState>,
 8266    cx: &mut App,
 8267    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8268) -> Task<anyhow::Result<()>> {
 8269    let task = Workspace::new_local(
 8270        Vec::new(),
 8271        app_state,
 8272        None,
 8273        open_options.env,
 8274        Some(Box::new(init)),
 8275        cx,
 8276    );
 8277    cx.spawn(async move |_cx| {
 8278        let (_workspace, _opened_paths) = task.await?;
 8279        // Init callback is called synchronously during workspace creation
 8280        Ok(())
 8281    })
 8282}
 8283
 8284pub fn create_and_open_local_file(
 8285    path: &'static Path,
 8286    window: &mut Window,
 8287    cx: &mut Context<Workspace>,
 8288    default_content: impl 'static + Send + FnOnce() -> Rope,
 8289) -> Task<Result<Box<dyn ItemHandle>>> {
 8290    cx.spawn_in(window, async move |workspace, cx| {
 8291        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8292        if !fs.is_file(path).await {
 8293            fs.create_file(path, Default::default()).await?;
 8294            fs.save(path, &default_content(), Default::default())
 8295                .await?;
 8296        }
 8297
 8298        workspace
 8299            .update_in(cx, |workspace, window, cx| {
 8300                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 8301                    let path = workspace
 8302                        .project
 8303                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 8304                    cx.spawn_in(window, async move |workspace, cx| {
 8305                        let path = path.await?;
 8306                        let mut items = workspace
 8307                            .update_in(cx, |workspace, window, cx| {
 8308                                workspace.open_paths(
 8309                                    vec![path.to_path_buf()],
 8310                                    OpenOptions {
 8311                                        visible: Some(OpenVisible::None),
 8312                                        ..Default::default()
 8313                                    },
 8314                                    None,
 8315                                    window,
 8316                                    cx,
 8317                                )
 8318                            })?
 8319                            .await;
 8320                        let item = items.pop().flatten();
 8321                        item.with_context(|| format!("path {path:?} is not a file"))?
 8322                    })
 8323                })
 8324            })?
 8325            .await?
 8326            .await
 8327    })
 8328}
 8329
 8330pub fn open_remote_project_with_new_connection(
 8331    window: WindowHandle<Workspace>,
 8332    remote_connection: Arc<dyn RemoteConnection>,
 8333    cancel_rx: oneshot::Receiver<()>,
 8334    delegate: Arc<dyn RemoteClientDelegate>,
 8335    app_state: Arc<AppState>,
 8336    paths: Vec<PathBuf>,
 8337    cx: &mut App,
 8338) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8339    cx.spawn(async move |cx| {
 8340        let (workspace_id, serialized_workspace) =
 8341            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8342                .await?;
 8343
 8344        let session = match cx
 8345            .update(|cx| {
 8346                remote::RemoteClient::new(
 8347                    ConnectionIdentifier::Workspace(workspace_id.0),
 8348                    remote_connection,
 8349                    cancel_rx,
 8350                    delegate,
 8351                    cx,
 8352                )
 8353            })
 8354            .await?
 8355        {
 8356            Some(result) => result,
 8357            None => return Ok(Vec::new()),
 8358        };
 8359
 8360        let project = cx.update(|cx| {
 8361            project::Project::remote(
 8362                session,
 8363                app_state.client.clone(),
 8364                app_state.node_runtime.clone(),
 8365                app_state.user_store.clone(),
 8366                app_state.languages.clone(),
 8367                app_state.fs.clone(),
 8368                true,
 8369                cx,
 8370            )
 8371        });
 8372
 8373        open_remote_project_inner(
 8374            project,
 8375            paths,
 8376            workspace_id,
 8377            serialized_workspace,
 8378            app_state,
 8379            window,
 8380            cx,
 8381        )
 8382        .await
 8383    })
 8384}
 8385
 8386pub fn open_remote_project_with_existing_connection(
 8387    connection_options: RemoteConnectionOptions,
 8388    project: Entity<Project>,
 8389    paths: Vec<PathBuf>,
 8390    app_state: Arc<AppState>,
 8391    window: WindowHandle<Workspace>,
 8392    cx: &mut AsyncApp,
 8393) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8394    cx.spawn(async move |cx| {
 8395        let (workspace_id, serialized_workspace) =
 8396            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8397
 8398        open_remote_project_inner(
 8399            project,
 8400            paths,
 8401            workspace_id,
 8402            serialized_workspace,
 8403            app_state,
 8404            window,
 8405            cx,
 8406        )
 8407        .await
 8408    })
 8409}
 8410
 8411async fn open_remote_project_inner(
 8412    project: Entity<Project>,
 8413    paths: Vec<PathBuf>,
 8414    workspace_id: WorkspaceId,
 8415    serialized_workspace: Option<SerializedWorkspace>,
 8416    app_state: Arc<AppState>,
 8417    window: WindowHandle<Workspace>,
 8418    cx: &mut AsyncApp,
 8419) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8420    let toolchains = DB.toolchains(workspace_id).await?;
 8421    for (toolchain, worktree_path, path) in toolchains {
 8422        project
 8423            .update(cx, |this, cx| {
 8424                let Some(worktree_id) =
 8425                    this.find_worktree(&worktree_path, cx)
 8426                        .and_then(|(worktree, rel_path)| {
 8427                            if rel_path.is_empty() {
 8428                                Some(worktree.read(cx).id())
 8429                            } else {
 8430                                None
 8431                            }
 8432                        })
 8433                else {
 8434                    return Task::ready(None);
 8435                };
 8436
 8437                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8438            })
 8439            .await;
 8440    }
 8441    let mut project_paths_to_open = vec![];
 8442    let mut project_path_errors = vec![];
 8443
 8444    for path in paths {
 8445        let result = cx
 8446            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 8447            .await;
 8448        match result {
 8449            Ok((_, project_path)) => {
 8450                project_paths_to_open.push((path.clone(), Some(project_path)));
 8451            }
 8452            Err(error) => {
 8453                project_path_errors.push(error);
 8454            }
 8455        };
 8456    }
 8457
 8458    if project_paths_to_open.is_empty() {
 8459        return Err(project_path_errors.pop().context("no paths given")?);
 8460    }
 8461
 8462    if let Some(detach_session_task) = window
 8463        .update(cx, |_workspace, window, cx| {
 8464            cx.spawn_in(window, async move |this, cx| {
 8465                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8466            })
 8467        })
 8468        .ok()
 8469    {
 8470        detach_session_task.await.ok();
 8471    }
 8472
 8473    cx.update_window(window.into(), |_, window, cx| {
 8474        window.replace_root(cx, |window, cx| {
 8475            telemetry::event!("SSH Project Opened");
 8476
 8477            let mut workspace =
 8478                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8479            workspace.update_history(cx);
 8480
 8481            if let Some(ref serialized) = serialized_workspace {
 8482                workspace.centered_layout = serialized.centered_layout;
 8483            }
 8484
 8485            workspace
 8486        });
 8487    })?;
 8488
 8489    let items = window
 8490        .update(cx, |_, window, cx| {
 8491            window.activate_window();
 8492            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8493        })?
 8494        .await?;
 8495
 8496    window.update(cx, |workspace, _, cx| {
 8497        for error in project_path_errors {
 8498            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8499                if let Some(path) = error.error_tag("path") {
 8500                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8501                }
 8502            } else {
 8503                workspace.show_error(&error, cx)
 8504            }
 8505        }
 8506    })?;
 8507
 8508    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8509}
 8510
 8511fn deserialize_remote_project(
 8512    connection_options: RemoteConnectionOptions,
 8513    paths: Vec<PathBuf>,
 8514    cx: &AsyncApp,
 8515) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8516    cx.background_spawn(async move {
 8517        let remote_connection_id = persistence::DB
 8518            .get_or_create_remote_connection(connection_options)
 8519            .await?;
 8520
 8521        let serialized_workspace =
 8522            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8523
 8524        let workspace_id = if let Some(workspace_id) =
 8525            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8526        {
 8527            workspace_id
 8528        } else {
 8529            persistence::DB.next_id().await?
 8530        };
 8531
 8532        Ok((workspace_id, serialized_workspace))
 8533    })
 8534}
 8535
 8536pub fn join_in_room_project(
 8537    project_id: u64,
 8538    follow_user_id: u64,
 8539    app_state: Arc<AppState>,
 8540    cx: &mut App,
 8541) -> Task<Result<()>> {
 8542    let windows = cx.windows();
 8543    cx.spawn(async move |cx| {
 8544        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8545            window_handle
 8546                .downcast::<Workspace>()
 8547                .and_then(|window_handle| {
 8548                    window_handle
 8549                        .update(cx, |workspace, _window, cx| {
 8550                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8551                                Some(window_handle)
 8552                            } else {
 8553                                None
 8554                            }
 8555                        })
 8556                        .unwrap_or(None)
 8557                })
 8558        });
 8559
 8560        let workspace = if let Some(existing_workspace) = existing_workspace {
 8561            existing_workspace
 8562        } else {
 8563            let active_call = cx.update(|cx| ActiveCall::global(cx));
 8564            let room = active_call
 8565                .read_with(cx, |call, _| call.room().cloned())
 8566                .context("not in a call")?;
 8567            let project = room
 8568                .update(cx, |room, cx| {
 8569                    room.join_project(
 8570                        project_id,
 8571                        app_state.languages.clone(),
 8572                        app_state.fs.clone(),
 8573                        cx,
 8574                    )
 8575                })
 8576                .await?;
 8577
 8578            let window_bounds_override = window_bounds_env_override();
 8579            cx.update(|cx| {
 8580                let mut options = (app_state.build_window_options)(None, cx);
 8581                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8582                cx.open_window(options, |window, cx| {
 8583                    cx.new(|cx| {
 8584                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8585                    })
 8586                })
 8587            })?
 8588        };
 8589
 8590        workspace.update(cx, |workspace, window, cx| {
 8591            cx.activate(true);
 8592            window.activate_window();
 8593
 8594            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8595                let follow_peer_id = room
 8596                    .read(cx)
 8597                    .remote_participants()
 8598                    .iter()
 8599                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8600                    .map(|(_, p)| p.peer_id)
 8601                    .or_else(|| {
 8602                        // If we couldn't follow the given user, follow the host instead.
 8603                        let collaborator = workspace
 8604                            .project()
 8605                            .read(cx)
 8606                            .collaborators()
 8607                            .values()
 8608                            .find(|collaborator| collaborator.is_host)?;
 8609                        Some(collaborator.peer_id)
 8610                    });
 8611
 8612                if let Some(follow_peer_id) = follow_peer_id {
 8613                    workspace.follow(follow_peer_id, window, cx);
 8614                }
 8615            }
 8616        })?;
 8617
 8618        anyhow::Ok(())
 8619    })
 8620}
 8621
 8622pub fn reload(cx: &mut App) {
 8623    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8624    let mut workspace_windows = cx
 8625        .windows()
 8626        .into_iter()
 8627        .filter_map(|window| window.downcast::<Workspace>())
 8628        .collect::<Vec<_>>();
 8629
 8630    // If multiple windows have unsaved changes, and need a save prompt,
 8631    // prompt in the active window before switching to a different window.
 8632    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8633
 8634    let mut prompt = None;
 8635    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8636        prompt = window
 8637            .update(cx, |_, window, cx| {
 8638                window.prompt(
 8639                    PromptLevel::Info,
 8640                    "Are you sure you want to restart?",
 8641                    None,
 8642                    &["Restart", "Cancel"],
 8643                    cx,
 8644                )
 8645            })
 8646            .ok();
 8647    }
 8648
 8649    cx.spawn(async move |cx| {
 8650        if let Some(prompt) = prompt {
 8651            let answer = prompt.await?;
 8652            if answer != 0 {
 8653                return anyhow::Ok(());
 8654            }
 8655        }
 8656
 8657        // If the user cancels any save prompt, then keep the app open.
 8658        for window in workspace_windows {
 8659            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8660                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8661            }) && !should_close.await?
