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        /// Closes the current project.
  231        CloseProject,
  232        /// Opens the feedback dialog.
  233        Feedback,
  234        /// Follows the next collaborator in the session.
  235        FollowNextCollaborator,
  236        /// Moves the focused panel to the next position.
  237        MoveFocusedPanelToNextPosition,
  238        /// Creates a new file.
  239        NewFile,
  240        /// Creates a new file in a vertical split.
  241        NewFileSplitVertical,
  242        /// Creates a new file in a horizontal split.
  243        NewFileSplitHorizontal,
  244        /// Opens a new search.
  245        NewSearch,
  246        /// Opens a new window.
  247        NewWindow,
  248        /// Opens a file or directory.
  249        Open,
  250        /// Opens multiple files.
  251        OpenFiles,
  252        /// Opens the current location in terminal.
  253        OpenInTerminal,
  254        /// Opens the component preview.
  255        OpenComponentPreview,
  256        /// Reloads the active item.
  257        ReloadActiveItem,
  258        /// Resets the active dock to its default size.
  259        ResetActiveDockSize,
  260        /// Resets all open docks to their default sizes.
  261        ResetOpenDocksSize,
  262        /// Reloads the application
  263        Reload,
  264        /// Saves the current file with a new name.
  265        SaveAs,
  266        /// Saves without formatting.
  267        SaveWithoutFormat,
  268        /// Shuts down all debug adapters.
  269        ShutdownDebugAdapters,
  270        /// Suppresses the current notification.
  271        SuppressNotification,
  272        /// Toggles the bottom dock.
  273        ToggleBottomDock,
  274        /// Toggles centered layout mode.
  275        ToggleCenteredLayout,
  276        /// Toggles edit prediction feature globally for all files.
  277        ToggleEditPrediction,
  278        /// Toggles the left dock.
  279        ToggleLeftDock,
  280        /// Toggles the right dock.
  281        ToggleRightDock,
  282        /// Toggles zoom on the active pane.
  283        ToggleZoom,
  284        /// Toggles read-only mode for the active item (if supported by that item).
  285        ToggleReadOnlyFile,
  286        /// Zooms in on the active pane.
  287        ZoomIn,
  288        /// Zooms out of the active pane.
  289        ZoomOut,
  290        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  291        /// If the modal is shown already, closes it without trusting any worktree.
  292        ToggleWorktreeSecurity,
  293        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  294        /// Requires restart to take effect on already opened projects.
  295        ClearTrustedWorktrees,
  296        /// Stops following a collaborator.
  297        Unfollow,
  298        /// Restores the banner.
  299        RestoreBanner,
  300        /// Toggles expansion of the selected item.
  301        ToggleExpandItem,
  302    ]
  303);
  304
  305/// Activates a specific pane by its index.
  306#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  307#[action(namespace = workspace)]
  308pub struct ActivatePane(pub usize);
  309
  310/// Moves an item to a specific pane by index.
  311#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  312#[action(namespace = workspace)]
  313#[serde(deny_unknown_fields)]
  314pub struct MoveItemToPane {
  315    #[serde(default = "default_1")]
  316    pub destination: usize,
  317    #[serde(default = "default_true")]
  318    pub focus: bool,
  319    #[serde(default)]
  320    pub clone: bool,
  321}
  322
  323fn default_1() -> usize {
  324    1
  325}
  326
  327/// Moves an item to a pane in the specified direction.
  328#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  329#[action(namespace = workspace)]
  330#[serde(deny_unknown_fields)]
  331pub struct MoveItemToPaneInDirection {
  332    #[serde(default = "default_right")]
  333    pub direction: SplitDirection,
  334    #[serde(default = "default_true")]
  335    pub focus: bool,
  336    #[serde(default)]
  337    pub clone: bool,
  338}
  339
  340/// Creates a new file in a split of the desired direction.
  341#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  342#[action(namespace = workspace)]
  343#[serde(deny_unknown_fields)]
  344pub struct NewFileSplit(pub SplitDirection);
  345
  346fn default_right() -> SplitDirection {
  347    SplitDirection::Right
  348}
  349
  350/// Saves all open files in the workspace.
  351#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  352#[action(namespace = workspace)]
  353#[serde(deny_unknown_fields)]
  354pub struct SaveAll {
  355    #[serde(default)]
  356    pub save_intent: Option<SaveIntent>,
  357}
  358
  359/// Saves the current file with the specified options.
  360#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  361#[action(namespace = workspace)]
  362#[serde(deny_unknown_fields)]
  363pub struct Save {
  364    #[serde(default)]
  365    pub save_intent: Option<SaveIntent>,
  366}
  367
  368/// Closes all items and panes in the workspace.
  369#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  370#[action(namespace = workspace)]
  371#[serde(deny_unknown_fields)]
  372pub struct CloseAllItemsAndPanes {
  373    #[serde(default)]
  374    pub save_intent: Option<SaveIntent>,
  375}
  376
  377/// Closes all inactive tabs and panes in the workspace.
  378#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  379#[action(namespace = workspace)]
  380#[serde(deny_unknown_fields)]
  381pub struct CloseInactiveTabsAndPanes {
  382    #[serde(default)]
  383    pub save_intent: Option<SaveIntent>,
  384}
  385
  386/// Sends a sequence of keystrokes to the active element.
  387#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  388#[action(namespace = workspace)]
  389pub struct SendKeystrokes(pub String);
  390
  391actions!(
  392    project_symbols,
  393    [
  394        /// Toggles the project symbols search.
  395        #[action(name = "Toggle")]
  396        ToggleProjectSymbols
  397    ]
  398);
  399
  400/// Toggles the file finder interface.
  401#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  402#[action(namespace = file_finder, name = "Toggle")]
  403#[serde(deny_unknown_fields)]
  404pub struct ToggleFileFinder {
  405    #[serde(default)]
  406    pub separate_history: bool,
  407}
  408
  409/// Opens a new terminal in the center.
  410#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  411#[action(namespace = workspace)]
  412#[serde(deny_unknown_fields)]
  413pub struct NewCenterTerminal {
  414    /// If true, creates a local terminal even in remote projects.
  415    #[serde(default)]
  416    pub local: bool,
  417}
  418
  419/// Opens a new terminal.
  420#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  421#[action(namespace = workspace)]
  422#[serde(deny_unknown_fields)]
  423pub struct NewTerminal {
  424    /// If true, creates a local terminal even in remote projects.
  425    #[serde(default)]
  426    pub local: bool,
  427}
  428
  429/// Increases size of a currently focused dock by a given amount of pixels.
  430#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  431#[action(namespace = workspace)]
  432#[serde(deny_unknown_fields)]
  433pub struct IncreaseActiveDockSize {
  434    /// For 0px parameter, uses UI font size value.
  435    #[serde(default)]
  436    pub px: u32,
  437}
  438
  439/// Decreases size of a currently focused dock by a given amount of pixels.
  440#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  441#[action(namespace = workspace)]
  442#[serde(deny_unknown_fields)]
  443pub struct DecreaseActiveDockSize {
  444    /// For 0px parameter, uses UI font size value.
  445    #[serde(default)]
  446    pub px: u32,
  447}
  448
  449/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  450#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  451#[action(namespace = workspace)]
  452#[serde(deny_unknown_fields)]
  453pub struct IncreaseOpenDocksSize {
  454    /// For 0px parameter, uses UI font size value.
  455    #[serde(default)]
  456    pub px: u32,
  457}
  458
  459/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  460#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  461#[action(namespace = workspace)]
  462#[serde(deny_unknown_fields)]
  463pub struct DecreaseOpenDocksSize {
  464    /// For 0px parameter, uses UI font size value.
  465    #[serde(default)]
  466    pub px: u32,
  467}
  468
  469actions!(
  470    workspace,
  471    [
  472        /// Activates the pane to the left.
  473        ActivatePaneLeft,
  474        /// Activates the pane to the right.
  475        ActivatePaneRight,
  476        /// Activates the pane above.
  477        ActivatePaneUp,
  478        /// Activates the pane below.
  479        ActivatePaneDown,
  480        /// Swaps the current pane with the one to the left.
  481        SwapPaneLeft,
  482        /// Swaps the current pane with the one to the right.
  483        SwapPaneRight,
  484        /// Swaps the current pane with the one above.
  485        SwapPaneUp,
  486        /// Swaps the current pane with the one below.
  487        SwapPaneDown,
  488        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  489        SwapPaneAdjacent,
  490        /// Move the current pane to be at the far left.
  491        MovePaneLeft,
  492        /// Move the current pane to be at the far right.
  493        MovePaneRight,
  494        /// Move the current pane to be at the very top.
  495        MovePaneUp,
  496        /// Move the current pane to be at the very bottom.
  497        MovePaneDown,
  498    ]
  499);
  500
  501#[derive(PartialEq, Eq, Debug)]
  502pub enum CloseIntent {
  503    /// Quit the program entirely.
  504    Quit,
  505    /// Close a window.
  506    CloseWindow,
  507    /// Replace the workspace in an existing window.
  508    ReplaceWindow,
  509}
  510
  511#[derive(Clone)]
  512pub struct Toast {
  513    id: NotificationId,
  514    msg: Cow<'static, str>,
  515    autohide: bool,
  516    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  517}
  518
  519impl Toast {
  520    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  521        Toast {
  522            id,
  523            msg: msg.into(),
  524            on_click: None,
  525            autohide: false,
  526        }
  527    }
  528
  529    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  530    where
  531        M: Into<Cow<'static, str>>,
  532        F: Fn(&mut Window, &mut App) + 'static,
  533    {
  534        self.on_click = Some((message.into(), Arc::new(on_click)));
  535        self
  536    }
  537
  538    pub fn autohide(mut self) -> Self {
  539        self.autohide = true;
  540        self
  541    }
  542}
  543
  544impl PartialEq for Toast {
  545    fn eq(&self, other: &Self) -> bool {
  546        self.id == other.id
  547            && self.msg == other.msg
  548            && self.on_click.is_some() == other.on_click.is_some()
  549    }
  550}
  551
  552/// Opens a new terminal with the specified working directory.
  553#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  554#[action(namespace = workspace)]
  555#[serde(deny_unknown_fields)]
  556pub struct OpenTerminal {
  557    pub working_directory: PathBuf,
  558    /// If true, creates a local terminal even in remote projects.
  559    #[serde(default)]
  560    pub local: bool,
  561}
  562
  563#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  564pub struct WorkspaceId(i64);
  565
  566impl StaticColumnCount for WorkspaceId {}
  567impl Bind for WorkspaceId {
  568    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  569        self.0.bind(statement, start_index)
  570    }
  571}
  572impl Column for WorkspaceId {
  573    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  574        i64::column(statement, start_index)
  575            .map(|(i, next_index)| (Self(i), next_index))
  576            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  577    }
  578}
  579impl From<WorkspaceId> for i64 {
  580    fn from(val: WorkspaceId) -> Self {
  581        val.0
  582    }
  583}
  584
  585fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  586    let paths = cx.prompt_for_paths(options);
  587    cx.spawn(
  588        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  589            Ok(Some(paths)) => {
  590                cx.update(|cx| {
  591                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  592                });
  593            }
  594            Ok(None) => {}
  595            Err(err) => {
  596                util::log_err(&err);
  597                cx.update(|cx| {
  598                    if let Some(workspace_window) = cx
  599                        .active_window()
  600                        .and_then(|window| window.downcast::<Workspace>())
  601                    {
  602                        workspace_window
  603                            .update(cx, |workspace, _, cx| {
  604                                workspace.show_portal_error(err.to_string(), cx);
  605                            })
  606                            .ok();
  607                    }
  608                });
  609            }
  610        },
  611    )
  612    .detach();
  613}
  614
  615pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  616    component::init();
  617    theme_preview::init(cx);
  618    toast_layer::init(cx);
  619    history_manager::init(cx);
  620
  621    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  622        .on_action(|_: &Reload, cx| reload(cx))
  623        .on_action({
  624            let app_state = Arc::downgrade(&app_state);
  625            move |_: &Open, cx: &mut App| {
  626                if let Some(app_state) = app_state.upgrade() {
  627                    prompt_and_open_paths(
  628                        app_state,
  629                        PathPromptOptions {
  630                            files: true,
  631                            directories: true,
  632                            multiple: true,
  633                            prompt: None,
  634                        },
  635                        cx,
  636                    );
  637                }
  638            }
  639        })
  640        .on_action({
  641            let app_state = Arc::downgrade(&app_state);
  642            move |_: &OpenFiles, cx: &mut App| {
  643                let directories = cx.can_select_mixed_files_and_dirs();
  644                if let Some(app_state) = app_state.upgrade() {
  645                    prompt_and_open_paths(
  646                        app_state,
  647                        PathPromptOptions {
  648                            files: true,
  649                            directories,
  650                            multiple: true,
  651                            prompt: None,
  652                        },
  653                        cx,
  654                    );
  655                }
  656            }
  657        });
  658}
  659
  660type BuildProjectItemFn =
  661    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  662
  663type BuildProjectItemForPathFn =
  664    fn(
  665        &Entity<Project>,
  666        &ProjectPath,
  667        &mut Window,
  668        &mut App,
  669    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  670
  671#[derive(Clone, Default)]
  672struct ProjectItemRegistry {
  673    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  674    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  675}
  676
  677impl ProjectItemRegistry {
  678    fn register<T: ProjectItem>(&mut self) {
  679        self.build_project_item_fns_by_type.insert(
  680            TypeId::of::<T::Item>(),
  681            |item, project, pane, window, cx| {
  682                let item = item.downcast().unwrap();
  683                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  684                    as Box<dyn ItemHandle>
  685            },
  686        );
  687        self.build_project_item_for_path_fns
  688            .push(|project, project_path, window, cx| {
  689                let project_path = project_path.clone();
  690                let is_file = project
  691                    .read(cx)
  692                    .entry_for_path(&project_path, cx)
  693                    .is_some_and(|entry| entry.is_file());
  694                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  695                let is_local = project.read(cx).is_local();
  696                let project_item =
  697                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  698                let project = project.clone();
  699                Some(window.spawn(cx, async move |cx| {
  700                    match project_item.await.with_context(|| {
  701                        format!(
  702                            "opening project path {:?}",
  703                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  704                        )
  705                    }) {
  706                        Ok(project_item) => {
  707                            let project_item = project_item;
  708                            let project_entry_id: Option<ProjectEntryId> =
  709                                project_item.read_with(cx, project::ProjectItem::entry_id);
  710                            let build_workspace_item = Box::new(
  711                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  712                                    Box::new(cx.new(|cx| {
  713                                        T::for_project_item(
  714                                            project,
  715                                            Some(pane),
  716                                            project_item,
  717                                            window,
  718                                            cx,
  719                                        )
  720                                    })) as Box<dyn ItemHandle>
  721                                },
  722                            ) as Box<_>;
  723                            Ok((project_entry_id, build_workspace_item))
  724                        }
  725                        Err(e) => {
  726                            log::warn!("Failed to open a project item: {e:#}");
  727                            if e.error_code() == ErrorCode::Internal {
  728                                if let Some(abs_path) =
  729                                    entry_abs_path.as_deref().filter(|_| is_file)
  730                                {
  731                                    if let Some(broken_project_item_view) =
  732                                        cx.update(|window, cx| {
  733                                            T::for_broken_project_item(
  734                                                abs_path, is_local, &e, window, cx,
  735                                            )
  736                                        })?
  737                                    {
  738                                        let build_workspace_item = Box::new(
  739                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  740                                                cx.new(|_| broken_project_item_view).boxed_clone()
  741                                            },
  742                                        )
  743                                        as Box<_>;
  744                                        return Ok((None, build_workspace_item));
  745                                    }
  746                                }
  747                            }
  748                            Err(e)
  749                        }
  750                    }
  751                }))
  752            });
  753    }
  754
  755    fn open_path(
  756        &self,
  757        project: &Entity<Project>,
  758        path: &ProjectPath,
  759        window: &mut Window,
  760        cx: &mut App,
  761    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  762        let Some(open_project_item) = self
  763            .build_project_item_for_path_fns
  764            .iter()
  765            .rev()
  766            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  767        else {
  768            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  769        };
  770        open_project_item
  771    }
  772
  773    fn build_item<T: project::ProjectItem>(
  774        &self,
  775        item: Entity<T>,
  776        project: Entity<Project>,
  777        pane: Option<&Pane>,
  778        window: &mut Window,
  779        cx: &mut App,
  780    ) -> Option<Box<dyn ItemHandle>> {
  781        let build = self
  782            .build_project_item_fns_by_type
  783            .get(&TypeId::of::<T>())?;
  784        Some(build(item.into_any(), project, pane, window, cx))
  785    }
  786}
  787
  788type WorkspaceItemBuilder =
  789    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  790
  791impl Global for ProjectItemRegistry {}
  792
  793/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  794/// items will get a chance to open the file, starting from the project item that
  795/// was added last.
  796pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  797    cx.default_global::<ProjectItemRegistry>().register::<I>();
  798}
  799
  800#[derive(Default)]
  801pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  802
  803struct FollowableViewDescriptor {
  804    from_state_proto: fn(
  805        Entity<Workspace>,
  806        ViewId,
  807        &mut Option<proto::view::Variant>,
  808        &mut Window,
  809        &mut App,
  810    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  811    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  812}
  813
  814impl Global for FollowableViewRegistry {}
  815
  816impl FollowableViewRegistry {
  817    pub fn register<I: FollowableItem>(cx: &mut App) {
  818        cx.default_global::<Self>().0.insert(
  819            TypeId::of::<I>(),
  820            FollowableViewDescriptor {
  821                from_state_proto: |workspace, id, state, window, cx| {
  822                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  823                        cx.foreground_executor()
  824                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  825                    })
  826                },
  827                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  828            },
  829        );
  830    }
  831
  832    pub fn from_state_proto(
  833        workspace: Entity<Workspace>,
  834        view_id: ViewId,
  835        mut state: Option<proto::view::Variant>,
  836        window: &mut Window,
  837        cx: &mut App,
  838    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  839        cx.update_default_global(|this: &mut Self, cx| {
  840            this.0.values().find_map(|descriptor| {
  841                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  842            })
  843        })
  844    }
  845
  846    pub fn to_followable_view(
  847        view: impl Into<AnyView>,
  848        cx: &App,
  849    ) -> Option<Box<dyn FollowableItemHandle>> {
  850        let this = cx.try_global::<Self>()?;
  851        let view = view.into();
  852        let descriptor = this.0.get(&view.entity_type())?;
  853        Some((descriptor.to_followable_view)(&view))
  854    }
  855}
  856
  857#[derive(Copy, Clone)]
  858struct SerializableItemDescriptor {
  859    deserialize: fn(
  860        Entity<Project>,
  861        WeakEntity<Workspace>,
  862        WorkspaceId,
  863        ItemId,
  864        &mut Window,
  865        &mut Context<Pane>,
  866    ) -> Task<Result<Box<dyn ItemHandle>>>,
  867    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  868    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  869}
  870
  871#[derive(Default)]
  872struct SerializableItemRegistry {
  873    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  874    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  875}
  876
  877impl Global for SerializableItemRegistry {}
  878
  879impl SerializableItemRegistry {
  880    fn deserialize(
  881        item_kind: &str,
  882        project: Entity<Project>,
  883        workspace: WeakEntity<Workspace>,
  884        workspace_id: WorkspaceId,
  885        item_item: ItemId,
  886        window: &mut Window,
  887        cx: &mut Context<Pane>,
  888    ) -> Task<Result<Box<dyn ItemHandle>>> {
  889        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  890            return Task::ready(Err(anyhow!(
  891                "cannot deserialize {}, descriptor not found",
  892                item_kind
  893            )));
  894        };
  895
  896        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  897    }
  898
  899    fn cleanup(
  900        item_kind: &str,
  901        workspace_id: WorkspaceId,
  902        loaded_items: Vec<ItemId>,
  903        window: &mut Window,
  904        cx: &mut App,
  905    ) -> Task<Result<()>> {
  906        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  907            return Task::ready(Err(anyhow!(
  908                "cannot cleanup {}, descriptor not found",
  909                item_kind
  910            )));
  911        };
  912
  913        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  914    }
  915
  916    fn view_to_serializable_item_handle(
  917        view: AnyView,
  918        cx: &App,
  919    ) -> Option<Box<dyn SerializableItemHandle>> {
  920        let this = cx.try_global::<Self>()?;
  921        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  922        Some((descriptor.view_to_serializable_item)(view))
  923    }
  924
  925    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  926        let this = cx.try_global::<Self>()?;
  927        this.descriptors_by_kind.get(item_kind).copied()
  928    }
  929}
  930
  931pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  932    let serialized_item_kind = I::serialized_item_kind();
  933
  934    let registry = cx.default_global::<SerializableItemRegistry>();
  935    let descriptor = SerializableItemDescriptor {
  936        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  937            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  938            cx.foreground_executor()
  939                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  940        },
  941        cleanup: |workspace_id, loaded_items, window, cx| {
  942            I::cleanup(workspace_id, loaded_items, window, cx)
  943        },
  944        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  945    };
  946    registry
  947        .descriptors_by_kind
  948        .insert(Arc::from(serialized_item_kind), descriptor);
  949    registry
  950        .descriptors_by_type
  951        .insert(TypeId::of::<I>(), descriptor);
  952}
  953
  954pub struct AppState {
  955    pub languages: Arc<LanguageRegistry>,
  956    pub client: Arc<Client>,
  957    pub user_store: Entity<UserStore>,
  958    pub workspace_store: Entity<WorkspaceStore>,
  959    pub fs: Arc<dyn fs::Fs>,
  960    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  961    pub node_runtime: NodeRuntime,
  962    pub session: Entity<AppSession>,
  963}
  964
  965struct GlobalAppState(Weak<AppState>);
  966
  967impl Global for GlobalAppState {}
  968
  969pub struct WorkspaceStore {
  970    workspaces: HashSet<WindowHandle<Workspace>>,
  971    client: Arc<Client>,
  972    _subscriptions: Vec<client::Subscription>,
  973}
  974
  975#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  976pub enum CollaboratorId {
  977    PeerId(PeerId),
  978    Agent,
  979}
  980
  981impl From<PeerId> for CollaboratorId {
  982    fn from(peer_id: PeerId) -> Self {
  983        CollaboratorId::PeerId(peer_id)
  984    }
  985}
  986
  987impl From<&PeerId> for CollaboratorId {
  988    fn from(peer_id: &PeerId) -> Self {
  989        CollaboratorId::PeerId(*peer_id)
  990    }
  991}
  992
  993#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  994struct Follower {
  995    project_id: Option<u64>,
  996    peer_id: PeerId,
  997}
  998
  999impl AppState {
 1000    #[track_caller]
 1001    pub fn global(cx: &App) -> Weak<Self> {
 1002        cx.global::<GlobalAppState>().0.clone()
 1003    }
 1004    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1005        cx.try_global::<GlobalAppState>()
 1006            .map(|state| state.0.clone())
 1007    }
 1008    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1009        cx.set_global(GlobalAppState(state));
 1010    }
 1011
 1012    #[cfg(any(test, feature = "test-support"))]
 1013    pub fn test(cx: &mut App) -> Arc<Self> {
 1014        use fs::Fs;
 1015        use node_runtime::NodeRuntime;
 1016        use session::Session;
 1017        use settings::SettingsStore;
 1018
 1019        if !cx.has_global::<SettingsStore>() {
 1020            let settings_store = SettingsStore::test(cx);
 1021            cx.set_global(settings_store);
 1022        }
 1023
 1024        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1025        <dyn Fs>::set_global(fs.clone(), cx);
 1026        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1027        let clock = Arc::new(clock::FakeSystemClock::new());
 1028        let http_client = http_client::FakeHttpClient::with_404_response();
 1029        let client = Client::new(clock, http_client, cx);
 1030        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1031        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1032        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1033
 1034        theme::init(theme::LoadThemes::JustBase, cx);
 1035        client::init(&client, cx);
 1036
 1037        Arc::new(Self {
 1038            client,
 1039            fs,
 1040            languages,
 1041            user_store,
 1042            workspace_store,
 1043            node_runtime: NodeRuntime::unavailable(),
 1044            build_window_options: |_, _| Default::default(),
 1045            session,
 1046        })
 1047    }
 1048}
 1049
 1050struct DelayedDebouncedEditAction {
 1051    task: Option<Task<()>>,
 1052    cancel_channel: Option<oneshot::Sender<()>>,
 1053}
 1054
 1055impl DelayedDebouncedEditAction {
 1056    fn new() -> DelayedDebouncedEditAction {
 1057        DelayedDebouncedEditAction {
 1058            task: None,
 1059            cancel_channel: None,
 1060        }
 1061    }
 1062
 1063    fn fire_new<F>(
 1064        &mut self,
 1065        delay: Duration,
 1066        window: &mut Window,
 1067        cx: &mut Context<Workspace>,
 1068        func: F,
 1069    ) where
 1070        F: 'static
 1071            + Send
 1072            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1073    {
 1074        if let Some(channel) = self.cancel_channel.take() {
 1075            _ = channel.send(());
 1076        }
 1077
 1078        let (sender, mut receiver) = oneshot::channel::<()>();
 1079        self.cancel_channel = Some(sender);
 1080
 1081        let previous_task = self.task.take();
 1082        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1083            let mut timer = cx.background_executor().timer(delay).fuse();
 1084            if let Some(previous_task) = previous_task {
 1085                previous_task.await;
 1086            }
 1087
 1088            futures::select_biased! {
 1089                _ = receiver => return,
 1090                    _ = timer => {}
 1091            }
 1092
 1093            if let Some(result) = workspace
 1094                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1095                .log_err()
 1096            {
 1097                result.await.log_err();
 1098            }
 1099        }));
 1100    }
 1101}
 1102
 1103pub enum Event {
 1104    PaneAdded(Entity<Pane>),
 1105    PaneRemoved,
 1106    ItemAdded {
 1107        item: Box<dyn ItemHandle>,
 1108    },
 1109    ActiveItemChanged,
 1110    ItemRemoved {
 1111        item_id: EntityId,
 1112    },
 1113    UserSavedItem {
 1114        pane: WeakEntity<Pane>,
 1115        item: Box<dyn WeakItemHandle>,
 1116        save_intent: SaveIntent,
 1117    },
 1118    ContactRequestedJoin(u64),
 1119    WorkspaceCreated(WeakEntity<Workspace>),
 1120    OpenBundledFile {
 1121        text: Cow<'static, str>,
 1122        title: &'static str,
 1123        language: &'static str,
 1124    },
 1125    ZoomChanged,
 1126    ModalOpened,
 1127}
 1128
 1129#[derive(Debug)]
 1130pub enum OpenVisible {
 1131    All,
 1132    None,
 1133    OnlyFiles,
 1134    OnlyDirectories,
 1135}
 1136
 1137enum WorkspaceLocation {
 1138    // Valid local paths or SSH project to serialize
 1139    Location(SerializedWorkspaceLocation, PathList),
 1140    // No valid location found hence clear session id
 1141    DetachFromSession,
 1142    // No valid location found to serialize
 1143    None,
 1144}
 1145
 1146type PromptForNewPath = Box<
 1147    dyn Fn(
 1148        &mut Workspace,
 1149        DirectoryLister,
 1150        &mut Window,
 1151        &mut Context<Workspace>,
 1152    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1153>;
 1154
 1155type PromptForOpenPath = Box<
 1156    dyn Fn(
 1157        &mut Workspace,
 1158        DirectoryLister,
 1159        &mut Window,
 1160        &mut Context<Workspace>,
 1161    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1162>;
 1163
 1164#[derive(Default)]
 1165struct DispatchingKeystrokes {
 1166    dispatched: HashSet<Vec<Keystroke>>,
 1167    queue: VecDeque<Keystroke>,
 1168    task: Option<Shared<Task<()>>>,
 1169}
 1170
 1171/// Collects everything project-related for a certain window opened.
 1172/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1173///
 1174/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1175/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1176/// that can be used to register a global action to be triggered from any place in the window.
 1177pub struct Workspace {
 1178    weak_self: WeakEntity<Self>,
 1179    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1180    zoomed: Option<AnyWeakView>,
 1181    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1182    zoomed_position: Option<DockPosition>,
 1183    center: PaneGroup,
 1184    left_dock: Entity<Dock>,
 1185    bottom_dock: Entity<Dock>,
 1186    right_dock: Entity<Dock>,
 1187    panes: Vec<Entity<Pane>>,
 1188    active_worktree_override: Option<WorktreeId>,
 1189    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1190    active_pane: Entity<Pane>,
 1191    last_active_center_pane: Option<WeakEntity<Pane>>,
 1192    last_active_view_id: Option<proto::ViewId>,
 1193    status_bar: Entity<StatusBar>,
 1194    modal_layer: Entity<ModalLayer>,
 1195    toast_layer: Entity<ToastLayer>,
 1196    titlebar_item: Option<AnyView>,
 1197    notifications: Notifications,
 1198    suppressed_notifications: HashSet<NotificationId>,
 1199    project: Entity<Project>,
 1200    follower_states: HashMap<CollaboratorId, FollowerState>,
 1201    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1202    window_edited: bool,
 1203    last_window_title: Option<String>,
 1204    dirty_items: HashMap<EntityId, Subscription>,
 1205    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1206    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1207    database_id: Option<WorkspaceId>,
 1208    app_state: Arc<AppState>,
 1209    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1210    _subscriptions: Vec<Subscription>,
 1211    _apply_leader_updates: Task<Result<()>>,
 1212    _observe_current_user: Task<Result<()>>,
 1213    _schedule_serialize_workspace: Option<Task<()>>,
 1214    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1215    pane_history_timestamp: Arc<AtomicUsize>,
 1216    bounds: Bounds<Pixels>,
 1217    pub centered_layout: bool,
 1218    bounds_save_task_queued: Option<Task<()>>,
 1219    on_prompt_for_new_path: Option<PromptForNewPath>,
 1220    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1221    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1222    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1223    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1224    _items_serializer: Task<Result<()>>,
 1225    session_id: Option<String>,
 1226    scheduled_tasks: Vec<Task<()>>,
 1227    last_open_dock_positions: Vec<DockPosition>,
 1228    removing: bool,
 1229    utility_panes: UtilityPaneState,
 1230}
 1231
 1232impl EventEmitter<Event> for Workspace {}
 1233
 1234#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1235pub struct ViewId {
 1236    pub creator: CollaboratorId,
 1237    pub id: u64,
 1238}
 1239
 1240pub struct FollowerState {
 1241    center_pane: Entity<Pane>,
 1242    dock_pane: Option<Entity<Pane>>,
 1243    active_view_id: Option<ViewId>,
 1244    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1245}
 1246
 1247struct FollowerView {
 1248    view: Box<dyn FollowableItemHandle>,
 1249    location: Option<proto::PanelId>,
 1250}
 1251
 1252impl Workspace {
 1253    pub fn new(
 1254        workspace_id: Option<WorkspaceId>,
 1255        project: Entity<Project>,
 1256        app_state: Arc<AppState>,
 1257        window: &mut Window,
 1258        cx: &mut Context<Self>,
 1259    ) -> Self {
 1260        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1261            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1262                if let TrustedWorktreesEvent::Trusted(..) = e {
 1263                    // Do not persist auto trusted worktrees
 1264                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1265                        worktrees_store.update(cx, |worktrees_store, cx| {
 1266                            worktrees_store.schedule_serialization(
 1267                                cx,
 1268                                |new_trusted_worktrees, cx| {
 1269                                    let timeout =
 1270                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1271                                    cx.background_spawn(async move {
 1272                                        timeout.await;
 1273                                        persistence::DB
 1274                                            .save_trusted_worktrees(new_trusted_worktrees)
 1275                                            .await
 1276                                            .log_err();
 1277                                    })
 1278                                },
 1279                            )
 1280                        });
 1281                    }
 1282                }
 1283            })
 1284            .detach();
 1285
 1286            cx.observe_global::<SettingsStore>(|_, cx| {
 1287                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1288                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1289                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1290                            trusted_worktrees.auto_trust_all(cx);
 1291                        })
 1292                    }
 1293                }
 1294            })
 1295            .detach();
 1296        }
 1297
 1298        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1299            match event {
 1300                project::Event::RemoteIdChanged(_) => {
 1301                    this.update_window_title(window, cx);
 1302                }
 1303
 1304                project::Event::CollaboratorLeft(peer_id) => {
 1305                    this.collaborator_left(*peer_id, window, cx);
 1306                }
 1307
 1308                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(..) => {
 1309                    this.update_window_title(window, cx);
 1310                    this.serialize_workspace(window, cx);
 1311                    this.update_history(cx);
 1312                }
 1313
 1314                project::Event::WorktreeUpdatedEntries(..) => {
 1315                    this.update_window_title(window, cx);
 1316                    this.serialize_workspace(window, cx);
 1317                }
 1318
 1319                project::Event::DisconnectedFromHost => {
 1320                    this.update_window_edited(window, cx);
 1321                    let leaders_to_unfollow =
 1322                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1323                    for leader_id in leaders_to_unfollow {
 1324                        this.unfollow(leader_id, window, cx);
 1325                    }
 1326                }
 1327
 1328                project::Event::DisconnectedFromRemote {
 1329                    server_not_running: _,
 1330                } => {
 1331                    this.update_window_edited(window, cx);
 1332                }
 1333
 1334                project::Event::Closed => {
 1335                    window.remove_window();
 1336                }
 1337
 1338                project::Event::DeletedEntry(_, entry_id) => {
 1339                    for pane in this.panes.iter() {
 1340                        pane.update(cx, |pane, cx| {
 1341                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1342                        });
 1343                    }
 1344                }
 1345
 1346                project::Event::Toast {
 1347                    notification_id,
 1348                    message,
 1349                } => this.show_notification(
 1350                    NotificationId::named(notification_id.clone()),
 1351                    cx,
 1352                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1353                ),
 1354
 1355                project::Event::HideToast { notification_id } => {
 1356                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1357                }
 1358
 1359                project::Event::LanguageServerPrompt(request) => {
 1360                    struct LanguageServerPrompt;
 1361
 1362                    let mut hasher = DefaultHasher::new();
 1363                    request.lsp_name.as_str().hash(&mut hasher);
 1364                    let id = hasher.finish();
 1365
 1366                    this.show_notification(
 1367                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1368                        cx,
 1369                        |cx| {
 1370                            cx.new(|cx| {
 1371                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1372                            })
 1373                        },
 1374                    );
 1375                }
 1376
 1377                project::Event::AgentLocationChanged => {
 1378                    this.handle_agent_location_changed(window, cx)
 1379                }
 1380
 1381                _ => {}
 1382            }
 1383            cx.notify()
 1384        })
 1385        .detach();
 1386
 1387        cx.subscribe_in(
 1388            &project.read(cx).breakpoint_store(),
 1389            window,
 1390            |workspace, _, event, window, cx| match event {
 1391                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1392                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1393                    workspace.serialize_workspace(window, cx);
 1394                }
 1395                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1396            },
 1397        )
 1398        .detach();
 1399        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1400            cx.subscribe_in(
 1401                &toolchain_store,
 1402                window,
 1403                |workspace, _, event, window, cx| match event {
 1404                    ToolchainStoreEvent::CustomToolchainsModified => {
 1405                        workspace.serialize_workspace(window, cx);
 1406                    }
 1407                    _ => {}
 1408                },
 1409            )
 1410            .detach();
 1411        }
 1412
 1413        cx.on_focus_lost(window, |this, window, cx| {
 1414            let focus_handle = this.focus_handle(cx);
 1415            window.focus(&focus_handle, cx);
 1416        })
 1417        .detach();
 1418
 1419        let weak_handle = cx.entity().downgrade();
 1420        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1421
 1422        let center_pane = cx.new(|cx| {
 1423            let mut center_pane = Pane::new(
 1424                weak_handle.clone(),
 1425                project.clone(),
 1426                pane_history_timestamp.clone(),
 1427                None,
 1428                NewFile.boxed_clone(),
 1429                true,
 1430                window,
 1431                cx,
 1432            );
 1433            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1434            center_pane
 1435        });
 1436        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1437            .detach();
 1438
 1439        window.focus(&center_pane.focus_handle(cx), cx);
 1440
 1441        cx.emit(Event::PaneAdded(center_pane.clone()));
 1442
 1443        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1444        app_state.workspace_store.update(cx, |store, _| {
 1445            store.workspaces.insert(window_handle);
 1446        });
 1447
 1448        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1449        let mut connection_status = app_state.client.status();
 1450        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1451            current_user.next().await;
 1452            connection_status.next().await;
 1453            let mut stream =
 1454                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1455
 1456            while stream.recv().await.is_some() {
 1457                this.update(cx, |_, cx| cx.notify())?;
 1458            }
 1459            anyhow::Ok(())
 1460        });
 1461
 1462        // All leader updates are enqueued and then processed in a single task, so
 1463        // that each asynchronous operation can be run in order.
 1464        let (leader_updates_tx, mut leader_updates_rx) =
 1465            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1466        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1467            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1468                Self::process_leader_update(&this, leader_id, update, cx)
 1469                    .await
 1470                    .log_err();
 1471            }
 1472
 1473            Ok(())
 1474        });
 1475
 1476        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1477        let modal_layer = cx.new(|_| ModalLayer::new());
 1478        let toast_layer = cx.new(|_| ToastLayer::new());
 1479        cx.subscribe(
 1480            &modal_layer,
 1481            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1482                cx.emit(Event::ModalOpened);
 1483            },
 1484        )
 1485        .detach();
 1486
 1487        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1488        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1489        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1490        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1491        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1492        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1493        let status_bar = cx.new(|cx| {
 1494            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1495            status_bar.add_left_item(left_dock_buttons, window, cx);
 1496            status_bar.add_right_item(right_dock_buttons, window, cx);
 1497            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1498            status_bar
 1499        });
 1500
 1501        let session_id = app_state.session.read(cx).id().to_owned();
 1502
 1503        let mut active_call = None;
 1504        if let Some(call) = ActiveCall::try_global(cx) {
 1505            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1506            active_call = Some((call, subscriptions));
 1507        }
 1508
 1509        let (serializable_items_tx, serializable_items_rx) =
 1510            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1511        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1512            Self::serialize_items(&this, serializable_items_rx, cx).await
 1513        });
 1514
 1515        let subscriptions = vec![
 1516            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1517            cx.observe_window_bounds(window, move |this, window, cx| {
 1518                if this.bounds_save_task_queued.is_some() {
 1519                    return;
 1520                }
 1521                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1522                    cx.background_executor()
 1523                        .timer(Duration::from_millis(100))
 1524                        .await;
 1525                    this.update_in(cx, |this, window, cx| {
 1526                        if let Some(display) = window.display(cx)
 1527                            && let Ok(display_uuid) = display.uuid()
 1528                        {
 1529                            let window_bounds = window.inner_window_bounds();
 1530                            let has_paths = !this.root_paths(cx).is_empty();
 1531                            if !has_paths {
 1532                                cx.background_executor()
 1533                                    .spawn(persistence::write_default_window_bounds(
 1534                                        window_bounds,
 1535                                        display_uuid,
 1536                                    ))
 1537                                    .detach_and_log_err(cx);
 1538                            }
 1539                            if let Some(database_id) = workspace_id {
 1540                                cx.background_executor()
 1541                                    .spawn(DB.set_window_open_status(
 1542                                        database_id,
 1543                                        SerializedWindowBounds(window_bounds),
 1544                                        display_uuid,
 1545                                    ))
 1546                                    .detach_and_log_err(cx);
 1547                            } else {
 1548                                cx.background_executor()
 1549                                    .spawn(persistence::write_default_window_bounds(
 1550                                        window_bounds,
 1551                                        display_uuid,
 1552                                    ))
 1553                                    .detach_and_log_err(cx);
 1554                            }
 1555                        }
 1556                        this.bounds_save_task_queued.take();
 1557                    })
 1558                    .ok();
 1559                }));
 1560                cx.notify();
 1561            }),
 1562            cx.observe_window_appearance(window, |_, window, cx| {
 1563                let window_appearance = window.appearance();
 1564
 1565                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1566
 1567                GlobalTheme::reload_theme(cx);
 1568                GlobalTheme::reload_icon_theme(cx);
 1569            }),
 1570            cx.on_release(move |this, cx| {
 1571                this.app_state.workspace_store.update(cx, move |store, _| {
 1572                    store.workspaces.remove(&window_handle);
 1573                })
 1574            }),
 1575        ];
 1576
 1577        cx.defer_in(window, move |this, window, cx| {
 1578            this.update_window_title(window, cx);
 1579            this.show_initial_notifications(cx);
 1580        });
 1581
 1582        let mut center = PaneGroup::new(center_pane.clone());
 1583        center.set_is_center(true);
 1584        center.mark_positions(cx);
 1585
 1586        Workspace {
 1587            weak_self: weak_handle.clone(),
 1588            zoomed: None,
 1589            zoomed_position: None,
 1590            previous_dock_drag_coordinates: None,
 1591            center,
 1592            panes: vec![center_pane.clone()],
 1593            panes_by_item: Default::default(),
 1594            active_pane: center_pane.clone(),
 1595            last_active_center_pane: Some(center_pane.downgrade()),
 1596            last_active_view_id: None,
 1597            status_bar,
 1598            modal_layer,
 1599            toast_layer,
 1600            titlebar_item: None,
 1601            active_worktree_override: None,
 1602            notifications: Notifications::default(),
 1603            suppressed_notifications: HashSet::default(),
 1604            left_dock,
 1605            bottom_dock,
 1606            right_dock,
 1607            project: project.clone(),
 1608            follower_states: Default::default(),
 1609            last_leaders_by_pane: Default::default(),
 1610            dispatching_keystrokes: Default::default(),
 1611            window_edited: false,
 1612            last_window_title: None,
 1613            dirty_items: Default::default(),
 1614            active_call,
 1615            database_id: workspace_id,
 1616            app_state,
 1617            _observe_current_user,
 1618            _apply_leader_updates,
 1619            _schedule_serialize_workspace: None,
 1620            _schedule_serialize_ssh_paths: None,
 1621            leader_updates_tx,
 1622            _subscriptions: subscriptions,
 1623            pane_history_timestamp,
 1624            workspace_actions: Default::default(),
 1625            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1626            bounds: Default::default(),
 1627            centered_layout: false,
 1628            bounds_save_task_queued: None,
 1629            on_prompt_for_new_path: None,
 1630            on_prompt_for_open_path: None,
 1631            terminal_provider: None,
 1632            debugger_provider: None,
 1633            serializable_items_tx,
 1634            _items_serializer,
 1635            session_id: Some(session_id),
 1636
 1637            scheduled_tasks: Vec::new(),
 1638            last_open_dock_positions: Vec::new(),
 1639            removing: false,
 1640            utility_panes: UtilityPaneState::default(),
 1641        }
 1642    }
 1643
 1644    pub fn new_local(
 1645        abs_paths: Vec<PathBuf>,
 1646        app_state: Arc<AppState>,
 1647        requesting_window: Option<WindowHandle<Workspace>>,
 1648        env: Option<HashMap<String, String>>,
 1649        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1650        cx: &mut App,
 1651    ) -> Task<
 1652        anyhow::Result<(
 1653            WindowHandle<Workspace>,
 1654            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1655        )>,
 1656    > {
 1657        let project_handle = Project::local(
 1658            app_state.client.clone(),
 1659            app_state.node_runtime.clone(),
 1660            app_state.user_store.clone(),
 1661            app_state.languages.clone(),
 1662            app_state.fs.clone(),
 1663            env,
 1664            Default::default(),
 1665            cx,
 1666        );
 1667
 1668        cx.spawn(async move |cx| {
 1669            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1670            for path in abs_paths.into_iter() {
 1671                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1672                    paths_to_open.push(canonical)
 1673                } else {
 1674                    paths_to_open.push(path)
 1675                }
 1676            }
 1677
 1678            let serialized_workspace =
 1679                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1680
 1681            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1682                paths_to_open = paths.ordered_paths().cloned().collect();
 1683                if !paths.is_lexicographically_ordered() {
 1684                    project_handle.update(cx, |project, cx| {
 1685                        project.set_worktrees_reordered(true, cx);
 1686                    });
 1687                }
 1688            }
 1689
 1690            // Get project paths for all of the abs_paths
 1691            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1692                Vec::with_capacity(paths_to_open.len());
 1693
 1694            for path in paths_to_open.into_iter() {
 1695                if let Some((_, project_entry)) = cx
 1696                    .update(|cx| {
 1697                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1698                    })
 1699                    .await
 1700                    .log_err()
 1701                {
 1702                    project_paths.push((path, Some(project_entry)));
 1703                } else {
 1704                    project_paths.push((path, None));
 1705                }
 1706            }
 1707
 1708            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1709                serialized_workspace.id
 1710            } else {
 1711                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1712            };
 1713
 1714            let toolchains = DB.toolchains(workspace_id).await?;
 1715
 1716            for (toolchain, worktree_path, path) in toolchains {
 1717                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1718                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1719                    this.find_worktree(&worktree_path, cx)
 1720                        .and_then(|(worktree, rel_path)| {
 1721                            if rel_path.is_empty() {
 1722                                Some(worktree.read(cx).id())
 1723                            } else {
 1724                                None
 1725                            }
 1726                        })
 1727                }) else {
 1728                    // We did not find a worktree with a given path, but that's whatever.
