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,
  108    env,
  109    hash::Hash,
  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                    link,
 1350                } => this.show_notification(
 1351                    NotificationId::named(notification_id.clone()),
 1352                    cx,
 1353                    |cx| {
 1354                        let mut notification = MessageNotification::new(message.clone(), cx);
 1355                        if let Some(link) = link {
 1356                            notification = notification
 1357                                .more_info_message(link.label)
 1358                                .more_info_url(link.url);
 1359                        }
 1360
 1361                        cx.new(|_| notification)
 1362                    },
 1363                ),
 1364
 1365                project::Event::HideToast { notification_id } => {
 1366                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1367                }
 1368
 1369                project::Event::LanguageServerPrompt(request) => {
 1370                    struct LanguageServerPrompt;
 1371
 1372                    this.show_notification(
 1373                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1374                        cx,
 1375                        |cx| {
 1376                            cx.new(|cx| {
 1377                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1378                            })
 1379                        },
 1380                    );
 1381                }
 1382
 1383                project::Event::AgentLocationChanged => {
 1384                    this.handle_agent_location_changed(window, cx)
 1385                }
 1386
 1387                _ => {}
 1388            }
 1389            cx.notify()
 1390        })
 1391        .detach();
 1392
 1393        cx.subscribe_in(
 1394            &project.read(cx).breakpoint_store(),
 1395            window,
 1396            |workspace, _, event, window, cx| match event {
 1397                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1398                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1399                    workspace.serialize_workspace(window, cx);
 1400                }
 1401                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1402            },
 1403        )
 1404        .detach();
 1405        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1406            cx.subscribe_in(
 1407                &toolchain_store,
 1408                window,
 1409                |workspace, _, event, window, cx| match event {
 1410                    ToolchainStoreEvent::CustomToolchainsModified => {
 1411                        workspace.serialize_workspace(window, cx);
 1412                    }
 1413                    _ => {}
 1414                },
 1415            )
 1416            .detach();
 1417        }
 1418
 1419        cx.on_focus_lost(window, |this, window, cx| {
 1420            let focus_handle = this.focus_handle(cx);
 1421            window.focus(&focus_handle, cx);
 1422        })
 1423        .detach();
 1424
 1425        let weak_handle = cx.entity().downgrade();
 1426        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1427
 1428        let center_pane = cx.new(|cx| {
 1429            let mut center_pane = Pane::new(
 1430                weak_handle.clone(),
 1431                project.clone(),
 1432                pane_history_timestamp.clone(),
 1433                None,
 1434                NewFile.boxed_clone(),
 1435                true,
 1436                window,
 1437                cx,
 1438            );
 1439            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1440            center_pane
 1441        });
 1442        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1443            .detach();
 1444
 1445        window.focus(&center_pane.focus_handle(cx), cx);
 1446
 1447        cx.emit(Event::PaneAdded(center_pane.clone()));
 1448
 1449        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1450        app_state.workspace_store.update(cx, |store, _| {
 1451            store.workspaces.insert(window_handle);
 1452        });
 1453
 1454        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1455        let mut connection_status = app_state.client.status();
 1456        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1457            current_user.next().await;
 1458            connection_status.next().await;
 1459            let mut stream =
 1460                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1461
 1462            while stream.recv().await.is_some() {
 1463                this.update(cx, |_, cx| cx.notify())?;
 1464            }
 1465            anyhow::Ok(())
 1466        });
 1467
 1468        // All leader updates are enqueued and then processed in a single task, so
 1469        // that each asynchronous operation can be run in order.
 1470        let (leader_updates_tx, mut leader_updates_rx) =
 1471            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1472        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1473            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1474                Self::process_leader_update(&this, leader_id, update, cx)
 1475                    .await
 1476                    .log_err();
 1477            }
 1478
 1479            Ok(())
 1480        });
 1481
 1482        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1483        let modal_layer = cx.new(|_| ModalLayer::new());
 1484        let toast_layer = cx.new(|_| ToastLayer::new());
 1485        cx.subscribe(
 1486            &modal_layer,
 1487            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1488                cx.emit(Event::ModalOpened);
 1489            },
 1490        )
 1491        .detach();
 1492
 1493        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1494        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1495        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1496        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1497        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1498        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1499        let status_bar = cx.new(|cx| {
 1500            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1501            status_bar.add_left_item(left_dock_buttons, window, cx);
 1502            status_bar.add_right_item(right_dock_buttons, window, cx);
 1503            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1504            status_bar
 1505        });
 1506
 1507        let session_id = app_state.session.read(cx).id().to_owned();
 1508
 1509        let mut active_call = None;
 1510        if let Some(call) = ActiveCall::try_global(cx) {
 1511            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1512            active_call = Some((call, subscriptions));
 1513        }
 1514
 1515        let (serializable_items_tx, serializable_items_rx) =
 1516            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1517        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1518            Self::serialize_items(&this, serializable_items_rx, cx).await
 1519        });
 1520
 1521        let subscriptions = vec![
 1522            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1523            cx.observe_window_bounds(window, move |this, window, cx| {
 1524                if this.bounds_save_task_queued.is_some() {
 1525                    return;
 1526                }
 1527                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1528                    cx.background_executor()
 1529                        .timer(Duration::from_millis(100))
 1530                        .await;
 1531                    this.update_in(cx, |this, window, cx| {
 1532                        if let Some(display) = window.display(cx)
 1533                            && let Ok(display_uuid) = display.uuid()
 1534                        {
 1535                            let window_bounds = window.inner_window_bounds();
 1536                            let has_paths = !this.root_paths(cx).is_empty();
 1537                            if !has_paths {
 1538                                cx.background_executor()
 1539                                    .spawn(persistence::write_default_window_bounds(
 1540                                        window_bounds,
 1541                                        display_uuid,
 1542                                    ))
 1543                                    .detach_and_log_err(cx);
 1544                            }
 1545                            if let Some(database_id) = workspace_id {
 1546                                cx.background_executor()
 1547                                    .spawn(DB.set_window_open_status(
 1548                                        database_id,
 1549                                        SerializedWindowBounds(window_bounds),
 1550                                        display_uuid,
 1551                                    ))
 1552                                    .detach_and_log_err(cx);
 1553                            } else {
 1554                                cx.background_executor()
 1555                                    .spawn(persistence::write_default_window_bounds(
 1556                                        window_bounds,
 1557                                        display_uuid,
 1558                                    ))
 1559                                    .detach_and_log_err(cx);
 1560                            }
 1561                        }
 1562                        this.bounds_save_task_queued.take();
 1563                    })
 1564                    .ok();
 1565                }));
 1566                cx.notify();
 1567            }),
 1568            cx.observe_window_appearance(window, |_, window, cx| {
 1569                let window_appearance = window.appearance();
 1570
 1571                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1572
 1573                GlobalTheme::reload_theme(cx);
 1574                GlobalTheme::reload_icon_theme(cx);
 1575            }),
 1576            cx.on_release(move |this, cx| {
 1577                this.app_state.workspace_store.update(cx, move |store, _| {
 1578                    store.workspaces.remove(&window_handle);
 1579                })
 1580            }),
 1581        ];
 1582
 1583        cx.defer_in(window, move |this, window, cx| {
 1584            this.update_window_title(window, cx);
 1585            this.show_initial_notifications(cx);
 1586        });
 1587
 1588        let mut center = PaneGroup::new(center_pane.clone());
 1589        center.set_is_center(true);
 1590        center.mark_positions(cx);
 1591
 1592        Workspace {
 1593            weak_self: weak_handle.clone(),
 1594            zoomed: None,
 1595            zoomed_position: None,
 1596            previous_dock_drag_coordinates: None,
 1597            center,
 1598            panes: vec![center_pane.clone()],
 1599            panes_by_item: Default::default(),
 1600            active_pane: center_pane.clone(),
 1601            last_active_center_pane: Some(center_pane.downgrade()),
 1602            last_active_view_id: None,
 1603            status_bar,
 1604            modal_layer,
 1605            toast_layer,
 1606            titlebar_item: None,
 1607            active_worktree_override: None,
 1608            notifications: Notifications::default(),
 1609            suppressed_notifications: HashSet::default(),
 1610            left_dock,
 1611            bottom_dock,
 1612            right_dock,
 1613            project: project.clone(),
 1614            follower_states: Default::default(),
 1615            last_leaders_by_pane: Default::default(),
 1616            dispatching_keystrokes: Default::default(),
 1617            window_edited: false,
 1618            last_window_title: None,
 1619            dirty_items: Default::default(),
 1620            active_call,
 1621            database_id: workspace_id,
 1622            app_state,
 1623            _observe_current_user,
 1624            _apply_leader_updates,
 1625            _schedule_serialize_workspace: None,
 1626            _schedule_serialize_ssh_paths: None,
 1627            leader_updates_tx,
 1628            _subscriptions: subscriptions,
 1629            pane_history_timestamp,
 1630            workspace_actions: Default::default(),
 1631            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1632            bounds: Default::default(),
 1633            centered_layout: false,
 1634            bounds_save_task_queued: None,
 1635            on_prompt_for_new_path: None,
 1636            on_prompt_for_open_path: None,
 1637            terminal_provider: None,
 1638            debugger_provider: None,
 1639            serializable_items_tx,
 1640            _items_serializer,
 1641            session_id: Some(session_id),
 1642
 1643            scheduled_tasks: Vec::new(),
 1644            last_open_dock_positions: Vec::new(),
 1645            removing: false,
 1646            utility_panes: UtilityPaneState::default(),
 1647        }
 1648    }
 1649
 1650    pub fn new_local(
 1651        abs_paths: Vec<PathBuf>,
 1652        app_state: Arc<AppState>,
 1653        requesting_window: Option<WindowHandle<Workspace>>,
 1654        env: Option<HashMap<String, String>>,
 1655        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1656        cx: &mut App,
 1657    ) -> Task<
 1658        anyhow::Result<(
 1659            WindowHandle<Workspace>,
 1660            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1661        )>,
 1662    > {
 1663        let project_handle = Project::local(
 1664            app_state.client.clone(),
 1665            app_state.node_runtime.clone(),
 1666            app_state.user_store.clone(),
 1667            app_state.languages.clone(),
 1668            app_state.fs.clone(),
 1669            env,
 1670            Default::default(),
 1671            cx,
 1672        );
 1673
 1674        cx.spawn(async move |cx| {
 1675            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1676            for path in abs_paths.into_iter() {
 1677                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1678                    paths_to_open.push(canonical)
 1679                } else {
 1680                    paths_to_open.push(path)
 1681                }
 1682            }
 1683
 1684            let serialized_workspace =
 1685                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1686
 1687            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1688                paths_to_open = paths.ordered_paths().cloned().collect();
 1689                if !paths.is_lexicographically_ordered() {
 1690                    project_handle.update(cx, |project, cx| {
 1691                        project.set_worktrees_reordered(true, cx);
 1692                    });
 1693                }
 1694            }
 1695
 1696            // Get project paths for all of the abs_paths
 1697            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1698                Vec::with_capacity(paths_to_open.len());
 1699
 1700            for path in paths_to_open.into_iter() {
 1701                if let Some((_, project_entry)) = cx
 1702                    .update(|cx| {
 1703                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1704                    })
 1705                    .await
 1706                    .log_err()
 1707                {
 1708                    project_paths.push((path, Some(project_entry)));
 1709                } else {
 1710                    project_paths.push((path, None));
 1711                }
 1712            }
 1713
 1714            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1715                serialized_workspace.id
 1716            } else {
 1717                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1718            };
 1719
 1720            let toolchains = DB.toolchains(workspace_id).await?;
 1721
 1722            for (toolchain, worktree_path, path) in toolchains {
 1723                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1724                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1725                    this.find_worktree(&worktree_path, cx)
 1726                        .and_then(|(worktree, rel_path)| {
 1727                            if rel_path.is_empty() {
 1728                                Some(worktree.read(cx).id())
 1729                            } else {
 1730                                None
 1731                            }
 1732                        })
 1733                }) else {
 1734                    // We did not find a worktree with a given path, but that's whatever.
 1735                    continue;
 1736                };
 1737                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1738                    continue;
 1739                }
 1740
 1741                project_handle
 1742                    .update(cx, |this, cx| {
 1743                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1744                    })
 1745                    .await;
 1746            }
 1747            if let Some(workspace) = serialized_workspace.as_ref() {
 1748                project_handle.update(cx, |this, cx| {
 1749                    for (scope, toolchains) in &workspace.user_toolchains {
 1750                        for toolchain in toolchains {
 1751                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1752                        }
 1753                    }
 1754                });
 1755            }
 1756
 1757            let window = if let Some(window) = requesting_window {
 1758                let centered_layout = serialized_workspace
 1759                    .as_ref()
 1760                    .map(|w| w.centered_layout)
 1761                    .unwrap_or(false);
 1762
 1763                cx.update_window(window.into(), |_, window, cx| {
 1764                    window.replace_root(cx, |window, cx| {
 1765                        let mut workspace = Workspace::new(
 1766                            Some(workspace_id),
 1767                            project_handle.clone(),
 1768                            app_state.clone(),
 1769                            window,
 1770                            cx,
 1771                        );
 1772
 1773                        workspace.centered_layout = centered_layout;
 1774
 1775                        // Call init callback to add items before window renders
 1776                        if let Some(init) = init {
 1777                            init(&mut workspace, window, cx);
 1778                        }
 1779
 1780                        workspace
 1781                    });
 1782                })?;
 1783                window
 1784            } else {
 1785                let window_bounds_override = window_bounds_env_override();
 1786
 1787                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1788                    (Some(WindowBounds::Windowed(bounds)), None)
 1789                } else if let Some(workspace) = serialized_workspace.as_ref()
 1790                    && let Some(display) = workspace.display
 1791                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1792                {
 1793                    // Reopening an existing workspace - restore its saved bounds
 1794                    (Some(bounds.0), Some(display))
 1795                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1796                    // New or empty workspace - use the last known window bounds
 1797                    (Some(bounds), Some(display))
 1798                } else {
 1799                    // New window - let GPUI's default_bounds() handle cascading
 1800                    (None, None)
 1801                };
 1802
 1803                // Use the serialized workspace to construct the new window
 1804                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1805                options.window_bounds = window_bounds;
 1806                let centered_layout = serialized_workspace
 1807                    .as_ref()
 1808                    .map(|w| w.centered_layout)
 1809                    .unwrap_or(false);
 1810                cx.open_window(options, {
 1811                    let app_state = app_state.clone();
 1812                    let project_handle = project_handle.clone();
 1813                    move |window, cx| {
 1814                        cx.new(|cx| {
 1815                            let mut workspace = Workspace::new(
 1816                                Some(workspace_id),
 1817                                project_handle,
 1818                                app_state,
 1819                                window,
 1820                                cx,
 1821                            );
 1822                            workspace.centered_layout = centered_layout;
 1823
 1824                            // Call init callback to add items before window renders
 1825                            if let Some(init) = init {
 1826                                init(&mut workspace, window, cx);
 1827                            }
 1828
 1829                            workspace
 1830                        })
 1831                    }
 1832                })?
 1833            };
 1834
 1835            notify_if_database_failed(window, cx);
 1836            // Check if this is an empty workspace (no paths to open)
 1837            // An empty workspace is one where project_paths is empty
 1838            let is_empty_workspace = project_paths.is_empty();
 1839            // Check if serialized workspace has paths before it's moved
 1840            let serialized_workspace_has_paths = serialized_workspace
 1841                .as_ref()
 1842                .map(|ws| !ws.paths.is_empty())
 1843                .unwrap_or(false);
 1844
 1845            let opened_items = window
 1846                .update(cx, |_workspace, window, cx| {
 1847                    open_items(serialized_workspace, project_paths, window, cx)
 1848                })?
 1849                .await
 1850                .unwrap_or_default();
 1851
 1852            // Restore default dock state for empty workspaces
 1853            // Only restore if:
 1854            // 1. This is an empty workspace (no paths), AND
 1855            // 2. The serialized workspace either doesn't exist or has no paths
 1856            if is_empty_workspace && !serialized_workspace_has_paths {
 1857                if let Some(default_docks) = persistence::read_default_dock_state() {
 1858                    window
 1859                        .update(cx, |workspace, window, cx| {
 1860                            for (dock, serialized_dock) in [
 1861                                (&mut workspace.right_dock, default_docks.right),
 1862                                (&mut workspace.left_dock, default_docks.left),
 1863                                (&mut workspace.bottom_dock, default_docks.bottom),
 1864                            ]
 1865                            .iter_mut()
 1866                            {
 1867                                dock.update(cx, |dock, cx| {
 1868                                    dock.serialized_dock = Some(serialized_dock.clone());
 1869                                    dock.restore_state(window, cx);
 1870                                });
 1871                            }
 1872                            cx.notify();
 1873                        })
 1874                        .log_err();
 1875                }
 1876            }
 1877
 1878            window
 1879                .update(cx, |workspace, window, cx| {
 1880                    window.activate_window();
 1881                    workspace.update_history(cx);
 1882                })
 1883                .log_err();
 1884            Ok((window, opened_items))
 1885        })
 1886    }
 1887
 1888    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1889        self.weak_self.clone()
 1890    }
 1891
 1892    pub fn left_dock(&self) -> &Entity<Dock> {
 1893        &self.left_dock
 1894    }
 1895
 1896    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1897        &self.bottom_dock
 1898    }
 1899
 1900    pub fn set_bottom_dock_layout(
 1901        &mut self,
 1902        layout: BottomDockLayout,
 1903        window: &mut Window,
 1904        cx: &mut Context<Self>,
 1905    ) {
 1906        let fs = self.project().read(cx).fs();
 1907        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1908            content.workspace.bottom_dock_layout = Some(layout);
 1909        });
 1910
 1911        cx.notify();
 1912        self.serialize_workspace(window, cx);
 1913    }
 1914
 1915    pub fn right_dock(&self) -> &Entity<Dock> {
 1916        &self.right_dock
 1917    }
 1918
 1919    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1920        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1921    }
 1922
 1923    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1924        match position {
 1925            DockPosition::Left => &self.left_dock,
 1926            DockPosition::Bottom => &self.bottom_dock,
 1927            DockPosition::Right => &self.right_dock,
 1928        }
 1929    }
 1930
 1931    pub fn is_edited(&self) -> bool {
 1932        self.window_edited
 1933    }
 1934
 1935    pub fn add_panel<T: Panel>(
 1936        &mut self,
 1937        panel: Entity<T>,
 1938        window: &mut Window,
 1939        cx: &mut Context<Self>,
 1940    ) {
 1941        let focus_handle = panel.panel_focus_handle(cx);
 1942        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1943            .detach();
 1944
 1945        let dock_position = panel.position(window, cx);
 1946        let dock = self.dock_at_position(dock_position);
 1947
 1948        dock.update(cx, |dock, cx| {
 1949            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1950        });
 1951    }
 1952
 1953    pub fn remove_panel<T: Panel>(
 1954        &mut self,
 1955        panel: &Entity<T>,
 1956        window: &mut Window,
 1957        cx: &mut Context<Self>,
 1958    ) {
 1959        let mut found_in_dock = None;
 1960        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1961            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1962
 1963            if found {
 1964                found_in_dock = Some(dock.clone());
 1965            }
 1966        }
 1967        if let Some(found_in_dock) = found_in_dock {
 1968            let position = found_in_dock.read(cx).position();
 1969            let slot = utility_slot_for_dock_position(position);
 1970            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1971        }
 1972    }
 1973
 1974    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1975        &self.status_bar
 1976    }
 1977
 1978    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1979        StatusBarSettings::get_global(cx).show
 1980    }
 1981
 1982    pub fn app_state(&self) -> &Arc<AppState> {
 1983        &self.app_state
 1984    }
 1985
 1986    pub fn user_store(&self) -> &Entity<UserStore> {
 1987        &self.app_state.user_store
 1988    }
 1989
 1990    pub fn project(&self) -> &Entity<Project> {
 1991        &self.project
 1992    }
 1993
 1994    pub fn path_style(&self, cx: &App) -> PathStyle {
 1995        self.project.read(cx).path_style(cx)
 1996    }
 1997
 1998    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1999        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2000
 2001        for pane_handle in &self.panes {
 2002            let pane = pane_handle.read(cx);
 2003
 2004            for entry in pane.activation_history() {
 2005                history.insert(
 2006                    entry.entity_id,
 2007                    history
 2008                        .get(&entry.entity_id)
 2009                        .cloned()
 2010                        .unwrap_or(0)
 2011                        .max(entry.timestamp),
 2012                );
 2013            }
 2014        }
 2015
 2016        history
 2017    }
 2018
 2019    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2020        let mut recent_item: Option<Entity<T>> = None;
 2021        let mut recent_timestamp = 0;
 2022        for pane_handle in &self.panes {
 2023            let pane = pane_handle.read(cx);
 2024            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2025                pane.items().map(|item| (item.item_id(), item)).collect();
 2026            for entry in pane.activation_history() {
 2027                if entry.timestamp > recent_timestamp
 2028                    && let Some(&item) = item_map.get(&entry.entity_id)
 2029                    && let Some(typed_item) = item.act_as::<T>(cx)
 2030                {
 2031                    recent_timestamp = entry.timestamp;
 2032                    recent_item = Some(typed_item);
 2033                }
 2034            }
 2035        }
 2036        recent_item
 2037    }
 2038
 2039    pub fn recent_navigation_history_iter(
 2040        &self,
 2041        cx: &App,
 2042    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2043        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2044        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2045
 2046        for pane in &self.panes {
 2047            let pane = pane.read(cx);
 2048
 2049            pane.nav_history()
 2050                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2051                    if let Some(fs_path) = &fs_path {
 2052                        abs_paths_opened
 2053                            .entry(fs_path.clone())
 2054                            .or_default()
 2055                            .insert(project_path.clone());
 2056                    }
 2057                    let timestamp = entry.timestamp;
 2058                    match history.entry(project_path) {
 2059                        hash_map::Entry::Occupied(mut entry) => {
 2060                            let (_, old_timestamp) = entry.get();
 2061                            if &timestamp > old_timestamp {
 2062                                entry.insert((fs_path, timestamp));
 2063                            }
 2064                        }
 2065                        hash_map::Entry::Vacant(entry) => {
 2066                            entry.insert((fs_path, timestamp));
 2067                        }
 2068                    }
 2069                });
 2070
 2071            if let Some(item) = pane.active_item()
 2072                && let Some(project_path) = item.project_path(cx)
 2073            {
 2074                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2075
 2076                if let Some(fs_path) = &fs_path {
 2077                    abs_paths_opened
 2078                        .entry(fs_path.clone())
 2079                        .or_default()
 2080                        .insert(project_path.clone());
 2081                }
 2082
 2083                history.insert(project_path, (fs_path, std::usize::MAX));
 2084            }
 2085        }
 2086
 2087        history
 2088            .into_iter()
 2089            .sorted_by_key(|(_, (_, order))| *order)
 2090            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2091            .rev()
 2092            .filter(move |(history_path, abs_path)| {
 2093                let latest_project_path_opened = abs_path
 2094                    .as_ref()
 2095                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2096                    .and_then(|project_paths| {
 2097                        project_paths
 2098                            .iter()
 2099                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2100                    });
 2101
 2102                latest_project_path_opened.is_none_or(|path| path == history_path)
 2103            })
 2104    }
 2105
 2106    pub fn recent_navigation_history(
 2107        &self,
 2108        limit: Option<usize>,
 2109        cx: &App,
 2110    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2111        self.recent_navigation_history_iter(cx)
 2112            .take(limit.unwrap_or(usize::MAX))
 2113            .collect()
 2114    }
 2115
 2116    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2117        for pane in &self.panes {
 2118            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2119        }
 2120    }
 2121
 2122    fn navigate_history(
 2123        &mut self,
 2124        pane: WeakEntity<Pane>,
 2125        mode: NavigationMode,
 2126        window: &mut Window,
 2127        cx: &mut Context<Workspace>,
 2128    ) -> Task<Result<()>> {
 2129        self.navigate_history_impl(pane, mode, window, |history, cx| history.pop(mode, cx), cx)
 2130    }
 2131
 2132    fn navigate_tag_history(
 2133        &mut self,
 2134        pane: WeakEntity<Pane>,
 2135        mode: TagNavigationMode,
 2136        window: &mut Window,
 2137        cx: &mut Context<Workspace>,
 2138    ) -> Task<Result<()>> {
 2139        self.navigate_history_impl(
 2140            pane,
 2141            NavigationMode::Normal,
 2142            window,
 2143            |history, _cx| history.pop_tag(mode),
 2144            cx,
 2145        )
 2146    }
 2147
 2148    fn navigate_history_impl(
 2149        &mut self,
 2150        pane: WeakEntity<Pane>,
 2151        mode: NavigationMode,
 2152        window: &mut Window,
 2153        mut cb: impl FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2154        cx: &mut Context<Workspace>,
 2155    ) -> Task<Result<()>> {
 2156        let to_load = if let Some(pane) = pane.upgrade() {
 2157            pane.update(cx, |pane, cx| {
 2158                window.focus(&pane.focus_handle(cx), cx);
 2159                loop {
 2160                    // Retrieve the weak item handle from the history.
 2161                    let entry = cb(pane.nav_history_mut(), cx)?;
 2162
 2163                    // If the item is still present in this pane, then activate it.
 2164                    if let Some(index) = entry
 2165                        .item
 2166                        .upgrade()
 2167                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2168                    {
 2169                        let prev_active_item_index = pane.active_item_index();
 2170                        pane.nav_history_mut().set_mode(mode);
 2171                        pane.activate_item(index, true, true, window, cx);
 2172                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2173
 2174                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2175                        if let Some(data) = entry.data {
 2176                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2177                        }
 2178
 2179                        if navigated {
 2180                            break None;
 2181                        }
 2182                    } else {
 2183                        // If the item is no longer present in this pane, then retrieve its
 2184                        // path info in order to reopen it.
 2185                        break pane
 2186                            .nav_history()
 2187                            .path_for_item(entry.item.id())
 2188                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2189                    }
 2190                }
 2191            })
 2192        } else {
 2193            None
 2194        };
 2195
 2196        if let Some((project_path, abs_path, entry)) = to_load {
 2197            // If the item was no longer present, then load it again from its previous path, first try the local path
 2198            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2199
 2200            cx.spawn_in(window, async move  |workspace, cx| {
 2201                let open_by_project_path = open_by_project_path.await;
 2202                let mut navigated = false;
 2203                match open_by_project_path
 2204                    .with_context(|| format!("Navigating to {project_path:?}"))
 2205                {
 2206                    Ok((project_entry_id, build_item)) => {
 2207                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2208                            pane.nav_history_mut().set_mode(mode);
 2209                            pane.active_item().map(|p| p.item_id())
 2210                        })?;
 2211
 2212                        pane.update_in(cx, |pane, window, cx| {
 2213                            let item = pane.open_item(
 2214                                project_entry_id,
 2215                                project_path,
 2216                                true,
 2217                                entry.is_preview,
 2218                                true,
 2219                                None,
 2220                                window, cx,
 2221                                build_item,
 2222                            );
 2223                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2224                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2225                            if let Some(data) = entry.data {
 2226                                navigated |= item.navigate(data, window, cx);
 2227                            }
 2228                        })?;
 2229                    }
 2230                    Err(open_by_project_path_e) => {
 2231                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2232                        // and its worktree is now dropped
 2233                        if let Some(abs_path) = abs_path {
 2234                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2235                                pane.nav_history_mut().set_mode(mode);
 2236                                pane.active_item().map(|p| p.item_id())
 2237                            })?;
 2238                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2239                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2240                            })?;
 2241                            match open_by_abs_path
 2242                                .await
 2243                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2244                            {
 2245                                Ok(item) => {
 2246                                    pane.update_in(cx, |pane, window, cx| {
 2247                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2248                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2249                                        if let Some(data) = entry.data {
 2250                                            navigated |= item.navigate(data, window, cx);
 2251                                        }
 2252                                    })?;
 2253                                }
 2254                                Err(open_by_abs_path_e) => {
 2255                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2256                                }
 2257                            }
 2258                        }
 2259                    }
 2260                }
 2261
 2262                if !navigated {
 2263                    workspace
 2264                        .update_in(cx, |workspace, window, cx| {
 2265                            Self::navigate_history(workspace, pane, mode, window, cx)
 2266                        })?
 2267                        .await?;
 2268                }
 2269
 2270                Ok(())
 2271            })
 2272        } else {
 2273            Task::ready(Ok(()))
 2274        }
 2275    }
 2276
 2277    pub fn go_back(
 2278        &mut self,
 2279        pane: WeakEntity<Pane>,
 2280        window: &mut Window,
 2281        cx: &mut Context<Workspace>,
 2282    ) -> Task<Result<()>> {
 2283        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2284    }
 2285
 2286    pub fn go_forward(
 2287        &mut self,
 2288        pane: WeakEntity<Pane>,
 2289        window: &mut Window,
 2290        cx: &mut Context<Workspace>,
 2291    ) -> Task<Result<()>> {
 2292        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2293    }
 2294
 2295    pub fn reopen_closed_item(
 2296        &mut self,
 2297        window: &mut Window,
 2298        cx: &mut Context<Workspace>,
 2299    ) -> Task<Result<()>> {
 2300        self.navigate_history(
 2301            self.active_pane().downgrade(),
 2302            NavigationMode::ReopeningClosedItem,
 2303            window,
 2304            cx,
 2305        )
 2306    }
 2307
 2308    pub fn client(&self) -> &Arc<Client> {
 2309        &self.app_state.client
 2310    }
 2311
 2312    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2313        self.titlebar_item = Some(item);
 2314        cx.notify();
 2315    }
 2316
 2317    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2318        self.on_prompt_for_new_path = Some(prompt)
 2319    }
 2320
 2321    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2322        self.on_prompt_for_open_path = Some(prompt)
 2323    }
 2324
 2325    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2326        self.terminal_provider = Some(Box::new(provider));
 2327    }
 2328
 2329    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2330        self.debugger_provider = Some(Arc::new(provider));
 2331    }
 2332
 2333    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2334        self.debugger_provider.clone()
 2335    }
 2336
 2337    pub fn prompt_for_open_path(
 2338        &mut self,
 2339        path_prompt_options: PathPromptOptions,
 2340        lister: DirectoryLister,
 2341        window: &mut Window,
 2342        cx: &mut Context<Self>,
 2343    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2344        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2345            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2346            let rx = prompt(self, lister, window, cx);
 2347            self.on_prompt_for_open_path = Some(prompt);
 2348            rx
 2349        } else {
 2350            let (tx, rx) = oneshot::channel();
 2351            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2352
 2353            cx.spawn_in(window, async move |workspace, cx| {
 2354                let Ok(result) = abs_path.await else {
 2355                    return Ok(());
 2356                };
 2357
 2358                match result {
 2359                    Ok(result) => {
 2360                        tx.send(result).ok();
 2361                    }
 2362                    Err(err) => {
 2363                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2364                            workspace.show_portal_error(err.to_string(), cx);
 2365                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2366                            let rx = prompt(workspace, lister, window, cx);
 2367                            workspace.on_prompt_for_open_path = Some(prompt);
 2368                            rx
 2369                        })?;
 2370                        if let Ok(path) = rx.await {
 2371                            tx.send(path).ok();
 2372                        }
 2373                    }
 2374                };
 2375                anyhow::Ok(())
 2376            })
 2377            .detach();
 2378
 2379            rx
 2380        }
 2381    }
 2382
 2383    pub fn prompt_for_new_path(
 2384        &mut self,
 2385        lister: DirectoryLister,
 2386        suggested_name: Option<String>,
 2387        window: &mut Window,
 2388        cx: &mut Context<Self>,
 2389    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2390        if self.project.read(cx).is_via_collab()
 2391            || self.project.read(cx).is_via_remote_server()
 2392            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2393        {
 2394            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2395            let rx = prompt(self, lister, window, cx);
 2396            self.on_prompt_for_new_path = Some(prompt);
 2397            return rx;
 2398        }
 2399
 2400        let (tx, rx) = oneshot::channel();
 2401        cx.spawn_in(window, async move |workspace, cx| {
 2402            let abs_path = workspace.update(cx, |workspace, cx| {
 2403                let relative_to = workspace
 2404                    .most_recent_active_path(cx)
 2405                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2406                    .or_else(|| {
 2407                        let project = workspace.project.read(cx);
 2408                        project.visible_worktrees(cx).find_map(|worktree| {
 2409                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2410                        })
 2411                    })
 2412                    .or_else(std::env::home_dir)
 2413                    .unwrap_or_else(|| PathBuf::from(""));
 2414                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2415            })?;
 2416            let abs_path = match abs_path.await? {
 2417                Ok(path) => path,
 2418                Err(err) => {
 2419                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2420                        workspace.show_portal_error(err.to_string(), cx);
 2421
 2422                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2423                        let rx = prompt(workspace, lister, window, cx);
 2424                        workspace.on_prompt_for_new_path = Some(prompt);
 2425                        rx
 2426                    })?;
 2427                    if let Ok(path) = rx.await {
 2428                        tx.send(path).ok();
 2429                    }
 2430                    return anyhow::Ok(());
 2431                }
 2432            };
 2433
 2434            tx.send(abs_path.map(|path| vec![path])).ok();
 2435            anyhow::Ok(())
 2436        })
 2437        .detach();
 2438
 2439        rx
 2440    }
 2441
 2442    pub fn titlebar_item(&self) -> Option<AnyView> {
 2443        self.titlebar_item.clone()
 2444    }
 2445
 2446    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2447    /// When set, git-related operations should use this worktree instead of deriving
 2448    /// the active worktree from the focused file.