 8662            {
 8663                return anyhow::Ok(());
 8664            }
 8665        }
 8666        cx.update(|cx| cx.restart());
 8667        anyhow::Ok(())
 8668    })
 8669    .detach_and_log_err(cx);
 8670}
 8671
 8672fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8673    let mut parts = value.split(',');
 8674    let x: usize = parts.next()?.parse().ok()?;
 8675    let y: usize = parts.next()?.parse().ok()?;
 8676    Some(point(px(x as f32), px(y as f32)))
 8677}
 8678
 8679fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8680    let mut parts = value.split(',');
 8681    let width: usize = parts.next()?.parse().ok()?;
 8682    let height: usize = parts.next()?.parse().ok()?;
 8683    Some(size(px(width as f32), px(height as f32)))
 8684}
 8685
 8686/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8687pub fn client_side_decorations(
 8688    element: impl IntoElement,
 8689    window: &mut Window,
 8690    cx: &mut App,
 8691) -> Stateful<Div> {
 8692    const BORDER_SIZE: Pixels = px(1.0);
 8693    let decorations = window.window_decorations();
 8694
 8695    match decorations {
 8696        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8697        Decorations::Server => window.set_client_inset(px(0.0)),
 8698    }
 8699
 8700    struct GlobalResizeEdge(ResizeEdge);
 8701    impl Global for GlobalResizeEdge {}
 8702
 8703    div()
 8704        .id("window-backdrop")
 8705        .bg(transparent_black())
 8706        .map(|div| match decorations {
 8707            Decorations::Server => div,
 8708            Decorations::Client { tiling, .. } => div
 8709                .when(!(tiling.top || tiling.right), |div| {
 8710                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8711                })
 8712                .when(!(tiling.top || tiling.left), |div| {
 8713                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8714                })
 8715                .when(!(tiling.bottom || tiling.right), |div| {
 8716                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8717                })
 8718                .when(!(tiling.bottom || tiling.left), |div| {
 8719                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8720                })
 8721                .when(!tiling.top, |div| {
 8722                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8723                })
 8724                .when(!tiling.bottom, |div| {
 8725                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8726                })
 8727                .when(!tiling.left, |div| {
 8728                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8729                })
 8730                .when(!tiling.right, |div| {
 8731                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8732                })
 8733                .on_mouse_move(move |e, window, cx| {
 8734                    let size = window.window_bounds().get_bounds().size;
 8735                    let pos = e.position;
 8736
 8737                    let new_edge =
 8738                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8739
 8740                    let edge = cx.try_global::<GlobalResizeEdge>();
 8741                    if new_edge != edge.map(|edge| edge.0) {
 8742                        window
 8743                            .window_handle()
 8744                            .update(cx, |workspace, _, cx| {
 8745                                cx.notify(workspace.entity_id());
 8746                            })
 8747                            .ok();
 8748                    }
 8749                })
 8750                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8751                    let size = window.window_bounds().get_bounds().size;
 8752                    let pos = e.position;
 8753
 8754                    let edge = match resize_edge(
 8755                        pos,
 8756                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8757                        size,
 8758                        tiling,
 8759                    ) {
 8760                        Some(value) => value,
 8761                        None => return,
 8762                    };
 8763
 8764                    window.start_window_resize(edge);
 8765                }),
 8766        })
 8767        .size_full()
 8768        .child(
 8769            div()
 8770                .cursor(CursorStyle::Arrow)
 8771                .map(|div| match decorations {
 8772                    Decorations::Server => div,
 8773                    Decorations::Client { tiling } => div
 8774                        .border_color(cx.theme().colors().border)
 8775                        .when(!(tiling.top || tiling.right), |div| {
 8776                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8777                        })
 8778                        .when(!(tiling.top || tiling.left), |div| {
 8779                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8780                        })
 8781                        .when(!(tiling.bottom || tiling.right), |div| {
 8782                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8783                        })
 8784                        .when(!(tiling.bottom || tiling.left), |div| {
 8785                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8786                        })
 8787                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8788                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8789                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8790                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8791                        .when(!tiling.is_tiled(), |div| {
 8792                            div.shadow(vec![gpui::BoxShadow {
 8793                                color: Hsla {
 8794                                    h: 0.,
 8795                                    s: 0.,
 8796                                    l: 0.,
 8797                                    a: 0.4,
 8798                                },
 8799                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8800                                spread_radius: px(0.),
 8801                                offset: point(px(0.0), px(0.0)),
 8802                            }])
 8803                        }),
 8804                })
 8805                .on_mouse_move(|_e, _, cx| {
 8806                    cx.stop_propagation();
 8807                })
 8808                .size_full()
 8809                .child(element),
 8810        )
 8811        .map(|div| match decorations {
 8812            Decorations::Server => div,
 8813            Decorations::Client { tiling, .. } => div.child(
 8814                canvas(
 8815                    |_bounds, window, _| {
 8816                        window.insert_hitbox(
 8817                            Bounds::new(
 8818                                point(px(0.0), px(0.0)),
 8819                                window.window_bounds().get_bounds().size,
 8820                            ),
 8821                            HitboxBehavior::Normal,
 8822                        )
 8823                    },
 8824                    move |_bounds, hitbox, window, cx| {
 8825                        let mouse = window.mouse_position();
 8826                        let size = window.window_bounds().get_bounds().size;
 8827                        let Some(edge) =
 8828                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8829                        else {
 8830                            return;
 8831                        };
 8832                        cx.set_global(GlobalResizeEdge(edge));
 8833                        window.set_cursor_style(
 8834                            match edge {
 8835                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8836                                ResizeEdge::Left | ResizeEdge::Right => {
 8837                                    CursorStyle::ResizeLeftRight
 8838                                }
 8839                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8840                                    CursorStyle::ResizeUpLeftDownRight
 8841                                }
 8842                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8843                                    CursorStyle::ResizeUpRightDownLeft
 8844                                }
 8845                            },
 8846                            &hitbox,
 8847                        );
 8848                    },
 8849                )
 8850                .size_full()
 8851                .absolute(),
 8852            ),
 8853        })
 8854}
 8855
 8856fn resize_edge(
 8857    pos: Point<Pixels>,
 8858    shadow_size: Pixels,
 8859    window_size: Size<Pixels>,
 8860    tiling: Tiling,
 8861) -> Option<ResizeEdge> {
 8862    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8863    if bounds.contains(&pos) {
 8864        return None;
 8865    }
 8866
 8867    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8868    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8869    if !tiling.top && top_left_bounds.contains(&pos) {
 8870        return Some(ResizeEdge::TopLeft);
 8871    }
 8872
 8873    let top_right_bounds = Bounds::new(
 8874        Point::new(window_size.width - corner_size.width, px(0.)),
 8875        corner_size,
 8876    );
 8877    if !tiling.top && top_right_bounds.contains(&pos) {
 8878        return Some(ResizeEdge::TopRight);
 8879    }
 8880
 8881    let bottom_left_bounds = Bounds::new(
 8882        Point::new(px(0.), window_size.height - corner_size.height),
 8883        corner_size,
 8884    );
 8885    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8886        return Some(ResizeEdge::BottomLeft);
 8887    }
 8888
 8889    let bottom_right_bounds = Bounds::new(
 8890        Point::new(
 8891            window_size.width - corner_size.width,
 8892            window_size.height - corner_size.height,
 8893        ),
 8894        corner_size,
 8895    );
 8896    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8897        return Some(ResizeEdge::BottomRight);
 8898    }
 8899
 8900    if !tiling.top && pos.y < shadow_size {
 8901        Some(ResizeEdge::Top)
 8902    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8903        Some(ResizeEdge::Bottom)
 8904    } else if !tiling.left && pos.x < shadow_size {
 8905        Some(ResizeEdge::Left)
 8906    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8907        Some(ResizeEdge::Right)
 8908    } else {
 8909        None
 8910    }
 8911}
 8912
 8913fn join_pane_into_active(
 8914    active_pane: &Entity<Pane>,
 8915    pane: &Entity<Pane>,
 8916    window: &mut Window,
 8917    cx: &mut App,
 8918) {
 8919    if pane == active_pane {
 8920    } else if pane.read(cx).items_len() == 0 {
 8921        pane.update(cx, |_, cx| {
 8922            cx.emit(pane::Event::Remove {
 8923                focus_on_pane: None,
 8924            });
 8925        })
 8926    } else {
 8927        move_all_items(pane, active_pane, window, cx);
 8928    }
 8929}
 8930
 8931fn move_all_items(
 8932    from_pane: &Entity<Pane>,
 8933    to_pane: &Entity<Pane>,
 8934    window: &mut Window,
 8935    cx: &mut App,
 8936) {
 8937    let destination_is_different = from_pane != to_pane;
 8938    let mut moved_items = 0;
 8939    for (item_ix, item_handle) in from_pane
 8940        .read(cx)
 8941        .items()
 8942        .enumerate()
 8943        .map(|(ix, item)| (ix, item.clone()))
 8944        .collect::<Vec<_>>()
 8945    {
 8946        let ix = item_ix - moved_items;
 8947        if destination_is_different {
 8948            // Close item from previous pane
 8949            from_pane.update(cx, |source, cx| {
 8950                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8951            });
 8952            moved_items += 1;
 8953        }
 8954
 8955        // This automatically removes duplicate items in the pane
 8956        to_pane.update(cx, |destination, cx| {
 8957            destination.add_item(item_handle, true, true, None, window, cx);
 8958            window.focus(&destination.focus_handle(cx), cx)
 8959        });
 8960    }
 8961}
 8962
 8963pub fn move_item(
 8964    source: &Entity<Pane>,
 8965    destination: &Entity<Pane>,
 8966    item_id_to_move: EntityId,
 8967    destination_index: usize,
 8968    activate: bool,
 8969    window: &mut Window,
 8970    cx: &mut App,
 8971) {
 8972    let Some((item_ix, item_handle)) = source
 8973        .read(cx)
 8974        .items()
 8975        .enumerate()
 8976        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8977        .map(|(ix, item)| (ix, item.clone()))
 8978    else {
 8979        // Tab was closed during drag
 8980        return;
 8981    };
 8982
 8983    if source != destination {
 8984        // Close item from previous pane
 8985        source.update(cx, |source, cx| {
 8986            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8987        });
 8988    }
 8989
 8990    // This automatically removes duplicate items in the pane
 8991    destination.update(cx, |destination, cx| {
 8992        destination.add_item_inner(
 8993            item_handle,
 8994            activate,
 8995            activate,
 8996            activate,
 8997            Some(destination_index),
 8998            window,
 8999            cx,
 9000        );
 9001        if activate {
 9002            window.focus(&destination.focus_handle(cx), cx)
 9003        }
 9004    });
 9005}
 9006
 9007pub fn move_active_item(
 9008    source: &Entity<Pane>,
 9009    destination: &Entity<Pane>,
 9010    focus_destination: bool,
 9011    close_if_empty: bool,
 9012    window: &mut Window,
 9013    cx: &mut App,
 9014) {
 9015    if source == destination {
 9016        return;
 9017    }
 9018    let Some(active_item) = source.read(cx).active_item() else {
 9019        return;
 9020    };
 9021    source.update(cx, |source_pane, cx| {
 9022        let item_id = active_item.item_id();
 9023        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9024        destination.update(cx, |target_pane, cx| {
 9025            target_pane.add_item(
 9026                active_item,
 9027                focus_destination,
 9028                focus_destination,
 9029                Some(target_pane.items_len()),
 9030                window,
 9031                cx,
 9032            );
 9033        });
 9034    });
 9035}
 9036
 9037pub fn clone_active_item(
 9038    workspace_id: Option<WorkspaceId>,
 9039    source: &Entity<Pane>,
 9040    destination: &Entity<Pane>,
 9041    focus_destination: bool,
 9042    window: &mut Window,
 9043    cx: &mut App,
 9044) {
 9045    if source == destination {
 9046        return;
 9047    }
 9048    let Some(active_item) = source.read(cx).active_item() else {
 9049        return;
 9050    };
 9051    if !active_item.can_split(cx) {
 9052        return;
 9053    }
 9054    let destination = destination.downgrade();
 9055    let task = active_item.clone_on_split(workspace_id, window, cx);
 9056    window
 9057        .spawn(cx, async move |cx| {
 9058            let Some(clone) = task.await else {
 9059                return;
 9060            };
 9061            destination
 9062                .update_in(cx, |target_pane, window, cx| {
 9063                    target_pane.add_item(
 9064                        clone,
 9065                        focus_destination,
 9066                        focus_destination,
 9067                        Some(target_pane.items_len()),
 9068                        window,
 9069                        cx,
 9070                    );
 9071                })
 9072                .log_err();
 9073        })
 9074        .detach();
 9075}
 9076
 9077#[derive(Debug)]
 9078pub struct WorkspacePosition {
 9079    pub window_bounds: Option<WindowBounds>,
 9080    pub display: Option<Uuid>,
 9081    pub centered_layout: bool,
 9082}
 9083
 9084pub fn remote_workspace_position_from_db(
 9085    connection_options: RemoteConnectionOptions,
 9086    paths_to_open: &[PathBuf],
 9087    cx: &App,
 9088) -> Task<Result<WorkspacePosition>> {
 9089    let paths = paths_to_open.to_vec();
 9090
 9091    cx.background_spawn(async move {
 9092        let remote_connection_id = persistence::DB
 9093            .get_or_create_remote_connection(connection_options)
 9094            .await
 9095            .context("fetching serialized ssh project")?;
 9096        let serialized_workspace =
 9097            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9098
 9099        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9100            (Some(WindowBounds::Windowed(bounds)), None)
 9101        } else {
 9102            let restorable_bounds = serialized_workspace
 9103                .as_ref()
 9104                .and_then(|workspace| {
 9105                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9106                })
 9107                .or_else(|| persistence::read_default_window_bounds());
 9108
 9109            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9110                (Some(serialized_bounds), Some(serialized_display))
 9111            } else {
 9112                (None, None)
 9113            }
 9114        };
 9115
 9116        let centered_layout = serialized_workspace
 9117            .as_ref()
 9118            .map(|w| w.centered_layout)
 9119            .unwrap_or(false);
 9120
 9121        Ok(WorkspacePosition {
 9122            window_bounds,
 9123            display,
 9124            centered_layout,
 9125        })
 9126    })
 9127}
 9128
 9129pub fn with_active_or_new_workspace(
 9130    cx: &mut App,
 9131    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9132) {
 9133    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 9134        Some(workspace) => {
 9135            cx.defer(move |cx| {
 9136                workspace
 9137                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 9138                    .log_err();
 9139            });
 9140        }
 9141        None => {
 9142            let app_state = AppState::global(cx);
 9143            if let Some(app_state) = app_state.upgrade() {
 9144                open_new(
 9145                    OpenOptions::default(),
 9146                    app_state,
 9147                    cx,
 9148                    move |workspace, window, cx| f(workspace, window, cx),
 9149                )
 9150                .detach_and_log_err(cx);
 9151            }
 9152        }
 9153    }
 9154}
 9155
 9156#[cfg(test)]
 9157mod tests {
 9158    use std::{cell::RefCell, rc::Rc};
 9159
 9160    use super::*;
 9161    use crate::{
 9162        dock::{PanelEvent, test::TestPanel},
 9163        item::{
 9164            ItemBufferKind, ItemEvent,
 9165            test::{TestItem, TestProjectItem},
 9166        },
 9167    };
 9168    use fs::FakeFs;
 9169    use gpui::{
 9170        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9171        UpdateGlobal, VisualTestContext, px,
 9172    };
 9173    use project::{Project, ProjectEntryId};
 9174    use serde_json::json;
 9175    use settings::SettingsStore;
 9176    use util::rel_path::rel_path;
 9177
 9178    #[gpui::test]
 9179    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9180        init_test(cx);
 9181
 9182        let fs = FakeFs::new(cx.executor());
 9183        let project = Project::test(fs, [], cx).await;
 9184        let (workspace, cx) =
 9185            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9186
 9187        // Adding an item with no ambiguity renders the tab without detail.
 9188        let item1 = cx.new(|cx| {
 9189            let mut item = TestItem::new(cx);
 9190            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9191            item
 9192        });
 9193        workspace.update_in(cx, |workspace, window, cx| {
 9194            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9195        });
 9196        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9197
 9198        // Adding an item that creates ambiguity increases the level of detail on
 9199        // both tabs.
 9200        let item2 = cx.new_window_entity(|_window, cx| {
 9201            let mut item = TestItem::new(cx);
 9202            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9203            item
 9204        });
 9205        workspace.update_in(cx, |workspace, window, cx| {
 9206            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9207        });
 9208        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9209        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9210
 9211        // Adding an item that creates ambiguity increases the level of detail only
 9212        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9213        // we stop at the highest detail available.