 1729                    continue;
 1730                };
 1731                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1732                    continue;
 1733                }
 1734
 1735                project_handle
 1736                    .update(cx, |this, cx| {
 1737                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1738                    })
 1739                    .await;
 1740            }
 1741            if let Some(workspace) = serialized_workspace.as_ref() {
 1742                project_handle.update(cx, |this, cx| {
 1743                    for (scope, toolchains) in &workspace.user_toolchains {
 1744                        for toolchain in toolchains {
 1745                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1746                        }
 1747                    }
 1748                });
 1749            }
 1750
 1751            let window = if let Some(window) = requesting_window {
 1752                let centered_layout = serialized_workspace
 1753                    .as_ref()
 1754                    .map(|w| w.centered_layout)
 1755                    .unwrap_or(false);
 1756
 1757                cx.update_window(window.into(), |_, window, cx| {
 1758                    window.replace_root(cx, |window, cx| {
 1759                        let mut workspace = Workspace::new(
 1760                            Some(workspace_id),
 1761                            project_handle.clone(),
 1762                            app_state.clone(),
 1763                            window,
 1764                            cx,
 1765                        );
 1766
 1767                        workspace.centered_layout = centered_layout;
 1768
 1769                        // Call init callback to add items before window renders
 1770                        if let Some(init) = init {
 1771                            init(&mut workspace, window, cx);
 1772                        }
 1773
 1774                        workspace
 1775                    });
 1776                })?;
 1777                window
 1778            } else {
 1779                let window_bounds_override = window_bounds_env_override();
 1780
 1781                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1782                    (Some(WindowBounds::Windowed(bounds)), None)
 1783                } else if let Some(workspace) = serialized_workspace.as_ref()
 1784                    && let Some(display) = workspace.display
 1785                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1786                {
 1787                    // Reopening an existing workspace - restore its saved bounds
 1788                    (Some(bounds.0), Some(display))
 1789                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1790                    // New or empty workspace - use the last known window bounds
 1791                    (Some(bounds), Some(display))
 1792                } else {
 1793                    // New window - let GPUI's default_bounds() handle cascading
 1794                    (None, None)
 1795                };
 1796
 1797                // Use the serialized workspace to construct the new window
 1798                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1799                options.window_bounds = window_bounds;
 1800                let centered_layout = serialized_workspace
 1801                    .as_ref()
 1802                    .map(|w| w.centered_layout)
 1803                    .unwrap_or(false);
 1804                cx.open_window(options, {
 1805                    let app_state = app_state.clone();
 1806                    let project_handle = project_handle.clone();
 1807                    move |window, cx| {
 1808                        cx.new(|cx| {
 1809                            let mut workspace = Workspace::new(
 1810                                Some(workspace_id),
 1811                                project_handle,
 1812                                app_state,
 1813                                window,
 1814                                cx,
 1815                            );
 1816                            workspace.centered_layout = centered_layout;
 1817
 1818                            // Call init callback to add items before window renders
 1819                            if let Some(init) = init {
 1820                                init(&mut workspace, window, cx);
 1821                            }
 1822
 1823                            workspace
 1824                        })
 1825                    }
 1826                })?
 1827            };
 1828
 1829            notify_if_database_failed(window, cx);
 1830            let opened_items = window
 1831                .update(cx, |_workspace, window, cx| {
 1832                    open_items(serialized_workspace, project_paths, window, cx)
 1833                })?
 1834                .await
 1835                .unwrap_or_default();
 1836
 1837            window
 1838                .update(cx, |workspace, window, cx| {
 1839                    window.activate_window();
 1840                    workspace.update_history(cx);
 1841                })
 1842                .log_err();
 1843            Ok((window, opened_items))
 1844        })
 1845    }
 1846
 1847    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1848        self.weak_self.clone()
 1849    }
 1850
 1851    pub fn left_dock(&self) -> &Entity<Dock> {
 1852        &self.left_dock
 1853    }
 1854
 1855    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1856        &self.bottom_dock
 1857    }
 1858
 1859    pub fn set_bottom_dock_layout(
 1860        &mut self,
 1861        layout: BottomDockLayout,
 1862        window: &mut Window,
 1863        cx: &mut Context<Self>,
 1864    ) {
 1865        let fs = self.project().read(cx).fs();
 1866        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1867            content.workspace.bottom_dock_layout = Some(layout);
 1868        });
 1869
 1870        cx.notify();
 1871        self.serialize_workspace(window, cx);
 1872    }
 1873
 1874    pub fn right_dock(&self) -> &Entity<Dock> {
 1875        &self.right_dock
 1876    }
 1877
 1878    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1879        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1880    }
 1881
 1882    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1883        match position {
 1884            DockPosition::Left => &self.left_dock,
 1885            DockPosition::Bottom => &self.bottom_dock,
 1886            DockPosition::Right => &self.right_dock,
 1887        }
 1888    }
 1889
 1890    pub fn is_edited(&self) -> bool {
 1891        self.window_edited
 1892    }
 1893
 1894    pub fn add_panel<T: Panel>(
 1895        &mut self,
 1896        panel: Entity<T>,
 1897        window: &mut Window,
 1898        cx: &mut Context<Self>,
 1899    ) {
 1900        let focus_handle = panel.panel_focus_handle(cx);
 1901        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1902            .detach();
 1903
 1904        let dock_position = panel.position(window, cx);
 1905        let dock = self.dock_at_position(dock_position);
 1906
 1907        dock.update(cx, |dock, cx| {
 1908            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1909        });
 1910    }
 1911
 1912    pub fn remove_panel<T: Panel>(
 1913        &mut self,
 1914        panel: &Entity<T>,
 1915        window: &mut Window,
 1916        cx: &mut Context<Self>,
 1917    ) {
 1918        let mut found_in_dock = None;
 1919        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1920            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1921
 1922            if found {
 1923                found_in_dock = Some(dock.clone());
 1924            }
 1925        }
 1926        if let Some(found_in_dock) = found_in_dock {
 1927            let position = found_in_dock.read(cx).position();
 1928            let slot = utility_slot_for_dock_position(position);
 1929            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1930        }
 1931    }
 1932
 1933    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1934        &self.status_bar
 1935    }
 1936
 1937    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1938        StatusBarSettings::get_global(cx).show
 1939    }
 1940
 1941    pub fn app_state(&self) -> &Arc<AppState> {
 1942        &self.app_state
 1943    }
 1944
 1945    pub fn user_store(&self) -> &Entity<UserStore> {
 1946        &self.app_state.user_store
 1947    }
 1948
 1949    pub fn project(&self) -> &Entity<Project> {
 1950        &self.project
 1951    }
 1952
 1953    pub fn path_style(&self, cx: &App) -> PathStyle {
 1954        self.project.read(cx).path_style(cx)
 1955    }
 1956
 1957    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1958        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1959
 1960        for pane_handle in &self.panes {
 1961            let pane = pane_handle.read(cx);
 1962
 1963            for entry in pane.activation_history() {
 1964                history.insert(
 1965                    entry.entity_id,
 1966                    history
 1967                        .get(&entry.entity_id)
 1968                        .cloned()
 1969                        .unwrap_or(0)
 1970                        .max(entry.timestamp),
 1971                );
 1972            }
 1973        }
 1974
 1975        history
 1976    }
 1977
 1978    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1979        let mut recent_item: Option<Entity<T>> = None;
 1980        let mut recent_timestamp = 0;
 1981        for pane_handle in &self.panes {
 1982            let pane = pane_handle.read(cx);
 1983            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1984                pane.items().map(|item| (item.item_id(), item)).collect();
 1985            for entry in pane.activation_history() {
 1986                if entry.timestamp > recent_timestamp
 1987                    && let Some(&item) = item_map.get(&entry.entity_id)
 1988                    && let Some(typed_item) = item.act_as::<T>(cx)
 1989                {
 1990                    recent_timestamp = entry.timestamp;
 1991                    recent_item = Some(typed_item);
 1992                }
 1993            }
 1994        }
 1995        recent_item
 1996    }
 1997
 1998    pub fn recent_navigation_history_iter(
 1999        &self,
 2000        cx: &App,
 2001    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2002        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2003        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2004
 2005        for pane in &self.panes {
 2006            let pane = pane.read(cx);
 2007
 2008            pane.nav_history()
 2009                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2010                    if let Some(fs_path) = &fs_path {
 2011                        abs_paths_opened
 2012                            .entry(fs_path.clone())
 2013                            .or_default()
 2014                            .insert(project_path.clone());
 2015                    }
 2016                    let timestamp = entry.timestamp;
 2017                    match history.entry(project_path) {
 2018                        hash_map::Entry::Occupied(mut entry) => {
 2019                            let (_, old_timestamp) = entry.get();
 2020                            if &timestamp > old_timestamp {
 2021                                entry.insert((fs_path, timestamp));
 2022                            }
 2023                        }
 2024                        hash_map::Entry::Vacant(entry) => {
 2025                            entry.insert((fs_path, timestamp));
 2026                        }
 2027                    }
 2028                });
 2029
 2030            if let Some(item) = pane.active_item()
 2031                && let Some(project_path) = item.project_path(cx)
 2032            {
 2033                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2034
 2035                if let Some(fs_path) = &fs_path {
 2036                    abs_paths_opened
 2037                        .entry(fs_path.clone())
 2038                        .or_default()
 2039                        .insert(project_path.clone());
 2040                }
 2041
 2042                history.insert(project_path, (fs_path, std::usize::MAX));
 2043            }
 2044        }
 2045
 2046        history
 2047            .into_iter()
 2048            .sorted_by_key(|(_, (_, order))| *order)
 2049            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2050            .rev()
 2051            .filter(move |(history_path, abs_path)| {
 2052                let latest_project_path_opened = abs_path
 2053                    .as_ref()
 2054                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2055                    .and_then(|project_paths| {
 2056                        project_paths
 2057                            .iter()
 2058                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2059                    });
 2060
 2061                latest_project_path_opened.is_none_or(|path| path == history_path)
 2062            })
 2063    }
 2064
 2065    pub fn recent_navigation_history(
 2066        &self,
 2067        limit: Option<usize>,
 2068        cx: &App,
 2069    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2070        self.recent_navigation_history_iter(cx)
 2071            .take(limit.unwrap_or(usize::MAX))
 2072            .collect()
 2073    }
 2074
 2075    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2076        for pane in &self.panes {
 2077            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2078        }
 2079    }
 2080
 2081    fn navigate_history(
 2082        &mut self,
 2083        pane: WeakEntity<Pane>,
 2084        mode: NavigationMode,
 2085        window: &mut Window,
 2086        cx: &mut Context<Workspace>,
 2087    ) -> Task<Result<()>> {
 2088        self.navigate_history_impl(pane, mode, window, |history, cx| history.pop(mode, cx), cx)
 2089    }
 2090
 2091    fn navigate_tag_history(
 2092        &mut self,
 2093        pane: WeakEntity<Pane>,
 2094        mode: TagNavigationMode,
 2095        window: &mut Window,
 2096        cx: &mut Context<Workspace>,
 2097    ) -> Task<Result<()>> {
 2098        self.navigate_history_impl(
 2099            pane,
 2100            NavigationMode::Normal,
 2101            window,
 2102            |history, _cx| history.pop_tag(mode),
 2103            cx,
 2104        )
 2105    }
 2106
 2107    fn navigate_history_impl(
 2108        &mut self,
 2109        pane: WeakEntity<Pane>,
 2110        mode: NavigationMode,
 2111        window: &mut Window,
 2112        mut cb: impl FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2113        cx: &mut Context<Workspace>,
 2114    ) -> Task<Result<()>> {
 2115        let to_load = if let Some(pane) = pane.upgrade() {
 2116            pane.update(cx, |pane, cx| {
 2117                window.focus(&pane.focus_handle(cx), cx);
 2118                loop {
 2119                    // Retrieve the weak item handle from the history.
 2120                    let entry = cb(pane.nav_history_mut(), cx)?;
 2121
 2122                    // If the item is still present in this pane, then activate it.
 2123                    if let Some(index) = entry
 2124                        .item
 2125                        .upgrade()
 2126                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2127                    {
 2128                        let prev_active_item_index = pane.active_item_index();
 2129                        pane.nav_history_mut().set_mode(mode);
 2130                        pane.activate_item(index, true, true, window, cx);
 2131                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2132
 2133                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2134                        if let Some(data) = entry.data {
 2135                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2136                        }
 2137
 2138                        if navigated {
 2139                            break None;
 2140                        }
 2141                    } else {
 2142                        // If the item is no longer present in this pane, then retrieve its
 2143                        // path info in order to reopen it.
 2144                        break pane
 2145                            .nav_history()
 2146                            .path_for_item(entry.item.id())
 2147                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2148                    }
 2149                }
 2150            })
 2151        } else {
 2152            None
 2153        };
 2154
 2155        if let Some((project_path, abs_path, entry)) = to_load {
 2156            // If the item was no longer present, then load it again from its previous path, first try the local path
 2157            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2158
 2159            cx.spawn_in(window, async move  |workspace, cx| {
 2160                let open_by_project_path = open_by_project_path.await;
 2161                let mut navigated = false;
 2162                match open_by_project_path
 2163                    .with_context(|| format!("Navigating to {project_path:?}"))
 2164                {
 2165                    Ok((project_entry_id, build_item)) => {
 2166                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2167                            pane.nav_history_mut().set_mode(mode);
 2168                            pane.active_item().map(|p| p.item_id())
 2169                        })?;
 2170
 2171                        pane.update_in(cx, |pane, window, cx| {
 2172                            let item = pane.open_item(
 2173                                project_entry_id,
 2174                                project_path,
 2175                                true,
 2176                                entry.is_preview,
 2177                                true,
 2178                                None,
 2179                                window, cx,
 2180                                build_item,
 2181                            );
 2182                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2183                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2184                            if let Some(data) = entry.data {
 2185                                navigated |= item.navigate(data, window, cx);
 2186                            }
 2187                        })?;
 2188                    }
 2189                    Err(open_by_project_path_e) => {
 2190                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2191                        // and its worktree is now dropped
 2192                        if let Some(abs_path) = abs_path {
 2193                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2194                                pane.nav_history_mut().set_mode(mode);
 2195                                pane.active_item().map(|p| p.item_id())
 2196                            })?;
 2197                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2198                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2199                            })?;
 2200                            match open_by_abs_path
 2201                                .await
 2202                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2203                            {
 2204                                Ok(item) => {
 2205                                    pane.update_in(cx, |pane, window, cx| {
 2206                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2207                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2208                                        if let Some(data) = entry.data {
 2209                                            navigated |= item.navigate(data, window, cx);
 2210                                        }
 2211                                    })?;
 2212                                }
 2213                                Err(open_by_abs_path_e) => {
 2214                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2215                                }
 2216                            }
 2217                        }
 2218                    }
 2219                }
 2220
 2221                if !navigated {
 2222                    workspace
 2223                        .update_in(cx, |workspace, window, cx| {
 2224                            Self::navigate_history(workspace, pane, mode, window, cx)
 2225                        })?
 2226                        .await?;
 2227                }
 2228
 2229                Ok(())
 2230            })
 2231        } else {
 2232            Task::ready(Ok(()))
 2233        }
 2234    }
 2235
 2236    pub fn go_back(
 2237        &mut self,
 2238        pane: WeakEntity<Pane>,
 2239        window: &mut Window,
 2240        cx: &mut Context<Workspace>,
 2241    ) -> Task<Result<()>> {
 2242        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2243    }
 2244
 2245    pub fn go_forward(
 2246        &mut self,
 2247        pane: WeakEntity<Pane>,
 2248        window: &mut Window,
 2249        cx: &mut Context<Workspace>,
 2250    ) -> Task<Result<()>> {
 2251        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2252    }
 2253
 2254    pub fn reopen_closed_item(
 2255        &mut self,
 2256        window: &mut Window,
 2257        cx: &mut Context<Workspace>,
 2258    ) -> Task<Result<()>> {
 2259        self.navigate_history(
 2260            self.active_pane().downgrade(),
 2261            NavigationMode::ReopeningClosedItem,
 2262            window,
 2263            cx,
 2264        )
 2265    }
 2266
 2267    pub fn client(&self) -> &Arc<Client> {
 2268        &self.app_state.client
 2269    }
 2270
 2271    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2272        self.titlebar_item = Some(item);
 2273        cx.notify();
 2274    }
 2275
 2276    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2277        self.on_prompt_for_new_path = Some(prompt)
 2278    }
 2279
 2280    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2281        self.on_prompt_for_open_path = Some(prompt)
 2282    }
 2283
 2284    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2285        self.terminal_provider = Some(Box::new(provider));
 2286    }
 2287
 2288    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2289        self.debugger_provider = Some(Arc::new(provider));
 2290    }
 2291
 2292    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2293        self.debugger_provider.clone()
 2294    }
 2295
 2296    pub fn prompt_for_open_path(
 2297        &mut self,
 2298        path_prompt_options: PathPromptOptions,
 2299        lister: DirectoryLister,
 2300        window: &mut Window,
 2301        cx: &mut Context<Self>,
 2302    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2303        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2304            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2305            let rx = prompt(self, lister, window, cx);
 2306            self.on_prompt_for_open_path = Some(prompt);
 2307            rx
 2308        } else {
 2309            let (tx, rx) = oneshot::channel();
 2310            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2311
 2312            cx.spawn_in(window, async move |workspace, cx| {
 2313                let Ok(result) = abs_path.await else {
 2314                    return Ok(());
 2315                };
 2316
 2317                match result {
 2318                    Ok(result) => {
 2319                        tx.send(result).ok();
 2320                    }
 2321                    Err(err) => {
 2322                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2323                            workspace.show_portal_error(err.to_string(), cx);
 2324                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2325                            let rx = prompt(workspace, lister, window, cx);
 2326                            workspace.on_prompt_for_open_path = Some(prompt);
 2327                            rx
 2328                        })?;
 2329                        if let Ok(path) = rx.await {
 2330                            tx.send(path).ok();
 2331                        }
 2332                    }
 2333                };
 2334                anyhow::Ok(())
 2335            })
 2336            .detach();
 2337
 2338            rx
 2339        }
 2340    }
 2341
 2342    pub fn prompt_for_new_path(
 2343        &mut self,
 2344        lister: DirectoryLister,
 2345        suggested_name: Option<String>,
 2346        window: &mut Window,
 2347        cx: &mut Context<Self>,
 2348    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2349        if self.project.read(cx).is_via_collab()
 2350            || self.project.read(cx).is_via_remote_server()
 2351            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2352        {
 2353            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2354            let rx = prompt(self, lister, window, cx);
 2355            self.on_prompt_for_new_path = Some(prompt);
 2356            return rx;
 2357        }
 2358
 2359        let (tx, rx) = oneshot::channel();
 2360        cx.spawn_in(window, async move |workspace, cx| {
 2361            let abs_path = workspace.update(cx, |workspace, cx| {
 2362                let relative_to = workspace
 2363                    .most_recent_active_path(cx)
 2364                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2365                    .or_else(|| {
 2366                        let project = workspace.project.read(cx);
 2367                        project.visible_worktrees(cx).find_map(|worktree| {
 2368                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2369                        })
 2370                    })
 2371                    .or_else(std::env::home_dir)
 2372                    .unwrap_or_else(|| PathBuf::from(""));
 2373                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2374            })?;
 2375            let abs_path = match abs_path.await? {
 2376                Ok(path) => path,
 2377                Err(err) => {
 2378                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2379                        workspace.show_portal_error(err.to_string(), cx);
 2380
 2381                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2382                        let rx = prompt(workspace, lister, window, cx);
 2383                        workspace.on_prompt_for_new_path = Some(prompt);
 2384                        rx
 2385                    })?;
 2386                    if let Ok(path) = rx.await {
 2387                        tx.send(path).ok();
 2388                    }
 2389                    return anyhow::Ok(());
 2390                }
 2391            };
 2392
 2393            tx.send(abs_path.map(|path| vec![path])).ok();
 2394            anyhow::Ok(())
 2395        })
 2396        .detach();
 2397
 2398        rx
 2399    }
 2400
 2401    pub fn titlebar_item(&self) -> Option<AnyView> {
 2402        self.titlebar_item.clone()
 2403    }
 2404
 2405    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2406    /// When set, git-related operations should use this worktree instead of deriving
 2407    /// the active worktree from the focused file.
 2408    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2409        self.active_worktree_override
 2410    }
 2411
 2412    pub fn set_active_worktree_override(
 2413        &mut self,
 2414        worktree_id: Option<WorktreeId>,
 2415        cx: &mut Context<Self>,
 2416    ) {
 2417        self.active_worktree_override = worktree_id;
 2418        cx.notify();
 2419    }
 2420
 2421    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2422        self.active_worktree_override = None;
 2423        cx.notify();
 2424    }
 2425
 2426    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2427    ///
 2428    /// If the given workspace has a local project, then it will be passed
 2429    /// to the callback. Otherwise, a new empty window will be created.
 2430    pub fn with_local_workspace<T, F>(
 2431        &mut self,
 2432        window: &mut Window,
 2433        cx: &mut Context<Self>,
 2434        callback: F,
 2435    ) -> Task<Result<T>>
 2436    where
 2437        T: 'static,
 2438        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2439    {
 2440        if self.project.read(cx).is_local() {
 2441            Task::ready(Ok(callback(self, window, cx)))
 2442        } else {
 2443            let env = self.project.read(cx).cli_environment(cx);
 2444            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2445            cx.spawn_in(window, async move |_vh, cx| {
 2446                let (workspace, _) = task.await?;
 2447                workspace.update(cx, callback)
 2448            })
 2449        }
 2450    }
 2451
 2452    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2453    ///
 2454    /// If the given workspace has a local project, then it will be passed
 2455    /// to the callback. Otherwise, a new empty window will be created.
 2456    pub fn with_local_or_wsl_workspace<T, F>(
 2457        &mut self,
 2458        window: &mut Window,
 2459        cx: &mut Context<Self>,
 2460        callback: F,
 2461    ) -> Task<Result<T>>
 2462    where
 2463        T: 'static,
 2464        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2465    {
 2466        let project = self.project.read(cx);
 2467        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2468            Task::ready(Ok(callback(self, window, cx)))
 2469        } else {
 2470            let env = self.project.read(cx).cli_environment(cx);
 2471            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2472            cx.spawn_in(window, async move |_vh, cx| {
 2473                let (workspace, _) = task.await?;
 2474                workspace.update(cx, callback)
 2475            })
 2476        }
 2477    }
 2478
 2479    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2480        self.project.read(cx).worktrees(cx)
 2481    }
 2482
 2483    pub fn visible_worktrees<'a>(
 2484        &self,
 2485        cx: &'a App,
 2486    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2487        self.project.read(cx).visible_worktrees(cx)
 2488    }
 2489
 2490    #[cfg(any(test, feature = "test-support"))]
 2491    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2492        let futures = self
 2493            .worktrees(cx)
 2494            .filter_map(|worktree| worktree.read(cx).as_local())
 2495            .map(|worktree| worktree.scan_complete())
 2496            .collect::<Vec<_>>();
 2497        async move {
 2498            for future in futures {
 2499                future.await;
 2500            }
 2501        }
 2502    }
 2503
 2504    pub fn close_global(cx: &mut App) {
 2505        cx.defer(|cx| {
 2506            cx.windows().iter().find(|window| {
 2507                window
 2508                    .update(cx, |_, window, _| {
 2509                        if window.is_window_active() {
 2510                            //This can only get called when the window's project connection has been lost
 2511                            //so we don't need to prompt the user for anything and instead just close the window
 2512                            window.remove_window();
 2513                            true
 2514                        } else {
 2515                            false
 2516                        }
 2517                    })
 2518                    .unwrap_or(false)
 2519            });
 2520        });
 2521    }
 2522
 2523    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2524        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2525        cx.spawn_in(window, async move |_, cx| {
 2526            if prepare.await? {
 2527                cx.update(|window, _cx| window.remove_window())?;
 2528            }
 2529            anyhow::Ok(())
 2530        })
 2531        .detach_and_log_err(cx)
 2532    }
 2533
 2534    pub fn move_focused_panel_to_next_position(
 2535        &mut self,
 2536        _: &MoveFocusedPanelToNextPosition,
 2537        window: &mut Window,
 2538        cx: &mut Context<Self>,
 2539    ) {
 2540        let docks = self.all_docks();
 2541        let active_dock = docks
 2542            .into_iter()
 2543            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2544
 2545        if let Some(dock) = active_dock {
 2546            dock.update(cx, |dock, cx| {
 2547                let active_panel = dock
 2548                    .active_panel()
 2549                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2550
 2551                if let Some(panel) = active_panel {
 2552                    panel.move_to_next_position(window, cx);
 2553                }
 2554            })
 2555        }
 2556    }
 2557
 2558    pub fn prepare_to_close(
 2559        &mut self,
 2560        close_intent: CloseIntent,
 2561        window: &mut Window,
 2562        cx: &mut Context<Self>,
 2563    ) -> Task<Result<bool>> {
 2564        let active_call = self.active_call().cloned();
 2565
 2566        cx.spawn_in(window, async move |this, cx| {
 2567            this.update(cx, |this, _| {
 2568                if close_intent == CloseIntent::CloseWindow {
 2569                    this.removing = true;
 2570                }
 2571            })?;
 2572
 2573            let workspace_count = cx.update(|_window, cx| {
 2574                cx.windows()
 2575                    .iter()
 2576                    .filter(|window| window.downcast::<Workspace>().is_some())
 2577                    .count()
 2578            })?;
 2579
 2580            #[cfg(target_os = "macos")]
 2581            let save_last_workspace = false;
 2582
 2583            // On Linux and Windows, closing the last window should restore the last workspace.
 2584            #[cfg(not(target_os = "macos"))]
 2585            let save_last_workspace = {
 2586                let remaining_workspaces = cx.update(|_window, cx| {
 2587                    cx.windows()
 2588                        .iter()
 2589                        .filter_map(|window| window.downcast::<Workspace>())
 2590                        .filter_map(|workspace| {
 2591                            workspace
 2592                                .update(cx, |workspace, _, _| workspace.removing)
 2593                                .ok()
 2594                        })
 2595                        .filter(|removing| !removing)
 2596                        .count()
 2597                })?;
 2598
 2599                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2600            };
 2601
 2602            if let Some(active_call) = active_call
 2603                && workspace_count == 1
 2604                && active_call.read_with(cx, |call, _| call.room().is_some())
 2605            {
 2606                if close_intent == CloseIntent::CloseWindow {
 2607                    let answer = cx.update(|window, cx| {
 2608                        window.prompt(
 2609                            PromptLevel::Warning,
 2610                            "Do you want to leave the current call?",
 2611                            None,
 2612                            &["Close window and hang up", "Cancel"],
 2613                            cx,
 2614                        )
 2615                    })?;
 2616
 2617                    if answer.await.log_err() == Some(1) {
 2618                        return anyhow::Ok(false);
 2619                    } else {
 2620                        active_call
 2621                            .update(cx, |call, cx| call.hang_up(cx))
 2622                            .await
 2623                            .log_err();
 2624                    }
 2625                }
 2626                if close_intent == CloseIntent::ReplaceWindow {
 2627                    _ = active_call.update(cx, |this, cx| {
 2628                        let workspace = cx
 2629                            .windows()
 2630                            .iter()
 2631                            .filter_map(|window| window.downcast::<Workspace>())
 2632                            .next()
 2633                            .unwrap();
 2634                        let project = workspace.read(cx)?.project.clone();
 2635                        if project.read(cx).is_shared() {
 2636                            this.unshare_project(project, cx)?;
 2637                        }
 2638                        Ok::<_, anyhow::Error>(())
 2639                    })?;
 2640                }
 2641            }
 2642
 2643            let save_result = this
 2644                .update_in(cx, |this, window, cx| {
 2645                    this.save_all_internal(SaveIntent::Close, window, cx)
 2646                })?
 2647                .await;
 2648
 2649            // If we're not quitting, but closing, we remove the workspace from
 2650            // the current session.
 2651            if close_intent != CloseIntent::Quit
 2652                && !save_last_workspace
 2653                && save_result.as_ref().is_ok_and(|&res| res)
 2654            {
 2655                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2656                    .await;
 2657            }
 2658
 2659            save_result
 2660        })
 2661    }
 2662
 2663    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2664        self.save_all_internal(
 2665            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2666            window,
 2667            cx,
 2668        )
 2669        .detach_and_log_err(cx);
 2670    }
 2671
 2672    fn send_keystrokes(
 2673        &mut self,
 2674        action: &SendKeystrokes,
 2675        window: &mut Window,
 2676        cx: &mut Context<Self>,
 2677    ) {
 2678        let keystrokes: Vec<Keystroke> = action
 2679            .0
 2680            .split(' ')
 2681            .flat_map(|k| Keystroke::parse(k).log_err())
 2682            .map(|k| {
 2683                cx.keyboard_mapper()
 2684                    .map_key_equivalent(k, true)
 2685                    .inner()
 2686                    .clone()
 2687            })
 2688            .collect();
 2689        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2690    }
 2691
 2692    pub fn send_keystrokes_impl(
 2693        &mut self,
 2694        keystrokes: Vec<Keystroke>,
 2695        window: &mut Window,
 2696        cx: &mut Context<Self>,
 2697    ) -> Shared<Task<()>> {
 2698        let mut state = self.dispatching_keystrokes.borrow_mut();
 2699        if !state.dispatched.insert(keystrokes.clone()) {
 2700            cx.propagate();
 2701            return state.task.clone().unwrap();
 2702        }
 2703
 2704        state.queue.extend(keystrokes);
 2705
 2706        let keystrokes = self.dispatching_keystrokes.clone();
 2707        if state.task.is_none() {
 2708            state.task = Some(
 2709                window
 2710                    .spawn(cx, async move |cx| {
 2711                        // limit to 100 keystrokes to avoid infinite recursion.
 2712                        for _ in 0..100 {
 2713                            let mut state = keystrokes.borrow_mut();
 2714                            let Some(keystroke) = state.queue.pop_front() else {
 2715                                state.dispatched.clear();
 2716                                state.task.take();
 2717                                return;
 2718                            };
 2719                            drop(state);
 2720                            cx.update(|window, cx| {
 2721                                let focused = window.focused(cx);
 2722                                window.dispatch_keystroke(keystroke.clone(), cx);
 2723                                if window.focused(cx) != focused {
 2724                                    // dispatch_keystroke may cause the focus to change.
 2725                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2726                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2727                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2728                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2729                                    // )
 2730                                    window.draw(cx).clear();
 2731                                }
 2732                            })
 2733                            .ok();
 2734                        }
 2735
 2736                        *keystrokes.borrow_mut() = Default::default();
 2737                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2738                    })
 2739                    .shared(),
 2740            );
 2741        }
 2742        state.task.clone().unwrap()
 2743    }
 2744
 2745    fn save_all_internal(
 2746        &mut self,
 2747        mut save_intent: SaveIntent,
 2748        window: &mut Window,
 2749        cx: &mut Context<Self>,
 2750    ) -> Task<Result<bool>> {
 2751        if self.project.read(cx).is_disconnected(cx) {
 2752            return Task::ready(Ok(true));
 2753        }
 2754        let dirty_items = self
 2755            .panes
 2756            .iter()
 2757            .flat_map(|pane| {
 2758                pane.read(cx).items().filter_map(|item| {
 2759                    if item.is_dirty(cx) {
 2760                        item.tab_content_text(0, cx);
 2761                        Some((pane.downgrade(), item.boxed_clone()))
 2762                    } else {
 2763                        None
 2764                    }
 2765                })
 2766            })
 2767            .collect::<Vec<_>>();
 2768
 2769        let project = self.project.clone();
 2770        cx.spawn_in(window, async move |workspace, cx| {
 2771            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2772                let (serialize_tasks, remaining_dirty_items) =
 2773                    workspace.update_in(cx, |workspace, window, cx| {
 2774                        let mut remaining_dirty_items = Vec::new();
 2775                        let mut serialize_tasks = Vec::new();
 2776                        for (pane, item) in dirty_items {
 2777                            if let Some(task) = item
 2778                                .to_serializable_item_handle(cx)
 2779                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2780                            {
 2781                                serialize_tasks.push(task);
 2782                            } else {
 2783                                remaining_dirty_items.push((pane, item));
 2784                            }
 2785                        }
 2786                        (serialize_tasks, remaining_dirty_items)
 2787                    })?;
 2788
 2789                futures::future::try_join_all(serialize_tasks).await?;
 2790
 2791                if remaining_dirty_items.len() > 1 {
 2792                    let answer = workspace.update_in(cx, |_, window, cx| {
 2793                        let detail = Pane::file_names_for_prompt(
 2794                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2795                            cx,
 2796                        );
 2797                        window.prompt(
 2798                            PromptLevel::Warning,
 2799                            "Do you want to save all changes in the following files?",
 2800                            Some(&detail),
 2801                            &["Save all", "Discard all", "Cancel"],
 2802                            cx,
 2803                        )
 2804                    })?;
 2805                    match answer.await.log_err() {
 2806                        Some(0) => save_intent = SaveIntent::SaveAll,
 2807                        Some(1) => save_intent = SaveIntent::Skip,
 2808                        Some(2) => return Ok(false),
 2809                        _ => {}
 2810                    }
 2811                }
 2812
 2813                remaining_dirty_items
 2814            } else {
 2815                dirty_items
 2816            };
 2817
 2818            for (pane, item) in dirty_items {
 2819                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2820                    (
 2821                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2822                        item.project_entry_ids(cx),
 2823                    )
 2824                })?;
 2825                if (singleton || !project_entry_ids.is_empty())
 2826                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2827                {
 2828                    return Ok(false);
 2829                }
 2830            }
 2831            Ok(true)
 2832        })
 2833    }
 2834
 2835    pub fn open_workspace_for_paths(
 2836        &mut self,
 2837        replace_current_window: bool,
 2838        paths: Vec<PathBuf>,
 2839        window: &mut Window,
 2840        cx: &mut Context<Self>,
 2841    ) -> Task<Result<()>> {
 2842        let window_handle = window.window_handle().downcast::<Self>();
 2843        let is_remote = self.project.read(cx).is_via_collab();
 2844        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2845        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2846
 2847        let window_to_replace = if replace_current_window {
 2848            window_handle
 2849        } else if is_remote || has_worktree || has_dirty_items {
 2850            None
 2851        } else {
 2852            window_handle
 2853        };
 2854        let app_state = self.app_state.clone();
 2855
 2856        cx.spawn(async move |_, cx| {
 2857            cx.update(|cx| {
 2858                open_paths(
 2859                    &paths,
 2860                    app_state,
 2861                    OpenOptions {
 2862                        replace_window: window_to_replace,
 2863                        ..Default::default()
 2864                    },
 2865                    cx,
 2866                )
 2867            })
 2868            .await?;
 2869            Ok(())
 2870        })
 2871    }
 2872
 2873    #[allow(clippy::type_complexity)]
 2874    pub fn open_paths(
 2875        &mut self,
 2876        mut abs_paths: Vec<PathBuf>,
 2877        options: OpenOptions,
 2878        pane: Option<WeakEntity<Pane>>,
 2879        window: &mut Window,
 2880        cx: &mut Context<Self>,
 2881    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2882        let fs = self.app_state.fs.clone();
 2883
 2884        let caller_ordered_abs_paths = abs_paths.clone();
 2885
 2886        // Sort the paths to ensure we add worktrees for parents before their children.
 2887        abs_paths.sort_unstable();
 2888        cx.spawn_in(window, async move |this, cx| {
 2889            let mut tasks = Vec::with_capacity(abs_paths.len());
 2890
 2891            for abs_path in &abs_paths {
 2892                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2893                    OpenVisible::All => Some(true),
 2894                    OpenVisible::None => Some(false),
 2895                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2896                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2897                        Some(None) => Some(true),
 2898                        None => None,
 2899                    },
 2900                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2901                        Some(Some(metadata)) => Some(metadata.is_dir),
 2902                        Some(None) => Some(false),
 2903                        None => None,
 2904                    },
 2905                };
 2906                let project_path = match visible {
 2907                    Some(visible) => match this
 2908                        .update(cx, |this, cx| {
 2909                            Workspace::project_path_for_path(
 2910                                this.project.clone(),
 2911                                abs_path,
 2912                                visible,
 2913                                cx,
 2914                            )
 2915                        })
 2916                        .log_err()
 2917                    {
 2918                        Some(project_path) => project_path.await.log_err(),
 2919                        None => None,
 2920                    },
 2921                    None => None,
 2922                };
 2923
 2924                let this = this.clone();
 2925                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2926                let fs = fs.clone();
 2927                let pane = pane.clone();
 2928                let task = cx.spawn(async move |cx| {
 2929                    let (_worktree, project_path) = project_path?;
 2930                    if fs.is_dir(&abs_path).await {
 2931                        // Opening a directory should not race to update the active entry.
 2932                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 2933                        None
 2934                    } else {
 2935                        Some(
 2936                            this.update_in(cx, |this, window, cx| {
 2937                                this.open_path(
 2938                                    project_path,
 2939                                    pane,
 2940                                    options.focus.unwrap_or(true),
 2941                                    window,
 2942                                    cx,
 2943                                )
 2944                            })
 2945                            .ok()?
 2946                            .await,
 2947                        )
 2948                    }
 2949                });
 2950                tasks.push(task);
 2951            }
 2952
 2953            let results = futures::future::join_all(tasks).await;
 2954
 2955            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 2956            let mut winner: Option<(PathBuf, bool)> = None;
 2957            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 2958                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 2959                    if !metadata.is_dir {
 2960                        winner = Some((abs_path, false));
 2961                        break;
 2962                    }
 2963                    if winner.is_none() {
 2964                        winner = Some((abs_path, true));
 2965                    }
 2966                } else if winner.is_none() {
 2967                    winner = Some((abs_path, false));
 2968                }
 2969            }
 2970
 2971            // Compute the winner entry id on the foreground thread and emit once, after all
 2972            // paths finish opening. This avoids races between concurrently-opening paths
 2973            // (directories in particular) and makes the resulting project panel selection
 2974            // deterministic.
 2975            if let Some((winner_abs_path, winner_is_dir)) = winner {
 2976                'emit_winner: {
 2977                    let winner_abs_path: Arc<Path> =
 2978                        SanitizedPath::new(&winner_abs_path).as_path().into();
 2979
 2980                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2981                        OpenVisible::All => true,
 2982                        OpenVisible::None => false,
 2983                        OpenVisible::OnlyFiles => !winner_is_dir,
 2984                        OpenVisible::OnlyDirectories => winner_is_dir,
 2985                    };
 2986
 2987                    let Some(worktree_task) = this
 2988                        .update(cx, |workspace, cx| {
 2989                            workspace.project.update(cx, |project, cx| {
 2990                                project.find_or_create_worktree(
 2991                                    winner_abs_path.as_ref(),
 2992                                    visible,
 2993                                    cx,
 2994                                )
 2995                            })
 2996                        })
 2997                        .ok()
 2998                    else {
 2999                        break 'emit_winner;
 3000                    };
 3001
 3002                    let Ok((worktree, _)) = worktree_task.await else {
 3003                        break 'emit_winner;
 3004                    };
 3005
 3006                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3007                        let worktree = worktree.read(cx);
 3008                        let worktree_abs_path = worktree.abs_path();
 3009                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3010                            worktree.root_entry()
 3011                        } else {
 3012                            winner_abs_path
 3013                                .strip_prefix(worktree_abs_path.as_ref())
 3014                                .ok()
 3015                                .and_then(|relative_path| {
 3016                                    let relative_path =
 3017                                        RelPath::new(relative_path, PathStyle::local())
 3018                                            .log_err()?;
 3019                                    worktree.entry_for_path(&relative_path)
 3020                                })
 3021                        }?;
 3022                        Some(entry.id)
 3023                    }) else {
 3024                        break 'emit_winner;
 3025                    };
 3026
 3027                    this.update(cx, |workspace, cx| {
 3028                        workspace.project.update(cx, |_, cx| {
 3029                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3030                        });
 3031                    })
 3032                    .ok();
 3033                }
 3034            }
 3035
 3036            results
 3037        })
 3038    }
 3039
 3040    pub fn open_resolved_path(
 3041        &mut self,
 3042        path: ResolvedPath,
 3043        window: &mut Window,
 3044        cx: &mut Context<Self>,
 3045    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3046        match path {
 3047            ResolvedPath::ProjectPath { project_path, .. } => {
 3048                self.open_path(project_path, None, true, window, cx)
 3049            }
 3050            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3051                PathBuf::from(path),
 3052                OpenOptions {
 3053                    visible: Some(OpenVisible::None),
 3054                    ..Default::default()
 3055                },
 3056                window,
 3057                cx,
 3058            ),
 3059        }
 3060    }
 3061
 3062    pub fn absolute_path_of_worktree(
 3063        &self,
 3064        worktree_id: WorktreeId,
 3065        cx: &mut Context<Self>,
 3066    ) -> Option<PathBuf> {
 3067        self.project
 3068            .read(cx)
 3069            .worktree_for_id(worktree_id, cx)
 3070            // TODO: use `abs_path` or `root_dir`
 3071            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3072    }
 3073
 3074    fn add_folder_to_project(
 3075        &mut self,
 3076        _: &AddFolderToProject,
 3077        window: &mut Window,
 3078        cx: &mut Context<Self>,
 3079    ) {
 3080        let project = self.project.read(cx);
 3081        if project.is_via_collab() {
 3082            self.show_error(
 3083                &anyhow!("You cannot add folders to someone else's project"),
 3084                cx,
 3085            );
 3086            return;
 3087        }
 3088        let paths = self.prompt_for_open_path(
 3089            PathPromptOptions {
 3090                files: false,
 3091                directories: true,
 3092                multiple: true,
 3093                prompt: None,
 3094            },
 3095            DirectoryLister::Project(self.project.clone()),
 3096            window,
 3097            cx,
 3098        );
 3099        cx.spawn_in(window, async move |this, cx| {
 3100            if let Some(paths) = paths.await.log_err().flatten() {
 3101                let results = this
 3102                    .update_in(cx, |this, window, cx| {
 3103                        this.open_paths(
 3104                            paths,
 3105                            OpenOptions {
 3106                                visible: Some(OpenVisible::All),
 3107                                ..Default::default()
 3108                            },
 3109                            None,
 3110                            window,
 3111                            cx,
 3112                        )
 3113                    })?
 3114                    .await;
 3115                for result in results.into_iter().flatten() {
 3116                    result.log_err();
 3117                }
 3118            }
 3119            anyhow::Ok(())
 3120        })
 3121        .detach_and_log_err(cx);
 3122    }
 3123
 3124    pub fn project_path_for_path(
 3125        project: Entity<Project>,
 3126        abs_path: &Path,
 3127        visible: bool,
 3128        cx: &mut App,
 3129    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3130        let entry = project.update(cx, |project, cx| {
 3131            project.find_or_create_worktree(abs_path, visible, cx)
 3132        });
 3133        cx.spawn(async move |cx| {
 3134            let (worktree, path) = entry.await?;
 3135            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3136            Ok((worktree, ProjectPath { worktree_id, path }))
 3137        })
 3138    }
 3139
 3140    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3141        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3142    }
 3143
 3144    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3145        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3146    }
 3147
 3148    pub fn items_of_type<'a, T: Item>(
 3149        &'a self,
 3150        cx: &'a App,
 3151    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3152        self.panes
 3153            .iter()
 3154            .flat_map(|pane| pane.read(cx).items_of_type())
 3155    }
 3156
 3157    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3158        self.active_pane().read(cx).active_item()
 3159    }
 3160
 3161    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3162        let item = self.active_item(cx)?;
 3163        item.to_any_view().downcast::<I>().ok()
 3164    }
 3165
 3166    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3167        self.active_item(cx).and_then(|item| item.project_path(cx))
 3168    }
 3169
 3170    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3171        self.recent_navigation_history_iter(cx)
 3172            .filter_map(|(path, abs_path)| {
 3173                let worktree = self
 3174                    .project
 3175                    .read(cx)
 3176                    .worktree_for_id(path.worktree_id, cx)?;
 3177                if worktree.read(cx).is_visible() {
 3178                    abs_path
 3179                } else {
 3180                    None
 3181                }
 3182            })
 3183            .next()
 3184    }
 3185
 3186    pub fn save_active_item(
 3187        &mut self,
 3188        save_intent: SaveIntent,
 3189        window: &mut Window,
 3190        cx: &mut App,
 3191    ) -> Task<Result<()>> {
 3192        let project = self.project.clone();
 3193        let pane = self.active_pane();
 3194        let item = pane.read(cx).active_item();
 3195        let pane = pane.downgrade();
 3196
 3197        window.spawn(cx, async move |cx| {
 3198            if let Some(item) = item {
 3199                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3200                    .await
 3201                    .map(|_| ())
 3202            } else {
 3203                Ok(())
 3204            }
 3205        })
 3206    }
 3207
 3208    pub fn close_inactive_items_and_panes(
 3209        &mut self,
 3210        action: &CloseInactiveTabsAndPanes,
 3211        window: &mut Window,
 3212        cx: &mut Context<Self>,
 3213    ) {
 3214        if let Some(task) = self.close_all_internal(
 3215            true,
 3216            action.save_intent.unwrap_or(SaveIntent::Close),
 3217            window,
 3218            cx,
 3219        ) {
 3220            task.detach_and_log_err(cx)
 3221        }
 3222    }
 3223
 3224    pub fn close_all_items_and_panes(
 3225        &mut self,
 3226        action: &CloseAllItemsAndPanes,
 3227        window: &mut Window,
 3228        cx: &mut Context<Self>,
 3229    ) {
 3230        if let Some(task) = self.close_all_internal(
 3231            false,
 3232            action.save_intent.unwrap_or(SaveIntent::Close),
 3233            window,
 3234            cx,
 3235        ) {
 3236            task.detach_and_log_err(cx)
 3237        }
 3238    }
 3239
 3240    fn close_all_internal(
 3241        &mut self,
 3242        retain_active_pane: bool,
 3243        save_intent: SaveIntent,
 3244        window: &mut Window,
 3245        cx: &mut Context<Self>,
 3246    ) -> Option<Task<Result<()>>> {
 3247        let current_pane = self.active_pane();
 3248
 3249        let mut tasks = Vec::new();
 3250
 3251        if retain_active_pane {
 3252            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3253                pane.close_other_items(
 3254                    &CloseOtherItems {
 3255                        save_intent: None,
 3256                        close_pinned: false,
 3257                    },
 3258                    None,
 3259                    window,
 3260                    cx,
 3261                )
 3262            });
 3263
 3264            tasks.push(current_pane_close);
 3265        }
 3266
 3267        for pane in self.panes() {
 3268            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3269                continue;
 3270            }
 3271
 3272            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3273                pane.close_all_items(
 3274                    &CloseAllItems {
 3275                        save_intent: Some(save_intent),
 3276                        close_pinned: false,
 3277                    },
 3278                    window,
 3279                    cx,
 3280                )
 3281            });
 3282
 3283            tasks.push(close_pane_items)
 3284        }
 3285
 3286        if tasks.is_empty() {
 3287            None
 3288        } else {
 3289            Some(cx.spawn_in(window, async move |_, _| {
 3290                for task in tasks {
 3291                    task.await?