 2449    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2450        self.active_worktree_override
 2451    }
 2452
 2453    pub fn set_active_worktree_override(
 2454        &mut self,
 2455        worktree_id: Option<WorktreeId>,
 2456        cx: &mut Context<Self>,
 2457    ) {
 2458        self.active_worktree_override = worktree_id;
 2459        cx.notify();
 2460    }
 2461
 2462    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2463        self.active_worktree_override = None;
 2464        cx.notify();
 2465    }
 2466
 2467    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2468    ///
 2469    /// If the given workspace has a local project, then it will be passed
 2470    /// to the callback. Otherwise, a new empty window will be created.
 2471    pub fn with_local_workspace<T, F>(
 2472        &mut self,
 2473        window: &mut Window,
 2474        cx: &mut Context<Self>,
 2475        callback: F,
 2476    ) -> Task<Result<T>>
 2477    where
 2478        T: 'static,
 2479        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2480    {
 2481        if self.project.read(cx).is_local() {
 2482            Task::ready(Ok(callback(self, window, cx)))
 2483        } else {
 2484            let env = self.project.read(cx).cli_environment(cx);
 2485            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2486            cx.spawn_in(window, async move |_vh, cx| {
 2487                let (workspace, _) = task.await?;
 2488                workspace.update(cx, callback)
 2489            })
 2490        }
 2491    }
 2492
 2493    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2494    ///
 2495    /// If the given workspace has a local project, then it will be passed
 2496    /// to the callback. Otherwise, a new empty window will be created.
 2497    pub fn with_local_or_wsl_workspace<T, F>(
 2498        &mut self,
 2499        window: &mut Window,
 2500        cx: &mut Context<Self>,
 2501        callback: F,
 2502    ) -> Task<Result<T>>
 2503    where
 2504        T: 'static,
 2505        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2506    {
 2507        let project = self.project.read(cx);
 2508        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2509            Task::ready(Ok(callback(self, window, cx)))
 2510        } else {
 2511            let env = self.project.read(cx).cli_environment(cx);
 2512            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2513            cx.spawn_in(window, async move |_vh, cx| {
 2514                let (workspace, _) = task.await?;
 2515                workspace.update(cx, callback)
 2516            })
 2517        }
 2518    }
 2519
 2520    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2521        self.project.read(cx).worktrees(cx)
 2522    }
 2523
 2524    pub fn visible_worktrees<'a>(
 2525        &self,
 2526        cx: &'a App,
 2527    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2528        self.project.read(cx).visible_worktrees(cx)
 2529    }
 2530
 2531    #[cfg(any(test, feature = "test-support"))]
 2532    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2533        let futures = self
 2534            .worktrees(cx)
 2535            .filter_map(|worktree| worktree.read(cx).as_local())
 2536            .map(|worktree| worktree.scan_complete())
 2537            .collect::<Vec<_>>();
 2538        async move {
 2539            for future in futures {
 2540                future.await;
 2541            }
 2542        }
 2543    }
 2544
 2545    pub fn close_global(cx: &mut App) {
 2546        cx.defer(|cx| {
 2547            cx.windows().iter().find(|window| {
 2548                window
 2549                    .update(cx, |_, window, _| {
 2550                        if window.is_window_active() {
 2551                            //This can only get called when the window's project connection has been lost
 2552                            //so we don't need to prompt the user for anything and instead just close the window
 2553                            window.remove_window();
 2554                            true
 2555                        } else {
 2556                            false
 2557                        }
 2558                    })
 2559                    .unwrap_or(false)
 2560            });
 2561        });
 2562    }
 2563
 2564    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2565        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2566        cx.spawn_in(window, async move |_, cx| {
 2567            if prepare.await? {
 2568                cx.update(|window, _cx| window.remove_window())?;
 2569            }
 2570            anyhow::Ok(())
 2571        })
 2572        .detach_and_log_err(cx)
 2573    }
 2574
 2575    pub fn move_focused_panel_to_next_position(
 2576        &mut self,
 2577        _: &MoveFocusedPanelToNextPosition,
 2578        window: &mut Window,
 2579        cx: &mut Context<Self>,
 2580    ) {
 2581        let docks = self.all_docks();
 2582        let active_dock = docks
 2583            .into_iter()
 2584            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2585
 2586        if let Some(dock) = active_dock {
 2587            dock.update(cx, |dock, cx| {
 2588                let active_panel = dock
 2589                    .active_panel()
 2590                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2591
 2592                if let Some(panel) = active_panel {
 2593                    panel.move_to_next_position(window, cx);
 2594                }
 2595            })
 2596        }
 2597    }
 2598
 2599    pub fn prepare_to_close(
 2600        &mut self,
 2601        close_intent: CloseIntent,
 2602        window: &mut Window,
 2603        cx: &mut Context<Self>,
 2604    ) -> Task<Result<bool>> {
 2605        let active_call = self.active_call().cloned();
 2606
 2607        cx.spawn_in(window, async move |this, cx| {
 2608            this.update(cx, |this, _| {
 2609                if close_intent == CloseIntent::CloseWindow {
 2610                    this.removing = true;
 2611                }
 2612            })?;
 2613
 2614            let workspace_count = cx.update(|_window, cx| {
 2615                cx.windows()
 2616                    .iter()
 2617                    .filter(|window| window.downcast::<Workspace>().is_some())
 2618                    .count()
 2619            })?;
 2620
 2621            #[cfg(target_os = "macos")]
 2622            let save_last_workspace = false;
 2623
 2624            // On Linux and Windows, closing the last window should restore the last workspace.
 2625            #[cfg(not(target_os = "macos"))]
 2626            let save_last_workspace = {
 2627                let remaining_workspaces = cx.update(|_window, cx| {
 2628                    cx.windows()
 2629                        .iter()
 2630                        .filter_map(|window| window.downcast::<Workspace>())
 2631                        .filter_map(|workspace| {
 2632                            workspace
 2633                                .update(cx, |workspace, _, _| workspace.removing)
 2634                                .ok()
 2635                        })
 2636                        .filter(|removing| !removing)
 2637                        .count()
 2638                })?;
 2639
 2640                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2641            };
 2642
 2643            if let Some(active_call) = active_call
 2644                && workspace_count == 1
 2645                && active_call.read_with(cx, |call, _| call.room().is_some())
 2646            {
 2647                if close_intent == CloseIntent::CloseWindow {
 2648                    let answer = cx.update(|window, cx| {
 2649                        window.prompt(
 2650                            PromptLevel::Warning,
 2651                            "Do you want to leave the current call?",
 2652                            None,
 2653                            &["Close window and hang up", "Cancel"],
 2654                            cx,
 2655                        )
 2656                    })?;
 2657
 2658                    if answer.await.log_err() == Some(1) {
 2659                        return anyhow::Ok(false);
 2660                    } else {
 2661                        active_call
 2662                            .update(cx, |call, cx| call.hang_up(cx))
 2663                            .await
 2664                            .log_err();
 2665                    }
 2666                }
 2667                if close_intent == CloseIntent::ReplaceWindow {
 2668                    _ = active_call.update(cx, |this, cx| {
 2669                        let workspace = cx
 2670                            .windows()
 2671                            .iter()
 2672                            .filter_map(|window| window.downcast::<Workspace>())
 2673                            .next()
 2674                            .unwrap();
 2675                        let project = workspace.read(cx)?.project.clone();
 2676                        if project.read(cx).is_shared() {
 2677                            this.unshare_project(project, cx)?;
 2678                        }
 2679                        Ok::<_, anyhow::Error>(())
 2680                    })?;
 2681                }
 2682            }
 2683
 2684            let save_result = this
 2685                .update_in(cx, |this, window, cx| {
 2686                    this.save_all_internal(SaveIntent::Close, window, cx)
 2687                })?
 2688                .await;
 2689
 2690            // If we're not quitting, but closing, we remove the workspace from
 2691            // the current session.
 2692            if close_intent != CloseIntent::Quit
 2693                && !save_last_workspace
 2694                && save_result.as_ref().is_ok_and(|&res| res)
 2695            {
 2696                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2697                    .await;
 2698            }
 2699
 2700            save_result
 2701        })
 2702    }
 2703
 2704    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2705        self.save_all_internal(
 2706            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2707            window,
 2708            cx,
 2709        )
 2710        .detach_and_log_err(cx);
 2711    }
 2712
 2713    fn send_keystrokes(
 2714        &mut self,
 2715        action: &SendKeystrokes,
 2716        window: &mut Window,
 2717        cx: &mut Context<Self>,
 2718    ) {
 2719        let keystrokes: Vec<Keystroke> = action
 2720            .0
 2721            .split(' ')
 2722            .flat_map(|k| Keystroke::parse(k).log_err())
 2723            .map(|k| {
 2724                cx.keyboard_mapper()
 2725                    .map_key_equivalent(k, false)
 2726                    .inner()
 2727                    .clone()
 2728            })
 2729            .collect();
 2730        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2731    }
 2732
 2733    pub fn send_keystrokes_impl(
 2734        &mut self,
 2735        keystrokes: Vec<Keystroke>,
 2736        window: &mut Window,
 2737        cx: &mut Context<Self>,
 2738    ) -> Shared<Task<()>> {
 2739        let mut state = self.dispatching_keystrokes.borrow_mut();
 2740        if !state.dispatched.insert(keystrokes.clone()) {
 2741            cx.propagate();
 2742            return state.task.clone().unwrap();
 2743        }
 2744
 2745        state.queue.extend(keystrokes);
 2746
 2747        let keystrokes = self.dispatching_keystrokes.clone();
 2748        if state.task.is_none() {
 2749            state.task = Some(
 2750                window
 2751                    .spawn(cx, async move |cx| {
 2752                        // limit to 100 keystrokes to avoid infinite recursion.
 2753                        for _ in 0..100 {
 2754                            let mut state = keystrokes.borrow_mut();
 2755                            let Some(keystroke) = state.queue.pop_front() else {
 2756                                state.dispatched.clear();
 2757                                state.task.take();
 2758                                return;
 2759                            };
 2760                            drop(state);
 2761                            cx.update(|window, cx| {
 2762                                let focused = window.focused(cx);
 2763                                window.dispatch_keystroke(keystroke.clone(), cx);
 2764                                if window.focused(cx) != focused {
 2765                                    // dispatch_keystroke may cause the focus to change.
 2766                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2767                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2768                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2769                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2770                                    // )
 2771                                    window.draw(cx).clear();
 2772                                }
 2773                            })
 2774                            .ok();
 2775                        }
 2776
 2777                        *keystrokes.borrow_mut() = Default::default();
 2778                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2779                    })
 2780                    .shared(),
 2781            );
 2782        }
 2783        state.task.clone().unwrap()
 2784    }
 2785
 2786    fn save_all_internal(
 2787        &mut self,
 2788        mut save_intent: SaveIntent,
 2789        window: &mut Window,
 2790        cx: &mut Context<Self>,
 2791    ) -> Task<Result<bool>> {
 2792        if self.project.read(cx).is_disconnected(cx) {
 2793            return Task::ready(Ok(true));
 2794        }
 2795        let dirty_items = self
 2796            .panes
 2797            .iter()
 2798            .flat_map(|pane| {
 2799                pane.read(cx).items().filter_map(|item| {
 2800                    if item.is_dirty(cx) {
 2801                        item.tab_content_text(0, cx);
 2802                        Some((pane.downgrade(), item.boxed_clone()))
 2803                    } else {
 2804                        None
 2805                    }
 2806                })
 2807            })
 2808            .collect::<Vec<_>>();
 2809
 2810        let project = self.project.clone();
 2811        cx.spawn_in(window, async move |workspace, cx| {
 2812            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2813                let (serialize_tasks, remaining_dirty_items) =
 2814                    workspace.update_in(cx, |workspace, window, cx| {
 2815                        let mut remaining_dirty_items = Vec::new();
 2816                        let mut serialize_tasks = Vec::new();
 2817                        for (pane, item) in dirty_items {
 2818                            if let Some(task) = item
 2819                                .to_serializable_item_handle(cx)
 2820                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2821                            {
 2822                                serialize_tasks.push(task);
 2823                            } else {
 2824                                remaining_dirty_items.push((pane, item));
 2825                            }
 2826                        }
 2827                        (serialize_tasks, remaining_dirty_items)
 2828                    })?;
 2829
 2830                futures::future::try_join_all(serialize_tasks).await?;
 2831
 2832                if remaining_dirty_items.len() > 1 {
 2833                    let answer = workspace.update_in(cx, |_, window, cx| {
 2834                        let detail = Pane::file_names_for_prompt(
 2835                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2836                            cx,
 2837                        );
 2838                        window.prompt(
 2839                            PromptLevel::Warning,
 2840                            "Do you want to save all changes in the following files?",
 2841                            Some(&detail),
 2842                            &["Save all", "Discard all", "Cancel"],
 2843                            cx,
 2844                        )
 2845                    })?;
 2846                    match answer.await.log_err() {
 2847                        Some(0) => save_intent = SaveIntent::SaveAll,
 2848                        Some(1) => save_intent = SaveIntent::Skip,
 2849                        Some(2) => return Ok(false),
 2850                        _ => {}
 2851                    }
 2852                }
 2853
 2854                remaining_dirty_items
 2855            } else {
 2856                dirty_items
 2857            };
 2858
 2859            for (pane, item) in dirty_items {
 2860                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2861                    (
 2862                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2863                        item.project_entry_ids(cx),
 2864                    )
 2865                })?;
 2866                if (singleton || !project_entry_ids.is_empty())
 2867                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2868                {
 2869                    return Ok(false);
 2870                }
 2871            }
 2872            Ok(true)
 2873        })
 2874    }
 2875
 2876    pub fn open_workspace_for_paths(
 2877        &mut self,
 2878        replace_current_window: bool,
 2879        paths: Vec<PathBuf>,
 2880        window: &mut Window,
 2881        cx: &mut Context<Self>,
 2882    ) -> Task<Result<()>> {
 2883        let window_handle = window.window_handle().downcast::<Self>();
 2884        let is_remote = self.project.read(cx).is_via_collab();
 2885        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2886        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2887
 2888        let window_to_replace = if replace_current_window {
 2889            window_handle
 2890        } else if is_remote || has_worktree || has_dirty_items {
 2891            None
 2892        } else {
 2893            window_handle
 2894        };
 2895        let app_state = self.app_state.clone();
 2896
 2897        cx.spawn(async move |_, cx| {
 2898            cx.update(|cx| {
 2899                open_paths(
 2900                    &paths,
 2901                    app_state,
 2902                    OpenOptions {
 2903                        replace_window: window_to_replace,
 2904                        ..Default::default()
 2905                    },
 2906                    cx,
 2907                )
 2908            })
 2909            .await?;
 2910            Ok(())
 2911        })
 2912    }
 2913
 2914    #[allow(clippy::type_complexity)]
 2915    pub fn open_paths(
 2916        &mut self,
 2917        mut abs_paths: Vec<PathBuf>,
 2918        options: OpenOptions,
 2919        pane: Option<WeakEntity<Pane>>,
 2920        window: &mut Window,
 2921        cx: &mut Context<Self>,
 2922    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2923        let fs = self.app_state.fs.clone();
 2924
 2925        let caller_ordered_abs_paths = abs_paths.clone();
 2926
 2927        // Sort the paths to ensure we add worktrees for parents before their children.
 2928        abs_paths.sort_unstable();
 2929        cx.spawn_in(window, async move |this, cx| {
 2930            let mut tasks = Vec::with_capacity(abs_paths.len());
 2931
 2932            for abs_path in &abs_paths {
 2933                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2934                    OpenVisible::All => Some(true),
 2935                    OpenVisible::None => Some(false),
 2936                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2937                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2938                        Some(None) => Some(true),
 2939                        None => None,
 2940                    },
 2941                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2942                        Some(Some(metadata)) => Some(metadata.is_dir),
 2943                        Some(None) => Some(false),
 2944                        None => None,
 2945                    },
 2946                };
 2947                let project_path = match visible {
 2948                    Some(visible) => match this
 2949                        .update(cx, |this, cx| {
 2950                            Workspace::project_path_for_path(
 2951                                this.project.clone(),
 2952                                abs_path,
 2953                                visible,
 2954                                cx,
 2955                            )
 2956                        })
 2957                        .log_err()
 2958                    {
 2959                        Some(project_path) => project_path.await.log_err(),
 2960                        None => None,
 2961                    },
 2962                    None => None,
 2963                };
 2964
 2965                let this = this.clone();
 2966                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2967                let fs = fs.clone();
 2968                let pane = pane.clone();
 2969                let task = cx.spawn(async move |cx| {
 2970                    let (_worktree, project_path) = project_path?;
 2971                    if fs.is_dir(&abs_path).await {
 2972                        // Opening a directory should not race to update the active entry.
 2973                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 2974                        None
 2975                    } else {
 2976                        Some(
 2977                            this.update_in(cx, |this, window, cx| {
 2978                                this.open_path(
 2979                                    project_path,
 2980                                    pane,
 2981                                    options.focus.unwrap_or(true),
 2982                                    window,
 2983                                    cx,
 2984                                )
 2985                            })
 2986                            .ok()?
 2987                            .await,
 2988                        )
 2989                    }
 2990                });
 2991                tasks.push(task);
 2992            }
 2993
 2994            let results = futures::future::join_all(tasks).await;
 2995
 2996            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 2997            let mut winner: Option<(PathBuf, bool)> = None;
 2998            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 2999                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3000                    if !metadata.is_dir {
 3001                        winner = Some((abs_path, false));
 3002                        break;
 3003                    }
 3004                    if winner.is_none() {
 3005                        winner = Some((abs_path, true));
 3006                    }
 3007                } else if winner.is_none() {
 3008                    winner = Some((abs_path, false));
 3009                }
 3010            }
 3011
 3012            // Compute the winner entry id on the foreground thread and emit once, after all
 3013            // paths finish opening. This avoids races between concurrently-opening paths
 3014            // (directories in particular) and makes the resulting project panel selection
 3015            // deterministic.
 3016            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3017                'emit_winner: {
 3018                    let winner_abs_path: Arc<Path> =
 3019                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3020
 3021                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3022                        OpenVisible::All => true,
 3023                        OpenVisible::None => false,
 3024                        OpenVisible::OnlyFiles => !winner_is_dir,
 3025                        OpenVisible::OnlyDirectories => winner_is_dir,
 3026                    };
 3027
 3028                    let Some(worktree_task) = this
 3029                        .update(cx, |workspace, cx| {
 3030                            workspace.project.update(cx, |project, cx| {
 3031                                project.find_or_create_worktree(
 3032                                    winner_abs_path.as_ref(),
 3033                                    visible,
 3034                                    cx,
 3035                                )
 3036                            })
 3037                        })
 3038                        .ok()
 3039                    else {
 3040                        break 'emit_winner;
 3041                    };
 3042
 3043                    let Ok((worktree, _)) = worktree_task.await else {
 3044                        break 'emit_winner;
 3045                    };
 3046
 3047                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3048                        let worktree = worktree.read(cx);
 3049                        let worktree_abs_path = worktree.abs_path();
 3050                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3051                            worktree.root_entry()
 3052                        } else {
 3053                            winner_abs_path
 3054                                .strip_prefix(worktree_abs_path.as_ref())
 3055                                .ok()
 3056                                .and_then(|relative_path| {
 3057                                    let relative_path =
 3058                                        RelPath::new(relative_path, PathStyle::local())
 3059                                            .log_err()?;
 3060                                    worktree.entry_for_path(&relative_path)
 3061                                })
 3062                        }?;
 3063                        Some(entry.id)
 3064                    }) else {
 3065                        break 'emit_winner;
 3066                    };
 3067
 3068                    this.update(cx, |workspace, cx| {
 3069                        workspace.project.update(cx, |_, cx| {
 3070                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3071                        });
 3072                    })
 3073                    .ok();
 3074                }
 3075            }
 3076
 3077            results
 3078        })
 3079    }
 3080
 3081    pub fn open_resolved_path(
 3082        &mut self,
 3083        path: ResolvedPath,
 3084        window: &mut Window,
 3085        cx: &mut Context<Self>,
 3086    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3087        match path {
 3088            ResolvedPath::ProjectPath { project_path, .. } => {
 3089                self.open_path(project_path, None, true, window, cx)
 3090            }
 3091            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3092                PathBuf::from(path),
 3093                OpenOptions {
 3094                    visible: Some(OpenVisible::None),
 3095                    ..Default::default()
 3096                },
 3097                window,
 3098                cx,
 3099            ),
 3100        }
 3101    }
 3102
 3103    pub fn absolute_path_of_worktree(
 3104        &self,
 3105        worktree_id: WorktreeId,
 3106        cx: &mut Context<Self>,
 3107    ) -> Option<PathBuf> {
 3108        self.project
 3109            .read(cx)
 3110            .worktree_for_id(worktree_id, cx)
 3111            // TODO: use `abs_path` or `root_dir`
 3112            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3113    }
 3114
 3115    fn add_folder_to_project(
 3116        &mut self,
 3117        _: &AddFolderToProject,
 3118        window: &mut Window,
 3119        cx: &mut Context<Self>,
 3120    ) {
 3121        let project = self.project.read(cx);
 3122        if project.is_via_collab() {
 3123            self.show_error(
 3124                &anyhow!("You cannot add folders to someone else's project"),
 3125                cx,
 3126            );
 3127            return;
 3128        }
 3129        let paths = self.prompt_for_open_path(
 3130            PathPromptOptions {
 3131                files: false,
 3132                directories: true,
 3133                multiple: true,
 3134                prompt: None,
 3135            },
 3136            DirectoryLister::Project(self.project.clone()),
 3137            window,
 3138            cx,
 3139        );
 3140        cx.spawn_in(window, async move |this, cx| {
 3141            if let Some(paths) = paths.await.log_err().flatten() {
 3142                let results = this
 3143                    .update_in(cx, |this, window, cx| {
 3144                        this.open_paths(
 3145                            paths,
 3146                            OpenOptions {
 3147                                visible: Some(OpenVisible::All),
 3148                                ..Default::default()
 3149                            },
 3150                            None,
 3151                            window,
 3152                            cx,
 3153                        )
 3154                    })?
 3155                    .await;
 3156                for result in results.into_iter().flatten() {
 3157                    result.log_err();
 3158                }
 3159            }
 3160            anyhow::Ok(())
 3161        })
 3162        .detach_and_log_err(cx);
 3163    }
 3164
 3165    pub fn project_path_for_path(
 3166        project: Entity<Project>,
 3167        abs_path: &Path,
 3168        visible: bool,
 3169        cx: &mut App,
 3170    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3171        let entry = project.update(cx, |project, cx| {
 3172            project.find_or_create_worktree(abs_path, visible, cx)
 3173        });
 3174        cx.spawn(async move |cx| {
 3175            let (worktree, path) = entry.await?;
 3176            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3177            Ok((worktree, ProjectPath { worktree_id, path }))
 3178        })
 3179    }
 3180
 3181    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3182        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3183    }
 3184
 3185    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3186        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3187    }
 3188
 3189    pub fn items_of_type<'a, T: Item>(
 3190        &'a self,
 3191        cx: &'a App,
 3192    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3193        self.panes
 3194            .iter()
 3195            .flat_map(|pane| pane.read(cx).items_of_type())
 3196    }
 3197
 3198    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3199        self.active_pane().read(cx).active_item()
 3200    }
 3201
 3202    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3203        let item = self.active_item(cx)?;
 3204        item.to_any_view().downcast::<I>().ok()
 3205    }
 3206
 3207    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3208        self.active_item(cx).and_then(|item| item.project_path(cx))
 3209    }
 3210
 3211    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3212        self.recent_navigation_history_iter(cx)
 3213            .filter_map(|(path, abs_path)| {
 3214                let worktree = self
 3215                    .project
 3216                    .read(cx)
 3217                    .worktree_for_id(path.worktree_id, cx)?;
 3218                if worktree.read(cx).is_visible() {
 3219                    abs_path
 3220                } else {
 3221                    None
 3222                }
 3223            })
 3224            .next()
 3225    }
 3226
 3227    pub fn save_active_item(
 3228        &mut self,
 3229        save_intent: SaveIntent,
 3230        window: &mut Window,
 3231        cx: &mut App,
 3232    ) -> Task<Result<()>> {
 3233        let project = self.project.clone();
 3234        let pane = self.active_pane();
 3235        let item = pane.read(cx).active_item();
 3236        let pane = pane.downgrade();
 3237
 3238        window.spawn(cx, async move |cx| {
 3239            if let Some(item) = item {
 3240                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3241                    .await
 3242                    .map(|_| ())
 3243            } else {
 3244                Ok(())
 3245            }
 3246        })
 3247    }
 3248
 3249    pub fn close_inactive_items_and_panes(
 3250        &mut self,
 3251        action: &CloseInactiveTabsAndPanes,
 3252        window: &mut Window,
 3253        cx: &mut Context<Self>,
 3254    ) {
 3255        if let Some(task) = self.close_all_internal(
 3256            true,
 3257            action.save_intent.unwrap_or(SaveIntent::Close),
 3258            window,
 3259            cx,
 3260        ) {
 3261            task.detach_and_log_err(cx)
 3262        }
 3263    }
 3264
 3265    pub fn close_all_items_and_panes(
 3266        &mut self,
 3267        action: &CloseAllItemsAndPanes,
 3268        window: &mut Window,
 3269        cx: &mut Context<Self>,
 3270    ) {
 3271        if let Some(task) = self.close_all_internal(
 3272            false,
 3273            action.save_intent.unwrap_or(SaveIntent::Close),
 3274            window,
 3275            cx,
 3276        ) {
 3277            task.detach_and_log_err(cx)
 3278        }
 3279    }
 3280
 3281    fn close_all_internal(
 3282        &mut self,
 3283        retain_active_pane: bool,
 3284        save_intent: SaveIntent,
 3285        window: &mut Window,
 3286        cx: &mut Context<Self>,
 3287    ) -> Option<Task<Result<()>>> {
 3288        let current_pane = self.active_pane();
 3289
 3290        let mut tasks = Vec::new();
 3291
 3292        if retain_active_pane {
 3293            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3294                pane.close_other_items(
 3295                    &CloseOtherItems {
 3296                        save_intent: None,
 3297                        close_pinned: false,
 3298                    },
 3299                    None,
 3300                    window,
 3301                    cx,
 3302                )
 3303            });
 3304
 3305            tasks.push(current_pane_close);
 3306        }
 3307
 3308        for pane in self.panes() {
 3309            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3310                continue;
 3311            }
 3312
 3313            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3314                pane.close_all_items(
 3315                    &CloseAllItems {
 3316                        save_intent: Some(save_intent),
 3317                        close_pinned: false,
 3318                    },
 3319                    window,
 3320                    cx,
 3321                )
 3322            });
 3323
 3324            tasks.push(close_pane_items)
 3325        }
 3326
 3327        if tasks.is_empty() {
 3328            None
 3329        } else {
 3330            Some(cx.spawn_in(window, async move |_, _| {
 3331                for task in tasks {
 3332                    task.await?
 3333                }
 3334                Ok(())
 3335            }))
 3336        }
 3337    }
 3338
 3339    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3340        self.dock_at_position(position).read(cx).is_open()
 3341    }
 3342
 3343    pub fn toggle_dock(
 3344        &mut self,
 3345        dock_side: DockPosition,
 3346        window: &mut Window,
 3347        cx: &mut Context<Self>,
 3348    ) {
 3349        let mut focus_center = false;
 3350        let mut reveal_dock = false;
 3351
 3352        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3353        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3354
 3355        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3356            telemetry::event!(
 3357                "Panel Button Clicked",
 3358                name = panel.persistent_name(),
 3359                toggle_state = !was_visible
 3360            );
 3361        }
 3362        if was_visible {
 3363            self.save_open_dock_positions(cx);
 3364        }
 3365
 3366        let dock = self.dock_at_position(dock_side);
 3367        dock.update(cx, |dock, cx| {
 3368            dock.set_open(!was_visible, window, cx);
 3369
 3370            if dock.active_panel().is_none() {
 3371                let Some(panel_ix) = dock
 3372                    .first_enabled_panel_idx(cx)
 3373                    .log_with_level(log::Level::Info)
 3374                else {
 3375                    return;
 3376                };
 3377                dock.activate_panel(panel_ix, window, cx);
 3378            }
 3379
 3380            if let Some(active_panel) = dock.active_panel() {
 3381                if was_visible {
 3382                    if active_panel
 3383                        .panel_focus_handle(cx)
 3384                        .contains_focused(window, cx)
 3385                    {
 3386                        focus_center = true;
 3387                    }
 3388                } else {
 3389                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3390                    window.focus(focus_handle, cx);
 3391                    reveal_dock = true;
 3392                }
 3393            }
 3394        });
 3395
 3396        if reveal_dock {
 3397            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3398        }
 3399
 3400        if focus_center {
 3401            self.active_pane
 3402                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3403        }
 3404
 3405        cx.notify();
 3406        self.serialize_workspace(window, cx);
 3407    }
 3408
 3409    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3410        self.all_docks().into_iter().find(|&dock| {
 3411            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3412        })
 3413    }
 3414
 3415    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3416        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3417            self.save_open_dock_positions(cx);
 3418            dock.update(cx, |dock, cx| {
 3419                dock.set_open(false, window, cx);
 3420            });
 3421            return true;
 3422        }
 3423        false
 3424    }
 3425
 3426    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3427        self.save_open_dock_positions(cx);
 3428        for dock in self.all_docks() {
 3429            dock.update(cx, |dock, cx| {
 3430                dock.set_open(false, window, cx);
 3431            });
 3432        }
 3433
 3434        cx.focus_self(window);
 3435        cx.notify();
 3436        self.serialize_workspace(window, cx);
 3437    }
 3438
 3439    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3440        self.all_docks()
 3441            .into_iter()
 3442            .filter_map(|dock| {
 3443                let dock_ref = dock.read(cx);
 3444                if dock_ref.is_open() {
 3445                    Some(dock_ref.position())
 3446                } else {
 3447                    None
 3448                }
 3449            })
 3450            .collect()
 3451    }
 3452
 3453    /// Saves the positions of currently open docks.
 3454    ///
 3455    /// Updates `last_open_dock_positions` with positions of all currently open
 3456    /// docks, to later be restored by the 'Toggle All Docks' action.
 3457    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3458        let open_dock_positions = self.get_open_dock_positions(cx);
 3459        if !open_dock_positions.is_empty() {
 3460            self.last_open_dock_positions = open_dock_positions;
 3461        }
 3462    }
 3463
 3464    /// Toggles all docks between open and closed states.
 3465    ///
 3466    /// If any docks are open, closes all and remembers their positions. If all
 3467    /// docks are closed, restores the last remembered dock configuration.