 9214        let item3 = cx.new(|cx| {
 9215            let mut item = TestItem::new(cx);
 9216            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9217            item
 9218        });
 9219        workspace.update_in(cx, |workspace, window, cx| {
 9220            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9221        });
 9222        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9223        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9224        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9225    }
 9226
 9227    #[gpui::test]
 9228    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9229        init_test(cx);
 9230
 9231        let fs = FakeFs::new(cx.executor());
 9232        fs.insert_tree(
 9233            "/root1",
 9234            json!({
 9235                "one.txt": "",
 9236                "two.txt": "",
 9237            }),
 9238        )
 9239        .await;
 9240        fs.insert_tree(
 9241            "/root2",
 9242            json!({
 9243                "three.txt": "",
 9244            }),
 9245        )
 9246        .await;
 9247
 9248        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9249        let (workspace, cx) =
 9250            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9251        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9252        let worktree_id = project.update(cx, |project, cx| {
 9253            project.worktrees(cx).next().unwrap().read(cx).id()
 9254        });
 9255
 9256        let item1 = cx.new(|cx| {
 9257            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9258        });
 9259        let item2 = cx.new(|cx| {
 9260            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9261        });
 9262
 9263        // Add an item to an empty pane
 9264        workspace.update_in(cx, |workspace, window, cx| {
 9265            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9266        });
 9267        project.update(cx, |project, cx| {
 9268            assert_eq!(
 9269                project.active_entry(),
 9270                project
 9271                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9272                    .map(|e| e.id)
 9273            );
 9274        });
 9275        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9276
 9277        // Add a second item to a non-empty pane
 9278        workspace.update_in(cx, |workspace, window, cx| {
 9279            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9280        });
 9281        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9282        project.update(cx, |project, cx| {
 9283            assert_eq!(
 9284                project.active_entry(),
 9285                project
 9286                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9287                    .map(|e| e.id)
 9288            );
 9289        });
 9290
 9291        // Close the active item
 9292        pane.update_in(cx, |pane, window, cx| {
 9293            pane.close_active_item(&Default::default(), window, cx)
 9294        })
 9295        .await
 9296        .unwrap();
 9297        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9298        project.update(cx, |project, cx| {
 9299            assert_eq!(
 9300                project.active_entry(),
 9301                project
 9302                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9303                    .map(|e| e.id)
 9304            );
 9305        });
 9306
 9307        // Add a project folder
 9308        project
 9309            .update(cx, |project, cx| {
 9310                project.find_or_create_worktree("root2", true, cx)
 9311            })
 9312            .await
 9313            .unwrap();
 9314        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9315
 9316        // Remove a project folder
 9317        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9318        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9319    }
 9320
 9321    #[gpui::test]
 9322    async fn test_close_window(cx: &mut TestAppContext) {
 9323        init_test(cx);
 9324
 9325        let fs = FakeFs::new(cx.executor());
 9326        fs.insert_tree("/root", json!({ "one": "" })).await;
 9327
 9328        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9329        let (workspace, cx) =
 9330            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9331
 9332        // When there are no dirty items, there's nothing to do.
 9333        let item1 = cx.new(TestItem::new);
 9334        workspace.update_in(cx, |w, window, cx| {
 9335            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9336        });
 9337        let task = workspace.update_in(cx, |w, window, cx| {
 9338            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9339        });
 9340        assert!(task.await.unwrap());
 9341
 9342        // When there are dirty untitled items, prompt to save each one. If the user
 9343        // cancels any prompt, then abort.
 9344        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9345        let item3 = cx.new(|cx| {
 9346            TestItem::new(cx)
 9347                .with_dirty(true)
 9348                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9349        });
 9350        workspace.update_in(cx, |w, window, cx| {
 9351            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9352            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9353        });
 9354        let task = workspace.update_in(cx, |w, window, cx| {
 9355            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9356        });
 9357        cx.executor().run_until_parked();
 9358        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9359        cx.executor().run_until_parked();
 9360        assert!(!cx.has_pending_prompt());
 9361        assert!(!task.await.unwrap());
 9362    }
 9363
 9364    #[gpui::test]
 9365    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9366        init_test(cx);
 9367
 9368        // Register TestItem as a serializable item
 9369        cx.update(|cx| {
 9370            register_serializable_item::<TestItem>(cx);
 9371        });
 9372
 9373        let fs = FakeFs::new(cx.executor());
 9374        fs.insert_tree("/root", json!({ "one": "" })).await;
 9375
 9376        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9377        let (workspace, cx) =
 9378            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9379
 9380        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9381        let item1 = cx.new(|cx| {
 9382            TestItem::new(cx)
 9383                .with_dirty(true)
 9384                .with_serialize(|| Some(Task::ready(Ok(()))))
 9385        });
 9386        let item2 = cx.new(|cx| {
 9387            TestItem::new(cx)
 9388                .with_dirty(true)
 9389                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9390                .with_serialize(|| Some(Task::ready(Ok(()))))
 9391        });
 9392        workspace.update_in(cx, |w, window, cx| {
 9393            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9394            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9395        });
 9396        let task = workspace.update_in(cx, |w, window, cx| {
 9397            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9398        });
 9399        assert!(task.await.unwrap());
 9400    }
 9401
 9402    #[gpui::test]
 9403    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9404        init_test(cx);
 9405
 9406        let fs = FakeFs::new(cx.executor());
 9407
 9408        let project = Project::test(fs, None, cx).await;
 9409        let (workspace, cx) =
 9410            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9411
 9412        let item1 = cx.new(|cx| {
 9413            TestItem::new(cx)
 9414                .with_dirty(true)
 9415                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9416        });
 9417        let item2 = cx.new(|cx| {
 9418            TestItem::new(cx)
 9419                .with_dirty(true)
 9420                .with_conflict(true)
 9421                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9422        });
 9423        let item3 = cx.new(|cx| {
 9424            TestItem::new(cx)
 9425                .with_dirty(true)
 9426                .with_conflict(true)
 9427                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9428        });
 9429        let item4 = cx.new(|cx| {
 9430            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9431                let project_item = TestProjectItem::new_untitled(cx);
 9432                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9433                project_item
 9434            }])
 9435        });
 9436        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9437            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9438            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9439            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9440            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9441            workspace.active_pane().clone()
 9442        });
 9443
 9444        let close_items = pane.update_in(cx, |pane, window, cx| {
 9445            pane.activate_item(1, true, true, window, cx);
 9446            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9447            let item1_id = item1.item_id();
 9448            let item3_id = item3.item_id();
 9449            let item4_id = item4.item_id();
 9450            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9451                [item1_id, item3_id, item4_id].contains(&id)
 9452            })
 9453        });
 9454        cx.executor().run_until_parked();
 9455
 9456        assert!(cx.has_pending_prompt());
 9457        cx.simulate_prompt_answer("Save all");
 9458
 9459        cx.executor().run_until_parked();
 9460
 9461        // Item 1 is saved. There's a prompt to save item 3.
 9462        pane.update(cx, |pane, cx| {
 9463            assert_eq!(item1.read(cx).save_count, 1);
 9464            assert_eq!(item1.read(cx).save_as_count, 0);
 9465            assert_eq!(item1.read(cx).reload_count, 0);
 9466            assert_eq!(pane.items_len(), 3);
 9467            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9468        });
 9469        assert!(cx.has_pending_prompt());
 9470
 9471        // Cancel saving item 3.
 9472        cx.simulate_prompt_answer("Discard");
 9473        cx.executor().run_until_parked();
 9474
 9475        // Item 3 is reloaded. There's a prompt to save item 4.
 9476        pane.update(cx, |pane, cx| {
 9477            assert_eq!(item3.read(cx).save_count, 0);
 9478            assert_eq!(item3.read(cx).save_as_count, 0);
 9479            assert_eq!(item3.read(cx).reload_count, 1);
 9480            assert_eq!(pane.items_len(), 2);
 9481            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9482        });
 9483
 9484        // There's a prompt for a path for item 4.
 9485        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9486        close_items.await.unwrap();
 9487
 9488        // The requested items are closed.
 9489        pane.update(cx, |pane, cx| {
 9490            assert_eq!(item4.read(cx).save_count, 0);
 9491            assert_eq!(item4.read(cx).save_as_count, 1);
 9492            assert_eq!(item4.read(cx).reload_count, 0);
 9493            assert_eq!(pane.items_len(), 1);
 9494            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9495        });
 9496    }
 9497
 9498    #[gpui::test]
 9499    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9500        init_test(cx);
 9501
 9502        let fs = FakeFs::new(cx.executor());
 9503        let project = Project::test(fs, [], cx).await;
 9504        let (workspace, cx) =
 9505            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9506
 9507        // Create several workspace items with single project entries, and two
 9508        // workspace items with multiple project entries.
 9509        let single_entry_items = (0..=4)
 9510            .map(|project_entry_id| {
 9511                cx.new(|cx| {
 9512                    TestItem::new(cx)
 9513                        .with_dirty(true)
 9514                        .with_project_items(&[dirty_project_item(
 9515                            project_entry_id,
 9516                            &format!("{project_entry_id}.txt"),
 9517                            cx,
 9518                        )])
 9519                })
 9520            })
 9521            .collect::<Vec<_>>();
 9522        let item_2_3 = cx.new(|cx| {
 9523            TestItem::new(cx)
 9524                .with_dirty(true)
 9525                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9526                .with_project_items(&[
 9527                    single_entry_items[2].read(cx).project_items[0].clone(),
 9528                    single_entry_items[3].read(cx).project_items[0].clone(),
 9529                ])
 9530        });
 9531        let item_3_4 = cx.new(|cx| {
 9532            TestItem::new(cx)
 9533                .with_dirty(true)
 9534                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9535                .with_project_items(&[
 9536                    single_entry_items[3].read(cx).project_items[0].clone(),
 9537                    single_entry_items[4].read(cx).project_items[0].clone(),
 9538                ])
 9539        });
 9540
 9541        // Create two panes that contain the following project entries:
 9542        //   left pane:
 9543        //     multi-entry items:   (2, 3)
 9544        //     single-entry items:  0, 2, 3, 4
 9545        //   right pane:
 9546        //     single-entry items:  4, 1
 9547        //     multi-entry items:   (3, 4)
 9548        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9549            let left_pane = workspace.active_pane().clone();
 9550            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9551            workspace.add_item_to_active_pane(
 9552                single_entry_items[0].boxed_clone(),
 9553                None,
 9554                true,
 9555                window,
 9556                cx,
 9557            );
 9558            workspace.add_item_to_active_pane(
 9559                single_entry_items[2].boxed_clone(),
 9560                None,
 9561                true,
 9562                window,
 9563                cx,
 9564            );
 9565            workspace.add_item_to_active_pane(
 9566                single_entry_items[3].boxed_clone(),
 9567                None,
 9568                true,
 9569                window,
 9570                cx,
 9571            );
 9572            workspace.add_item_to_active_pane(
 9573                single_entry_items[4].boxed_clone(),
 9574                None,
 9575                true,
 9576                window,
 9577                cx,
 9578            );
 9579
 9580            let right_pane =
 9581                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9582
 9583            let boxed_clone = single_entry_items[1].boxed_clone();
 9584            let right_pane = window.spawn(cx, async move |cx| {
 9585                right_pane.await.inspect(|right_pane| {
 9586                    right_pane
 9587                        .update_in(cx, |pane, window, cx| {
 9588                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9589                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9590                        })
 9591                        .unwrap();
 9592                })
 9593            });
 9594
 9595            (left_pane, right_pane)
 9596        });
 9597        let right_pane = right_pane.await.unwrap();
 9598        cx.focus(&right_pane);
 9599
 9600        let close = right_pane.update_in(cx, |pane, window, cx| {
 9601            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9602                .unwrap()
 9603        });
 9604        cx.executor().run_until_parked();
 9605
 9606        let msg = cx.pending_prompt().unwrap().0;
 9607        assert!(msg.contains("1.txt"));
 9608        assert!(!msg.contains("2.txt"));
 9609        assert!(!msg.contains("3.txt"));
 9610        assert!(!msg.contains("4.txt"));
 9611
 9612        // With best-effort close, cancelling item 1 keeps it open but items 4
 9613        // and (3,4) still close since their entries exist in left pane.
 9614        cx.simulate_prompt_answer("Cancel");
 9615        close.await;
 9616
 9617        right_pane.read_with(cx, |pane, _| {
 9618            assert_eq!(pane.items_len(), 1);
 9619        });
 9620
 9621        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9622        left_pane
 9623            .update_in(cx, |left_pane, window, cx| {
 9624                left_pane.close_item_by_id(
 9625                    single_entry_items[3].entity_id(),
 9626                    SaveIntent::Skip,
 9627                    window,
 9628                    cx,
 9629                )
 9630            })
 9631            .await
 9632            .unwrap();
 9633
 9634        let close = left_pane.update_in(cx, |pane, window, cx| {
 9635            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9636                .unwrap()
 9637        });
 9638        cx.executor().run_until_parked();
 9639
 9640        let details = cx.pending_prompt().unwrap().1;
 9641        assert!(details.contains("0.txt"));
 9642        assert!(details.contains("3.txt"));
 9643        assert!(details.contains("4.txt"));
 9644        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9645        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9646        // assert!(!details.contains("2.txt"));
 9647
 9648        cx.simulate_prompt_answer("Save all");
 9649        cx.executor().run_until_parked();
 9650        close.await;
 9651
 9652        left_pane.read_with(cx, |pane, _| {
 9653            assert_eq!(pane.items_len(), 0);
 9654        });
 9655    }
 9656
 9657    #[gpui::test]
 9658    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9659        init_test(cx);
 9660
 9661        let fs = FakeFs::new(cx.executor());
 9662        let project = Project::test(fs, [], cx).await;
 9663        let (workspace, cx) =
 9664            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9665        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9666
 9667        let item = cx.new(|cx| {
 9668            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9669        });
 9670        let item_id = item.entity_id();
 9671        workspace.update_in(cx, |workspace, window, cx| {
 9672            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9673        });
 9674
 9675        // Autosave on window change.
 9676        item.update(cx, |item, cx| {
 9677            SettingsStore::update_global(cx, |settings, cx| {
 9678                settings.update_user_settings(cx, |settings| {
 9679                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9680                })
 9681            });
 9682            item.is_dirty = true;
 9683        });
 9684
 9685        // Deactivating the window saves the file.
 9686        cx.deactivate_window();
 9687        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9688
 9689        // Re-activating the window doesn't save the file.
 9690        cx.update(|window, _| window.activate_window());
 9691        cx.executor().run_until_parked();
 9692        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9693
 9694        // Autosave on focus change.
 9695        item.update_in(cx, |item, window, cx| {
 9696            cx.focus_self(window);
 9697            SettingsStore::update_global(cx, |settings, cx| {
 9698                settings.update_user_settings(cx, |settings| {
 9699                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9700                })
 9701            });
 9702            item.is_dirty = true;
 9703        });
 9704        // Blurring the item saves the file.