 3292                }
 3293                Ok(())
 3294            }))
 3295        }
 3296    }
 3297
 3298    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3299        self.dock_at_position(position).read(cx).is_open()
 3300    }
 3301
 3302    pub fn toggle_dock(
 3303        &mut self,
 3304        dock_side: DockPosition,
 3305        window: &mut Window,
 3306        cx: &mut Context<Self>,
 3307    ) {
 3308        let mut focus_center = false;
 3309        let mut reveal_dock = false;
 3310
 3311        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3312        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3313
 3314        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3315            telemetry::event!(
 3316                "Panel Button Clicked",
 3317                name = panel.persistent_name(),
 3318                toggle_state = !was_visible
 3319            );
 3320        }
 3321        if was_visible {
 3322            self.save_open_dock_positions(cx);
 3323        }
 3324
 3325        let dock = self.dock_at_position(dock_side);
 3326        dock.update(cx, |dock, cx| {
 3327            dock.set_open(!was_visible, window, cx);
 3328
 3329            if dock.active_panel().is_none() {
 3330                let Some(panel_ix) = dock
 3331                    .first_enabled_panel_idx(cx)
 3332                    .log_with_level(log::Level::Info)
 3333                else {
 3334                    return;
 3335                };
 3336                dock.activate_panel(panel_ix, window, cx);
 3337            }
 3338
 3339            if let Some(active_panel) = dock.active_panel() {
 3340                if was_visible {
 3341                    if active_panel
 3342                        .panel_focus_handle(cx)
 3343                        .contains_focused(window, cx)
 3344                    {
 3345                        focus_center = true;
 3346                    }
 3347                } else {
 3348                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3349                    window.focus(focus_handle, cx);
 3350                    reveal_dock = true;
 3351                }
 3352            }
 3353        });
 3354
 3355        if reveal_dock {
 3356            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3357        }
 3358
 3359        if focus_center {
 3360            self.active_pane
 3361                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3362        }
 3363
 3364        cx.notify();
 3365        self.serialize_workspace(window, cx);
 3366    }
 3367
 3368    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3369        self.all_docks().into_iter().find(|&dock| {
 3370            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3371        })
 3372    }
 3373
 3374    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3375        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3376            self.save_open_dock_positions(cx);
 3377            dock.update(cx, |dock, cx| {
 3378                dock.set_open(false, window, cx);
 3379            });
 3380            return true;
 3381        }
 3382        false
 3383    }
 3384
 3385    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3386        self.save_open_dock_positions(cx);
 3387        for dock in self.all_docks() {
 3388            dock.update(cx, |dock, cx| {
 3389                dock.set_open(false, window, cx);
 3390            });
 3391        }
 3392
 3393        cx.focus_self(window);
 3394        cx.notify();
 3395        self.serialize_workspace(window, cx);
 3396    }
 3397
 3398    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3399        self.all_docks()
 3400            .into_iter()
 3401            .filter_map(|dock| {
 3402                let dock_ref = dock.read(cx);
 3403                if dock_ref.is_open() {
 3404                    Some(dock_ref.position())
 3405                } else {
 3406                    None
 3407                }
 3408            })
 3409            .collect()
 3410    }
 3411
 3412    /// Saves the positions of currently open docks.
 3413    ///
 3414    /// Updates `last_open_dock_positions` with positions of all currently open
 3415    /// docks, to later be restored by the 'Toggle All Docks' action.
 3416    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3417        let open_dock_positions = self.get_open_dock_positions(cx);
 3418        if !open_dock_positions.is_empty() {
 3419            self.last_open_dock_positions = open_dock_positions;
 3420        }
 3421    }
 3422
 3423    /// Toggles all docks between open and closed states.
 3424    ///
 3425    /// If any docks are open, closes all and remembers their positions. If all
 3426    /// docks are closed, restores the last remembered dock configuration.
 3427    fn toggle_all_docks(
 3428        &mut self,
 3429        _: &ToggleAllDocks,
 3430        window: &mut Window,
 3431        cx: &mut Context<Self>,
 3432    ) {
 3433        let open_dock_positions = self.get_open_dock_positions(cx);
 3434
 3435        if !open_dock_positions.is_empty() {
 3436            self.close_all_docks(window, cx);
 3437        } else if !self.last_open_dock_positions.is_empty() {
 3438            self.restore_last_open_docks(window, cx);
 3439        }
 3440    }
 3441
 3442    /// Reopens docks from the most recently remembered configuration.
 3443    ///
 3444    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3445    /// and clears the stored positions.
 3446    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3447        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3448
 3449        for position in positions_to_open {
 3450            let dock = self.dock_at_position(position);
 3451            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3452        }
 3453
 3454        cx.focus_self(window);
 3455        cx.notify();
 3456        self.serialize_workspace(window, cx);
 3457    }
 3458
 3459    /// Transfer focus to the panel of the given type.
 3460    pub fn focus_panel<T: Panel>(
 3461        &mut self,
 3462        window: &mut Window,
 3463        cx: &mut Context<Self>,
 3464    ) -> Option<Entity<T>> {
 3465        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3466        panel.to_any().downcast().ok()
 3467    }
 3468
 3469    /// Focus the panel of the given type if it isn't already focused. If it is
 3470    /// already focused, then transfer focus back to the workspace center.
 3471    pub fn toggle_panel_focus<T: Panel>(
 3472        &mut self,
 3473        window: &mut Window,
 3474        cx: &mut Context<Self>,
 3475    ) -> bool {
 3476        let mut did_focus_panel = false;
 3477        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3478            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3479            did_focus_panel
 3480        });
 3481
 3482        telemetry::event!(
 3483            "Panel Button Clicked",
 3484            name = T::persistent_name(),
 3485            toggle_state = did_focus_panel
 3486        );
 3487
 3488        did_focus_panel
 3489    }
 3490
 3491    pub fn activate_panel_for_proto_id(
 3492        &mut self,
 3493        panel_id: PanelId,
 3494        window: &mut Window,
 3495        cx: &mut Context<Self>,
 3496    ) -> Option<Arc<dyn PanelHandle>> {
 3497        let mut panel = None;
 3498        for dock in self.all_docks() {
 3499            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3500                panel = dock.update(cx, |dock, cx| {
 3501                    dock.activate_panel(panel_index, window, cx);
 3502                    dock.set_open(true, window, cx);
 3503                    dock.active_panel().cloned()
 3504                });
 3505                break;
 3506            }
 3507        }
 3508
 3509        if panel.is_some() {
 3510            cx.notify();
 3511            self.serialize_workspace(window, cx);
 3512        }
 3513
 3514        panel
 3515    }
 3516
 3517    /// Focus or unfocus the given panel type, depending on the given callback.
 3518    fn focus_or_unfocus_panel<T: Panel>(
 3519        &mut self,
 3520        window: &mut Window,
 3521        cx: &mut Context<Self>,
 3522        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3523    ) -> Option<Arc<dyn PanelHandle>> {
 3524        let mut result_panel = None;
 3525        let mut serialize = false;
 3526        for dock in self.all_docks() {
 3527            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3528                let mut focus_center = false;
 3529                let panel = dock.update(cx, |dock, cx| {
 3530                    dock.activate_panel(panel_index, window, cx);
 3531
 3532                    let panel = dock.active_panel().cloned();
 3533                    if let Some(panel) = panel.as_ref() {
 3534                        if should_focus(&**panel, window, cx) {
 3535                            dock.set_open(true, window, cx);
 3536                            panel.panel_focus_handle(cx).focus(window, cx);
 3537                        } else {
 3538                            focus_center = true;
 3539                        }
 3540                    }
 3541                    panel
 3542                });
 3543
 3544                if focus_center {
 3545                    self.active_pane
 3546                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3547                }
 3548
 3549                result_panel = panel;
 3550                serialize = true;
 3551                break;
 3552            }
 3553        }
 3554
 3555        if serialize {
 3556            self.serialize_workspace(window, cx);
 3557        }
 3558
 3559        cx.notify();
 3560        result_panel
 3561    }
 3562
 3563    /// Open the panel of the given type
 3564    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3565        for dock in self.all_docks() {
 3566            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3567                dock.update(cx, |dock, cx| {
 3568                    dock.activate_panel(panel_index, window, cx);
 3569                    dock.set_open(true, window, cx);
 3570                });
 3571            }
 3572        }
 3573    }
 3574
 3575    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3576        for dock in self.all_docks().iter() {
 3577            dock.update(cx, |dock, cx| {
 3578                if dock.panel::<T>().is_some() {
 3579                    dock.set_open(false, window, cx)
 3580                }
 3581            })
 3582        }
 3583    }
 3584
 3585    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3586        self.all_docks()
 3587            .iter()
 3588            .find_map(|dock| dock.read(cx).panel::<T>())
 3589    }
 3590
 3591    fn dismiss_zoomed_items_to_reveal(
 3592        &mut self,
 3593        dock_to_reveal: Option<DockPosition>,
 3594        window: &mut Window,
 3595        cx: &mut Context<Self>,
 3596    ) {
 3597        // If a center pane is zoomed, unzoom it.
 3598        for pane in &self.panes {
 3599            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3600                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3601            }
 3602        }
 3603
 3604        // If another dock is zoomed, hide it.
 3605        let mut focus_center = false;
 3606        for dock in self.all_docks() {
 3607            dock.update(cx, |dock, cx| {
 3608                if Some(dock.position()) != dock_to_reveal
 3609                    && let Some(panel) = dock.active_panel()
 3610                    && panel.is_zoomed(window, cx)
 3611                {
 3612                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3613                    dock.set_open(false, window, cx);
 3614                }
 3615            });
 3616        }
 3617
 3618        if focus_center {
 3619            self.active_pane
 3620                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3621        }
 3622
 3623        if self.zoomed_position != dock_to_reveal {
 3624            self.zoomed = None;
 3625            self.zoomed_position = None;
 3626            cx.emit(Event::ZoomChanged);
 3627        }
 3628
 3629        cx.notify();
 3630    }
 3631
 3632    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3633        let pane = cx.new(|cx| {
 3634            let mut pane = Pane::new(
 3635                self.weak_handle(),
 3636                self.project.clone(),
 3637                self.pane_history_timestamp.clone(),
 3638                None,
 3639                NewFile.boxed_clone(),
 3640                true,
 3641                window,
 3642                cx,
 3643            );
 3644            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3645            pane
 3646        });
 3647        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3648            .detach();
 3649        self.panes.push(pane.clone());
 3650
 3651        window.focus(&pane.focus_handle(cx), cx);
 3652
 3653        cx.emit(Event::PaneAdded(pane.clone()));
 3654        pane
 3655    }
 3656
 3657    pub fn add_item_to_center(
 3658        &mut self,
 3659        item: Box<dyn ItemHandle>,
 3660        window: &mut Window,
 3661        cx: &mut Context<Self>,
 3662    ) -> bool {
 3663        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3664            if let Some(center_pane) = center_pane.upgrade() {
 3665                center_pane.update(cx, |pane, cx| {
 3666                    pane.add_item(item, true, true, None, window, cx)
 3667                });
 3668                true
 3669            } else {
 3670                false
 3671            }
 3672        } else {
 3673            false
 3674        }
 3675    }
 3676
 3677    pub fn add_item_to_active_pane(
 3678        &mut self,
 3679        item: Box<dyn ItemHandle>,
 3680        destination_index: Option<usize>,
 3681        focus_item: bool,
 3682        window: &mut Window,
 3683        cx: &mut App,
 3684    ) {
 3685        self.add_item(
 3686            self.active_pane.clone(),
 3687            item,
 3688            destination_index,
 3689            false,
 3690            focus_item,
 3691            window,
 3692            cx,
 3693        )
 3694    }
 3695
 3696    pub fn add_item(
 3697        &mut self,
 3698        pane: Entity<Pane>,
 3699        item: Box<dyn ItemHandle>,
 3700        destination_index: Option<usize>,
 3701        activate_pane: bool,
 3702        focus_item: bool,
 3703        window: &mut Window,
 3704        cx: &mut App,
 3705    ) {
 3706        pane.update(cx, |pane, cx| {
 3707            pane.add_item(
 3708                item,
 3709                activate_pane,
 3710                focus_item,
 3711                destination_index,
 3712                window,
 3713                cx,
 3714            )
 3715        });
 3716    }
 3717
 3718    pub fn split_item(
 3719        &mut self,
 3720        split_direction: SplitDirection,
 3721        item: Box<dyn ItemHandle>,
 3722        window: &mut Window,
 3723        cx: &mut Context<Self>,
 3724    ) {
 3725        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3726        self.add_item(new_pane, item, None, true, true, window, cx);
 3727    }
 3728
 3729    pub fn open_abs_path(
 3730        &mut self,
 3731        abs_path: PathBuf,
 3732        options: OpenOptions,
 3733        window: &mut Window,
 3734        cx: &mut Context<Self>,
 3735    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3736        cx.spawn_in(window, async move |workspace, cx| {
 3737            let open_paths_task_result = workspace
 3738                .update_in(cx, |workspace, window, cx| {
 3739                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3740                })
 3741                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3742                .await;
 3743            anyhow::ensure!(
 3744                open_paths_task_result.len() == 1,
 3745                "open abs path {abs_path:?} task returned incorrect number of results"
 3746            );
 3747            match open_paths_task_result
 3748                .into_iter()
 3749                .next()
 3750                .expect("ensured single task result")
 3751            {
 3752                Some(open_result) => {
 3753                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3754                }
 3755                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3756            }
 3757        })
 3758    }
 3759
 3760    pub fn split_abs_path(
 3761        &mut self,
 3762        abs_path: PathBuf,
 3763        visible: bool,
 3764        window: &mut Window,
 3765        cx: &mut Context<Self>,
 3766    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3767        let project_path_task =
 3768            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3769        cx.spawn_in(window, async move |this, cx| {
 3770            let (_, path) = project_path_task.await?;
 3771            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3772                .await
 3773        })
 3774    }
 3775
 3776    pub fn open_path(
 3777        &mut self,
 3778        path: impl Into<ProjectPath>,
 3779        pane: Option<WeakEntity<Pane>>,
 3780        focus_item: bool,
 3781        window: &mut Window,
 3782        cx: &mut App,
 3783    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3784        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3785    }
 3786
 3787    pub fn open_path_preview(
 3788        &mut self,
 3789        path: impl Into<ProjectPath>,
 3790        pane: Option<WeakEntity<Pane>>,
 3791        focus_item: bool,
 3792        allow_preview: bool,
 3793        activate: bool,
 3794        window: &mut Window,
 3795        cx: &mut App,
 3796    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3797        let pane = pane.unwrap_or_else(|| {
 3798            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3799                self.panes
 3800                    .first()
 3801                    .expect("There must be an active pane")
 3802                    .downgrade()
 3803            })
 3804        });
 3805
 3806        let project_path = path.into();
 3807        let task = self.load_path(project_path.clone(), window, cx);
 3808        window.spawn(cx, async move |cx| {
 3809            let (project_entry_id, build_item) = task.await?;
 3810
 3811            pane.update_in(cx, |pane, window, cx| {
 3812                pane.open_item(
 3813                    project_entry_id,
 3814                    project_path,
 3815                    focus_item,
 3816                    allow_preview,
 3817                    activate,
 3818                    None,
 3819                    window,
 3820                    cx,
 3821                    build_item,
 3822                )
 3823            })
 3824        })
 3825    }
 3826
 3827    pub fn split_path(
 3828        &mut self,
 3829        path: impl Into<ProjectPath>,
 3830        window: &mut Window,
 3831        cx: &mut Context<Self>,
 3832    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3833        self.split_path_preview(path, false, None, window, cx)
 3834    }
 3835
 3836    pub fn split_path_preview(
 3837        &mut self,
 3838        path: impl Into<ProjectPath>,
 3839        allow_preview: bool,
 3840        split_direction: Option<SplitDirection>,
 3841        window: &mut Window,
 3842        cx: &mut Context<Self>,
 3843    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3844        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3845            self.panes
 3846                .first()
 3847                .expect("There must be an active pane")
 3848                .downgrade()
 3849        });
 3850
 3851        if let Member::Pane(center_pane) = &self.center.root
 3852            && center_pane.read(cx).items_len() == 0
 3853        {
 3854            return self.open_path(path, Some(pane), true, window, cx);
 3855        }
 3856
 3857        let project_path = path.into();
 3858        let task = self.load_path(project_path.clone(), window, cx);
 3859        cx.spawn_in(window, async move |this, cx| {
 3860            let (project_entry_id, build_item) = task.await?;
 3861            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3862                let pane = pane.upgrade()?;
 3863                let new_pane = this.split_pane(
 3864                    pane,
 3865                    split_direction.unwrap_or(SplitDirection::Right),
 3866                    window,
 3867                    cx,
 3868                );
 3869                new_pane.update(cx, |new_pane, cx| {
 3870                    Some(new_pane.open_item(
 3871                        project_entry_id,
 3872                        project_path,
 3873                        true,
 3874                        allow_preview,
 3875                        true,
 3876                        None,
 3877                        window,
 3878                        cx,
 3879                        build_item,
 3880                    ))
 3881                })
 3882            })
 3883            .map(|option| option.context("pane was dropped"))?
 3884        })
 3885    }
 3886
 3887    fn load_path(
 3888        &mut self,
 3889        path: ProjectPath,
 3890        window: &mut Window,
 3891        cx: &mut App,
 3892    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3893        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3894        registry.open_path(self.project(), &path, window, cx)
 3895    }
 3896
 3897    pub fn find_project_item<T>(
 3898        &self,
 3899        pane: &Entity<Pane>,
 3900        project_item: &Entity<T::Item>,
 3901        cx: &App,
 3902    ) -> Option<Entity<T>>
 3903    where
 3904        T: ProjectItem,
 3905    {
 3906        use project::ProjectItem as _;
 3907        let project_item = project_item.read(cx);
 3908        let entry_id = project_item.entry_id(cx);
 3909        let project_path = project_item.project_path(cx);
 3910
 3911        let mut item = None;
 3912        if let Some(entry_id) = entry_id {
 3913            item = pane.read(cx).item_for_entry(entry_id, cx);
 3914        }
 3915        if item.is_none()
 3916            && let Some(project_path) = project_path
 3917        {
 3918            item = pane.read(cx).item_for_path(project_path, cx);
 3919        }
 3920
 3921        item.and_then(|item| item.downcast::<T>())
 3922    }
 3923
 3924    pub fn is_project_item_open<T>(
 3925        &self,
 3926        pane: &Entity<Pane>,
 3927        project_item: &Entity<T::Item>,
 3928        cx: &App,
 3929    ) -> bool
 3930    where
 3931        T: ProjectItem,
 3932    {
 3933        self.find_project_item::<T>(pane, project_item, cx)
 3934            .is_some()
 3935    }
 3936
 3937    pub fn open_project_item<T>(
 3938        &mut self,
 3939        pane: Entity<Pane>,
 3940        project_item: Entity<T::Item>,
 3941        activate_pane: bool,
 3942        focus_item: bool,
 3943        keep_old_preview: bool,
 3944        allow_new_preview: bool,
 3945        window: &mut Window,
 3946        cx: &mut Context<Self>,
 3947    ) -> Entity<T>
 3948    where
 3949        T: ProjectItem,
 3950    {
 3951        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3952
 3953        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3954            if !keep_old_preview
 3955                && let Some(old_id) = old_item_id
 3956                && old_id != item.item_id()
 3957            {
 3958                // switching to a different item, so unpreview old active item
 3959                pane.update(cx, |pane, _| {
 3960                    pane.unpreview_item_if_preview(old_id);
 3961                });
 3962            }
 3963
 3964            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3965            if !allow_new_preview {
 3966                pane.update(cx, |pane, _| {
 3967                    pane.unpreview_item_if_preview(item.item_id());
 3968                });
 3969            }
 3970            return item;
 3971        }
 3972
 3973        let item = pane.update(cx, |pane, cx| {
 3974            cx.new(|cx| {
 3975                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3976            })
 3977        });
 3978        let mut destination_index = None;
 3979        pane.update(cx, |pane, cx| {
 3980            if !keep_old_preview && let Some(old_id) = old_item_id {
 3981                pane.unpreview_item_if_preview(old_id);
 3982            }
 3983            if allow_new_preview {
 3984                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3985            }
 3986        });
 3987
 3988        self.add_item(
 3989            pane,
 3990            Box::new(item.clone()),
 3991            destination_index,
 3992            activate_pane,
 3993            focus_item,
 3994            window,
 3995            cx,
 3996        );
 3997        item
 3998    }
 3999
 4000    pub fn open_shared_screen(
 4001        &mut self,
 4002        peer_id: PeerId,
 4003        window: &mut Window,
 4004        cx: &mut Context<Self>,
 4005    ) {
 4006        if let Some(shared_screen) =
 4007            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4008        {
 4009            self.active_pane.update(cx, |pane, cx| {
 4010                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4011            });
 4012        }
 4013    }
 4014
 4015    pub fn activate_item(
 4016        &mut self,
 4017        item: &dyn ItemHandle,
 4018        activate_pane: bool,
 4019        focus_item: bool,
 4020        window: &mut Window,
 4021        cx: &mut App,
 4022    ) -> bool {
 4023        let result = self.panes.iter().find_map(|pane| {
 4024            pane.read(cx)
 4025                .index_for_item(item)
 4026                .map(|ix| (pane.clone(), ix))
 4027        });
 4028        if let Some((pane, ix)) = result {
 4029            pane.update(cx, |pane, cx| {
 4030                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4031            });
 4032            true
 4033        } else {
 4034            false
 4035        }
 4036    }
 4037
 4038    fn activate_pane_at_index(
 4039        &mut self,
 4040        action: &ActivatePane,
 4041        window: &mut Window,
 4042        cx: &mut Context<Self>,
 4043    ) {
 4044        let panes = self.center.panes();
 4045        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4046            window.focus(&pane.focus_handle(cx), cx);
 4047        } else {
 4048            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4049                .detach();
 4050        }
 4051    }
 4052
 4053    fn move_item_to_pane_at_index(
 4054        &mut self,
 4055        action: &MoveItemToPane,
 4056        window: &mut Window,
 4057        cx: &mut Context<Self>,
 4058    ) {
 4059        let panes = self.center.panes();
 4060        let destination = match panes.get(action.destination) {
 4061            Some(&destination) => destination.clone(),
 4062            None => {
 4063                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4064                    return;
 4065                }
 4066                let direction = SplitDirection::Right;
 4067                let split_off_pane = self
 4068                    .find_pane_in_direction(direction, cx)
 4069                    .unwrap_or_else(|| self.active_pane.clone());
 4070                let new_pane = self.add_pane(window, cx);
 4071                if self
 4072                    .center
 4073                    .split(&split_off_pane, &new_pane, direction, cx)
 4074                    .log_err()
 4075                    .is_none()
 4076                {
 4077                    return;
 4078                };
 4079                new_pane
 4080            }
 4081        };
 4082
 4083        if action.clone {
 4084            if self
 4085                .active_pane
 4086                .read(cx)
 4087                .active_item()
 4088                .is_some_and(|item| item.can_split(cx))
 4089            {
 4090                clone_active_item(
 4091                    self.database_id(),
 4092                    &self.active_pane,
 4093                    &destination,
 4094                    action.focus,
 4095                    window,
 4096                    cx,
 4097                );
 4098                return;
 4099            }
 4100        }
 4101        move_active_item(
 4102            &self.active_pane,
 4103            &destination,
 4104            action.focus,
 4105            true,
 4106            window,
 4107            cx,
 4108        )
 4109    }
 4110
 4111    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4112        let panes = self.center.panes();
 4113        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4114            let next_ix = (ix + 1) % panes.len();
 4115            let next_pane = panes[next_ix].clone();
 4116            window.focus(&next_pane.focus_handle(cx), cx);
 4117        }
 4118    }
 4119
 4120    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4121        let panes = self.center.panes();
 4122        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4123            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4124            let prev_pane = panes[prev_ix].clone();
 4125            window.focus(&prev_pane.focus_handle(cx), cx);
 4126        }
 4127    }
 4128
 4129    pub fn activate_pane_in_direction(
 4130        &mut self,
 4131        direction: SplitDirection,
 4132        window: &mut Window,
 4133        cx: &mut App,
 4134    ) {
 4135        use ActivateInDirectionTarget as Target;
 4136        enum Origin {
 4137            LeftDock,
 4138            RightDock,
 4139            BottomDock,
 4140            Center,
 4141        }
 4142
 4143        let origin: Origin = [
 4144            (&self.left_dock, Origin::LeftDock),
 4145            (&self.right_dock, Origin::RightDock),
 4146            (&self.bottom_dock, Origin::BottomDock),
 4147        ]
 4148        .into_iter()
 4149        .find_map(|(dock, origin)| {
 4150            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4151                Some(origin)
 4152            } else {
 4153                None
 4154            }
 4155        })
 4156        .unwrap_or(Origin::Center);
 4157
 4158        let get_last_active_pane = || {
 4159            let pane = self
 4160                .last_active_center_pane
 4161                .clone()
 4162                .unwrap_or_else(|| {
 4163                    self.panes
 4164                        .first()
 4165                        .expect("There must be an active pane")
 4166                        .downgrade()
 4167                })
 4168                .upgrade()?;
 4169            (pane.read(cx).items_len() != 0).then_some(pane)
 4170        };
 4171
 4172        let try_dock =
 4173            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4174
 4175        let target = match (origin, direction) {
 4176            // We're in the center, so we first try to go to a different pane,
 4177            // otherwise try to go to a dock.
 4178            (Origin::Center, direction) => {
 4179                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4180                    Some(Target::Pane(pane))
 4181                } else {
 4182                    match direction {
 4183                        SplitDirection::Up => None,
 4184                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4185                        SplitDirection::Left => try_dock(&self.left_dock),
 4186                        SplitDirection::Right => try_dock(&self.right_dock),
 4187                    }
 4188                }
 4189            }
 4190
 4191            (Origin::LeftDock, SplitDirection::Right) => {
 4192                if let Some(last_active_pane) = get_last_active_pane() {
 4193                    Some(Target::Pane(last_active_pane))
 4194                } else {
 4195                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4196                }
 4197            }
 4198
 4199            (Origin::LeftDock, SplitDirection::Down)
 4200            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4201
 4202            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4203            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4204            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4205
 4206            (Origin::RightDock, SplitDirection::Left) => {
 4207                if let Some(last_active_pane) = get_last_active_pane() {
 4208                    Some(Target::Pane(last_active_pane))
 4209                } else {
 4210                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4211                }
 4212            }
 4213
 4214            _ => None,
 4215        };
 4216
 4217        match target {
 4218            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4219                let pane = pane.read(cx);
 4220                if let Some(item) = pane.active_item() {
 4221                    item.item_focus_handle(cx).focus(window, cx);
 4222                } else {
 4223                    log::error!(
 4224                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4225                    );
 4226                }
 4227            }
 4228            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4229                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4230                window.defer(cx, move |window, cx| {
 4231                    let dock = dock.read(cx);
 4232                    if let Some(panel) = dock.active_panel() {
 4233                        panel.panel_focus_handle(cx).focus(window, cx);
 4234                    } else {
 4235                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4236                    }
 4237                })
 4238            }
 4239            None => {}
 4240        }
 4241    }
 4242
 4243    pub fn move_item_to_pane_in_direction(
 4244        &mut self,
 4245        action: &MoveItemToPaneInDirection,
 4246        window: &mut Window,
 4247        cx: &mut Context<Self>,
 4248    ) {
 4249        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4250            Some(destination) => destination,
 4251            None => {
 4252                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4253                    return;
 4254                }
 4255                let new_pane = self.add_pane(window, cx);
 4256                if self
 4257                    .center
 4258                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4259                    .log_err()
 4260                    .is_none()
 4261                {
 4262                    return;
 4263                };
 4264                new_pane
 4265            }
 4266        };
 4267
 4268        if action.clone {
 4269            if self
 4270                .active_pane
 4271                .read(cx)
 4272                .active_item()
 4273                .is_some_and(|item| item.can_split(cx))
 4274            {
 4275                clone_active_item(
 4276                    self.database_id(),
 4277                    &self.active_pane,
 4278                    &destination,
 4279                    action.focus,
 4280                    window,
 4281                    cx,
 4282                );
 4283                return;
 4284            }
 4285        }
 4286        move_active_item(
 4287            &self.active_pane,
 4288            &destination,
 4289            action.focus,
 4290            true,
 4291            window,
 4292            cx,
 4293        );
 4294    }
 4295
 4296    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4297        self.center.bounding_box_for_pane(pane)
 4298    }
 4299
 4300    pub fn find_pane_in_direction(
 4301        &mut self,
 4302        direction: SplitDirection,
 4303        cx: &App,
 4304    ) -> Option<Entity<Pane>> {
 4305        self.center
 4306            .find_pane_in_direction(&self.active_pane, direction, cx)
 4307            .cloned()
 4308    }
 4309
 4310    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4311        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4312            self.center.swap(&self.active_pane, &to, cx);
 4313            cx.notify();
 4314        }
 4315    }
 4316
 4317    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4318        if self
 4319            .center
 4320            .move_to_border(&self.active_pane, direction, cx)
 4321            .unwrap()
 4322        {
 4323            cx.notify();
 4324        }
 4325    }
 4326
 4327    pub fn resize_pane(
 4328        &mut self,
 4329        axis: gpui::Axis,
 4330        amount: Pixels,
 4331        window: &mut Window,
 4332        cx: &mut Context<Self>,
 4333    ) {
 4334        let docks = self.all_docks();
 4335        let active_dock = docks
 4336            .into_iter()
 4337            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4338
 4339        if let Some(dock) = active_dock {
 4340            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4341                return;
 4342            };
 4343            match dock.read(cx).position() {
 4344                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4345                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4346                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4347            }
 4348        } else {
 4349            self.center
 4350                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4351        }
 4352        cx.notify();
 4353    }
 4354
 4355    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4356        self.center.reset_pane_sizes(cx);
 4357        cx.notify();
 4358    }
 4359
 4360    fn handle_pane_focused(
 4361        &mut self,
 4362        pane: Entity<Pane>,
 4363        window: &mut Window,
 4364        cx: &mut Context<Self>,
 4365    ) {
 4366        // This is explicitly hoisted out of the following check for pane identity as
 4367        // terminal panel panes are not registered as a center panes.
 4368        self.status_bar.update(cx, |status_bar, cx| {
 4369            status_bar.set_active_pane(&pane, window, cx);
 4370        });
 4371        if self.active_pane != pane {
 4372            self.set_active_pane(&pane, window, cx);
 4373        }
 4374
 4375        if self.last_active_center_pane.is_none() {
 4376            self.last_active_center_pane = Some(pane.downgrade());
 4377        }
 4378
 4379        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4380        // This prevents the dock from closing when focus events fire during window activation.
 4381        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4382            let dock_read = dock.read(cx);
 4383            if let Some(panel) = dock_read.active_panel()
 4384                && let Some(dock_pane) = panel.pane(cx)
 4385                && dock_pane == pane
 4386            {
 4387                Some(dock_read.position())
 4388            } else {
 4389                None
 4390            }
 4391        });
 4392
 4393        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4394        if pane.read(cx).is_zoomed() {
 4395            self.zoomed = Some(pane.downgrade().into());
 4396        } else {
 4397            self.zoomed = None;
 4398        }
 4399        self.zoomed_position = None;
 4400        cx.emit(Event::ZoomChanged);
 4401        self.update_active_view_for_followers(window, cx);
 4402        pane.update(cx, |pane, _| {
 4403            pane.track_alternate_file_items();
 4404        });
 4405
 4406        cx.notify();
 4407    }
 4408
 4409    fn set_active_pane(
 4410        &mut self,
 4411        pane: &Entity<Pane>,
 4412        window: &mut Window,
 4413        cx: &mut Context<Self>,
 4414    ) {
 4415        self.active_pane = pane.clone();
 4416        self.active_item_path_changed(true, window, cx);
 4417        self.last_active_center_pane = Some(pane.downgrade());
 4418    }
 4419
 4420    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4421        self.update_active_view_for_followers(window, cx);
 4422    }
 4423
 4424    fn handle_pane_event(
 4425        &mut self,
 4426        pane: &Entity<Pane>,
 4427        event: &pane::Event,
 4428        window: &mut Window,
 4429        cx: &mut Context<Self>,
 4430    ) {
 4431        let mut serialize_workspace = true;
 4432        match event {
 4433            pane::Event::AddItem { item } => {
 4434                item.added_to_pane(self, pane.clone(), window, cx);
 4435                cx.emit(Event::ItemAdded {
 4436                    item: item.boxed_clone(),
 4437                });
 4438            }
 4439            pane::Event::Split { direction, mode } => {
 4440                match mode {
 4441                    SplitMode::ClonePane => {
 4442                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4443                            .detach();
 4444                    }
 4445                    SplitMode::EmptyPane => {
 4446                        self.split_pane(pane.clone(), *direction, window, cx);
 4447                    }
 4448                    SplitMode::MovePane => {
 4449                        self.split_and_move(pane.clone(), *direction, window, cx);
 4450                    }
 4451                };
 4452            }
 4453            pane::Event::JoinIntoNext => {
 4454                self.join_pane_into_next(pane.clone(), window, cx);
 4455            }
 4456            pane::Event::JoinAll => {
 4457                self.join_all_panes(window, cx);
 4458            }
 4459            pane::Event::Remove { focus_on_pane } => {
 4460                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4461            }
 4462            pane::Event::ActivateItem {
 4463                local,
 4464                focus_changed,
 4465            } => {
 4466                window.invalidate_character_coordinates();
 4467
 4468                pane.update(cx, |pane, _| {
 4469                    pane.track_alternate_file_items();
 4470                });
 4471                if *local {
 4472                    self.unfollow_in_pane(pane, window, cx);
 4473                }
 4474                serialize_workspace = *focus_changed || pane != self.active_pane();
 4475                if pane == self.active_pane() {
 4476                    self.active_item_path_changed(*focus_changed, window, cx);
 4477                    self.update_active_view_for_followers(window, cx);
 4478                } else if *local {
 4479                    self.set_active_pane(pane, window, cx);
 4480                }
 4481            }
 4482            pane::Event::UserSavedItem { item, save_intent } => {
 4483                cx.emit(Event::UserSavedItem {
 4484                    pane: pane.downgrade(),
 4485                    item: item.boxed_clone(),
 4486                    save_intent: *save_intent,
 4487                });
 4488                serialize_workspace = false;
 4489            }
 4490            pane::Event::ChangeItemTitle => {
 4491                if *pane == self.active_pane {
 4492                    self.active_item_path_changed(false, window, cx);
 4493                }
 4494                serialize_workspace = false;
 4495            }
 4496            pane::Event::RemovedItem { item } => {
 4497                cx.emit(Event::ActiveItemChanged);
 4498                self.update_window_edited(window, cx);
 4499                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4500                    && entry.get().entity_id() == pane.entity_id()
 4501                {
 4502                    entry.remove();
 4503                }
 4504                cx.emit(Event::ItemRemoved {
 4505                    item_id: item.item_id(),
 4506                });
 4507            }
 4508            pane::Event::Focus => {
 4509                window.invalidate_character_coordinates();
 4510                self.handle_pane_focused(pane.clone(), window, cx);
 4511            }
 4512            pane::Event::ZoomIn => {
 4513                if *pane == self.active_pane {
 4514                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4515                    if pane.read(cx).has_focus(window, cx) {
 4516                        self.zoomed = Some(pane.downgrade().into());
 4517                        self.zoomed_position = None;
 4518                        cx.emit(Event::ZoomChanged);
 4519                    }
 4520                    cx.notify();
 4521                }
 4522            }
 4523            pane::Event::ZoomOut => {
 4524                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4525                if self.zoomed_position.is_none() {
 4526                    self.zoomed = None;
 4527                    cx.emit(Event::ZoomChanged);
 4528                }
 4529                cx.notify();
 4530            }
 4531            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4532        }
 4533
 4534        if serialize_workspace {
 4535            self.serialize_workspace(window, cx);
 4536        }
 4537    }
 4538
 4539    pub fn unfollow_in_pane(
 4540        &mut self,
 4541        pane: &Entity<Pane>,
 4542        window: &mut Window,
 4543        cx: &mut Context<Workspace>,
 4544    ) -> Option<CollaboratorId> {
 4545        let leader_id = self.leader_for_pane(pane)?;
 4546        self.unfollow(leader_id, window, cx);
 4547        Some(leader_id)
 4548    }
 4549
 4550    pub fn split_pane(
 4551        &mut self,
 4552        pane_to_split: Entity<Pane>,
 4553        split_direction: SplitDirection,
 4554        window: &mut Window,
 4555        cx: &mut Context<Self>,
 4556    ) -> Entity<Pane> {
 4557        let new_pane = self.add_pane(window, cx);
 4558        self.center
 4559            .split(&pane_to_split, &new_pane, split_direction, cx)
 4560            .unwrap();
 4561        cx.notify();
 4562        new_pane
 4563    }
 4564
 4565    pub fn split_and_move(
 4566        &mut self,
 4567        pane: Entity<Pane>,
 4568        direction: SplitDirection,
 4569        window: &mut Window,
 4570        cx: &mut Context<Self>,
 4571    ) {
 4572        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4573            return;
 4574        };
 4575        let new_pane = self.add_pane(window, cx);
 4576        new_pane.update(cx, |pane, cx| {
 4577            pane.add_item(item, true, true, None, window, cx)
 4578        });
 4579        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4580        cx.notify();
 4581    }
 4582
 4583    pub fn split_and_clone(
 4584        &mut self,
 4585        pane: Entity<Pane>,
 4586        direction: SplitDirection,
 4587        window: &mut Window,
 4588        cx: &mut Context<Self>,
 4589    ) -> Task<Option<Entity<Pane>>> {
 4590        let Some(item) = pane.read(cx).active_item() else {
 4591            return Task::ready(None);
 4592        };
 4593        if !item.can_split(cx) {
 4594            return Task::ready(None);
 4595        }
 4596        let task = item.clone_on_split(self.database_id(), window, cx);
 4597        cx.spawn_in(window, async move |this, cx| {
 4598            if let Some(clone) = task.await {
 4599                this.update_in(cx, |this, window, cx| {
 4600                    let new_pane = this.add_pane(window, cx);
 4601                    let nav_history = pane.read(cx).fork_nav_history();
 4602                    new_pane.update(cx, |pane, cx| {
 4603                        pane.set_nav_history(nav_history, cx);
 4604                        pane.add_item(clone, true, true, None, window, cx)
 4605                    });
 4606                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4607                    cx.notify();
 4608                    new_pane
 4609                })
 4610                .ok()
 4611            } else {
 4612                None
 4613            }
 4614        })
 4615    }
 4616
 4617    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4618        let active_item = self.active_pane.read(cx).active_item();
 4619        for pane in &self.panes {
 4620            join_pane_into_active(&self.active_pane, pane, window, cx);
 4621        }
 4622        if let Some(active_item) = active_item {
 4623            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4624        }
 4625        cx.notify();
 4626    }
 4627
 4628    pub fn join_pane_into_next(
 4629        &mut self,
 4630        pane: Entity<Pane>,
 4631        window: &mut Window,
 4632        cx: &mut Context<Self>,
 4633    ) {
 4634        let next_pane = self
 4635            .find_pane_in_direction(SplitDirection::Right, cx)
 4636            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4637            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4638            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4639        let Some(next_pane) = next_pane else {
 4640            return;
 4641        };
 4642        move_all_items(&pane, &next_pane, window, cx);
 4643        cx.notify();
 4644    }
 4645
 4646    fn remove_pane(
 4647        &mut self,
 4648        pane: Entity<Pane>,
 4649        focus_on: Option<Entity<Pane>>,
 4650        window: &mut Window,
 4651        cx: &mut Context<Self>,
 4652    ) {
 4653        if self.center.remove(&pane, cx).unwrap() {
 4654            self.force_remove_pane(&pane, &focus_on, window, cx);
 4655            self.unfollow_in_pane(&pane, window, cx);
 4656            self.last_leaders_by_pane.remove(&pane.downgrade());
 4657            for removed_item in pane.read(cx).items() {
 4658                self.panes_by_item.remove(&removed_item.item_id());
 4659            }
 4660
 4661            cx.notify();
 4662        } else {
 4663            self.active_item_path_changed(true, window, cx);
 4664        }
 4665        cx.emit(Event::PaneRemoved);
 4666    }
 4667
 4668    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4669        &mut self.panes
 4670    }
 4671
 4672    pub fn panes(&self) -> &[Entity<Pane>] {
 4673        &self.panes
 4674    }
 4675
 4676    pub fn active_pane(&self) -> &Entity<Pane> {
 4677        &self.active_pane
 4678    }
 4679
 4680    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4681        for dock in self.all_docks() {
 4682            if dock.focus_handle(cx).contains_focused(window, cx)
 4683                && let Some(pane) = dock
 4684                    .read(cx)
 4685                    .active_panel()
 4686                    .and_then(|panel| panel.pane(cx))
 4687            {
 4688                return pane;
 4689            }
 4690        }
 4691        self.active_pane().clone()
 4692    }
 4693
 4694    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4695        self.find_pane_in_direction(SplitDirection::Right, cx)
 4696            .unwrap_or_else(|| {
 4697                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4698            })
 4699    }
 4700
 4701    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4702        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4703        weak_pane.upgrade()
 4704    }
 4705
 4706    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4707        self.follower_states.retain(|leader_id, state| {
 4708            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4709                for item in state.items_by_leader_view_id.values() {
 4710                    item.view.set_leader_id(None, window, cx);
 4711                }
 4712                false
 4713            } else {
 4714                true
 4715            }
 4716        });
 4717        cx.notify();
 4718    }
 4719
 4720    pub fn start_following(
 4721        &mut self,
 4722        leader_id: impl Into<CollaboratorId>,
 4723        window: &mut Window,
 4724        cx: &mut Context<Self>,
 4725    ) -> Option<Task<Result<()>>> {
 4726        let leader_id = leader_id.into();
 4727        let pane = self.active_pane().clone();
 4728
 4729        self.last_leaders_by_pane
 4730            .insert(pane.downgrade(), leader_id);
 4731        self.unfollow(leader_id, window, cx);
 4732        self.unfollow_in_pane(&pane, window, cx);
 4733        self.follower_states.insert(
 4734            leader_id,
 4735            FollowerState {
 4736                center_pane: pane.clone(),
 4737                dock_pane: None,
 4738                active_view_id: None,
 4739                items_by_leader_view_id: Default::default(),
 4740            },
 4741        );
 4742        cx.notify();
 4743
 4744        match leader_id {
 4745            CollaboratorId::PeerId(leader_peer_id) => {
 4746                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4747                let project_id = self.project.read(cx).remote_id();
 4748                let request = self.app_state.client.request(proto::Follow {
 4749                    room_id,
 4750                    project_id,
 4751                    leader_id: Some(leader_peer_id),
 4752                });
 4753
 4754                Some(cx.spawn_in(window, async move |this, cx| {
 4755                    let response = request.await?;
 4756                    this.update(cx, |this, _| {
 4757                        let state = this
 4758                            .follower_states
 4759                            .get_mut(&leader_id)
 4760                            .context("following interrupted")?;
 4761                        state.active_view_id = response
 4762                            .active_view
 4763                            .as_ref()
 4764                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4765                        anyhow::Ok(())
 4766                    })??;
 4767                    if let Some(view) = response.active_view {
 4768                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4769                    }
 4770                    this.update_in(cx, |this, window, cx| {
 4771                        this.leader_updated(leader_id, window, cx)
 4772                    })?;
 4773                    Ok(())
 4774                }))
 4775            }
 4776            CollaboratorId::Agent => {
 4777                self.leader_updated(leader_id, window, cx)?;
 4778                Some(Task::ready(Ok(())))
 4779            }
 4780        }
 4781    }
 4782
 4783    pub fn follow_next_collaborator(
 4784        &mut self,
 4785        _: &FollowNextCollaborator,
 4786        window: &mut Window,
 4787        cx: &mut Context<Self>,
 4788    ) {
 4789        let collaborators = self.project.read(cx).collaborators();
 4790        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4791            let mut collaborators = collaborators.keys().copied();
 4792            for peer_id in collaborators.by_ref() {
 4793                if CollaboratorId::PeerId(peer_id) == leader_id {
 4794                    break;
 4795                }
 4796            }
 4797            collaborators.next().map(CollaboratorId::PeerId)
 4798        } else if let Some(last_leader_id) =
 4799            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4800        {
 4801            match last_leader_id {
 4802                CollaboratorId::PeerId(peer_id) => {
 4803                    if collaborators.contains_key(peer_id) {
 4804                        Some(*last_leader_id)
 4805                    } else {
 4806                        None
 4807                    }
 4808                }
 4809                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4810            }
 4811        } else {
 4812            None
 4813        };
 4814
 4815        let pane = self.active_pane.clone();
 4816        let Some(leader_id) = next_leader_id.or_else(|| {
 4817            Some(CollaboratorId::PeerId(
 4818                collaborators.keys().copied().next()?,
 4819            ))
 4820        }) else {
 4821            return;
 4822        };
 4823        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4824            return;
 4825        }
 4826        if let Some(task) = self.start_following(leader_id, window, cx) {
 4827            task.detach_and_log_err(cx)
 4828        }
 4829    }
 4830
 4831    pub fn follow(
 4832        &mut self,
 4833        leader_id: impl Into<CollaboratorId>,
 4834        window: &mut Window,
 4835        cx: &mut Context<Self>,
 4836    ) {
 4837        let leader_id = leader_id.into();
 4838
 4839        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4840            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4841                return;
 4842            };
 4843            let room = room.read(cx);
 4844            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4845                return;
 4846            };
 4847
 4848            let project = self.project.read(cx);
 4849
 4850            let other_project_id = match remote_participant.location {
 4851                call::ParticipantLocation::External => None,
 4852                call::ParticipantLocation::UnsharedProject => None,
 4853                call::ParticipantLocation::SharedProject { project_id } => {
 4854                    if Some(project_id) == project.remote_id() {
 4855                        None
 4856                    } else {
 4857                        Some(project_id)
 4858                    }
 4859                }
 4860            };
 4861
 4862            // if they are active in another project, follow there.