 3468    fn toggle_all_docks(
 3469        &mut self,
 3470        _: &ToggleAllDocks,
 3471        window: &mut Window,
 3472        cx: &mut Context<Self>,
 3473    ) {
 3474        let open_dock_positions = self.get_open_dock_positions(cx);
 3475
 3476        if !open_dock_positions.is_empty() {
 3477            self.close_all_docks(window, cx);
 3478        } else if !self.last_open_dock_positions.is_empty() {
 3479            self.restore_last_open_docks(window, cx);
 3480        }
 3481    }
 3482
 3483    /// Reopens docks from the most recently remembered configuration.
 3484    ///
 3485    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3486    /// and clears the stored positions.
 3487    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3488        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3489
 3490        for position in positions_to_open {
 3491            let dock = self.dock_at_position(position);
 3492            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3493        }
 3494
 3495        cx.focus_self(window);
 3496        cx.notify();
 3497        self.serialize_workspace(window, cx);
 3498    }
 3499
 3500    /// Transfer focus to the panel of the given type.
 3501    pub fn focus_panel<T: Panel>(
 3502        &mut self,
 3503        window: &mut Window,
 3504        cx: &mut Context<Self>,
 3505    ) -> Option<Entity<T>> {
 3506        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3507        panel.to_any().downcast().ok()
 3508    }
 3509
 3510    /// Focus the panel of the given type if it isn't already focused. If it is
 3511    /// already focused, then transfer focus back to the workspace center.
 3512    pub fn toggle_panel_focus<T: Panel>(
 3513        &mut self,
 3514        window: &mut Window,
 3515        cx: &mut Context<Self>,
 3516    ) -> bool {
 3517        let mut did_focus_panel = false;
 3518        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3519            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3520            did_focus_panel
 3521        });
 3522
 3523        telemetry::event!(
 3524            "Panel Button Clicked",
 3525            name = T::persistent_name(),
 3526            toggle_state = did_focus_panel
 3527        );
 3528
 3529        did_focus_panel
 3530    }
 3531
 3532    pub fn activate_panel_for_proto_id(
 3533        &mut self,
 3534        panel_id: PanelId,
 3535        window: &mut Window,
 3536        cx: &mut Context<Self>,
 3537    ) -> Option<Arc<dyn PanelHandle>> {
 3538        let mut panel = None;
 3539        for dock in self.all_docks() {
 3540            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3541                panel = dock.update(cx, |dock, cx| {
 3542                    dock.activate_panel(panel_index, window, cx);
 3543                    dock.set_open(true, window, cx);
 3544                    dock.active_panel().cloned()
 3545                });
 3546                break;
 3547            }
 3548        }
 3549
 3550        if panel.is_some() {
 3551            cx.notify();
 3552            self.serialize_workspace(window, cx);
 3553        }
 3554
 3555        panel
 3556    }
 3557
 3558    /// Focus or unfocus the given panel type, depending on the given callback.
 3559    fn focus_or_unfocus_panel<T: Panel>(
 3560        &mut self,
 3561        window: &mut Window,
 3562        cx: &mut Context<Self>,
 3563        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3564    ) -> Option<Arc<dyn PanelHandle>> {
 3565        let mut result_panel = None;
 3566        let mut serialize = false;
 3567        for dock in self.all_docks() {
 3568            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3569                let mut focus_center = false;
 3570                let panel = dock.update(cx, |dock, cx| {
 3571                    dock.activate_panel(panel_index, window, cx);
 3572
 3573                    let panel = dock.active_panel().cloned();
 3574                    if let Some(panel) = panel.as_ref() {
 3575                        if should_focus(&**panel, window, cx) {
 3576                            dock.set_open(true, window, cx);
 3577                            panel.panel_focus_handle(cx).focus(window, cx);
 3578                        } else {
 3579                            focus_center = true;
 3580                        }
 3581                    }
 3582                    panel
 3583                });
 3584
 3585                if focus_center {
 3586                    self.active_pane
 3587                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3588                }
 3589
 3590                result_panel = panel;
 3591                serialize = true;
 3592                break;
 3593            }
 3594        }
 3595
 3596        if serialize {
 3597            self.serialize_workspace(window, cx);
 3598        }
 3599
 3600        cx.notify();
 3601        result_panel
 3602    }
 3603
 3604    /// Open the panel of the given type
 3605    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3606        for dock in self.all_docks() {
 3607            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3608                dock.update(cx, |dock, cx| {
 3609                    dock.activate_panel(panel_index, window, cx);
 3610                    dock.set_open(true, window, cx);
 3611                });
 3612            }
 3613        }
 3614    }
 3615
 3616    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3617        for dock in self.all_docks().iter() {
 3618            dock.update(cx, |dock, cx| {
 3619                if dock.panel::<T>().is_some() {
 3620                    dock.set_open(false, window, cx)
 3621                }
 3622            })
 3623        }
 3624    }
 3625
 3626    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3627        self.all_docks()
 3628            .iter()
 3629            .find_map(|dock| dock.read(cx).panel::<T>())
 3630    }
 3631
 3632    fn dismiss_zoomed_items_to_reveal(
 3633        &mut self,
 3634        dock_to_reveal: Option<DockPosition>,
 3635        window: &mut Window,
 3636        cx: &mut Context<Self>,
 3637    ) {
 3638        // If a center pane is zoomed, unzoom it.
 3639        for pane in &self.panes {
 3640            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3641                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3642            }
 3643        }
 3644
 3645        // If another dock is zoomed, hide it.
 3646        let mut focus_center = false;
 3647        for dock in self.all_docks() {
 3648            dock.update(cx, |dock, cx| {
 3649                if Some(dock.position()) != dock_to_reveal
 3650                    && let Some(panel) = dock.active_panel()
 3651                    && panel.is_zoomed(window, cx)
 3652                {
 3653                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3654                    dock.set_open(false, window, cx);
 3655                }
 3656            });
 3657        }
 3658
 3659        if focus_center {
 3660            self.active_pane
 3661                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3662        }
 3663
 3664        if self.zoomed_position != dock_to_reveal {
 3665            self.zoomed = None;
 3666            self.zoomed_position = None;
 3667            cx.emit(Event::ZoomChanged);
 3668        }
 3669
 3670        cx.notify();
 3671    }
 3672
 3673    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3674        let pane = cx.new(|cx| {
 3675            let mut pane = Pane::new(
 3676                self.weak_handle(),
 3677                self.project.clone(),
 3678                self.pane_history_timestamp.clone(),
 3679                None,
 3680                NewFile.boxed_clone(),
 3681                true,
 3682                window,
 3683                cx,
 3684            );
 3685            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3686            pane
 3687        });
 3688        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3689            .detach();
 3690        self.panes.push(pane.clone());
 3691
 3692        window.focus(&pane.focus_handle(cx), cx);
 3693
 3694        cx.emit(Event::PaneAdded(pane.clone()));
 3695        pane
 3696    }
 3697
 3698    pub fn add_item_to_center(
 3699        &mut self,
 3700        item: Box<dyn ItemHandle>,
 3701        window: &mut Window,
 3702        cx: &mut Context<Self>,
 3703    ) -> bool {
 3704        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3705            if let Some(center_pane) = center_pane.upgrade() {
 3706                center_pane.update(cx, |pane, cx| {
 3707                    pane.add_item(item, true, true, None, window, cx)
 3708                });
 3709                true
 3710            } else {
 3711                false
 3712            }
 3713        } else {
 3714            false
 3715        }
 3716    }
 3717
 3718    pub fn add_item_to_active_pane(
 3719        &mut self,
 3720        item: Box<dyn ItemHandle>,
 3721        destination_index: Option<usize>,
 3722        focus_item: bool,
 3723        window: &mut Window,
 3724        cx: &mut App,
 3725    ) {
 3726        self.add_item(
 3727            self.active_pane.clone(),
 3728            item,
 3729            destination_index,
 3730            false,
 3731            focus_item,
 3732            window,
 3733            cx,
 3734        )
 3735    }
 3736
 3737    pub fn add_item(
 3738        &mut self,
 3739        pane: Entity<Pane>,
 3740        item: Box<dyn ItemHandle>,
 3741        destination_index: Option<usize>,
 3742        activate_pane: bool,
 3743        focus_item: bool,
 3744        window: &mut Window,
 3745        cx: &mut App,
 3746    ) {
 3747        pane.update(cx, |pane, cx| {
 3748            pane.add_item(
 3749                item,
 3750                activate_pane,
 3751                focus_item,
 3752                destination_index,
 3753                window,
 3754                cx,
 3755            )
 3756        });
 3757    }
 3758
 3759    pub fn split_item(
 3760        &mut self,
 3761        split_direction: SplitDirection,
 3762        item: Box<dyn ItemHandle>,
 3763        window: &mut Window,
 3764        cx: &mut Context<Self>,
 3765    ) {
 3766        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3767        self.add_item(new_pane, item, None, true, true, window, cx);
 3768    }
 3769
 3770    pub fn open_abs_path(
 3771        &mut self,
 3772        abs_path: PathBuf,
 3773        options: OpenOptions,
 3774        window: &mut Window,
 3775        cx: &mut Context<Self>,
 3776    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3777        cx.spawn_in(window, async move |workspace, cx| {
 3778            let open_paths_task_result = workspace
 3779                .update_in(cx, |workspace, window, cx| {
 3780                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3781                })
 3782                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3783                .await;
 3784            anyhow::ensure!(
 3785                open_paths_task_result.len() == 1,
 3786                "open abs path {abs_path:?} task returned incorrect number of results"
 3787            );
 3788            match open_paths_task_result
 3789                .into_iter()
 3790                .next()
 3791                .expect("ensured single task result")
 3792            {
 3793                Some(open_result) => {
 3794                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3795                }
 3796                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3797            }
 3798        })
 3799    }
 3800
 3801    pub fn split_abs_path(
 3802        &mut self,
 3803        abs_path: PathBuf,
 3804        visible: bool,
 3805        window: &mut Window,
 3806        cx: &mut Context<Self>,
 3807    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3808        let project_path_task =
 3809            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3810        cx.spawn_in(window, async move |this, cx| {
 3811            let (_, path) = project_path_task.await?;
 3812            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3813                .await
 3814        })
 3815    }
 3816
 3817    pub fn open_path(
 3818        &mut self,
 3819        path: impl Into<ProjectPath>,
 3820        pane: Option<WeakEntity<Pane>>,
 3821        focus_item: bool,
 3822        window: &mut Window,
 3823        cx: &mut App,
 3824    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3825        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3826    }
 3827
 3828    pub fn open_path_preview(
 3829        &mut self,
 3830        path: impl Into<ProjectPath>,
 3831        pane: Option<WeakEntity<Pane>>,
 3832        focus_item: bool,
 3833        allow_preview: bool,
 3834        activate: bool,
 3835        window: &mut Window,
 3836        cx: &mut App,
 3837    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3838        let pane = pane.unwrap_or_else(|| {
 3839            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3840                self.panes
 3841                    .first()
 3842                    .expect("There must be an active pane")
 3843                    .downgrade()
 3844            })
 3845        });
 3846
 3847        let project_path = path.into();
 3848        let task = self.load_path(project_path.clone(), window, cx);
 3849        window.spawn(cx, async move |cx| {
 3850            let (project_entry_id, build_item) = task.await?;
 3851
 3852            pane.update_in(cx, |pane, window, cx| {
 3853                pane.open_item(
 3854                    project_entry_id,
 3855                    project_path,
 3856                    focus_item,
 3857                    allow_preview,
 3858                    activate,
 3859                    None,
 3860                    window,
 3861                    cx,
 3862                    build_item,
 3863                )
 3864            })
 3865        })
 3866    }
 3867
 3868    pub fn split_path(
 3869        &mut self,
 3870        path: impl Into<ProjectPath>,
 3871        window: &mut Window,
 3872        cx: &mut Context<Self>,
 3873    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3874        self.split_path_preview(path, false, None, window, cx)
 3875    }
 3876
 3877    pub fn split_path_preview(
 3878        &mut self,
 3879        path: impl Into<ProjectPath>,
 3880        allow_preview: bool,
 3881        split_direction: Option<SplitDirection>,
 3882        window: &mut Window,
 3883        cx: &mut Context<Self>,
 3884    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3885        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3886            self.panes
 3887                .first()
 3888                .expect("There must be an active pane")
 3889                .downgrade()
 3890        });
 3891
 3892        if let Member::Pane(center_pane) = &self.center.root
 3893            && center_pane.read(cx).items_len() == 0
 3894        {
 3895            return self.open_path(path, Some(pane), true, window, cx);
 3896        }
 3897
 3898        let project_path = path.into();
 3899        let task = self.load_path(project_path.clone(), window, cx);
 3900        cx.spawn_in(window, async move |this, cx| {
 3901            let (project_entry_id, build_item) = task.await?;
 3902            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3903                let pane = pane.upgrade()?;
 3904                let new_pane = this.split_pane(
 3905                    pane,
 3906                    split_direction.unwrap_or(SplitDirection::Right),
 3907                    window,
 3908                    cx,
 3909                );
 3910                new_pane.update(cx, |new_pane, cx| {
 3911                    Some(new_pane.open_item(
 3912                        project_entry_id,
 3913                        project_path,
 3914                        true,
 3915                        allow_preview,
 3916                        true,
 3917                        None,
 3918                        window,
 3919                        cx,
 3920                        build_item,
 3921                    ))
 3922                })
 3923            })
 3924            .map(|option| option.context("pane was dropped"))?
 3925        })
 3926    }
 3927
 3928    fn load_path(
 3929        &mut self,
 3930        path: ProjectPath,
 3931        window: &mut Window,
 3932        cx: &mut App,
 3933    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3934        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3935        registry.open_path(self.project(), &path, window, cx)
 3936    }
 3937
 3938    pub fn find_project_item<T>(
 3939        &self,
 3940        pane: &Entity<Pane>,
 3941        project_item: &Entity<T::Item>,
 3942        cx: &App,
 3943    ) -> Option<Entity<T>>
 3944    where
 3945        T: ProjectItem,
 3946    {
 3947        use project::ProjectItem as _;
 3948        let project_item = project_item.read(cx);
 3949        let entry_id = project_item.entry_id(cx);
 3950        let project_path = project_item.project_path(cx);
 3951
 3952        let mut item = None;
 3953        if let Some(entry_id) = entry_id {
 3954            item = pane.read(cx).item_for_entry(entry_id, cx);
 3955        }
 3956        if item.is_none()
 3957            && let Some(project_path) = project_path
 3958        {
 3959            item = pane.read(cx).item_for_path(project_path, cx);
 3960        }
 3961
 3962        item.and_then(|item| item.downcast::<T>())
 3963    }
 3964
 3965    pub fn is_project_item_open<T>(
 3966        &self,
 3967        pane: &Entity<Pane>,
 3968        project_item: &Entity<T::Item>,
 3969        cx: &App,
 3970    ) -> bool
 3971    where
 3972        T: ProjectItem,
 3973    {
 3974        self.find_project_item::<T>(pane, project_item, cx)
 3975            .is_some()
 3976    }
 3977
 3978    pub fn open_project_item<T>(
 3979        &mut self,
 3980        pane: Entity<Pane>,
 3981        project_item: Entity<T::Item>,
 3982        activate_pane: bool,
 3983        focus_item: bool,
 3984        keep_old_preview: bool,
 3985        allow_new_preview: bool,
 3986        window: &mut Window,
 3987        cx: &mut Context<Self>,
 3988    ) -> Entity<T>
 3989    where
 3990        T: ProjectItem,
 3991    {
 3992        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3993
 3994        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3995            if !keep_old_preview
 3996                && let Some(old_id) = old_item_id
 3997                && old_id != item.item_id()
 3998            {
 3999                // switching to a different item, so unpreview old active item
 4000                pane.update(cx, |pane, _| {
 4001                    pane.unpreview_item_if_preview(old_id);
 4002                });
 4003            }
 4004
 4005            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4006            if !allow_new_preview {
 4007                pane.update(cx, |pane, _| {
 4008                    pane.unpreview_item_if_preview(item.item_id());
 4009                });
 4010            }
 4011            return item;
 4012        }
 4013
 4014        let item = pane.update(cx, |pane, cx| {
 4015            cx.new(|cx| {
 4016                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4017            })
 4018        });
 4019        let mut destination_index = None;
 4020        pane.update(cx, |pane, cx| {
 4021            if !keep_old_preview && let Some(old_id) = old_item_id {
 4022                pane.unpreview_item_if_preview(old_id);
 4023            }
 4024            if allow_new_preview {
 4025                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4026            }
 4027        });
 4028
 4029        self.add_item(
 4030            pane,
 4031            Box::new(item.clone()),
 4032            destination_index,
 4033            activate_pane,
 4034            focus_item,
 4035            window,
 4036            cx,
 4037        );
 4038        item
 4039    }
 4040
 4041    pub fn open_shared_screen(
 4042        &mut self,
 4043        peer_id: PeerId,
 4044        window: &mut Window,
 4045        cx: &mut Context<Self>,
 4046    ) {
 4047        if let Some(shared_screen) =
 4048            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4049        {
 4050            self.active_pane.update(cx, |pane, cx| {
 4051                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4052            });
 4053        }
 4054    }
 4055
 4056    pub fn activate_item(
 4057        &mut self,
 4058        item: &dyn ItemHandle,
 4059        activate_pane: bool,
 4060        focus_item: bool,
 4061        window: &mut Window,
 4062        cx: &mut App,
 4063    ) -> bool {
 4064        let result = self.panes.iter().find_map(|pane| {
 4065            pane.read(cx)
 4066                .index_for_item(item)
 4067                .map(|ix| (pane.clone(), ix))
 4068        });
 4069        if let Some((pane, ix)) = result {
 4070            pane.update(cx, |pane, cx| {
 4071                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4072            });
 4073            true
 4074        } else {
 4075            false
 4076        }
 4077    }
 4078
 4079    fn activate_pane_at_index(
 4080        &mut self,
 4081        action: &ActivatePane,
 4082        window: &mut Window,
 4083        cx: &mut Context<Self>,
 4084    ) {
 4085        let panes = self.center.panes();
 4086        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4087            window.focus(&pane.focus_handle(cx), cx);
 4088        } else {
 4089            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4090                .detach();
 4091        }
 4092    }
 4093
 4094    fn move_item_to_pane_at_index(
 4095        &mut self,
 4096        action: &MoveItemToPane,
 4097        window: &mut Window,
 4098        cx: &mut Context<Self>,
 4099    ) {
 4100        let panes = self.center.panes();
 4101        let destination = match panes.get(action.destination) {
 4102            Some(&destination) => destination.clone(),
 4103            None => {
 4104                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4105                    return;
 4106                }
 4107                let direction = SplitDirection::Right;
 4108                let split_off_pane = self
 4109                    .find_pane_in_direction(direction, cx)
 4110                    .unwrap_or_else(|| self.active_pane.clone());
 4111                let new_pane = self.add_pane(window, cx);
 4112                if self
 4113                    .center
 4114                    .split(&split_off_pane, &new_pane, direction, cx)
 4115                    .log_err()
 4116                    .is_none()
 4117                {
 4118                    return;
 4119                };
 4120                new_pane
 4121            }
 4122        };
 4123
 4124        if action.clone {
 4125            if self
 4126                .active_pane
 4127                .read(cx)
 4128                .active_item()
 4129                .is_some_and(|item| item.can_split(cx))
 4130            {
 4131                clone_active_item(
 4132                    self.database_id(),
 4133                    &self.active_pane,
 4134                    &destination,
 4135                    action.focus,
 4136                    window,
 4137                    cx,
 4138                );
 4139                return;
 4140            }
 4141        }
 4142        move_active_item(
 4143            &self.active_pane,
 4144            &destination,
 4145            action.focus,
 4146            true,
 4147            window,
 4148            cx,
 4149        )
 4150    }
 4151
 4152    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4153        let panes = self.center.panes();
 4154        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4155            let next_ix = (ix + 1) % panes.len();
 4156            let next_pane = panes[next_ix].clone();
 4157            window.focus(&next_pane.focus_handle(cx), cx);
 4158        }
 4159    }
 4160
 4161    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4162        let panes = self.center.panes();
 4163        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4164            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4165            let prev_pane = panes[prev_ix].clone();
 4166            window.focus(&prev_pane.focus_handle(cx), cx);
 4167        }
 4168    }
 4169
 4170    pub fn activate_pane_in_direction(
 4171        &mut self,
 4172        direction: SplitDirection,
 4173        window: &mut Window,
 4174        cx: &mut App,
 4175    ) {
 4176        use ActivateInDirectionTarget as Target;
 4177        enum Origin {
 4178            LeftDock,
 4179            RightDock,
 4180            BottomDock,
 4181            Center,
 4182        }
 4183
 4184        let origin: Origin = [
 4185            (&self.left_dock, Origin::LeftDock),
 4186            (&self.right_dock, Origin::RightDock),
 4187            (&self.bottom_dock, Origin::BottomDock),
 4188        ]
 4189        .into_iter()
 4190        .find_map(|(dock, origin)| {
 4191            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4192                Some(origin)
 4193            } else {
 4194                None
 4195            }
 4196        })
 4197        .unwrap_or(Origin::Center);
 4198
 4199        let get_last_active_pane = || {
 4200            let pane = self
 4201                .last_active_center_pane
 4202                .clone()
 4203                .unwrap_or_else(|| {
 4204                    self.panes
 4205                        .first()
 4206                        .expect("There must be an active pane")
 4207                        .downgrade()
 4208                })
 4209                .upgrade()?;
 4210            (pane.read(cx).items_len() != 0).then_some(pane)
 4211        };
 4212
 4213        let try_dock =
 4214            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4215
 4216        let target = match (origin, direction) {
 4217            // We're in the center, so we first try to go to a different pane,
 4218            // otherwise try to go to a dock.
 4219            (Origin::Center, direction) => {
 4220                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4221                    Some(Target::Pane(pane))
 4222                } else {
 4223                    match direction {
 4224                        SplitDirection::Up => None,
 4225                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4226                        SplitDirection::Left => try_dock(&self.left_dock),
 4227                        SplitDirection::Right => try_dock(&self.right_dock),
 4228                    }
 4229                }
 4230            }
 4231
 4232            (Origin::LeftDock, SplitDirection::Right) => {
 4233                if let Some(last_active_pane) = get_last_active_pane() {
 4234                    Some(Target::Pane(last_active_pane))
 4235                } else {
 4236                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4237                }
 4238            }
 4239
 4240            (Origin::LeftDock, SplitDirection::Down)
 4241            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4242
 4243            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4244            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4245            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4246
 4247            (Origin::RightDock, SplitDirection::Left) => {
 4248                if let Some(last_active_pane) = get_last_active_pane() {
 4249                    Some(Target::Pane(last_active_pane))
 4250                } else {
 4251                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4252                }
 4253            }
 4254
 4255            _ => None,
 4256        };
 4257
 4258        match target {
 4259            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4260                let pane = pane.read(cx);
 4261                if let Some(item) = pane.active_item() {
 4262                    item.item_focus_handle(cx).focus(window, cx);
 4263                } else {
 4264                    log::error!(
 4265                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4266                    );
 4267                }
 4268            }
 4269            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4270                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4271                window.defer(cx, move |window, cx| {
 4272                    let dock = dock.read(cx);
 4273                    if let Some(panel) = dock.active_panel() {
 4274                        panel.panel_focus_handle(cx).focus(window, cx);
 4275                    } else {
 4276                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4277                    }
 4278                })
 4279            }
 4280            None => {}
 4281        }
 4282    }
 4283
 4284    pub fn move_item_to_pane_in_direction(
 4285        &mut self,
 4286        action: &MoveItemToPaneInDirection,
 4287        window: &mut Window,
 4288        cx: &mut Context<Self>,
 4289    ) {
 4290        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4291            Some(destination) => destination,
 4292            None => {
 4293                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4294                    return;
 4295                }
 4296                let new_pane = self.add_pane(window, cx);
 4297                if self
 4298                    .center
 4299                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4300                    .log_err()
 4301                    .is_none()
 4302                {
 4303                    return;
 4304                };
 4305                new_pane
 4306            }
 4307        };
 4308
 4309        if action.clone {
 4310            if self
 4311                .active_pane
 4312                .read(cx)
 4313                .active_item()
 4314                .is_some_and(|item| item.can_split(cx))
 4315            {
 4316                clone_active_item(
 4317                    self.database_id(),
 4318                    &self.active_pane,
 4319                    &destination,
 4320                    action.focus,
 4321                    window,
 4322                    cx,
 4323                );
 4324                return;
 4325            }
 4326        }
 4327        move_active_item(
 4328            &self.active_pane,
 4329            &destination,
 4330            action.focus,
 4331            true,
 4332            window,
 4333            cx,
 4334        );
 4335    }
 4336
 4337    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4338        self.center.bounding_box_for_pane(pane)
 4339    }
 4340
 4341    pub fn find_pane_in_direction(
 4342        &mut self,
 4343        direction: SplitDirection,
 4344        cx: &App,
 4345    ) -> Option<Entity<Pane>> {
 4346        self.center
 4347            .find_pane_in_direction(&self.active_pane, direction, cx)
 4348            .cloned()
 4349    }
 4350
 4351    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4352        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4353            self.center.swap(&self.active_pane, &to, cx);
 4354            cx.notify();
 4355        }
 4356    }
 4357
 4358    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4359        if self
 4360            .center
 4361            .move_to_border(&self.active_pane, direction, cx)
 4362            .unwrap()
 4363        {
 4364            cx.notify();
 4365        }
 4366    }
 4367
 4368    pub fn resize_pane(
 4369        &mut self,
 4370        axis: gpui::Axis,
 4371        amount: Pixels,
 4372        window: &mut Window,
 4373        cx: &mut Context<Self>,
 4374    ) {
 4375        let docks = self.all_docks();
 4376        let active_dock = docks
 4377            .into_iter()
 4378            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4379
 4380        if let Some(dock) = active_dock {
 4381            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4382                return;
 4383            };
 4384            match dock.read(cx).position() {
 4385                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4386                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4387                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4388            }
 4389        } else {
 4390            self.center
 4391                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4392        }
 4393        cx.notify();
 4394    }
 4395
 4396    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4397        self.center.reset_pane_sizes(cx);
 4398        cx.notify();
 4399    }
 4400
 4401    fn handle_pane_focused(
 4402        &mut self,
 4403        pane: Entity<Pane>,
 4404        window: &mut Window,
 4405        cx: &mut Context<Self>,
 4406    ) {
 4407        // This is explicitly hoisted out of the following check for pane identity as
 4408        // terminal panel panes are not registered as a center panes.
 4409        self.status_bar.update(cx, |status_bar, cx| {
 4410            status_bar.set_active_pane(&pane, window, cx);
 4411        });
 4412        if self.active_pane != pane {
 4413            self.set_active_pane(&pane, window, cx);
 4414        }
 4415
 4416        if self.last_active_center_pane.is_none() {
 4417            self.last_active_center_pane = Some(pane.downgrade());
 4418        }
 4419
 4420        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4421        // This prevents the dock from closing when focus events fire during window activation.