 9705        item.update_in(cx, |_, window, _| window.blur());
 9706        cx.executor().run_until_parked();
 9707        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9708
 9709        // Deactivating the window still saves the file.
 9710        item.update_in(cx, |item, window, cx| {
 9711            cx.focus_self(window);
 9712            item.is_dirty = true;
 9713        });
 9714        cx.deactivate_window();
 9715        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9716
 9717        // Autosave after delay.
 9718        item.update(cx, |item, cx| {
 9719            SettingsStore::update_global(cx, |settings, cx| {
 9720                settings.update_user_settings(cx, |settings| {
 9721                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9722                        milliseconds: 500.into(),
 9723                    });
 9724                })
 9725            });
 9726            item.is_dirty = true;
 9727            cx.emit(ItemEvent::Edit);
 9728        });
 9729
 9730        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9731        cx.executor().advance_clock(Duration::from_millis(250));
 9732        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9733
 9734        // After delay expires, the file is saved.
 9735        cx.executor().advance_clock(Duration::from_millis(250));
 9736        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9737
 9738        // Autosave after delay, should save earlier than delay if tab is closed
 9739        item.update(cx, |item, cx| {
 9740            item.is_dirty = true;
 9741            cx.emit(ItemEvent::Edit);
 9742        });
 9743        cx.executor().advance_clock(Duration::from_millis(250));
 9744        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9745
 9746        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9747        pane.update_in(cx, |pane, window, cx| {
 9748            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9749        })
 9750        .await
 9751        .unwrap();
 9752        assert!(!cx.has_pending_prompt());
 9753        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9754
 9755        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9756        workspace.update_in(cx, |workspace, window, cx| {
 9757            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9758        });
 9759        item.update_in(cx, |item, _window, cx| {
 9760            item.is_dirty = true;
 9761            for project_item in &mut item.project_items {
 9762                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9763            }
 9764        });
 9765        cx.run_until_parked();
 9766        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9767
 9768        // Autosave on focus change, ensuring closing the tab counts as such.
 9769        item.update(cx, |item, cx| {
 9770            SettingsStore::update_global(cx, |settings, cx| {
 9771                settings.update_user_settings(cx, |settings| {
 9772                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9773                })
 9774            });
 9775            item.is_dirty = true;
 9776            for project_item in &mut item.project_items {
 9777                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9778            }
 9779        });
 9780
 9781        pane.update_in(cx, |pane, window, cx| {
 9782            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9783        })
 9784        .await
 9785        .unwrap();
 9786        assert!(!cx.has_pending_prompt());
 9787        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9788
 9789        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9790        workspace.update_in(cx, |workspace, window, cx| {
 9791            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9792        });
 9793        item.update_in(cx, |item, window, cx| {
 9794            item.project_items[0].update(cx, |item, _| {
 9795                item.entry_id = None;
 9796            });
 9797            item.is_dirty = true;
 9798            window.blur();
 9799        });
 9800        cx.run_until_parked();
 9801        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9802
 9803        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9804        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9805            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9806        });
 9807        cx.run_until_parked();
 9808        assert!(cx.has_pending_prompt());
 9809        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9810    }
 9811
 9812    #[gpui::test]
 9813    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9814        init_test(cx);
 9815
 9816        let fs = FakeFs::new(cx.executor());
 9817
 9818        let project = Project::test(fs, [], cx).await;
 9819        let (workspace, cx) =
 9820            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9821
 9822        let item = cx.new(|cx| {
 9823            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9824        });
 9825        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9826        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9827        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9828
 9829        workspace.update_in(cx, |workspace, window, cx| {
 9830            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9831            let toolbar_notification_count = toolbar_notify_count.clone();
 9832            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9833                *toolbar_notification_count.borrow_mut() += 1
 9834            })
 9835            .detach();
 9836        });
 9837
 9838        pane.read_with(cx, |pane, _| {
 9839            assert!(!pane.can_navigate_backward());
 9840            assert!(!pane.can_navigate_forward());
 9841        });
 9842
 9843        item.update_in(cx, |item, _, cx| {
 9844            item.set_state("one".to_string(), cx);
 9845        });
 9846
 9847        // Toolbar must be notified to re-render the navigation buttons
 9848        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9849
 9850        pane.read_with(cx, |pane, _| {
 9851            assert!(pane.can_navigate_backward());
 9852            assert!(!pane.can_navigate_forward());
 9853        });
 9854
 9855        workspace
 9856            .update_in(cx, |workspace, window, cx| {
 9857                workspace.go_back(pane.downgrade(), window, cx)
 9858            })
 9859            .await
 9860            .unwrap();
 9861
 9862        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9863        pane.read_with(cx, |pane, _| {
 9864            assert!(!pane.can_navigate_backward());
 9865            assert!(pane.can_navigate_forward());
 9866        });
 9867    }
 9868
 9869    #[gpui::test]
 9870    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9871        init_test(cx);
 9872        let fs = FakeFs::new(cx.executor());
 9873
 9874        let project = Project::test(fs, [], cx).await;
 9875        let (workspace, cx) =
 9876            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9877
 9878        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9879            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9880            workspace.add_panel(panel.clone(), window, cx);
 9881
 9882            workspace
 9883                .right_dock()
 9884                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9885
 9886            panel
 9887        });
 9888
 9889        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9890        pane.update_in(cx, |pane, window, cx| {
 9891            let item = cx.new(TestItem::new);
 9892            pane.add_item(Box::new(item), true, true, None, window, cx);
 9893        });
 9894
 9895        // Transfer focus from center to panel
 9896        workspace.update_in(cx, |workspace, window, cx| {
 9897            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9898        });
 9899
 9900        workspace.update_in(cx, |workspace, window, cx| {
 9901            assert!(workspace.right_dock().read(cx).is_open());
 9902            assert!(!panel.is_zoomed(window, cx));
 9903            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9904        });
 9905
 9906        // Transfer focus from panel to center
 9907        workspace.update_in(cx, |workspace, window, cx| {
 9908            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9909        });
 9910
 9911        workspace.update_in(cx, |workspace, window, cx| {
 9912            assert!(workspace.right_dock().read(cx).is_open());
 9913            assert!(!panel.is_zoomed(window, cx));
 9914            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9915        });
 9916
 9917        // Close the dock
 9918        workspace.update_in(cx, |workspace, window, cx| {
 9919            workspace.toggle_dock(DockPosition::Right, window, cx);
 9920        });
 9921
 9922        workspace.update_in(cx, |workspace, window, cx| {
 9923            assert!(!workspace.right_dock().read(cx).is_open());
 9924            assert!(!panel.is_zoomed(window, cx));
 9925            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9926        });
 9927
 9928        // Open the dock
 9929        workspace.update_in(cx, |workspace, window, cx| {
 9930            workspace.toggle_dock(DockPosition::Right, window, cx);
 9931        });
 9932
 9933        workspace.update_in(cx, |workspace, window, cx| {
 9934            assert!(workspace.right_dock().read(cx).is_open());
 9935            assert!(!panel.is_zoomed(window, cx));
 9936            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9937        });
 9938
 9939        // Focus and zoom panel
 9940        panel.update_in(cx, |panel, window, cx| {
 9941            cx.focus_self(window);
 9942            panel.set_zoomed(true, window, cx)
 9943        });
 9944
 9945        workspace.update_in(cx, |workspace, window, cx| {
 9946            assert!(workspace.right_dock().read(cx).is_open());
 9947            assert!(panel.is_zoomed(window, cx));
 9948            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9949        });
 9950
 9951        // Transfer focus to the center closes the dock
 9952        workspace.update_in(cx, |workspace, window, cx| {
 9953            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9954        });
 9955
 9956        workspace.update_in(cx, |workspace, window, cx| {
 9957            assert!(!workspace.right_dock().read(cx).is_open());
 9958            assert!(panel.is_zoomed(window, cx));
 9959            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9960        });
 9961
 9962        // Transferring focus back to the panel keeps it zoomed
 9963        workspace.update_in(cx, |workspace, window, cx| {
 9964            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9965        });
 9966
 9967        workspace.update_in(cx, |workspace, window, cx| {
 9968            assert!(workspace.right_dock().read(cx).is_open());
 9969            assert!(panel.is_zoomed(window, cx));
 9970            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9971        });
 9972
 9973        // Close the dock while it is zoomed
 9974        workspace.update_in(cx, |workspace, window, cx| {
 9975            workspace.toggle_dock(DockPosition::Right, window, cx)
 9976        });
 9977
 9978        workspace.update_in(cx, |workspace, window, cx| {
 9979            assert!(!workspace.right_dock().read(cx).is_open());
 9980            assert!(panel.is_zoomed(window, cx));
 9981            assert!(workspace.zoomed.is_none());
 9982            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9983        });
 9984
 9985        // Opening the dock, when it's zoomed, retains focus
 9986        workspace.update_in(cx, |workspace, window, cx| {
 9987            workspace.toggle_dock(DockPosition::Right, window, cx)
 9988        });
 9989
 9990        workspace.update_in(cx, |workspace, window, cx| {
 9991            assert!(workspace.right_dock().read(cx).is_open());
 9992            assert!(panel.is_zoomed(window, cx));
 9993            assert!(workspace.zoomed.is_some());
 9994            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9995        });
 9996
 9997        // Unzoom and close the panel, zoom the active pane.
 9998        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9999        workspace.update_in(cx, |workspace, window, cx| {
10000            workspace.toggle_dock(DockPosition::Right, window, cx)
10001        });
10002        pane.update_in(cx, |pane, window, cx| {
10003            pane.toggle_zoom(&Default::default(), window, cx)
10004        });
10005
10006        // Opening a dock unzooms the pane.
10007        workspace.update_in(cx, |workspace, window, cx| {
10008            workspace.toggle_dock(DockPosition::Right, window, cx)
10009        });
10010        workspace.update_in(cx, |workspace, window, cx| {
10011            let pane = pane.read(cx);
10012            assert!(!pane.is_zoomed());
10013            assert!(!pane.focus_handle(cx).is_focused(window));
10014            assert!(workspace.right_dock().read(cx).is_open());
10015            assert!(workspace.zoomed.is_none());
10016        });
10017    }
10018
10019    #[gpui::test]
10020    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
10021        init_test(cx);
10022        let fs = FakeFs::new(cx.executor());
10023
10024        let project = Project::test(fs, [], cx).await;
10025        let (workspace, cx) =
10026            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10027
10028        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
10029            workspace.active_pane().clone()
10030        });
10031
10032        // Add an item to the pane so it can be zoomed
10033        workspace.update_in(cx, |workspace, window, cx| {
10034            let item = cx.new(TestItem::new);
10035            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
10036        });
10037
10038        // Initially not zoomed
10039        workspace.update_in(cx, |workspace, _window, cx| {
10040            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
10041            assert!(
10042                workspace.zoomed.is_none(),
10043                "Workspace should track no zoomed pane"
10044            );
10045            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
10046        });
10047
10048        // Zoom In
10049        pane.update_in(cx, |pane, window, cx| {
10050            pane.zoom_in(&crate::ZoomIn, window, cx);
10051        });
10052
10053        workspace.update_in(cx, |workspace, window, cx| {
10054            assert!(
10055                pane.read(cx).is_zoomed(),
10056                "Pane should be zoomed after ZoomIn"
10057            );
10058            assert!(
10059                workspace.zoomed.is_some(),
10060                "Workspace should track the zoomed pane"
10061            );
10062            assert!(
10063                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10064                "ZoomIn should focus the pane"
10065            );
10066        });
10067
10068        // Zoom In again is a no-op
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!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
10075            assert!(
10076                workspace.zoomed.is_some(),
10077                "Workspace still tracks zoomed pane"
10078            );
10079            assert!(
10080                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10081                "Pane remains focused after repeated ZoomIn"
10082            );
10083        });
10084
10085        // Zoom Out
10086        pane.update_in(cx, |pane, window, cx| {
10087            pane.zoom_out(&crate::ZoomOut, window, cx);
10088        });
10089
10090        workspace.update_in(cx, |workspace, _window, cx| {
10091            assert!(
10092                !pane.read(cx).is_zoomed(),
10093                "Pane should unzoom after ZoomOut"
10094            );
10095            assert!(
10096                workspace.zoomed.is_none(),
10097                "Workspace clears zoom tracking after ZoomOut"
10098            );
10099        });
10100
10101        // Zoom Out again is a no-op
10102        pane.update_in(cx, |pane, window, cx| {
10103            pane.zoom_out(&crate::ZoomOut, window, cx);
10104        });
10105
10106        workspace.update_in(cx, |workspace, _window, cx| {
10107            assert!(
10108                !pane.read(cx).is_zoomed(),
10109                "Second ZoomOut keeps pane unzoomed"
10110            );
10111            assert!(
10112                workspace.zoomed.is_none(),
10113                "Workspace remains without zoomed pane"
10114            );
10115        });
10116    }
10117
10118    #[gpui::test]
10119    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
10120        init_test(cx);
10121        let fs = FakeFs::new(cx.executor());
10122
10123        let project = Project::test(fs, [], cx).await;
10124        let (workspace, cx) =
10125            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10126        workspace.update_in(cx, |workspace, window, cx| {
10127            // Open two docks
10128            let left_dock = workspace.dock_at_position(DockPosition::Left);
10129            let right_dock = workspace.dock_at_position(DockPosition::Right);
10130
10131            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10132            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10133
10134            assert!(left_dock.read(cx).is_open());
10135            assert!(right_dock.read(cx).is_open());
10136        });
10137
10138        workspace.update_in(cx, |workspace, window, cx| {
10139            // Toggle all docks - should close both
10140            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10141
10142            let left_dock = workspace.dock_at_position(DockPosition::Left);
10143            let right_dock = workspace.dock_at_position(DockPosition::Right);
10144            assert!(!left_dock.read(cx).is_open());
10145            assert!(!right_dock.read(cx).is_open());
10146        });
10147
10148        workspace.update_in(cx, |workspace, window, cx| {
10149            // Toggle again - should reopen both
10150            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10151
10152            let left_dock = workspace.dock_at_position(DockPosition::Left);
10153            let right_dock = workspace.dock_at_position(DockPosition::Right);
10154            assert!(left_dock.read(cx).is_open());
10155            assert!(right_dock.read(cx).is_open());
10156        });
10157    }
10158
10159    #[gpui::test]
10160    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10161        init_test(cx);
10162        let fs = FakeFs::new(cx.executor());
10163
10164        let project = Project::test(fs, [], cx).await;
10165        let (workspace, cx) =
10166            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10167        workspace.update_in(cx, |workspace, window, cx| {
10168            // Open two docks
10169            let left_dock = workspace.dock_at_position(DockPosition::Left);
10170            let right_dock = workspace.dock_at_position(DockPosition::Right);
10171
10172            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10173            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10174
10175            assert!(left_dock.read(cx).is_open());
10176            assert!(right_dock.read(cx).is_open());
10177        });
10178
10179        workspace.update_in(cx, |workspace, window, cx| {
10180            // Close them manually
10181            workspace.toggle_dock(DockPosition::Left, window, cx);
10182            workspace.toggle_dock(DockPosition::Right, window, cx);
10183
10184            let left_dock = workspace.dock_at_position(DockPosition::Left);
10185            let right_dock = workspace.dock_at_position(DockPosition::Right);
10186            assert!(!left_dock.read(cx).is_open());
10187            assert!(!right_dock.read(cx).is_open());
10188        });