 4863            if let Some(project_id) = other_project_id {
 4864                let app_state = self.app_state.clone();
 4865                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4866                    .detach_and_log_err(cx);
 4867            }
 4868        }
 4869
 4870        // if you're already following, find the right pane and focus it.
 4871        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4872            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4873
 4874            return;
 4875        }
 4876
 4877        // Otherwise, follow.
 4878        if let Some(task) = self.start_following(leader_id, window, cx) {
 4879            task.detach_and_log_err(cx)
 4880        }
 4881    }
 4882
 4883    pub fn unfollow(
 4884        &mut self,
 4885        leader_id: impl Into<CollaboratorId>,
 4886        window: &mut Window,
 4887        cx: &mut Context<Self>,
 4888    ) -> Option<()> {
 4889        cx.notify();
 4890
 4891        let leader_id = leader_id.into();
 4892        let state = self.follower_states.remove(&leader_id)?;
 4893        for (_, item) in state.items_by_leader_view_id {
 4894            item.view.set_leader_id(None, window, cx);
 4895        }
 4896
 4897        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4898            let project_id = self.project.read(cx).remote_id();
 4899            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4900            self.app_state
 4901                .client
 4902                .send(proto::Unfollow {
 4903                    room_id,
 4904                    project_id,
 4905                    leader_id: Some(leader_peer_id),
 4906                })
 4907                .log_err();
 4908        }
 4909
 4910        Some(())
 4911    }
 4912
 4913    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4914        self.follower_states.contains_key(&id.into())
 4915    }
 4916
 4917    fn active_item_path_changed(
 4918        &mut self,
 4919        focus_changed: bool,
 4920        window: &mut Window,
 4921        cx: &mut Context<Self>,
 4922    ) {
 4923        cx.emit(Event::ActiveItemChanged);
 4924        let active_entry = self.active_project_path(cx);
 4925        self.project.update(cx, |project, cx| {
 4926            project.set_active_path(active_entry.clone(), cx)
 4927        });
 4928
 4929        if focus_changed && let Some(project_path) = &active_entry {
 4930            let git_store_entity = self.project.read(cx).git_store().clone();
 4931            git_store_entity.update(cx, |git_store, cx| {
 4932                git_store.set_active_repo_for_path(project_path, cx);
 4933            });
 4934        }
 4935
 4936        self.update_window_title(window, cx);
 4937    }
 4938
 4939    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4940        let project = self.project().read(cx);
 4941        let mut title = String::new();
 4942
 4943        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4944            let name = {
 4945                let settings_location = SettingsLocation {
 4946                    worktree_id: worktree.read(cx).id(),
 4947                    path: RelPath::empty(),
 4948                };
 4949
 4950                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4951                match &settings.project_name {
 4952                    Some(name) => name.as_str(),
 4953                    None => worktree.read(cx).root_name_str(),
 4954                }
 4955            };
 4956            if i > 0 {
 4957                title.push_str(", ");
 4958            }
 4959            title.push_str(name);
 4960        }
 4961
 4962        if title.is_empty() {
 4963            title = "empty project".to_string();
 4964        }
 4965
 4966        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4967            let filename = path.path.file_name().or_else(|| {
 4968                Some(
 4969                    project
 4970                        .worktree_for_id(path.worktree_id, cx)?
 4971                        .read(cx)
 4972                        .root_name_str(),
 4973                )
 4974            });
 4975
 4976            if let Some(filename) = filename {
 4977                title.push_str("");
 4978                title.push_str(filename.as_ref());
 4979            }
 4980        }
 4981
 4982        if project.is_via_collab() {
 4983            title.push_str("");
 4984        } else if project.is_shared() {
 4985            title.push_str("");
 4986        }
 4987
 4988        if let Some(last_title) = self.last_window_title.as_ref()
 4989            && &title == last_title
 4990        {
 4991            return;
 4992        }
 4993        window.set_window_title(&title);
 4994        SystemWindowTabController::update_tab_title(
 4995            cx,
 4996            window.window_handle().window_id(),
 4997            SharedString::from(&title),
 4998        );
 4999        self.last_window_title = Some(title);
 5000    }
 5001
 5002    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5003        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5004        if is_edited != self.window_edited {
 5005            self.window_edited = is_edited;
 5006            window.set_window_edited(self.window_edited)
 5007        }
 5008    }
 5009
 5010    fn update_item_dirty_state(
 5011        &mut self,
 5012        item: &dyn ItemHandle,
 5013        window: &mut Window,
 5014        cx: &mut App,
 5015    ) {
 5016        let is_dirty = item.is_dirty(cx);
 5017        let item_id = item.item_id();
 5018        let was_dirty = self.dirty_items.contains_key(&item_id);
 5019        if is_dirty == was_dirty {
 5020            return;
 5021        }
 5022        if was_dirty {
 5023            self.dirty_items.remove(&item_id);
 5024            self.update_window_edited(window, cx);
 5025            return;
 5026        }
 5027        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 5028            let s = item.on_release(
 5029                cx,
 5030                Box::new(move |cx| {
 5031                    window_handle
 5032                        .update(cx, |this, window, cx| {
 5033                            this.dirty_items.remove(&item_id);
 5034                            this.update_window_edited(window, cx)
 5035                        })
 5036                        .ok();
 5037                }),
 5038            );
 5039            self.dirty_items.insert(item_id, s);
 5040            self.update_window_edited(window, cx);
 5041        }
 5042    }
 5043
 5044    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5045        if self.notifications.is_empty() {
 5046            None
 5047        } else {
 5048            Some(
 5049                div()
 5050                    .absolute()
 5051                    .right_3()
 5052                    .bottom_3()
 5053                    .w_112()
 5054                    .h_full()
 5055                    .flex()
 5056                    .flex_col()
 5057                    .justify_end()
 5058                    .gap_2()
 5059                    .children(
 5060                        self.notifications
 5061                            .iter()
 5062                            .map(|(_, notification)| notification.clone().into_any()),
 5063                    ),
 5064            )
 5065        }
 5066    }
 5067
 5068    // RPC handlers
 5069
 5070    fn active_view_for_follower(
 5071        &self,
 5072        follower_project_id: Option<u64>,
 5073        window: &mut Window,
 5074        cx: &mut Context<Self>,
 5075    ) -> Option<proto::View> {
 5076        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5077        let item = item?;
 5078        let leader_id = self
 5079            .pane_for(&*item)
 5080            .and_then(|pane| self.leader_for_pane(&pane));
 5081        let leader_peer_id = match leader_id {
 5082            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5083            Some(CollaboratorId::Agent) | None => None,
 5084        };
 5085
 5086        let item_handle = item.to_followable_item_handle(cx)?;
 5087        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5088        let variant = item_handle.to_state_proto(window, cx)?;
 5089
 5090        if item_handle.is_project_item(window, cx)
 5091            && (follower_project_id.is_none()
 5092                || follower_project_id != self.project.read(cx).remote_id())
 5093        {
 5094            return None;
 5095        }
 5096
 5097        Some(proto::View {
 5098            id: id.to_proto(),
 5099            leader_id: leader_peer_id,
 5100            variant: Some(variant),
 5101            panel_id: panel_id.map(|id| id as i32),
 5102        })
 5103    }
 5104
 5105    fn handle_follow(
 5106        &mut self,
 5107        follower_project_id: Option<u64>,
 5108        window: &mut Window,
 5109        cx: &mut Context<Self>,
 5110    ) -> proto::FollowResponse {
 5111        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5112
 5113        cx.notify();
 5114        proto::FollowResponse {
 5115            views: active_view.iter().cloned().collect(),
 5116            active_view,
 5117        }
 5118    }
 5119
 5120    fn handle_update_followers(
 5121        &mut self,
 5122        leader_id: PeerId,
 5123        message: proto::UpdateFollowers,
 5124        _window: &mut Window,
 5125        _cx: &mut Context<Self>,
 5126    ) {
 5127        self.leader_updates_tx
 5128            .unbounded_send((leader_id, message))
 5129            .ok();
 5130    }
 5131
 5132    async fn process_leader_update(
 5133        this: &WeakEntity<Self>,
 5134        leader_id: PeerId,
 5135        update: proto::UpdateFollowers,
 5136        cx: &mut AsyncWindowContext,
 5137    ) -> Result<()> {
 5138        match update.variant.context("invalid update")? {
 5139            proto::update_followers::Variant::CreateView(view) => {
 5140                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5141                let should_add_view = this.update(cx, |this, _| {
 5142                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5143                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5144                    } else {
 5145                        anyhow::Ok(false)
 5146                    }
 5147                })??;
 5148
 5149                if should_add_view {
 5150                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5151                }
 5152            }
 5153            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5154                let should_add_view = this.update(cx, |this, _| {
 5155                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5156                        state.active_view_id = update_active_view
 5157                            .view
 5158                            .as_ref()
 5159                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5160
 5161                        if state.active_view_id.is_some_and(|view_id| {
 5162                            !state.items_by_leader_view_id.contains_key(&view_id)
 5163                        }) {
 5164                            anyhow::Ok(true)
 5165                        } else {
 5166                            anyhow::Ok(false)
 5167                        }
 5168                    } else {
 5169                        anyhow::Ok(false)
 5170                    }
 5171                })??;
 5172
 5173                if should_add_view && let Some(view) = update_active_view.view {
 5174                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5175                }
 5176            }
 5177            proto::update_followers::Variant::UpdateView(update_view) => {
 5178                let variant = update_view.variant.context("missing update view variant")?;
 5179                let id = update_view.id.context("missing update view id")?;
 5180                let mut tasks = Vec::new();
 5181                this.update_in(cx, |this, window, cx| {
 5182                    let project = this.project.clone();
 5183                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5184                        let view_id = ViewId::from_proto(id.clone())?;
 5185                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5186                            tasks.push(item.view.apply_update_proto(
 5187                                &project,
 5188                                variant.clone(),
 5189                                window,
 5190                                cx,
 5191                            ));
 5192                        }
 5193                    }
 5194                    anyhow::Ok(())
 5195                })??;
 5196                try_join_all(tasks).await.log_err();
 5197            }
 5198        }
 5199        this.update_in(cx, |this, window, cx| {
 5200            this.leader_updated(leader_id, window, cx)
 5201        })?;
 5202        Ok(())
 5203    }
 5204
 5205    async fn add_view_from_leader(
 5206        this: WeakEntity<Self>,
 5207        leader_id: PeerId,
 5208        view: &proto::View,
 5209        cx: &mut AsyncWindowContext,
 5210    ) -> Result<()> {
 5211        let this = this.upgrade().context("workspace dropped")?;
 5212
 5213        let Some(id) = view.id.clone() else {
 5214            anyhow::bail!("no id for view");
 5215        };
 5216        let id = ViewId::from_proto(id)?;
 5217        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5218
 5219        let pane = this.update(cx, |this, _cx| {
 5220            let state = this
 5221                .follower_states
 5222                .get(&leader_id.into())
 5223                .context("stopped following")?;
 5224            anyhow::Ok(state.pane().clone())
 5225        })?;
 5226        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5227            let client = this.read(cx).client().clone();
 5228            pane.items().find_map(|item| {
 5229                let item = item.to_followable_item_handle(cx)?;
 5230                if item.remote_id(&client, window, cx) == Some(id) {
 5231                    Some(item)
 5232                } else {
 5233                    None
 5234                }
 5235            })
 5236        })?;
 5237        let item = if let Some(existing_item) = existing_item {
 5238            existing_item
 5239        } else {
 5240            let variant = view.variant.clone();
 5241            anyhow::ensure!(variant.is_some(), "missing view variant");
 5242
 5243            let task = cx.update(|window, cx| {
 5244                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5245            })?;
 5246
 5247            let Some(task) = task else {
 5248                anyhow::bail!(
 5249                    "failed to construct view from leader (maybe from a different version of zed?)"
 5250                );
 5251            };
 5252
 5253            let mut new_item = task.await?;
 5254            pane.update_in(cx, |pane, window, cx| {
 5255                let mut item_to_remove = None;
 5256                for (ix, item) in pane.items().enumerate() {
 5257                    if let Some(item) = item.to_followable_item_handle(cx) {
 5258                        match new_item.dedup(item.as_ref(), window, cx) {
 5259                            Some(item::Dedup::KeepExisting) => {
 5260                                new_item =
 5261                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5262                                break;
 5263                            }
 5264                            Some(item::Dedup::ReplaceExisting) => {
 5265                                item_to_remove = Some((ix, item.item_id()));
 5266                                break;
 5267                            }
 5268                            None => {}
 5269                        }
 5270                    }
 5271                }
 5272
 5273                if let Some((ix, id)) = item_to_remove {
 5274                    pane.remove_item(id, false, false, window, cx);
 5275                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5276                }
 5277            })?;
 5278
 5279            new_item
 5280        };
 5281
 5282        this.update_in(cx, |this, window, cx| {
 5283            let state = this.follower_states.get_mut(&leader_id.into())?;
 5284            item.set_leader_id(Some(leader_id.into()), window, cx);
 5285            state.items_by_leader_view_id.insert(
 5286                id,
 5287                FollowerView {
 5288                    view: item,
 5289                    location: panel_id,
 5290                },
 5291            );
 5292
 5293            Some(())
 5294        })
 5295        .context("no follower state")?;
 5296
 5297        Ok(())
 5298    }
 5299
 5300    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5301        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5302            return;
 5303        };
 5304
 5305        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5306            let buffer_entity_id = agent_location.buffer.entity_id();
 5307            let view_id = ViewId {
 5308                creator: CollaboratorId::Agent,
 5309                id: buffer_entity_id.as_u64(),
 5310            };
 5311            follower_state.active_view_id = Some(view_id);
 5312
 5313            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5314                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5315                hash_map::Entry::Vacant(entry) => {
 5316                    let existing_view =
 5317                        follower_state
 5318                            .center_pane
 5319                            .read(cx)
 5320                            .items()
 5321                            .find_map(|item| {
 5322                                let item = item.to_followable_item_handle(cx)?;
 5323                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5324                                    && item.project_item_model_ids(cx).as_slice()
 5325                                        == [buffer_entity_id]
 5326                                {
 5327                                    Some(item)
 5328                                } else {
 5329                                    None
 5330                                }
 5331                            });
 5332                    let view = existing_view.or_else(|| {
 5333                        agent_location.buffer.upgrade().and_then(|buffer| {
 5334                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5335                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5336                            })?
 5337                            .to_followable_item_handle(cx)
 5338                        })
 5339                    });
 5340
 5341                    view.map(|view| {
 5342                        entry.insert(FollowerView {
 5343                            view,
 5344                            location: None,
 5345                        })
 5346                    })
 5347                }
 5348            };
 5349
 5350            if let Some(item) = item {
 5351                item.view
 5352                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5353                item.view
 5354                    .update_agent_location(agent_location.position, window, cx);
 5355            }
 5356        } else {
 5357            follower_state.active_view_id = None;
 5358        }
 5359
 5360        self.leader_updated(CollaboratorId::Agent, window, cx);
 5361    }
 5362
 5363    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5364        let mut is_project_item = true;
 5365        let mut update = proto::UpdateActiveView::default();
 5366        if window.is_window_active() {
 5367            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5368
 5369            if let Some(item) = active_item
 5370                && item.item_focus_handle(cx).contains_focused(window, cx)
 5371            {
 5372                let leader_id = self
 5373                    .pane_for(&*item)
 5374                    .and_then(|pane| self.leader_for_pane(&pane));
 5375                let leader_peer_id = match leader_id {
 5376                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5377                    Some(CollaboratorId::Agent) | None => None,
 5378                };
 5379
 5380                if let Some(item) = item.to_followable_item_handle(cx) {
 5381                    let id = item
 5382                        .remote_id(&self.app_state.client, window, cx)
 5383                        .map(|id| id.to_proto());
 5384
 5385                    if let Some(id) = id
 5386                        && let Some(variant) = item.to_state_proto(window, cx)
 5387                    {
 5388                        let view = Some(proto::View {
 5389                            id,
 5390                            leader_id: leader_peer_id,
 5391                            variant: Some(variant),
 5392                            panel_id: panel_id.map(|id| id as i32),
 5393                        });
 5394
 5395                        is_project_item = item.is_project_item(window, cx);
 5396                        update = proto::UpdateActiveView { view };
 5397                    };
 5398                }
 5399            }
 5400        }
 5401
 5402        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5403        if active_view_id != self.last_active_view_id.as_ref() {
 5404            self.last_active_view_id = active_view_id.cloned();
 5405            self.update_followers(
 5406                is_project_item,
 5407                proto::update_followers::Variant::UpdateActiveView(update),
 5408                window,
 5409                cx,
 5410            );
 5411        }
 5412    }
 5413
 5414    fn active_item_for_followers(
 5415        &self,
 5416        window: &mut Window,
 5417        cx: &mut App,
 5418    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5419        let mut active_item = None;
 5420        let mut panel_id = None;
 5421        for dock in self.all_docks() {
 5422            if dock.focus_handle(cx).contains_focused(window, cx)
 5423                && let Some(panel) = dock.read(cx).active_panel()
 5424                && let Some(pane) = panel.pane(cx)
 5425                && let Some(item) = pane.read(cx).active_item()
 5426            {
 5427                active_item = Some(item);
 5428                panel_id = panel.remote_id();
 5429                break;
 5430            }
 5431        }
 5432
 5433        if active_item.is_none() {
 5434            active_item = self.active_pane().read(cx).active_item();
 5435        }
 5436        (active_item, panel_id)
 5437    }
 5438
 5439    fn update_followers(
 5440        &self,
 5441        project_only: bool,
 5442        update: proto::update_followers::Variant,
 5443        _: &mut Window,
 5444        cx: &mut App,
 5445    ) -> Option<()> {
 5446        // If this update only applies to for followers in the current project,
 5447        // then skip it unless this project is shared. If it applies to all
 5448        // followers, regardless of project, then set `project_id` to none,
 5449        // indicating that it goes to all followers.
 5450        let project_id = if project_only {
 5451            Some(self.project.read(cx).remote_id()?)
 5452        } else {
 5453            None
 5454        };
 5455        self.app_state().workspace_store.update(cx, |store, cx| {
 5456            store.update_followers(project_id, update, cx)
 5457        })
 5458    }
 5459
 5460    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5461        self.follower_states.iter().find_map(|(leader_id, state)| {
 5462            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5463                Some(*leader_id)
 5464            } else {
 5465                None
 5466            }
 5467        })
 5468    }
 5469
 5470    fn leader_updated(
 5471        &mut self,
 5472        leader_id: impl Into<CollaboratorId>,
 5473        window: &mut Window,
 5474        cx: &mut Context<Self>,
 5475    ) -> Option<Box<dyn ItemHandle>> {
 5476        cx.notify();
 5477
 5478        let leader_id = leader_id.into();
 5479        let (panel_id, item) = match leader_id {
 5480            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5481            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5482        };
 5483
 5484        let state = self.follower_states.get(&leader_id)?;
 5485        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5486        let pane;
 5487        if let Some(panel_id) = panel_id {
 5488            pane = self
 5489                .activate_panel_for_proto_id(panel_id, window, cx)?
 5490                .pane(cx)?;
 5491            let state = self.follower_states.get_mut(&leader_id)?;
 5492            state.dock_pane = Some(pane.clone());
 5493        } else {
 5494            pane = state.center_pane.clone();
 5495            let state = self.follower_states.get_mut(&leader_id)?;
 5496            if let Some(dock_pane) = state.dock_pane.take() {
 5497                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5498            }
 5499        }
 5500
 5501        pane.update(cx, |pane, cx| {
 5502            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5503            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5504                pane.activate_item(index, false, false, window, cx);
 5505            } else {
 5506                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5507            }
 5508
 5509            if focus_active_item {
 5510                pane.focus_active_item(window, cx)
 5511            }
 5512        });
 5513
 5514        Some(item)
 5515    }
 5516
 5517    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5518        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5519        let active_view_id = state.active_view_id?;
 5520        Some(
 5521            state
 5522                .items_by_leader_view_id
 5523                .get(&active_view_id)?
 5524                .view
 5525                .boxed_clone(),
 5526        )
 5527    }
 5528
 5529    fn active_item_for_peer(
 5530        &self,
 5531        peer_id: PeerId,
 5532        window: &mut Window,
 5533        cx: &mut Context<Self>,
 5534    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5535        let call = self.active_call()?;
 5536        let room = call.read(cx).room()?.read(cx);
 5537        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5538        let leader_in_this_app;
 5539        let leader_in_this_project;
 5540        match participant.location {
 5541            call::ParticipantLocation::SharedProject { project_id } => {
 5542                leader_in_this_app = true;
 5543                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5544            }
 5545            call::ParticipantLocation::UnsharedProject => {
 5546                leader_in_this_app = true;
 5547                leader_in_this_project = false;
 5548            }
 5549            call::ParticipantLocation::External => {
 5550                leader_in_this_app = false;
 5551                leader_in_this_project = false;
 5552            }
 5553        };
 5554        let state = self.follower_states.get(&peer_id.into())?;
 5555        let mut item_to_activate = None;
 5556        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5557            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5558                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5559            {
 5560                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5561            }
 5562        } else if let Some(shared_screen) =
 5563            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5564        {
 5565            item_to_activate = Some((None, Box::new(shared_screen)));
 5566        }
 5567        item_to_activate
 5568    }
 5569
 5570    fn shared_screen_for_peer(
 5571        &self,
 5572        peer_id: PeerId,
 5573        pane: &Entity<Pane>,
 5574        window: &mut Window,
 5575        cx: &mut App,
 5576    ) -> Option<Entity<SharedScreen>> {
 5577        let call = self.active_call()?;
 5578        let room = call.read(cx).room()?.clone();
 5579        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5580        let track = participant.video_tracks.values().next()?.clone();
 5581        let user = participant.user.clone();
 5582
 5583        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5584            if item.read(cx).peer_id == peer_id {
 5585                return Some(item);
 5586            }
 5587        }
 5588
 5589        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5590    }
 5591
 5592    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5593        if window.is_window_active() {
 5594            self.update_active_view_for_followers(window, cx);
 5595
 5596            if let Some(database_id) = self.database_id {
 5597                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5598                    .detach();
 5599            }
 5600        } else {
 5601            for pane in &self.panes {
 5602                pane.update(cx, |pane, cx| {
 5603                    if let Some(item) = pane.active_item() {
 5604                        item.workspace_deactivated(window, cx);
 5605                    }
 5606                    for item in pane.items() {
 5607                        if matches!(
 5608                            item.workspace_settings(cx).autosave,
 5609                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5610                        ) {
 5611                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5612                                .detach_and_log_err(cx);
 5613                        }
 5614                    }
 5615                });
 5616            }
 5617        }
 5618    }
 5619
 5620    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5621        self.active_call.as_ref().map(|(call, _)| call)
 5622    }
 5623
 5624    fn on_active_call_event(
 5625        &mut self,
 5626        _: &Entity<ActiveCall>,
 5627        event: &call::room::Event,
 5628        window: &mut Window,
 5629        cx: &mut Context<Self>,
 5630    ) {
 5631        match event {
 5632            call::room::Event::ParticipantLocationChanged { participant_id }
 5633            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5634                self.leader_updated(participant_id, window, cx);
 5635            }
 5636            _ => {}
 5637        }
 5638    }
 5639
 5640    pub fn database_id(&self) -> Option<WorkspaceId> {
 5641        self.database_id
 5642    }
 5643
 5644    pub fn session_id(&self) -> Option<String> {
 5645        self.session_id.clone()
 5646    }
 5647
 5648    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5649        let project = self.project().read(cx);
 5650        project
 5651            .visible_worktrees(cx)
 5652            .map(|worktree| worktree.read(cx).abs_path())
 5653            .collect::<Vec<_>>()
 5654    }
 5655
 5656    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5657        match member {
 5658            Member::Axis(PaneAxis { members, .. }) => {
 5659                for child in members.iter() {
 5660                    self.remove_panes(child.clone(), window, cx)
 5661                }
 5662            }
 5663            Member::Pane(pane) => {
 5664                self.force_remove_pane(&pane, &None, window, cx);
 5665            }
 5666        }
 5667    }
 5668
 5669    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5670        self.session_id.take();
 5671        self.serialize_workspace_internal(window, cx)
 5672    }
 5673
 5674    fn force_remove_pane(
 5675        &mut self,
 5676        pane: &Entity<Pane>,
 5677        focus_on: &Option<Entity<Pane>>,
 5678        window: &mut Window,
 5679        cx: &mut Context<Workspace>,
 5680    ) {
 5681        self.panes.retain(|p| p != pane);
 5682        if let Some(focus_on) = focus_on {
 5683            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5684        } else if self.active_pane() == pane {
 5685            self.panes
 5686                .last()
 5687                .unwrap()
 5688                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5689        }
 5690        if self.last_active_center_pane == Some(pane.downgrade()) {
 5691            self.last_active_center_pane = None;
 5692        }
 5693        cx.notify();
 5694    }
 5695
 5696    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5697        if self._schedule_serialize_workspace.is_none() {
 5698            self._schedule_serialize_workspace =
 5699                Some(cx.spawn_in(window, async move |this, cx| {
 5700                    cx.background_executor()
 5701                        .timer(SERIALIZATION_THROTTLE_TIME)
 5702                        .await;
 5703                    this.update_in(cx, |this, window, cx| {
 5704                        this.serialize_workspace_internal(window, cx).detach();
 5705                        this._schedule_serialize_workspace.take();
 5706                    })
 5707                    .log_err();
 5708                }));
 5709        }
 5710    }
 5711
 5712    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5713        let Some(database_id) = self.database_id() else {
 5714            return Task::ready(());
 5715        };
 5716
 5717        fn serialize_pane_handle(
 5718            pane_handle: &Entity<Pane>,
 5719            window: &mut Window,
 5720            cx: &mut App,
 5721        ) -> SerializedPane {
 5722            let (items, active, pinned_count) = {
 5723                let pane = pane_handle.read(cx);
 5724                let active_item_id = pane.active_item().map(|item| item.item_id());
 5725                (
 5726                    pane.items()
 5727                        .filter_map(|handle| {
 5728                            let handle = handle.to_serializable_item_handle(cx)?;
 5729
 5730                            Some(SerializedItem {
 5731                                kind: Arc::from(handle.serialized_item_kind()),
 5732                                item_id: handle.item_id().as_u64(),
 5733                                active: Some(handle.item_id()) == active_item_id,
 5734                                preview: pane.is_active_preview_item(handle.item_id()),
 5735                            })
 5736                        })
 5737                        .collect::<Vec<_>>(),
 5738                    pane.has_focus(window, cx),
 5739                    pane.pinned_count(),
 5740                )
 5741            };
 5742
 5743            SerializedPane::new(items, active, pinned_count)
 5744        }
 5745
 5746        fn build_serialized_pane_group(
 5747            pane_group: &Member,
 5748            window: &mut Window,
 5749            cx: &mut App,
 5750        ) -> SerializedPaneGroup {
 5751            match pane_group {
 5752                Member::Axis(PaneAxis {
 5753                    axis,
 5754                    members,
 5755                    flexes,
 5756                    bounding_boxes: _,
 5757                }) => SerializedPaneGroup::Group {
 5758                    axis: SerializedAxis(*axis),
 5759                    children: members
 5760                        .iter()
 5761                        .map(|member| build_serialized_pane_group(member, window, cx))
 5762                        .collect::<Vec<_>>(),
 5763                    flexes: Some(flexes.lock().clone()),
 5764                },
 5765                Member::Pane(pane_handle) => {
 5766                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5767                }
 5768            }
 5769        }
 5770
 5771        fn build_serialized_docks(
 5772            this: &Workspace,
 5773            window: &mut Window,
 5774            cx: &mut App,
 5775        ) -> DockStructure {
 5776            let left_dock = this.left_dock.read(cx);
 5777            let left_visible = left_dock.is_open();
 5778            let left_active_panel = left_dock
 5779                .active_panel()
 5780                .map(|panel| panel.persistent_name().to_string());
 5781            let left_dock_zoom = left_dock
 5782                .active_panel()
 5783                .map(|panel| panel.is_zoomed(window, cx))
 5784                .unwrap_or(false);
 5785
 5786            let right_dock = this.right_dock.read(cx);
 5787            let right_visible = right_dock.is_open();
 5788            let right_active_panel = right_dock
 5789                .active_panel()
 5790                .map(|panel| panel.persistent_name().to_string());
 5791            let right_dock_zoom = right_dock
 5792                .active_panel()
 5793                .map(|panel| panel.is_zoomed(window, cx))
 5794                .unwrap_or(false);
 5795
 5796            let bottom_dock = this.bottom_dock.read(cx);
 5797            let bottom_visible = bottom_dock.is_open();
 5798            let bottom_active_panel = bottom_dock
 5799                .active_panel()
 5800                .map(|panel| panel.persistent_name().to_string());
 5801            let bottom_dock_zoom = bottom_dock
 5802                .active_panel()
 5803                .map(|panel| panel.is_zoomed(window, cx))
 5804                .unwrap_or(false);
 5805
 5806            DockStructure {
 5807                left: DockData {
 5808                    visible: left_visible,
 5809                    active_panel: left_active_panel,
 5810                    zoom: left_dock_zoom,
 5811                },
 5812                right: DockData {
 5813                    visible: right_visible,
 5814                    active_panel: right_active_panel,
 5815                    zoom: right_dock_zoom,
 5816                },
 5817                bottom: DockData {
 5818                    visible: bottom_visible,
 5819                    active_panel: bottom_active_panel,
 5820                    zoom: bottom_dock_zoom,
 5821                },
 5822            }
 5823        }
 5824
 5825        match self.serialize_workspace_location(cx) {
 5826            WorkspaceLocation::Location(location, paths) => {
 5827                let breakpoints = self.project.update(cx, |project, cx| {
 5828                    project
 5829                        .breakpoint_store()
 5830                        .read(cx)
 5831                        .all_source_breakpoints(cx)
 5832                });
 5833                let user_toolchains = self
 5834                    .project
 5835                    .read(cx)
 5836                    .user_toolchains(cx)
 5837                    .unwrap_or_default();
 5838
 5839                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5840                let docks = build_serialized_docks(self, window, cx);
 5841                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5842
 5843                let serialized_workspace = SerializedWorkspace {
 5844                    id: database_id,
 5845                    location,
 5846                    paths,
 5847                    center_group,
 5848                    window_bounds,
 5849                    display: Default::default(),
 5850                    docks,
 5851                    centered_layout: self.centered_layout,
 5852                    session_id: self.session_id.clone(),
 5853                    breakpoints,
 5854                    window_id: Some(window.window_handle().window_id().as_u64()),
 5855                    user_toolchains,
 5856                };
 5857
 5858                window.spawn(cx, async move |_| {
 5859                    persistence::DB.save_workspace(serialized_workspace).await;
 5860                })
 5861            }
 5862            WorkspaceLocation::DetachFromSession => {
 5863                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5864                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5865                window.spawn(cx, async move |_| {
 5866                    persistence::DB
 5867                        .set_window_open_status(
 5868                            database_id,
 5869                            window_bounds,
 5870                            display.unwrap_or_default(),
 5871                        )
 5872                        .await
 5873                        .log_err();
 5874                    persistence::DB
 5875                        .set_session_id(database_id, None)
 5876                        .await
 5877                        .log_err();
 5878                })
 5879            }
 5880            WorkspaceLocation::None => Task::ready(()),
 5881        }
 5882    }
 5883
 5884    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5885        let paths = PathList::new(&self.root_paths(cx));
 5886        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5887            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5888        } else if self.project.read(cx).is_local() {
 5889            if !paths.is_empty() {
 5890                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5891            } else {
 5892                WorkspaceLocation::DetachFromSession
 5893            }
 5894        } else {
 5895            WorkspaceLocation::None
 5896        }
 5897    }
 5898
 5899    fn update_history(&self, cx: &mut App) {
 5900        let Some(id) = self.database_id() else {
 5901            return;
 5902        };
 5903        if !self.project.read(cx).is_local() {
 5904            return;
 5905        }
 5906        if let Some(manager) = HistoryManager::global(cx) {
 5907            let paths = PathList::new(&self.root_paths(cx));
 5908            manager.update(cx, |this, cx| {
 5909                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5910            });
 5911        }
 5912    }
 5913
 5914    async fn serialize_items(
 5915        this: &WeakEntity<Self>,
 5916        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5917        cx: &mut AsyncWindowContext,
 5918    ) -> Result<()> {
 5919        const CHUNK_SIZE: usize = 200;
 5920
 5921        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5922
 5923        while let Some(items_received) = serializable_items.next().await {
 5924            let unique_items =
 5925                items_received
 5926                    .into_iter()
 5927                    .fold(HashMap::default(), |mut acc, item| {
 5928                        acc.entry(item.item_id()).or_insert(item);
 5929                        acc
 5930                    });
 5931
 5932            // We use into_iter() here so that the references to the items are moved into
 5933            // the tasks and not kept alive while we're sleeping.
 5934            for (_, item) in unique_items.into_iter() {
 5935                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5936                    item.serialize(workspace, false, window, cx)
 5937                }) {
 5938                    cx.background_spawn(async move { task.await.log_err() })
 5939                        .detach();
 5940                }
 5941            }
 5942
 5943            cx.background_executor()
 5944                .timer(SERIALIZATION_THROTTLE_TIME)
 5945                .await;
 5946        }
 5947
 5948        Ok(())
 5949    }
 5950
 5951    pub(crate) fn enqueue_item_serialization(
 5952        &mut self,
 5953        item: Box<dyn SerializableItemHandle>,
 5954    ) -> Result<()> {
 5955        self.serializable_items_tx
 5956            .unbounded_send(item)
 5957            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5958    }
 5959
 5960    pub(crate) fn load_workspace(
 5961        serialized_workspace: SerializedWorkspace,
 5962        paths_to_open: Vec<Option<ProjectPath>>,
 5963        window: &mut Window,
 5964        cx: &mut Context<Workspace>,
 5965    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5966        cx.spawn_in(window, async move |workspace, cx| {
 5967            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5968
 5969            let mut center_group = None;
 5970            let mut center_items = None;
 5971
 5972            // Traverse the splits tree and add to things
 5973            if let Some((group, active_pane, items)) = serialized_workspace
 5974                .center_group
 5975                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5976                .await
 5977            {
 5978                center_items = Some(items);
 5979                center_group = Some((group, active_pane))
 5980            }
 5981
 5982            let mut items_by_project_path = HashMap::default();
 5983            let mut item_ids_by_kind = HashMap::default();
 5984            let mut all_deserialized_items = Vec::default();
 5985            cx.update(|_, cx| {
 5986                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5987                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5988                        item_ids_by_kind
 5989                            .entry(serializable_item_handle.serialized_item_kind())
 5990                            .or_insert(Vec::new())
 5991                            .push(item.item_id().as_u64() as ItemId);
 5992                    }
 5993
 5994                    if let Some(project_path) = item.project_path(cx) {
 5995                        items_by_project_path.insert(project_path, item.clone());
 5996                    }
 5997                    all_deserialized_items.push(item);
 5998                }
 5999            })?;
 6000
 6001            let opened_items = paths_to_open
 6002                .into_iter()
 6003                .map(|path_to_open| {
 6004                    path_to_open
 6005                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6006                })
 6007                .collect::<Vec<_>>();
 6008
 6009            // Remove old panes from workspace panes list
 6010            workspace.update_in(cx, |workspace, window, cx| {
 6011                if let Some((center_group, active_pane)) = center_group {
 6012                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6013
 6014                    // Swap workspace center group
 6015                    workspace.center = PaneGroup::with_root(center_group);
 6016                    workspace.center.set_is_center(true);
 6017                    workspace.center.mark_positions(cx);
 6018
 6019                    if let Some(active_pane) = active_pane {
 6020                        workspace.set_active_pane(&active_pane, window, cx);
 6021                        cx.focus_self(window);
 6022                    } else {
 6023                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6024                    }
 6025                }
 6026
 6027                let docks = serialized_workspace.docks;
 6028
 6029                for (dock, serialized_dock) in [
 6030                    (&mut workspace.right_dock, docks.right),
 6031                    (&mut workspace.left_dock, docks.left),
 6032                    (&mut workspace.bottom_dock, docks.bottom),
 6033                ]
 6034                .iter_mut()
 6035                {
 6036                    dock.update(cx, |dock, cx| {
 6037                        dock.serialized_dock = Some(serialized_dock.clone());
 6038                        dock.restore_state(window, cx);
 6039                    });
 6040                }
 6041
 6042                cx.notify();
 6043            })?;
 6044
 6045            let _ = project
 6046                .update(cx, |project, cx| {
 6047                    project
 6048                        .breakpoint_store()
 6049                        .update(cx, |breakpoint_store, cx| {
 6050                            breakpoint_store
 6051                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6052                        })
 6053                })
 6054                .await;
 6055
 6056            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6057            // after loading the items, we might have different items and in order to avoid
 6058            // the database filling up, we delete items that haven't been loaded now.
 6059            //
 6060            // The items that have been loaded, have been saved after they've been added to the workspace.
 6061            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6062                item_ids_by_kind
 6063                    .into_iter()
 6064                    .map(|(item_kind, loaded_items)| {
 6065                        SerializableItemRegistry::cleanup(
 6066                            item_kind,
 6067                            serialized_workspace.id,
 6068                            loaded_items,
 6069                            window,
 6070                            cx,
 6071                        )
 6072                        .log_err()
 6073                    })
 6074                    .collect::<Vec<_>>()
 6075            })?;
 6076
 6077            futures::future::join_all(clean_up_tasks).await;
 6078
 6079            workspace
 6080                .update_in(cx, |workspace, window, cx| {
 6081                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6082                    workspace.serialize_workspace_internal(window, cx).detach();
 6083
 6084                    // Ensure that we mark the window as edited if we did load dirty items
 6085                    workspace.update_window_edited(window, cx);
 6086                })
 6087                .ok();
 6088
 6089            Ok(opened_items)
 6090        })
 6091    }
 6092
 6093    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6094        self.add_workspace_actions_listeners(div, window, cx)
 6095            .on_action(cx.listener(
 6096                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6097                    for action in &action_sequence.0 {
 6098                        window.dispatch_action(action.boxed_clone(), cx);
 6099                    }
 6100                },
 6101            ))
 6102            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6103            .on_action(cx.listener(Self::close_all_items_and_panes))
 6104            .on_action(cx.listener(Self::save_all))
 6105            .on_action(cx.listener(Self::send_keystrokes))
 6106            .on_action(cx.listener(Self::add_folder_to_project))
 6107            .on_action(cx.listener(Self::follow_next_collaborator))
 6108            .on_action(cx.listener(Self::close_window))
 6109            .on_action(cx.listener(Self::activate_pane_at_index))
 6110            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6111            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6112            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6113            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6114                let pane = workspace.active_pane().clone();
 6115                workspace.unfollow_in_pane(&pane, window, cx);
 6116            }))
 6117            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6118                workspace
 6119                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6120                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6121            }))
 6122            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6123                workspace
 6124                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6125                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6126            }))
 6127            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6128                workspace
 6129                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6130                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6131            }))
 6132            .on_action(
 6133                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6134                    workspace.activate_previous_pane(window, cx)
 6135                }),
 6136            )
 6137            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6138                workspace.activate_next_pane(window, cx)
 6139            }))
 6140            .on_action(
 6141                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6142                    workspace.activate_next_window(cx)
 6143                }),
 6144            )
 6145            .on_action(
 6146                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6147                    workspace.activate_previous_window(cx)
 6148                }),
 6149            )
 6150            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6151                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6152            }))
 6153            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6154                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6155            }))
 6156            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6157                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6158            }))
 6159            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6160                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6161            }))
 6162            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6163                workspace.activate_next_pane(window, cx)
 6164            }))
 6165            .on_action(cx.listener(
 6166                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6167                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6168                },
 6169            ))
 6170            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6171                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6172            }))
 6173            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6174                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6175            }))
 6176            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6177                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6178            }))
 6179            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6180                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6181            }))
 6182            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6183                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6184                    SplitDirection::Down,
 6185                    SplitDirection::Up,
 6186                    SplitDirection::Right,
 6187                    SplitDirection::Left,
 6188                ];
 6189                for dir in DIRECTION_PRIORITY {
 6190                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6191                        workspace.swap_pane_in_direction(dir, cx);
 6192                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6193                        break;
 6194                    }
 6195                }
 6196            }))
 6197            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6198                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6199            }))
 6200            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6201                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6202            }))
 6203            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6204                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6205            }))
 6206            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6207                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6208            }))
 6209            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6210                this.toggle_dock(DockPosition::Left, window, cx);
 6211            }))
 6212            .on_action(cx.listener(
 6213                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6214                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6215                },
 6216            ))
 6217            .on_action(cx.listener(
 6218                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6219                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6220                },
 6221            ))
 6222            .on_action(cx.listener(
 6223                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6224                    if !workspace.close_active_dock(window, cx) {
 6225                        cx.propagate();
 6226                    }
 6227                },
 6228            ))
 6229            .on_action(
 6230                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6231                    workspace.close_all_docks(window, cx);
 6232                }),
 6233            )
 6234            .on_action(cx.listener(Self::toggle_all_docks))
 6235            .on_action(cx.listener(
 6236                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6237                    workspace.clear_all_notifications(cx);
 6238                },
 6239            ))
 6240            .on_action(cx.listener(
 6241                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6242                    workspace.clear_navigation_history(window, cx);
 6243                },
 6244            ))
 6245            .on_action(cx.listener(
 6246                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6247                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6248                        workspace.suppress_notification(&notification_id, cx);
 6249                    }
 6250                },
 6251            ))
 6252            .on_action(cx.listener(
 6253                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6254                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6255                },
 6256            ))
 6257            .on_action(
 6258                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6259                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6260                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6261                            trusted_worktrees.clear_trusted_paths()
 6262                        });
 6263                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6264                        cx.spawn(async move |_, cx| {
 6265                            if clear_task.await.log_err().is_some() {
 6266                                cx.update(|cx| reload(cx));
 6267                            }
 6268                        })
 6269                        .detach();
 6270                    }
 6271                }),
 6272            )
 6273            .on_action(cx.listener(
 6274                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6275                    workspace.reopen_closed_item(window, cx).detach();
 6276                },
 6277            ))
 6278            .on_action(cx.listener(
 6279                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6280                    for dock in workspace.all_docks() {
 6281                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6282                            let Some(panel) = dock.read(cx).active_panel() else {
 6283                                return;
 6284                            };
 6285
 6286                            // Set to `None`, then the size will fall back to the default.