 4422        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4423            let dock_read = dock.read(cx);
 4424            if let Some(panel) = dock_read.active_panel()
 4425                && let Some(dock_pane) = panel.pane(cx)
 4426                && dock_pane == pane
 4427            {
 4428                Some(dock_read.position())
 4429            } else {
 4430                None
 4431            }
 4432        });
 4433
 4434        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4435        if pane.read(cx).is_zoomed() {
 4436            self.zoomed = Some(pane.downgrade().into());
 4437        } else {
 4438            self.zoomed = None;
 4439        }
 4440        self.zoomed_position = None;
 4441        cx.emit(Event::ZoomChanged);
 4442        self.update_active_view_for_followers(window, cx);
 4443        pane.update(cx, |pane, _| {
 4444            pane.track_alternate_file_items();
 4445        });
 4446
 4447        cx.notify();
 4448    }
 4449
 4450    fn set_active_pane(
 4451        &mut self,
 4452        pane: &Entity<Pane>,
 4453        window: &mut Window,
 4454        cx: &mut Context<Self>,
 4455    ) {
 4456        self.active_pane = pane.clone();
 4457        self.active_item_path_changed(true, window, cx);
 4458        self.last_active_center_pane = Some(pane.downgrade());
 4459    }
 4460
 4461    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4462        self.update_active_view_for_followers(window, cx);
 4463    }
 4464
 4465    fn handle_pane_event(
 4466        &mut self,
 4467        pane: &Entity<Pane>,
 4468        event: &pane::Event,
 4469        window: &mut Window,
 4470        cx: &mut Context<Self>,
 4471    ) {
 4472        let mut serialize_workspace = true;
 4473        match event {
 4474            pane::Event::AddItem { item } => {
 4475                item.added_to_pane(self, pane.clone(), window, cx);
 4476                cx.emit(Event::ItemAdded {
 4477                    item: item.boxed_clone(),
 4478                });
 4479            }
 4480            pane::Event::Split { direction, mode } => {
 4481                match mode {
 4482                    SplitMode::ClonePane => {
 4483                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4484                            .detach();
 4485                    }
 4486                    SplitMode::EmptyPane => {
 4487                        self.split_pane(pane.clone(), *direction, window, cx);
 4488                    }
 4489                    SplitMode::MovePane => {
 4490                        self.split_and_move(pane.clone(), *direction, window, cx);
 4491                    }
 4492                };
 4493            }
 4494            pane::Event::JoinIntoNext => {
 4495                self.join_pane_into_next(pane.clone(), window, cx);
 4496            }
 4497            pane::Event::JoinAll => {
 4498                self.join_all_panes(window, cx);
 4499            }
 4500            pane::Event::Remove { focus_on_pane } => {
 4501                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4502            }
 4503            pane::Event::ActivateItem {
 4504                local,
 4505                focus_changed,
 4506            } => {
 4507                window.invalidate_character_coordinates();
 4508
 4509                pane.update(cx, |pane, _| {
 4510                    pane.track_alternate_file_items();
 4511                });
 4512                if *local {
 4513                    self.unfollow_in_pane(pane, window, cx);
 4514                }
 4515                serialize_workspace = *focus_changed || pane != self.active_pane();
 4516                if pane == self.active_pane() {
 4517                    self.active_item_path_changed(*focus_changed, window, cx);
 4518                    self.update_active_view_for_followers(window, cx);
 4519                } else if *local {
 4520                    self.set_active_pane(pane, window, cx);
 4521                }
 4522            }
 4523            pane::Event::UserSavedItem { item, save_intent } => {
 4524                cx.emit(Event::UserSavedItem {
 4525                    pane: pane.downgrade(),
 4526                    item: item.boxed_clone(),
 4527                    save_intent: *save_intent,
 4528                });
 4529                serialize_workspace = false;
 4530            }
 4531            pane::Event::ChangeItemTitle => {
 4532                if *pane == self.active_pane {
 4533                    self.active_item_path_changed(false, window, cx);
 4534                }
 4535                serialize_workspace = false;
 4536            }
 4537            pane::Event::RemovedItem { item } => {
 4538                cx.emit(Event::ActiveItemChanged);
 4539                self.update_window_edited(window, cx);
 4540                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4541                    && entry.get().entity_id() == pane.entity_id()
 4542                {
 4543                    entry.remove();
 4544                }
 4545                cx.emit(Event::ItemRemoved {
 4546                    item_id: item.item_id(),
 4547                });
 4548            }
 4549            pane::Event::Focus => {
 4550                window.invalidate_character_coordinates();
 4551                self.handle_pane_focused(pane.clone(), window, cx);
 4552            }
 4553            pane::Event::ZoomIn => {
 4554                if *pane == self.active_pane {
 4555                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4556                    if pane.read(cx).has_focus(window, cx) {
 4557                        self.zoomed = Some(pane.downgrade().into());
 4558                        self.zoomed_position = None;
 4559                        cx.emit(Event::ZoomChanged);
 4560                    }
 4561                    cx.notify();
 4562                }
 4563            }
 4564            pane::Event::ZoomOut => {
 4565                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4566                if self.zoomed_position.is_none() {
 4567                    self.zoomed = None;
 4568                    cx.emit(Event::ZoomChanged);
 4569                }
 4570                cx.notify();
 4571            }
 4572            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4573        }
 4574
 4575        if serialize_workspace {
 4576            self.serialize_workspace(window, cx);
 4577        }
 4578    }
 4579
 4580    pub fn unfollow_in_pane(
 4581        &mut self,
 4582        pane: &Entity<Pane>,
 4583        window: &mut Window,
 4584        cx: &mut Context<Workspace>,
 4585    ) -> Option<CollaboratorId> {
 4586        let leader_id = self.leader_for_pane(pane)?;
 4587        self.unfollow(leader_id, window, cx);
 4588        Some(leader_id)
 4589    }
 4590
 4591    pub fn split_pane(
 4592        &mut self,
 4593        pane_to_split: Entity<Pane>,
 4594        split_direction: SplitDirection,
 4595        window: &mut Window,
 4596        cx: &mut Context<Self>,
 4597    ) -> Entity<Pane> {
 4598        let new_pane = self.add_pane(window, cx);
 4599        self.center
 4600            .split(&pane_to_split, &new_pane, split_direction, cx)
 4601            .unwrap();
 4602        cx.notify();
 4603        new_pane
 4604    }
 4605
 4606    pub fn split_and_move(
 4607        &mut self,
 4608        pane: Entity<Pane>,
 4609        direction: SplitDirection,
 4610        window: &mut Window,
 4611        cx: &mut Context<Self>,
 4612    ) {
 4613        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4614            return;
 4615        };
 4616        let new_pane = self.add_pane(window, cx);
 4617        new_pane.update(cx, |pane, cx| {
 4618            pane.add_item(item, true, true, None, window, cx)
 4619        });
 4620        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4621        cx.notify();
 4622    }
 4623
 4624    pub fn split_and_clone(
 4625        &mut self,
 4626        pane: Entity<Pane>,
 4627        direction: SplitDirection,
 4628        window: &mut Window,
 4629        cx: &mut Context<Self>,
 4630    ) -> Task<Option<Entity<Pane>>> {
 4631        let Some(item) = pane.read(cx).active_item() else {
 4632            return Task::ready(None);
 4633        };
 4634        if !item.can_split(cx) {
 4635            return Task::ready(None);
 4636        }
 4637        let task = item.clone_on_split(self.database_id(), window, cx);
 4638        cx.spawn_in(window, async move |this, cx| {
 4639            if let Some(clone) = task.await {
 4640                this.update_in(cx, |this, window, cx| {
 4641                    let new_pane = this.add_pane(window, cx);
 4642                    let nav_history = pane.read(cx).fork_nav_history();
 4643                    new_pane.update(cx, |pane, cx| {
 4644                        pane.set_nav_history(nav_history, cx);
 4645                        pane.add_item(clone, true, true, None, window, cx)
 4646                    });
 4647                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4648                    cx.notify();
 4649                    new_pane
 4650                })
 4651                .ok()
 4652            } else {
 4653                None
 4654            }
 4655        })
 4656    }
 4657
 4658    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4659        let active_item = self.active_pane.read(cx).active_item();
 4660        for pane in &self.panes {
 4661            join_pane_into_active(&self.active_pane, pane, window, cx);
 4662        }
 4663        if let Some(active_item) = active_item {
 4664            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4665        }
 4666        cx.notify();
 4667    }
 4668
 4669    pub fn join_pane_into_next(
 4670        &mut self,
 4671        pane: Entity<Pane>,
 4672        window: &mut Window,
 4673        cx: &mut Context<Self>,
 4674    ) {
 4675        let next_pane = self
 4676            .find_pane_in_direction(SplitDirection::Right, cx)
 4677            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4678            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4679            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4680        let Some(next_pane) = next_pane else {
 4681            return;
 4682        };
 4683        move_all_items(&pane, &next_pane, window, cx);
 4684        cx.notify();
 4685    }
 4686
 4687    fn remove_pane(
 4688        &mut self,
 4689        pane: Entity<Pane>,
 4690        focus_on: Option<Entity<Pane>>,
 4691        window: &mut Window,
 4692        cx: &mut Context<Self>,
 4693    ) {
 4694        if self.center.remove(&pane, cx).unwrap() {
 4695            self.force_remove_pane(&pane, &focus_on, window, cx);
 4696            self.unfollow_in_pane(&pane, window, cx);
 4697            self.last_leaders_by_pane.remove(&pane.downgrade());
 4698            for removed_item in pane.read(cx).items() {
 4699                self.panes_by_item.remove(&removed_item.item_id());
 4700            }
 4701
 4702            cx.notify();
 4703        } else {
 4704            self.active_item_path_changed(true, window, cx);
 4705        }
 4706        cx.emit(Event::PaneRemoved);
 4707    }
 4708
 4709    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4710        &mut self.panes
 4711    }
 4712
 4713    pub fn panes(&self) -> &[Entity<Pane>] {
 4714        &self.panes
 4715    }
 4716
 4717    pub fn active_pane(&self) -> &Entity<Pane> {
 4718        &self.active_pane
 4719    }
 4720
 4721    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4722        for dock in self.all_docks() {
 4723            if dock.focus_handle(cx).contains_focused(window, cx)
 4724                && let Some(pane) = dock
 4725                    .read(cx)
 4726                    .active_panel()
 4727                    .and_then(|panel| panel.pane(cx))
 4728            {
 4729                return pane;
 4730            }
 4731        }
 4732        self.active_pane().clone()
 4733    }
 4734
 4735    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4736        self.find_pane_in_direction(SplitDirection::Right, cx)
 4737            .unwrap_or_else(|| {
 4738                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4739            })
 4740    }
 4741
 4742    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4743        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4744        weak_pane.upgrade()
 4745    }
 4746
 4747    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4748        self.follower_states.retain(|leader_id, state| {
 4749            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4750                for item in state.items_by_leader_view_id.values() {
 4751                    item.view.set_leader_id(None, window, cx);
 4752                }
 4753                false
 4754            } else {
 4755                true
 4756            }
 4757        });
 4758        cx.notify();
 4759    }
 4760
 4761    pub fn start_following(
 4762        &mut self,
 4763        leader_id: impl Into<CollaboratorId>,
 4764        window: &mut Window,
 4765        cx: &mut Context<Self>,
 4766    ) -> Option<Task<Result<()>>> {
 4767        let leader_id = leader_id.into();
 4768        let pane = self.active_pane().clone();
 4769
 4770        self.last_leaders_by_pane
 4771            .insert(pane.downgrade(), leader_id);
 4772        self.unfollow(leader_id, window, cx);
 4773        self.unfollow_in_pane(&pane, window, cx);
 4774        self.follower_states.insert(
 4775            leader_id,
 4776            FollowerState {
 4777                center_pane: pane.clone(),
 4778                dock_pane: None,
 4779                active_view_id: None,
 4780                items_by_leader_view_id: Default::default(),
 4781            },
 4782        );
 4783        cx.notify();
 4784
 4785        match leader_id {
 4786            CollaboratorId::PeerId(leader_peer_id) => {
 4787                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4788                let project_id = self.project.read(cx).remote_id();
 4789                let request = self.app_state.client.request(proto::Follow {
 4790                    room_id,
 4791                    project_id,
 4792                    leader_id: Some(leader_peer_id),
 4793                });
 4794
 4795                Some(cx.spawn_in(window, async move |this, cx| {
 4796                    let response = request.await?;
 4797                    this.update(cx, |this, _| {
 4798                        let state = this
 4799                            .follower_states
 4800                            .get_mut(&leader_id)
 4801                            .context("following interrupted")?;
 4802                        state.active_view_id = response
 4803                            .active_view
 4804                            .as_ref()
 4805                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4806                        anyhow::Ok(())
 4807                    })??;
 4808                    if let Some(view) = response.active_view {
 4809                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4810                    }
 4811                    this.update_in(cx, |this, window, cx| {
 4812                        this.leader_updated(leader_id, window, cx)
 4813                    })?;
 4814                    Ok(())
 4815                }))
 4816            }
 4817            CollaboratorId::Agent => {
 4818                self.leader_updated(leader_id, window, cx)?;
 4819                Some(Task::ready(Ok(())))
 4820            }
 4821        }
 4822    }
 4823
 4824    pub fn follow_next_collaborator(
 4825        &mut self,
 4826        _: &FollowNextCollaborator,
 4827        window: &mut Window,
 4828        cx: &mut Context<Self>,
 4829    ) {
 4830        let collaborators = self.project.read(cx).collaborators();
 4831        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4832            let mut collaborators = collaborators.keys().copied();
 4833            for peer_id in collaborators.by_ref() {
 4834                if CollaboratorId::PeerId(peer_id) == leader_id {
 4835                    break;
 4836                }
 4837            }
 4838            collaborators.next().map(CollaboratorId::PeerId)
 4839        } else if let Some(last_leader_id) =
 4840            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4841        {
 4842            match last_leader_id {
 4843                CollaboratorId::PeerId(peer_id) => {
 4844                    if collaborators.contains_key(peer_id) {
 4845                        Some(*last_leader_id)
 4846                    } else {
 4847                        None
 4848                    }
 4849                }
 4850                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4851            }
 4852        } else {
 4853            None
 4854        };
 4855
 4856        let pane = self.active_pane.clone();
 4857        let Some(leader_id) = next_leader_id.or_else(|| {
 4858            Some(CollaboratorId::PeerId(
 4859                collaborators.keys().copied().next()?,
 4860            ))
 4861        }) else {
 4862            return;
 4863        };
 4864        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4865            return;
 4866        }
 4867        if let Some(task) = self.start_following(leader_id, window, cx) {
 4868            task.detach_and_log_err(cx)
 4869        }
 4870    }
 4871
 4872    pub fn follow(
 4873        &mut self,
 4874        leader_id: impl Into<CollaboratorId>,
 4875        window: &mut Window,
 4876        cx: &mut Context<Self>,
 4877    ) {
 4878        let leader_id = leader_id.into();
 4879
 4880        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4881            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4882                return;
 4883            };
 4884            let room = room.read(cx);
 4885            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4886                return;
 4887            };
 4888
 4889            let project = self.project.read(cx);
 4890
 4891            let other_project_id = match remote_participant.location {
 4892                call::ParticipantLocation::External => None,
 4893                call::ParticipantLocation::UnsharedProject => None,
 4894                call::ParticipantLocation::SharedProject { project_id } => {
 4895                    if Some(project_id) == project.remote_id() {
 4896                        None
 4897                    } else {
 4898                        Some(project_id)
 4899                    }
 4900                }
 4901            };
 4902
 4903            // if they are active in another project, follow there.
 4904            if let Some(project_id) = other_project_id {
 4905                let app_state = self.app_state.clone();
 4906                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4907                    .detach_and_log_err(cx);
 4908            }
 4909        }
 4910
 4911        // if you're already following, find the right pane and focus it.
 4912        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4913            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4914
 4915            return;
 4916        }
 4917
 4918        // Otherwise, follow.
 4919        if let Some(task) = self.start_following(leader_id, window, cx) {
 4920            task.detach_and_log_err(cx)
 4921        }
 4922    }
 4923
 4924    pub fn unfollow(
 4925        &mut self,
 4926        leader_id: impl Into<CollaboratorId>,
 4927        window: &mut Window,
 4928        cx: &mut Context<Self>,
 4929    ) -> Option<()> {
 4930        cx.notify();
 4931
 4932        let leader_id = leader_id.into();
 4933        let state = self.follower_states.remove(&leader_id)?;
 4934        for (_, item) in state.items_by_leader_view_id {
 4935            item.view.set_leader_id(None, window, cx);
 4936        }
 4937
 4938        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4939            let project_id = self.project.read(cx).remote_id();
 4940            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4941            self.app_state
 4942                .client
 4943                .send(proto::Unfollow {
 4944                    room_id,
 4945                    project_id,
 4946                    leader_id: Some(leader_peer_id),
 4947                })
 4948                .log_err();
 4949        }
 4950
 4951        Some(())
 4952    }
 4953
 4954    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4955        self.follower_states.contains_key(&id.into())
 4956    }
 4957
 4958    fn active_item_path_changed(
 4959        &mut self,
 4960        focus_changed: bool,
 4961        window: &mut Window,
 4962        cx: &mut Context<Self>,
 4963    ) {
 4964        cx.emit(Event::ActiveItemChanged);
 4965        let active_entry = self.active_project_path(cx);
 4966        self.project.update(cx, |project, cx| {
 4967            project.set_active_path(active_entry.clone(), cx)
 4968        });
 4969
 4970        if focus_changed && let Some(project_path) = &active_entry {
 4971            let git_store_entity = self.project.read(cx).git_store().clone();
 4972            git_store_entity.update(cx, |git_store, cx| {
 4973                git_store.set_active_repo_for_path(project_path, cx);
 4974            });
 4975        }
 4976
 4977        self.update_window_title(window, cx);
 4978    }
 4979
 4980    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4981        let project = self.project().read(cx);
 4982        let mut title = String::new();
 4983
 4984        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4985            let name = {
 4986                let settings_location = SettingsLocation {
 4987                    worktree_id: worktree.read(cx).id(),
 4988                    path: RelPath::empty(),
 4989                };
 4990
 4991                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4992                match &settings.project_name {
 4993                    Some(name) => name.as_str(),
 4994                    None => worktree.read(cx).root_name_str(),
 4995                }
 4996            };
 4997            if i > 0 {
 4998                title.push_str(", ");
 4999            }
 5000            title.push_str(name);
 5001        }
 5002
 5003        if title.is_empty() {
 5004            title = "empty project".to_string();
 5005        }
 5006
 5007        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5008            let filename = path.path.file_name().or_else(|| {
 5009                Some(
 5010                    project
 5011                        .worktree_for_id(path.worktree_id, cx)?
 5012                        .read(cx)
 5013                        .root_name_str(),
 5014                )
 5015            });
 5016
 5017            if let Some(filename) = filename {
 5018                title.push_str("");
 5019                title.push_str(filename.as_ref());
 5020            }
 5021        }
 5022
 5023        if project.is_via_collab() {
 5024            title.push_str("");
 5025        } else if project.is_shared() {
 5026            title.push_str("");
 5027        }
 5028
 5029        if let Some(last_title) = self.last_window_title.as_ref()
 5030            && &title == last_title
 5031        {
 5032            return;
 5033        }
 5034        window.set_window_title(&title);
 5035        SystemWindowTabController::update_tab_title(
 5036            cx,
 5037            window.window_handle().window_id(),
 5038            SharedString::from(&title),
 5039        );
 5040        self.last_window_title = Some(title);
 5041    }
 5042
 5043    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5044        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5045        if is_edited != self.window_edited {
 5046            self.window_edited = is_edited;
 5047            window.set_window_edited(self.window_edited)
 5048        }
 5049    }
 5050
 5051    fn update_item_dirty_state(
 5052        &mut self,
 5053        item: &dyn ItemHandle,
 5054        window: &mut Window,
 5055        cx: &mut App,
 5056    ) {
 5057        let is_dirty = item.is_dirty(cx);
 5058        let item_id = item.item_id();
 5059        let was_dirty = self.dirty_items.contains_key(&item_id);
 5060        if is_dirty == was_dirty {
 5061            return;
 5062        }
 5063        if was_dirty {
 5064            self.dirty_items.remove(&item_id);
 5065            self.update_window_edited(window, cx);
 5066            return;
 5067        }
 5068        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 5069            let s = item.on_release(
 5070                cx,
 5071                Box::new(move |cx| {
 5072                    window_handle
 5073                        .update(cx, |this, window, cx| {
 5074                            this.dirty_items.remove(&item_id);
 5075                            this.update_window_edited(window, cx)
 5076                        })
 5077                        .ok();
 5078                }),
 5079            );
 5080            self.dirty_items.insert(item_id, s);
 5081            self.update_window_edited(window, cx);
 5082        }
 5083    }
 5084
 5085    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5086        if self.notifications.is_empty() {
 5087            None
 5088        } else {
 5089            Some(
 5090                div()
 5091                    .absolute()
 5092                    .right_3()
 5093                    .bottom_3()
 5094                    .w_112()
 5095                    .h_full()
 5096                    .flex()
 5097                    .flex_col()
 5098                    .justify_end()
 5099                    .gap_2()
 5100                    .children(
 5101                        self.notifications
 5102                            .iter()
 5103                            .map(|(_, notification)| notification.clone().into_any()),
 5104                    ),
 5105            )
 5106        }
 5107    }
 5108
 5109    // RPC handlers
 5110
 5111    fn active_view_for_follower(
 5112        &self,
 5113        follower_project_id: Option<u64>,
 5114        window: &mut Window,
 5115        cx: &mut Context<Self>,
 5116    ) -> Option<proto::View> {
 5117        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5118        let item = item?;
 5119        let leader_id = self
 5120            .pane_for(&*item)
 5121            .and_then(|pane| self.leader_for_pane(&pane));
 5122        let leader_peer_id = match leader_id {
 5123            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5124            Some(CollaboratorId::Agent) | None => None,
 5125        };
 5126
 5127        let item_handle = item.to_followable_item_handle(cx)?;
 5128        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5129        let variant = item_handle.to_state_proto(window, cx)?;
 5130
 5131        if item_handle.is_project_item(window, cx)
 5132            && (follower_project_id.is_none()
 5133                || follower_project_id != self.project.read(cx).remote_id())
 5134        {
 5135            return None;
 5136        }
 5137
 5138        Some(proto::View {
 5139            id: id.to_proto(),
 5140            leader_id: leader_peer_id,
 5141            variant: Some(variant),
 5142            panel_id: panel_id.map(|id| id as i32),
 5143        })
 5144    }
 5145
 5146    fn handle_follow(
 5147        &mut self,
 5148        follower_project_id: Option<u64>,
 5149        window: &mut Window,
 5150        cx: &mut Context<Self>,
 5151    ) -> proto::FollowResponse {
 5152        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5153
 5154        cx.notify();
 5155        proto::FollowResponse {
 5156            views: active_view.iter().cloned().collect(),
 5157            active_view,
 5158        }
 5159    }
 5160
 5161    fn handle_update_followers(
 5162        &mut self,
 5163        leader_id: PeerId,
 5164        message: proto::UpdateFollowers,
 5165        _window: &mut Window,
 5166        _cx: &mut Context<Self>,
 5167    ) {
 5168        self.leader_updates_tx
 5169            .unbounded_send((leader_id, message))
 5170            .ok();
 5171    }
 5172
 5173    async fn process_leader_update(
 5174        this: &WeakEntity<Self>,
 5175        leader_id: PeerId,
 5176        update: proto::UpdateFollowers,
 5177        cx: &mut AsyncWindowContext,
 5178    ) -> Result<()> {
 5179        match update.variant.context("invalid update")? {
 5180            proto::update_followers::Variant::CreateView(view) => {
 5181                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5182                let should_add_view = this.update(cx, |this, _| {
 5183                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5184                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5185                    } else {
 5186                        anyhow::Ok(false)
 5187                    }
 5188                })??;
 5189
 5190                if should_add_view {
 5191                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5192                }
 5193            }
 5194            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5195                let should_add_view = this.update(cx, |this, _| {
 5196                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5197                        state.active_view_id = update_active_view
 5198                            .view
 5199                            .as_ref()
 5200                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5201
 5202                        if state.active_view_id.is_some_and(|view_id| {
 5203                            !state.items_by_leader_view_id.contains_key(&view_id)
 5204                        }) {
 5205                            anyhow::Ok(true)
 5206                        } else {
 5207                            anyhow::Ok(false)
 5208                        }
 5209                    } else {
 5210                        anyhow::Ok(false)
 5211                    }
 5212                })??;
 5213
 5214                if should_add_view && let Some(view) = update_active_view.view {
 5215                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5216                }
 5217            }
 5218            proto::update_followers::Variant::UpdateView(update_view) => {
 5219                let variant = update_view.variant.context("missing update view variant")?;
 5220                let id = update_view.id.context("missing update view id")?;
 5221                let mut tasks = Vec::new();
 5222                this.update_in(cx, |this, window, cx| {
 5223                    let project = this.project.clone();
 5224                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5225                        let view_id = ViewId::from_proto(id.clone())?;
 5226                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5227                            tasks.push(item.view.apply_update_proto(
 5228                                &project,
 5229                                variant.clone(),
 5230                                window,
 5231                                cx,
 5232                            ));
 5233                        }
 5234                    }
 5235                    anyhow::Ok(())
 5236                })??;
 5237                try_join_all(tasks).await.log_err();
 5238            }
 5239        }
 5240        this.update_in(cx, |this, window, cx| {
 5241            this.leader_updated(leader_id, window, cx)
 5242        })?;
 5243        Ok(())
 5244    }
 5245
 5246    async fn add_view_from_leader(
 5247        this: WeakEntity<Self>,
 5248        leader_id: PeerId,
 5249        view: &proto::View,
 5250        cx: &mut AsyncWindowContext,
 5251    ) -> Result<()> {
 5252        let this = this.upgrade().context("workspace dropped")?;
 5253
 5254        let Some(id) = view.id.clone() else {
 5255            anyhow::bail!("no id for view");
 5256        };
 5257        let id = ViewId::from_proto(id)?;
 5258        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5259
 5260        let pane = this.update(cx, |this, _cx| {
 5261            let state = this
 5262                .follower_states
 5263                .get(&leader_id.into())
 5264                .context("stopped following")?;
 5265            anyhow::Ok(state.pane().clone())
 5266        })?;
 5267        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5268            let client = this.read(cx).client().clone();
 5269            pane.items().find_map(|item| {
 5270                let item = item.to_followable_item_handle(cx)?;
 5271                if item.remote_id(&client, window, cx) == Some(id) {
 5272                    Some(item)
 5273                } else {
 5274                    None
 5275                }
 5276            })
 5277        })?;
 5278        let item = if let Some(existing_item) = existing_item {
 5279            existing_item
 5280        } else {
 5281            let variant = view.variant.clone();
 5282            anyhow::ensure!(variant.is_some(), "missing view variant");
 5283
 5284            let task = cx.update(|window, cx| {
 5285                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5286            })?;
 5287
 5288            let Some(task) = task else {
 5289                anyhow::bail!(
 5290                    "failed to construct view from leader (maybe from a different version of zed?)"
 5291                );
 5292            };
 5293
 5294            let mut new_item = task.await?;
 5295            pane.update_in(cx, |pane, window, cx| {
 5296                let mut item_to_remove = None;
 5297                for (ix, item) in pane.items().enumerate() {
 5298                    if let Some(item) = item.to_followable_item_handle(cx) {
 5299                        match new_item.dedup(item.as_ref(), window, cx) {
 5300                            Some(item::Dedup::KeepExisting) => {
 5301                                new_item =
 5302                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5303                                break;
 5304                            }
 5305                            Some(item::Dedup::ReplaceExisting) => {
 5306                                item_to_remove = Some((ix, item.item_id()));
 5307                                break;
 5308                            }
 5309                            None => {}
 5310                        }
 5311                    }
 5312                }
 5313
 5314                if let Some((ix, id)) = item_to_remove {
 5315                    pane.remove_item(id, false, false, window, cx);
 5316                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5317                }
 5318            })?;
 5319
 5320            new_item
 5321        };
 5322
 5323        this.update_in(cx, |this, window, cx| {
 5324            let state = this.follower_states.get_mut(&leader_id.into())?;
 5325            item.set_leader_id(Some(leader_id.into()), window, cx);
 5326            state.items_by_leader_view_id.insert(
 5327                id,
 5328                FollowerView {
 5329                    view: item,
 5330                    location: panel_id,
 5331                },
 5332            );
 5333
 5334            Some(())
 5335        })
 5336        .context("no follower state")?;
 5337
 5338        Ok(())
 5339    }
 5340
 5341    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5342        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5343            return;
 5344        };
 5345
 5346        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5347            let buffer_entity_id = agent_location.buffer.entity_id();
 5348            let view_id = ViewId {
 5349                creator: CollaboratorId::Agent,
 5350                id: buffer_entity_id.as_u64(),
 5351            };
 5352            follower_state.active_view_id = Some(view_id);
 5353
 5354            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5355                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5356                hash_map::Entry::Vacant(entry) => {
 5357                    let existing_view =
 5358                        follower_state
 5359                            .center_pane
 5360                            .read(cx)
 5361                            .items()
 5362                            .find_map(|item| {
 5363                                let item = item.to_followable_item_handle(cx)?;
 5364                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5365                                    && item.project_item_model_ids(cx).as_slice()
 5366                                        == [buffer_entity_id]
 5367                                {
 5368                                    Some(item)
 5369                                } else {
 5370                                    None
 5371                                }
 5372                            });
 5373                    let view = existing_view.or_else(|| {
 5374                        agent_location.buffer.upgrade().and_then(|buffer| {
 5375                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5376                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5377                            })?
 5378                            .to_followable_item_handle(cx)
 5379                        })
 5380                    });
 5381
 5382                    view.map(|view| {
 5383                        entry.insert(FollowerView {
 5384                            view,
 5385                            location: None,
 5386                        })
 5387                    })
 5388                }
 5389            };
 5390
 5391            if let Some(item) = item {
 5392                item.view
 5393                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5394                item.view
 5395                    .update_agent_location(agent_location.position, window, cx);
 5396            }
 5397        } else {
 5398            follower_state.active_view_id = None;
 5399        }
 5400
 5401        self.leader_updated(CollaboratorId::Agent, window, cx);
 5402    }
 5403
 5404    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5405        let mut is_project_item = true;
 5406        let mut update = proto::UpdateActiveView::default();
 5407        if window.is_window_active() {
 5408            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5409
 5410            if let Some(item) = active_item
 5411                && item.item_focus_handle(cx).contains_focused(window, cx)
 5412            {
 5413                let leader_id = self
 5414                    .pane_for(&*item)
 5415                    .and_then(|pane| self.leader_for_pane(&pane));
 5416                let leader_peer_id = match leader_id {
 5417                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5418                    Some(CollaboratorId::Agent) | None => None,
 5419                };
 5420
 5421                if let Some(item) = item.to_followable_item_handle(cx) {
 5422                    let id = item
 5423                        .remote_id(&self.app_state.client, window, cx)
 5424                        .map(|id| id.to_proto());
 5425
 5426                    if let Some(id) = id
 5427                        && let Some(variant) = item.to_state_proto(window, cx)
 5428                    {
 5429                        let view = Some(proto::View {
 5430                            id,
 5431                            leader_id: leader_peer_id,
 5432                            variant: Some(variant),
 5433                            panel_id: panel_id.map(|id| id as i32),
 5434                        });
 5435
 5436                        is_project_item = item.is_project_item(window, cx);
 5437                        update = proto::UpdateActiveView { view };
 5438                    };
 5439                }
 5440            }
 5441        }
 5442
 5443        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5444        if active_view_id != self.last_active_view_id.as_ref() {
 5445            self.last_active_view_id = active_view_id.cloned();
 5446            self.update_followers(
 5447                is_project_item,
 5448                proto::update_followers::Variant::UpdateActiveView(update),
 5449                window,
 5450                cx,
 5451            );
 5452        }
 5453    }
 5454
 5455    fn active_item_for_followers(
 5456        &self,
 5457        window: &mut Window,
 5458        cx: &mut App,
 5459    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5460        let mut active_item = None;
 5461        let mut panel_id = None;
 5462        for dock in self.all_docks() {
 5463            if dock.focus_handle(cx).contains_focused(window, cx)
 5464                && let Some(panel) = dock.read(cx).active_panel()
 5465                && let Some(pane) = panel.pane(cx)
 5466                && let Some(item) = pane.read(cx).active_item()
 5467            {
 5468                active_item = Some(item);
 5469                panel_id = panel.remote_id();
 5470                break;
 5471            }
 5472        }
 5473
 5474        if active_item.is_none() {
 5475            active_item = self.active_pane().read(cx).active_item();
 5476        }
 5477        (active_item, panel_id)
 5478    }
 5479
 5480    fn update_followers(
 5481        &self,
 5482        project_only: bool,
 5483        update: proto::update_followers::Variant,
 5484        _: &mut Window,
 5485        cx: &mut App,
 5486    ) -> Option<()> {
 5487        // If this update only applies to for followers in the current project,
 5488        // then skip it unless this project is shared. If it applies to all
 5489        // followers, regardless of project, then set `project_id` to none,
 5490        // indicating that it goes to all followers.
 5491        let project_id = if project_only {
 5492            Some(self.project.read(cx).remote_id()?)
 5493        } else {
 5494            None
 5495        };
 5496        self.app_state().workspace_store.update(cx, |store, cx| {
 5497            store.update_followers(project_id, update, cx)
 5498        })
 5499    }
 5500
 5501    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5502        self.follower_states.iter().find_map(|(leader_id, state)| {
 5503            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5504                Some(*leader_id)
 5505            } else {
 5506                None
 5507            }
 5508        })
 5509    }
 5510
 5511    fn leader_updated(
 5512        &mut self,
 5513        leader_id: impl Into<CollaboratorId>,
 5514        window: &mut Window,
 5515        cx: &mut Context<Self>,
 5516    ) -> Option<Box<dyn ItemHandle>> {
 5517        cx.notify();
 5518
 5519        let leader_id = leader_id.into();
 5520        let (panel_id, item) = match leader_id {
 5521            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5522            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5523        };
 5524
 5525        let state = self.follower_states.get(&leader_id)?;
 5526        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5527        let pane;
 5528        if let Some(panel_id) = panel_id {
 5529            pane = self
 5530                .activate_panel_for_proto_id(panel_id, window, cx)?
 5531                .pane(cx)?;
 5532            let state = self.follower_states.get_mut(&leader_id)?;
 5533            state.dock_pane = Some(pane.clone());
 5534        } else {
 5535            pane = state.center_pane.clone();
 5536            let state = self.follower_states.get_mut(&leader_id)?;
 5537            if let Some(dock_pane) = state.dock_pane.take() {
 5538                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5539            }
 5540        }
 5541
 5542        pane.update(cx, |pane, cx| {
 5543            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5544            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5545                pane.activate_item(index, false, false, window, cx);
 5546            } else {
 5547                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5548            }
 5549
 5550            if focus_active_item {
 5551                pane.focus_active_item(window, cx)
 5552            }
 5553        });
 5554
 5555        Some(item)
 5556    }
 5557
 5558    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5559        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5560        let active_view_id = state.active_view_id?;
 5561        Some(
 5562            state
 5563                .items_by_leader_view_id
 5564                .get(&active_view_id)?