10189
10190        workspace.update_in(cx, |workspace, window, cx| {
10191            // Toggle all docks - only last closed (right dock) should reopen
10192            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10193
10194            let left_dock = workspace.dock_at_position(DockPosition::Left);
10195            let right_dock = workspace.dock_at_position(DockPosition::Right);
10196            assert!(!left_dock.read(cx).is_open());
10197            assert!(right_dock.read(cx).is_open());
10198        });
10199    }
10200
10201    #[gpui::test]
10202    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10203        init_test(cx);
10204        let fs = FakeFs::new(cx.executor());
10205        let project = Project::test(fs, [], cx).await;
10206        let (workspace, cx) =
10207            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10208
10209        // Open two docks (left and right) with one panel each
10210        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10211            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10212            workspace.add_panel(left_panel.clone(), window, cx);
10213
10214            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10215            workspace.add_panel(right_panel.clone(), window, cx);
10216
10217            workspace.toggle_dock(DockPosition::Left, window, cx);
10218            workspace.toggle_dock(DockPosition::Right, window, cx);
10219
10220            // Verify initial state
10221            assert!(
10222                workspace.left_dock().read(cx).is_open(),
10223                "Left dock should be open"
10224            );
10225            assert_eq!(
10226                workspace
10227                    .left_dock()
10228                    .read(cx)
10229                    .visible_panel()
10230                    .unwrap()
10231                    .panel_id(),
10232                left_panel.panel_id(),
10233                "Left panel should be visible in left dock"
10234            );
10235            assert!(
10236                workspace.right_dock().read(cx).is_open(),
10237                "Right dock should be open"
10238            );
10239            assert_eq!(
10240                workspace
10241                    .right_dock()
10242                    .read(cx)
10243                    .visible_panel()
10244                    .unwrap()
10245                    .panel_id(),
10246                right_panel.panel_id(),
10247                "Right panel should be visible in right dock"
10248            );
10249            assert!(
10250                !workspace.bottom_dock().read(cx).is_open(),
10251                "Bottom dock should be closed"
10252            );
10253
10254            (left_panel, right_panel)
10255        });
10256
10257        // Focus the left panel and move it to the next position (bottom dock)
10258        workspace.update_in(cx, |workspace, window, cx| {
10259            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10260            assert!(
10261                left_panel.read(cx).focus_handle(cx).is_focused(window),
10262                "Left panel should be focused"
10263            );
10264        });
10265
10266        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10267
10268        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10269        workspace.update(cx, |workspace, cx| {
10270            assert!(
10271                !workspace.left_dock().read(cx).is_open(),
10272                "Left dock should be closed"
10273            );
10274            assert!(
10275                workspace.bottom_dock().read(cx).is_open(),
10276                "Bottom dock should now be open"
10277            );
10278            assert_eq!(
10279                left_panel.read(cx).position,
10280                DockPosition::Bottom,
10281                "Left panel should now be in the bottom dock"
10282            );
10283            assert_eq!(
10284                workspace
10285                    .bottom_dock()
10286                    .read(cx)
10287                    .visible_panel()
10288                    .unwrap()
10289                    .panel_id(),
10290                left_panel.panel_id(),
10291                "Left panel should be the visible panel in the bottom dock"
10292            );
10293        });
10294
10295        // Toggle all docks off
10296        workspace.update_in(cx, |workspace, window, cx| {
10297            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10298            assert!(
10299                !workspace.left_dock().read(cx).is_open(),
10300                "Left dock should be closed"
10301            );
10302            assert!(
10303                !workspace.right_dock().read(cx).is_open(),
10304                "Right dock should be closed"
10305            );
10306            assert!(
10307                !workspace.bottom_dock().read(cx).is_open(),
10308                "Bottom dock should be closed"
10309            );
10310        });
10311
10312        // Toggle all docks back on and verify positions are restored
10313        workspace.update_in(cx, |workspace, window, cx| {
10314            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10315            assert!(
10316                !workspace.left_dock().read(cx).is_open(),
10317                "Left dock should remain closed"
10318            );
10319            assert!(
10320                workspace.right_dock().read(cx).is_open(),
10321                "Right dock should remain open"
10322            );
10323            assert!(
10324                workspace.bottom_dock().read(cx).is_open(),
10325                "Bottom dock should remain open"
10326            );
10327            assert_eq!(
10328                left_panel.read(cx).position,
10329                DockPosition::Bottom,
10330                "Left panel should remain in the bottom dock"
10331            );
10332            assert_eq!(
10333                right_panel.read(cx).position,
10334                DockPosition::Right,
10335                "Right panel should remain in the right dock"
10336            );
10337            assert_eq!(
10338                workspace
10339                    .bottom_dock()
10340                    .read(cx)
10341                    .visible_panel()
10342                    .unwrap()
10343                    .panel_id(),
10344                left_panel.panel_id(),
10345                "Left panel should be the visible panel in the right dock"
10346            );
10347        });
10348    }
10349
10350    #[gpui::test]
10351    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10352        init_test(cx);
10353
10354        let fs = FakeFs::new(cx.executor());
10355
10356        let project = Project::test(fs, None, cx).await;
10357        let (workspace, cx) =
10358            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10359
10360        // Let's arrange the panes like this:
10361        //
10362        // +-----------------------+
10363        // |         top           |
10364        // +------+--------+-------+
10365        // | left | center | right |
10366        // +------+--------+-------+
10367        // |        bottom         |
10368        // +-----------------------+
10369
10370        let top_item = cx.new(|cx| {
10371            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10372        });
10373        let bottom_item = cx.new(|cx| {
10374            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10375        });
10376        let left_item = cx.new(|cx| {
10377            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10378        });
10379        let right_item = cx.new(|cx| {
10380            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10381        });
10382        let center_item = cx.new(|cx| {
10383            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10384        });
10385
10386        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10387            let top_pane_id = workspace.active_pane().entity_id();
10388            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10389            workspace.split_pane(
10390                workspace.active_pane().clone(),
10391                SplitDirection::Down,
10392                window,
10393                cx,
10394            );
10395            top_pane_id
10396        });
10397        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10398            let bottom_pane_id = workspace.active_pane().entity_id();
10399            workspace.add_item_to_active_pane(
10400                Box::new(bottom_item.clone()),
10401                None,
10402                false,
10403                window,
10404                cx,
10405            );
10406            workspace.split_pane(
10407                workspace.active_pane().clone(),
10408                SplitDirection::Up,
10409                window,
10410                cx,
10411            );
10412            bottom_pane_id
10413        });
10414        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10415            let left_pane_id = workspace.active_pane().entity_id();
10416            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10417            workspace.split_pane(
10418                workspace.active_pane().clone(),
10419                SplitDirection::Right,
10420                window,
10421                cx,
10422            );
10423            left_pane_id
10424        });
10425        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10426            let right_pane_id = workspace.active_pane().entity_id();
10427            workspace.add_item_to_active_pane(
10428                Box::new(right_item.clone()),
10429                None,
10430                false,
10431                window,
10432                cx,
10433            );
10434            workspace.split_pane(
10435                workspace.active_pane().clone(),
10436                SplitDirection::Left,
10437                window,
10438                cx,
10439            );
10440            right_pane_id
10441        });
10442        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10443            let center_pane_id = workspace.active_pane().entity_id();
10444            workspace.add_item_to_active_pane(
10445                Box::new(center_item.clone()),
10446                None,
10447                false,
10448                window,
10449                cx,
10450            );
10451            center_pane_id
10452        });
10453        cx.executor().run_until_parked();
10454
10455        workspace.update_in(cx, |workspace, window, cx| {
10456            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10457
10458            // Join into next from center pane into right
10459            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10460        });
10461
10462        workspace.update_in(cx, |workspace, window, cx| {
10463            let active_pane = workspace.active_pane();
10464            assert_eq!(right_pane_id, active_pane.entity_id());
10465            assert_eq!(2, active_pane.read(cx).items_len());
10466            let item_ids_in_pane =
10467                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10468            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10469            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10470
10471            // Join into next from right pane into bottom
10472            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10473        });
10474
10475        workspace.update_in(cx, |workspace, window, cx| {
10476            let active_pane = workspace.active_pane();
10477            assert_eq!(bottom_pane_id, active_pane.entity_id());
10478            assert_eq!(3, active_pane.read(cx).items_len());
10479            let item_ids_in_pane =
10480                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10481            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10482            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10483            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10484
10485            // Join into next from bottom pane into left
10486            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10487        });
10488
10489        workspace.update_in(cx, |workspace, window, cx| {
10490            let active_pane = workspace.active_pane();
10491            assert_eq!(left_pane_id, active_pane.entity_id());
10492            assert_eq!(4, active_pane.read(cx).items_len());
10493            let item_ids_in_pane =
10494                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10495            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10496            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10497            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10498            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10499
10500            // Join into next from left pane into top
10501            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10502        });
10503
10504        workspace.update_in(cx, |workspace, window, cx| {
10505            let active_pane = workspace.active_pane();
10506            assert_eq!(top_pane_id, active_pane.entity_id());
10507            assert_eq!(5, active_pane.read(cx).items_len());
10508            let item_ids_in_pane =
10509                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10510            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10511            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10512            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10513            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10514            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10515
10516            // Single pane left: no-op
10517            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10518        });
10519
10520        workspace.update(cx, |workspace, _cx| {
10521            let active_pane = workspace.active_pane();
10522            assert_eq!(top_pane_id, active_pane.entity_id());
10523        });
10524    }
10525
10526    fn add_an_item_to_active_pane(
10527        cx: &mut VisualTestContext,
10528        workspace: &Entity<Workspace>,
10529        item_id: u64,
10530    ) -> Entity<TestItem> {
10531        let item = cx.new(|cx| {
10532            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10533                item_id,
10534                "item{item_id}.txt",
10535                cx,
10536            )])
10537        });
10538        workspace.update_in(cx, |workspace, window, cx| {
10539            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10540        });
10541        item
10542    }
10543
10544    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10545        workspace.update_in(cx, |workspace, window, cx| {
10546            workspace.split_pane(
10547                workspace.active_pane().clone(),
10548                SplitDirection::Right,
10549                window,
10550                cx,
10551            )
10552        })
10553    }
10554
10555    #[gpui::test]
10556    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10557        init_test(cx);
10558        let fs = FakeFs::new(cx.executor());
10559        let project = Project::test(fs, None, cx).await;
10560        let (workspace, cx) =
10561            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10562
10563        add_an_item_to_active_pane(cx, &workspace, 1);
10564        split_pane(cx, &workspace);
10565        add_an_item_to_active_pane(cx, &workspace, 2);
10566        split_pane(cx, &workspace); // empty pane
10567        split_pane(cx, &workspace);
10568        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10569
10570        cx.executor().run_until_parked();
10571
10572        workspace.update(cx, |workspace, cx| {
10573            let num_panes = workspace.panes().len();
10574            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10575            let active_item = workspace
10576                .active_pane()
10577                .read(cx)
10578                .active_item()
10579                .expect("item is in focus");
10580
10581            assert_eq!(num_panes, 4);
10582            assert_eq!(num_items_in_current_pane, 1);
10583            assert_eq!(active_item.item_id(), last_item.item_id());
10584        });
10585
10586        workspace.update_in(cx, |workspace, window, cx| {
10587            workspace.join_all_panes(window, cx);
10588        });
10589
10590        workspace.update(cx, |workspace, cx| {
10591            let num_panes = workspace.panes().len();
10592            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10593            let active_item = workspace
10594                .active_pane()
10595                .read(cx)
10596                .active_item()
10597                .expect("item is in focus");
10598
10599            assert_eq!(num_panes, 1);
10600            assert_eq!(num_items_in_current_pane, 3);
10601            assert_eq!(active_item.item_id(), last_item.item_id());
10602        });
10603    }
10604    struct TestModal(FocusHandle);
10605
10606    impl TestModal {
10607        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10608            Self(cx.focus_handle())
10609        }
10610    }
10611
10612    impl EventEmitter<DismissEvent> for TestModal {}
10613
10614    impl Focusable for TestModal {
10615        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10616            self.0.clone()
10617        }
10618    }
10619
10620    impl ModalView for TestModal {}
10621
10622    impl Render for TestModal {
10623        fn render(
10624            &mut self,
10625            _window: &mut Window,
10626            _cx: &mut Context<TestModal>,
10627        ) -> impl IntoElement {
10628            div().track_focus(&self.0)
10629        }
10630    }
10631
10632    #[gpui::test]
10633    async fn test_panels(cx: &mut gpui::TestAppContext) {
10634        init_test(cx);
10635        let fs = FakeFs::new(cx.executor());
10636
10637        let project = Project::test(fs, [], cx).await;
10638        let (workspace, cx) =
10639            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10640
10641        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10642            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10643            workspace.add_panel(panel_1.clone(), window, cx);
10644            workspace.toggle_dock(DockPosition::Left, window, cx);
10645            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10646            workspace.add_panel(panel_2.clone(), window, cx);
10647            workspace.toggle_dock(DockPosition::Right, window, cx);
10648
10649            let left_dock = workspace.left_dock();
10650            assert_eq!(
10651                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10652                panel_1.panel_id()
10653            );
10654            assert_eq!(
10655                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10656                panel_1.size(window, cx)
10657            );
10658
10659            left_dock.update(cx, |left_dock, cx| {
10660                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10661            });
10662            assert_eq!(
10663                workspace
10664                    .right_dock()
10665                    .read(cx)
10666                    .visible_panel()
10667                    .unwrap()
10668                    .panel_id(),
10669                panel_2.panel_id(),
10670            );
10671
10672            (panel_1, panel_2)
10673        });
10674
10675        // Move panel_1 to the right
10676        panel_1.update_in(cx, |panel_1, window, cx| {
10677            panel_1.set_position(DockPosition::Right, window, cx)
10678        });
10679
10680        workspace.update_in(cx, |workspace, window, cx| {
10681            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10682            // Since it was the only panel on the left, the left dock should now be closed.