 6287                            panel.clone().set_size(None, window, cx);
 6288
 6289                            return;
 6290                        }
 6291                    }
 6292                },
 6293            ))
 6294            .on_action(cx.listener(
 6295                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6296                    for dock in workspace.all_docks() {
 6297                        if let Some(panel) = dock.read(cx).visible_panel() {
 6298                            // Set to `None`, then the size will fall back to the default.
 6299                            panel.clone().set_size(None, window, cx);
 6300                        }
 6301                    }
 6302                },
 6303            ))
 6304            .on_action(cx.listener(
 6305                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6306                    adjust_active_dock_size_by_px(
 6307                        px_with_ui_font_fallback(act.px, cx),
 6308                        workspace,
 6309                        window,
 6310                        cx,
 6311                    );
 6312                },
 6313            ))
 6314            .on_action(cx.listener(
 6315                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6316                    adjust_active_dock_size_by_px(
 6317                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6318                        workspace,
 6319                        window,
 6320                        cx,
 6321                    );
 6322                },
 6323            ))
 6324            .on_action(cx.listener(
 6325                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6326                    adjust_open_docks_size_by_px(
 6327                        px_with_ui_font_fallback(act.px, cx),
 6328                        workspace,
 6329                        window,
 6330                        cx,
 6331                    );
 6332                },
 6333            ))
 6334            .on_action(cx.listener(
 6335                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6336                    adjust_open_docks_size_by_px(
 6337                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6338                        workspace,
 6339                        window,
 6340                        cx,
 6341                    );
 6342                },
 6343            ))
 6344            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6345            .on_action(cx.listener(
 6346                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6347                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6348                        let dock = active_dock.read(cx);
 6349                        if let Some(active_panel) = dock.active_panel() {
 6350                            if active_panel.pane(cx).is_none() {
 6351                                let mut recent_pane: Option<Entity<Pane>> = None;
 6352                                let mut recent_timestamp = 0;
 6353                                for pane_handle in workspace.panes() {
 6354                                    let pane = pane_handle.read(cx);
 6355                                    for entry in pane.activation_history() {
 6356                                        if entry.timestamp > recent_timestamp {
 6357                                            recent_timestamp = entry.timestamp;
 6358                                            recent_pane = Some(pane_handle.clone());
 6359                                        }
 6360                                    }
 6361                                }
 6362
 6363                                if let Some(pane) = recent_pane {
 6364                                    pane.update(cx, |pane, cx| {
 6365                                        let current_index = pane.active_item_index();
 6366                                        let items_len = pane.items_len();
 6367                                        if items_len > 0 {
 6368                                            let next_index = if current_index + 1 < items_len {
 6369                                                current_index + 1
 6370                                            } else {
 6371                                                0
 6372                                            };
 6373                                            pane.activate_item(
 6374                                                next_index, false, false, window, cx,
 6375                                            );
 6376                                        }
 6377                                    });
 6378                                    return;
 6379                                }
 6380                            }
 6381                        }
 6382                    }
 6383                    cx.propagate();
 6384                },
 6385            ))
 6386            .on_action(cx.listener(
 6387                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6388                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6389                        let dock = active_dock.read(cx);
 6390                        if let Some(active_panel) = dock.active_panel() {
 6391                            if active_panel.pane(cx).is_none() {
 6392                                let mut recent_pane: Option<Entity<Pane>> = None;
 6393                                let mut recent_timestamp = 0;
 6394                                for pane_handle in workspace.panes() {
 6395                                    let pane = pane_handle.read(cx);
 6396                                    for entry in pane.activation_history() {
 6397                                        if entry.timestamp > recent_timestamp {
 6398                                            recent_timestamp = entry.timestamp;
 6399                                            recent_pane = Some(pane_handle.clone());
 6400                                        }
 6401                                    }
 6402                                }
 6403
 6404                                if let Some(pane) = recent_pane {
 6405                                    pane.update(cx, |pane, cx| {
 6406                                        let current_index = pane.active_item_index();
 6407                                        let items_len = pane.items_len();
 6408                                        if items_len > 0 {
 6409                                            let prev_index = if current_index > 0 {
 6410                                                current_index - 1
 6411                                            } else {
 6412                                                items_len.saturating_sub(1)
 6413                                            };
 6414                                            pane.activate_item(
 6415                                                prev_index, false, false, window, cx,
 6416                                            );
 6417                                        }
 6418                                    });
 6419                                    return;
 6420                                }
 6421                            }
 6422                        }
 6423                    }
 6424                    cx.propagate();
 6425                },
 6426            ))
 6427            .on_action(cx.listener(
 6428                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6429                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6430                        let dock = active_dock.read(cx);
 6431                        if let Some(active_panel) = dock.active_panel() {
 6432                            if active_panel.pane(cx).is_none() {
 6433                                let active_pane = workspace.active_pane().clone();
 6434                                active_pane.update(cx, |pane, cx| {
 6435                                    pane.close_active_item(action, window, cx)
 6436                                        .detach_and_log_err(cx);
 6437                                });
 6438                                return;
 6439                            }
 6440                        }
 6441                    }
 6442                    cx.propagate();
 6443                },
 6444            ))
 6445            .on_action(
 6446                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6447                    let pane = workspace.active_pane().clone();
 6448                    if let Some(item) = pane.read(cx).active_item() {
 6449                        item.toggle_read_only(window, cx);
 6450                    }
 6451                }),
 6452            )
 6453            .on_action(cx.listener(Workspace::cancel))
 6454    }
 6455
 6456    #[cfg(any(test, feature = "test-support"))]
 6457    pub fn set_random_database_id(&mut self) {
 6458        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6459    }
 6460
 6461    #[cfg(any(test, feature = "test-support"))]
 6462    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6463        use node_runtime::NodeRuntime;
 6464        use session::Session;
 6465
 6466        let client = project.read(cx).client();
 6467        let user_store = project.read(cx).user_store();
 6468        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6469        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6470        window.activate_window();
 6471        let app_state = Arc::new(AppState {
 6472            languages: project.read(cx).languages().clone(),
 6473            workspace_store,
 6474            client,
 6475            user_store,
 6476            fs: project.read(cx).fs().clone(),
 6477            build_window_options: |_, _| Default::default(),
 6478            node_runtime: NodeRuntime::unavailable(),
 6479            session,
 6480        });
 6481        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6482        workspace
 6483            .active_pane
 6484            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6485        workspace
 6486    }
 6487
 6488    pub fn register_action<A: Action>(
 6489        &mut self,
 6490        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6491    ) -> &mut Self {
 6492        let callback = Arc::new(callback);
 6493
 6494        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6495            let callback = callback.clone();
 6496            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6497                (callback)(workspace, event, window, cx)
 6498            }))
 6499        }));
 6500        self
 6501    }
 6502    pub fn register_action_renderer(
 6503        &mut self,
 6504        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6505    ) -> &mut Self {
 6506        self.workspace_actions.push(Box::new(callback));
 6507        self
 6508    }
 6509
 6510    fn add_workspace_actions_listeners(
 6511        &self,
 6512        mut div: Div,
 6513        window: &mut Window,
 6514        cx: &mut Context<Self>,
 6515    ) -> Div {
 6516        for action in self.workspace_actions.iter() {
 6517            div = (action)(div, self, window, cx)
 6518        }
 6519        div
 6520    }
 6521
 6522    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6523        self.modal_layer.read(cx).has_active_modal()
 6524    }
 6525
 6526    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6527        self.modal_layer.read(cx).active_modal()
 6528    }
 6529
 6530    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6531    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6532    /// If no modal is active, the new modal will be shown.
 6533    ///
 6534    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6535    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6536    /// will not be shown.
 6537    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6538    where
 6539        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6540    {
 6541        self.modal_layer.update(cx, |modal_layer, cx| {
 6542            modal_layer.toggle_modal(window, cx, build)
 6543        })
 6544    }
 6545
 6546    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6547        self.modal_layer
 6548            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6549    }
 6550
 6551    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6552        self.toast_layer
 6553            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6554    }
 6555
 6556    pub fn toggle_centered_layout(
 6557        &mut self,
 6558        _: &ToggleCenteredLayout,
 6559        _: &mut Window,
 6560        cx: &mut Context<Self>,
 6561    ) {
 6562        self.centered_layout = !self.centered_layout;
 6563        if let Some(database_id) = self.database_id() {
 6564            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6565                .detach_and_log_err(cx);
 6566        }
 6567        cx.notify();
 6568    }
 6569
 6570    fn adjust_padding(padding: Option<f32>) -> f32 {
 6571        padding
 6572            .unwrap_or(CenteredPaddingSettings::default().0)
 6573            .clamp(
 6574                CenteredPaddingSettings::MIN_PADDING,
 6575                CenteredPaddingSettings::MAX_PADDING,
 6576            )
 6577    }
 6578
 6579    fn render_dock(
 6580        &self,
 6581        position: DockPosition,
 6582        dock: &Entity<Dock>,
 6583        window: &mut Window,
 6584        cx: &mut App,
 6585    ) -> Option<Div> {
 6586        if self.zoomed_position == Some(position) {
 6587            return None;
 6588        }
 6589
 6590        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6591            let pane = panel.pane(cx)?;
 6592            let follower_states = &self.follower_states;
 6593            leader_border_for_pane(follower_states, &pane, window, cx)
 6594        });
 6595
 6596        Some(
 6597            div()
 6598                .flex()
 6599                .flex_none()
 6600                .overflow_hidden()
 6601                .child(dock.clone())
 6602                .children(leader_border),
 6603        )
 6604    }
 6605
 6606    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6607        window.root().flatten()
 6608    }
 6609
 6610    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6611        self.zoomed.as_ref()
 6612    }
 6613
 6614    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6615        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6616            return;
 6617        };
 6618        let windows = cx.windows();
 6619        let next_window =
 6620            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6621                || {
 6622                    windows
 6623                        .iter()
 6624                        .cycle()
 6625                        .skip_while(|window| window.window_id() != current_window_id)
 6626                        .nth(1)
 6627                },
 6628            );
 6629
 6630        if let Some(window) = next_window {
 6631            window
 6632                .update(cx, |_, window, _| window.activate_window())
 6633                .ok();
 6634        }
 6635    }
 6636
 6637    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6638        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6639            return;
 6640        };
 6641        let windows = cx.windows();
 6642        let prev_window =
 6643            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6644                || {
 6645                    windows
 6646                        .iter()
 6647                        .rev()
 6648                        .cycle()
 6649                        .skip_while(|window| window.window_id() != current_window_id)
 6650                        .nth(1)
 6651                },
 6652            );
 6653
 6654        if let Some(window) = prev_window {
 6655            window
 6656                .update(cx, |_, window, _| window.activate_window())
 6657                .ok();
 6658        }
 6659    }
 6660
 6661    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6662        if cx.stop_active_drag(window) {
 6663        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6664            dismiss_app_notification(&notification_id, cx);
 6665        } else {
 6666            cx.propagate();
 6667        }
 6668    }
 6669
 6670    fn adjust_dock_size_by_px(
 6671        &mut self,
 6672        panel_size: Pixels,
 6673        dock_pos: DockPosition,
 6674        px: Pixels,
 6675        window: &mut Window,
 6676        cx: &mut Context<Self>,
 6677    ) {
 6678        match dock_pos {
 6679            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6680            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6681            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6682        }
 6683    }
 6684
 6685    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6686        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6687
 6688        self.left_dock.update(cx, |left_dock, cx| {
 6689            if WorkspaceSettings::get_global(cx)
 6690                .resize_all_panels_in_dock
 6691                .contains(&DockPosition::Left)
 6692            {
 6693                left_dock.resize_all_panels(Some(size), window, cx);
 6694            } else {
 6695                left_dock.resize_active_panel(Some(size), window, cx);
 6696            }
 6697        });
 6698        self.clamp_utility_pane_widths(window, cx);
 6699    }
 6700
 6701    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6702        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6703        self.left_dock.read_with(cx, |left_dock, cx| {
 6704            let left_dock_size = left_dock
 6705                .active_panel_size(window, cx)
 6706                .unwrap_or(Pixels::ZERO);
 6707            if left_dock_size + size > self.bounds.right() {
 6708                size = self.bounds.right() - left_dock_size
 6709            }
 6710        });
 6711        self.right_dock.update(cx, |right_dock, cx| {
 6712            if WorkspaceSettings::get_global(cx)
 6713                .resize_all_panels_in_dock
 6714                .contains(&DockPosition::Right)
 6715            {
 6716                right_dock.resize_all_panels(Some(size), window, cx);
 6717            } else {
 6718                right_dock.resize_active_panel(Some(size), window, cx);
 6719            }
 6720        });
 6721        self.clamp_utility_pane_widths(window, cx);
 6722    }
 6723
 6724    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6725        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6726        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6727            if WorkspaceSettings::get_global(cx)
 6728                .resize_all_panels_in_dock
 6729                .contains(&DockPosition::Bottom)
 6730            {
 6731                bottom_dock.resize_all_panels(Some(size), window, cx);
 6732            } else {
 6733                bottom_dock.resize_active_panel(Some(size), window, cx);
 6734            }
 6735        });
 6736        self.clamp_utility_pane_widths(window, cx);
 6737    }
 6738
 6739    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6740        let left_dock_width = self
 6741            .left_dock
 6742            .read(cx)
 6743            .active_panel_size(window, cx)
 6744            .unwrap_or(px(0.0));
 6745        let right_dock_width = self
 6746            .right_dock
 6747            .read(cx)
 6748            .active_panel_size(window, cx)
 6749            .unwrap_or(px(0.0));
 6750        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6751        center_pane_width - px(10.0)
 6752    }
 6753
 6754    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6755        let max_width = self.max_utility_pane_width(window, cx);
 6756
 6757        // Clamp left slot utility pane if it exists
 6758        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6759            let current_width = handle.width(cx);
 6760            if current_width > max_width {
 6761                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6762            }
 6763        }
 6764
 6765        // Clamp right slot utility pane if it exists
 6766        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6767            let current_width = handle.width(cx);
 6768            if current_width > max_width {
 6769                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6770            }
 6771        }
 6772    }
 6773
 6774    fn toggle_edit_predictions_all_files(
 6775        &mut self,
 6776        _: &ToggleEditPrediction,
 6777        _window: &mut Window,
 6778        cx: &mut Context<Self>,
 6779    ) {
 6780        let fs = self.project().read(cx).fs().clone();
 6781        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6782        update_settings_file(fs, cx, move |file, _| {
 6783            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6784        });
 6785    }
 6786
 6787    pub fn show_worktree_trust_security_modal(
 6788        &mut self,
 6789        toggle: bool,
 6790        window: &mut Window,
 6791        cx: &mut Context<Self>,
 6792    ) {
 6793        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6794            if toggle {
 6795                security_modal.update(cx, |security_modal, cx| {
 6796                    security_modal.dismiss(cx);
 6797                })
 6798            } else {
 6799                security_modal.update(cx, |security_modal, cx| {
 6800                    security_modal.refresh_restricted_paths(cx);
 6801                });
 6802            }
 6803        } else {
 6804            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6805                .map(|trusted_worktrees| {
 6806                    trusted_worktrees
 6807                        .read(cx)
 6808                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6809                })
 6810                .unwrap_or(false);
 6811            if has_restricted_worktrees {
 6812                let project = self.project().read(cx);
 6813                let remote_host = project
 6814                    .remote_connection_options(cx)
 6815                    .map(RemoteHostLocation::from);
 6816                let worktree_store = project.worktree_store().downgrade();
 6817                self.toggle_modal(window, cx, |_, cx| {
 6818                    SecurityModal::new(worktree_store, remote_host, cx)
 6819                });
 6820            }
 6821        }
 6822    }
 6823}
 6824
 6825fn leader_border_for_pane(
 6826    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6827    pane: &Entity<Pane>,
 6828    _: &Window,
 6829    cx: &App,
 6830) -> Option<Div> {
 6831    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6832        if state.pane() == pane {
 6833            Some((*leader_id, state))
 6834        } else {
 6835            None
 6836        }
 6837    })?;
 6838
 6839    let mut leader_color = match leader_id {
 6840        CollaboratorId::PeerId(leader_peer_id) => {
 6841            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6842            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6843
 6844            cx.theme()
 6845                .players()
 6846                .color_for_participant(leader.participant_index.0)
 6847                .cursor
 6848        }
 6849        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6850    };
 6851    leader_color.fade_out(0.3);
 6852    Some(
 6853        div()
 6854            .absolute()
 6855            .size_full()
 6856            .left_0()
 6857            .top_0()
 6858            .border_2()
 6859            .border_color(leader_color),
 6860    )
 6861}
 6862
 6863fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6864    ZED_WINDOW_POSITION
 6865        .zip(*ZED_WINDOW_SIZE)
 6866        .map(|(position, size)| Bounds {
 6867            origin: position,
 6868            size,
 6869        })
 6870}
 6871
 6872fn open_items(
 6873    serialized_workspace: Option<SerializedWorkspace>,
 6874    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6875    window: &mut Window,
 6876    cx: &mut Context<Workspace>,
 6877) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6878    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6879        Workspace::load_workspace(
 6880            serialized_workspace,
 6881            project_paths_to_open
 6882                .iter()
 6883                .map(|(_, project_path)| project_path)
 6884                .cloned()
 6885                .collect(),
 6886            window,
 6887            cx,
 6888        )
 6889    });
 6890
 6891    cx.spawn_in(window, async move |workspace, cx| {
 6892        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6893
 6894        if let Some(restored_items) = restored_items {
 6895            let restored_items = restored_items.await?;
 6896
 6897            let restored_project_paths = restored_items
 6898                .iter()
 6899                .filter_map(|item| {
 6900                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6901                        .ok()
 6902                        .flatten()
 6903                })
 6904                .collect::<HashSet<_>>();
 6905
 6906            for restored_item in restored_items {
 6907                opened_items.push(restored_item.map(Ok));
 6908            }
 6909
 6910            project_paths_to_open
 6911                .iter_mut()
 6912                .for_each(|(_, project_path)| {
 6913                    if let Some(project_path_to_open) = project_path
 6914                        && restored_project_paths.contains(project_path_to_open)
 6915                    {
 6916                        *project_path = None;
 6917                    }
 6918                });
 6919        } else {
 6920            for _ in 0..project_paths_to_open.len() {
 6921                opened_items.push(None);
 6922            }
 6923        }
 6924        assert!(opened_items.len() == project_paths_to_open.len());
 6925
 6926        let tasks =
 6927            project_paths_to_open
 6928                .into_iter()
 6929                .enumerate()
 6930                .map(|(ix, (abs_path, project_path))| {
 6931                    let workspace = workspace.clone();
 6932                    cx.spawn(async move |cx| {
 6933                        let file_project_path = project_path?;
 6934                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6935                            workspace.project().update(cx, |project, cx| {
 6936                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6937                            })
 6938                        });
 6939
 6940                        // We only want to open file paths here. If one of the items
 6941                        // here is a directory, it was already opened further above
 6942                        // with a `find_or_create_worktree`.
 6943                        if let Ok(task) = abs_path_task
 6944                            && task.await.is_none_or(|p| p.is_file())
 6945                        {
 6946                            return Some((
 6947                                ix,
 6948                                workspace
 6949                                    .update_in(cx, |workspace, window, cx| {
 6950                                        workspace.open_path(
 6951                                            file_project_path,
 6952                                            None,
 6953                                            true,
 6954                                            window,
 6955                                            cx,
 6956                                        )
 6957                                    })
 6958                                    .log_err()?
 6959                                    .await,
 6960                            ));
 6961                        }
 6962                        None
 6963                    })
 6964                });
 6965
 6966        let tasks = tasks.collect::<Vec<_>>();
 6967
 6968        let tasks = futures::future::join_all(tasks);
 6969        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6970            opened_items[ix] = Some(path_open_result);
 6971        }
 6972
 6973        Ok(opened_items)
 6974    })
 6975}
 6976
 6977enum ActivateInDirectionTarget {
 6978    Pane(Entity<Pane>),
 6979    Dock(Entity<Dock>),
 6980}
 6981
 6982fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6983    workspace
 6984        .update(cx, |workspace, _, cx| {
 6985            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6986                struct DatabaseFailedNotification;
 6987
 6988                workspace.show_notification(
 6989                    NotificationId::unique::<DatabaseFailedNotification>(),
 6990                    cx,
 6991                    |cx| {
 6992                        cx.new(|cx| {
 6993                            MessageNotification::new("Failed to load the database file.", cx)
 6994                                .primary_message("File an Issue")
 6995                                .primary_icon(IconName::Plus)
 6996                                .primary_on_click(|window, cx| {
 6997                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6998                                })
 6999                        })
 7000                    },
 7001                );
 7002            }
 7003        })
 7004        .log_err();
 7005}
 7006
 7007fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7008    if val == 0 {
 7009        ThemeSettings::get_global(cx).ui_font_size(cx)
 7010    } else {
 7011        px(val as f32)
 7012    }
 7013}
 7014
 7015fn adjust_active_dock_size_by_px(
 7016    px: Pixels,
 7017    workspace: &mut Workspace,
 7018    window: &mut Window,
 7019    cx: &mut Context<Workspace>,
 7020) {
 7021    let Some(active_dock) = workspace
 7022        .all_docks()
 7023        .into_iter()
 7024        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7025    else {
 7026        return;
 7027    };
 7028    let dock = active_dock.read(cx);
 7029    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7030        return;
 7031    };
 7032    let dock_pos = dock.position();
 7033    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7034}
 7035
 7036fn adjust_open_docks_size_by_px(
 7037    px: Pixels,
 7038    workspace: &mut Workspace,
 7039    window: &mut Window,
 7040    cx: &mut Context<Workspace>,
 7041) {
 7042    let docks = workspace
 7043        .all_docks()
 7044        .into_iter()
 7045        .filter_map(|dock| {
 7046            if dock.read(cx).is_open() {
 7047                let dock = dock.read(cx);
 7048                let panel_size = dock.active_panel_size(window, cx)?;
 7049                let dock_pos = dock.position();
 7050                Some((panel_size, dock_pos, px))
 7051            } else {
 7052                None
 7053            }
 7054        })
 7055        .collect::<Vec<_>>();
 7056
 7057    docks
 7058        .into_iter()
 7059        .for_each(|(panel_size, dock_pos, offset)| {
 7060            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7061        });
 7062}
 7063
 7064impl Focusable for Workspace {
 7065    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7066        self.active_pane.focus_handle(cx)
 7067    }
 7068}
 7069
 7070#[derive(Clone)]
 7071struct DraggedDock(DockPosition);
 7072
 7073impl Render for DraggedDock {
 7074    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7075        gpui::Empty
 7076    }
 7077}
 7078
 7079impl Render for Workspace {
 7080    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7081        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7082        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7083            log::info!("Rendered first frame");
 7084        }
 7085        let mut context = KeyContext::new_with_defaults();
 7086        context.add("Workspace");
 7087        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 7088        if let Some(status) = self
 7089            .debugger_provider
 7090            .as_ref()
 7091            .and_then(|provider| provider.active_thread_state(cx))
 7092        {
 7093            match status {
 7094                ThreadStatus::Running | ThreadStatus::Stepping => {
 7095                    context.add("debugger_running");
 7096                }
 7097                ThreadStatus::Stopped => context.add("debugger_stopped"),
 7098                ThreadStatus::Exited | ThreadStatus::Ended => {}
 7099            }
 7100        }
 7101
 7102        if self.left_dock.read(cx).is_open() {
 7103            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 7104                context.set("left_dock", active_panel.panel_key());
 7105            }
 7106        }
 7107
 7108        if self.right_dock.read(cx).is_open() {
 7109            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 7110                context.set("right_dock", active_panel.panel_key());
 7111            }
 7112        }
 7113
 7114        if self.bottom_dock.read(cx).is_open() {
 7115            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 7116                context.set("bottom_dock", active_panel.panel_key());
 7117            }
 7118        }
 7119
 7120        let centered_layout = self.centered_layout
 7121            && self.center.panes().len() == 1
 7122            && self.active_item(cx).is_some();
 7123        let render_padding = |size| {
 7124            (size > 0.0).then(|| {
 7125                div()
 7126                    .h_full()
 7127                    .w(relative(size))
 7128                    .bg(cx.theme().colors().editor_background)
 7129                    .border_color(cx.theme().colors().pane_group_border)
 7130            })
 7131        };
 7132        let paddings = if centered_layout {
 7133            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7134            (
 7135                render_padding(Self::adjust_padding(
 7136                    settings.left_padding.map(|padding| padding.0),
 7137                )),
 7138                render_padding(Self::adjust_padding(
 7139                    settings.right_padding.map(|padding| padding.0),
 7140                )),
 7141            )
 7142        } else {
 7143            (None, None)
 7144        };
 7145        let ui_font = theme::setup_ui_font(window, cx);
 7146
 7147        let theme = cx.theme().clone();
 7148        let colors = theme.colors();
 7149        let notification_entities = self
 7150            .notifications
 7151            .iter()
 7152            .map(|(_, notification)| notification.entity_id())
 7153            .collect::<Vec<_>>();
 7154        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7155
 7156        client_side_decorations(
 7157            self.actions(div(), window, cx)
 7158                .key_context(context)
 7159                .relative()
 7160                .size_full()
 7161                .flex()
 7162                .flex_col()
 7163                .font(ui_font)
 7164                .gap_0()
 7165                .justify_start()
 7166                .items_start()
 7167                .text_color(colors.text)
 7168                .overflow_hidden()
 7169                .children(self.titlebar_item.clone())
 7170                .on_modifiers_changed(move |_, _, cx| {
 7171                    for &id in &notification_entities {
 7172                        cx.notify(id);
 7173                    }
 7174                })
 7175                .child(
 7176                    div()
 7177                        .size_full()
 7178                        .relative()
 7179                        .flex_1()
 7180                        .flex()
 7181                        .flex_col()
 7182                        .child(
 7183                            div()
 7184                                .id("workspace")
 7185                                .bg(colors.background)
 7186                                .relative()
 7187                                .flex_1()
 7188                                .w_full()
 7189                                .flex()
 7190                                .flex_col()
 7191                                .overflow_hidden()
 7192                                .border_t_1()
 7193                                .border_b_1()
 7194                                .border_color(colors.border)
 7195                                .child({
 7196                                    let this = cx.entity();
 7197                                    canvas(
 7198                                        move |bounds, window, cx| {
 7199                                            this.update(cx, |this, cx| {
 7200                                                let bounds_changed = this.bounds != bounds;
 7201                                                this.bounds = bounds;
 7202
 7203                                                if bounds_changed {
 7204                                                    this.left_dock.update(cx, |dock, cx| {
 7205                                                        dock.clamp_panel_size(
 7206                                                            bounds.size.width,
 7207                                                            window,
 7208                                                            cx,
 7209                                                        )
 7210                                                    });
 7211
 7212                                                    this.right_dock.update(cx, |dock, cx| {
 7213                                                        dock.clamp_panel_size(
 7214                                                            bounds.size.width,
 7215                                                            window,
 7216                                                            cx,
 7217                                                        )
 7218                                                    });
 7219
 7220                                                    this.bottom_dock.update(cx, |dock, cx| {
 7221                                                        dock.clamp_panel_size(
 7222                                                            bounds.size.height,
 7223                                                            window,
 7224                                                            cx,
 7225                                                        )
 7226                                                    });
 7227                                                }
 7228                                            })
 7229                                        },
 7230                                        |_, _, _, _| {},
 7231                                    )
 7232                                    .absolute()
 7233                                    .size_full()
 7234                                })
 7235                                .when(self.zoomed.is_none(), |this| {
 7236                                    this.on_drag_move(cx.listener(
 7237                                        move |workspace,
 7238                                              e: &DragMoveEvent<DraggedDock>,
 7239                                              window,
 7240                                              cx| {
 7241                                            if workspace.previous_dock_drag_coordinates
 7242                                                != Some(e.event.position)
 7243                                            {
 7244                                                workspace.previous_dock_drag_coordinates =
 7245                                                    Some(e.event.position);
 7246                                                match e.drag(cx).0 {
 7247                                                    DockPosition::Left => {
 7248                                                        workspace.resize_left_dock(
 7249                                                            e.event.position.x
 7250                                                                - workspace.bounds.left(),
 7251                                                            window,
 7252                                                            cx,
 7253                                                        );
 7254                                                    }
 7255                                                    DockPosition::Right => {
 7256                                                        workspace.resize_right_dock(
 7257                                                            workspace.bounds.right()
 7258                                                                - e.event.position.x,
 7259                                                            window,
 7260                                                            cx,
 7261                                                        );
 7262                                                    }
 7263                                                    DockPosition::Bottom => {
 7264                                                        workspace.resize_bottom_dock(
 7265                                                            workspace.bounds.bottom()
 7266                                                                - e.event.position.y,
 7267                                                            window,
 7268                                                            cx,
 7269                                                        );
 7270                                                    }
 7271                                                };
 7272                                                workspace.serialize_workspace(window, cx);
 7273                                            }
 7274                                        },
 7275                                    ))
 7276                                    .on_drag_move(cx.listener(
 7277                                        move |workspace,
 7278                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7279                                              window,
 7280                                              cx| {
 7281                                            let slot = e.drag(cx).0;
 7282                                            match slot {
 7283                                                UtilityPaneSlot::Left => {
 7284                                                    let left_dock_width = workspace.left_dock.read(cx)
 7285                                                        .active_panel_size(window, cx)
 7286                                                        .unwrap_or(gpui::px(0.0));
 7287                                                    let new_width = e.event.position.x
 7288                                                        - workspace.bounds.left()
 7289                                                        - left_dock_width;
 7290                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7291                                                }
 7292                                                UtilityPaneSlot::Right => {
 7293                                                    let right_dock_width = workspace.right_dock.read(cx)
 7294                                                        .active_panel_size(window, cx)
 7295                                                        .unwrap_or(gpui::px(0.0));
 7296                                                    let new_width = workspace.bounds.right()
 7297                                                        - e.event.position.x
 7298                                                        - right_dock_width;
 7299                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7300                                                }
 7301                                            }
 7302                                        },
 7303                                    ))
 7304                                })
 7305                                .child({
 7306                                    match bottom_dock_layout {
 7307                                        BottomDockLayout::Full => div()
 7308                                            .flex()
 7309                                            .flex_col()
 7310                                            .h_full()
 7311                                            .child(
 7312                                                div()
 7313                                                    .flex()
 7314                                                    .flex_row()
 7315                                                    .flex_1()
 7316                                                    .overflow_hidden()
 7317                                                    .children(self.render_dock(
 7318                                                        DockPosition::Left,
 7319                                                        &self.left_dock,
 7320                                                        window,
 7321                                                        cx,
 7322                                                    ))
 7323                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7324                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7325                                                            this.when(pane.expanded(cx), |this| {
 7326                                                                this.child(
 7327                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7328                                                                )
 7329                                                            })
 7330                                                        })
 7331                                                    })
 7332                                                    .child(
 7333                                                        div()
 7334                                                            .flex()
 7335                                                            .flex_col()
 7336                                                            .flex_1()
 7337                                                            .overflow_hidden()
 7338                                                            .child(
 7339                                                                h_flex()
 7340                                                                    .flex_1()
 7341                                                                    .when_some(
 7342                                                                        paddings.0,
 7343                                                                        |this, p| {
 7344                                                                            this.child(
 7345                                                                                p.border_r_1(),
 7346                                                                            )
 7347                                                                        },
 7348                                                                    )
 7349                                                                    .child(self.center.render(
 7350                                                                        self.zoomed.as_ref(),
 7351                                                                        &PaneRenderContext {
 7352                                                                            follower_states:
 7353                                                                                &self.follower_states,
 7354                                                                            active_call: self.active_call(),
 7355                                                                            active_pane: &self.active_pane,
 7356                                                                            app_state: &self.app_state,
 7357                                                                            project: &self.project,
 7358                                                                            workspace: &self.weak_self,
 7359                                                                        },
 7360                                                                        window,
 7361                                                                        cx,
 7362                                                                    ))
 7363                                                                    .when_some(
 7364                                                                        paddings.1,
 7365                                                                        |this, p| {
 7366                                                                            this.child(
 7367                                                                                p.border_l_1(),
 7368                                                                            )
 7369                                                                        },
 7370                                                                    ),
 7371                                                            ),
 7372                                                    )
 7373                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7374                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7375                                                            this.when(pane.expanded(cx), |this| {
 7376                                                                this.child(
 7377                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7378                                                                )
 7379                                                            })
 7380                                                        })
 7381                                                    })
 7382                                                    .children(self.render_dock(
 7383                                                        DockPosition::Right,
 7384                                                        &self.right_dock,
 7385                                                        window,
 7386                                                        cx,
 7387                                                    )),
 7388                                            )
 7389                                            .child(div().w_full().children(self.render_dock(
 7390                                                DockPosition::Bottom,
 7391                                                &self.bottom_dock,
 7392                                                window,
 7393                                                cx
 7394                                            ))),
 7395
 7396                                        BottomDockLayout::LeftAligned => div()
 7397                                            .flex()
 7398                                            .flex_row()
 7399                                            .h_full()
 7400                                            .child(
 7401                                                div()
 7402                                                    .flex()
 7403                                                    .flex_col()
 7404                                                    .flex_1()
 7405                                                    .h_full()
 7406                                                    .child(
 7407                                                        div()
 7408                                                            .flex()
 7409                                                            .flex_row()
 7410                                                            .flex_1()
 7411                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7412                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7413                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7414                                                                    this.when(pane.expanded(cx), |this| {
 7415                                                                        this.child(
 7416                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7417                                                                        )
 7418                                                                    })
 7419                                                                })
 7420                                                            })
 7421                                                            .child(
 7422                                                                div()
 7423                                                                    .flex()
 7424                                                                    .flex_col()
 7425                                                                    .flex_1()
 7426                                                                    .overflow_hidden()
 7427                                                                    .child(
 7428                                                                        h_flex()
 7429                                                                            .flex_1()
 7430                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7431                                                                            .child(self.center.render(
 7432                                                                                self.zoomed.as_ref(),
 7433                                                                                &PaneRenderContext {
 7434                                                                                    follower_states:
 7435                                                                                        &self.follower_states,
 7436                                                                                    active_call: self.active_call(),
 7437                                                                                    active_pane: &self.active_pane,
 7438                                                                                    app_state: &self.app_state,
 7439                                                                                    project: &self.project,
 7440                                                                                    workspace: &self.weak_self,
 7441                                                                                },
 7442                                                                                window,
 7443                                                                                cx,
 7444                                                                            ))
 7445                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7446                                                                    )
 7447                                                            )
 7448                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7449                                                                this.when(pane.expanded(cx), |this| {
 7450                                                                    this.child(
 7451                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7452                                                                    )
 7453                                                                })
 7454                                                            })
 7455                                                    )
 7456                                                    .child(
 7457                                                        div()
 7458                                                            .w_full()
 7459                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7460                                                    ),
 7461                                            )
 7462                                            .children(self.render_dock(
 7463                                                DockPosition::Right,
 7464                                                &self.right_dock,
 7465                                                window,
 7466                                                cx,
 7467                                            )),
 7468
 7469                                        BottomDockLayout::RightAligned => div()
 7470                                            .flex()
 7471                                            .flex_row()
 7472                                            .h_full()
 7473                                            .children(self.render_dock(
 7474                                                DockPosition::Left,
 7475                                                &self.left_dock,
 7476                                                window,
 7477                                                cx,
 7478                                            ))
 7479                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7480                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7481                                                    this.when(pane.expanded(cx), |this| {
 7482                                                        this.child(
 7483                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7484                                                        )
 7485                                                    })
 7486                                                })
 7487                                            })
 7488                                            .child(
 7489                                                div()
 7490                                                    .flex()
 7491                                                    .flex_col()
 7492                                                    .flex_1()
 7493                                                    .h_full()
 7494                                                    .child(
 7495                                                        div()
 7496                                                            .flex()
 7497                                                            .flex_row()
 7498                                                            .flex_1()
 7499                                                            .child(
 7500                                                                div()
 7501                                                                    .flex()
 7502                                                                    .flex_col()
 7503                                                                    .flex_1()
 7504                                                                    .overflow_hidden()
 7505                                                                    .child(
 7506                                                                        h_flex()
 7507                                                                            .flex_1()
 7508                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7509                                                                            .child(self.center.render(
 7510                                                                                self.zoomed.as_ref(),
 7511                                                                                &PaneRenderContext {
 7512                                                                                    follower_states:
 7513                                                                                        &self.follower_states,
 7514                                                                                    active_call: self.active_call(),
 7515                                                                                    active_pane: &self.active_pane,
 7516                                                                                    app_state: &self.app_state,
 7517                                                                                    project: &self.project,
 7518                                                                                    workspace: &self.weak_self,
 7519                                                                                },
 7520                                                                                window,
 7521                                                                                cx,
 7522                                                                            ))
 7523                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7524                                                                    )
 7525                                                            )
 7526                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7527                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7528                                                                    this.when(pane.expanded(cx), |this| {
 7529                                                                        this.child(
 7530                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7531                                                                        )
 7532                                                                    })
 7533                                                                })
 7534                                                            })
 7535                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7536                                                    )
 7537                                                    .child(
 7538                                                        div()
 7539                                                            .w_full()
 7540                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7541                                                    ),
 7542                                            ),
 7543
 7544                                        BottomDockLayout::Contained => div()
 7545                                            .flex()
 7546                                            .flex_row()
 7547                                            .h_full()
 7548                                            .children(self.render_dock(
 7549                                                DockPosition::Left,
 7550                                                &self.left_dock,
 7551                                                window,
 7552                                                cx,
 7553                                            ))
 7554                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7555                                                this.when(pane.expanded(cx), |this| {
 7556                                                    this.child(
 7557                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7558                                                    )
 7559                                                })
 7560                                            })
 7561                                            .child(
 7562                                                div()
 7563                                                    .flex()
 7564                                                    .flex_col()
 7565                                                    .flex_1()
 7566                                                    .overflow_hidden()
 7567                                                    .child(
 7568                                                        h_flex()
 7569                                                            .flex_1()
 7570                                                            .when_some(paddings.0, |this, p| {
 7571                                                                this.child(p.border_r_1())
 7572                                                            })
 7573                                                            .child(self.center.render(
 7574                                                                self.zoomed.as_ref(),
 7575                                                                &PaneRenderContext {
 7576                                                                    follower_states:
 7577                                                                        &self.follower_states,
 7578                                                                    active_call: self.active_call(),
 7579                                                                    active_pane: &self.active_pane,
 7580                                                                    app_state: &self.app_state,
 7581                                                                    project: &self.project,
 7582                                                                    workspace: &self.weak_self,
 7583                                                                },
 7584                                                                window,
 7585                                                                cx,
 7586                                                            ))
 7587                                                            .when_some(paddings.1, |this, p| {
 7588                                                                this.child(p.border_l_1())
 7589                                                            }),
 7590                                                    )
 7591                                                    .children(self.render_dock(
 7592                                                        DockPosition::Bottom,
 7593                                                        &self.bottom_dock,
 7594                                                        window,
 7595                                                        cx,
 7596                                                    )),
 7597                                            )
 7598                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7599                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7600                                                    this.when(pane.expanded(cx), |this| {
 7601                                                        this.child(
 7602                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7603                                                        )
 7604                                                    })
 7605                                                })
 7606                                            })
 7607                                            .children(self.render_dock(
 7608                                                DockPosition::Right,
 7609                                                &self.right_dock,
 7610                                                window,
 7611                                                cx,
 7612                                            )),
 7613                                    }
 7614                                })
 7615                                .children(self.zoomed.as_ref().and_then(|view| {
 7616                                    let zoomed_view = view.upgrade()?;
 7617                                    let div = div()
 7618                                        .occlude()
 7619                                        .absolute()
 7620                                        .overflow_hidden()
 7621                                        .border_color(colors.border)
 7622                                        .bg(colors.background)
 7623                                        .child(zoomed_view)
 7624                                        .inset_0()
 7625                                        .shadow_lg();
 7626
 7627                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7628                                       return Some(div);
 7629                                    }
 7630
 7631                                    Some(match self.zoomed_position {
 7632                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7633                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7634                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7635                                        None => {
 7636                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7637                                        }
 7638                                    })
 7639                                }))
 7640                                .children(self.render_notifications(window, cx)),
 7641                        )
 7642                        .when(self.status_bar_visible(cx), |parent| {
 7643                            parent.child(self.status_bar.clone())
 7644                        })
 7645                        .child(self.modal_layer.clone())
 7646                        .child(self.toast_layer.clone()),
 7647                ),
 7648            window,
 7649            cx,
 7650        )
 7651    }
 7652}
 7653
 7654impl WorkspaceStore {
 7655    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7656        Self {
 7657            workspaces: Default::default(),
 7658            _subscriptions: vec![
 7659                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7660                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7661            ],
 7662            client,
 7663        }
 7664    }
 7665
 7666    pub fn update_followers(
 7667        &self,
 7668        project_id: Option<u64>,
 7669        update: proto::update_followers::Variant,
 7670        cx: &App,
 7671    ) -> Option<()> {
 7672        let active_call = ActiveCall::try_global(cx)?;
 7673        let room_id = active_call.read(cx).room()?.read(cx).id();
 7674        self.client
 7675            .send(proto::UpdateFollowers {
 7676                room_id,
 7677                project_id,
 7678                variant: Some(update),
 7679            })
 7680            .log_err()
 7681    }
 7682
 7683    pub async fn handle_follow(
 7684        this: Entity<Self>,
 7685        envelope: TypedEnvelope<proto::Follow>,
 7686        mut cx: AsyncApp,
 7687    ) -> Result<proto::FollowResponse> {
 7688        this.update(&mut cx, |this, cx| {
 7689            let follower = Follower {
 7690                project_id: envelope.payload.project_id,
 7691                peer_id: envelope.original_sender_id()?,
 7692            };
 7693
 7694            let mut response = proto::FollowResponse::default();
 7695            this.workspaces.retain(|workspace| {
 7696                workspace
 7697                    .update(cx, |workspace, window, cx| {
 7698                        let handler_response =
 7699                            workspace.handle_follow(follower.project_id, window, cx);
 7700                        if let Some(active_view) = handler_response.active_view
 7701                            && workspace.project.read(cx).remote_id() == follower.project_id
 7702                        {
 7703                            response.active_view = Some(active_view)
 7704                        }
 7705                    })
 7706                    .is_ok()
 7707            });
 7708
 7709            Ok(response)
 7710        })
 7711    }
 7712
 7713    async fn handle_update_followers(
 7714        this: Entity<Self>,
 7715        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7716        mut cx: AsyncApp,
 7717    ) -> Result<()> {
 7718        let leader_id = envelope.original_sender_id()?;
 7719        let update = envelope.payload;
 7720
 7721        this.update(&mut cx, |this, cx| {
 7722            this.workspaces.retain(|workspace| {
 7723                workspace
 7724                    .update(cx, |workspace, window, cx| {
 7725                        let project_id = workspace.project.read(cx).remote_id();
 7726                        if update.project_id != project_id && update.project_id.is_some() {
 7727                            return;
 7728                        }
 7729                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7730                    })
 7731                    .is_ok()
 7732            });
 7733            Ok(())
 7734        })
 7735    }
 7736
 7737    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7738        &self.workspaces
 7739    }
 7740}
 7741
 7742impl ViewId {
 7743    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7744        Ok(Self {
 7745            creator: message
 7746                .creator
 7747                .map(CollaboratorId::PeerId)
 7748                .context("creator is missing")?,
 7749            id: message.id,
 7750        })
 7751    }
 7752
 7753    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7754        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7755            Some(proto::ViewId {
 7756                creator: Some(peer_id),
 7757                id: self.id,
 7758            })
 7759        } else {
 7760            None
 7761        }
 7762    }
 7763}
 7764
 7765impl FollowerState {
 7766    fn pane(&self) -> &Entity<Pane> {
 7767        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7768    }
 7769}
 7770
 7771pub trait WorkspaceHandle {
 7772    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7773}
 7774
 7775impl WorkspaceHandle for Entity<Workspace> {
 7776    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7777        self.read(cx)
 7778            .worktrees(cx)
 7779            .flat_map(|worktree| {
 7780                let worktree_id = worktree.read(cx).id();
 7781                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7782                    worktree_id,
 7783                    path: f.path.clone(),
 7784                })
 7785            })
 7786            .collect::<Vec<_>>()
 7787    }
 7788}
 7789
 7790pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7791    DB.last_workspace().await.log_err().flatten()
 7792}
 7793
 7794pub fn last_session_workspace_locations(
 7795    last_session_id: &str,
 7796    last_session_window_stack: Option<Vec<WindowId>>,
 7797) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7798    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7799        .log_err()
 7800}
 7801
 7802actions!(
 7803    collab,
 7804    [
 7805        /// Opens the channel notes for the current call.
 7806        ///
 7807        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7808        /// channel in the collab panel.