 5565                .view
 5566                .boxed_clone(),
 5567        )
 5568    }
 5569
 5570    fn active_item_for_peer(
 5571        &self,
 5572        peer_id: PeerId,
 5573        window: &mut Window,
 5574        cx: &mut Context<Self>,
 5575    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5576        let call = self.active_call()?;
 5577        let room = call.read(cx).room()?.read(cx);
 5578        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5579        let leader_in_this_app;
 5580        let leader_in_this_project;
 5581        match participant.location {
 5582            call::ParticipantLocation::SharedProject { project_id } => {
 5583                leader_in_this_app = true;
 5584                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5585            }
 5586            call::ParticipantLocation::UnsharedProject => {
 5587                leader_in_this_app = true;
 5588                leader_in_this_project = false;
 5589            }
 5590            call::ParticipantLocation::External => {
 5591                leader_in_this_app = false;
 5592                leader_in_this_project = false;
 5593            }
 5594        };
 5595        let state = self.follower_states.get(&peer_id.into())?;
 5596        let mut item_to_activate = None;
 5597        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5598            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5599                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5600            {
 5601                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5602            }
 5603        } else if let Some(shared_screen) =
 5604            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5605        {
 5606            item_to_activate = Some((None, Box::new(shared_screen)));
 5607        }
 5608        item_to_activate
 5609    }
 5610
 5611    fn shared_screen_for_peer(
 5612        &self,
 5613        peer_id: PeerId,
 5614        pane: &Entity<Pane>,
 5615        window: &mut Window,
 5616        cx: &mut App,
 5617    ) -> Option<Entity<SharedScreen>> {
 5618        let call = self.active_call()?;
 5619        let room = call.read(cx).room()?.clone();
 5620        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5621        let track = participant.video_tracks.values().next()?.clone();
 5622        let user = participant.user.clone();
 5623
 5624        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5625            if item.read(cx).peer_id == peer_id {
 5626                return Some(item);
 5627            }
 5628        }
 5629
 5630        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5631    }
 5632
 5633    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5634        if window.is_window_active() {
 5635            self.update_active_view_for_followers(window, cx);
 5636
 5637            if let Some(database_id) = self.database_id {
 5638                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5639                    .detach();
 5640            }
 5641        } else {
 5642            for pane in &self.panes {
 5643                pane.update(cx, |pane, cx| {
 5644                    if let Some(item) = pane.active_item() {
 5645                        item.workspace_deactivated(window, cx);
 5646                    }
 5647                    for item in pane.items() {
 5648                        if matches!(
 5649                            item.workspace_settings(cx).autosave,
 5650                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5651                        ) {
 5652                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5653                                .detach_and_log_err(cx);
 5654                        }
 5655                    }
 5656                });
 5657            }
 5658        }
 5659    }
 5660
 5661    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5662        self.active_call.as_ref().map(|(call, _)| call)
 5663    }
 5664
 5665    fn on_active_call_event(
 5666        &mut self,
 5667        _: &Entity<ActiveCall>,
 5668        event: &call::room::Event,
 5669        window: &mut Window,
 5670        cx: &mut Context<Self>,
 5671    ) {
 5672        match event {
 5673            call::room::Event::ParticipantLocationChanged { participant_id }
 5674            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5675                self.leader_updated(participant_id, window, cx);
 5676            }
 5677            _ => {}
 5678        }
 5679    }
 5680
 5681    pub fn database_id(&self) -> Option<WorkspaceId> {
 5682        self.database_id
 5683    }
 5684
 5685    pub fn session_id(&self) -> Option<String> {
 5686        self.session_id.clone()
 5687    }
 5688
 5689    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5690        let project = self.project().read(cx);
 5691        project
 5692            .visible_worktrees(cx)
 5693            .map(|worktree| worktree.read(cx).abs_path())
 5694            .collect::<Vec<_>>()
 5695    }
 5696
 5697    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5698        match member {
 5699            Member::Axis(PaneAxis { members, .. }) => {
 5700                for child in members.iter() {
 5701                    self.remove_panes(child.clone(), window, cx)
 5702                }
 5703            }
 5704            Member::Pane(pane) => {
 5705                self.force_remove_pane(&pane, &None, window, cx);
 5706            }
 5707        }
 5708    }
 5709
 5710    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5711        self.session_id.take();
 5712        self.serialize_workspace_internal(window, cx)
 5713    }
 5714
 5715    fn force_remove_pane(
 5716        &mut self,
 5717        pane: &Entity<Pane>,
 5718        focus_on: &Option<Entity<Pane>>,
 5719        window: &mut Window,
 5720        cx: &mut Context<Workspace>,
 5721    ) {
 5722        self.panes.retain(|p| p != pane);
 5723        if let Some(focus_on) = focus_on {
 5724            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5725        } else if self.active_pane() == pane {
 5726            self.panes
 5727                .last()
 5728                .unwrap()
 5729                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5730        }
 5731        if self.last_active_center_pane == Some(pane.downgrade()) {
 5732            self.last_active_center_pane = None;
 5733        }
 5734        cx.notify();
 5735    }
 5736
 5737    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5738        if self._schedule_serialize_workspace.is_none() {
 5739            self._schedule_serialize_workspace =
 5740                Some(cx.spawn_in(window, async move |this, cx| {
 5741                    cx.background_executor()
 5742                        .timer(SERIALIZATION_THROTTLE_TIME)
 5743                        .await;
 5744                    this.update_in(cx, |this, window, cx| {
 5745                        this.serialize_workspace_internal(window, cx).detach();
 5746                        this._schedule_serialize_workspace.take();
 5747                    })
 5748                    .log_err();
 5749                }));
 5750        }
 5751    }
 5752
 5753    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5754        let Some(database_id) = self.database_id() else {
 5755            return Task::ready(());
 5756        };
 5757
 5758        fn serialize_pane_handle(
 5759            pane_handle: &Entity<Pane>,
 5760            window: &mut Window,
 5761            cx: &mut App,
 5762        ) -> SerializedPane {
 5763            let (items, active, pinned_count) = {
 5764                let pane = pane_handle.read(cx);
 5765                let active_item_id = pane.active_item().map(|item| item.item_id());
 5766                (
 5767                    pane.items()
 5768                        .filter_map(|handle| {
 5769                            let handle = handle.to_serializable_item_handle(cx)?;
 5770
 5771                            Some(SerializedItem {
 5772                                kind: Arc::from(handle.serialized_item_kind()),
 5773                                item_id: handle.item_id().as_u64(),
 5774                                active: Some(handle.item_id()) == active_item_id,
 5775                                preview: pane.is_active_preview_item(handle.item_id()),
 5776                            })
 5777                        })
 5778                        .collect::<Vec<_>>(),
 5779                    pane.has_focus(window, cx),
 5780                    pane.pinned_count(),
 5781                )
 5782            };
 5783
 5784            SerializedPane::new(items, active, pinned_count)
 5785        }
 5786
 5787        fn build_serialized_pane_group(
 5788            pane_group: &Member,
 5789            window: &mut Window,
 5790            cx: &mut App,
 5791        ) -> SerializedPaneGroup {
 5792            match pane_group {
 5793                Member::Axis(PaneAxis {
 5794                    axis,
 5795                    members,
 5796                    flexes,
 5797                    bounding_boxes: _,
 5798                }) => SerializedPaneGroup::Group {
 5799                    axis: SerializedAxis(*axis),
 5800                    children: members
 5801                        .iter()
 5802                        .map(|member| build_serialized_pane_group(member, window, cx))
 5803                        .collect::<Vec<_>>(),
 5804                    flexes: Some(flexes.lock().clone()),
 5805                },
 5806                Member::Pane(pane_handle) => {
 5807                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5808                }
 5809            }
 5810        }
 5811
 5812        fn build_serialized_docks(
 5813            this: &Workspace,
 5814            window: &mut Window,
 5815            cx: &mut App,
 5816        ) -> DockStructure {
 5817            let left_dock = this.left_dock.read(cx);
 5818            let left_visible = left_dock.is_open();
 5819            let left_active_panel = left_dock
 5820                .active_panel()
 5821                .map(|panel| panel.persistent_name().to_string());
 5822            let left_dock_zoom = left_dock
 5823                .active_panel()
 5824                .map(|panel| panel.is_zoomed(window, cx))
 5825                .unwrap_or(false);
 5826
 5827            let right_dock = this.right_dock.read(cx);
 5828            let right_visible = right_dock.is_open();
 5829            let right_active_panel = right_dock
 5830                .active_panel()
 5831                .map(|panel| panel.persistent_name().to_string());
 5832            let right_dock_zoom = right_dock
 5833                .active_panel()
 5834                .map(|panel| panel.is_zoomed(window, cx))
 5835                .unwrap_or(false);
 5836
 5837            let bottom_dock = this.bottom_dock.read(cx);
 5838            let bottom_visible = bottom_dock.is_open();
 5839            let bottom_active_panel = bottom_dock
 5840                .active_panel()
 5841                .map(|panel| panel.persistent_name().to_string());
 5842            let bottom_dock_zoom = bottom_dock
 5843                .active_panel()
 5844                .map(|panel| panel.is_zoomed(window, cx))
 5845                .unwrap_or(false);
 5846
 5847            DockStructure {
 5848                left: DockData {
 5849                    visible: left_visible,
 5850                    active_panel: left_active_panel,
 5851                    zoom: left_dock_zoom,
 5852                },
 5853                right: DockData {
 5854                    visible: right_visible,
 5855                    active_panel: right_active_panel,
 5856                    zoom: right_dock_zoom,
 5857                },
 5858                bottom: DockData {
 5859                    visible: bottom_visible,
 5860                    active_panel: bottom_active_panel,
 5861                    zoom: bottom_dock_zoom,
 5862                },
 5863            }
 5864        }
 5865
 5866        match self.serialize_workspace_location(cx) {
 5867            WorkspaceLocation::Location(location, paths) => {
 5868                let breakpoints = self.project.update(cx, |project, cx| {
 5869                    project
 5870                        .breakpoint_store()
 5871                        .read(cx)
 5872                        .all_source_breakpoints(cx)
 5873                });
 5874                let user_toolchains = self
 5875                    .project
 5876                    .read(cx)
 5877                    .user_toolchains(cx)
 5878                    .unwrap_or_default();
 5879
 5880                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5881                let docks = build_serialized_docks(self, window, cx);
 5882                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5883
 5884                let serialized_workspace = SerializedWorkspace {
 5885                    id: database_id,
 5886                    location,
 5887                    paths,
 5888                    center_group,
 5889                    window_bounds,
 5890                    display: Default::default(),
 5891                    docks,
 5892                    centered_layout: self.centered_layout,
 5893                    session_id: self.session_id.clone(),
 5894                    breakpoints,
 5895                    window_id: Some(window.window_handle().window_id().as_u64()),
 5896                    user_toolchains,
 5897                };
 5898
 5899                window.spawn(cx, async move |_| {
 5900                    persistence::DB.save_workspace(serialized_workspace).await;
 5901                })
 5902            }
 5903            WorkspaceLocation::DetachFromSession => {
 5904                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5905                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5906                // Save dock state for empty local workspaces
 5907                let docks = build_serialized_docks(self, window, cx);
 5908                window.spawn(cx, async move |_| {
 5909                    persistence::DB
 5910                        .set_window_open_status(
 5911                            database_id,
 5912                            window_bounds,
 5913                            display.unwrap_or_default(),
 5914                        )
 5915                        .await
 5916                        .log_err();
 5917                    persistence::DB
 5918                        .set_session_id(database_id, None)
 5919                        .await
 5920                        .log_err();
 5921                    persistence::write_default_dock_state(docks).await.log_err();
 5922                })
 5923            }
 5924            WorkspaceLocation::None => {
 5925                // Save dock state for empty non-local workspaces
 5926                let docks = build_serialized_docks(self, window, cx);
 5927                window.spawn(cx, async move |_| {
 5928                    persistence::write_default_dock_state(docks).await.log_err();
 5929                })
 5930            }
 5931        }
 5932    }
 5933
 5934    fn has_any_items_open(&self, cx: &App) -> bool {
 5935        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 5936    }
 5937
 5938    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5939        let paths = PathList::new(&self.root_paths(cx));
 5940        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5941            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5942        } else if self.project.read(cx).is_local() {
 5943            if !paths.is_empty() || self.has_any_items_open(cx) {
 5944                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5945            } else {
 5946                WorkspaceLocation::DetachFromSession
 5947            }
 5948        } else {
 5949            WorkspaceLocation::None
 5950        }
 5951    }
 5952
 5953    fn update_history(&self, cx: &mut App) {
 5954        let Some(id) = self.database_id() else {
 5955            return;
 5956        };
 5957        if !self.project.read(cx).is_local() {
 5958            return;
 5959        }
 5960        if let Some(manager) = HistoryManager::global(cx) {
 5961            let paths = PathList::new(&self.root_paths(cx));
 5962            manager.update(cx, |this, cx| {
 5963                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5964            });
 5965        }
 5966    }
 5967
 5968    async fn serialize_items(
 5969        this: &WeakEntity<Self>,
 5970        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5971        cx: &mut AsyncWindowContext,
 5972    ) -> Result<()> {
 5973        const CHUNK_SIZE: usize = 200;
 5974
 5975        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5976
 5977        while let Some(items_received) = serializable_items.next().await {
 5978            let unique_items =
 5979                items_received
 5980                    .into_iter()
 5981                    .fold(HashMap::default(), |mut acc, item| {
 5982                        acc.entry(item.item_id()).or_insert(item);
 5983                        acc
 5984                    });
 5985
 5986            // We use into_iter() here so that the references to the items are moved into
 5987            // the tasks and not kept alive while we're sleeping.
 5988            for (_, item) in unique_items.into_iter() {
 5989                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5990                    item.serialize(workspace, false, window, cx)
 5991                }) {
 5992                    cx.background_spawn(async move { task.await.log_err() })
 5993                        .detach();
 5994                }
 5995            }
 5996
 5997            cx.background_executor()
 5998                .timer(SERIALIZATION_THROTTLE_TIME)
 5999                .await;
 6000        }
 6001
 6002        Ok(())
 6003    }
 6004
 6005    pub(crate) fn enqueue_item_serialization(
 6006        &mut self,
 6007        item: Box<dyn SerializableItemHandle>,
 6008    ) -> Result<()> {
 6009        self.serializable_items_tx
 6010            .unbounded_send(item)
 6011            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6012    }
 6013
 6014    pub(crate) fn load_workspace(
 6015        serialized_workspace: SerializedWorkspace,
 6016        paths_to_open: Vec<Option<ProjectPath>>,
 6017        window: &mut Window,
 6018        cx: &mut Context<Workspace>,
 6019    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6020        cx.spawn_in(window, async move |workspace, cx| {
 6021            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6022
 6023            let mut center_group = None;
 6024            let mut center_items = None;
 6025
 6026            // Traverse the splits tree and add to things
 6027            if let Some((group, active_pane, items)) = serialized_workspace
 6028                .center_group
 6029                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6030                .await
 6031            {
 6032                center_items = Some(items);
 6033                center_group = Some((group, active_pane))
 6034            }
 6035
 6036            let mut items_by_project_path = HashMap::default();
 6037            let mut item_ids_by_kind = HashMap::default();
 6038            let mut all_deserialized_items = Vec::default();
 6039            cx.update(|_, cx| {
 6040                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6041                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6042                        item_ids_by_kind
 6043                            .entry(serializable_item_handle.serialized_item_kind())
 6044                            .or_insert(Vec::new())
 6045                            .push(item.item_id().as_u64() as ItemId);
 6046                    }
 6047
 6048                    if let Some(project_path) = item.project_path(cx) {
 6049                        items_by_project_path.insert(project_path, item.clone());
 6050                    }
 6051                    all_deserialized_items.push(item);
 6052                }
 6053            })?;
 6054
 6055            let opened_items = paths_to_open
 6056                .into_iter()
 6057                .map(|path_to_open| {
 6058                    path_to_open
 6059                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6060                })
 6061                .collect::<Vec<_>>();
 6062
 6063            // Remove old panes from workspace panes list
 6064            workspace.update_in(cx, |workspace, window, cx| {
 6065                if let Some((center_group, active_pane)) = center_group {
 6066                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6067
 6068                    // Swap workspace center group
 6069                    workspace.center = PaneGroup::with_root(center_group);
 6070                    workspace.center.set_is_center(true);
 6071                    workspace.center.mark_positions(cx);
 6072
 6073                    if let Some(active_pane) = active_pane {
 6074                        workspace.set_active_pane(&active_pane, window, cx);
 6075                        cx.focus_self(window);
 6076                    } else {
 6077                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6078                    }
 6079                }
 6080
 6081                let docks = serialized_workspace.docks;
 6082
 6083                for (dock, serialized_dock) in [
 6084                    (&mut workspace.right_dock, docks.right),
 6085                    (&mut workspace.left_dock, docks.left),
 6086                    (&mut workspace.bottom_dock, docks.bottom),
 6087                ]
 6088                .iter_mut()
 6089                {
 6090                    dock.update(cx, |dock, cx| {
 6091                        dock.serialized_dock = Some(serialized_dock.clone());
 6092                        dock.restore_state(window, cx);
 6093                    });
 6094                }
 6095
 6096                cx.notify();
 6097            })?;
 6098
 6099            let _ = project
 6100                .update(cx, |project, cx| {
 6101                    project
 6102                        .breakpoint_store()
 6103                        .update(cx, |breakpoint_store, cx| {
 6104                            breakpoint_store
 6105                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6106                        })
 6107                })
 6108                .await;
 6109
 6110            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6111            // after loading the items, we might have different items and in order to avoid
 6112            // the database filling up, we delete items that haven't been loaded now.
 6113            //
 6114            // The items that have been loaded, have been saved after they've been added to the workspace.
 6115            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6116                item_ids_by_kind
 6117                    .into_iter()
 6118                    .map(|(item_kind, loaded_items)| {
 6119                        SerializableItemRegistry::cleanup(
 6120                            item_kind,
 6121                            serialized_workspace.id,
 6122                            loaded_items,
 6123                            window,
 6124                            cx,
 6125                        )
 6126                        .log_err()
 6127                    })
 6128                    .collect::<Vec<_>>()
 6129            })?;
 6130
 6131            futures::future::join_all(clean_up_tasks).await;
 6132
 6133            workspace
 6134                .update_in(cx, |workspace, window, cx| {
 6135                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6136                    workspace.serialize_workspace_internal(window, cx).detach();
 6137
 6138                    // Ensure that we mark the window as edited if we did load dirty items
 6139                    workspace.update_window_edited(window, cx);
 6140                })
 6141                .ok();
 6142
 6143            Ok(opened_items)
 6144        })
 6145    }
 6146
 6147    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6148        self.add_workspace_actions_listeners(div, window, cx)
 6149            .on_action(cx.listener(
 6150                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6151                    for action in &action_sequence.0 {
 6152                        window.dispatch_action(action.boxed_clone(), cx);
 6153                    }
 6154                },
 6155            ))
 6156            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6157            .on_action(cx.listener(Self::close_all_items_and_panes))
 6158            .on_action(cx.listener(Self::save_all))
 6159            .on_action(cx.listener(Self::send_keystrokes))
 6160            .on_action(cx.listener(Self::add_folder_to_project))
 6161            .on_action(cx.listener(Self::follow_next_collaborator))
 6162            .on_action(cx.listener(Self::close_window))
 6163            .on_action(cx.listener(Self::activate_pane_at_index))
 6164            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6165            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6166            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6167            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6168                let pane = workspace.active_pane().clone();
 6169                workspace.unfollow_in_pane(&pane, window, cx);
 6170            }))
 6171            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6172                workspace
 6173                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6174                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6175            }))
 6176            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6177                workspace
 6178                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6179                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6180            }))
 6181            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6182                workspace
 6183                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6184                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6185            }))
 6186            .on_action(
 6187                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6188                    workspace.activate_previous_pane(window, cx)
 6189                }),
 6190            )
 6191            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6192                workspace.activate_next_pane(window, cx)
 6193            }))
 6194            .on_action(
 6195                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6196                    workspace.activate_next_window(cx)
 6197                }),
 6198            )
 6199            .on_action(
 6200                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6201                    workspace.activate_previous_window(cx)
 6202                }),
 6203            )
 6204            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6205                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6206            }))
 6207            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6208                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6209            }))
 6210            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6211                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6212            }))
 6213            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6214                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6215            }))
 6216            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6217                workspace.activate_next_pane(window, cx)
 6218            }))
 6219            .on_action(cx.listener(
 6220                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6221                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6222                },
 6223            ))
 6224            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6225                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6226            }))
 6227            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6228                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6229            }))
 6230            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6231                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6232            }))
 6233            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6234                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6235            }))
 6236            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6237                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6238                    SplitDirection::Down,
 6239                    SplitDirection::Up,
 6240                    SplitDirection::Right,
 6241                    SplitDirection::Left,
 6242                ];
 6243                for dir in DIRECTION_PRIORITY {
 6244                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6245                        workspace.swap_pane_in_direction(dir, cx);
 6246                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6247                        break;
 6248                    }
 6249                }
 6250            }))
 6251            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6252                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6253            }))
 6254            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6255                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6256            }))
 6257            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6258                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6259            }))
 6260            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6261                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6262            }))
 6263            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6264                this.toggle_dock(DockPosition::Left, window, cx);
 6265            }))
 6266            .on_action(cx.listener(
 6267                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6268                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6269                },
 6270            ))
 6271            .on_action(cx.listener(
 6272                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6273                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6274                },
 6275            ))
 6276            .on_action(cx.listener(
 6277                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6278                    if !workspace.close_active_dock(window, cx) {
 6279                        cx.propagate();
 6280                    }
 6281                },
 6282            ))
 6283            .on_action(
 6284                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6285                    workspace.close_all_docks(window, cx);
 6286                }),
 6287            )
 6288            .on_action(cx.listener(Self::toggle_all_docks))
 6289            .on_action(cx.listener(
 6290                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6291                    workspace.clear_all_notifications(cx);
 6292                },
 6293            ))
 6294            .on_action(cx.listener(
 6295                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6296                    workspace.clear_navigation_history(window, cx);
 6297                },
 6298            ))
 6299            .on_action(cx.listener(
 6300                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6301                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6302                        workspace.suppress_notification(&notification_id, cx);
 6303                    }
 6304                },
 6305            ))
 6306            .on_action(cx.listener(
 6307                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6308                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6309                },
 6310            ))
 6311            .on_action(
 6312                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6313                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6314                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6315                            trusted_worktrees.clear_trusted_paths()
 6316                        });
 6317                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6318                        cx.spawn(async move |_, cx| {
 6319                            if clear_task.await.log_err().is_some() {
 6320                                cx.update(|cx| reload(cx));
 6321                            }
 6322                        })
 6323                        .detach();
 6324                    }
 6325                }),
 6326            )
 6327            .on_action(cx.listener(
 6328                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6329                    workspace.reopen_closed_item(window, cx).detach();
 6330                },
 6331            ))
 6332            .on_action(cx.listener(
 6333                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6334                    for dock in workspace.all_docks() {
 6335                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6336                            let Some(panel) = dock.read(cx).active_panel() else {
 6337                                return;
 6338                            };
 6339
 6340                            // Set to `None`, then the size will fall back to the default.
 6341                            panel.clone().set_size(None, window, cx);
 6342
 6343                            return;
 6344                        }
 6345                    }
 6346                },
 6347            ))
 6348            .on_action(cx.listener(
 6349                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6350                    for dock in workspace.all_docks() {
 6351                        if let Some(panel) = dock.read(cx).visible_panel() {
 6352                            // Set to `None`, then the size will fall back to the default.
 6353                            panel.clone().set_size(None, window, cx);
 6354                        }
 6355                    }
 6356                },
 6357            ))
 6358            .on_action(cx.listener(
 6359                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6360                    adjust_active_dock_size_by_px(
 6361                        px_with_ui_font_fallback(act.px, cx),
 6362                        workspace,
 6363                        window,
 6364                        cx,
 6365                    );
 6366                },
 6367            ))
 6368            .on_action(cx.listener(
 6369                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6370                    adjust_active_dock_size_by_px(
 6371                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6372                        workspace,
 6373                        window,
 6374                        cx,
 6375                    );
 6376                },
 6377            ))
 6378            .on_action(cx.listener(
 6379                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6380                    adjust_open_docks_size_by_px(
 6381                        px_with_ui_font_fallback(act.px, cx),
 6382                        workspace,
 6383                        window,
 6384                        cx,
 6385                    );
 6386                },
 6387            ))
 6388            .on_action(cx.listener(
 6389                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6390                    adjust_open_docks_size_by_px(
 6391                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6392                        workspace,
 6393                        window,
 6394                        cx,
 6395                    );
 6396                },
 6397            ))
 6398            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6399            .on_action(cx.listener(
 6400                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6401                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6402                        let dock = active_dock.read(cx);
 6403                        if let Some(active_panel) = dock.active_panel() {
 6404                            if active_panel.pane(cx).is_none() {
 6405                                let mut recent_pane: Option<Entity<Pane>> = None;
 6406                                let mut recent_timestamp = 0;
 6407                                for pane_handle in workspace.panes() {
 6408                                    let pane = pane_handle.read(cx);
 6409                                    for entry in pane.activation_history() {
 6410                                        if entry.timestamp > recent_timestamp {
 6411                                            recent_timestamp = entry.timestamp;
 6412                                            recent_pane = Some(pane_handle.clone());
 6413                                        }
 6414                                    }
 6415                                }
 6416
 6417                                if let Some(pane) = recent_pane {
 6418                                    pane.update(cx, |pane, cx| {
 6419                                        let current_index = pane.active_item_index();
 6420                                        let items_len = pane.items_len();
 6421                                        if items_len > 0 {
 6422                                            let next_index = if current_index + 1 < items_len {
 6423                                                current_index + 1
 6424                                            } else {
 6425                                                0
 6426                                            };
 6427                                            pane.activate_item(
 6428                                                next_index, false, false, window, cx,
 6429                                            );
 6430                                        }
 6431                                    });
 6432                                    return;
 6433                                }
 6434                            }
 6435                        }
 6436                    }
 6437                    cx.propagate();
 6438                },
 6439            ))
 6440            .on_action(cx.listener(
 6441                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6442                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6443                        let dock = active_dock.read(cx);
 6444                        if let Some(active_panel) = dock.active_panel() {
 6445                            if active_panel.pane(cx).is_none() {
 6446                                let mut recent_pane: Option<Entity<Pane>> = None;
 6447                                let mut recent_timestamp = 0;
 6448                                for pane_handle in workspace.panes() {
 6449                                    let pane = pane_handle.read(cx);
 6450                                    for entry in pane.activation_history() {
 6451                                        if entry.timestamp > recent_timestamp {
 6452                                            recent_timestamp = entry.timestamp;
 6453                                            recent_pane = Some(pane_handle.clone());
 6454                                        }
 6455                                    }
 6456                                }
 6457
 6458                                if let Some(pane) = recent_pane {
 6459                                    pane.update(cx, |pane, cx| {
 6460                                        let current_index = pane.active_item_index();
 6461                                        let items_len = pane.items_len();
 6462                                        if items_len > 0 {
 6463                                            let prev_index = if current_index > 0 {
 6464                                                current_index - 1
 6465                                            } else {
 6466                                                items_len.saturating_sub(1)
 6467                                            };
 6468                                            pane.activate_item(
 6469                                                prev_index, false, false, window, cx,
 6470                                            );
 6471                                        }
 6472                                    });
 6473                                    return;
 6474                                }
 6475                            }
 6476                        }
 6477                    }
 6478                    cx.propagate();
 6479                },
 6480            ))
 6481            .on_action(cx.listener(
 6482                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6483                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6484                        let dock = active_dock.read(cx);
 6485                        if let Some(active_panel) = dock.active_panel() {
 6486                            if active_panel.pane(cx).is_none() {
 6487                                let active_pane = workspace.active_pane().clone();
 6488                                active_pane.update(cx, |pane, cx| {
 6489                                    pane.close_active_item(action, window, cx)
 6490                                        .detach_and_log_err(cx);
 6491                                });
 6492                                return;
 6493                            }
 6494                        }
 6495                    }
 6496                    cx.propagate();
 6497                },
 6498            ))
 6499            .on_action(
 6500                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6501                    let pane = workspace.active_pane().clone();
 6502                    if let Some(item) = pane.read(cx).active_item() {
 6503                        item.toggle_read_only(window, cx);
 6504                    }
 6505                }),
 6506            )
 6507            .on_action(cx.listener(Workspace::cancel))
 6508    }
 6509
 6510    #[cfg(any(test, feature = "test-support"))]
 6511    pub fn set_random_database_id(&mut self) {
 6512        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6513    }
 6514
 6515    #[cfg(any(test, feature = "test-support"))]
 6516    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6517        use node_runtime::NodeRuntime;
 6518        use session::Session;
 6519
 6520        let client = project.read(cx).client();
 6521        let user_store = project.read(cx).user_store();
 6522        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6523        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6524        window.activate_window();
 6525        let app_state = Arc::new(AppState {
 6526            languages: project.read(cx).languages().clone(),
 6527            workspace_store,
 6528            client,
 6529            user_store,
 6530            fs: project.read(cx).fs().clone(),
 6531            build_window_options: |_, _| Default::default(),
 6532            node_runtime: NodeRuntime::unavailable(),
 6533            session,
 6534        });
 6535        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6536        workspace
 6537            .active_pane
 6538            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6539        workspace
 6540    }
 6541
 6542    pub fn register_action<A: Action>(
 6543        &mut self,
 6544        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6545    ) -> &mut Self {
 6546        let callback = Arc::new(callback);
 6547
 6548        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6549            let callback = callback.clone();
 6550            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6551                (callback)(workspace, event, window, cx)
 6552            }))
 6553        }));
 6554        self
 6555    }
 6556    pub fn register_action_renderer(
 6557        &mut self,
 6558        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6559    ) -> &mut Self {
 6560        self.workspace_actions.push(Box::new(callback));
 6561        self
 6562    }
 6563
 6564    fn add_workspace_actions_listeners(
 6565        &self,
 6566        mut div: Div,
 6567        window: &mut Window,
 6568        cx: &mut Context<Self>,
 6569    ) -> Div {
 6570        for action in self.workspace_actions.iter() {
 6571            div = (action)(div, self, window, cx)
 6572        }
 6573        div
 6574    }
 6575
 6576    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6577        self.modal_layer.read(cx).has_active_modal()
 6578    }
 6579
 6580    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6581        self.modal_layer.read(cx).active_modal()
 6582    }
 6583
 6584    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6585    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6586    /// If no modal is active, the new modal will be shown.
 6587    ///
 6588    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6589    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6590    /// will not be shown.