10683            assert!(!workspace.left_dock().read(cx).is_open());
10684            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10685            let right_dock = workspace.right_dock();
10686            assert_eq!(
10687                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10688                panel_1.panel_id()
10689            );
10690            assert_eq!(
10691                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10692                px(1337.)
10693            );
10694
10695            // Now we move panel_2 to the left
10696            panel_2.set_position(DockPosition::Left, window, cx);
10697        });
10698
10699        workspace.update(cx, |workspace, cx| {
10700            // Since panel_2 was not visible on the right, we don't open the left dock.
10701            assert!(!workspace.left_dock().read(cx).is_open());
10702            // And the right dock is unaffected in its displaying of panel_1
10703            assert!(workspace.right_dock().read(cx).is_open());
10704            assert_eq!(
10705                workspace
10706                    .right_dock()
10707                    .read(cx)
10708                    .visible_panel()
10709                    .unwrap()
10710                    .panel_id(),
10711                panel_1.panel_id(),
10712            );
10713        });
10714
10715        // Move panel_1 back to the left
10716        panel_1.update_in(cx, |panel_1, window, cx| {
10717            panel_1.set_position(DockPosition::Left, window, cx)
10718        });
10719
10720        workspace.update_in(cx, |workspace, window, cx| {
10721            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10722            let left_dock = workspace.left_dock();
10723            assert!(left_dock.read(cx).is_open());
10724            assert_eq!(
10725                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10726                panel_1.panel_id()
10727            );
10728            assert_eq!(
10729                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10730                px(1337.)
10731            );
10732            // And the right dock should be closed as it no longer has any panels.
10733            assert!(!workspace.right_dock().read(cx).is_open());
10734
10735            // Now we move panel_1 to the bottom
10736            panel_1.set_position(DockPosition::Bottom, window, cx);
10737        });
10738
10739        workspace.update_in(cx, |workspace, window, cx| {
10740            // Since panel_1 was visible on the left, we close the left dock.
10741            assert!(!workspace.left_dock().read(cx).is_open());
10742            // The bottom dock is sized based on the panel's default size,
10743            // since the panel orientation changed from vertical to horizontal.
10744            let bottom_dock = workspace.bottom_dock();
10745            assert_eq!(
10746                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10747                panel_1.size(window, cx),
10748            );
10749            // Close bottom dock and move panel_1 back to the left.
10750            bottom_dock.update(cx, |bottom_dock, cx| {
10751                bottom_dock.set_open(false, window, cx)
10752            });
10753            panel_1.set_position(DockPosition::Left, window, cx);
10754        });
10755
10756        // Emit activated event on panel 1
10757        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10758
10759        // Now the left dock is open and panel_1 is active and focused.
10760        workspace.update_in(cx, |workspace, window, cx| {
10761            let left_dock = workspace.left_dock();
10762            assert!(left_dock.read(cx).is_open());
10763            assert_eq!(
10764                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10765                panel_1.panel_id(),
10766            );
10767            assert!(panel_1.focus_handle(cx).is_focused(window));
10768        });
10769
10770        // Emit closed event on panel 2, which is not active
10771        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10772
10773        // Wo don't close the left dock, because panel_2 wasn't the active panel
10774        workspace.update(cx, |workspace, cx| {
10775            let left_dock = workspace.left_dock();
10776            assert!(left_dock.read(cx).is_open());
10777            assert_eq!(
10778                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10779                panel_1.panel_id(),
10780            );
10781        });
10782
10783        // Emitting a ZoomIn event shows the panel as zoomed.
10784        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10785        workspace.read_with(cx, |workspace, _| {
10786            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10787            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10788        });
10789
10790        // Move panel to another dock while it is zoomed
10791        panel_1.update_in(cx, |panel, window, cx| {
10792            panel.set_position(DockPosition::Right, window, cx)
10793        });
10794        workspace.read_with(cx, |workspace, _| {
10795            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10796
10797            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10798        });
10799
10800        // This is a helper for getting a:
10801        // - valid focus on an element,
10802        // - that isn't a part of the panes and panels system of the Workspace,
10803        // - and doesn't trigger the 'on_focus_lost' API.
10804        let focus_other_view = {
10805            let workspace = workspace.clone();
10806            move |cx: &mut VisualTestContext| {
10807                workspace.update_in(cx, |workspace, window, cx| {
10808                    if workspace.active_modal::<TestModal>(cx).is_some() {
10809                        workspace.toggle_modal(window, cx, TestModal::new);
10810                        workspace.toggle_modal(window, cx, TestModal::new);
10811                    } else {
10812                        workspace.toggle_modal(window, cx, TestModal::new);
10813                    }
10814                })
10815            }
10816        };
10817
10818        // If focus is transferred to another view that's not a panel or another pane, we still show
10819        // the panel as zoomed.
10820        focus_other_view(cx);
10821        workspace.read_with(cx, |workspace, _| {
10822            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10823            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10824        });
10825
10826        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10827        workspace.update_in(cx, |_workspace, window, cx| {
10828            cx.focus_self(window);
10829        });
10830        workspace.read_with(cx, |workspace, _| {
10831            assert_eq!(workspace.zoomed, None);
10832            assert_eq!(workspace.zoomed_position, None);
10833        });
10834
10835        // If focus is transferred again to another view that's not a panel or a pane, we won't
10836        // show the panel as zoomed because it wasn't zoomed before.
10837        focus_other_view(cx);
10838        workspace.read_with(cx, |workspace, _| {
10839            assert_eq!(workspace.zoomed, None);
10840            assert_eq!(workspace.zoomed_position, None);
10841        });
10842
10843        // When the panel is activated, it is zoomed again.
10844        cx.dispatch_action(ToggleRightDock);
10845        workspace.read_with(cx, |workspace, _| {
10846            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10847            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10848        });
10849
10850        // Emitting a ZoomOut event unzooms the panel.
10851        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10852        workspace.read_with(cx, |workspace, _| {
10853            assert_eq!(workspace.zoomed, None);
10854            assert_eq!(workspace.zoomed_position, None);
10855        });
10856
10857        // Emit closed event on panel 1, which is active
10858        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10859
10860        // Now the left dock is closed, because panel_1 was the active panel
10861        workspace.update(cx, |workspace, cx| {
10862            let right_dock = workspace.right_dock();
10863            assert!(!right_dock.read(cx).is_open());
10864        });
10865    }
10866
10867    #[gpui::test]
10868    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10869        init_test(cx);
10870
10871        let fs = FakeFs::new(cx.background_executor.clone());
10872        let project = Project::test(fs, [], cx).await;
10873        let (workspace, cx) =
10874            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10875        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10876
10877        let dirty_regular_buffer = cx.new(|cx| {
10878            TestItem::new(cx)
10879                .with_dirty(true)
10880                .with_label("1.txt")
10881                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10882        });
10883        let dirty_regular_buffer_2 = cx.new(|cx| {
10884            TestItem::new(cx)
10885                .with_dirty(true)
10886                .with_label("2.txt")
10887                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10888        });
10889        let dirty_multi_buffer_with_both = cx.new(|cx| {
10890            TestItem::new(cx)
10891                .with_dirty(true)
10892                .with_buffer_kind(ItemBufferKind::Multibuffer)
10893                .with_label("Fake Project Search")
10894                .with_project_items(&[
10895                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10896                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10897                ])
10898        });
10899        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10900        workspace.update_in(cx, |workspace, window, cx| {
10901            workspace.add_item(
10902                pane.clone(),
10903                Box::new(dirty_regular_buffer.clone()),
10904                None,
10905                false,
10906                false,
10907                window,
10908                cx,
10909            );
10910            workspace.add_item(
10911                pane.clone(),
10912                Box::new(dirty_regular_buffer_2.clone()),
10913                None,
10914                false,
10915                false,
10916                window,
10917                cx,
10918            );
10919            workspace.add_item(
10920                pane.clone(),
10921                Box::new(dirty_multi_buffer_with_both.clone()),
10922                None,
10923                false,
10924                false,
10925                window,
10926                cx,
10927            );
10928        });
10929
10930        pane.update_in(cx, |pane, window, cx| {
10931            pane.activate_item(2, true, true, window, cx);
10932            assert_eq!(
10933                pane.active_item().unwrap().item_id(),
10934                multi_buffer_with_both_files_id,
10935                "Should select the multi buffer in the pane"
10936            );
10937        });
10938        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10939            pane.close_other_items(
10940                &CloseOtherItems {
10941                    save_intent: Some(SaveIntent::Save),
10942                    close_pinned: true,
10943                },
10944                None,
10945                window,
10946                cx,
10947            )
10948        });
10949        cx.background_executor.run_until_parked();
10950        assert!(!cx.has_pending_prompt());
10951        close_all_but_multi_buffer_task
10952            .await
10953            .expect("Closing all buffers but the multi buffer failed");
10954        pane.update(cx, |pane, cx| {
10955            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10956            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10957            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10958            assert_eq!(pane.items_len(), 1);
10959            assert_eq!(
10960                pane.active_item().unwrap().item_id(),
10961                multi_buffer_with_both_files_id,
10962                "Should have only the multi buffer left in the pane"
10963            );
10964            assert!(
10965                dirty_multi_buffer_with_both.read(cx).is_dirty,
10966                "The multi buffer containing the unsaved buffer should still be dirty"
10967            );
10968        });
10969
10970        dirty_regular_buffer.update(cx, |buffer, cx| {
10971            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10972        });
10973
10974        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10975            pane.close_active_item(
10976                &CloseActiveItem {
10977                    save_intent: Some(SaveIntent::Close),
10978                    close_pinned: false,
10979                },
10980                window,
10981                cx,
10982            )
10983        });
10984        cx.background_executor.run_until_parked();
10985        assert!(
10986            cx.has_pending_prompt(),
10987            "Dirty multi buffer should prompt a save dialog"
10988        );
10989        cx.simulate_prompt_answer("Save");
10990        cx.background_executor.run_until_parked();
10991        close_multi_buffer_task
10992            .await
10993            .expect("Closing the multi buffer failed");
10994        pane.update(cx, |pane, cx| {
10995            assert_eq!(
10996                dirty_multi_buffer_with_both.read(cx).save_count,
10997                1,
10998                "Multi buffer item should get be saved"
10999            );
11000            // Test impl does not save inner items, so we do not assert them
11001            assert_eq!(
11002                pane.items_len(),
11003                0,
11004                "No more items should be left in the pane"
11005            );
11006            assert!(pane.active_item().is_none());
11007        });
11008    }
11009
11010    #[gpui::test]
11011    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
11012        cx: &mut TestAppContext,
11013    ) {
11014        init_test(cx);
11015
11016        let fs = FakeFs::new(cx.background_executor.clone());
11017        let project = Project::test(fs, [], cx).await;
11018        let (workspace, cx) =
11019            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11020        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11021
11022        let dirty_regular_buffer = cx.new(|cx| {
11023            TestItem::new(cx)
11024                .with_dirty(true)
11025                .with_label("1.txt")
11026                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11027        });
11028        let dirty_regular_buffer_2 = cx.new(|cx| {
11029            TestItem::new(cx)
11030                .with_dirty(true)
11031                .with_label("2.txt")
11032                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11033        });
11034        let clear_regular_buffer = cx.new(|cx| {
11035            TestItem::new(cx)
11036                .with_label("3.txt")
11037                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11038        });
11039
11040        let dirty_multi_buffer_with_both = cx.new(|cx| {
11041            TestItem::new(cx)
11042                .with_dirty(true)
11043                .with_buffer_kind(ItemBufferKind::Multibuffer)
11044                .with_label("Fake Project Search")
11045                .with_project_items(&[
11046                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11047                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11048                    clear_regular_buffer.read(cx).project_items[0].clone(),
11049                ])
11050        });
11051        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11052        workspace.update_in(cx, |workspace, window, cx| {
11053            workspace.add_item(
11054                pane.clone(),
11055                Box::new(dirty_regular_buffer.clone()),
11056                None,
11057                false,
11058                false,
11059                window,
11060                cx,
11061            );
11062            workspace.add_item(
11063                pane.clone(),
11064                Box::new(dirty_multi_buffer_with_both.clone()),
11065                None,
11066                false,
11067                false,
11068                window,
11069                cx,
11070            );
11071        });
11072
11073        pane.update_in(cx, |pane, window, cx| {
11074            pane.activate_item(1, true, true, window, cx);
11075            assert_eq!(
11076                pane.active_item().unwrap().item_id(),
11077                multi_buffer_with_both_files_id,
11078                "Should select the multi buffer in the pane"
11079            );
11080        });
11081        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11082            pane.close_active_item(
11083                &CloseActiveItem {
11084                    save_intent: None,
11085                    close_pinned: false,
11086                },
11087                window,
11088                cx,
11089            )
11090        });
11091        cx.background_executor.run_until_parked();
11092        assert!(
11093            cx.has_pending_prompt(),
11094            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
11095        );
11096    }
11097
11098    /// Tests that when `close_on_file_delete` is enabled, files are automatically
11099    /// closed when they are deleted from disk.
11100    #[gpui::test]
11101    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
11102        init_test(cx);
11103
11104        // Enable the close_on_disk_deletion setting
11105        cx.update_global(|store: &mut SettingsStore, cx| {
11106            store.update_user_settings(cx, |settings| {
11107                settings.workspace.close_on_file_delete = Some(true);
11108            });
11109        });
11110
11111        let fs = FakeFs::new(cx.background_executor.clone());
11112        let project = Project::test(fs, [], cx).await;
11113        let (workspace, cx) =
11114            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11115        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11116
11117        // Create a test item that simulates a file
11118        let item = cx.new(|cx| {
11119            TestItem::new(cx)
11120                .with_label("test.txt")
11121                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11122        });
11123
11124        // Add item to workspace
11125        workspace.update_in(cx, |workspace, window, cx| {
11126            workspace.add_item(
11127                pane.clone(),
11128                Box::new(item.clone()),
11129                None,
11130                false,
11131                false,
11132                window,
11133                cx,
11134            );
11135        });
11136
11137        // Verify the item is in the pane
11138        pane.read_with(cx, |pane, _| {
11139            assert_eq!(pane.items().count(), 1);
11140        });
11141
11142        // Simulate file deletion by setting the item's deleted state
11143        item.update(cx, |item, _| {
11144            item.set_has_deleted_file(true);
11145        });
11146
11147        // Emit UpdateTab event to trigger the close behavior
11148        cx.run_until_parked();
11149        item.update(cx, |_, cx| {
11150            cx.emit(ItemEvent::UpdateTab);
11151        });
11152
11153        // Allow the close operation to complete
11154        cx.run_until_parked();
11155
11156        // Verify the item was automatically closed
11157        pane.read_with(cx, |pane, _| {
11158            assert_eq!(
11159                pane.items().count(),
11160                0,
11161                "Item should be automatically closed when file is deleted"
11162            );
11163        });
11164    }
11165
11166    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11167    /// open with a strikethrough when they are deleted from disk.