 7809        ///
 7810        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7811        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7812        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7813        OpenChannelNotes,
 7814        /// Mutes your microphone.
 7815        Mute,
 7816        /// Deafens yourself (mute both microphone and speakers).
 7817        Deafen,
 7818        /// Leaves the current call.
 7819        LeaveCall,
 7820        /// Shares the current project with collaborators.
 7821        ShareProject,
 7822        /// Shares your screen with collaborators.
 7823        ScreenShare,
 7824        /// Copies the current room name and session id for debugging purposes.
 7825        CopyRoomId,
 7826    ]
 7827);
 7828actions!(
 7829    zed,
 7830    [
 7831        /// Opens the Zed log file.
 7832        OpenLog,
 7833        /// Reveals the Zed log file in the system file manager.
 7834        RevealLogInFileManager
 7835    ]
 7836);
 7837
 7838async fn join_channel_internal(
 7839    channel_id: ChannelId,
 7840    app_state: &Arc<AppState>,
 7841    requesting_window: Option<WindowHandle<Workspace>>,
 7842    active_call: &Entity<ActiveCall>,
 7843    cx: &mut AsyncApp,
 7844) -> Result<bool> {
 7845    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7846        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7847            return (false, None);
 7848        };
 7849
 7850        let already_in_channel = room.channel_id() == Some(channel_id);
 7851        let should_prompt = room.is_sharing_project()
 7852            && !room.remote_participants().is_empty()
 7853            && !already_in_channel;
 7854        let open_room = if already_in_channel {
 7855            active_call.room().cloned()
 7856        } else {
 7857            None
 7858        };
 7859        (should_prompt, open_room)
 7860    });
 7861
 7862    if let Some(room) = open_room {
 7863        let task = room.update(cx, |room, cx| {
 7864            if let Some((project, host)) = room.most_active_project(cx) {
 7865                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7866            }
 7867
 7868            None
 7869        });
 7870        if let Some(task) = task {
 7871            task.await?;
 7872        }
 7873        return anyhow::Ok(true);
 7874    }
 7875
 7876    if should_prompt {
 7877        if let Some(workspace) = requesting_window {
 7878            let answer = workspace
 7879                .update(cx, |_, window, cx| {
 7880                    window.prompt(
 7881                        PromptLevel::Warning,
 7882                        "Do you want to switch channels?",
 7883                        Some("Leaving this call will unshare your current project."),
 7884                        &["Yes, Join Channel", "Cancel"],
 7885                        cx,
 7886                    )
 7887                })?
 7888                .await;
 7889
 7890            if answer == Ok(1) {
 7891                return Ok(false);
 7892            }
 7893        } else {
 7894            return Ok(false); // unreachable!() hopefully
 7895        }
 7896    }
 7897
 7898    let client = cx.update(|cx| active_call.read(cx).client());
 7899
 7900    let mut client_status = client.status();
 7901
 7902    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7903    'outer: loop {
 7904        let Some(status) = client_status.recv().await else {
 7905            anyhow::bail!("error connecting");
 7906        };
 7907
 7908        match status {
 7909            Status::Connecting
 7910            | Status::Authenticating
 7911            | Status::Authenticated
 7912            | Status::Reconnecting
 7913            | Status::Reauthenticating
 7914            | Status::Reauthenticated => continue,
 7915            Status::Connected { .. } => break 'outer,
 7916            Status::SignedOut | Status::AuthenticationError => {
 7917                return Err(ErrorCode::SignedOut.into());
 7918            }
 7919            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7920            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7921                return Err(ErrorCode::Disconnected.into());
 7922            }
 7923        }
 7924    }
 7925
 7926    let room = active_call
 7927        .update(cx, |active_call, cx| {
 7928            active_call.join_channel(channel_id, cx)
 7929        })
 7930        .await?;
 7931
 7932    let Some(room) = room else {
 7933        return anyhow::Ok(true);
 7934    };
 7935
 7936    room.update(cx, |room, _| room.room_update_completed())
 7937        .await;
 7938
 7939    let task = room.update(cx, |room, cx| {
 7940        if let Some((project, host)) = room.most_active_project(cx) {
 7941            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7942        }
 7943
 7944        // If you are the first to join a channel, see if you should share your project.
 7945        if room.remote_participants().is_empty()
 7946            && !room.local_participant_is_guest()
 7947            && let Some(workspace) = requesting_window
 7948        {
 7949            let project = workspace.update(cx, |workspace, _, cx| {
 7950                let project = workspace.project.read(cx);
 7951
 7952                if !CallSettings::get_global(cx).share_on_join {
 7953                    return None;
 7954                }
 7955
 7956                if (project.is_local() || project.is_via_remote_server())
 7957                    && project.visible_worktrees(cx).any(|tree| {
 7958                        tree.read(cx)
 7959                            .root_entry()
 7960                            .is_some_and(|entry| entry.is_dir())
 7961                    })
 7962                {
 7963                    Some(workspace.project.clone())
 7964                } else {
 7965                    None
 7966                }
 7967            });
 7968            if let Ok(Some(project)) = project {
 7969                return Some(cx.spawn(async move |room, cx| {
 7970                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7971                        .await?;
 7972                    Ok(())
 7973                }));
 7974            }
 7975        }
 7976
 7977        None
 7978    });
 7979    if let Some(task) = task {
 7980        task.await?;
 7981        return anyhow::Ok(true);
 7982    }
 7983    anyhow::Ok(false)
 7984}
 7985
 7986pub fn join_channel(
 7987    channel_id: ChannelId,
 7988    app_state: Arc<AppState>,
 7989    requesting_window: Option<WindowHandle<Workspace>>,
 7990    cx: &mut App,
 7991) -> Task<Result<()>> {
 7992    let active_call = ActiveCall::global(cx);
 7993    cx.spawn(async move |cx| {
 7994        let result =
 7995            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7996                .await;
 7997
 7998        // join channel succeeded, and opened a window
 7999        if matches!(result, Ok(true)) {
 8000            return anyhow::Ok(());
 8001        }
 8002
 8003        // find an existing workspace to focus and show call controls
 8004        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8005        if active_window.is_none() {
 8006            // no open workspaces, make one to show the error in (blergh)
 8007            let (window_handle, _) = cx
 8008                .update(|cx| {
 8009                    Workspace::new_local(
 8010                        vec![],
 8011                        app_state.clone(),
 8012                        requesting_window,
 8013                        None,
 8014                        None,
 8015                        cx,
 8016                    )
 8017                })
 8018                .await?;
 8019
 8020            if result.is_ok() {
 8021                cx.update(|cx| {
 8022                    cx.dispatch_action(&OpenChannelNotes);
 8023                });
 8024            }
 8025
 8026            active_window = Some(window_handle);
 8027        }
 8028
 8029        if let Err(err) = result {
 8030            log::error!("failed to join channel: {}", err);
 8031            if let Some(active_window) = active_window {
 8032                active_window
 8033                    .update(cx, |_, window, cx| {
 8034                        let detail: SharedString = match err.error_code() {
 8035                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8036                            ErrorCode::UpgradeRequired => concat!(
 8037                                "Your are running an unsupported version of Zed. ",
 8038                                "Please update to continue."
 8039                            )
 8040                            .into(),
 8041                            ErrorCode::NoSuchChannel => concat!(
 8042                                "No matching channel was found. ",
 8043                                "Please check the link and try again."
 8044                            )
 8045                            .into(),
 8046                            ErrorCode::Forbidden => concat!(
 8047                                "This channel is private, and you do not have access. ",
 8048                                "Please ask someone to add you and try again."
 8049                            )
 8050                            .into(),
 8051                            ErrorCode::Disconnected => {
 8052                                "Please check your internet connection and try again.".into()
 8053                            }
 8054                            _ => format!("{}\n\nPlease try again.", err).into(),
 8055                        };
 8056                        window.prompt(
 8057                            PromptLevel::Critical,
 8058                            "Failed to join channel",
 8059                            Some(&detail),
 8060                            &["Ok"],
 8061                            cx,
 8062                        )
 8063                    })?
 8064                    .await
 8065                    .ok();
 8066            }
 8067        }
 8068
 8069        // return ok, we showed the error to the user.
 8070        anyhow::Ok(())
 8071    })
 8072}
 8073
 8074pub async fn get_any_active_workspace(
 8075    app_state: Arc<AppState>,
 8076    mut cx: AsyncApp,
 8077) -> anyhow::Result<WindowHandle<Workspace>> {
 8078    // find an existing workspace to focus and show call controls
 8079    let active_window = activate_any_workspace_window(&mut cx);
 8080    if active_window.is_none() {
 8081        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))
 8082            .await?;
 8083    }
 8084    activate_any_workspace_window(&mut cx).context("could not open zed")
 8085}
 8086
 8087fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 8088    cx.update(|cx| {
 8089        if let Some(workspace_window) = cx
 8090            .active_window()
 8091            .and_then(|window| window.downcast::<Workspace>())
 8092        {
 8093            return Some(workspace_window);
 8094        }
 8095
 8096        for window in cx.windows() {
 8097            if let Some(workspace_window) = window.downcast::<Workspace>() {
 8098                workspace_window
 8099                    .update(cx, |_, window, _| window.activate_window())
 8100                    .ok();
 8101                return Some(workspace_window);
 8102            }
 8103        }
 8104        None
 8105    })
 8106}
 8107
 8108pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 8109    cx.windows()
 8110        .into_iter()
 8111        .filter_map(|window| window.downcast::<Workspace>())
 8112        .filter(|workspace| {
 8113            workspace
 8114                .read(cx)
 8115                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 8116        })
 8117        .collect()
 8118}
 8119
 8120#[derive(Default)]
 8121pub struct OpenOptions {
 8122    pub visible: Option<OpenVisible>,
 8123    pub focus: Option<bool>,
 8124    pub open_new_workspace: Option<bool>,
 8125    pub prefer_focused_window: bool,
 8126    pub replace_window: Option<WindowHandle<Workspace>>,
 8127    pub env: Option<HashMap<String, String>>,
 8128}
 8129
 8130#[allow(clippy::type_complexity)]
 8131pub fn open_paths(
 8132    abs_paths: &[PathBuf],
 8133    app_state: Arc<AppState>,
 8134    open_options: OpenOptions,
 8135    cx: &mut App,
 8136) -> Task<
 8137    anyhow::Result<(
 8138        WindowHandle<Workspace>,
 8139        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8140    )>,
 8141> {
 8142    let abs_paths = abs_paths.to_vec();
 8143    let mut existing = None;
 8144    let mut best_match = None;
 8145    let mut open_visible = OpenVisible::All;
 8146    #[cfg(target_os = "windows")]
 8147    let wsl_path = abs_paths
 8148        .iter()
 8149        .find_map(|p| util::paths::WslPath::from_path(p));
 8150
 8151    cx.spawn(async move |cx| {
 8152        if open_options.open_new_workspace != Some(true) {
 8153            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8154            let all_metadatas = futures::future::join_all(all_paths)
 8155                .await
 8156                .into_iter()
 8157                .filter_map(|result| result.ok().flatten())
 8158                .collect::<Vec<_>>();
 8159
 8160            cx.update(|cx| {
 8161                for window in local_workspace_windows(cx) {
 8162                    if let Ok(workspace) = window.read(cx) {
 8163                        let m = workspace.project.read(cx).visibility_for_paths(
 8164                            &abs_paths,
 8165                            &all_metadatas,
 8166                            open_options.open_new_workspace == None,
 8167                            cx,
 8168                        );
 8169                        if m > best_match {
 8170                            existing = Some(window);
 8171                            best_match = m;
 8172                        } else if best_match.is_none()
 8173                            && open_options.open_new_workspace == Some(false)
 8174                        {
 8175                            existing = Some(window)
 8176                        }
 8177                    }
 8178                }
 8179            });
 8180
 8181            if open_options.open_new_workspace.is_none()
 8182                && (existing.is_none() || open_options.prefer_focused_window)
 8183                && all_metadatas.iter().all(|file| !file.is_dir)
 8184            {
 8185                cx.update(|cx| {
 8186                    if let Some(window) = cx
 8187                        .active_window()
 8188                        .and_then(|window| window.downcast::<Workspace>())
 8189                        && let Ok(workspace) = window.read(cx)
 8190                    {
 8191                        let project = workspace.project().read(cx);
 8192                        if project.is_local() && !project.is_via_collab() {
 8193                            existing = Some(window);
 8194                            open_visible = OpenVisible::None;
 8195                            return;
 8196                        }
 8197                    }
 8198                    for window in local_workspace_windows(cx) {
 8199                        if let Ok(workspace) = window.read(cx) {
 8200                            let project = workspace.project().read(cx);
 8201                            if project.is_via_collab() {
 8202                                continue;
 8203                            }
 8204                            existing = Some(window);
 8205                            open_visible = OpenVisible::None;
 8206                            break;
 8207                        }
 8208                    }
 8209                });
 8210            }
 8211        }
 8212
 8213        let result = if let Some(existing) = existing {
 8214            let open_task = existing
 8215                .update(cx, |workspace, window, cx| {
 8216                    window.activate_window();
 8217                    workspace.open_paths(
 8218                        abs_paths,
 8219                        OpenOptions {
 8220                            visible: Some(open_visible),
 8221                            ..Default::default()
 8222                        },
 8223                        None,
 8224                        window,
 8225                        cx,
 8226                    )
 8227                })?
 8228                .await;
 8229
 8230            _ = existing.update(cx, |workspace, _, cx| {
 8231                for item in open_task.iter().flatten() {
 8232                    if let Err(e) = item {
 8233                        workspace.show_error(&e, cx);
 8234                    }
 8235                }
 8236            });
 8237
 8238            Ok((existing, open_task))
 8239        } else {
 8240            cx.update(move |cx| {
 8241                Workspace::new_local(
 8242                    abs_paths,
 8243                    app_state.clone(),
 8244                    open_options.replace_window,
 8245                    open_options.env,
 8246                    None,
 8247                    cx,
 8248                )
 8249            })
 8250            .await
 8251        };
 8252
 8253        #[cfg(target_os = "windows")]
 8254        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8255            && let Ok((workspace, _)) = &result
 8256        {
 8257            workspace
 8258                .update(cx, move |workspace, _window, cx| {
 8259                    struct OpenInWsl;
 8260                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8261                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8262                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8263                        cx.new(move |cx| {
 8264                            MessageNotification::new(msg, cx)
 8265                                .primary_message("Open in WSL")
 8266                                .primary_icon(IconName::FolderOpen)
 8267                                .primary_on_click(move |window, cx| {
 8268                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8269                                            distro: remote::WslConnectionOptions {
 8270                                                    distro_name: distro.clone(),
 8271                                                user: None,
 8272                                            },
 8273                                            paths: vec![path.clone().into()],
 8274                                        }), cx)
 8275                                })
 8276                        })
 8277                    });
 8278                })
 8279                .unwrap();
 8280        };
 8281        result
 8282    })
 8283}
 8284
 8285pub fn open_new(
 8286    open_options: OpenOptions,
 8287    app_state: Arc<AppState>,
 8288    cx: &mut App,
 8289    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8290) -> Task<anyhow::Result<()>> {
 8291    let task = Workspace::new_local(
 8292        Vec::new(),
 8293        app_state,
 8294        open_options.replace_window,
 8295        open_options.env,
 8296        Some(Box::new(init)),
 8297        cx,
 8298    );
 8299    cx.spawn(async move |_cx| {
 8300        let (_workspace, _opened_paths) = task.await?;
 8301        // Init callback is called synchronously during workspace creation
 8302        Ok(())
 8303    })
 8304}
 8305
 8306pub fn create_and_open_local_file(
 8307    path: &'static Path,
 8308    window: &mut Window,
 8309    cx: &mut Context<Workspace>,
 8310    default_content: impl 'static + Send + FnOnce() -> Rope,
 8311) -> Task<Result<Box<dyn ItemHandle>>> {
 8312    cx.spawn_in(window, async move |workspace, cx| {
 8313        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8314        if !fs.is_file(path).await {
 8315            fs.create_file(path, Default::default()).await?;
 8316            fs.save(path, &default_content(), Default::default())
 8317                .await?;
 8318        }
 8319
 8320        workspace
 8321            .update_in(cx, |workspace, window, cx| {
 8322                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 8323                    let path = workspace
 8324                        .project
 8325                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 8326                    cx.spawn_in(window, async move |workspace, cx| {
 8327                        let path = path.await?;
 8328                        let mut items = workspace
 8329                            .update_in(cx, |workspace, window, cx| {
 8330                                workspace.open_paths(
 8331                                    vec![path.to_path_buf()],
 8332                                    OpenOptions {
 8333                                        visible: Some(OpenVisible::None),
 8334                                        ..Default::default()
 8335                                    },
 8336                                    None,
 8337                                    window,
 8338                                    cx,
 8339                                )
 8340                            })?
 8341                            .await;
 8342                        let item = items.pop().flatten();
 8343                        item.with_context(|| format!("path {path:?} is not a file"))?
 8344                    })
 8345                })
 8346            })?
 8347            .await?
 8348            .await
 8349    })
 8350}
 8351
 8352pub fn open_remote_project_with_new_connection(
 8353    window: WindowHandle<Workspace>,
 8354    remote_connection: Arc<dyn RemoteConnection>,
 8355    cancel_rx: oneshot::Receiver<()>,
 8356    delegate: Arc<dyn RemoteClientDelegate>,
 8357    app_state: Arc<AppState>,
 8358    paths: Vec<PathBuf>,
 8359    cx: &mut App,
 8360) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8361    cx.spawn(async move |cx| {
 8362        let (workspace_id, serialized_workspace) =
 8363            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8364                .await?;
 8365
 8366        let session = match cx
 8367            .update(|cx| {
 8368                remote::RemoteClient::new(
 8369                    ConnectionIdentifier::Workspace(workspace_id.0),
 8370                    remote_connection,
 8371                    cancel_rx,
 8372                    delegate,
 8373                    cx,
 8374                )
 8375            })
 8376            .await?
 8377        {
 8378            Some(result) => result,
 8379            None => return Ok(Vec::new()),
 8380        };
 8381
 8382        let project = cx.update(|cx| {
 8383            project::Project::remote(
 8384                session,
 8385                app_state.client.clone(),
 8386                app_state.node_runtime.clone(),
 8387                app_state.user_store.clone(),
 8388                app_state.languages.clone(),
 8389                app_state.fs.clone(),
 8390                true,
 8391                cx,
 8392            )
 8393        });
 8394
 8395        open_remote_project_inner(
 8396            project,
 8397            paths,
 8398            workspace_id,
 8399            serialized_workspace,
 8400            app_state,
 8401            window,
 8402            cx,
 8403        )
 8404        .await
 8405    })
 8406}
 8407
 8408pub fn open_remote_project_with_existing_connection(
 8409    connection_options: RemoteConnectionOptions,
 8410    project: Entity<Project>,
 8411    paths: Vec<PathBuf>,
 8412    app_state: Arc<AppState>,
 8413    window: WindowHandle<Workspace>,
 8414    cx: &mut AsyncApp,
 8415) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8416    cx.spawn(async move |cx| {
 8417        let (workspace_id, serialized_workspace) =
 8418            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8419
 8420        open_remote_project_inner(
 8421            project,
 8422            paths,
 8423            workspace_id,
 8424            serialized_workspace,
 8425            app_state,
 8426            window,
 8427            cx,
 8428        )
 8429        .await
 8430    })
 8431}
 8432
 8433async fn open_remote_project_inner(
 8434    project: Entity<Project>,
 8435    paths: Vec<PathBuf>,
 8436    workspace_id: WorkspaceId,
 8437    serialized_workspace: Option<SerializedWorkspace>,
 8438    app_state: Arc<AppState>,
 8439    window: WindowHandle<Workspace>,
 8440    cx: &mut AsyncApp,
 8441) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8442    let toolchains = DB.toolchains(workspace_id).await?;
 8443    for (toolchain, worktree_path, path) in toolchains {
 8444        project
 8445            .update(cx, |this, cx| {
 8446                let Some(worktree_id) =
 8447                    this.find_worktree(&worktree_path, cx)
 8448                        .and_then(|(worktree, rel_path)| {
 8449                            if rel_path.is_empty() {
 8450                                Some(worktree.read(cx).id())
 8451                            } else {
 8452                                None
 8453                            }
 8454                        })
 8455                else {
 8456                    return Task::ready(None);
 8457                };
 8458
 8459                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8460            })
 8461            .await;
 8462    }
 8463    let mut project_paths_to_open = vec![];
 8464    let mut project_path_errors = vec![];
 8465
 8466    for path in paths {
 8467        let result = cx
 8468            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 8469            .await;
 8470        match result {
 8471            Ok((_, project_path)) => {
 8472                project_paths_to_open.push((path.clone(), Some(project_path)));
 8473            }
 8474            Err(error) => {
 8475                project_path_errors.push(error);
 8476            }
 8477        };
 8478    }
 8479
 8480    if project_paths_to_open.is_empty() {
 8481        return Err(project_path_errors.pop().context("no paths given")?);
 8482    }
 8483
 8484    if let Some(detach_session_task) = window
 8485        .update(cx, |_workspace, window, cx| {
 8486            cx.spawn_in(window, async move |this, cx| {
 8487                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8488            })
 8489        })
 8490        .ok()
 8491    {
 8492        detach_session_task.await.ok();
 8493    }
 8494
 8495    cx.update_window(window.into(), |_, window, cx| {
 8496        window.replace_root(cx, |window, cx| {
 8497            telemetry::event!("SSH Project Opened");
 8498
 8499            let mut workspace =
 8500                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8501            workspace.update_history(cx);
 8502
 8503            if let Some(ref serialized) = serialized_workspace {
 8504                workspace.centered_layout = serialized.centered_layout;
 8505            }
 8506
 8507            workspace
 8508        });
 8509    })?;
 8510
 8511    let items = window
 8512        .update(cx, |_, window, cx| {
 8513            window.activate_window();
 8514            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8515        })?
 8516        .await?;
 8517
 8518    window.update(cx, |workspace, _, cx| {
 8519        for error in project_path_errors {
 8520            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8521                if let Some(path) = error.error_tag("path") {
 8522                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8523                }
 8524            } else {
 8525                workspace.show_error(&error, cx)
 8526            }
 8527        }
 8528    })?;
 8529
 8530    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8531}
 8532
 8533fn deserialize_remote_project(
 8534    connection_options: RemoteConnectionOptions,
 8535    paths: Vec<PathBuf>,
 8536    cx: &AsyncApp,
 8537) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8538    cx.background_spawn(async move {
 8539        let remote_connection_id = persistence::DB
 8540            .get_or_create_remote_connection(connection_options)
 8541            .await?;
 8542
 8543        let serialized_workspace =
 8544            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8545
 8546        let workspace_id = if let Some(workspace_id) =
 8547            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8548        {
 8549            workspace_id
 8550        } else {
 8551            persistence::DB.next_id().await?
 8552        };
 8553
 8554        Ok((workspace_id, serialized_workspace))
 8555    })
 8556}
 8557
 8558pub fn join_in_room_project(
 8559    project_id: u64,
 8560    follow_user_id: u64,
 8561    app_state: Arc<AppState>,
 8562    cx: &mut App,
 8563) -> Task<Result<()>> {
 8564    let windows = cx.windows();
 8565    cx.spawn(async move |cx| {
 8566        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8567            window_handle
 8568                .downcast::<Workspace>()
 8569                .and_then(|window_handle| {
 8570                    window_handle
 8571                        .update(cx, |workspace, _window, cx| {
 8572                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8573                                Some(window_handle)
 8574                            } else {
 8575                                None
 8576                            }
 8577                        })
 8578                        .unwrap_or(None)
 8579                })
 8580        });
 8581
 8582        let workspace = if let Some(existing_workspace) = existing_workspace {
 8583            existing_workspace
 8584        } else {
 8585            let active_call = cx.update(|cx| ActiveCall::global(cx));
 8586            let room = active_call
 8587                .read_with(cx, |call, _| call.room().cloned())
 8588                .context("not in a call")?;
 8589            let project = room
 8590                .update(cx, |room, cx| {
 8591                    room.join_project(
 8592                        project_id,
 8593                        app_state.languages.clone(),
 8594                        app_state.fs.clone(),
 8595                        cx,
 8596                    )
 8597                })
 8598                .await?;
 8599
 8600            let window_bounds_override = window_bounds_env_override();
 8601            cx.update(|cx| {
 8602                let mut options = (app_state.build_window_options)(None, cx);
 8603                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8604                cx.open_window(options, |window, cx| {
 8605                    cx.new(|cx| {
 8606                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8607                    })
 8608                })
 8609            })?
 8610        };
 8611
 8612        workspace.update(cx, |workspace, window, cx| {
 8613            cx.activate(true);
 8614            window.activate_window();
 8615
 8616            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8617                let follow_peer_id = room
 8618                    .read(cx)
 8619                    .remote_participants()
 8620                    .iter()
 8621                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8622                    .map(|(_, p)| p.peer_id)
 8623                    .or_else(|| {
 8624                        // If we couldn't follow the given user, follow the host instead.
 8625                        let collaborator = workspace
 8626                            .project()
 8627                            .read(cx)
 8628                            .collaborators()
 8629                            .values()
 8630                            .find(|collaborator| collaborator.is_host)?;
 8631                        Some(collaborator.peer_id)
 8632                    });
 8633
 8634                if let Some(follow_peer_id) = follow_peer_id {
 8635                    workspace.follow(follow_peer_id, window, cx);
 8636                }
 8637            }
 8638        })?;
 8639
 8640        anyhow::Ok(())
 8641    })
 8642}
 8643
 8644pub fn reload(cx: &mut App) {
 8645    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8646    let mut workspace_windows = cx
 8647        .windows()
 8648        .into_iter()
 8649        .filter_map(|window| window.downcast::<Workspace>())
 8650        .collect::<Vec<_>>();
 8651
 8652    // If multiple windows have unsaved changes, and need a save prompt,
 8653    // prompt in the active window before switching to a different window.
 8654    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8655
 8656    let mut prompt = None;
 8657    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8658        prompt = window
 8659            .update(cx, |_, window, cx| {
 8660                window.prompt(
 8661                    PromptLevel::Info,
 8662                    "Are you sure you want to restart?",
 8663                    None,
 8664                    &["Restart", "Cancel"],
 8665                    cx,
 8666                )
 8667            })
 8668            .ok();
 8669    }
 8670
 8671    cx.spawn(async move |cx| {
 8672        if let Some(prompt) = prompt {
 8673            let answer = prompt.await?;
 8674            if answer != 0 {
 8675                return anyhow::Ok(());
 8676            }
 8677        }
 8678
 8679        // If the user cancels any save prompt, then keep the app open.
 8680        for window in workspace_windows {
 8681            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8682                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8683            }) && !should_close.await?
 8684            {
 8685                return anyhow::Ok(());
 8686            }
 8687        }
 8688        cx.update(|cx| cx.restart());
 8689        anyhow::Ok(())
 8690    })
 8691    .detach_and_log_err(cx);
 8692}
 8693
 8694fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8695    let mut parts = value.split(',');
 8696    let x: usize = parts.next()?.parse().ok()?;
 8697    let y: usize = parts.next()?.parse().ok()?;
 8698    Some(point(px(x as f32), px(y as f32)))
 8699}
 8700
 8701fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8702    let mut parts = value.split(',');
 8703    let width: usize = parts.next()?.parse().ok()?;
 8704    let height: usize = parts.next()?.parse().ok()?;
 8705    Some(size(px(width as f32), px(height as f32)))
 8706}
 8707
 8708/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8709pub fn client_side_decorations(
 8710    element: impl IntoElement,
 8711    window: &mut Window,
 8712    cx: &mut App,
 8713) -> Stateful<Div> {
 8714    const BORDER_SIZE: Pixels = px(1.0);
 8715    let decorations = window.window_decorations();
 8716
 8717    match decorations {
 8718        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8719        Decorations::Server => window.set_client_inset(px(0.0)),
 8720    }
 8721
 8722    struct GlobalResizeEdge(ResizeEdge);
 8723    impl Global for GlobalResizeEdge {}
 8724
 8725    div()
 8726        .id("window-backdrop")
 8727        .bg(transparent_black())
 8728        .map(|div| match decorations {
 8729            Decorations::Server => div,
 8730            Decorations::Client { tiling, .. } => div
 8731                .when(!(tiling.top || tiling.right), |div| {
 8732                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8733                })
 8734                .when(!(tiling.top || tiling.left), |div| {
 8735                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8736                })
 8737                .when(!(tiling.bottom || tiling.right), |div| {
 8738                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8739                })
 8740                .when(!(tiling.bottom || tiling.left), |div| {
 8741                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8742                })
 8743                .when(!tiling.top, |div| {
 8744                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8745                })
 8746                .when(!tiling.bottom, |div| {
 8747                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8748                })
 8749                .when(!tiling.left, |div| {
 8750                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8751                })
 8752                .when(!tiling.right, |div| {
 8753                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8754                })
 8755                .on_mouse_move(move |e, window, cx| {
 8756                    let size = window.window_bounds().get_bounds().size;
 8757                    let pos = e.position;
 8758
 8759                    let new_edge =
 8760                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8761
 8762                    let edge = cx.try_global::<GlobalResizeEdge>();
 8763                    if new_edge != edge.map(|edge| edge.0) {
 8764                        window
 8765                            .window_handle()
 8766                            .update(cx, |workspace, _, cx| {
 8767                                cx.notify(workspace.entity_id());
 8768                            })
 8769                            .ok();
 8770                    }
 8771                })
 8772                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8773                    let size = window.window_bounds().get_bounds().size;
 8774                    let pos = e.position;
 8775
 8776                    let edge = match resize_edge(
 8777                        pos,
 8778                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8779                        size,
 8780                        tiling,
 8781                    ) {
 8782                        Some(value) => value,
 8783                        None => return,
 8784                    };
 8785
 8786                    window.start_window_resize(edge);
 8787                }),
 8788        })
 8789        .size_full()
 8790        .child(
 8791            div()
 8792                .cursor(CursorStyle::Arrow)
 8793                .map(|div| match decorations {
 8794                    Decorations::Server => div,
 8795                    Decorations::Client { tiling } => div
 8796                        .border_color(cx.theme().colors().border)
 8797                        .when(!(tiling.top || tiling.right), |div| {
 8798                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8799                        })
 8800                        .when(!(tiling.top || tiling.left), |div| {
 8801                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8802                        })
 8803                        .when(!(tiling.bottom || tiling.right), |div| {
 8804                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8805                        })
 8806                        .when(!(tiling.bottom || tiling.left), |div| {
 8807                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8808                        })
 8809                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8810                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8811                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8812                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8813                        .when(!tiling.is_tiled(), |div| {
 8814                            div.shadow(vec![gpui::BoxShadow {
 8815                                color: Hsla {
 8816                                    h: 0.,
 8817                                    s: 0.,
 8818                                    l: 0.,
 8819                                    a: 0.4,
 8820                                },
 8821                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8822                                spread_radius: px(0.),
 8823                                offset: point(px(0.0), px(0.0)),
 8824                            }])
 8825                        }),
 8826                })
 8827                .on_mouse_move(|_e, _, cx| {
 8828                    cx.stop_propagation();
 8829                })
 8830                .size_full()
 8831                .child(element),
 8832        )
 8833        .map(|div| match decorations {
 8834            Decorations::Server => div,
 8835            Decorations::Client { tiling, .. } => div.child(
 8836                canvas(
 8837                    |_bounds, window, _| {
 8838                        window.insert_hitbox(
 8839                            Bounds::new(
 8840                                point(px(0.0), px(0.0)),
 8841                                window.window_bounds().get_bounds().size,
 8842                            ),
 8843                            HitboxBehavior::Normal,
 8844                        )
 8845                    },
 8846                    move |_bounds, hitbox, window, cx| {
 8847                        let mouse = window.mouse_position();
 8848                        let size = window.window_bounds().get_bounds().size;
 8849                        let Some(edge) =
 8850                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8851                        else {
 8852                            return;
 8853                        };
 8854                        cx.set_global(GlobalResizeEdge(edge));
 8855                        window.set_cursor_style(
 8856                            match edge {
 8857                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8858                                ResizeEdge::Left | ResizeEdge::Right => {
 8859                                    CursorStyle::ResizeLeftRight
 8860                                }
 8861                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8862                                    CursorStyle::ResizeUpLeftDownRight
 8863                                }
 8864                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8865                                    CursorStyle::ResizeUpRightDownLeft
 8866                                }
 8867                            },
 8868                            &hitbox,
 8869                        );
 8870                    },
 8871                )
 8872                .size_full()
 8873                .absolute(),
 8874            ),
 8875        })
 8876}
 8877
 8878fn resize_edge(
 8879    pos: Point<Pixels>,
 8880    shadow_size: Pixels,
 8881    window_size: Size<Pixels>,
 8882    tiling: Tiling,
 8883) -> Option<ResizeEdge> {
 8884    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8885    if bounds.contains(&pos) {
 8886        return None;
 8887    }
 8888
 8889    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8890    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8891    if !tiling.top && top_left_bounds.contains(&pos) {
 8892        return Some(ResizeEdge::TopLeft);
 8893    }
 8894
 8895    let top_right_bounds = Bounds::new(
 8896        Point::new(window_size.width - corner_size.width, px(0.)),
 8897        corner_size,
 8898    );
 8899    if !tiling.top && top_right_bounds.contains(&pos) {
 8900        return Some(ResizeEdge::TopRight);
 8901    }
 8902
 8903    let bottom_left_bounds = Bounds::new(
 8904        Point::new(px(0.), window_size.height - corner_size.height),
 8905        corner_size,
 8906    );
 8907    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8908        return Some(ResizeEdge::BottomLeft);
 8909    }
 8910
 8911    let bottom_right_bounds = Bounds::new(
 8912        Point::new(
 8913            window_size.width - corner_size.width,
 8914            window_size.height - corner_size.height,
 8915        ),
 8916        corner_size,
 8917    );
 8918    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8919        return Some(ResizeEdge::BottomRight);
 8920    }
 8921
 8922    if !tiling.top && pos.y < shadow_size {
 8923        Some(ResizeEdge::Top)
 8924    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8925        Some(ResizeEdge::Bottom)
 8926    } else if !tiling.left && pos.x < shadow_size {
 8927        Some(ResizeEdge::Left)
 8928    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8929        Some(ResizeEdge::Right)
 8930    } else {
 8931        None
 8932    }
 8933}
 8934
 8935fn join_pane_into_active(
 8936    active_pane: &Entity<Pane>,
 8937    pane: &Entity<Pane>,
 8938    window: &mut Window,
 8939    cx: &mut App,
 8940) {
 8941    if pane == active_pane {
 8942    } else if pane.read(cx).items_len() == 0 {
 8943        pane.update(cx, |_, cx| {
 8944            cx.emit(pane::Event::Remove {
 8945                focus_on_pane: None,
 8946            });
 8947        })
 8948    } else {
 8949        move_all_items(pane, active_pane, window, cx);
 8950    }
 8951}
 8952
 8953fn move_all_items(
 8954    from_pane: &Entity<Pane>,
 8955    to_pane: &Entity<Pane>,
 8956    window: &mut Window,
 8957    cx: &mut App,
 8958) {
 8959    let destination_is_different = from_pane != to_pane;
 8960    let mut moved_items = 0;
 8961    for (item_ix, item_handle) in from_pane
 8962        .read(cx)
 8963        .items()
 8964        .enumerate()
 8965        .map(|(ix, item)| (ix, item.clone()))
 8966        .collect::<Vec<_>>()
 8967    {
 8968        let ix = item_ix - moved_items;
 8969        if destination_is_different {
 8970            // Close item from previous pane
 8971            from_pane.update(cx, |source, cx| {
 8972                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8973            });
 8974            moved_items += 1;
 8975        }
 8976
 8977        // This automatically removes duplicate items in the pane
 8978        to_pane.update(cx, |destination, cx| {
 8979            destination.add_item(item_handle, true, true, None, window, cx);
 8980            window.focus(&destination.focus_handle(cx), cx)
 8981        });
 8982    }
 8983}
 8984
 8985pub fn move_item(
 8986    source: &Entity<Pane>,
 8987    destination: &Entity<Pane>,
 8988    item_id_to_move: EntityId,
 8989    destination_index: usize,
 8990    activate: bool,
 8991    window: &mut Window,
 8992    cx: &mut App,
 8993) {
 8994    let Some((item_ix, item_handle)) = source
 8995        .read(cx)
 8996        .items()
 8997        .enumerate()
 8998        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8999        .map(|(ix, item)| (ix, item.clone()))
 9000    else {
 9001        // Tab was closed during drag
 9002        return;
 9003    };
 9004
 9005    if source != destination {
 9006        // Close item from previous pane
 9007        source.update(cx, |source, cx| {
 9008            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9009        });
 9010    }
 9011
 9012    // This automatically removes duplicate items in the pane
 9013    destination.update(cx, |destination, cx| {
 9014        destination.add_item_inner(
 9015            item_handle,
 9016            activate,
 9017            activate,
 9018            activate,
 9019            Some(destination_index),
 9020            window,
 9021            cx,
 9022        );
 9023        if activate {
 9024            window.focus(&destination.focus_handle(cx), cx)
 9025        }
 9026    });
 9027}
 9028
 9029pub fn move_active_item(
 9030    source: &Entity<Pane>,
 9031    destination: &Entity<Pane>,
 9032    focus_destination: bool,
 9033    close_if_empty: bool,
 9034    window: &mut Window,
 9035    cx: &mut App,
 9036) {
 9037    if source == destination {
 9038        return;
 9039    }
 9040    let Some(active_item) = source.read(cx).active_item() else {
 9041        return;
 9042    };
 9043    source.update(cx, |source_pane, cx| {
 9044        let item_id = active_item.item_id();
 9045        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9046        destination.update(cx, |target_pane, cx| {
 9047            target_pane.add_item(
 9048                active_item,
 9049                focus_destination,
 9050                focus_destination,
 9051                Some(target_pane.items_len()),
 9052                window,
 9053                cx,
 9054            );
 9055        });
 9056    });
 9057}
 9058
 9059pub fn clone_active_item(
 9060    workspace_id: Option<WorkspaceId>,
 9061    source: &Entity<Pane>,
 9062    destination: &Entity<Pane>,
 9063    focus_destination: bool,
 9064    window: &mut Window,
 9065    cx: &mut App,
 9066) {
 9067    if source == destination {
 9068        return;
 9069    }
 9070    let Some(active_item) = source.read(cx).active_item() else {
 9071        return;
 9072    };
 9073    if !active_item.can_split(cx) {
 9074        return;
 9075    }
 9076    let destination = destination.downgrade();
 9077    let task = active_item.clone_on_split(workspace_id, window, cx);
 9078    window
 9079        .spawn(cx, async move |cx| {
 9080            let Some(clone) = task.await else {
 9081                return;
 9082            };
 9083            destination
 9084                .update_in(cx, |target_pane, window, cx| {
 9085                    target_pane.add_item(
 9086                        clone,
 9087                        focus_destination,
 9088                        focus_destination,
 9089                        Some(target_pane.items_len()),
 9090                        window,
 9091                        cx,
 9092                    );
 9093                })
 9094                .log_err();
 9095        })
 9096        .detach();
 9097}
 9098
 9099#[derive(Debug)]
 9100pub struct WorkspacePosition {
 9101    pub window_bounds: Option<WindowBounds>,
 9102    pub display: Option<Uuid>,
 9103    pub centered_layout: bool,
 9104}
 9105
 9106pub fn remote_workspace_position_from_db(
 9107    connection_options: RemoteConnectionOptions,
 9108    paths_to_open: &[PathBuf],
 9109    cx: &App,
 9110) -> Task<Result<WorkspacePosition>> {
 9111    let paths = paths_to_open.to_vec();
 9112
 9113    cx.background_spawn(async move {
 9114        let remote_connection_id = persistence::DB
 9115            .get_or_create_remote_connection(connection_options)
 9116            .await
 9117            .context("fetching serialized ssh project")?;
 9118        let serialized_workspace =
 9119            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9120
 9121        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9122            (Some(WindowBounds::Windowed(bounds)), None)
 9123        } else {
 9124            let restorable_bounds = serialized_workspace
 9125                .as_ref()
 9126                .and_then(|workspace| {
 9127                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9128                })
 9129                .or_else(|| persistence::read_default_window_bounds());
 9130
 9131            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9132                (Some(serialized_bounds), Some(serialized_display))
 9133            } else {
 9134                (None, None)
 9135            }
 9136        };
 9137
 9138        let centered_layout = serialized_workspace
 9139            .as_ref()
 9140            .map(|w| w.centered_layout)
 9141            .unwrap_or(false);
 9142
 9143        Ok(WorkspacePosition {
 9144            window_bounds,
 9145            display,
 9146            centered_layout,
 9147        })
 9148    })
 9149}
 9150
 9151pub fn with_active_or_new_workspace(
 9152    cx: &mut App,
 9153    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9154) {
 9155    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 9156        Some(workspace) => {
 9157            cx.defer(move |cx| {
 9158                workspace
 9159                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 9160                    .log_err();
 9161            });
 9162        }
 9163        None => {
 9164            let app_state = AppState::global(cx);
 9165            if let Some(app_state) = app_state.upgrade() {
 9166                open_new(
 9167                    OpenOptions::default(),
 9168                    app_state,
 9169                    cx,
 9170                    move |workspace, window, cx| f(workspace, window, cx),
 9171                )
 9172                .detach_and_log_err(cx);
 9173            }
 9174        }
 9175    }
 9176}
 9177
 9178#[cfg(test)]
 9179mod tests {
 9180    use std::{cell::RefCell, rc::Rc};
 9181
 9182    use super::*;
 9183    use crate::{
 9184        dock::{PanelEvent, test::TestPanel},
 9185        item::{
 9186            ItemBufferKind, ItemEvent,
 9187            test::{TestItem, TestProjectItem},
 9188        },
 9189    };
 9190    use fs::FakeFs;
 9191    use gpui::{
 9192        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9193        UpdateGlobal, VisualTestContext, px,
 9194    };
 9195    use project::{Project, ProjectEntryId};
 9196    use serde_json::json;
 9197    use settings::SettingsStore;
 9198    use util::rel_path::rel_path;
 9199
 9200    #[gpui::test]
 9201    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9202        init_test(cx);
 9203
 9204        let fs = FakeFs::new(cx.executor());
 9205        let project = Project::test(fs, [], cx).await;
 9206        let (workspace, cx) =
 9207            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9208
 9209        // Adding an item with no ambiguity renders the tab without detail.
 9210        let item1 = cx.new(|cx| {
 9211            let mut item = TestItem::new(cx);
 9212            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9213            item
 9214        });
 9215        workspace.update_in(cx, |workspace, window, cx| {
 9216            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9217        });
 9218        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9219
 9220        // Adding an item that creates ambiguity increases the level of detail on
 9221        // both tabs.
 9222        let item2 = cx.new_window_entity(|_window, cx| {
 9223            let mut item = TestItem::new(cx);
 9224            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9225            item
 9226        });
 9227        workspace.update_in(cx, |workspace, window, cx| {
 9228            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9229        });
 9230        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9231        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9232
 9233        // Adding an item that creates ambiguity increases the level of detail only
 9234        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9235        // we stop at the highest detail available.
 9236        let item3 = cx.new(|cx| {
 9237            let mut item = TestItem::new(cx);
 9238            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9239            item
 9240        });
 9241        workspace.update_in(cx, |workspace, window, cx| {
 9242            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9243        });
 9244        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9245        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9246        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9247    }
 9248
 9249    #[gpui::test]
 9250    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9251        init_test(cx);
 9252
 9253        let fs = FakeFs::new(cx.executor());
 9254        fs.insert_tree(
 9255            "/root1",
 9256            json!({
 9257                "one.txt": "",
 9258                "two.txt": "",
 9259            }),
 9260        )
 9261        .await;
 9262        fs.insert_tree(
 9263            "/root2",
 9264            json!({
 9265                "three.txt": "",
 9266            }),
 9267        )
 9268        .await;
 9269
 9270        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9271        let (workspace, cx) =
 9272            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9273        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9274        let worktree_id = project.update(cx, |project, cx| {
 9275            project.worktrees(cx).next().unwrap().read(cx).id()
 9276        });
 9277
 9278        let item1 = cx.new(|cx| {
 9279            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9280        });
 9281        let item2 = cx.new(|cx| {
 9282            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9283        });
 9284
 9285        // Add an item to an empty pane
 9286        workspace.update_in(cx, |workspace, window, cx| {
 9287            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9288        });
 9289        project.update(cx, |project, cx| {
 9290            assert_eq!(
 9291                project.active_entry(),
 9292                project
 9293                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9294                    .map(|e| e.id)
 9295            );
 9296        });
 9297        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9298
 9299        // Add a second item to a non-empty pane
 9300        workspace.update_in(cx, |workspace, window, cx| {
 9301            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9302        });
 9303        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9304        project.update(cx, |project, cx| {
 9305            assert_eq!(
 9306                project.active_entry(),
 9307                project
 9308                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9309                    .map(|e| e.id)
 9310            );
 9311        });
 9312
 9313        // Close the active item
 9314        pane.update_in(cx, |pane, window, cx| {
 9315            pane.close_active_item(&Default::default(), window, cx)
 9316        })
 9317        .await
 9318        .unwrap();
 9319        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9320        project.update(cx, |project, cx| {
 9321            assert_eq!(
 9322                project.active_entry(),
 9323                project
 9324                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9325                    .map(|e| e.id)
 9326            );
 9327        });
 9328
 9329        // Add a project folder
 9330        project
 9331            .update(cx, |project, cx| {
 9332                project.find_or_create_worktree("root2", true, cx)
 9333            })
 9334            .await
 9335            .unwrap();
 9336        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9337
 9338        // Remove a project folder
 9339        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9340        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9341    }
 9342
 9343    #[gpui::test]
 9344    async fn test_close_window(cx: &mut TestAppContext) {
 9345        init_test(cx);
 9346
 9347        let fs = FakeFs::new(cx.executor());
 9348        fs.insert_tree("/root", json!({ "one": "" })).await;
 9349
 9350        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9351        let (workspace, cx) =
 9352            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9353
 9354        // When there are no dirty items, there's nothing to do.