 6591    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6592    where
 6593        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6594    {
 6595        self.modal_layer.update(cx, |modal_layer, cx| {
 6596            modal_layer.toggle_modal(window, cx, build)
 6597        })
 6598    }
 6599
 6600    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6601        self.modal_layer
 6602            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6603    }
 6604
 6605    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6606        self.toast_layer
 6607            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6608    }
 6609
 6610    pub fn toggle_centered_layout(
 6611        &mut self,
 6612        _: &ToggleCenteredLayout,
 6613        _: &mut Window,
 6614        cx: &mut Context<Self>,
 6615    ) {
 6616        self.centered_layout = !self.centered_layout;
 6617        if let Some(database_id) = self.database_id() {
 6618            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6619                .detach_and_log_err(cx);
 6620        }
 6621        cx.notify();
 6622    }
 6623
 6624    fn adjust_padding(padding: Option<f32>) -> f32 {
 6625        padding
 6626            .unwrap_or(CenteredPaddingSettings::default().0)
 6627            .clamp(
 6628                CenteredPaddingSettings::MIN_PADDING,
 6629                CenteredPaddingSettings::MAX_PADDING,
 6630            )
 6631    }
 6632
 6633    fn render_dock(
 6634        &self,
 6635        position: DockPosition,
 6636        dock: &Entity<Dock>,
 6637        window: &mut Window,
 6638        cx: &mut App,
 6639    ) -> Option<Div> {
 6640        if self.zoomed_position == Some(position) {
 6641            return None;
 6642        }
 6643
 6644        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6645            let pane = panel.pane(cx)?;
 6646            let follower_states = &self.follower_states;
 6647            leader_border_for_pane(follower_states, &pane, window, cx)
 6648        });
 6649
 6650        Some(
 6651            div()
 6652                .flex()
 6653                .flex_none()
 6654                .overflow_hidden()
 6655                .child(dock.clone())
 6656                .children(leader_border),
 6657        )
 6658    }
 6659
 6660    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6661        window.root().flatten()
 6662    }
 6663
 6664    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6665        self.zoomed.as_ref()
 6666    }
 6667
 6668    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6669        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6670            return;
 6671        };
 6672        let windows = cx.windows();
 6673        let next_window =
 6674            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6675                || {
 6676                    windows
 6677                        .iter()
 6678                        .cycle()
 6679                        .skip_while(|window| window.window_id() != current_window_id)
 6680                        .nth(1)
 6681                },
 6682            );
 6683
 6684        if let Some(window) = next_window {
 6685            window
 6686                .update(cx, |_, window, _| window.activate_window())
 6687                .ok();
 6688        }
 6689    }
 6690
 6691    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6692        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6693            return;
 6694        };
 6695        let windows = cx.windows();
 6696        let prev_window =
 6697            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6698                || {
 6699                    windows
 6700                        .iter()
 6701                        .rev()
 6702                        .cycle()
 6703                        .skip_while(|window| window.window_id() != current_window_id)
 6704                        .nth(1)
 6705                },
 6706            );
 6707
 6708        if let Some(window) = prev_window {
 6709            window
 6710                .update(cx, |_, window, _| window.activate_window())
 6711                .ok();
 6712        }
 6713    }
 6714
 6715    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6716        if cx.stop_active_drag(window) {
 6717        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6718            dismiss_app_notification(&notification_id, cx);
 6719        } else {
 6720            cx.propagate();
 6721        }
 6722    }
 6723
 6724    fn adjust_dock_size_by_px(
 6725        &mut self,
 6726        panel_size: Pixels,
 6727        dock_pos: DockPosition,
 6728        px: Pixels,
 6729        window: &mut Window,
 6730        cx: &mut Context<Self>,
 6731    ) {
 6732        match dock_pos {
 6733            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6734            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6735            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6736        }
 6737    }
 6738
 6739    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6740        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6741
 6742        self.left_dock.update(cx, |left_dock, cx| {
 6743            if WorkspaceSettings::get_global(cx)
 6744                .resize_all_panels_in_dock
 6745                .contains(&DockPosition::Left)
 6746            {
 6747                left_dock.resize_all_panels(Some(size), window, cx);
 6748            } else {
 6749                left_dock.resize_active_panel(Some(size), window, cx);
 6750            }
 6751        });
 6752        self.clamp_utility_pane_widths(window, cx);
 6753    }
 6754
 6755    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6756        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6757        self.left_dock.read_with(cx, |left_dock, cx| {
 6758            let left_dock_size = left_dock
 6759                .active_panel_size(window, cx)
 6760                .unwrap_or(Pixels::ZERO);
 6761            if left_dock_size + size > self.bounds.right() {
 6762                size = self.bounds.right() - left_dock_size
 6763            }
 6764        });
 6765        self.right_dock.update(cx, |right_dock, cx| {
 6766            if WorkspaceSettings::get_global(cx)
 6767                .resize_all_panels_in_dock
 6768                .contains(&DockPosition::Right)
 6769            {
 6770                right_dock.resize_all_panels(Some(size), window, cx);
 6771            } else {
 6772                right_dock.resize_active_panel(Some(size), window, cx);
 6773            }
 6774        });
 6775        self.clamp_utility_pane_widths(window, cx);
 6776    }
 6777
 6778    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6779        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6780        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6781            if WorkspaceSettings::get_global(cx)
 6782                .resize_all_panels_in_dock
 6783                .contains(&DockPosition::Bottom)
 6784            {
 6785                bottom_dock.resize_all_panels(Some(size), window, cx);
 6786            } else {
 6787                bottom_dock.resize_active_panel(Some(size), window, cx);
 6788            }
 6789        });
 6790        self.clamp_utility_pane_widths(window, cx);
 6791    }
 6792
 6793    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6794        let left_dock_width = self
 6795            .left_dock
 6796            .read(cx)
 6797            .active_panel_size(window, cx)
 6798            .unwrap_or(px(0.0));
 6799        let right_dock_width = self
 6800            .right_dock
 6801            .read(cx)
 6802            .active_panel_size(window, cx)
 6803            .unwrap_or(px(0.0));
 6804        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6805        center_pane_width - px(10.0)
 6806    }
 6807
 6808    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6809        let max_width = self.max_utility_pane_width(window, cx);
 6810
 6811        // Clamp left slot utility pane if it exists
 6812        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6813            let current_width = handle.width(cx);
 6814            if current_width > max_width {
 6815                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6816            }
 6817        }
 6818
 6819        // Clamp right slot utility pane if it exists
 6820        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6821            let current_width = handle.width(cx);
 6822            if current_width > max_width {
 6823                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6824            }
 6825        }
 6826    }
 6827
 6828    fn toggle_edit_predictions_all_files(
 6829        &mut self,
 6830        _: &ToggleEditPrediction,
 6831        _window: &mut Window,
 6832        cx: &mut Context<Self>,
 6833    ) {
 6834        let fs = self.project().read(cx).fs().clone();
 6835        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6836        update_settings_file(fs, cx, move |file, _| {
 6837            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6838        });
 6839    }
 6840
 6841    pub fn show_worktree_trust_security_modal(
 6842        &mut self,
 6843        toggle: bool,
 6844        window: &mut Window,
 6845        cx: &mut Context<Self>,
 6846    ) {
 6847        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6848            if toggle {
 6849                security_modal.update(cx, |security_modal, cx| {
 6850                    security_modal.dismiss(cx);
 6851                })
 6852            } else {
 6853                security_modal.update(cx, |security_modal, cx| {
 6854                    security_modal.refresh_restricted_paths(cx);
 6855                });
 6856            }
 6857        } else {
 6858            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6859                .map(|trusted_worktrees| {
 6860                    trusted_worktrees
 6861                        .read(cx)
 6862                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6863                })
 6864                .unwrap_or(false);
 6865            if has_restricted_worktrees {
 6866                let project = self.project().read(cx);
 6867                let remote_host = project
 6868                    .remote_connection_options(cx)
 6869                    .map(RemoteHostLocation::from);
 6870                let worktree_store = project.worktree_store().downgrade();
 6871                self.toggle_modal(window, cx, |_, cx| {
 6872                    SecurityModal::new(worktree_store, remote_host, cx)
 6873                });
 6874            }
 6875        }
 6876    }
 6877}
 6878
 6879fn leader_border_for_pane(
 6880    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6881    pane: &Entity<Pane>,
 6882    _: &Window,
 6883    cx: &App,
 6884) -> Option<Div> {
 6885    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6886        if state.pane() == pane {
 6887            Some((*leader_id, state))
 6888        } else {
 6889            None
 6890        }
 6891    })?;
 6892
 6893    let mut leader_color = match leader_id {
 6894        CollaboratorId::PeerId(leader_peer_id) => {
 6895            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6896            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6897
 6898            cx.theme()
 6899                .players()
 6900                .color_for_participant(leader.participant_index.0)
 6901                .cursor
 6902        }
 6903        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6904    };
 6905    leader_color.fade_out(0.3);
 6906    Some(
 6907        div()
 6908            .absolute()
 6909            .size_full()
 6910            .left_0()
 6911            .top_0()
 6912            .border_2()
 6913            .border_color(leader_color),
 6914    )
 6915}
 6916
 6917fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6918    ZED_WINDOW_POSITION
 6919        .zip(*ZED_WINDOW_SIZE)
 6920        .map(|(position, size)| Bounds {
 6921            origin: position,
 6922            size,
 6923        })
 6924}
 6925
 6926fn open_items(
 6927    serialized_workspace: Option<SerializedWorkspace>,
 6928    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6929    window: &mut Window,
 6930    cx: &mut Context<Workspace>,
 6931) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6932    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6933        Workspace::load_workspace(
 6934            serialized_workspace,
 6935            project_paths_to_open
 6936                .iter()
 6937                .map(|(_, project_path)| project_path)
 6938                .cloned()
 6939                .collect(),
 6940            window,
 6941            cx,
 6942        )
 6943    });
 6944
 6945    cx.spawn_in(window, async move |workspace, cx| {
 6946        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6947
 6948        if let Some(restored_items) = restored_items {
 6949            let restored_items = restored_items.await?;
 6950
 6951            let restored_project_paths = restored_items
 6952                .iter()
 6953                .filter_map(|item| {
 6954                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6955                        .ok()
 6956                        .flatten()
 6957                })
 6958                .collect::<HashSet<_>>();
 6959
 6960            for restored_item in restored_items {
 6961                opened_items.push(restored_item.map(Ok));
 6962            }
 6963
 6964            project_paths_to_open
 6965                .iter_mut()
 6966                .for_each(|(_, project_path)| {
 6967                    if let Some(project_path_to_open) = project_path
 6968                        && restored_project_paths.contains(project_path_to_open)
 6969                    {
 6970                        *project_path = None;
 6971                    }
 6972                });
 6973        } else {
 6974            for _ in 0..project_paths_to_open.len() {
 6975                opened_items.push(None);
 6976            }
 6977        }
 6978        assert!(opened_items.len() == project_paths_to_open.len());
 6979
 6980        let tasks =
 6981            project_paths_to_open
 6982                .into_iter()
 6983                .enumerate()
 6984                .map(|(ix, (abs_path, project_path))| {
 6985                    let workspace = workspace.clone();
 6986                    cx.spawn(async move |cx| {
 6987                        let file_project_path = project_path?;
 6988                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6989                            workspace.project().update(cx, |project, cx| {
 6990                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6991                            })
 6992                        });
 6993
 6994                        // We only want to open file paths here. If one of the items
 6995                        // here is a directory, it was already opened further above
 6996                        // with a `find_or_create_worktree`.
 6997                        if let Ok(task) = abs_path_task
 6998                            && task.await.is_none_or(|p| p.is_file())
 6999                        {
 7000                            return Some((
 7001                                ix,
 7002                                workspace
 7003                                    .update_in(cx, |workspace, window, cx| {
 7004                                        workspace.open_path(
 7005                                            file_project_path,
 7006                                            None,
 7007                                            true,
 7008                                            window,
 7009                                            cx,
 7010                                        )
 7011                                    })
 7012                                    .log_err()?
 7013                                    .await,
 7014                            ));
 7015                        }
 7016                        None
 7017                    })
 7018                });
 7019
 7020        let tasks = tasks.collect::<Vec<_>>();
 7021
 7022        let tasks = futures::future::join_all(tasks);
 7023        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7024            opened_items[ix] = Some(path_open_result);
 7025        }
 7026
 7027        Ok(opened_items)
 7028    })
 7029}
 7030
 7031enum ActivateInDirectionTarget {
 7032    Pane(Entity<Pane>),
 7033    Dock(Entity<Dock>),
 7034}
 7035
 7036fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 7037    workspace
 7038        .update(cx, |workspace, _, cx| {
 7039            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7040                struct DatabaseFailedNotification;
 7041
 7042                workspace.show_notification(
 7043                    NotificationId::unique::<DatabaseFailedNotification>(),
 7044                    cx,
 7045                    |cx| {
 7046                        cx.new(|cx| {
 7047                            MessageNotification::new("Failed to load the database file.", cx)
 7048                                .primary_message("File an Issue")
 7049                                .primary_icon(IconName::Plus)
 7050                                .primary_on_click(|window, cx| {
 7051                                    window.dispatch_action(Box::new(FileBugReport), cx)
 7052                                })
 7053                        })
 7054                    },
 7055                );
 7056            }
 7057        })
 7058        .log_err();
 7059}
 7060
 7061fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7062    if val == 0 {
 7063        ThemeSettings::get_global(cx).ui_font_size(cx)
 7064    } else {
 7065        px(val as f32)
 7066    }
 7067}
 7068
 7069fn adjust_active_dock_size_by_px(
 7070    px: Pixels,
 7071    workspace: &mut Workspace,
 7072    window: &mut Window,
 7073    cx: &mut Context<Workspace>,
 7074) {
 7075    let Some(active_dock) = workspace
 7076        .all_docks()
 7077        .into_iter()
 7078        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7079    else {
 7080        return;
 7081    };
 7082    let dock = active_dock.read(cx);
 7083    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7084        return;
 7085    };
 7086    let dock_pos = dock.position();
 7087    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7088}
 7089
 7090fn adjust_open_docks_size_by_px(
 7091    px: Pixels,
 7092    workspace: &mut Workspace,
 7093    window: &mut Window,
 7094    cx: &mut Context<Workspace>,
 7095) {
 7096    let docks = workspace
 7097        .all_docks()
 7098        .into_iter()
 7099        .filter_map(|dock| {
 7100            if dock.read(cx).is_open() {
 7101                let dock = dock.read(cx);
 7102                let panel_size = dock.active_panel_size(window, cx)?;
 7103                let dock_pos = dock.position();
 7104                Some((panel_size, dock_pos, px))
 7105            } else {
 7106                None
 7107            }
 7108        })
 7109        .collect::<Vec<_>>();
 7110
 7111    docks
 7112        .into_iter()
 7113        .for_each(|(panel_size, dock_pos, offset)| {
 7114            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7115        });
 7116}
 7117
 7118impl Focusable for Workspace {
 7119    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7120        self.active_pane.focus_handle(cx)
 7121    }
 7122}
 7123
 7124#[derive(Clone)]
 7125struct DraggedDock(DockPosition);
 7126
 7127impl Render for DraggedDock {
 7128    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7129        gpui::Empty
 7130    }
 7131}
 7132
 7133impl Render for Workspace {
 7134    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7135        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7136        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7137            log::info!("Rendered first frame");
 7138        }
 7139        let mut context = KeyContext::new_with_defaults();
 7140        context.add("Workspace");
 7141        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 7142        if let Some(status) = self
 7143            .debugger_provider
 7144            .as_ref()
 7145            .and_then(|provider| provider.active_thread_state(cx))
 7146        {
 7147            match status {
 7148                ThreadStatus::Running | ThreadStatus::Stepping => {
 7149                    context.add("debugger_running");
 7150                }
 7151                ThreadStatus::Stopped => context.add("debugger_stopped"),
 7152                ThreadStatus::Exited | ThreadStatus::Ended => {}
 7153            }
 7154        }
 7155
 7156        if self.left_dock.read(cx).is_open() {
 7157            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 7158                context.set("left_dock", active_panel.panel_key());
 7159            }
 7160        }
 7161
 7162        if self.right_dock.read(cx).is_open() {
 7163            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 7164                context.set("right_dock", active_panel.panel_key());
 7165            }
 7166        }
 7167
 7168        if self.bottom_dock.read(cx).is_open() {
 7169            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 7170                context.set("bottom_dock", active_panel.panel_key());
 7171            }
 7172        }
 7173
 7174        let centered_layout = self.centered_layout
 7175            && self.center.panes().len() == 1
 7176            && self.active_item(cx).is_some();
 7177        let render_padding = |size| {
 7178            (size > 0.0).then(|| {
 7179                div()
 7180                    .h_full()
 7181                    .w(relative(size))
 7182                    .bg(cx.theme().colors().editor_background)
 7183                    .border_color(cx.theme().colors().pane_group_border)
 7184            })
 7185        };
 7186        let paddings = if centered_layout {
 7187            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7188            (
 7189                render_padding(Self::adjust_padding(
 7190                    settings.left_padding.map(|padding| padding.0),
 7191                )),
 7192                render_padding(Self::adjust_padding(
 7193                    settings.right_padding.map(|padding| padding.0),
 7194                )),
 7195            )
 7196        } else {
 7197            (None, None)
 7198        };
 7199        let ui_font = theme::setup_ui_font(window, cx);
 7200
 7201        let theme = cx.theme().clone();
 7202        let colors = theme.colors();
 7203        let notification_entities = self
 7204            .notifications
 7205            .iter()
 7206            .map(|(_, notification)| notification.entity_id())
 7207            .collect::<Vec<_>>();
 7208        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7209
 7210        client_side_decorations(
 7211            self.actions(div(), window, cx)
 7212                .key_context(context)
 7213                .relative()
 7214                .size_full()
 7215                .flex()
 7216                .flex_col()
 7217                .font(ui_font)
 7218                .gap_0()
 7219                .justify_start()
 7220                .items_start()
 7221                .text_color(colors.text)
 7222                .overflow_hidden()
 7223                .children(self.titlebar_item.clone())
 7224                .on_modifiers_changed(move |_, _, cx| {
 7225                    for &id in &notification_entities {
 7226                        cx.notify(id);
 7227                    }
 7228                })
 7229                .child(
 7230                    div()
 7231                        .size_full()
 7232                        .relative()
 7233                        .flex_1()
 7234                        .flex()
 7235                        .flex_col()
 7236                        .child(
 7237                            div()
 7238                                .id("workspace")
 7239                                .bg(colors.background)
 7240                                .relative()
 7241                                .flex_1()
 7242                                .w_full()
 7243                                .flex()
 7244                                .flex_col()
 7245                                .overflow_hidden()
 7246                                .border_t_1()
 7247                                .border_b_1()
 7248                                .border_color(colors.border)
 7249                                .child({
 7250                                    let this = cx.entity();
 7251                                    canvas(
 7252                                        move |bounds, window, cx| {
 7253                                            this.update(cx, |this, cx| {
 7254                                                let bounds_changed = this.bounds != bounds;
 7255                                                this.bounds = bounds;
 7256
 7257                                                if bounds_changed {
 7258                                                    this.left_dock.update(cx, |dock, cx| {
 7259                                                        dock.clamp_panel_size(
 7260                                                            bounds.size.width,
 7261                                                            window,
 7262                                                            cx,
 7263                                                        )
 7264                                                    });
 7265
 7266                                                    this.right_dock.update(cx, |dock, cx| {
 7267                                                        dock.clamp_panel_size(
 7268                                                            bounds.size.width,
 7269                                                            window,
 7270                                                            cx,
 7271                                                        )
 7272                                                    });
 7273
 7274                                                    this.bottom_dock.update(cx, |dock, cx| {
 7275                                                        dock.clamp_panel_size(
 7276                                                            bounds.size.height,
 7277                                                            window,
 7278                                                            cx,
 7279                                                        )
 7280                                                    });
 7281                                                }
 7282                                            })
 7283                                        },
 7284                                        |_, _, _, _| {},
 7285                                    )
 7286                                    .absolute()
 7287                                    .size_full()
 7288                                })
 7289                                .when(self.zoomed.is_none(), |this| {
 7290                                    this.on_drag_move(cx.listener(
 7291                                        move |workspace,
 7292                                              e: &DragMoveEvent<DraggedDock>,
 7293                                              window,
 7294                                              cx| {
 7295                                            if workspace.previous_dock_drag_coordinates
 7296                                                != Some(e.event.position)
 7297                                            {
 7298                                                workspace.previous_dock_drag_coordinates =
 7299                                                    Some(e.event.position);
 7300                                                match e.drag(cx).0 {
 7301                                                    DockPosition::Left => {
 7302                                                        workspace.resize_left_dock(
 7303                                                            e.event.position.x
 7304                                                                - workspace.bounds.left(),
 7305                                                            window,
 7306                                                            cx,
 7307                                                        );
 7308                                                    }
 7309                                                    DockPosition::Right => {
 7310                                                        workspace.resize_right_dock(
 7311                                                            workspace.bounds.right()
 7312                                                                - e.event.position.x,
 7313                                                            window,
 7314                                                            cx,
 7315                                                        );
 7316                                                    }
 7317                                                    DockPosition::Bottom => {
 7318                                                        workspace.resize_bottom_dock(
 7319                                                            workspace.bounds.bottom()
 7320                                                                - e.event.position.y,
 7321                                                            window,
 7322                                                            cx,
 7323                                                        );
 7324                                                    }
 7325                                                };
 7326                                                workspace.serialize_workspace(window, cx);
 7327                                            }
 7328                                        },
 7329                                    ))
 7330                                    .on_drag_move(cx.listener(
 7331                                        move |workspace,
 7332                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7333                                              window,
 7334                                              cx| {
 7335                                            let slot = e.drag(cx).0;
 7336                                            match slot {
 7337                                                UtilityPaneSlot::Left => {
 7338                                                    let left_dock_width = workspace.left_dock.read(cx)
 7339                                                        .active_panel_size(window, cx)
 7340                                                        .unwrap_or(gpui::px(0.0));
 7341                                                    let new_width = e.event.position.x
 7342                                                        - workspace.bounds.left()
 7343                                                        - left_dock_width;
 7344                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7345                                                }
 7346                                                UtilityPaneSlot::Right => {
 7347                                                    let right_dock_width = workspace.right_dock.read(cx)
 7348                                                        .active_panel_size(window, cx)
 7349                                                        .unwrap_or(gpui::px(0.0));
 7350                                                    let new_width = workspace.bounds.right()
 7351                                                        - e.event.position.x
 7352                                                        - right_dock_width;
 7353                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7354                                                }
 7355                                            }
 7356                                        },
 7357                                    ))
 7358                                })
 7359                                .child({
 7360                                    match bottom_dock_layout {
 7361                                        BottomDockLayout::Full => div()
 7362                                            .flex()
 7363                                            .flex_col()
 7364                                            .h_full()
 7365                                            .child(
 7366                                                div()
 7367                                                    .flex()
 7368                                                    .flex_row()
 7369                                                    .flex_1()
 7370                                                    .overflow_hidden()
 7371                                                    .children(self.render_dock(
 7372                                                        DockPosition::Left,
 7373                                                        &self.left_dock,
 7374                                                        window,
 7375                                                        cx,
 7376                                                    ))
 7377                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7378                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7379                                                            this.when(pane.expanded(cx), |this| {
 7380                                                                this.child(
 7381                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7382                                                                )
 7383                                                            })
 7384                                                        })
 7385                                                    })
 7386                                                    .child(
 7387                                                        div()
 7388                                                            .flex()
 7389                                                            .flex_col()
 7390                                                            .flex_1()
 7391                                                            .overflow_hidden()
 7392                                                            .child(
 7393                                                                h_flex()
 7394                                                                    .flex_1()
 7395                                                                    .when_some(
 7396                                                                        paddings.0,
 7397                                                                        |this, p| {
 7398                                                                            this.child(
 7399                                                                                p.border_r_1(),
 7400                                                                            )
 7401                                                                        },
 7402                                                                    )
 7403                                                                    .child(self.center.render(
 7404                                                                        self.zoomed.as_ref(),
 7405                                                                        &PaneRenderContext {
 7406                                                                            follower_states:
 7407                                                                                &self.follower_states,
 7408                                                                            active_call: self.active_call(),
 7409                                                                            active_pane: &self.active_pane,
 7410                                                                            app_state: &self.app_state,
 7411                                                                            project: &self.project,
 7412                                                                            workspace: &self.weak_self,
 7413                                                                        },
 7414                                                                        window,
 7415                                                                        cx,
 7416                                                                    ))
 7417                                                                    .when_some(
 7418                                                                        paddings.1,
 7419                                                                        |this, p| {
 7420                                                                            this.child(
 7421                                                                                p.border_l_1(),
 7422                                                                            )
 7423                                                                        },
 7424                                                                    ),
 7425                                                            ),
 7426                                                    )
 7427                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7428                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7429                                                            this.when(pane.expanded(cx), |this| {
 7430                                                                this.child(
 7431                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7432                                                                )
 7433                                                            })
 7434                                                        })
 7435                                                    })
 7436                                                    .children(self.render_dock(
 7437                                                        DockPosition::Right,
 7438                                                        &self.right_dock,
 7439                                                        window,
 7440                                                        cx,
 7441                                                    )),
 7442                                            )
 7443                                            .child(div().w_full().children(self.render_dock(
 7444                                                DockPosition::Bottom,
 7445                                                &self.bottom_dock,
 7446                                                window,
 7447                                                cx
 7448                                            ))),
 7449
 7450                                        BottomDockLayout::LeftAligned => div()
 7451                                            .flex()
 7452                                            .flex_row()
 7453                                            .h_full()
 7454                                            .child(
 7455                                                div()
 7456                                                    .flex()
 7457                                                    .flex_col()
 7458                                                    .flex_1()
 7459                                                    .h_full()
 7460                                                    .child(
 7461                                                        div()
 7462                                                            .flex()
 7463                                                            .flex_row()
 7464                                                            .flex_1()
 7465                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7466                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7467                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7468                                                                    this.when(pane.expanded(cx), |this| {
 7469                                                                        this.child(
 7470                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7471                                                                        )
 7472                                                                    })
 7473                                                                })
 7474                                                            })
 7475                                                            .child(
 7476                                                                div()
 7477                                                                    .flex()
 7478                                                                    .flex_col()
 7479                                                                    .flex_1()
 7480                                                                    .overflow_hidden()
 7481                                                                    .child(
 7482                                                                        h_flex()
 7483                                                                            .flex_1()
 7484                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7485                                                                            .child(self.center.render(
 7486                                                                                self.zoomed.as_ref(),
 7487                                                                                &PaneRenderContext {
 7488                                                                                    follower_states:
 7489                                                                                        &self.follower_states,
 7490                                                                                    active_call: self.active_call(),
 7491                                                                                    active_pane: &self.active_pane,
 7492                                                                                    app_state: &self.app_state,
 7493                                                                                    project: &self.project,
 7494                                                                                    workspace: &self.weak_self,
 7495                                                                                },
 7496                                                                                window,
 7497                                                                                cx,
 7498                                                                            ))
 7499                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7500                                                                    )
 7501                                                            )
 7502                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7503                                                                this.when(pane.expanded(cx), |this| {
 7504                                                                    this.child(
 7505                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7506                                                                    )
 7507                                                                })
 7508                                                            })
 7509                                                    )
 7510                                                    .child(
 7511                                                        div()
 7512                                                            .w_full()
 7513                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7514                                                    ),
 7515                                            )
 7516                                            .children(self.render_dock(
 7517                                                DockPosition::Right,
 7518                                                &self.right_dock,
 7519                                                window,
 7520                                                cx,
 7521                                            )),
 7522
 7523                                        BottomDockLayout::RightAligned => div()
 7524                                            .flex()
 7525                                            .flex_row()
 7526                                            .h_full()
 7527                                            .children(self.render_dock(
 7528                                                DockPosition::Left,
 7529                                                &self.left_dock,
 7530                                                window,
 7531                                                cx,
 7532                                            ))
 7533                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7534                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7535                                                    this.when(pane.expanded(cx), |this| {
 7536                                                        this.child(
 7537                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7538                                                        )
 7539                                                    })
 7540                                                })
 7541                                            })
 7542                                            .child(
 7543                                                div()
 7544                                                    .flex()
 7545                                                    .flex_col()
 7546                                                    .flex_1()
 7547                                                    .h_full()
 7548                                                    .child(
 7549                                                        div()
 7550                                                            .flex()
 7551                                                            .flex_row()
 7552                                                            .flex_1()
 7553                                                            .child(
 7554                                                                div()
 7555                                                                    .flex()
 7556                                                                    .flex_col()
 7557                                                                    .flex_1()
 7558                                                                    .overflow_hidden()
 7559                                                                    .child(
 7560                                                                        h_flex()
 7561                                                                            .flex_1()
 7562                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7563                                                                            .child(self.center.render(
 7564                                                                                self.zoomed.as_ref(),
 7565                                                                                &PaneRenderContext {
 7566                                                                                    follower_states:
 7567                                                                                        &self.follower_states,
 7568                                                                                    active_call: self.active_call(),
 7569                                                                                    active_pane: &self.active_pane,
 7570                                                                                    app_state: &self.app_state,
 7571                                                                                    project: &self.project,
 7572                                                                                    workspace: &self.weak_self,
 7573                                                                                },
 7574                                                                                window,
 7575                                                                                cx,
 7576                                                                            ))
 7577                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7578                                                                    )
 7579                                                            )
 7580                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7581                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7582                                                                    this.when(pane.expanded(cx), |this| {
 7583                                                                        this.child(
 7584                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7585                                                                        )
 7586                                                                    })
 7587                                                                })
 7588                                                            })
 7589                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7590                                                    )
 7591                                                    .child(
 7592                                                        div()
 7593                                                            .w_full()
 7594                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7595                                                    ),
 7596                                            ),
 7597
 7598                                        BottomDockLayout::Contained => div()
 7599                                            .flex()
 7600                                            .flex_row()
 7601                                            .h_full()
 7602                                            .children(self.render_dock(
 7603                                                DockPosition::Left,
 7604                                                &self.left_dock,
 7605                                                window,
 7606                                                cx,
 7607                                            ))
 7608                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7609                                                this.when(pane.expanded(cx), |this| {
 7610                                                    this.child(
 7611                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7612                                                    )
 7613                                                })
 7614                                            })
 7615                                            .child(
 7616                                                div()
 7617                                                    .flex()
 7618                                                    .flex_col()
 7619                                                    .flex_1()
 7620                                                    .overflow_hidden()
 7621                                                    .child(
 7622                                                        h_flex()
 7623                                                            .flex_1()
 7624                                                            .when_some(paddings.0, |this, p| {
 7625                                                                this.child(p.border_r_1())
 7626                                                            })
 7627                                                            .child(self.center.render(
 7628                                                                self.zoomed.as_ref(),
 7629                                                                &PaneRenderContext {
 7630                                                                    follower_states:
 7631                                                                        &self.follower_states,
 7632                                                                    active_call: self.active_call(),
 7633                                                                    active_pane: &self.active_pane,
 7634                                                                    app_state: &self.app_state,
 7635                                                                    project: &self.project,
 7636                                                                    workspace: &self.weak_self,
 7637                                                                },
 7638                                                                window,
 7639                                                                cx,
 7640                                                            ))
 7641                                                            .when_some(paddings.1, |this, p| {
 7642                                                                this.child(p.border_l_1())
 7643                                                            }),
 7644                                                    )
 7645                                                    .children(self.render_dock(
 7646                                                        DockPosition::Bottom,
 7647                                                        &self.bottom_dock,
 7648                                                        window,
 7649                                                        cx,
 7650                                                    )),
 7651                                            )
 7652                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7653                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7654                                                    this.when(pane.expanded(cx), |this| {
 7655                                                        this.child(
 7656                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7657                                                        )
 7658                                                    })
 7659                                                })
 7660                                            })
 7661                                            .children(self.render_dock(
 7662                                                DockPosition::Right,
 7663                                                &self.right_dock,
 7664                                                window,
 7665                                                cx,
 7666                                            )),
 7667                                    }
 7668                                })
 7669                                .children(self.zoomed.as_ref().and_then(|view| {
 7670                                    let zoomed_view = view.upgrade()?;
 7671                                    let div = div()
 7672                                        .occlude()
 7673                                        .absolute()
 7674                                        .overflow_hidden()
 7675                                        .border_color(colors.border)
 7676                                        .bg(colors.background)
 7677                                        .child(zoomed_view)
 7678                                        .inset_0()
 7679                                        .shadow_lg();
 7680
 7681                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7682                                       return Some(div);
 7683                                    }
 7684
 7685                                    Some(match self.zoomed_position {
 7686                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7687                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7688                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7689                                        None => {
 7690                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7691                                        }
 7692                                    })
 7693                                }))
 7694                                .children(self.render_notifications(window, cx)),
 7695                        )
 7696                        .when(self.status_bar_visible(cx), |parent| {
 7697                            parent.child(self.status_bar.clone())
 7698                        })
 7699                        .child(self.modal_layer.clone())
 7700                        .child(self.toast_layer.clone()),
 7701                ),
 7702            window,
 7703            cx,
 7704        )
 7705    }
 7706}
 7707
 7708impl WorkspaceStore {
 7709    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7710        Self {
 7711            workspaces: Default::default(),
 7712            _subscriptions: vec![
 7713                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7714                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7715            ],
 7716            client,
 7717        }
 7718    }
 7719
 7720    pub fn update_followers(
 7721        &self,
 7722        project_id: Option<u64>,
 7723        update: proto::update_followers::Variant,
 7724        cx: &App,
 7725    ) -> Option<()> {
 7726        let active_call = ActiveCall::try_global(cx)?;
 7727        let room_id = active_call.read(cx).room()?.read(cx).id();
 7728        self.client
 7729            .send(proto::UpdateFollowers {
 7730                room_id,
 7731                project_id,
 7732                variant: Some(update),
 7733            })
 7734            .log_err()
 7735    }
 7736
 7737    pub async fn handle_follow(
 7738        this: Entity<Self>,
 7739        envelope: TypedEnvelope<proto::Follow>,
 7740        mut cx: AsyncApp,
 7741    ) -> Result<proto::FollowResponse> {
 7742        this.update(&mut cx, |this, cx| {
 7743            let follower = Follower {
 7744                project_id: envelope.payload.project_id,
 7745                peer_id: envelope.original_sender_id()?,
 7746            };
 7747
 7748            let mut response = proto::FollowResponse::default();
 7749            this.workspaces.retain(|workspace| {
 7750                workspace
 7751                    .update(cx, |workspace, window, cx| {
 7752                        let handler_response =
 7753                            workspace.handle_follow(follower.project_id, window, cx);
 7754                        if let Some(active_view) = handler_response.active_view
 7755                            && workspace.project.read(cx).remote_id() == follower.project_id
 7756                        {
 7757                            response.active_view = Some(active_view)
 7758                        }
 7759                    })
 7760                    .is_ok()
 7761            });
 7762
 7763            Ok(response)
 7764        })
 7765    }
 7766
 7767    async fn handle_update_followers(
 7768        this: Entity<Self>,
 7769        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7770        mut cx: AsyncApp,
 7771    ) -> Result<()> {
 7772        let leader_id = envelope.original_sender_id()?;
 7773        let update = envelope.payload;
 7774
 7775        this.update(&mut cx, |this, cx| {
 7776            this.workspaces.retain(|workspace| {
 7777                workspace
 7778                    .update(cx, |workspace, window, cx| {
 7779                        let project_id = workspace.project.read(cx).remote_id();
 7780                        if update.project_id != project_id && update.project_id.is_some() {
 7781                            return;
 7782                        }
 7783                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7784                    })
 7785                    .is_ok()
 7786            });
 7787            Ok(())
 7788        })
 7789    }
 7790
 7791    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7792        &self.workspaces
 7793    }
 7794}
 7795
 7796impl ViewId {
 7797    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7798        Ok(Self {
 7799            creator: message
 7800                .creator
 7801                .map(CollaboratorId::PeerId)
 7802                .context("creator is missing")?,
 7803            id: message.id,
 7804        })
 7805    }
 7806
 7807    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7808        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7809            Some(proto::ViewId {
 7810                creator: Some(peer_id),
 7811                id: self.id,
 7812            })
 7813        } else {
 7814            None
 7815        }
 7816    }
 7817}
 7818
 7819impl FollowerState {
 7820    fn pane(&self) -> &Entity<Pane> {
 7821        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7822    }
 7823}
 7824
 7825pub trait WorkspaceHandle {
 7826    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7827}
 7828
 7829impl WorkspaceHandle for Entity<Workspace> {
 7830    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7831        self.read(cx)
 7832            .worktrees(cx)
 7833            .flat_map(|worktree| {
 7834                let worktree_id = worktree.read(cx).id();
 7835                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7836                    worktree_id,
 7837                    path: f.path.clone(),
 7838                })
 7839            })
 7840            .collect::<Vec<_>>()
 7841    }
 7842}
 7843
 7844pub async fn last_opened_workspace_location()
 7845-> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 7846    DB.last_workspace().await.log_err().flatten()
 7847}
 7848
 7849pub fn last_session_workspace_locations(
 7850    last_session_id: &str,
 7851    last_session_window_stack: Option<Vec<WindowId>>,
 7852) -> Option<Vec<(WorkspaceId, SerializedWorkspaceLocation, PathList)>> {
 7853    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7854        .log_err()
 7855}
 7856
 7857actions!(
 7858    collab,
 7859    [
 7860        /// Opens the channel notes for the current call.