11168    #[gpui::test]
11169    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11170        init_test(cx);
11171
11172        // Ensure close_on_disk_deletion is disabled (default)
11173        cx.update_global(|store: &mut SettingsStore, cx| {
11174            store.update_user_settings(cx, |settings| {
11175                settings.workspace.close_on_file_delete = Some(false);
11176            });
11177        });
11178
11179        let fs = FakeFs::new(cx.background_executor.clone());
11180        let project = Project::test(fs, [], cx).await;
11181        let (workspace, cx) =
11182            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11183        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11184
11185        // Create a test item that simulates a file
11186        let item = cx.new(|cx| {
11187            TestItem::new(cx)
11188                .with_label("test.txt")
11189                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11190        });
11191
11192        // Add item to workspace
11193        workspace.update_in(cx, |workspace, window, cx| {
11194            workspace.add_item(
11195                pane.clone(),
11196                Box::new(item.clone()),
11197                None,
11198                false,
11199                false,
11200                window,
11201                cx,
11202            );
11203        });
11204
11205        // Verify the item is in the pane
11206        pane.read_with(cx, |pane, _| {
11207            assert_eq!(pane.items().count(), 1);
11208        });
11209
11210        // Simulate file deletion
11211        item.update(cx, |item, _| {
11212            item.set_has_deleted_file(true);
11213        });
11214
11215        // Emit UpdateTab event
11216        cx.run_until_parked();
11217        item.update(cx, |_, cx| {
11218            cx.emit(ItemEvent::UpdateTab);
11219        });
11220
11221        // Allow any potential close operation to complete
11222        cx.run_until_parked();
11223
11224        // Verify the item remains open (with strikethrough)
11225        pane.read_with(cx, |pane, _| {
11226            assert_eq!(
11227                pane.items().count(),
11228                1,
11229                "Item should remain open when close_on_disk_deletion is disabled"
11230            );
11231        });
11232
11233        // Verify the item shows as deleted
11234        item.read_with(cx, |item, _| {
11235            assert!(
11236                item.has_deleted_file,
11237                "Item should be marked as having deleted file"
11238            );
11239        });
11240    }
11241
11242    /// Tests that dirty files are not automatically closed when deleted from disk,
11243    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11244    /// unsaved changes without being prompted.
11245    #[gpui::test]
11246    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11247        init_test(cx);
11248
11249        // Enable the close_on_file_delete setting
11250        cx.update_global(|store: &mut SettingsStore, cx| {
11251            store.update_user_settings(cx, |settings| {
11252                settings.workspace.close_on_file_delete = Some(true);
11253            });
11254        });
11255
11256        let fs = FakeFs::new(cx.background_executor.clone());
11257        let project = Project::test(fs, [], cx).await;
11258        let (workspace, cx) =
11259            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11260        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11261
11262        // Create a dirty test item
11263        let item = cx.new(|cx| {
11264            TestItem::new(cx)
11265                .with_dirty(true)
11266                .with_label("test.txt")
11267                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11268        });
11269
11270        // Add item to workspace
11271        workspace.update_in(cx, |workspace, window, cx| {
11272            workspace.add_item(
11273                pane.clone(),
11274                Box::new(item.clone()),
11275                None,
11276                false,
11277                false,
11278                window,
11279                cx,
11280            );
11281        });
11282
11283        // Simulate file deletion
11284        item.update(cx, |item, _| {
11285            item.set_has_deleted_file(true);
11286        });
11287
11288        // Emit UpdateTab event to trigger the close behavior
11289        cx.run_until_parked();
11290        item.update(cx, |_, cx| {
11291            cx.emit(ItemEvent::UpdateTab);
11292        });
11293
11294        // Allow any potential close operation to complete
11295        cx.run_until_parked();
11296
11297        // Verify the item remains open (dirty files are not auto-closed)
11298        pane.read_with(cx, |pane, _| {
11299            assert_eq!(
11300                pane.items().count(),
11301                1,
11302                "Dirty items should not be automatically closed even when file is deleted"
11303            );
11304        });
11305
11306        // Verify the item is marked as deleted and still dirty
11307        item.read_with(cx, |item, _| {
11308            assert!(
11309                item.has_deleted_file,
11310                "Item should be marked as having deleted file"
11311            );
11312            assert!(item.is_dirty, "Item should still be dirty");
11313        });
11314    }
11315
11316    /// Tests that navigation history is cleaned up when files are auto-closed
11317    /// due to deletion from disk.
11318    #[gpui::test]
11319    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11320        init_test(cx);
11321
11322        // Enable the close_on_file_delete setting
11323        cx.update_global(|store: &mut SettingsStore, cx| {
11324            store.update_user_settings(cx, |settings| {
11325                settings.workspace.close_on_file_delete = Some(true);
11326            });
11327        });
11328
11329        let fs = FakeFs::new(cx.background_executor.clone());
11330        let project = Project::test(fs, [], cx).await;
11331        let (workspace, cx) =
11332            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11333        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11334
11335        // Create test items
11336        let item1 = cx.new(|cx| {
11337            TestItem::new(cx)
11338                .with_label("test1.txt")
11339                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11340        });
11341        let item1_id = item1.item_id();
11342
11343        let item2 = cx.new(|cx| {
11344            TestItem::new(cx)
11345                .with_label("test2.txt")
11346                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11347        });
11348
11349        // Add items to workspace
11350        workspace.update_in(cx, |workspace, window, cx| {
11351            workspace.add_item(
11352                pane.clone(),
11353                Box::new(item1.clone()),
11354                None,
11355                false,
11356                false,
11357                window,
11358                cx,
11359            );
11360            workspace.add_item(
11361                pane.clone(),
11362                Box::new(item2.clone()),
11363                None,
11364                false,
11365                false,
11366                window,
11367                cx,
11368            );
11369        });
11370
11371        // Activate item1 to ensure it gets navigation entries
11372        pane.update_in(cx, |pane, window, cx| {
11373            pane.activate_item(0, true, true, window, cx);
11374        });
11375
11376        // Switch to item2 and back to create navigation history
11377        pane.update_in(cx, |pane, window, cx| {
11378            pane.activate_item(1, true, true, window, cx);
11379        });
11380        cx.run_until_parked();
11381
11382        pane.update_in(cx, |pane, window, cx| {
11383            pane.activate_item(0, true, true, window, cx);
11384        });
11385        cx.run_until_parked();
11386
11387        // Simulate file deletion for item1
11388        item1.update(cx, |item, _| {
11389            item.set_has_deleted_file(true);
11390        });
11391
11392        // Emit UpdateTab event to trigger the close behavior
11393        item1.update(cx, |_, cx| {
11394            cx.emit(ItemEvent::UpdateTab);
11395        });
11396        cx.run_until_parked();
11397
11398        // Verify item1 was closed
11399        pane.read_with(cx, |pane, _| {
11400            assert_eq!(
11401                pane.items().count(),
11402                1,
11403                "Should have 1 item remaining after auto-close"
11404            );
11405        });
11406
11407        // Check navigation history after close
11408        let has_item = pane.read_with(cx, |pane, cx| {
11409            let mut has_item = false;
11410            pane.nav_history().for_each_entry(cx, |entry, _| {
11411                if entry.item.id() == item1_id {
11412                    has_item = true;
11413                }
11414            });
11415            has_item
11416        });
11417
11418        assert!(
11419            !has_item,
11420            "Navigation history should not contain closed item entries"
11421        );
11422    }
11423
11424    #[gpui::test]
11425    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11426        cx: &mut TestAppContext,
11427    ) {
11428        init_test(cx);
11429
11430        let fs = FakeFs::new(cx.background_executor.clone());
11431        let project = Project::test(fs, [], cx).await;
11432        let (workspace, cx) =
11433            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11434        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11435
11436        let dirty_regular_buffer = cx.new(|cx| {
11437            TestItem::new(cx)
11438                .with_dirty(true)
11439                .with_label("1.txt")
11440                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11441        });
11442        let dirty_regular_buffer_2 = cx.new(|cx| {
11443            TestItem::new(cx)
11444                .with_dirty(true)
11445                .with_label("2.txt")
11446                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11447        });
11448        let clear_regular_buffer = cx.new(|cx| {
11449            TestItem::new(cx)
11450                .with_label("3.txt")
11451                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11452        });
11453
11454        let dirty_multi_buffer = cx.new(|cx| {
11455            TestItem::new(cx)
11456                .with_dirty(true)
11457                .with_buffer_kind(ItemBufferKind::Multibuffer)
11458                .with_label("Fake Project Search")
11459                .with_project_items(&[
11460                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11461                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11462                    clear_regular_buffer.read(cx).project_items[0].clone(),
11463                ])
11464        });
11465        workspace.update_in(cx, |workspace, window, cx| {
11466            workspace.add_item(
11467                pane.clone(),
11468                Box::new(dirty_regular_buffer.clone()),
11469                None,
11470                false,
11471                false,
11472                window,
11473                cx,
11474            );
11475            workspace.add_item(
11476                pane.clone(),
11477                Box::new(dirty_regular_buffer_2.clone()),
11478                None,
11479                false,
11480                false,
11481                window,
11482                cx,
11483            );
11484            workspace.add_item(
11485                pane.clone(),
11486                Box::new(dirty_multi_buffer.clone()),
11487                None,
11488                false,
11489                false,
11490                window,
11491                cx,
11492            );
11493        });
11494
11495        pane.update_in(cx, |pane, window, cx| {
11496            pane.activate_item(2, true, true, window, cx);
11497            assert_eq!(
11498                pane.active_item().unwrap().item_id(),
11499                dirty_multi_buffer.item_id(),
11500                "Should select the multi buffer in the pane"
11501            );
11502        });
11503        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11504            pane.close_active_item(
11505                &CloseActiveItem {
11506                    save_intent: None,
11507                    close_pinned: false,
11508                },
11509                window,
11510                cx,
11511            )
11512        });
11513        cx.background_executor.run_until_parked();
11514        assert!(
11515            !cx.has_pending_prompt(),
11516            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11517        );
11518        close_multi_buffer_task
11519            .await
11520            .expect("Closing multi buffer failed");
11521        pane.update(cx, |pane, cx| {
11522            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11523            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11524            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11525            assert_eq!(
11526                pane.items()
11527                    .map(|item| item.item_id())
11528                    .sorted()
11529                    .collect::<Vec<_>>(),
11530                vec![
11531                    dirty_regular_buffer.item_id(),
11532                    dirty_regular_buffer_2.item_id(),
11533                ],
11534                "Should have no multi buffer left in the pane"
11535            );
11536            assert!(dirty_regular_buffer.read(cx).is_dirty);
11537            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11538        });
11539    }
11540
11541    #[gpui::test]
11542    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11543        init_test(cx);
11544        let fs = FakeFs::new(cx.executor());
11545        let project = Project::test(fs, [], cx).await;
11546        let (workspace, cx) =
11547            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11548
11549        // Add a new panel to the right dock, opening the dock and setting the
11550        // focus to the new panel.
11551        let panel = workspace.update_in(cx, |workspace, window, cx| {
11552            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11553            workspace.add_panel(panel.clone(), window, cx);
11554
11555            workspace
11556                .right_dock()
11557                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11558
11559            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11560
11561            panel
11562        });
11563
11564        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11565        // panel to the next valid position which, in this case, is the left
11566        // dock.
11567        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11568        workspace.update(cx, |workspace, cx| {
11569            assert!(workspace.left_dock().read(cx).is_open());
11570            assert_eq!(panel.read(cx).position, DockPosition::Left);
11571        });
11572
11573        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11574        // panel to the next valid position which, in this case, is the bottom
11575        // dock.
11576        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11577        workspace.update(cx, |workspace, cx| {
11578            assert!(workspace.bottom_dock().read(cx).is_open());
11579            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11580        });
11581
11582        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11583        // around moving the panel to its initial position, the right dock.
11584        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11585        workspace.update(cx, |workspace, cx| {
11586            assert!(workspace.right_dock().read(cx).is_open());
11587            assert_eq!(panel.read(cx).position, DockPosition::Right);
11588        });
11589
11590        // Remove focus from the panel, ensuring that, if the panel is not
11591        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11592        // the panel's position, so the panel is still in the right dock.