 9355        let item1 = cx.new(TestItem::new);
 9356        workspace.update_in(cx, |w, window, cx| {
 9357            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9358        });
 9359        let task = workspace.update_in(cx, |w, window, cx| {
 9360            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9361        });
 9362        assert!(task.await.unwrap());
 9363
 9364        // When there are dirty untitled items, prompt to save each one. If the user
 9365        // cancels any prompt, then abort.
 9366        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9367        let item3 = cx.new(|cx| {
 9368            TestItem::new(cx)
 9369                .with_dirty(true)
 9370                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9371        });
 9372        workspace.update_in(cx, |w, window, cx| {
 9373            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9374            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9375        });
 9376        let task = workspace.update_in(cx, |w, window, cx| {
 9377            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9378        });
 9379        cx.executor().run_until_parked();
 9380        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9381        cx.executor().run_until_parked();
 9382        assert!(!cx.has_pending_prompt());
 9383        assert!(!task.await.unwrap());
 9384    }
 9385
 9386    #[gpui::test]
 9387    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9388        init_test(cx);
 9389
 9390        // Register TestItem as a serializable item
 9391        cx.update(|cx| {
 9392            register_serializable_item::<TestItem>(cx);
 9393        });
 9394
 9395        let fs = FakeFs::new(cx.executor());
 9396        fs.insert_tree("/root", json!({ "one": "" })).await;
 9397
 9398        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9399        let (workspace, cx) =
 9400            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9401
 9402        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9403        let item1 = cx.new(|cx| {
 9404            TestItem::new(cx)
 9405                .with_dirty(true)
 9406                .with_serialize(|| Some(Task::ready(Ok(()))))
 9407        });
 9408        let item2 = cx.new(|cx| {
 9409            TestItem::new(cx)
 9410                .with_dirty(true)
 9411                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9412                .with_serialize(|| Some(Task::ready(Ok(()))))
 9413        });
 9414        workspace.update_in(cx, |w, window, cx| {
 9415            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9416            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9417        });
 9418        let task = workspace.update_in(cx, |w, window, cx| {
 9419            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9420        });
 9421        assert!(task.await.unwrap());
 9422    }
 9423
 9424    #[gpui::test]
 9425    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9426        init_test(cx);
 9427
 9428        let fs = FakeFs::new(cx.executor());
 9429
 9430        let project = Project::test(fs, None, cx).await;
 9431        let (workspace, cx) =
 9432            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9433
 9434        let item1 = cx.new(|cx| {
 9435            TestItem::new(cx)
 9436                .with_dirty(true)
 9437                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9438        });
 9439        let item2 = cx.new(|cx| {
 9440            TestItem::new(cx)
 9441                .with_dirty(true)
 9442                .with_conflict(true)
 9443                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9444        });
 9445        let item3 = cx.new(|cx| {
 9446            TestItem::new(cx)
 9447                .with_dirty(true)
 9448                .with_conflict(true)
 9449                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9450        });
 9451        let item4 = cx.new(|cx| {
 9452            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9453                let project_item = TestProjectItem::new_untitled(cx);
 9454                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9455                project_item
 9456            }])
 9457        });
 9458        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9459            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9460            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9461            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9462            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9463            workspace.active_pane().clone()
 9464        });
 9465
 9466        let close_items = pane.update_in(cx, |pane, window, cx| {
 9467            pane.activate_item(1, true, true, window, cx);
 9468            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9469            let item1_id = item1.item_id();
 9470            let item3_id = item3.item_id();
 9471            let item4_id = item4.item_id();
 9472            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9473                [item1_id, item3_id, item4_id].contains(&id)
 9474            })
 9475        });
 9476        cx.executor().run_until_parked();
 9477
 9478        assert!(cx.has_pending_prompt());
 9479        cx.simulate_prompt_answer("Save all");
 9480
 9481        cx.executor().run_until_parked();
 9482
 9483        // Item 1 is saved. There's a prompt to save item 3.
 9484        pane.update(cx, |pane, cx| {
 9485            assert_eq!(item1.read(cx).save_count, 1);
 9486            assert_eq!(item1.read(cx).save_as_count, 0);
 9487            assert_eq!(item1.read(cx).reload_count, 0);
 9488            assert_eq!(pane.items_len(), 3);
 9489            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9490        });
 9491        assert!(cx.has_pending_prompt());
 9492
 9493        // Cancel saving item 3.
 9494        cx.simulate_prompt_answer("Discard");
 9495        cx.executor().run_until_parked();
 9496
 9497        // Item 3 is reloaded. There's a prompt to save item 4.
 9498        pane.update(cx, |pane, cx| {
 9499            assert_eq!(item3.read(cx).save_count, 0);
 9500            assert_eq!(item3.read(cx).save_as_count, 0);
 9501            assert_eq!(item3.read(cx).reload_count, 1);
 9502            assert_eq!(pane.items_len(), 2);
 9503            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9504        });
 9505
 9506        // There's a prompt for a path for item 4.
 9507        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9508        close_items.await.unwrap();
 9509
 9510        // The requested items are closed.
 9511        pane.update(cx, |pane, cx| {
 9512            assert_eq!(item4.read(cx).save_count, 0);
 9513            assert_eq!(item4.read(cx).save_as_count, 1);
 9514            assert_eq!(item4.read(cx).reload_count, 0);
 9515            assert_eq!(pane.items_len(), 1);
 9516            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9517        });
 9518    }
 9519
 9520    #[gpui::test]
 9521    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9522        init_test(cx);
 9523
 9524        let fs = FakeFs::new(cx.executor());
 9525        let project = Project::test(fs, [], cx).await;
 9526        let (workspace, cx) =
 9527            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9528
 9529        // Create several workspace items with single project entries, and two
 9530        // workspace items with multiple project entries.
 9531        let single_entry_items = (0..=4)
 9532            .map(|project_entry_id| {
 9533                cx.new(|cx| {
 9534                    TestItem::new(cx)
 9535                        .with_dirty(true)
 9536                        .with_project_items(&[dirty_project_item(
 9537                            project_entry_id,
 9538                            &format!("{project_entry_id}.txt"),
 9539                            cx,
 9540                        )])
 9541                })
 9542            })
 9543            .collect::<Vec<_>>();
 9544        let item_2_3 = cx.new(|cx| {
 9545            TestItem::new(cx)
 9546                .with_dirty(true)
 9547                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9548                .with_project_items(&[
 9549                    single_entry_items[2].read(cx).project_items[0].clone(),
 9550                    single_entry_items[3].read(cx).project_items[0].clone(),
 9551                ])
 9552        });
 9553        let item_3_4 = cx.new(|cx| {
 9554            TestItem::new(cx)
 9555                .with_dirty(true)
 9556                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9557                .with_project_items(&[
 9558                    single_entry_items[3].read(cx).project_items[0].clone(),
 9559                    single_entry_items[4].read(cx).project_items[0].clone(),
 9560                ])
 9561        });
 9562
 9563        // Create two panes that contain the following project entries:
 9564        //   left pane:
 9565        //     multi-entry items:   (2, 3)
 9566        //     single-entry items:  0, 2, 3, 4
 9567        //   right pane:
 9568        //     single-entry items:  4, 1
 9569        //     multi-entry items:   (3, 4)
 9570        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9571            let left_pane = workspace.active_pane().clone();
 9572            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9573            workspace.add_item_to_active_pane(
 9574                single_entry_items[0].boxed_clone(),
 9575                None,
 9576                true,
 9577                window,
 9578                cx,
 9579            );
 9580            workspace.add_item_to_active_pane(
 9581                single_entry_items[2].boxed_clone(),
 9582                None,
 9583                true,
 9584                window,
 9585                cx,
 9586            );
 9587            workspace.add_item_to_active_pane(
 9588                single_entry_items[3].boxed_clone(),
 9589                None,
 9590                true,
 9591                window,
 9592                cx,
 9593            );
 9594            workspace.add_item_to_active_pane(
 9595                single_entry_items[4].boxed_clone(),
 9596                None,
 9597                true,
 9598                window,
 9599                cx,
 9600            );
 9601
 9602            let right_pane =
 9603                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9604
 9605            let boxed_clone = single_entry_items[1].boxed_clone();
 9606            let right_pane = window.spawn(cx, async move |cx| {
 9607                right_pane.await.inspect(|right_pane| {
 9608                    right_pane
 9609                        .update_in(cx, |pane, window, cx| {
 9610                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9611                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9612                        })
 9613                        .unwrap();
 9614                })
 9615            });
 9616
 9617            (left_pane, right_pane)
 9618        });
 9619        let right_pane = right_pane.await.unwrap();
 9620        cx.focus(&right_pane);
 9621
 9622        let close = right_pane.update_in(cx, |pane, window, cx| {
 9623            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9624                .unwrap()
 9625        });
 9626        cx.executor().run_until_parked();
 9627
 9628        let msg = cx.pending_prompt().unwrap().0;
 9629        assert!(msg.contains("1.txt"));
 9630        assert!(!msg.contains("2.txt"));
 9631        assert!(!msg.contains("3.txt"));
 9632        assert!(!msg.contains("4.txt"));
 9633
 9634        // With best-effort close, cancelling item 1 keeps it open but items 4
 9635        // and (3,4) still close since their entries exist in left pane.
 9636        cx.simulate_prompt_answer("Cancel");
 9637        close.await;
 9638
 9639        right_pane.read_with(cx, |pane, _| {
 9640            assert_eq!(pane.items_len(), 1);
 9641        });
 9642
 9643        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9644        left_pane
 9645            .update_in(cx, |left_pane, window, cx| {
 9646                left_pane.close_item_by_id(
 9647                    single_entry_items[3].entity_id(),
 9648                    SaveIntent::Skip,
 9649                    window,
 9650                    cx,
 9651                )
 9652            })
 9653            .await
 9654            .unwrap();
 9655
 9656        let close = left_pane.update_in(cx, |pane, window, cx| {
 9657            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9658                .unwrap()
 9659        });
 9660        cx.executor().run_until_parked();
 9661
 9662        let details = cx.pending_prompt().unwrap().1;
 9663        assert!(details.contains("0.txt"));
 9664        assert!(details.contains("3.txt"));
 9665        assert!(details.contains("4.txt"));
 9666        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9667        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9668        // assert!(!details.contains("2.txt"));
 9669
 9670        cx.simulate_prompt_answer("Save all");
 9671        cx.executor().run_until_parked();
 9672        close.await;
 9673
 9674        left_pane.read_with(cx, |pane, _| {
 9675            assert_eq!(pane.items_len(), 0);
 9676        });
 9677    }
 9678
 9679    #[gpui::test]
 9680    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9681        init_test(cx);
 9682
 9683        let fs = FakeFs::new(cx.executor());
 9684        let project = Project::test(fs, [], cx).await;
 9685        let (workspace, cx) =
 9686            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9687        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9688
 9689        let item = cx.new(|cx| {
 9690            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9691        });
 9692        let item_id = item.entity_id();
 9693        workspace.update_in(cx, |workspace, window, cx| {
 9694            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9695        });
 9696
 9697        // Autosave on window change.
 9698        item.update(cx, |item, cx| {
 9699            SettingsStore::update_global(cx, |settings, cx| {
 9700                settings.update_user_settings(cx, |settings| {
 9701                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9702                })
 9703            });
 9704            item.is_dirty = true;
 9705        });
 9706
 9707        // Deactivating the window saves the file.
 9708        cx.deactivate_window();
 9709        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9710
 9711        // Re-activating the window doesn't save the file.
 9712        cx.update(|window, _| window.activate_window());
 9713        cx.executor().run_until_parked();
 9714        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9715
 9716        // Autosave on focus change.
 9717        item.update_in(cx, |item, window, cx| {
 9718            cx.focus_self(window);
 9719            SettingsStore::update_global(cx, |settings, cx| {
 9720                settings.update_user_settings(cx, |settings| {
 9721                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9722                })
 9723            });
 9724            item.is_dirty = true;
 9725        });
 9726        // Blurring the item saves the file.
 9727        item.update_in(cx, |_, window, _| window.blur());
 9728        cx.executor().run_until_parked();
 9729        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9730
 9731        // Deactivating the window still saves the file.
 9732        item.update_in(cx, |item, window, cx| {
 9733            cx.focus_self(window);
 9734            item.is_dirty = true;
 9735        });
 9736        cx.deactivate_window();
 9737        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9738
 9739        // Autosave after delay.
 9740        item.update(cx, |item, cx| {
 9741            SettingsStore::update_global(cx, |settings, cx| {
 9742                settings.update_user_settings(cx, |settings| {
 9743                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9744                        milliseconds: 500.into(),
 9745                    });
 9746                })
 9747            });
 9748            item.is_dirty = true;
 9749            cx.emit(ItemEvent::Edit);
 9750        });
 9751
 9752        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9753        cx.executor().advance_clock(Duration::from_millis(250));
 9754        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9755
 9756        // After delay expires, the file is saved.
 9757        cx.executor().advance_clock(Duration::from_millis(250));
 9758        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9759
 9760        // Autosave after delay, should save earlier than delay if tab is closed
 9761        item.update(cx, |item, cx| {
 9762            item.is_dirty = true;
 9763            cx.emit(ItemEvent::Edit);
 9764        });
 9765        cx.executor().advance_clock(Duration::from_millis(250));
 9766        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9767
 9768        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9769        pane.update_in(cx, |pane, window, cx| {
 9770            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9771        })
 9772        .await
 9773        .unwrap();
 9774        assert!(!cx.has_pending_prompt());
 9775        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9776
 9777        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9778        workspace.update_in(cx, |workspace, window, cx| {
 9779            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9780        });
 9781        item.update_in(cx, |item, _window, cx| {
 9782            item.is_dirty = true;
 9783            for project_item in &mut item.project_items {
 9784                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9785            }
 9786        });
 9787        cx.run_until_parked();
 9788        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9789
 9790        // Autosave on focus change, ensuring closing the tab counts as such.
 9791        item.update(cx, |item, cx| {
 9792            SettingsStore::update_global(cx, |settings, cx| {
 9793                settings.update_user_settings(cx, |settings| {
 9794                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9795                })
 9796            });
 9797            item.is_dirty = true;
 9798            for project_item in &mut item.project_items {
 9799                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9800            }
 9801        });
 9802
 9803        pane.update_in(cx, |pane, window, cx| {
 9804            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9805        })
 9806        .await
 9807        .unwrap();
 9808        assert!(!cx.has_pending_prompt());
 9809        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9810
 9811        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9812        workspace.update_in(cx, |workspace, window, cx| {
 9813            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9814        });
 9815        item.update_in(cx, |item, window, cx| {
 9816            item.project_items[0].update(cx, |item, _| {
 9817                item.entry_id = None;
 9818            });
 9819            item.is_dirty = true;
 9820            window.blur();
 9821        });
 9822        cx.run_until_parked();
 9823        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9824
 9825        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9826        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9827            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9828        });
 9829        cx.run_until_parked();
 9830        assert!(cx.has_pending_prompt());
 9831        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9832    }
 9833
 9834    #[gpui::test]
 9835    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9836        init_test(cx);
 9837
 9838        let fs = FakeFs::new(cx.executor());
 9839
 9840        let project = Project::test(fs, [], cx).await;
 9841        let (workspace, cx) =
 9842            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9843
 9844        let item = cx.new(|cx| {
 9845            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9846        });
 9847        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9848        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9849        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9850
 9851        workspace.update_in(cx, |workspace, window, cx| {
 9852            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9853            let toolbar_notification_count = toolbar_notify_count.clone();
 9854            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9855                *toolbar_notification_count.borrow_mut() += 1
 9856            })
 9857            .detach();
 9858        });
 9859
 9860        pane.read_with(cx, |pane, _| {
 9861            assert!(!pane.can_navigate_backward());
 9862            assert!(!pane.can_navigate_forward());
 9863        });
 9864
 9865        item.update_in(cx, |item, _, cx| {
 9866            item.set_state("one".to_string(), cx);
 9867        });
 9868
 9869        // Toolbar must be notified to re-render the navigation buttons
 9870        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9871
 9872        pane.read_with(cx, |pane, _| {
 9873            assert!(pane.can_navigate_backward());
 9874            assert!(!pane.can_navigate_forward());
 9875        });
 9876
 9877        workspace
 9878            .update_in(cx, |workspace, window, cx| {
 9879                workspace.go_back(pane.downgrade(), window, cx)
 9880            })
 9881            .await
 9882            .unwrap();
 9883
 9884        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9885        pane.read_with(cx, |pane, _| {
 9886            assert!(!pane.can_navigate_backward());
 9887            assert!(pane.can_navigate_forward());
 9888        });
 9889    }
 9890
 9891    #[gpui::test]
 9892    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9893        init_test(cx);
 9894        let fs = FakeFs::new(cx.executor());
 9895
 9896        let project = Project::test(fs, [], cx).await;
 9897        let (workspace, cx) =
 9898            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9899
 9900        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9901            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9902            workspace.add_panel(panel.clone(), window, cx);
 9903
 9904            workspace
 9905                .right_dock()
 9906                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9907
 9908            panel
 9909        });
 9910
 9911        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9912        pane.update_in(cx, |pane, window, cx| {
 9913            let item = cx.new(TestItem::new);
 9914            pane.add_item(Box::new(item), true, true, None, window, cx);
 9915        });
 9916
 9917        // Transfer focus from center to panel
 9918        workspace.update_in(cx, |workspace, window, cx| {
 9919            workspace.toggle_panel_focus::<TestPanel>(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        // Transfer focus from panel to center
 9929        workspace.update_in(cx, |workspace, window, cx| {
 9930            workspace.toggle_panel_focus::<TestPanel>(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        // Close the dock
 9940        workspace.update_in(cx, |workspace, window, cx| {
 9941            workspace.toggle_dock(DockPosition::Right, window, cx);
 9942        });
 9943
 9944        workspace.update_in(cx, |workspace, window, cx| {
 9945            assert!(!workspace.right_dock().read(cx).is_open());
 9946            assert!(!panel.is_zoomed(window, cx));
 9947            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9948        });
 9949
 9950        // Open the dock
 9951        workspace.update_in(cx, |workspace, window, cx| {
 9952            workspace.toggle_dock(DockPosition::Right, window, cx);
 9953        });
 9954
 9955        workspace.update_in(cx, |workspace, window, cx| {
 9956            assert!(workspace.right_dock().read(cx).is_open());
 9957            assert!(!panel.is_zoomed(window, cx));
 9958            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9959        });
 9960
 9961        // Focus and zoom panel
 9962        panel.update_in(cx, |panel, window, cx| {
 9963            cx.focus_self(window);
 9964            panel.set_zoomed(true, 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        // Transfer focus to the center closes the dock
 9974        workspace.update_in(cx, |workspace, window, cx| {
 9975            workspace.toggle_panel_focus::<TestPanel>(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!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9982        });
 9983
 9984        // Transferring focus back to the panel keeps it zoomed
 9985        workspace.update_in(cx, |workspace, window, cx| {
 9986            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9987        });
 9988
 9989        workspace.update_in(cx, |workspace, window, cx| {
 9990            assert!(workspace.right_dock().read(cx).is_open());
 9991            assert!(panel.is_zoomed(window, cx));
 9992            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9993        });
 9994
 9995        // Close the dock while it is zoomed
 9996        workspace.update_in(cx, |workspace, window, cx| {
 9997            workspace.toggle_dock(DockPosition::Right, window, cx)
 9998        });
 9999
10000        workspace.update_in(cx, |workspace, window, cx| {
10001            assert!(!workspace.right_dock().read(cx).is_open());
10002            assert!(panel.is_zoomed(window, cx));
10003            assert!(workspace.zoomed.is_none());
10004            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10005        });
10006
10007        // Opening the dock, when it's zoomed, retains focus
10008        workspace.update_in(cx, |workspace, window, cx| {
10009            workspace.toggle_dock(DockPosition::Right, window, cx)
10010        });
10011
10012        workspace.update_in(cx, |workspace, window, cx| {
10013            assert!(workspace.right_dock().read(cx).is_open());
10014            assert!(panel.is_zoomed(window, cx));
10015            assert!(workspace.zoomed.is_some());
10016            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10017        });
10018
10019        // Unzoom and close the panel, zoom the active pane.
10020        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
10021        workspace.update_in(cx, |workspace, window, cx| {
10022            workspace.toggle_dock(DockPosition::Right, window, cx)
10023        });
10024        pane.update_in(cx, |pane, window, cx| {
10025            pane.toggle_zoom(&Default::default(), window, cx)
10026        });
10027
10028        // Opening a dock unzooms the pane.
10029        workspace.update_in(cx, |workspace, window, cx| {
10030            workspace.toggle_dock(DockPosition::Right, window, cx)
10031        });
10032        workspace.update_in(cx, |workspace, window, cx| {
10033            let pane = pane.read(cx);
10034            assert!(!pane.is_zoomed());
10035            assert!(!pane.focus_handle(cx).is_focused(window));
10036            assert!(workspace.right_dock().read(cx).is_open());
10037            assert!(workspace.zoomed.is_none());
10038        });
10039    }
10040
10041    #[gpui::test]
10042    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
10043        init_test(cx);
10044        let fs = FakeFs::new(cx.executor());
10045
10046        let project = Project::test(fs, [], cx).await;
10047        let (workspace, cx) =
10048            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10049
10050        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
10051            workspace.active_pane().clone()
10052        });
10053
10054        // Add an item to the pane so it can be zoomed
10055        workspace.update_in(cx, |workspace, window, cx| {
10056            let item = cx.new(TestItem::new);
10057            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
10058        });
10059
10060        // Initially not zoomed
10061        workspace.update_in(cx, |workspace, _window, cx| {
10062            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
10063            assert!(
10064                workspace.zoomed.is_none(),
10065                "Workspace should track no zoomed pane"
10066            );
10067            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
10068        });
10069
10070        // Zoom In
10071        pane.update_in(cx, |pane, window, cx| {
10072            pane.zoom_in(&crate::ZoomIn, window, cx);
10073        });
10074
10075        workspace.update_in(cx, |workspace, window, cx| {
10076            assert!(
10077                pane.read(cx).is_zoomed(),
10078                "Pane should be zoomed after ZoomIn"
10079            );
10080            assert!(
10081                workspace.zoomed.is_some(),
10082                "Workspace should track the zoomed pane"
10083            );
10084            assert!(
10085                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10086                "ZoomIn should focus the pane"
10087            );
10088        });
10089
10090        // Zoom In again is a no-op
10091        pane.update_in(cx, |pane, window, cx| {
10092            pane.zoom_in(&crate::ZoomIn, window, cx);
10093        });
10094
10095        workspace.update_in(cx, |workspace, window, cx| {
10096            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
10097            assert!(
10098                workspace.zoomed.is_some(),
10099                "Workspace still tracks zoomed pane"
10100            );
10101            assert!(
10102                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10103                "Pane remains focused after repeated ZoomIn"
10104            );
10105        });
10106
10107        // Zoom Out
10108        pane.update_in(cx, |pane, window, cx| {
10109            pane.zoom_out(&crate::ZoomOut, window, cx);
10110        });
10111
10112        workspace.update_in(cx, |workspace, _window, cx| {
10113            assert!(
10114                !pane.read(cx).is_zoomed(),
10115                "Pane should unzoom after ZoomOut"
10116            );
10117            assert!(
10118                workspace.zoomed.is_none(),
10119                "Workspace clears zoom tracking after ZoomOut"
10120            );
10121        });
10122
10123        // Zoom Out again is a no-op
10124        pane.update_in(cx, |pane, window, cx| {
10125            pane.zoom_out(&crate::ZoomOut, window, cx);
10126        });
10127
10128        workspace.update_in(cx, |workspace, _window, cx| {
10129            assert!(
10130                !pane.read(cx).is_zoomed(),
10131                "Second ZoomOut keeps pane unzoomed"
10132            );
10133            assert!(
10134                workspace.zoomed.is_none(),
10135                "Workspace remains without zoomed pane"
10136            );
10137        });
10138    }
10139
10140    #[gpui::test]
10141    async fn test_zoomed_dock_persists_across_window_activation(cx: &mut gpui::TestAppContext) {
10142        init_test(cx);
10143        let fs = FakeFs::new(cx.executor());
10144
10145        let project = Project::test(fs, [], cx).await;
10146        let (workspace, cx) =
10147            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10148
10149        let panel = workspace.update_in(cx, |workspace, window, cx| {
10150            let panel = cx.new(|cx| TestPanel::new(DockPosition::Bottom, 100, cx));
10151            workspace.add_panel(panel.clone(), window, cx);
10152            workspace.toggle_dock(DockPosition::Bottom, window, cx);
10153            panel
10154        });
10155
10156        // Activate and zoom the panel
10157        panel.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10158        panel.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10159
10160        // Verify the dock is open and zoomed with focus in the panel
10161        workspace.update_in(cx, |workspace, window, cx| {
10162            assert!(
10163                workspace.bottom_dock().read(cx).is_open(),
10164                "Bottom dock should be open"
10165            );
10166            assert!(panel.is_zoomed(window, cx), "Panel should be zoomed");
10167            assert!(
10168                workspace.zoomed.is_some(),
10169                "Workspace should track the zoomed panel"
10170            );
10171            assert!(
10172                workspace.zoomed_position.is_some(),
10173                "Workspace should track the zoomed dock position"
10174            );
10175            assert!(
10176                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
10177                "Panel should be focused"
10178            );
10179        });
10180
10181        // Deactivate the window (simulates cmd-tab away from Zed)
10182        cx.deactivate_window();
10183
10184        // Verify the dock is still open while window is deactivated
10185        // (the bug manifests on REactivation, not deactivation)
10186        workspace.update_in(cx, |workspace, window, cx| {
10187            assert!(
10188                workspace.bottom_dock().read(cx).is_open(),
10189                "Bottom dock should still be open while window is deactivated"
10190            );
10191            assert!(
10192                panel.is_zoomed(window, cx),
10193                "Panel should still be zoomed while window is deactivated"
10194            );
10195            assert!(
10196                workspace.zoomed_position.is_some(),
10197                "zoomed_position should still be set while window is deactivated"
10198            );
10199        });
10200
10201        // Reactivate the window (simulates cmd-tab back to Zed)
10202        // During reactivation, focus is restored to the dock panel
10203        cx.update(|window, _cx| {
10204            window.activate_window();
10205        });
10206        cx.run_until_parked();
10207
10208        // Verify zoomed dock remains open after reactivation
10209        workspace.update_in(cx, |workspace, window, cx| {
10210            assert!(
10211                workspace.bottom_dock().read(cx).is_open(),
10212                "Bottom dock should remain open after window reactivation"
10213            );
10214            assert!(
10215                panel.is_zoomed(window, cx),
10216                "Panel should remain zoomed after window reactivation"
10217            );
10218            assert!(
10219                workspace.zoomed.is_some(),
10220                "Workspace should still track the zoomed panel after window reactivation"
10221            );
10222        });
10223    }
10224
10225    #[gpui::test]
10226    async fn test_zoomed_dock_dismissed_when_focus_moves_to_center_pane(
10227        cx: &mut gpui::TestAppContext,
10228    ) {
10229        init_test(cx);
10230        let fs = FakeFs::new(cx.executor());
10231
10232        let project = Project::test(fs, [], cx).await;
10233        let (workspace, cx) =
10234            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10235
10236        let panel = workspace.update_in(cx, |workspace, window, cx| {
10237            let panel = cx.new(|cx| TestPanel::new(DockPosition::Bottom, 100, cx));
10238            workspace.add_panel(panel.clone(), window, cx);
10239            workspace.toggle_dock(DockPosition::Bottom, window, cx);
10240            panel
10241        });
10242
10243        // Activate and zoom the panel
10244        panel.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10245        panel.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10246
10247        // Verify setup
10248        workspace.update_in(cx, |workspace, window, cx| {
10249            assert!(workspace.bottom_dock().read(cx).is_open());
10250            assert!(panel.is_zoomed(window, cx));
10251            assert!(workspace.zoomed_position.is_some());
10252        });
10253
10254        // Explicitly focus the center pane (simulates user clicking in the editor)
10255        workspace.update_in(cx, |workspace, window, cx| {
10256            window.focus(&workspace.active_pane().focus_handle(cx), cx);
10257        });
10258        cx.run_until_parked();
10259
10260        // When user explicitly focuses the center pane, the zoomed dock SHOULD be dismissed
10261        workspace.update_in(cx, |workspace, _window, cx| {
10262            assert!(
10263                !workspace.bottom_dock().read(cx).is_open(),
10264                "Bottom dock should be closed when focus explicitly moves to center pane"
10265            );
10266            assert!(
10267                workspace.zoomed.is_none(),
10268                "Workspace should not track zoomed panel when focus explicitly moves to center pane"
10269            );
10270            assert!(
10271                workspace.zoomed_position.is_none(),
10272                "Workspace zoomed_position should be None when focus explicitly moves to center pane"
10273            );
10274        });
10275    }
10276
10277    #[gpui::test]
10278    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
10279        init_test(cx);
10280        let fs = FakeFs::new(cx.executor());
10281
10282        let project = Project::test(fs, [], cx).await;
10283        let (workspace, cx) =
10284            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10285        workspace.update_in(cx, |workspace, window, cx| {
10286            // Open two docks
10287            let left_dock = workspace.dock_at_position(DockPosition::Left);
10288            let right_dock = workspace.dock_at_position(DockPosition::Right);
10289
10290            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10291            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10292
10293            assert!(left_dock.read(cx).is_open());
10294            assert!(right_dock.read(cx).is_open());
10295        });
10296
10297        workspace.update_in(cx, |workspace, window, cx| {
10298            // Toggle all docks - should close both
10299            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10300
10301            let left_dock = workspace.dock_at_position(DockPosition::Left);
10302            let right_dock = workspace.dock_at_position(DockPosition::Right);
10303            assert!(!left_dock.read(cx).is_open());
10304            assert!(!right_dock.read(cx).is_open());
10305        });
10306
10307        workspace.update_in(cx, |workspace, window, cx| {
10308            // Toggle again - should reopen both
10309            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10310
10311            let left_dock = workspace.dock_at_position(DockPosition::Left);
10312            let right_dock = workspace.dock_at_position(DockPosition::Right);
10313            assert!(left_dock.read(cx).is_open());
10314            assert!(right_dock.read(cx).is_open());
10315        });
10316    }
10317
10318    #[gpui::test]
10319    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10320        init_test(cx);
10321        let fs = FakeFs::new(cx.executor());
10322
10323        let project = Project::test(fs, [], cx).await;
10324        let (workspace, cx) =
10325            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10326        workspace.update_in(cx, |workspace, window, cx| {
10327            // Open two docks
10328            let left_dock = workspace.dock_at_position(DockPosition::Left);
10329            let right_dock = workspace.dock_at_position(DockPosition::Right);
10330
10331            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10332            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10333
10334            assert!(left_dock.read(cx).is_open());
10335            assert!(right_dock.read(cx).is_open());
10336        });
10337
10338        workspace.update_in(cx, |workspace, window, cx| {
10339            // Close them manually
10340            workspace.toggle_dock(DockPosition::Left, window, cx);
10341            workspace.toggle_dock(DockPosition::Right, window, cx);
10342
10343            let left_dock = workspace.dock_at_position(DockPosition::Left);
10344            let right_dock = workspace.dock_at_position(DockPosition::Right);
10345            assert!(!left_dock.read(cx).is_open());
10346            assert!(!right_dock.read(cx).is_open());
10347        });
10348
10349        workspace.update_in(cx, |workspace, window, cx| {
10350            // Toggle all docks - only last closed (right dock) should reopen
10351            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10352
10353            let left_dock = workspace.dock_at_position(DockPosition::Left);
10354            let right_dock = workspace.dock_at_position(DockPosition::Right);
10355            assert!(!left_dock.read(cx).is_open());
10356            assert!(right_dock.read(cx).is_open());
10357        });
10358    }
10359
10360    #[gpui::test]
10361    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10362        init_test(cx);
10363        let fs = FakeFs::new(cx.executor());
10364        let project = Project::test(fs, [], cx).await;
10365        let (workspace, cx) =
10366            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10367
10368        // Open two docks (left and right) with one panel each
10369        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10370            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10371            workspace.add_panel(left_panel.clone(), window, cx);
10372
10373            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10374            workspace.add_panel(right_panel.clone(), window, cx);
10375
10376            workspace.toggle_dock(DockPosition::Left, window, cx);
10377            workspace.toggle_dock(DockPosition::Right, window, cx);
10378
10379            // Verify initial state
10380            assert!(
10381                workspace.left_dock().read(cx).is_open(),
10382                "Left dock should be open"
10383            );
10384            assert_eq!(
10385                workspace
10386                    .left_dock()
10387                    .read(cx)
10388                    .visible_panel()
10389                    .unwrap()
10390                    .panel_id(),
10391                left_panel.panel_id(),
10392                "Left panel should be visible in left dock"
10393            );
10394            assert!(
10395                workspace.right_dock().read(cx).is_open(),
10396                "Right dock should be open"
10397            );
10398            assert_eq!(
10399                workspace
10400                    .right_dock()
10401                    .read(cx)
10402                    .visible_panel()
10403                    .unwrap()
10404                    .panel_id(),
10405                right_panel.panel_id(),
10406                "Right panel should be visible in right dock"
10407            );
10408            assert!(
10409                !workspace.bottom_dock().read(cx).is_open(),
10410                "Bottom dock should be closed"
10411            );
10412
10413            (left_panel, right_panel)
10414        });
10415
10416        // Focus the left panel and move it to the next position (bottom dock)
10417        workspace.update_in(cx, |workspace, window, cx| {
10418            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10419            assert!(
10420                left_panel.read(cx).focus_handle(cx).is_focused(window),
10421                "Left panel should be focused"
10422            );
10423        });
10424
10425        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10426
10427        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10428        workspace.update(cx, |workspace, cx| {
10429            assert!(
10430                !workspace.left_dock().read(cx).is_open(),
10431                "Left dock should be closed"
10432            );
10433            assert!(
10434                workspace.bottom_dock().read(cx).is_open(),
10435                "Bottom dock should now be open"
10436            );
10437            assert_eq!(
10438                left_panel.read(cx).position,
10439                DockPosition::Bottom,
10440                "Left panel should now be in the bottom dock"
10441            );
10442            assert_eq!(
10443                workspace
10444                    .bottom_dock()
10445                    .read(cx)
10446                    .visible_panel()
10447                    .unwrap()
10448                    .panel_id(),
10449                left_panel.panel_id(),
10450                "Left panel should be the visible panel in the bottom dock"
10451            );
10452        });
10453
10454        // Toggle all docks off
10455        workspace.update_in(cx, |workspace, window, cx| {
10456            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10457            assert!(
10458                !workspace.left_dock().read(cx).is_open(),
10459                "Left dock should be closed"
10460            );
10461            assert!(
10462                !workspace.right_dock().read(cx).is_open(),
10463                "Right dock should be closed"
10464            );
10465            assert!(
10466                !workspace.bottom_dock().read(cx).is_open(),
10467                "Bottom dock should be closed"
10468            );
10469        });
10470
10471        // Toggle all docks back on and verify positions are restored
10472        workspace.update_in(cx, |workspace, window, cx| {
10473            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10474            assert!(
10475                !workspace.left_dock().read(cx).is_open(),
10476                "Left dock should remain closed"
10477            );
10478            assert!(
10479                workspace.right_dock().read(cx).is_open(),
10480                "Right dock should remain open"
10481            );
10482            assert!(
10483                workspace.bottom_dock().read(cx).is_open(),
10484                "Bottom dock should remain open"
10485            );
10486            assert_eq!(
10487                left_panel.read(cx).position,
10488                DockPosition::Bottom,
10489                "Left panel should remain in the bottom dock"
10490            );
10491            assert_eq!(
10492                right_panel.read(cx).position,
10493                DockPosition::Right,
10494                "Right panel should remain in the right dock"
10495            );
10496            assert_eq!(
10497                workspace
10498                    .bottom_dock()
10499                    .read(cx)
10500                    .visible_panel()
10501                    .unwrap()
10502                    .panel_id(),
10503                left_panel.panel_id(),
10504                "Left panel should be the visible panel in the right dock"
10505            );
10506        });
10507    }
10508
10509    #[gpui::test]
10510    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10511        init_test(cx);
10512
10513        let fs = FakeFs::new(cx.executor());
10514
10515        let project = Project::test(fs, None, cx).await;
10516        let (workspace, cx) =
10517            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10518
10519        // Let's arrange the panes like this:
10520        //
10521        // +-----------------------+
10522        // |         top           |
10523        // +------+--------+-------+
10524        // | left | center | right |
10525        // +------+--------+-------+
10526        // |        bottom         |
10527        // +-----------------------+
10528
10529        let top_item = cx.new(|cx| {
10530            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10531        });
10532        let bottom_item = cx.new(|cx| {
10533            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10534        });
10535        let left_item = cx.new(|cx| {
10536            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10537        });
10538        let right_item = cx.new(|cx| {
10539            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10540        });
10541        let center_item = cx.new(|cx| {
10542            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10543        });
10544
10545        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10546            let top_pane_id = workspace.active_pane().entity_id();
10547            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10548            workspace.split_pane(
10549                workspace.active_pane().clone(),
10550                SplitDirection::Down,
10551                window,
10552                cx,
10553            );
10554            top_pane_id
10555        });
10556        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10557            let bottom_pane_id = workspace.active_pane().entity_id();
10558            workspace.add_item_to_active_pane(
10559                Box::new(bottom_item.clone()),
10560                None,
10561                false,
10562                window,
10563                cx,
10564            );
10565            workspace.split_pane(
10566                workspace.active_pane().clone(),
10567                SplitDirection::Up,
10568                window,
10569                cx,
10570            );
10571            bottom_pane_id
10572        });
10573        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10574            let left_pane_id = workspace.active_pane().entity_id();
10575            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10576            workspace.split_pane(
10577                workspace.active_pane().clone(),
10578                SplitDirection::Right,
10579                window,
10580                cx,
10581            );
10582            left_pane_id
10583        });
10584        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10585            let right_pane_id = workspace.active_pane().entity_id();
10586            workspace.add_item_to_active_pane(
10587                Box::new(right_item.clone()),
10588                None,
10589                false,
10590                window,
10591                cx,
10592            );
10593            workspace.split_pane(
10594                workspace.active_pane().clone(),
10595                SplitDirection::Left,
10596                window,
10597                cx,
10598            );
10599            right_pane_id
10600        });
10601        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10602            let center_pane_id = workspace.active_pane().entity_id();
10603            workspace.add_item_to_active_pane(
10604                Box::new(center_item.clone()),
10605                None,
10606                false,
10607                window,
10608                cx,
10609            );
10610            center_pane_id
10611        });
10612        cx.executor().run_until_parked();
10613
10614        workspace.update_in(cx, |workspace, window, cx| {
10615            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10616
10617            // Join into next from center pane into right
10618            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10619        });
10620
10621        workspace.update_in(cx, |workspace, window, cx| {
10622            let active_pane = workspace.active_pane();
10623            assert_eq!(right_pane_id, active_pane.entity_id());
10624            assert_eq!(2, active_pane.read(cx).items_len());
10625            let item_ids_in_pane =
10626                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10627            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10628            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10629
10630            // Join into next from right pane into bottom
10631            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10632        });
10633
10634        workspace.update_in(cx, |workspace, window, cx| {
10635            let active_pane = workspace.active_pane();
10636            assert_eq!(bottom_pane_id, active_pane.entity_id());
10637            assert_eq!(3, active_pane.read(cx).items_len());
10638            let item_ids_in_pane =
10639                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10640            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10641            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10642            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10643
10644            // Join into next from bottom pane into left
10645            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10646        });
10647
10648        workspace.update_in(cx, |workspace, window, cx| {
10649            let active_pane = workspace.active_pane();
10650            assert_eq!(left_pane_id, active_pane.entity_id());
10651            assert_eq!(4, active_pane.read(cx).items_len());
10652            let item_ids_in_pane =
10653                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10654            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10655            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10656            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10657            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10658
10659            // Join into next from left pane into top
10660            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10661        });
10662
10663        workspace.update_in(cx, |workspace, window, cx| {
10664            let active_pane = workspace.active_pane();
10665            assert_eq!(top_pane_id, active_pane.entity_id());
10666            assert_eq!(5, active_pane.read(cx).items_len());
10667            let item_ids_in_pane =
10668                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10669            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10670            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10671            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10672            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10673            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10674
10675            // Single pane left: no-op
10676            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10677        });
10678
10679        workspace.update(cx, |workspace, _cx| {
10680            let active_pane = workspace.active_pane();
10681            assert_eq!(top_pane_id, active_pane.entity_id());
10682        });
10683    }
10684
10685    fn add_an_item_to_active_pane(
10686        cx: &mut VisualTestContext,
10687        workspace: &Entity<Workspace>,
10688        item_id: u64,
10689    ) -> Entity<TestItem> {
10690        let item = cx.new(|cx| {
10691            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10692                item_id,
10693                "item{item_id}.txt",
10694                cx,
10695            )])
10696        });
10697        workspace.update_in(cx, |workspace, window, cx| {
10698            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10699        });
10700        item
10701    }
10702
10703    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10704        workspace.update_in(cx, |workspace, window, cx| {
10705            workspace.split_pane(
10706                workspace.active_pane().clone(),
10707                SplitDirection::Right,
10708                window,
10709                cx,
10710            )
10711        })
10712    }
10713
10714    #[gpui::test]
10715    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10716        init_test(cx);
10717        let fs = FakeFs::new(cx.executor());
10718        let project = Project::test(fs, None, cx).await;
10719        let (workspace, cx) =
10720            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10721
10722        add_an_item_to_active_pane(cx, &workspace, 1);
10723        split_pane(cx, &workspace);
10724        add_an_item_to_active_pane(cx, &workspace, 2);
10725        split_pane(cx, &workspace); // empty pane
10726        split_pane(cx, &workspace);
10727        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10728
10729        cx.executor().run_until_parked();
10730
10731        workspace.update(cx, |workspace, cx| {
10732            let num_panes = workspace.panes().len();
10733            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10734            let active_item = workspace
10735                .active_pane()
10736                .read(cx)
10737                .active_item()
10738                .expect("item is in focus");
10739
10740            assert_eq!(num_panes, 4);
10741            assert_eq!(num_items_in_current_pane, 1);
10742            assert_eq!(active_item.item_id(), last_item.item_id());
10743        });
10744
10745        workspace.update_in(cx, |workspace, window, cx| {
10746            workspace.join_all_panes(window, cx);
10747        });
10748
10749        workspace.update(cx, |workspace, cx| {
10750            let num_panes = workspace.panes().len();
10751            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10752            let active_item = workspace
10753                .active_pane()
10754                .read(cx)
10755                .active_item()
10756                .expect("item is in focus");
10757
10758            assert_eq!(num_panes, 1);
10759            assert_eq!(num_items_in_current_pane, 3);
10760            assert_eq!(active_item.item_id(), last_item.item_id());
10761        });
10762    }
10763    struct TestModal(FocusHandle);
10764
10765    impl TestModal {
10766        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10767            Self(cx.focus_handle())
10768        }
10769    }
10770
10771    impl EventEmitter<DismissEvent> for TestModal {}
10772
10773    impl Focusable for TestModal {
10774        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10775            self.0.clone()
10776        }
10777    }
10778
10779    impl ModalView for TestModal {}
10780
10781    impl Render for TestModal {
10782        fn render(
10783            &mut self,
10784            _window: &mut Window,
10785            _cx: &mut Context<TestModal>,
10786        ) -> impl IntoElement {
10787            div().track_focus(&self.0)
10788        }
10789    }
10790
10791    #[gpui::test]
10792    async fn test_panels(cx: &mut gpui::TestAppContext) {
10793        init_test(cx);
10794        let fs = FakeFs::new(cx.executor());
10795
10796        let project = Project::test(fs, [], cx).await;
10797        let (workspace, cx) =
10798            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10799
10800        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10801            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10802            workspace.add_panel(panel_1.clone(), window, cx);
10803            workspace.toggle_dock(DockPosition::Left, window, cx);
10804            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10805            workspace.add_panel(panel_2.clone(), window, cx);
10806            workspace.toggle_dock(DockPosition::Right, window, cx);
10807
10808            let left_dock = workspace.left_dock();
10809            assert_eq!(
10810                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10811                panel_1.panel_id()
10812            );
10813            assert_eq!(
10814                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10815                panel_1.size(window, cx)
10816            );
10817
10818            left_dock.update(cx, |left_dock, cx| {
10819                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10820            });
10821            assert_eq!(
10822                workspace
10823                    .right_dock()
10824                    .read(cx)
10825                    .visible_panel()
10826                    .unwrap()
10827                    .panel_id(),
10828                panel_2.panel_id(),
10829            );
10830
10831            (panel_1, panel_2)
10832        });
10833
10834        // Move panel_1 to the right
10835        panel_1.update_in(cx, |panel_1, window, cx| {
10836            panel_1.set_position(DockPosition::Right, window, cx)
10837        });
10838
10839        workspace.update_in(cx, |workspace, window, cx| {
10840            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10841            // Since it was the only panel on the left, the left dock should now be closed.