 7861        ///
 7862        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7863        /// channel in the collab panel.
 7864        ///
 7865        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7866        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7867        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7868        OpenChannelNotes,
 7869        /// Mutes your microphone.
 7870        Mute,
 7871        /// Deafens yourself (mute both microphone and speakers).
 7872        Deafen,
 7873        /// Leaves the current call.
 7874        LeaveCall,
 7875        /// Shares the current project with collaborators.
 7876        ShareProject,
 7877        /// Shares your screen with collaborators.
 7878        ScreenShare,
 7879        /// Copies the current room name and session id for debugging purposes.
 7880        CopyRoomId,
 7881    ]
 7882);
 7883actions!(
 7884    zed,
 7885    [
 7886        /// Opens the Zed log file.
 7887        OpenLog,
 7888        /// Reveals the Zed log file in the system file manager.
 7889        RevealLogInFileManager
 7890    ]
 7891);
 7892
 7893async fn join_channel_internal(
 7894    channel_id: ChannelId,
 7895    app_state: &Arc<AppState>,
 7896    requesting_window: Option<WindowHandle<Workspace>>,
 7897    active_call: &Entity<ActiveCall>,
 7898    cx: &mut AsyncApp,
 7899) -> Result<bool> {
 7900    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7901        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7902            return (false, None);
 7903        };
 7904
 7905        let already_in_channel = room.channel_id() == Some(channel_id);
 7906        let should_prompt = room.is_sharing_project()
 7907            && !room.remote_participants().is_empty()
 7908            && !already_in_channel;
 7909        let open_room = if already_in_channel {
 7910            active_call.room().cloned()
 7911        } else {
 7912            None
 7913        };
 7914        (should_prompt, open_room)
 7915    });
 7916
 7917    if let Some(room) = open_room {
 7918        let task = room.update(cx, |room, cx| {
 7919            if let Some((project, host)) = room.most_active_project(cx) {
 7920                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7921            }
 7922
 7923            None
 7924        });
 7925        if let Some(task) = task {
 7926            task.await?;
 7927        }
 7928        return anyhow::Ok(true);
 7929    }
 7930
 7931    if should_prompt {
 7932        if let Some(workspace) = requesting_window {
 7933            let answer = workspace
 7934                .update(cx, |_, window, cx| {
 7935                    window.prompt(
 7936                        PromptLevel::Warning,
 7937                        "Do you want to switch channels?",
 7938                        Some("Leaving this call will unshare your current project."),
 7939                        &["Yes, Join Channel", "Cancel"],
 7940                        cx,
 7941                    )
 7942                })?
 7943                .await;
 7944
 7945            if answer == Ok(1) {
 7946                return Ok(false);
 7947            }
 7948        } else {
 7949            return Ok(false); // unreachable!() hopefully
 7950        }
 7951    }
 7952
 7953    let client = cx.update(|cx| active_call.read(cx).client());
 7954
 7955    let mut client_status = client.status();
 7956
 7957    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7958    'outer: loop {
 7959        let Some(status) = client_status.recv().await else {
 7960            anyhow::bail!("error connecting");
 7961        };
 7962
 7963        match status {
 7964            Status::Connecting
 7965            | Status::Authenticating
 7966            | Status::Authenticated
 7967            | Status::Reconnecting
 7968            | Status::Reauthenticating
 7969            | Status::Reauthenticated => continue,
 7970            Status::Connected { .. } => break 'outer,
 7971            Status::SignedOut | Status::AuthenticationError => {
 7972                return Err(ErrorCode::SignedOut.into());
 7973            }
 7974            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7975            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7976                return Err(ErrorCode::Disconnected.into());
 7977            }
 7978        }
 7979    }
 7980
 7981    let room = active_call
 7982        .update(cx, |active_call, cx| {
 7983            active_call.join_channel(channel_id, cx)
 7984        })
 7985        .await?;
 7986
 7987    let Some(room) = room else {
 7988        return anyhow::Ok(true);
 7989    };
 7990
 7991    room.update(cx, |room, _| room.room_update_completed())
 7992        .await;
 7993
 7994    let task = room.update(cx, |room, cx| {
 7995        if let Some((project, host)) = room.most_active_project(cx) {
 7996            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7997        }
 7998
 7999        // If you are the first to join a channel, see if you should share your project.
 8000        if room.remote_participants().is_empty()
 8001            && !room.local_participant_is_guest()
 8002            && let Some(workspace) = requesting_window
 8003        {
 8004            let project = workspace.update(cx, |workspace, _, cx| {
 8005                let project = workspace.project.read(cx);
 8006
 8007                if !CallSettings::get_global(cx).share_on_join {
 8008                    return None;
 8009                }
 8010
 8011                if (project.is_local() || project.is_via_remote_server())
 8012                    && project.visible_worktrees(cx).any(|tree| {
 8013                        tree.read(cx)
 8014                            .root_entry()
 8015                            .is_some_and(|entry| entry.is_dir())
 8016                    })
 8017                {
 8018                    Some(workspace.project.clone())
 8019                } else {
 8020                    None
 8021                }
 8022            });
 8023            if let Ok(Some(project)) = project {
 8024                return Some(cx.spawn(async move |room, cx| {
 8025                    room.update(cx, |room, cx| room.share_project(project, cx))?
 8026                        .await?;
 8027                    Ok(())
 8028                }));
 8029            }
 8030        }
 8031
 8032        None
 8033    });
 8034    if let Some(task) = task {
 8035        task.await?;
 8036        return anyhow::Ok(true);
 8037    }
 8038    anyhow::Ok(false)
 8039}
 8040
 8041pub fn join_channel(
 8042    channel_id: ChannelId,
 8043    app_state: Arc<AppState>,
 8044    requesting_window: Option<WindowHandle<Workspace>>,
 8045    cx: &mut App,
 8046) -> Task<Result<()>> {
 8047    let active_call = ActiveCall::global(cx);
 8048    cx.spawn(async move |cx| {
 8049        let result =
 8050            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 8051                .await;
 8052
 8053        // join channel succeeded, and opened a window
 8054        if matches!(result, Ok(true)) {
 8055            return anyhow::Ok(());
 8056        }
 8057
 8058        // find an existing workspace to focus and show call controls
 8059        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8060        if active_window.is_none() {
 8061            // no open workspaces, make one to show the error in (blergh)
 8062            let (window_handle, _) = cx
 8063                .update(|cx| {
 8064                    Workspace::new_local(
 8065                        vec![],
 8066                        app_state.clone(),
 8067                        requesting_window,
 8068                        None,
 8069                        None,
 8070                        cx,
 8071                    )
 8072                })
 8073                .await?;
 8074
 8075            if result.is_ok() {
 8076                cx.update(|cx| {
 8077                    cx.dispatch_action(&OpenChannelNotes);
 8078                });
 8079            }
 8080
 8081            active_window = Some(window_handle);
 8082        }
 8083
 8084        if let Err(err) = result {
 8085            log::error!("failed to join channel: {}", err);
 8086            if let Some(active_window) = active_window {
 8087                active_window
 8088                    .update(cx, |_, window, cx| {
 8089                        let detail: SharedString = match err.error_code() {
 8090                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8091                            ErrorCode::UpgradeRequired => concat!(
 8092                                "Your are running an unsupported version of Zed. ",
 8093                                "Please update to continue."
 8094                            )
 8095                            .into(),
 8096                            ErrorCode::NoSuchChannel => concat!(
 8097                                "No matching channel was found. ",
 8098                                "Please check the link and try again."
 8099                            )
 8100                            .into(),
 8101                            ErrorCode::Forbidden => concat!(
 8102                                "This channel is private, and you do not have access. ",
 8103                                "Please ask someone to add you and try again."
 8104                            )
 8105                            .into(),
 8106                            ErrorCode::Disconnected => {
 8107                                "Please check your internet connection and try again.".into()
 8108                            }
 8109                            _ => format!("{}\n\nPlease try again.", err).into(),
 8110                        };
 8111                        window.prompt(
 8112                            PromptLevel::Critical,
 8113                            "Failed to join channel",
 8114                            Some(&detail),
 8115                            &["Ok"],
 8116                            cx,
 8117                        )
 8118                    })?
 8119                    .await
 8120                    .ok();
 8121            }
 8122        }
 8123
 8124        // return ok, we showed the error to the user.
 8125        anyhow::Ok(())
 8126    })
 8127}
 8128
 8129pub async fn get_any_active_workspace(
 8130    app_state: Arc<AppState>,
 8131    mut cx: AsyncApp,
 8132) -> anyhow::Result<WindowHandle<Workspace>> {
 8133    // find an existing workspace to focus and show call controls
 8134    let active_window = activate_any_workspace_window(&mut cx);
 8135    if active_window.is_none() {
 8136        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))
 8137            .await?;
 8138    }
 8139    activate_any_workspace_window(&mut cx).context("could not open zed")
 8140}
 8141
 8142fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 8143    cx.update(|cx| {
 8144        if let Some(workspace_window) = cx
 8145            .active_window()
 8146            .and_then(|window| window.downcast::<Workspace>())
 8147        {
 8148            return Some(workspace_window);
 8149        }
 8150
 8151        for window in cx.windows() {
 8152            if let Some(workspace_window) = window.downcast::<Workspace>() {
 8153                workspace_window
 8154                    .update(cx, |_, window, _| window.activate_window())
 8155                    .ok();
 8156                return Some(workspace_window);
 8157            }
 8158        }
 8159        None
 8160    })
 8161}
 8162
 8163pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 8164    cx.windows()
 8165        .into_iter()
 8166        .filter_map(|window| window.downcast::<Workspace>())
 8167        .filter(|workspace| {
 8168            workspace
 8169                .read(cx)
 8170                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 8171        })
 8172        .collect()
 8173}
 8174
 8175#[derive(Default)]
 8176pub struct OpenOptions {
 8177    pub visible: Option<OpenVisible>,
 8178    pub focus: Option<bool>,
 8179    pub open_new_workspace: Option<bool>,
 8180    pub prefer_focused_window: bool,
 8181    pub replace_window: Option<WindowHandle<Workspace>>,
 8182    pub env: Option<HashMap<String, String>>,
 8183}
 8184
 8185/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 8186pub fn open_workspace_by_id(
 8187    workspace_id: WorkspaceId,
 8188    app_state: Arc<AppState>,
 8189    cx: &mut App,
 8190) -> Task<anyhow::Result<WindowHandle<Workspace>>> {
 8191    let project_handle = Project::local(
 8192        app_state.client.clone(),
 8193        app_state.node_runtime.clone(),
 8194        app_state.user_store.clone(),
 8195        app_state.languages.clone(),
 8196        app_state.fs.clone(),
 8197        None,
 8198        project::LocalProjectFlags {
 8199            init_worktree_trust: true,
 8200            ..project::LocalProjectFlags::default()
 8201        },
 8202        cx,
 8203    );
 8204
 8205    cx.spawn(async move |cx| {
 8206        let serialized_workspace = persistence::DB
 8207            .workspace_for_id(workspace_id)
 8208            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 8209
 8210        let window_bounds_override = window_bounds_env_override();
 8211
 8212        let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 8213            (Some(WindowBounds::Windowed(bounds)), None)
 8214        } else if let Some(display) = serialized_workspace.display
 8215            && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 8216        {
 8217            (Some(bounds.0), Some(display))
 8218        } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 8219            (Some(bounds), Some(display))
 8220        } else {
 8221            (None, None)
 8222        };
 8223
 8224        let options = cx.update(|cx| {
 8225            let mut options = (app_state.build_window_options)(display, cx);
 8226            options.window_bounds = window_bounds;
 8227            options
 8228        });
 8229        let centered_layout = serialized_workspace.centered_layout;
 8230
 8231        let window = cx.open_window(options, {
 8232            let app_state = app_state.clone();
 8233            let project_handle = project_handle.clone();
 8234            move |window, cx| {
 8235                cx.new(|cx| {
 8236                    let mut workspace =
 8237                        Workspace::new(Some(workspace_id), project_handle, app_state, window, cx);
 8238                    workspace.centered_layout = centered_layout;
 8239                    workspace
 8240                })
 8241            }
 8242        })?;
 8243
 8244        notify_if_database_failed(window, cx);
 8245
 8246        // Restore items from the serialized workspace
 8247        window
 8248            .update(cx, |_workspace, window, cx| {
 8249                open_items(Some(serialized_workspace), vec![], window, cx)
 8250            })?
 8251            .await?;
 8252
 8253        window.update(cx, |workspace, window, cx| {
 8254            window.activate_window();
 8255            workspace.serialize_workspace(window, cx);
 8256        })?;
 8257
 8258        Ok(window)
 8259    })
 8260}
 8261
 8262#[allow(clippy::type_complexity)]
 8263pub fn open_paths(
 8264    abs_paths: &[PathBuf],
 8265    app_state: Arc<AppState>,
 8266    open_options: OpenOptions,
 8267    cx: &mut App,
 8268) -> Task<
 8269    anyhow::Result<(
 8270        WindowHandle<Workspace>,
 8271        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8272    )>,
 8273> {
 8274    let abs_paths = abs_paths.to_vec();
 8275    let mut existing = None;
 8276    let mut best_match = None;
 8277    let mut open_visible = OpenVisible::All;
 8278    #[cfg(target_os = "windows")]
 8279    let wsl_path = abs_paths
 8280        .iter()
 8281        .find_map(|p| util::paths::WslPath::from_path(p));
 8282
 8283    cx.spawn(async move |cx| {
 8284        if open_options.open_new_workspace != Some(true) {
 8285            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8286            let all_metadatas = futures::future::join_all(all_paths)
 8287                .await
 8288                .into_iter()
 8289                .filter_map(|result| result.ok().flatten())
 8290                .collect::<Vec<_>>();
 8291
 8292            cx.update(|cx| {
 8293                for window in local_workspace_windows(cx) {
 8294                    if let Ok(workspace) = window.read(cx) {
 8295                        let m = workspace.project.read(cx).visibility_for_paths(
 8296                            &abs_paths,
 8297                            &all_metadatas,
 8298                            open_options.open_new_workspace == None,
 8299                            cx,
 8300                        );
 8301                        if m > best_match {
 8302                            existing = Some(window);
 8303                            best_match = m;
 8304                        } else if best_match.is_none()
 8305                            && open_options.open_new_workspace == Some(false)
 8306                        {
 8307                            existing = Some(window)
 8308                        }
 8309                    }
 8310                }
 8311            });
 8312
 8313            if open_options.open_new_workspace.is_none()
 8314                && (existing.is_none() || open_options.prefer_focused_window)
 8315                && all_metadatas.iter().all(|file| !file.is_dir)
 8316            {
 8317                cx.update(|cx| {
 8318                    if let Some(window) = cx
 8319                        .active_window()
 8320                        .and_then(|window| window.downcast::<Workspace>())
 8321                        && let Ok(workspace) = window.read(cx)
 8322                    {
 8323                        let project = workspace.project().read(cx);
 8324                        if project.is_local() && !project.is_via_collab() {
 8325                            existing = Some(window);
 8326                            open_visible = OpenVisible::None;
 8327                            return;
 8328                        }
 8329                    }
 8330                    for window in local_workspace_windows(cx) {
 8331                        if let Ok(workspace) = window.read(cx) {
 8332                            let project = workspace.project().read(cx);
 8333                            if project.is_via_collab() {
 8334                                continue;
 8335                            }
 8336                            existing = Some(window);
 8337                            open_visible = OpenVisible::None;
 8338                            break;
 8339                        }
 8340                    }
 8341                });
 8342            }
 8343        }
 8344
 8345        let result = if let Some(existing) = existing {
 8346            let open_task = existing
 8347                .update(cx, |workspace, window, cx| {
 8348                    window.activate_window();
 8349                    workspace.open_paths(
 8350                        abs_paths,
 8351                        OpenOptions {
 8352                            visible: Some(open_visible),
 8353                            ..Default::default()
 8354                        },
 8355                        None,
 8356                        window,
 8357                        cx,
 8358                    )
 8359                })?
 8360                .await;
 8361
 8362            _ = existing.update(cx, |workspace, _, cx| {
 8363                for item in open_task.iter().flatten() {
 8364                    if let Err(e) = item {
 8365                        workspace.show_error(&e, cx);
 8366                    }
 8367                }
 8368            });
 8369
 8370            Ok((existing, open_task))
 8371        } else {
 8372            cx.update(move |cx| {
 8373                Workspace::new_local(
 8374                    abs_paths,
 8375                    app_state.clone(),
 8376                    open_options.replace_window,
 8377                    open_options.env,
 8378                    None,
 8379                    cx,
 8380                )
 8381            })
 8382            .await
 8383        };
 8384
 8385        #[cfg(target_os = "windows")]
 8386        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8387            && let Ok((workspace, _)) = &result
 8388        {
 8389            workspace
 8390                .update(cx, move |workspace, _window, cx| {
 8391                    struct OpenInWsl;
 8392                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8393                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8394                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8395                        cx.new(move |cx| {
 8396                            MessageNotification::new(msg, cx)
 8397                                .primary_message("Open in WSL")
 8398                                .primary_icon(IconName::FolderOpen)
 8399                                .primary_on_click(move |window, cx| {
 8400                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8401                                            distro: remote::WslConnectionOptions {
 8402                                                    distro_name: distro.clone(),
 8403                                                user: None,
 8404                                            },
 8405                                            paths: vec![path.clone().into()],
 8406                                        }), cx)
 8407                                })
 8408                        })
 8409                    });
 8410                })
 8411                .unwrap();
 8412        };
 8413        result
 8414    })
 8415}
 8416
 8417pub fn open_new(
 8418    open_options: OpenOptions,
 8419    app_state: Arc<AppState>,
 8420    cx: &mut App,
 8421    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8422) -> Task<anyhow::Result<()>> {
 8423    let task = Workspace::new_local(
 8424        Vec::new(),
 8425        app_state,
 8426        open_options.replace_window,
 8427        open_options.env,
 8428        Some(Box::new(init)),
 8429        cx,
 8430    );
 8431    cx.spawn(async move |_cx| {
 8432        let (_workspace, _opened_paths) = task.await?;
 8433        // Init callback is called synchronously during workspace creation
 8434        Ok(())
 8435    })
 8436}
 8437
 8438pub fn create_and_open_local_file(
 8439    path: &'static Path,
 8440    window: &mut Window,
 8441    cx: &mut Context<Workspace>,
 8442    default_content: impl 'static + Send + FnOnce() -> Rope,
 8443) -> Task<Result<Box<dyn ItemHandle>>> {
 8444    cx.spawn_in(window, async move |workspace, cx| {
 8445        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8446        if !fs.is_file(path).await {
 8447            fs.create_file(path, Default::default()).await?;
 8448            fs.save(path, &default_content(), Default::default())
 8449                .await?;
 8450        }
 8451
 8452        workspace
 8453            .update_in(cx, |workspace, window, cx| {
 8454                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 8455                    let path = workspace
 8456                        .project
 8457                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 8458                    cx.spawn_in(window, async move |workspace, cx| {
 8459                        let path = path.await?;
 8460                        let mut items = workspace
 8461                            .update_in(cx, |workspace, window, cx| {
 8462                                workspace.open_paths(
 8463                                    vec![path.to_path_buf()],
 8464                                    OpenOptions {
 8465                                        visible: Some(OpenVisible::None),
 8466                                        ..Default::default()
 8467                                    },
 8468                                    None,
 8469                                    window,
 8470                                    cx,
 8471                                )
 8472                            })?
 8473                            .await;
 8474                        let item = items.pop().flatten();
 8475                        item.with_context(|| format!("path {path:?} is not a file"))?
 8476                    })
 8477                })
 8478            })?
 8479            .await?
 8480            .await
 8481    })
 8482}
 8483
 8484pub fn open_remote_project_with_new_connection(
 8485    window: WindowHandle<Workspace>,
 8486    remote_connection: Arc<dyn RemoteConnection>,
 8487    cancel_rx: oneshot::Receiver<()>,
 8488    delegate: Arc<dyn RemoteClientDelegate>,
 8489    app_state: Arc<AppState>,
 8490    paths: Vec<PathBuf>,
 8491    cx: &mut App,
 8492) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8493    cx.spawn(async move |cx| {
 8494        let (workspace_id, serialized_workspace) =
 8495            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8496                .await?;
 8497
 8498        let session = match cx
 8499            .update(|cx| {
 8500                remote::RemoteClient::new(
 8501                    ConnectionIdentifier::Workspace(workspace_id.0),
 8502                    remote_connection,
 8503                    cancel_rx,
 8504                    delegate,
 8505                    cx,
 8506                )
 8507            })
 8508            .await?
 8509        {
 8510            Some(result) => result,
 8511            None => return Ok(Vec::new()),
 8512        };
 8513
 8514        let project = cx.update(|cx| {
 8515            project::Project::remote(
 8516                session,
 8517                app_state.client.clone(),
 8518                app_state.node_runtime.clone(),
 8519                app_state.user_store.clone(),
 8520                app_state.languages.clone(),
 8521                app_state.fs.clone(),
 8522                true,
 8523                cx,
 8524            )
 8525        });
 8526
 8527        open_remote_project_inner(
 8528            project,
 8529            paths,
 8530            workspace_id,
 8531            serialized_workspace,
 8532            app_state,
 8533            window,
 8534            cx,
 8535        )
 8536        .await
 8537    })
 8538}
 8539
 8540pub fn open_remote_project_with_existing_connection(
 8541    connection_options: RemoteConnectionOptions,
 8542    project: Entity<Project>,
 8543    paths: Vec<PathBuf>,
 8544    app_state: Arc<AppState>,
 8545    window: WindowHandle<Workspace>,
 8546    cx: &mut AsyncApp,
 8547) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8548    cx.spawn(async move |cx| {
 8549        let (workspace_id, serialized_workspace) =
 8550            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8551
 8552        open_remote_project_inner(
 8553            project,
 8554            paths,
 8555            workspace_id,
 8556            serialized_workspace,
 8557            app_state,
 8558            window,
 8559            cx,
 8560        )
 8561        .await
 8562    })
 8563}
 8564
 8565async fn open_remote_project_inner(
 8566    project: Entity<Project>,
 8567    paths: Vec<PathBuf>,
 8568    workspace_id: WorkspaceId,
 8569    serialized_workspace: Option<SerializedWorkspace>,
 8570    app_state: Arc<AppState>,
 8571    window: WindowHandle<Workspace>,
 8572    cx: &mut AsyncApp,
 8573) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8574    let toolchains = DB.toolchains(workspace_id).await?;
 8575    for (toolchain, worktree_path, path) in toolchains {
 8576        project
 8577            .update(cx, |this, cx| {
 8578                let Some(worktree_id) =
 8579                    this.find_worktree(&worktree_path, cx)
 8580                        .and_then(|(worktree, rel_path)| {
 8581                            if rel_path.is_empty() {
 8582                                Some(worktree.read(cx).id())
 8583                            } else {
 8584                                None
 8585                            }
 8586                        })
 8587                else {
 8588                    return Task::ready(None);
 8589                };
 8590
 8591                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8592            })
 8593            .await;
 8594    }
 8595    let mut project_paths_to_open = vec![];
 8596    let mut project_path_errors = vec![];
 8597
 8598    for path in paths {
 8599        let result = cx
 8600            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 8601            .await;
 8602        match result {
 8603            Ok((_, project_path)) => {
 8604                project_paths_to_open.push((path.clone(), Some(project_path)));
 8605            }
 8606            Err(error) => {
 8607                project_path_errors.push(error);
 8608            }
 8609        };
 8610    }
 8611
 8612    if project_paths_to_open.is_empty() {
 8613        return Err(project_path_errors.pop().context("no paths given")?);
 8614    }
 8615
 8616    if let Some(detach_session_task) = window
 8617        .update(cx, |_workspace, window, cx| {
 8618            cx.spawn_in(window, async move |this, cx| {
 8619                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8620            })
 8621        })
 8622        .ok()
 8623    {
 8624        detach_session_task.await.ok();
 8625    }
 8626
 8627    cx.update_window(window.into(), |_, window, cx| {
 8628        window.replace_root(cx, |window, cx| {
 8629            telemetry::event!("SSH Project Opened");
 8630
 8631            let mut workspace =
 8632                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8633            workspace.update_history(cx);
 8634
 8635            if let Some(ref serialized) = serialized_workspace {
 8636                workspace.centered_layout = serialized.centered_layout;
 8637            }
 8638
 8639            workspace
 8640        });
 8641    })?;
 8642
 8643    let items = window
 8644        .update(cx, |_, window, cx| {
 8645            window.activate_window();
 8646            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8647        })?
 8648        .await?;
 8649
 8650    window.update(cx, |workspace, _, cx| {
 8651        for error in project_path_errors {
 8652            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8653                if let Some(path) = error.error_tag("path") {
 8654                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8655                }
 8656            } else {
 8657                workspace.show_error(&error, cx)
 8658            }
 8659        }
 8660    })?;
 8661
 8662    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8663}
 8664
 8665fn deserialize_remote_project(
 8666    connection_options: RemoteConnectionOptions,
 8667    paths: Vec<PathBuf>,
 8668    cx: &AsyncApp,
 8669) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8670    cx.background_spawn(async move {
 8671        let remote_connection_id = persistence::DB
 8672            .get_or_create_remote_connection(connection_options)
 8673            .await?;
 8674
 8675        let serialized_workspace =
 8676            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8677
 8678        let workspace_id = if let Some(workspace_id) =
 8679            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8680        {
 8681            workspace_id
 8682        } else {
 8683            persistence::DB.next_id().await?
 8684        };
 8685
 8686        Ok((workspace_id, serialized_workspace))
 8687    })
 8688}
 8689
 8690pub fn join_in_room_project(
 8691    project_id: u64,
 8692    follow_user_id: u64,
 8693    app_state: Arc<AppState>,
 8694    cx: &mut App,
 8695) -> Task<Result<()>> {
 8696    let windows = cx.windows();
 8697    cx.spawn(async move |cx| {
 8698        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8699            window_handle
 8700                .downcast::<Workspace>()
 8701                .and_then(|window_handle| {
 8702                    window_handle
 8703                        .update(cx, |workspace, _window, cx| {
 8704                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8705                                Some(window_handle)
 8706                            } else {
 8707                                None
 8708                            }
 8709                        })
 8710                        .unwrap_or(None)
 8711                })
 8712        });
 8713
 8714        let workspace = if let Some(existing_workspace) = existing_workspace {
 8715            existing_workspace
 8716        } else {
 8717            let active_call = cx.update(|cx| ActiveCall::global(cx));
 8718            let room = active_call
 8719                .read_with(cx, |call, _| call.room().cloned())
 8720                .context("not in a call")?;
 8721            let project = room
 8722                .update(cx, |room, cx| {
 8723                    room.join_project(
 8724                        project_id,
 8725                        app_state.languages.clone(),
 8726                        app_state.fs.clone(),
 8727                        cx,
 8728                    )
 8729                })
 8730                .await?;
 8731
 8732            let window_bounds_override = window_bounds_env_override();
 8733            cx.update(|cx| {
 8734                let mut options = (app_state.build_window_options)(None, cx);
 8735                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8736                cx.open_window(options, |window, cx| {
 8737                    cx.new(|cx| {
 8738                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8739                    })
 8740                })
 8741            })?
 8742        };
 8743
 8744        workspace.update(cx, |workspace, window, cx| {
 8745            cx.activate(true);
 8746            window.activate_window();
 8747
 8748            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8749                let follow_peer_id = room
 8750                    .read(cx)
 8751                    .remote_participants()
 8752                    .iter()
 8753                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8754                    .map(|(_, p)| p.peer_id)
 8755                    .or_else(|| {
 8756                        // If we couldn't follow the given user, follow the host instead.
 8757                        let collaborator = workspace
 8758                            .project()
 8759                            .read(cx)
 8760                            .collaborators()
 8761                            .values()
 8762                            .find(|collaborator| collaborator.is_host)?;
 8763                        Some(collaborator.peer_id)
 8764                    });
 8765
 8766                if let Some(follow_peer_id) = follow_peer_id {
 8767                    workspace.follow(follow_peer_id, window, cx);
 8768                }
 8769            }
 8770        })?;
 8771
 8772        anyhow::Ok(())
 8773    })
 8774}
 8775
 8776pub fn reload(cx: &mut App) {
 8777    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8778    let mut workspace_windows = cx
 8779        .windows()
 8780        .into_iter()
 8781        .filter_map(|window| window.downcast::<Workspace>())
 8782        .collect::<Vec<_>>();
 8783
 8784    // If multiple windows have unsaved changes, and need a save prompt,
 8785    // prompt in the active window before switching to a different window.
 8786    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8787
 8788    let mut prompt = None;
 8789    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8790        prompt = window
 8791            .update(cx, |_, window, cx| {
 8792                window.prompt(
 8793                    PromptLevel::Info,
 8794                    "Are you sure you want to restart?",
 8795                    None,
 8796                    &["Restart", "Cancel"],
 8797                    cx,
 8798                )
 8799            })
 8800            .ok();
 8801    }
 8802
 8803    cx.spawn(async move |cx| {
 8804        if let Some(prompt) = prompt {
 8805            let answer = prompt.await?;
 8806            if answer != 0 {
 8807                return anyhow::Ok(());
 8808            }
 8809        }
 8810
 8811        // If the user cancels any save prompt, then keep the app open.
 8812        for window in workspace_windows {
 8813            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8814                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8815            }) && !should_close.await?