11593        workspace.update_in(cx, |workspace, window, cx| {
11594            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11595        });
11596
11597        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11598        workspace.update(cx, |workspace, cx| {
11599            assert!(workspace.right_dock().read(cx).is_open());
11600            assert_eq!(panel.read(cx).position, DockPosition::Right);
11601        });
11602    }
11603
11604    #[gpui::test]
11605    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11606        init_test(cx);
11607
11608        let fs = FakeFs::new(cx.executor());
11609        let project = Project::test(fs, [], cx).await;
11610        let (workspace, cx) =
11611            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11612
11613        let item_1 = cx.new(|cx| {
11614            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11615        });
11616        workspace.update_in(cx, |workspace, window, cx| {
11617            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11618            workspace.move_item_to_pane_in_direction(
11619                &MoveItemToPaneInDirection {
11620                    direction: SplitDirection::Right,
11621                    focus: true,
11622                    clone: false,
11623                },
11624                window,
11625                cx,
11626            );
11627            workspace.move_item_to_pane_at_index(
11628                &MoveItemToPane {
11629                    destination: 3,
11630                    focus: true,
11631                    clone: false,
11632                },
11633                window,
11634                cx,
11635            );
11636
11637            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11638            assert_eq!(
11639                pane_items_paths(&workspace.active_pane, cx),
11640                vec!["first.txt".to_string()],
11641                "Single item was not moved anywhere"
11642            );
11643        });
11644
11645        let item_2 = cx.new(|cx| {
11646            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11647        });
11648        workspace.update_in(cx, |workspace, window, cx| {
11649            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11650            assert_eq!(
11651                pane_items_paths(&workspace.panes[0], cx),
11652                vec!["first.txt".to_string(), "second.txt".to_string()],
11653            );
11654            workspace.move_item_to_pane_in_direction(
11655                &MoveItemToPaneInDirection {
11656                    direction: SplitDirection::Right,
11657                    focus: true,
11658                    clone: false,
11659                },
11660                window,
11661                cx,
11662            );
11663
11664            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11665            assert_eq!(
11666                pane_items_paths(&workspace.panes[0], cx),
11667                vec!["first.txt".to_string()],
11668                "After moving, one item should be left in the original pane"
11669            );
11670            assert_eq!(
11671                pane_items_paths(&workspace.panes[1], cx),
11672                vec!["second.txt".to_string()],
11673                "New item should have been moved to the new pane"
11674            );
11675        });
11676
11677        let item_3 = cx.new(|cx| {
11678            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11679        });
11680        workspace.update_in(cx, |workspace, window, cx| {
11681            let original_pane = workspace.panes[0].clone();
11682            workspace.set_active_pane(&original_pane, window, cx);
11683            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11684            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11685            assert_eq!(
11686                pane_items_paths(&workspace.active_pane, cx),
11687                vec!["first.txt".to_string(), "third.txt".to_string()],
11688                "New pane should be ready to move one item out"
11689            );
11690
11691            workspace.move_item_to_pane_at_index(
11692                &MoveItemToPane {
11693                    destination: 3,
11694                    focus: true,
11695                    clone: false,
11696                },
11697                window,
11698                cx,
11699            );
11700            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11701            assert_eq!(
11702                pane_items_paths(&workspace.active_pane, cx),
11703                vec!["first.txt".to_string()],
11704                "After moving, one item should be left in the original pane"
11705            );
11706            assert_eq!(
11707                pane_items_paths(&workspace.panes[1], cx),
11708                vec!["second.txt".to_string()],
11709                "Previously created pane should be unchanged"
11710            );
11711            assert_eq!(
11712                pane_items_paths(&workspace.panes[2], cx),
11713                vec!["third.txt".to_string()],
11714                "New item should have been moved to the new pane"
11715            );
11716        });
11717    }
11718
11719    #[gpui::test]
11720    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11721        init_test(cx);
11722
11723        let fs = FakeFs::new(cx.executor());
11724        let project = Project::test(fs, [], cx).await;
11725        let (workspace, cx) =
11726            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11727
11728        let item_1 = cx.new(|cx| {
11729            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11730        });
11731        workspace.update_in(cx, |workspace, window, cx| {
11732            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11733            workspace.move_item_to_pane_in_direction(
11734                &MoveItemToPaneInDirection {
11735                    direction: SplitDirection::Right,
11736                    focus: true,
11737                    clone: true,
11738                },
11739                window,
11740                cx,
11741            );
11742        });
11743        cx.run_until_parked();
11744        workspace.update_in(cx, |workspace, window, cx| {
11745            workspace.move_item_to_pane_at_index(
11746                &MoveItemToPane {
11747                    destination: 3,
11748                    focus: true,
11749                    clone: true,
11750                },
11751                window,
11752                cx,
11753            );
11754        });
11755        cx.run_until_parked();
11756
11757        workspace.update(cx, |workspace, cx| {
11758            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11759            for pane in workspace.panes() {
11760                assert_eq!(
11761                    pane_items_paths(pane, cx),
11762                    vec!["first.txt".to_string()],
11763                    "Single item exists in all panes"
11764                );
11765            }
11766        });
11767
11768        // verify that the active pane has been updated after waiting for the
11769        // pane focus event to fire and resolve
11770        workspace.read_with(cx, |workspace, _app| {
11771            assert_eq!(
11772                workspace.active_pane(),
11773                &workspace.panes[2],
11774                "The third pane should be the active one: {:?}",
11775                workspace.panes
11776            );
11777        })
11778    }
11779
11780    mod register_project_item_tests {
11781
11782        use super::*;
11783
11784        // View
11785        struct TestPngItemView {
11786            focus_handle: FocusHandle,
11787        }
11788        // Model
11789        struct TestPngItem {}
11790
11791        impl project::ProjectItem for TestPngItem {
11792            fn try_open(
11793                _project: &Entity<Project>,
11794                path: &ProjectPath,
11795                cx: &mut App,
11796            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11797                if path.path.extension().unwrap() == "png" {
11798                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
11799                } else {
11800                    None
11801                }
11802            }
11803
11804            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11805                None
11806            }
11807
11808            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11809                None
11810            }
11811
11812            fn is_dirty(&self) -> bool {
11813                false
11814            }
11815        }
11816
11817        impl Item for TestPngItemView {
11818            type Event = ();
11819            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11820                "".into()
11821            }
11822        }
11823        impl EventEmitter<()> for TestPngItemView {}
11824        impl Focusable for TestPngItemView {
11825            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11826                self.focus_handle.clone()
11827            }
11828        }
11829
11830        impl Render for TestPngItemView {
11831            fn render(
11832                &mut self,
11833                _window: &mut Window,
11834                _cx: &mut Context<Self>,
11835            ) -> impl IntoElement {
11836                Empty
11837            }
11838        }
11839
11840        impl ProjectItem for TestPngItemView {
11841            type Item = TestPngItem;
11842
11843            fn for_project_item(
11844                _project: Entity<Project>,
11845                _pane: Option<&Pane>,
11846                _item: Entity<Self::Item>,
11847                _: &mut Window,
11848                cx: &mut Context<Self>,
11849            ) -> Self
11850            where
11851                Self: Sized,
11852            {
11853                Self {
11854                    focus_handle: cx.focus_handle(),
11855                }
11856            }
11857        }
11858
11859        // View
11860        struct TestIpynbItemView {
11861            focus_handle: FocusHandle,
11862        }
11863        // Model
11864        struct TestIpynbItem {}
11865
11866        impl project::ProjectItem for TestIpynbItem {
11867            fn try_open(
11868                _project: &Entity<Project>,
11869                path: &ProjectPath,
11870                cx: &mut App,
11871            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11872                if path.path.extension().unwrap() == "ipynb" {
11873                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
11874                } else {
11875                    None
11876                }
11877            }
11878
11879            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11880                None
11881            }
11882
11883            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11884                None
11885            }
11886
11887            fn is_dirty(&self) -> bool {
11888                false
11889            }
11890        }
11891
11892        impl Item for TestIpynbItemView {
11893            type Event = ();
11894            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11895                "".into()
11896            }
11897        }
11898        impl EventEmitter<()> for TestIpynbItemView {}
11899        impl Focusable for TestIpynbItemView {
11900            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11901                self.focus_handle.clone()
11902            }
11903        }
11904
11905        impl Render for TestIpynbItemView {
11906            fn render(
11907                &mut self,
11908                _window: &mut Window,
11909                _cx: &mut Context<Self>,
11910            ) -> impl IntoElement {
11911                Empty
11912            }
11913        }
11914
11915        impl ProjectItem for TestIpynbItemView {
11916            type Item = TestIpynbItem;
11917
11918            fn for_project_item(
11919                _project: Entity<Project>,
11920                _pane: Option<&Pane>,
11921                _item: Entity<Self::Item>,
11922                _: &mut Window,
11923                cx: &mut Context<Self>,
11924            ) -> Self
11925            where
11926                Self: Sized,
11927            {
11928                Self {
11929                    focus_handle: cx.focus_handle(),
11930                }
11931            }
11932        }
11933
11934        struct TestAlternatePngItemView {
11935            focus_handle: FocusHandle,
11936        }
11937
11938        impl Item for TestAlternatePngItemView {
11939            type Event = ();
11940            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11941                "".into()
11942            }
11943        }
11944
11945        impl EventEmitter<()> for TestAlternatePngItemView {}
11946        impl Focusable for TestAlternatePngItemView {
11947            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11948                self.focus_handle.clone()
11949            }
11950        }
11951
11952        impl Render for TestAlternatePngItemView {
11953            fn render(
11954                &mut self,
11955                _window: &mut Window,
11956                _cx: &mut Context<Self>,
11957            ) -> impl IntoElement {
11958                Empty
11959            }
11960        }
11961
11962        impl ProjectItem for TestAlternatePngItemView {
11963            type Item = TestPngItem;
11964
11965            fn for_project_item(
11966                _project: Entity<Project>,
11967                _pane: Option<&Pane>,
11968                _item: Entity<Self::Item>,
11969                _: &mut Window,
11970                cx: &mut Context<Self>,
11971            ) -> Self
11972            where
11973                Self: Sized,
11974            {
11975                Self {
11976                    focus_handle: cx.focus_handle(),
11977                }
11978            }
11979        }
11980
11981        #[gpui::test]
11982        async fn test_register_project_item(cx: &mut TestAppContext) {
11983            init_test(cx);
11984
11985            cx.update(|cx| {
11986                register_project_item::<TestPngItemView>(cx);
11987                register_project_item::<TestIpynbItemView>(cx);
11988            });
11989
11990            let fs = FakeFs::new(cx.executor());
11991            fs.insert_tree(
11992                "/root1",
11993                json!({
11994                    "one.png": "BINARYDATAHERE",
11995                    "two.ipynb": "{ totally a notebook }",
11996                    "three.txt": "editing text, sure why not?"
11997                }),
11998            )
11999            .await;
12000
12001            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12002            let (workspace, cx) =
12003                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12004
12005            let worktree_id = project.update(cx, |project, cx| {
12006                project.worktrees(cx).next().unwrap().read(cx).id()
12007            });
12008
12009            let handle = workspace
12010                .update_in(cx, |workspace, window, cx| {
12011                    let project_path = (worktree_id, rel_path("one.png"));
12012                    workspace.open_path(project_path, None, true, window, cx)
12013                })
12014                .await
12015                .unwrap();
12016
12017            // Now we can check if the handle we got back errored or not
12018            assert_eq!(
12019                handle.to_any_view().entity_type(),
12020                TypeId::of::<TestPngItemView>()
12021            );
12022
12023            let handle = workspace
12024                .update_in(cx, |workspace, window, cx| {
12025                    let project_path = (worktree_id, rel_path("two.ipynb"));
12026                    workspace.open_path(project_path, None, true, window, cx)
12027                })
12028                .await
12029                .unwrap();
12030
12031            assert_eq!(
12032                handle.to_any_view().entity_type(),
12033                TypeId::of::<TestIpynbItemView>()
12034            );
12035
12036            let handle = workspace
12037                .update_in(cx, |workspace, window, cx| {
12038                    let project_path = (worktree_id, rel_path("three.txt"));
12039                    workspace.open_path(project_path, None, true, window, cx)
12040                })
12041                .await;
12042            assert!(handle.is_err());
12043        }
12044
12045        #[gpui::test]
12046        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
12047            init_test(cx);
12048
12049            cx.update(|cx| {
12050                register_project_item::<TestPngItemView>(cx);
12051                register_project_item::<TestAlternatePngItemView>(cx);
12052            });
12053
12054            let fs = FakeFs::new(cx.executor());
12055            fs.insert_tree(
12056                "/root1",
12057                json!({
12058                    "one.png": "BINARYDATAHERE",
12059                    "two.ipynb": "{ totally a notebook }",
12060                    "three.txt": "editing text, sure why not?"
12061                }),
12062            )
12063            .await;
12064            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12065            let (workspace, cx) =
12066                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12067            let worktree_id = project.update(cx, |project, cx| {
12068                project.worktrees(cx).next().unwrap().read(cx).id()
12069            });
12070
12071            let handle = workspace
12072                .update_in(cx, |workspace, window, cx| {
12073                    let project_path = (worktree_id, rel_path("one.png"));
12074                    workspace.open_path(project_path, None, true, window, cx)
12075                })
12076                .await
12077                .unwrap();
12078
12079            // This _must_ be the second item registered
12080            assert_eq!(
12081                handle.to_any_view().entity_type(),
12082                TypeId::of::<TestAlternatePngItemView>()
12083            );
12084
12085            let handle = workspace
12086                .update_in(cx, |workspace, window, cx| {
12087                    let project_path = (worktree_id, rel_path("three.txt"));
12088                    workspace.open_path(project_path, None, true, window, cx)
12089                })
12090                .await;
12091            assert!(handle.is_err());
12092        }
12093    }
12094
12095    #[gpui::test]
12096    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
12097        init_test(cx);
12098
12099        let fs = FakeFs::new(cx.executor());
12100        let project = Project::test(fs, [], cx).await;
12101        let (workspace, _cx) =
12102            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12103
12104        // Test with status bar shown (default)
12105        workspace.read_with(cx, |workspace, cx| {
12106            let visible = workspace.status_bar_visible(cx);
12107            assert!(visible, "Status bar should be visible by default");
12108        });
12109
12110        // Test with status bar hidden
12111        cx.update_global(|store: &mut SettingsStore, cx| {
12112            store.update_user_settings(cx, |settings| {
12113                settings.status_bar.get_or_insert_default().show = Some(false);
12114            });
12115        });
12116
12117        workspace.read_with(cx, |workspace, cx| {
12118            let visible = workspace.status_bar_visible(cx);
12119            assert!(!visible, "Status bar should be hidden when show is false");
12120        });
12121
12122        // Test with status bar shown explicitly
12123        cx.update_global(|store: &mut SettingsStore, cx| {
12124            store.update_user_settings(cx, |settings| {
12125                settings.status_bar.get_or_insert_default().show = Some(true);
12126            });
12127        });
12128
12129        workspace.read_with(cx, |workspace, cx| {
12130            let visible = workspace.status_bar_visible(cx);
12131            assert!(visible, "Status bar should be visible when show is true");
12132        });
12133    }
12134
12135    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
12136        pane.read(cx)
12137            .items()
12138            .flat_map(|item| {
12139                item.project_paths(cx)
12140                    .into_iter()
12141                    .map(|path| path.path.display(PathStyle::local()).into_owned())
12142            })
12143            .collect()
12144    }
12145
12146    pub fn init_test(cx: &mut TestAppContext) {
12147        cx.update(|cx| {
12148            let settings_store = SettingsStore::test(cx);
12149            cx.set_global(settings_store);
12150            theme::init(theme::LoadThemes::JustBase, cx);
12151        });
12152    }
12153
12154    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
12155        let item = TestProjectItem::new(id, path, cx);
12156        item.update(cx, |item, _| {
12157            item.is_dirty = true;
12158        });
12159        item
12160    }
12161}