10842            assert!(!workspace.left_dock().read(cx).is_open());
10843            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10844            let right_dock = workspace.right_dock();
10845            assert_eq!(
10846                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10847                panel_1.panel_id()
10848            );
10849            assert_eq!(
10850                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10851                px(1337.)
10852            );
10853
10854            // Now we move panel_2 to the left
10855            panel_2.set_position(DockPosition::Left, window, cx);
10856        });
10857
10858        workspace.update(cx, |workspace, cx| {
10859            // Since panel_2 was not visible on the right, we don't open the left dock.
10860            assert!(!workspace.left_dock().read(cx).is_open());
10861            // And the right dock is unaffected in its displaying of panel_1
10862            assert!(workspace.right_dock().read(cx).is_open());
10863            assert_eq!(
10864                workspace
10865                    .right_dock()
10866                    .read(cx)
10867                    .visible_panel()
10868                    .unwrap()
10869                    .panel_id(),
10870                panel_1.panel_id(),
10871            );
10872        });
10873
10874        // Move panel_1 back to the left
10875        panel_1.update_in(cx, |panel_1, window, cx| {
10876            panel_1.set_position(DockPosition::Left, window, cx)
10877        });
10878
10879        workspace.update_in(cx, |workspace, window, cx| {
10880            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10881            let left_dock = workspace.left_dock();
10882            assert!(left_dock.read(cx).is_open());
10883            assert_eq!(
10884                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10885                panel_1.panel_id()
10886            );
10887            assert_eq!(
10888                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10889                px(1337.)
10890            );
10891            // And the right dock should be closed as it no longer has any panels.
10892            assert!(!workspace.right_dock().read(cx).is_open());
10893
10894            // Now we move panel_1 to the bottom
10895            panel_1.set_position(DockPosition::Bottom, window, cx);
10896        });
10897
10898        workspace.update_in(cx, |workspace, window, cx| {
10899            // Since panel_1 was visible on the left, we close the left dock.
10900            assert!(!workspace.left_dock().read(cx).is_open());
10901            // The bottom dock is sized based on the panel's default size,
10902            // since the panel orientation changed from vertical to horizontal.
10903            let bottom_dock = workspace.bottom_dock();
10904            assert_eq!(
10905                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10906                panel_1.size(window, cx),
10907            );
10908            // Close bottom dock and move panel_1 back to the left.
10909            bottom_dock.update(cx, |bottom_dock, cx| {
10910                bottom_dock.set_open(false, window, cx)
10911            });
10912            panel_1.set_position(DockPosition::Left, window, cx);
10913        });
10914
10915        // Emit activated event on panel 1
10916        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10917
10918        // Now the left dock is open and panel_1 is active and focused.
10919        workspace.update_in(cx, |workspace, window, cx| {
10920            let left_dock = workspace.left_dock();
10921            assert!(left_dock.read(cx).is_open());
10922            assert_eq!(
10923                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10924                panel_1.panel_id(),
10925            );
10926            assert!(panel_1.focus_handle(cx).is_focused(window));
10927        });
10928
10929        // Emit closed event on panel 2, which is not active
10930        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10931
10932        // Wo don't close the left dock, because panel_2 wasn't the active panel
10933        workspace.update(cx, |workspace, cx| {
10934            let left_dock = workspace.left_dock();
10935            assert!(left_dock.read(cx).is_open());
10936            assert_eq!(
10937                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10938                panel_1.panel_id(),
10939            );
10940        });
10941
10942        // Emitting a ZoomIn event shows the panel as zoomed.
10943        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10944        workspace.read_with(cx, |workspace, _| {
10945            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10946            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10947        });
10948
10949        // Move panel to another dock while it is zoomed
10950        panel_1.update_in(cx, |panel, window, cx| {
10951            panel.set_position(DockPosition::Right, window, cx)
10952        });
10953        workspace.read_with(cx, |workspace, _| {
10954            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10955
10956            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10957        });
10958
10959        // This is a helper for getting a:
10960        // - valid focus on an element,
10961        // - that isn't a part of the panes and panels system of the Workspace,
10962        // - and doesn't trigger the 'on_focus_lost' API.
10963        let focus_other_view = {
10964            let workspace = workspace.clone();
10965            move |cx: &mut VisualTestContext| {
10966                workspace.update_in(cx, |workspace, window, cx| {
10967                    if workspace.active_modal::<TestModal>(cx).is_some() {
10968                        workspace.toggle_modal(window, cx, TestModal::new);
10969                        workspace.toggle_modal(window, cx, TestModal::new);
10970                    } else {
10971                        workspace.toggle_modal(window, cx, TestModal::new);
10972                    }
10973                })
10974            }
10975        };
10976
10977        // If focus is transferred to another view that's not a panel or another pane, we still show
10978        // the panel as zoomed.
10979        focus_other_view(cx);
10980        workspace.read_with(cx, |workspace, _| {
10981            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10982            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10983        });
10984
10985        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10986        workspace.update_in(cx, |_workspace, window, cx| {
10987            cx.focus_self(window);
10988        });
10989        workspace.read_with(cx, |workspace, _| {
10990            assert_eq!(workspace.zoomed, None);
10991            assert_eq!(workspace.zoomed_position, None);
10992        });
10993
10994        // If focus is transferred again to another view that's not a panel or a pane, we won't
10995        // show the panel as zoomed because it wasn't zoomed before.
10996        focus_other_view(cx);
10997        workspace.read_with(cx, |workspace, _| {
10998            assert_eq!(workspace.zoomed, None);
10999            assert_eq!(workspace.zoomed_position, None);
11000        });
11001
11002        // When the panel is activated, it is zoomed again.
11003        cx.dispatch_action(ToggleRightDock);
11004        workspace.read_with(cx, |workspace, _| {
11005            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11006            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11007        });
11008
11009        // Emitting a ZoomOut event unzooms the panel.
11010        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
11011        workspace.read_with(cx, |workspace, _| {
11012            assert_eq!(workspace.zoomed, None);
11013            assert_eq!(workspace.zoomed_position, None);
11014        });
11015
11016        // Emit closed event on panel 1, which is active
11017        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11018
11019        // Now the left dock is closed, because panel_1 was the active panel
11020        workspace.update(cx, |workspace, cx| {
11021            let right_dock = workspace.right_dock();
11022            assert!(!right_dock.read(cx).is_open());
11023        });
11024    }
11025
11026    #[gpui::test]
11027    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
11028        init_test(cx);
11029
11030        let fs = FakeFs::new(cx.background_executor.clone());
11031        let project = Project::test(fs, [], cx).await;
11032        let (workspace, cx) =
11033            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11034        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11035
11036        let dirty_regular_buffer = cx.new(|cx| {
11037            TestItem::new(cx)
11038                .with_dirty(true)
11039                .with_label("1.txt")
11040                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11041        });
11042        let dirty_regular_buffer_2 = cx.new(|cx| {
11043            TestItem::new(cx)
11044                .with_dirty(true)
11045                .with_label("2.txt")
11046                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11047        });
11048        let dirty_multi_buffer_with_both = cx.new(|cx| {
11049            TestItem::new(cx)
11050                .with_dirty(true)
11051                .with_buffer_kind(ItemBufferKind::Multibuffer)
11052                .with_label("Fake Project Search")
11053                .with_project_items(&[
11054                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11055                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11056                ])
11057        });
11058        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11059        workspace.update_in(cx, |workspace, window, cx| {
11060            workspace.add_item(
11061                pane.clone(),
11062                Box::new(dirty_regular_buffer.clone()),
11063                None,
11064                false,
11065                false,
11066                window,
11067                cx,
11068            );
11069            workspace.add_item(
11070                pane.clone(),
11071                Box::new(dirty_regular_buffer_2.clone()),
11072                None,
11073                false,
11074                false,
11075                window,
11076                cx,
11077            );
11078            workspace.add_item(
11079                pane.clone(),
11080                Box::new(dirty_multi_buffer_with_both.clone()),
11081                None,
11082                false,
11083                false,
11084                window,
11085                cx,
11086            );
11087        });
11088
11089        pane.update_in(cx, |pane, window, cx| {
11090            pane.activate_item(2, true, true, window, cx);
11091            assert_eq!(
11092                pane.active_item().unwrap().item_id(),
11093                multi_buffer_with_both_files_id,
11094                "Should select the multi buffer in the pane"
11095            );
11096        });
11097        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11098            pane.close_other_items(
11099                &CloseOtherItems {
11100                    save_intent: Some(SaveIntent::Save),
11101                    close_pinned: true,
11102                },
11103                None,
11104                window,
11105                cx,
11106            )
11107        });
11108        cx.background_executor.run_until_parked();
11109        assert!(!cx.has_pending_prompt());
11110        close_all_but_multi_buffer_task
11111            .await
11112            .expect("Closing all buffers but the multi buffer failed");
11113        pane.update(cx, |pane, cx| {
11114            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
11115            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
11116            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
11117            assert_eq!(pane.items_len(), 1);
11118            assert_eq!(
11119                pane.active_item().unwrap().item_id(),
11120                multi_buffer_with_both_files_id,
11121                "Should have only the multi buffer left in the pane"
11122            );
11123            assert!(
11124                dirty_multi_buffer_with_both.read(cx).is_dirty,
11125                "The multi buffer containing the unsaved buffer should still be dirty"
11126            );
11127        });
11128
11129        dirty_regular_buffer.update(cx, |buffer, cx| {
11130            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
11131        });
11132
11133        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11134            pane.close_active_item(
11135                &CloseActiveItem {
11136                    save_intent: Some(SaveIntent::Close),
11137                    close_pinned: false,
11138                },
11139                window,
11140                cx,
11141            )
11142        });
11143        cx.background_executor.run_until_parked();
11144        assert!(
11145            cx.has_pending_prompt(),
11146            "Dirty multi buffer should prompt a save dialog"
11147        );
11148        cx.simulate_prompt_answer("Save");
11149        cx.background_executor.run_until_parked();
11150        close_multi_buffer_task
11151            .await
11152            .expect("Closing the multi buffer failed");
11153        pane.update(cx, |pane, cx| {
11154            assert_eq!(
11155                dirty_multi_buffer_with_both.read(cx).save_count,
11156                1,
11157                "Multi buffer item should get be saved"
11158            );
11159            // Test impl does not save inner items, so we do not assert them
11160            assert_eq!(
11161                pane.items_len(),
11162                0,
11163                "No more items should be left in the pane"
11164            );
11165            assert!(pane.active_item().is_none());
11166        });
11167    }
11168
11169    #[gpui::test]
11170    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
11171        cx: &mut TestAppContext,
11172    ) {
11173        init_test(cx);
11174
11175        let fs = FakeFs::new(cx.background_executor.clone());
11176        let project = Project::test(fs, [], cx).await;
11177        let (workspace, cx) =
11178            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11179        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11180
11181        let dirty_regular_buffer = cx.new(|cx| {
11182            TestItem::new(cx)
11183                .with_dirty(true)
11184                .with_label("1.txt")
11185                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11186        });
11187        let dirty_regular_buffer_2 = cx.new(|cx| {
11188            TestItem::new(cx)
11189                .with_dirty(true)
11190                .with_label("2.txt")
11191                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11192        });
11193        let clear_regular_buffer = cx.new(|cx| {
11194            TestItem::new(cx)
11195                .with_label("3.txt")
11196                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11197        });
11198
11199        let dirty_multi_buffer_with_both = cx.new(|cx| {
11200            TestItem::new(cx)
11201                .with_dirty(true)
11202                .with_buffer_kind(ItemBufferKind::Multibuffer)
11203                .with_label("Fake Project Search")
11204                .with_project_items(&[
11205                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11206                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11207                    clear_regular_buffer.read(cx).project_items[0].clone(),
11208                ])
11209        });
11210        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11211        workspace.update_in(cx, |workspace, window, cx| {
11212            workspace.add_item(
11213                pane.clone(),
11214                Box::new(dirty_regular_buffer.clone()),
11215                None,
11216                false,
11217                false,
11218                window,
11219                cx,
11220            );
11221            workspace.add_item(
11222                pane.clone(),
11223                Box::new(dirty_multi_buffer_with_both.clone()),
11224                None,
11225                false,
11226                false,
11227                window,
11228                cx,
11229            );
11230        });
11231
11232        pane.update_in(cx, |pane, window, cx| {
11233            pane.activate_item(1, true, true, window, cx);
11234            assert_eq!(
11235                pane.active_item().unwrap().item_id(),
11236                multi_buffer_with_both_files_id,
11237                "Should select the multi buffer in the pane"
11238            );
11239        });
11240        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11241            pane.close_active_item(
11242                &CloseActiveItem {
11243                    save_intent: None,
11244                    close_pinned: false,
11245                },
11246                window,
11247                cx,
11248            )
11249        });
11250        cx.background_executor.run_until_parked();
11251        assert!(
11252            cx.has_pending_prompt(),
11253            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
11254        );
11255    }
11256
11257    /// Tests that when `close_on_file_delete` is enabled, files are automatically
11258    /// closed when they are deleted from disk.
11259    #[gpui::test]
11260    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
11261        init_test(cx);
11262
11263        // Enable the close_on_disk_deletion setting
11264        cx.update_global(|store: &mut SettingsStore, cx| {
11265            store.update_user_settings(cx, |settings| {
11266                settings.workspace.close_on_file_delete = Some(true);
11267            });
11268        });
11269
11270        let fs = FakeFs::new(cx.background_executor.clone());
11271        let project = Project::test(fs, [], cx).await;
11272        let (workspace, cx) =
11273            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11274        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11275
11276        // Create a test item that simulates a file
11277        let item = cx.new(|cx| {
11278            TestItem::new(cx)
11279                .with_label("test.txt")
11280                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11281        });
11282
11283        // Add item to workspace
11284        workspace.update_in(cx, |workspace, window, cx| {
11285            workspace.add_item(
11286                pane.clone(),
11287                Box::new(item.clone()),
11288                None,
11289                false,
11290                false,
11291                window,
11292                cx,
11293            );
11294        });
11295
11296        // Verify the item is in the pane
11297        pane.read_with(cx, |pane, _| {
11298            assert_eq!(pane.items().count(), 1);
11299        });
11300
11301        // Simulate file deletion by setting the item's deleted state
11302        item.update(cx, |item, _| {
11303            item.set_has_deleted_file(true);
11304        });
11305
11306        // Emit UpdateTab event to trigger the close behavior
11307        cx.run_until_parked();
11308        item.update(cx, |_, cx| {
11309            cx.emit(ItemEvent::UpdateTab);
11310        });
11311
11312        // Allow the close operation to complete
11313        cx.run_until_parked();
11314
11315        // Verify the item was automatically closed
11316        pane.read_with(cx, |pane, _| {
11317            assert_eq!(
11318                pane.items().count(),
11319                0,
11320                "Item should be automatically closed when file is deleted"
11321            );
11322        });
11323    }
11324
11325    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11326    /// open with a strikethrough when they are deleted from disk.
11327    #[gpui::test]
11328    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11329        init_test(cx);
11330
11331        // Ensure close_on_disk_deletion is disabled (default)
11332        cx.update_global(|store: &mut SettingsStore, cx| {
11333            store.update_user_settings(cx, |settings| {
11334                settings.workspace.close_on_file_delete = Some(false);
11335            });
11336        });
11337
11338        let fs = FakeFs::new(cx.background_executor.clone());
11339        let project = Project::test(fs, [], cx).await;
11340        let (workspace, cx) =
11341            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11342        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11343
11344        // Create a test item that simulates a file
11345        let item = cx.new(|cx| {
11346            TestItem::new(cx)
11347                .with_label("test.txt")
11348                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11349        });
11350
11351        // Add item to workspace
11352        workspace.update_in(cx, |workspace, window, cx| {
11353            workspace.add_item(
11354                pane.clone(),
11355                Box::new(item.clone()),
11356                None,
11357                false,
11358                false,
11359                window,
11360                cx,
11361            );
11362        });
11363
11364        // Verify the item is in the pane
11365        pane.read_with(cx, |pane, _| {
11366            assert_eq!(pane.items().count(), 1);
11367        });
11368
11369        // Simulate file deletion
11370        item.update(cx, |item, _| {
11371            item.set_has_deleted_file(true);
11372        });
11373
11374        // Emit UpdateTab event
11375        cx.run_until_parked();
11376        item.update(cx, |_, cx| {
11377            cx.emit(ItemEvent::UpdateTab);
11378        });
11379
11380        // Allow any potential close operation to complete
11381        cx.run_until_parked();
11382
11383        // Verify the item remains open (with strikethrough)
11384        pane.read_with(cx, |pane, _| {
11385            assert_eq!(
11386                pane.items().count(),
11387                1,
11388                "Item should remain open when close_on_disk_deletion is disabled"
11389            );
11390        });
11391
11392        // Verify the item shows as deleted
11393        item.read_with(cx, |item, _| {
11394            assert!(
11395                item.has_deleted_file,
11396                "Item should be marked as having deleted file"
11397            );
11398        });
11399    }
11400
11401    /// Tests that dirty files are not automatically closed when deleted from disk,
11402    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11403    /// unsaved changes without being prompted.
11404    #[gpui::test]
11405    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11406        init_test(cx);
11407
11408        // Enable the close_on_file_delete setting
11409        cx.update_global(|store: &mut SettingsStore, cx| {
11410            store.update_user_settings(cx, |settings| {
11411                settings.workspace.close_on_file_delete = Some(true);
11412            });
11413        });
11414
11415        let fs = FakeFs::new(cx.background_executor.clone());
11416        let project = Project::test(fs, [], cx).await;
11417        let (workspace, cx) =
11418            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11419        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11420
11421        // Create a dirty test item
11422        let item = cx.new(|cx| {
11423            TestItem::new(cx)
11424                .with_dirty(true)
11425                .with_label("test.txt")
11426                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11427        });
11428
11429        // Add item to workspace
11430        workspace.update_in(cx, |workspace, window, cx| {
11431            workspace.add_item(
11432                pane.clone(),
11433                Box::new(item.clone()),
11434                None,
11435                false,
11436                false,
11437                window,
11438                cx,
11439            );
11440        });
11441
11442        // Simulate file deletion
11443        item.update(cx, |item, _| {
11444            item.set_has_deleted_file(true);
11445        });
11446
11447        // Emit UpdateTab event to trigger the close behavior
11448        cx.run_until_parked();
11449        item.update(cx, |_, cx| {
11450            cx.emit(ItemEvent::UpdateTab);
11451        });
11452
11453        // Allow any potential close operation to complete
11454        cx.run_until_parked();
11455
11456        // Verify the item remains open (dirty files are not auto-closed)
11457        pane.read_with(cx, |pane, _| {
11458            assert_eq!(
11459                pane.items().count(),
11460                1,
11461                "Dirty items should not be automatically closed even when file is deleted"
11462            );
11463        });
11464
11465        // Verify the item is marked as deleted and still dirty
11466        item.read_with(cx, |item, _| {
11467            assert!(
11468                item.has_deleted_file,
11469                "Item should be marked as having deleted file"
11470            );
11471            assert!(item.is_dirty, "Item should still be dirty");
11472        });
11473    }
11474
11475    /// Tests that navigation history is cleaned up when files are auto-closed
11476    /// due to deletion from disk.
11477    #[gpui::test]
11478    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11479        init_test(cx);
11480
11481        // Enable the close_on_file_delete setting
11482        cx.update_global(|store: &mut SettingsStore, cx| {
11483            store.update_user_settings(cx, |settings| {
11484                settings.workspace.close_on_file_delete = Some(true);
11485            });
11486        });
11487
11488        let fs = FakeFs::new(cx.background_executor.clone());
11489        let project = Project::test(fs, [], cx).await;
11490        let (workspace, cx) =
11491            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11492        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11493
11494        // Create test items
11495        let item1 = cx.new(|cx| {
11496            TestItem::new(cx)
11497                .with_label("test1.txt")
11498                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11499        });
11500        let item1_id = item1.item_id();
11501
11502        let item2 = cx.new(|cx| {
11503            TestItem::new(cx)
11504                .with_label("test2.txt")
11505                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11506        });
11507
11508        // Add items to workspace
11509        workspace.update_in(cx, |workspace, window, cx| {
11510            workspace.add_item(
11511                pane.clone(),
11512                Box::new(item1.clone()),
11513                None,
11514                false,
11515                false,
11516                window,
11517                cx,
11518            );
11519            workspace.add_item(
11520                pane.clone(),
11521                Box::new(item2.clone()),
11522                None,
11523                false,
11524                false,
11525                window,
11526                cx,
11527            );
11528        });
11529
11530        // Activate item1 to ensure it gets navigation entries
11531        pane.update_in(cx, |pane, window, cx| {
11532            pane.activate_item(0, true, true, window, cx);
11533        });
11534
11535        // Switch to item2 and back to create navigation history
11536        pane.update_in(cx, |pane, window, cx| {
11537            pane.activate_item(1, true, true, window, cx);
11538        });
11539        cx.run_until_parked();
11540
11541        pane.update_in(cx, |pane, window, cx| {
11542            pane.activate_item(0, true, true, window, cx);
11543        });
11544        cx.run_until_parked();
11545
11546        // Simulate file deletion for item1
11547        item1.update(cx, |item, _| {
11548            item.set_has_deleted_file(true);
11549        });
11550
11551        // Emit UpdateTab event to trigger the close behavior
11552        item1.update(cx, |_, cx| {
11553            cx.emit(ItemEvent::UpdateTab);
11554        });
11555        cx.run_until_parked();
11556
11557        // Verify item1 was closed
11558        pane.read_with(cx, |pane, _| {
11559            assert_eq!(
11560                pane.items().count(),
11561                1,
11562                "Should have 1 item remaining after auto-close"
11563            );
11564        });
11565
11566        // Check navigation history after close
11567        let has_item = pane.read_with(cx, |pane, cx| {
11568            let mut has_item = false;
11569            pane.nav_history().for_each_entry(cx, |entry, _| {
11570                if entry.item.id() == item1_id {
11571                    has_item = true;
11572                }
11573            });
11574            has_item
11575        });
11576
11577        assert!(
11578            !has_item,
11579            "Navigation history should not contain closed item entries"
11580        );
11581    }
11582
11583    #[gpui::test]
11584    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11585        cx: &mut TestAppContext,
11586    ) {
11587        init_test(cx);
11588
11589        let fs = FakeFs::new(cx.background_executor.clone());
11590        let project = Project::test(fs, [], cx).await;
11591        let (workspace, cx) =
11592            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11593        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11594
11595        let dirty_regular_buffer = cx.new(|cx| {
11596            TestItem::new(cx)
11597                .with_dirty(true)
11598                .with_label("1.txt")
11599                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11600        });
11601        let dirty_regular_buffer_2 = cx.new(|cx| {
11602            TestItem::new(cx)
11603                .with_dirty(true)
11604                .with_label("2.txt")
11605                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11606        });
11607        let clear_regular_buffer = cx.new(|cx| {
11608            TestItem::new(cx)
11609                .with_label("3.txt")
11610                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11611        });
11612
11613        let dirty_multi_buffer = cx.new(|cx| {
11614            TestItem::new(cx)
11615                .with_dirty(true)
11616                .with_buffer_kind(ItemBufferKind::Multibuffer)
11617                .with_label("Fake Project Search")
11618                .with_project_items(&[
11619                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11620                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11621                    clear_regular_buffer.read(cx).project_items[0].clone(),
11622                ])
11623        });
11624        workspace.update_in(cx, |workspace, window, cx| {
11625            workspace.add_item(
11626                pane.clone(),
11627                Box::new(dirty_regular_buffer.clone()),
11628                None,
11629                false,
11630                false,
11631                window,
11632                cx,
11633            );
11634            workspace.add_item(
11635                pane.clone(),
11636                Box::new(dirty_regular_buffer_2.clone()),
11637                None,
11638                false,
11639                false,
11640                window,
11641                cx,
11642            );
11643            workspace.add_item(
11644                pane.clone(),
11645                Box::new(dirty_multi_buffer.clone()),
11646                None,
11647                false,
11648                false,
11649                window,
11650                cx,
11651            );
11652        });
11653
11654        pane.update_in(cx, |pane, window, cx| {
11655            pane.activate_item(2, true, true, window, cx);
11656            assert_eq!(
11657                pane.active_item().unwrap().item_id(),
11658                dirty_multi_buffer.item_id(),
11659                "Should select the multi buffer in the pane"
11660            );
11661        });
11662        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11663            pane.close_active_item(
11664                &CloseActiveItem {
11665                    save_intent: None,
11666                    close_pinned: false,
11667                },
11668                window,
11669                cx,
11670            )
11671        });
11672        cx.background_executor.run_until_parked();
11673        assert!(
11674            !cx.has_pending_prompt(),
11675            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11676        );
11677        close_multi_buffer_task
11678            .await
11679            .expect("Closing multi buffer failed");
11680        pane.update(cx, |pane, cx| {
11681            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11682            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11683            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11684            assert_eq!(
11685                pane.items()
11686                    .map(|item| item.item_id())
11687                    .sorted()
11688                    .collect::<Vec<_>>(),
11689                vec![
11690                    dirty_regular_buffer.item_id(),
11691                    dirty_regular_buffer_2.item_id(),
11692                ],
11693                "Should have no multi buffer left in the pane"
11694            );
11695            assert!(dirty_regular_buffer.read(cx).is_dirty);
11696            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11697        });
11698    }
11699
11700    #[gpui::test]
11701    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11702        init_test(cx);
11703        let fs = FakeFs::new(cx.executor());
11704        let project = Project::test(fs, [], cx).await;
11705        let (workspace, cx) =
11706            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11707
11708        // Add a new panel to the right dock, opening the dock and setting the
11709        // focus to the new panel.
11710        let panel = workspace.update_in(cx, |workspace, window, cx| {
11711            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11712            workspace.add_panel(panel.clone(), window, cx);
11713
11714            workspace
11715                .right_dock()
11716                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11717
11718            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11719
11720            panel
11721        });
11722
11723        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11724        // panel to the next valid position which, in this case, is the left
11725        // dock.
11726        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11727        workspace.update(cx, |workspace, cx| {
11728            assert!(workspace.left_dock().read(cx).is_open());
11729            assert_eq!(panel.read(cx).position, DockPosition::Left);
11730        });
11731
11732        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11733        // panel to the next valid position which, in this case, is the bottom
11734        // dock.
11735        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11736        workspace.update(cx, |workspace, cx| {
11737            assert!(workspace.bottom_dock().read(cx).is_open());
11738            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11739        });
11740
11741        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11742        // around moving the panel to its initial position, the right dock.
11743        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11744        workspace.update(cx, |workspace, cx| {
11745            assert!(workspace.right_dock().read(cx).is_open());
11746            assert_eq!(panel.read(cx).position, DockPosition::Right);
11747        });
11748
11749        // Remove focus from the panel, ensuring that, if the panel is not
11750        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11751        // the panel's position, so the panel is still in the right dock.
11752        workspace.update_in(cx, |workspace, window, cx| {
11753            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11754        });
11755
11756        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11757        workspace.update(cx, |workspace, cx| {
11758            assert!(workspace.right_dock().read(cx).is_open());
11759            assert_eq!(panel.read(cx).position, DockPosition::Right);
11760        });
11761    }
11762
11763    #[gpui::test]
11764    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11765        init_test(cx);
11766
11767        let fs = FakeFs::new(cx.executor());
11768        let project = Project::test(fs, [], cx).await;
11769        let (workspace, cx) =
11770            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11771
11772        let item_1 = cx.new(|cx| {
11773            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11774        });
11775        workspace.update_in(cx, |workspace, window, cx| {
11776            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11777            workspace.move_item_to_pane_in_direction(
11778                &MoveItemToPaneInDirection {
11779                    direction: SplitDirection::Right,
11780                    focus: true,
11781                    clone: false,
11782                },
11783                window,
11784                cx,
11785            );
11786            workspace.move_item_to_pane_at_index(
11787                &MoveItemToPane {
11788                    destination: 3,
11789                    focus: true,
11790                    clone: false,
11791                },
11792                window,
11793                cx,
11794            );
11795
11796            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11797            assert_eq!(
11798                pane_items_paths(&workspace.active_pane, cx),
11799                vec!["first.txt".to_string()],
11800                "Single item was not moved anywhere"
11801            );
11802        });
11803
11804        let item_2 = cx.new(|cx| {
11805            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11806        });
11807        workspace.update_in(cx, |workspace, window, cx| {
11808            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11809            assert_eq!(
11810                pane_items_paths(&workspace.panes[0], cx),
11811                vec!["first.txt".to_string(), "second.txt".to_string()],
11812            );
11813            workspace.move_item_to_pane_in_direction(
11814                &MoveItemToPaneInDirection {
11815                    direction: SplitDirection::Right,
11816                    focus: true,
11817                    clone: false,
11818                },
11819                window,
11820                cx,
11821            );
11822
11823            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11824            assert_eq!(
11825                pane_items_paths(&workspace.panes[0], cx),
11826                vec!["first.txt".to_string()],
11827                "After moving, one item should be left in the original pane"
11828            );
11829            assert_eq!(
11830                pane_items_paths(&workspace.panes[1], cx),
11831                vec!["second.txt".to_string()],
11832                "New item should have been moved to the new pane"
11833            );
11834        });
11835
11836        let item_3 = cx.new(|cx| {
11837            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11838        });
11839        workspace.update_in(cx, |workspace, window, cx| {
11840            let original_pane = workspace.panes[0].clone();
11841            workspace.set_active_pane(&original_pane, window, cx);
11842            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11843            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11844            assert_eq!(
11845                pane_items_paths(&workspace.active_pane, cx),
11846                vec!["first.txt".to_string(), "third.txt".to_string()],
11847                "New pane should be ready to move one item out"
11848            );
11849
11850            workspace.move_item_to_pane_at_index(
11851                &MoveItemToPane {
11852                    destination: 3,
11853                    focus: true,
11854                    clone: false,
11855                },
11856                window,
11857                cx,
11858            );
11859            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11860            assert_eq!(
11861                pane_items_paths(&workspace.active_pane, cx),
11862                vec!["first.txt".to_string()],
11863                "After moving, one item should be left in the original pane"
11864            );
11865            assert_eq!(
11866                pane_items_paths(&workspace.panes[1], cx),
11867                vec!["second.txt".to_string()],
11868                "Previously created pane should be unchanged"
11869            );
11870            assert_eq!(
11871                pane_items_paths(&workspace.panes[2], cx),
11872                vec!["third.txt".to_string()],
11873                "New item should have been moved to the new pane"
11874            );
11875        });
11876    }
11877
11878    #[gpui::test]
11879    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11880        init_test(cx);
11881
11882        let fs = FakeFs::new(cx.executor());
11883        let project = Project::test(fs, [], cx).await;
11884        let (workspace, cx) =
11885            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11886
11887        let item_1 = cx.new(|cx| {
11888            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11889        });
11890        workspace.update_in(cx, |workspace, window, cx| {
11891            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11892            workspace.move_item_to_pane_in_direction(
11893                &MoveItemToPaneInDirection {
11894                    direction: SplitDirection::Right,
11895                    focus: true,
11896                    clone: true,
11897                },
11898                window,
11899                cx,
11900            );
11901        });
11902        cx.run_until_parked();
11903        workspace.update_in(cx, |workspace, window, cx| {
11904            workspace.move_item_to_pane_at_index(
11905                &MoveItemToPane {
11906                    destination: 3,
11907                    focus: true,
11908                    clone: true,
11909                },
11910                window,
11911                cx,
11912            );
11913        });
11914        cx.run_until_parked();
11915
11916        workspace.update(cx, |workspace, cx| {
11917            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11918            for pane in workspace.panes() {
11919                assert_eq!(
11920                    pane_items_paths(pane, cx),
11921                    vec!["first.txt".to_string()],
11922                    "Single item exists in all panes"
11923                );
11924            }
11925        });
11926
11927        // verify that the active pane has been updated after waiting for the
11928        // pane focus event to fire and resolve
11929        workspace.read_with(cx, |workspace, _app| {
11930            assert_eq!(
11931                workspace.active_pane(),
11932                &workspace.panes[2],
11933                "The third pane should be the active one: {:?}",
11934                workspace.panes
11935            );
11936        })
11937    }
11938
11939    mod register_project_item_tests {
11940
11941        use super::*;
11942
11943        // View
11944        struct TestPngItemView {
11945            focus_handle: FocusHandle,
11946        }
11947        // Model
11948        struct TestPngItem {}
11949
11950        impl project::ProjectItem for TestPngItem {
11951            fn try_open(
11952                _project: &Entity<Project>,
11953                path: &ProjectPath,
11954                cx: &mut App,
11955            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11956                if path.path.extension().unwrap() == "png" {
11957                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
11958                } else {
11959                    None
11960                }
11961            }
11962
11963            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11964                None
11965            }
11966
11967            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11968                None
11969            }
11970
11971            fn is_dirty(&self) -> bool {
11972                false
11973            }
11974        }
11975
11976        impl Item for TestPngItemView {
11977            type Event = ();
11978            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11979                "".into()
11980            }
11981        }
11982        impl EventEmitter<()> for TestPngItemView {}
11983        impl Focusable for TestPngItemView {
11984            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11985                self.focus_handle.clone()
11986            }
11987        }
11988
11989        impl Render for TestPngItemView {
11990            fn render(
11991                &mut self,
11992                _window: &mut Window,
11993                _cx: &mut Context<Self>,
11994            ) -> impl IntoElement {
11995                Empty
11996            }
11997        }
11998
11999        impl ProjectItem for TestPngItemView {
12000            type Item = TestPngItem;
12001
12002            fn for_project_item(
12003                _project: Entity<Project>,
12004                _pane: Option<&Pane>,
12005                _item: Entity<Self::Item>,
12006                _: &mut Window,
12007                cx: &mut Context<Self>,
12008            ) -> Self
12009            where
12010                Self: Sized,
12011            {
12012                Self {
12013                    focus_handle: cx.focus_handle(),
12014                }
12015            }
12016        }
12017
12018        // View
12019        struct TestIpynbItemView {
12020            focus_handle: FocusHandle,
12021        }
12022        // Model
12023        struct TestIpynbItem {}
12024
12025        impl project::ProjectItem for TestIpynbItem {
12026            fn try_open(
12027                _project: &Entity<Project>,
12028                path: &ProjectPath,
12029                cx: &mut App,
12030            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12031                if path.path.extension().unwrap() == "ipynb" {
12032                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
12033                } else {
12034                    None
12035                }
12036            }
12037
12038            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12039                None
12040            }
12041
12042            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12043                None
12044            }
12045
12046            fn is_dirty(&self) -> bool {
12047                false
12048            }
12049        }
12050
12051        impl Item for TestIpynbItemView {
12052            type Event = ();
12053            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12054                "".into()
12055            }
12056        }
12057        impl EventEmitter<()> for TestIpynbItemView {}
12058        impl Focusable for TestIpynbItemView {
12059            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12060                self.focus_handle.clone()
12061            }
12062        }
12063
12064        impl Render for TestIpynbItemView {
12065            fn render(
12066                &mut self,
12067                _window: &mut Window,
12068                _cx: &mut Context<Self>,
12069            ) -> impl IntoElement {
12070                Empty
12071            }
12072        }
12073
12074        impl ProjectItem for TestIpynbItemView {
12075            type Item = TestIpynbItem;
12076
12077            fn for_project_item(
12078                _project: Entity<Project>,
12079                _pane: Option<&Pane>,
12080                _item: Entity<Self::Item>,
12081                _: &mut Window,
12082                cx: &mut Context<Self>,
12083            ) -> Self
12084            where
12085                Self: Sized,
12086            {
12087                Self {
12088                    focus_handle: cx.focus_handle(),
12089                }
12090            }
12091        }
12092
12093        struct TestAlternatePngItemView {
12094            focus_handle: FocusHandle,
12095        }
12096
12097        impl Item for TestAlternatePngItemView {
12098            type Event = ();
12099            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12100                "".into()
12101            }
12102        }
12103
12104        impl EventEmitter<()> for TestAlternatePngItemView {}
12105        impl Focusable for TestAlternatePngItemView {
12106            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12107                self.focus_handle.clone()
12108            }
12109        }
12110
12111        impl Render for TestAlternatePngItemView {
12112            fn render(
12113                &mut self,
12114                _window: &mut Window,
12115                _cx: &mut Context<Self>,
12116            ) -> impl IntoElement {
12117                Empty
12118            }
12119        }
12120
12121        impl ProjectItem for TestAlternatePngItemView {
12122            type Item = TestPngItem;
12123
12124            fn for_project_item(
12125                _project: Entity<Project>,
12126                _pane: Option<&Pane>,
12127                _item: Entity<Self::Item>,
12128                _: &mut Window,
12129                cx: &mut Context<Self>,
12130            ) -> Self
12131            where
12132                Self: Sized,
12133            {
12134                Self {
12135                    focus_handle: cx.focus_handle(),
12136                }
12137            }
12138        }
12139
12140        #[gpui::test]
12141        async fn test_register_project_item(cx: &mut TestAppContext) {
12142            init_test(cx);
12143
12144            cx.update(|cx| {
12145                register_project_item::<TestPngItemView>(cx);
12146                register_project_item::<TestIpynbItemView>(cx);
12147            });
12148
12149            let fs = FakeFs::new(cx.executor());
12150            fs.insert_tree(
12151                "/root1",
12152                json!({
12153                    "one.png": "BINARYDATAHERE",
12154                    "two.ipynb": "{ totally a notebook }",
12155                    "three.txt": "editing text, sure why not?"
12156                }),
12157            )
12158            .await;
12159
12160            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12161            let (workspace, cx) =
12162                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12163
12164            let worktree_id = project.update(cx, |project, cx| {
12165                project.worktrees(cx).next().unwrap().read(cx).id()
12166            });
12167
12168            let handle = workspace
12169                .update_in(cx, |workspace, window, cx| {
12170                    let project_path = (worktree_id, rel_path("one.png"));
12171                    workspace.open_path(project_path, None, true, window, cx)
12172                })
12173                .await
12174                .unwrap();
12175
12176            // Now we can check if the handle we got back errored or not
12177            assert_eq!(
12178                handle.to_any_view().entity_type(),
12179                TypeId::of::<TestPngItemView>()
12180            );
12181
12182            let handle = workspace
12183                .update_in(cx, |workspace, window, cx| {
12184                    let project_path = (worktree_id, rel_path("two.ipynb"));
12185                    workspace.open_path(project_path, None, true, window, cx)
12186                })
12187                .await
12188                .unwrap();
12189
12190            assert_eq!(
12191                handle.to_any_view().entity_type(),
12192                TypeId::of::<TestIpynbItemView>()
12193            );
12194
12195            let handle = workspace
12196                .update_in(cx, |workspace, window, cx| {
12197                    let project_path = (worktree_id, rel_path("three.txt"));
12198                    workspace.open_path(project_path, None, true, window, cx)
12199                })
12200                .await;
12201            assert!(handle.is_err());
12202        }
12203
12204        #[gpui::test]
12205        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
12206            init_test(cx);
12207
12208            cx.update(|cx| {
12209                register_project_item::<TestPngItemView>(cx);
12210                register_project_item::<TestAlternatePngItemView>(cx);
12211            });
12212
12213            let fs = FakeFs::new(cx.executor());
12214            fs.insert_tree(
12215                "/root1",
12216                json!({
12217                    "one.png": "BINARYDATAHERE",
12218                    "two.ipynb": "{ totally a notebook }",
12219                    "three.txt": "editing text, sure why not?"
12220                }),
12221            )
12222            .await;
12223            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12224            let (workspace, cx) =
12225                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12226            let worktree_id = project.update(cx, |project, cx| {
12227                project.worktrees(cx).next().unwrap().read(cx).id()
12228            });
12229
12230            let handle = workspace
12231                .update_in(cx, |workspace, window, cx| {
12232                    let project_path = (worktree_id, rel_path("one.png"));
12233                    workspace.open_path(project_path, None, true, window, cx)
12234                })
12235                .await
12236                .unwrap();
12237
12238            // This _must_ be the second item registered
12239            assert_eq!(
12240                handle.to_any_view().entity_type(),
12241                TypeId::of::<TestAlternatePngItemView>()
12242            );
12243
12244            let handle = workspace
12245                .update_in(cx, |workspace, window, cx| {
12246                    let project_path = (worktree_id, rel_path("three.txt"));
12247                    workspace.open_path(project_path, None, true, window, cx)
12248                })
12249                .await;
12250            assert!(handle.is_err());
12251        }
12252    }
12253
12254    #[gpui::test]
12255    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
12256        init_test(cx);
12257
12258        let fs = FakeFs::new(cx.executor());
12259        let project = Project::test(fs, [], cx).await;
12260        let (workspace, _cx) =
12261            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12262
12263        // Test with status bar shown (default)
12264        workspace.read_with(cx, |workspace, cx| {
12265            let visible = workspace.status_bar_visible(cx);
12266            assert!(visible, "Status bar should be visible by default");
12267        });
12268
12269        // Test with status bar hidden
12270        cx.update_global(|store: &mut SettingsStore, cx| {
12271            store.update_user_settings(cx, |settings| {
12272                settings.status_bar.get_or_insert_default().show = Some(false);
12273            });
12274        });
12275
12276        workspace.read_with(cx, |workspace, cx| {
12277            let visible = workspace.status_bar_visible(cx);
12278            assert!(!visible, "Status bar should be hidden when show is false");
12279        });
12280
12281        // Test with status bar shown explicitly
12282        cx.update_global(|store: &mut SettingsStore, cx| {
12283            store.update_user_settings(cx, |settings| {
12284                settings.status_bar.get_or_insert_default().show = Some(true);
12285            });
12286        });
12287
12288        workspace.read_with(cx, |workspace, cx| {
12289            let visible = workspace.status_bar_visible(cx);
12290            assert!(visible, "Status bar should be visible when show is true");
12291        });
12292    }
12293
12294    #[gpui::test]
12295    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
12296        init_test(cx);
12297
12298        let fs = FakeFs::new(cx.executor());
12299        let project = Project::test(fs, [], cx).await;
12300        let (workspace, cx) =
12301            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12302        let panel = workspace.update_in(cx, |workspace, window, cx| {
12303            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12304            workspace.add_panel(panel.clone(), window, cx);
12305
12306            workspace
12307                .right_dock()
12308                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12309
12310            panel
12311        });
12312
12313        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12314        let item_a = cx.new(TestItem::new);
12315        let item_b = cx.new(TestItem::new);
12316        let item_a_id = item_a.entity_id();
12317        let item_b_id = item_b.entity_id();
12318
12319        pane.update_in(cx, |pane, window, cx| {
12320            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
12321            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12322        });
12323
12324        pane.read_with(cx, |pane, _| {
12325            assert_eq!(pane.items_len(), 2);
12326            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
12327        });
12328
12329        workspace.update_in(cx, |workspace, window, cx| {
12330            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12331        });
12332
12333        workspace.update_in(cx, |_, window, cx| {
12334            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12335        });
12336
12337        // Assert that the `pane::CloseActiveItem` action is handled at the
12338        // workspace level when one of the dock panels is focused and, in that
12339        // case, the center pane's active item is closed but the focus is not
12340        // moved.
12341        cx.dispatch_action(pane::CloseActiveItem::default());
12342        cx.run_until_parked();
12343
12344        pane.read_with(cx, |pane, _| {
12345            assert_eq!(pane.items_len(), 1);
12346            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
12347        });
12348
12349        workspace.update_in(cx, |workspace, window, cx| {
12350            assert!(workspace.right_dock().read(cx).is_open());
12351            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12352        });
12353    }
12354
12355    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
12356        pane.read(cx)
12357            .items()
12358            .flat_map(|item| {
12359                item.project_paths(cx)
12360                    .into_iter()
12361                    .map(|path| path.path.display(PathStyle::local()).into_owned())
12362            })
12363            .collect()
12364    }
12365
12366    pub fn init_test(cx: &mut TestAppContext) {
12367        cx.update(|cx| {
12368            let settings_store = SettingsStore::test(cx);
12369            cx.set_global(settings_store);
12370            theme::init(theme::LoadThemes::JustBase, cx);
12371        });
12372    }
12373
12374    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
12375        let item = TestProjectItem::new(id, path, cx);
12376        item.update(cx, |item, _| {
12377            item.is_dirty = true;
12378        });
12379        item
12380    }
12381}