 8816            {
 8817                return anyhow::Ok(());
 8818            }
 8819        }
 8820        cx.update(|cx| cx.restart());
 8821        anyhow::Ok(())
 8822    })
 8823    .detach_and_log_err(cx);
 8824}
 8825
 8826fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8827    let mut parts = value.split(',');
 8828    let x: usize = parts.next()?.parse().ok()?;
 8829    let y: usize = parts.next()?.parse().ok()?;
 8830    Some(point(px(x as f32), px(y as f32)))
 8831}
 8832
 8833fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8834    let mut parts = value.split(',');
 8835    let width: usize = parts.next()?.parse().ok()?;
 8836    let height: usize = parts.next()?.parse().ok()?;
 8837    Some(size(px(width as f32), px(height as f32)))
 8838}
 8839
 8840/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8841pub fn client_side_decorations(
 8842    element: impl IntoElement,
 8843    window: &mut Window,
 8844    cx: &mut App,
 8845) -> Stateful<Div> {
 8846    const BORDER_SIZE: Pixels = px(1.0);
 8847    let decorations = window.window_decorations();
 8848
 8849    match decorations {
 8850        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8851        Decorations::Server => window.set_client_inset(px(0.0)),
 8852    }
 8853
 8854    struct GlobalResizeEdge(ResizeEdge);
 8855    impl Global for GlobalResizeEdge {}
 8856
 8857    div()
 8858        .id("window-backdrop")
 8859        .bg(transparent_black())
 8860        .map(|div| match decorations {
 8861            Decorations::Server => div,
 8862            Decorations::Client { tiling, .. } => div
 8863                .when(!(tiling.top || tiling.right), |div| {
 8864                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8865                })
 8866                .when(!(tiling.top || tiling.left), |div| {
 8867                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8868                })
 8869                .when(!(tiling.bottom || tiling.right), |div| {
 8870                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8871                })
 8872                .when(!(tiling.bottom || tiling.left), |div| {
 8873                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8874                })
 8875                .when(!tiling.top, |div| {
 8876                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8877                })
 8878                .when(!tiling.bottom, |div| {
 8879                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8880                })
 8881                .when(!tiling.left, |div| {
 8882                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8883                })
 8884                .when(!tiling.right, |div| {
 8885                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8886                })
 8887                .on_mouse_move(move |e, window, cx| {
 8888                    let size = window.window_bounds().get_bounds().size;
 8889                    let pos = e.position;
 8890
 8891                    let new_edge =
 8892                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8893
 8894                    let edge = cx.try_global::<GlobalResizeEdge>();
 8895                    if new_edge != edge.map(|edge| edge.0) {
 8896                        window
 8897                            .window_handle()
 8898                            .update(cx, |workspace, _, cx| {
 8899                                cx.notify(workspace.entity_id());
 8900                            })
 8901                            .ok();
 8902                    }
 8903                })
 8904                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8905                    let size = window.window_bounds().get_bounds().size;
 8906                    let pos = e.position;
 8907
 8908                    let edge = match resize_edge(
 8909                        pos,
 8910                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8911                        size,
 8912                        tiling,
 8913                    ) {
 8914                        Some(value) => value,
 8915                        None => return,
 8916                    };
 8917
 8918                    window.start_window_resize(edge);
 8919                }),
 8920        })
 8921        .size_full()
 8922        .child(
 8923            div()
 8924                .cursor(CursorStyle::Arrow)
 8925                .map(|div| match decorations {
 8926                    Decorations::Server => div,
 8927                    Decorations::Client { tiling } => div
 8928                        .border_color(cx.theme().colors().border)
 8929                        .when(!(tiling.top || tiling.right), |div| {
 8930                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8931                        })
 8932                        .when(!(tiling.top || tiling.left), |div| {
 8933                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8934                        })
 8935                        .when(!(tiling.bottom || tiling.right), |div| {
 8936                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8937                        })
 8938                        .when(!(tiling.bottom || tiling.left), |div| {
 8939                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8940                        })
 8941                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8942                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8943                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8944                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8945                        .when(!tiling.is_tiled(), |div| {
 8946                            div.shadow(vec![gpui::BoxShadow {
 8947                                color: Hsla {
 8948                                    h: 0.,
 8949                                    s: 0.,
 8950                                    l: 0.,
 8951                                    a: 0.4,
 8952                                },
 8953                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8954                                spread_radius: px(0.),
 8955                                offset: point(px(0.0), px(0.0)),
 8956                            }])
 8957                        }),
 8958                })
 8959                .on_mouse_move(|_e, _, cx| {
 8960                    cx.stop_propagation();
 8961                })
 8962                .size_full()
 8963                .child(element),
 8964        )
 8965        .map(|div| match decorations {
 8966            Decorations::Server => div,
 8967            Decorations::Client { tiling, .. } => div.child(
 8968                canvas(
 8969                    |_bounds, window, _| {
 8970                        window.insert_hitbox(
 8971                            Bounds::new(
 8972                                point(px(0.0), px(0.0)),
 8973                                window.window_bounds().get_bounds().size,
 8974                            ),
 8975                            HitboxBehavior::Normal,
 8976                        )
 8977                    },
 8978                    move |_bounds, hitbox, window, cx| {
 8979                        let mouse = window.mouse_position();
 8980                        let size = window.window_bounds().get_bounds().size;
 8981                        let Some(edge) =
 8982                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8983                        else {
 8984                            return;
 8985                        };
 8986                        cx.set_global(GlobalResizeEdge(edge));
 8987                        window.set_cursor_style(
 8988                            match edge {
 8989                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8990                                ResizeEdge::Left | ResizeEdge::Right => {
 8991                                    CursorStyle::ResizeLeftRight
 8992                                }
 8993                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8994                                    CursorStyle::ResizeUpLeftDownRight
 8995                                }
 8996                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8997                                    CursorStyle::ResizeUpRightDownLeft
 8998                                }
 8999                            },
 9000                            &hitbox,
 9001                        );
 9002                    },
 9003                )
 9004                .size_full()
 9005                .absolute(),
 9006            ),
 9007        })
 9008}
 9009
 9010fn resize_edge(
 9011    pos: Point<Pixels>,
 9012    shadow_size: Pixels,
 9013    window_size: Size<Pixels>,
 9014    tiling: Tiling,
 9015) -> Option<ResizeEdge> {
 9016    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 9017    if bounds.contains(&pos) {
 9018        return None;
 9019    }
 9020
 9021    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 9022    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 9023    if !tiling.top && top_left_bounds.contains(&pos) {
 9024        return Some(ResizeEdge::TopLeft);
 9025    }
 9026
 9027    let top_right_bounds = Bounds::new(
 9028        Point::new(window_size.width - corner_size.width, px(0.)),
 9029        corner_size,
 9030    );
 9031    if !tiling.top && top_right_bounds.contains(&pos) {
 9032        return Some(ResizeEdge::TopRight);
 9033    }
 9034
 9035    let bottom_left_bounds = Bounds::new(
 9036        Point::new(px(0.), window_size.height - corner_size.height),
 9037        corner_size,
 9038    );
 9039    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 9040        return Some(ResizeEdge::BottomLeft);
 9041    }
 9042
 9043    let bottom_right_bounds = Bounds::new(
 9044        Point::new(
 9045            window_size.width - corner_size.width,
 9046            window_size.height - corner_size.height,
 9047        ),
 9048        corner_size,
 9049    );
 9050    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 9051        return Some(ResizeEdge::BottomRight);
 9052    }
 9053
 9054    if !tiling.top && pos.y < shadow_size {
 9055        Some(ResizeEdge::Top)
 9056    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 9057        Some(ResizeEdge::Bottom)
 9058    } else if !tiling.left && pos.x < shadow_size {
 9059        Some(ResizeEdge::Left)
 9060    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 9061        Some(ResizeEdge::Right)
 9062    } else {
 9063        None
 9064    }
 9065}
 9066
 9067fn join_pane_into_active(
 9068    active_pane: &Entity<Pane>,
 9069    pane: &Entity<Pane>,
 9070    window: &mut Window,
 9071    cx: &mut App,
 9072) {
 9073    if pane == active_pane {
 9074    } else if pane.read(cx).items_len() == 0 {
 9075        pane.update(cx, |_, cx| {
 9076            cx.emit(pane::Event::Remove {
 9077                focus_on_pane: None,
 9078            });
 9079        })
 9080    } else {
 9081        move_all_items(pane, active_pane, window, cx);
 9082    }
 9083}
 9084
 9085fn move_all_items(
 9086    from_pane: &Entity<Pane>,
 9087    to_pane: &Entity<Pane>,
 9088    window: &mut Window,
 9089    cx: &mut App,
 9090) {
 9091    let destination_is_different = from_pane != to_pane;
 9092    let mut moved_items = 0;
 9093    for (item_ix, item_handle) in from_pane
 9094        .read(cx)
 9095        .items()
 9096        .enumerate()
 9097        .map(|(ix, item)| (ix, item.clone()))
 9098        .collect::<Vec<_>>()
 9099    {
 9100        let ix = item_ix - moved_items;
 9101        if destination_is_different {
 9102            // Close item from previous pane
 9103            from_pane.update(cx, |source, cx| {
 9104                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 9105            });
 9106            moved_items += 1;
 9107        }
 9108
 9109        // This automatically removes duplicate items in the pane
 9110        to_pane.update(cx, |destination, cx| {
 9111            destination.add_item(item_handle, true, true, None, window, cx);
 9112            window.focus(&destination.focus_handle(cx), cx)
 9113        });
 9114    }
 9115}
 9116
 9117pub fn move_item(
 9118    source: &Entity<Pane>,
 9119    destination: &Entity<Pane>,
 9120    item_id_to_move: EntityId,
 9121    destination_index: usize,
 9122    activate: bool,
 9123    window: &mut Window,
 9124    cx: &mut App,
 9125) {
 9126    let Some((item_ix, item_handle)) = source
 9127        .read(cx)
 9128        .items()
 9129        .enumerate()
 9130        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 9131        .map(|(ix, item)| (ix, item.clone()))
 9132    else {
 9133        // Tab was closed during drag
 9134        return;
 9135    };
 9136
 9137    if source != destination {
 9138        // Close item from previous pane
 9139        source.update(cx, |source, cx| {
 9140            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9141        });
 9142    }
 9143
 9144    // This automatically removes duplicate items in the pane
 9145    destination.update(cx, |destination, cx| {
 9146        destination.add_item_inner(
 9147            item_handle,
 9148            activate,
 9149            activate,
 9150            activate,
 9151            Some(destination_index),
 9152            window,
 9153            cx,
 9154        );
 9155        if activate {
 9156            window.focus(&destination.focus_handle(cx), cx)
 9157        }
 9158    });
 9159}
 9160
 9161pub fn move_active_item(
 9162    source: &Entity<Pane>,
 9163    destination: &Entity<Pane>,
 9164    focus_destination: bool,
 9165    close_if_empty: bool,
 9166    window: &mut Window,
 9167    cx: &mut App,
 9168) {
 9169    if source == destination {
 9170        return;
 9171    }
 9172    let Some(active_item) = source.read(cx).active_item() else {
 9173        return;
 9174    };
 9175    source.update(cx, |source_pane, cx| {
 9176        let item_id = active_item.item_id();
 9177        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9178        destination.update(cx, |target_pane, cx| {
 9179            target_pane.add_item(
 9180                active_item,
 9181                focus_destination,
 9182                focus_destination,
 9183                Some(target_pane.items_len()),
 9184                window,
 9185                cx,
 9186            );
 9187        });
 9188    });
 9189}
 9190
 9191pub fn clone_active_item(
 9192    workspace_id: Option<WorkspaceId>,
 9193    source: &Entity<Pane>,
 9194    destination: &Entity<Pane>,
 9195    focus_destination: bool,
 9196    window: &mut Window,
 9197    cx: &mut App,
 9198) {
 9199    if source == destination {
 9200        return;
 9201    }
 9202    let Some(active_item) = source.read(cx).active_item() else {
 9203        return;
 9204    };
 9205    if !active_item.can_split(cx) {
 9206        return;
 9207    }
 9208    let destination = destination.downgrade();
 9209    let task = active_item.clone_on_split(workspace_id, window, cx);
 9210    window
 9211        .spawn(cx, async move |cx| {
 9212            let Some(clone) = task.await else {
 9213                return;
 9214            };
 9215            destination
 9216                .update_in(cx, |target_pane, window, cx| {
 9217                    target_pane.add_item(
 9218                        clone,
 9219                        focus_destination,
 9220                        focus_destination,
 9221                        Some(target_pane.items_len()),
 9222                        window,
 9223                        cx,
 9224                    );
 9225                })
 9226                .log_err();
 9227        })
 9228        .detach();
 9229}
 9230
 9231#[derive(Debug)]
 9232pub struct WorkspacePosition {
 9233    pub window_bounds: Option<WindowBounds>,
 9234    pub display: Option<Uuid>,
 9235    pub centered_layout: bool,
 9236}
 9237
 9238pub fn remote_workspace_position_from_db(
 9239    connection_options: RemoteConnectionOptions,
 9240    paths_to_open: &[PathBuf],
 9241    cx: &App,
 9242) -> Task<Result<WorkspacePosition>> {
 9243    let paths = paths_to_open.to_vec();
 9244
 9245    cx.background_spawn(async move {
 9246        let remote_connection_id = persistence::DB
 9247            .get_or_create_remote_connection(connection_options)
 9248            .await
 9249            .context("fetching serialized ssh project")?;
 9250        let serialized_workspace =
 9251            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9252
 9253        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9254            (Some(WindowBounds::Windowed(bounds)), None)
 9255        } else {
 9256            let restorable_bounds = serialized_workspace
 9257                .as_ref()
 9258                .and_then(|workspace| {
 9259                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9260                })
 9261                .or_else(|| persistence::read_default_window_bounds());
 9262
 9263            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9264                (Some(serialized_bounds), Some(serialized_display))
 9265            } else {
 9266                (None, None)
 9267            }
 9268        };
 9269
 9270        let centered_layout = serialized_workspace
 9271            .as_ref()
 9272            .map(|w| w.centered_layout)
 9273            .unwrap_or(false);
 9274
 9275        Ok(WorkspacePosition {
 9276            window_bounds,
 9277            display,
 9278            centered_layout,
 9279        })
 9280    })
 9281}
 9282
 9283pub fn with_active_or_new_workspace(
 9284    cx: &mut App,
 9285    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9286) {
 9287    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 9288        Some(workspace) => {
 9289            cx.defer(move |cx| {
 9290                workspace
 9291                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 9292                    .log_err();
 9293            });
 9294        }
 9295        None => {
 9296            let app_state = AppState::global(cx);
 9297            if let Some(app_state) = app_state.upgrade() {
 9298                open_new(
 9299                    OpenOptions::default(),
 9300                    app_state,
 9301                    cx,
 9302                    move |workspace, window, cx| f(workspace, window, cx),
 9303                )
 9304                .detach_and_log_err(cx);
 9305            }
 9306        }
 9307    }
 9308}
 9309
 9310#[cfg(test)]
 9311mod tests {
 9312    use std::{cell::RefCell, rc::Rc};
 9313
 9314    use super::*;
 9315    use crate::{
 9316        dock::{PanelEvent, test::TestPanel},
 9317        item::{
 9318            ItemBufferKind, ItemEvent,
 9319            test::{TestItem, TestProjectItem},
 9320        },
 9321    };
 9322    use fs::FakeFs;
 9323    use gpui::{
 9324        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9325        UpdateGlobal, VisualTestContext, px,
 9326    };
 9327    use project::{Project, ProjectEntryId};
 9328    use serde_json::json;
 9329    use settings::SettingsStore;
 9330    use util::rel_path::rel_path;
 9331
 9332    #[gpui::test]
 9333    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9334        init_test(cx);
 9335
 9336        let fs = FakeFs::new(cx.executor());
 9337        let project = Project::test(fs, [], cx).await;
 9338        let (workspace, cx) =
 9339            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9340
 9341        // Adding an item with no ambiguity renders the tab without detail.
 9342        let item1 = cx.new(|cx| {
 9343            let mut item = TestItem::new(cx);
 9344            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9345            item
 9346        });
 9347        workspace.update_in(cx, |workspace, window, cx| {
 9348            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9349        });
 9350        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9351
 9352        // Adding an item that creates ambiguity increases the level of detail on
 9353        // both tabs.
 9354        let item2 = cx.new_window_entity(|_window, cx| {
 9355            let mut item = TestItem::new(cx);
 9356            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9357            item
 9358        });
 9359        workspace.update_in(cx, |workspace, window, cx| {
 9360            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9361        });
 9362        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9363        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9364
 9365        // Adding an item that creates ambiguity increases the level of detail only
 9366        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9367        // we stop at the highest detail available.
 9368        let item3 = cx.new(|cx| {
 9369            let mut item = TestItem::new(cx);
 9370            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9371            item
 9372        });
 9373        workspace.update_in(cx, |workspace, window, cx| {
 9374            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9375        });
 9376        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9377        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9378        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9379    }
 9380
 9381    #[gpui::test]
 9382    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9383        init_test(cx);
 9384
 9385        let fs = FakeFs::new(cx.executor());
 9386        fs.insert_tree(
 9387            "/root1",
 9388            json!({
 9389                "one.txt": "",
 9390                "two.txt": "",
 9391            }),
 9392        )
 9393        .await;
 9394        fs.insert_tree(
 9395            "/root2",
 9396            json!({
 9397                "three.txt": "",
 9398            }),
 9399        )
 9400        .await;
 9401
 9402        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9403        let (workspace, cx) =
 9404            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9405        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9406        let worktree_id = project.update(cx, |project, cx| {
 9407            project.worktrees(cx).next().unwrap().read(cx).id()
 9408        });
 9409
 9410        let item1 = cx.new(|cx| {
 9411            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9412        });
 9413        let item2 = cx.new(|cx| {
 9414            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9415        });
 9416
 9417        // Add an item to an empty pane
 9418        workspace.update_in(cx, |workspace, window, cx| {
 9419            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9420        });
 9421        project.update(cx, |project, cx| {
 9422            assert_eq!(
 9423                project.active_entry(),
 9424                project
 9425                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9426                    .map(|e| e.id)
 9427            );
 9428        });
 9429        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9430
 9431        // Add a second item to a non-empty pane
 9432        workspace.update_in(cx, |workspace, window, cx| {
 9433            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9434        });
 9435        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9436        project.update(cx, |project, cx| {
 9437            assert_eq!(
 9438                project.active_entry(),
 9439                project
 9440                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9441                    .map(|e| e.id)
 9442            );
 9443        });
 9444
 9445        // Close the active item
 9446        pane.update_in(cx, |pane, window, cx| {
 9447            pane.close_active_item(&Default::default(), window, cx)
 9448        })
 9449        .await
 9450        .unwrap();
 9451        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9452        project.update(cx, |project, cx| {
 9453            assert_eq!(
 9454                project.active_entry(),
 9455                project
 9456                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9457                    .map(|e| e.id)
 9458            );
 9459        });
 9460
 9461        // Add a project folder
 9462        project
 9463            .update(cx, |project, cx| {
 9464                project.find_or_create_worktree("root2", true, cx)
 9465            })
 9466            .await
 9467            .unwrap();
 9468        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9469
 9470        // Remove a project folder
 9471        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9472        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9473    }
 9474
 9475    #[gpui::test]
 9476    async fn test_close_window(cx: &mut TestAppContext) {
 9477        init_test(cx);
 9478
 9479        let fs = FakeFs::new(cx.executor());
 9480        fs.insert_tree("/root", json!({ "one": "" })).await;
 9481
 9482        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9483        let (workspace, cx) =
 9484            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9485
 9486        // When there are no dirty items, there's nothing to do.
 9487        let item1 = cx.new(TestItem::new);
 9488        workspace.update_in(cx, |w, window, cx| {
 9489            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9490        });
 9491        let task = workspace.update_in(cx, |w, window, cx| {
 9492            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9493        });
 9494        assert!(task.await.unwrap());
 9495
 9496        // When there are dirty untitled items, prompt to save each one. If the user
 9497        // cancels any prompt, then abort.
 9498        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9499        let item3 = cx.new(|cx| {
 9500            TestItem::new(cx)
 9501                .with_dirty(true)
 9502                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9503        });
 9504        workspace.update_in(cx, |w, window, cx| {
 9505            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9506            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9507        });
 9508        let task = workspace.update_in(cx, |w, window, cx| {
 9509            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9510        });
 9511        cx.executor().run_until_parked();
 9512        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9513        cx.executor().run_until_parked();
 9514        assert!(!cx.has_pending_prompt());
 9515        assert!(!task.await.unwrap());
 9516    }
 9517
 9518    #[gpui::test]
 9519    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9520        init_test(cx);
 9521
 9522        // Register TestItem as a serializable item
 9523        cx.update(|cx| {
 9524            register_serializable_item::<TestItem>(cx);
 9525        });
 9526
 9527        let fs = FakeFs::new(cx.executor());
 9528        fs.insert_tree("/root", json!({ "one": "" })).await;
 9529
 9530        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9531        let (workspace, cx) =
 9532            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9533
 9534        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9535        let item1 = cx.new(|cx| {
 9536            TestItem::new(cx)
 9537                .with_dirty(true)
 9538                .with_serialize(|| Some(Task::ready(Ok(()))))
 9539        });
 9540        let item2 = cx.new(|cx| {
 9541            TestItem::new(cx)
 9542                .with_dirty(true)
 9543                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9544                .with_serialize(|| Some(Task::ready(Ok(()))))
 9545        });
 9546        workspace.update_in(cx, |w, window, cx| {
 9547            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9548            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9549        });
 9550        let task = workspace.update_in(cx, |w, window, cx| {
 9551            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9552        });
 9553        assert!(task.await.unwrap());
 9554    }
 9555
 9556    #[gpui::test]
 9557    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9558        init_test(cx);
 9559
 9560        let fs = FakeFs::new(cx.executor());
 9561
 9562        let project = Project::test(fs, None, cx).await;
 9563        let (workspace, cx) =
 9564            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9565
 9566        let item1 = cx.new(|cx| {
 9567            TestItem::new(cx)
 9568                .with_dirty(true)
 9569                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9570        });
 9571        let item2 = cx.new(|cx| {
 9572            TestItem::new(cx)
 9573                .with_dirty(true)
 9574                .with_conflict(true)
 9575                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9576        });
 9577        let item3 = cx.new(|cx| {
 9578            TestItem::new(cx)
 9579                .with_dirty(true)
 9580                .with_conflict(true)
 9581                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9582        });
 9583        let item4 = cx.new(|cx| {
 9584            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9585                let project_item = TestProjectItem::new_untitled(cx);
 9586                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9587                project_item
 9588            }])
 9589        });
 9590        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9591            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9592            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9593            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9594            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9595            workspace.active_pane().clone()
 9596        });
 9597
 9598        let close_items = pane.update_in(cx, |pane, window, cx| {
 9599            pane.activate_item(1, true, true, window, cx);
 9600            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9601            let item1_id = item1.item_id();
 9602            let item3_id = item3.item_id();
 9603            let item4_id = item4.item_id();
 9604            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9605                [item1_id, item3_id, item4_id].contains(&id)
 9606            })
 9607        });
 9608        cx.executor().run_until_parked();
 9609
 9610        assert!(cx.has_pending_prompt());
 9611        cx.simulate_prompt_answer("Save all");
 9612
 9613        cx.executor().run_until_parked();
 9614
 9615        // Item 1 is saved. There's a prompt to save item 3.
 9616        pane.update(cx, |pane, cx| {
 9617            assert_eq!(item1.read(cx).save_count, 1);
 9618            assert_eq!(item1.read(cx).save_as_count, 0);
 9619            assert_eq!(item1.read(cx).reload_count, 0);
 9620            assert_eq!(pane.items_len(), 3);
 9621            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9622        });
 9623        assert!(cx.has_pending_prompt());
 9624
 9625        // Cancel saving item 3.
 9626        cx.simulate_prompt_answer("Discard");
 9627        cx.executor().run_until_parked();
 9628
 9629        // Item 3 is reloaded. There's a prompt to save item 4.
 9630        pane.update(cx, |pane, cx| {
 9631            assert_eq!(item3.read(cx).save_count, 0);
 9632            assert_eq!(item3.read(cx).save_as_count, 0);
 9633            assert_eq!(item3.read(cx).reload_count, 1);
 9634            assert_eq!(pane.items_len(), 2);
 9635            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9636        });
 9637
 9638        // There's a prompt for a path for item 4.
 9639        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9640        close_items.await.unwrap();
 9641
 9642        // The requested items are closed.
 9643        pane.update(cx, |pane, cx| {
 9644            assert_eq!(item4.read(cx).save_count, 0);
 9645            assert_eq!(item4.read(cx).save_as_count, 1);
 9646            assert_eq!(item4.read(cx).reload_count, 0);
 9647            assert_eq!(pane.items_len(), 1);
 9648            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9649        });
 9650    }
 9651
 9652    #[gpui::test]
 9653    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9654        init_test(cx);
 9655
 9656        let fs = FakeFs::new(cx.executor());
 9657        let project = Project::test(fs, [], cx).await;
 9658        let (workspace, cx) =
 9659            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9660
 9661        // Create several workspace items with single project entries, and two
 9662        // workspace items with multiple project entries.
 9663        let single_entry_items = (0..=4)
 9664            .map(|project_entry_id| {
 9665                cx.new(|cx| {
 9666                    TestItem::new(cx)
 9667                        .with_dirty(true)
 9668                        .with_project_items(&[dirty_project_item(
 9669                            project_entry_id,
 9670                            &format!("{project_entry_id}.txt"),
 9671                            cx,
 9672                        )])
 9673                })
 9674            })
 9675            .collect::<Vec<_>>();
 9676        let item_2_3 = cx.new(|cx| {
 9677            TestItem::new(cx)
 9678                .with_dirty(true)
 9679                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9680                .with_project_items(&[
 9681                    single_entry_items[2].read(cx).project_items[0].clone(),
 9682                    single_entry_items[3].read(cx).project_items[0].clone(),
 9683                ])
 9684        });
 9685        let item_3_4 = cx.new(|cx| {
 9686            TestItem::new(cx)
 9687                .with_dirty(true)
 9688                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9689                .with_project_items(&[
 9690                    single_entry_items[3].read(cx).project_items[0].clone(),
 9691                    single_entry_items[4].read(cx).project_items[0].clone(),
 9692                ])
 9693        });
 9694
 9695        // Create two panes that contain the following project entries:
 9696        //   left pane:
 9697        //     multi-entry items:   (2, 3)
 9698        //     single-entry items:  0, 2, 3, 4
 9699        //   right pane:
 9700        //     single-entry items:  4, 1
 9701        //     multi-entry items:   (3, 4)
 9702        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9703            let left_pane = workspace.active_pane().clone();
 9704            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9705            workspace.add_item_to_active_pane(
 9706                single_entry_items[0].boxed_clone(),
 9707                None,
 9708                true,
 9709                window,
 9710                cx,
 9711            );
 9712            workspace.add_item_to_active_pane(
 9713                single_entry_items[2].boxed_clone(),
 9714                None,
 9715                true,
 9716                window,
 9717                cx,
 9718            );
 9719            workspace.add_item_to_active_pane(
 9720                single_entry_items[3].boxed_clone(),
 9721                None,
 9722                true,
 9723                window,
 9724                cx,
 9725            );
 9726            workspace.add_item_to_active_pane(
 9727                single_entry_items[4].boxed_clone(),
 9728                None,
 9729                true,
 9730                window,
 9731                cx,
 9732            );
 9733
 9734            let right_pane =
 9735                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9736
 9737            let boxed_clone = single_entry_items[1].boxed_clone();
 9738            let right_pane = window.spawn(cx, async move |cx| {
 9739                right_pane.await.inspect(|right_pane| {
 9740                    right_pane
 9741                        .update_in(cx, |pane, window, cx| {
 9742                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9743                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9744                        })
 9745                        .unwrap();
 9746                })
 9747            });
 9748
 9749            (left_pane, right_pane)
 9750        });
 9751        let right_pane = right_pane.await.unwrap();
 9752        cx.focus(&right_pane);
 9753
 9754        let close = right_pane.update_in(cx, |pane, window, cx| {
 9755            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9756                .unwrap()
 9757        });
 9758        cx.executor().run_until_parked();
 9759
 9760        let msg = cx.pending_prompt().unwrap().0;
 9761        assert!(msg.contains("1.txt"));
 9762        assert!(!msg.contains("2.txt"));
 9763        assert!(!msg.contains("3.txt"));
 9764        assert!(!msg.contains("4.txt"));
 9765
 9766        // With best-effort close, cancelling item 1 keeps it open but items 4
 9767        // and (3,4) still close since their entries exist in left pane.
 9768        cx.simulate_prompt_answer("Cancel");
 9769        close.await;
 9770
 9771        right_pane.read_with(cx, |pane, _| {
 9772            assert_eq!(pane.items_len(), 1);
 9773        });
 9774
 9775        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9776        left_pane
 9777            .update_in(cx, |left_pane, window, cx| {
 9778                left_pane.close_item_by_id(
 9779                    single_entry_items[3].entity_id(),
 9780                    SaveIntent::Skip,
 9781                    window,
 9782                    cx,
 9783                )
 9784            })
 9785            .await
 9786            .unwrap();
 9787
 9788        let close = left_pane.update_in(cx, |pane, window, cx| {
 9789            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9790                .unwrap()
 9791        });
 9792        cx.executor().run_until_parked();
 9793
 9794        let details = cx.pending_prompt().unwrap().1;
 9795        assert!(details.contains("0.txt"));
 9796        assert!(details.contains("3.txt"));
 9797        assert!(details.contains("4.txt"));
 9798        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9799        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9800        // assert!(!details.contains("2.txt"));
 9801
 9802        cx.simulate_prompt_answer("Save all");
 9803        cx.executor().run_until_parked();
 9804        close.await;
 9805
 9806        left_pane.read_with(cx, |pane, _| {
 9807            assert_eq!(pane.items_len(), 0);
 9808        });
 9809    }
 9810
 9811    #[gpui::test]
 9812    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9813        init_test(cx);
 9814
 9815        let fs = FakeFs::new(cx.executor());
 9816        let project = Project::test(fs, [], cx).await;
 9817        let (workspace, cx) =
 9818            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9819        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9820
 9821        let item = cx.new(|cx| {
 9822            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9823        });
 9824        let item_id = item.entity_id();
 9825        workspace.update_in(cx, |workspace, window, cx| {
 9826            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9827        });
 9828
 9829        // Autosave on window change.
 9830        item.update(cx, |item, cx| {
 9831            SettingsStore::update_global(cx, |settings, cx| {
 9832                settings.update_user_settings(cx, |settings| {
 9833                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9834                })
 9835            });
 9836            item.is_dirty = true;
 9837        });
 9838
 9839        // Deactivating the window saves the file.
 9840        cx.deactivate_window();
 9841        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9842
 9843        // Re-activating the window doesn't save the file.
 9844        cx.update(|window, _| window.activate_window());
 9845        cx.executor().run_until_parked();
 9846        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9847
 9848        // Autosave on focus change.
 9849        item.update_in(cx, |item, window, cx| {
 9850            cx.focus_self(window);
 9851            SettingsStore::update_global(cx, |settings, cx| {
 9852                settings.update_user_settings(cx, |settings| {
 9853                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9854                })
 9855            });
 9856            item.is_dirty = true;
 9857        });
 9858        // Blurring the item saves the file.
 9859        item.update_in(cx, |_, window, _| window.blur());
 9860        cx.executor().run_until_parked();
 9861        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9862
 9863        // Deactivating the window still saves the file.
 9864        item.update_in(cx, |item, window, cx| {
 9865            cx.focus_self(window);
 9866            item.is_dirty = true;
 9867        });
 9868        cx.deactivate_window();
 9869        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9870
 9871        // Autosave after delay.
 9872        item.update(cx, |item, cx| {
 9873            SettingsStore::update_global(cx, |settings, cx| {
 9874                settings.update_user_settings(cx, |settings| {
 9875                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9876                        milliseconds: 500.into(),
 9877                    });
 9878                })
 9879            });
 9880            item.is_dirty = true;
 9881            cx.emit(ItemEvent::Edit);
 9882        });
 9883
 9884        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9885        cx.executor().advance_clock(Duration::from_millis(250));
 9886        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9887
 9888        // After delay expires, the file is saved.
 9889        cx.executor().advance_clock(Duration::from_millis(250));
 9890        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9891
 9892        // Autosave after delay, should save earlier than delay if tab is closed
 9893        item.update(cx, |item, cx| {
 9894            item.is_dirty = true;
 9895            cx.emit(ItemEvent::Edit);
 9896        });
 9897        cx.executor().advance_clock(Duration::from_millis(250));
 9898        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9899
 9900        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9901        pane.update_in(cx, |pane, window, cx| {
 9902            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9903        })
 9904        .await
 9905        .unwrap();
 9906        assert!(!cx.has_pending_prompt());
 9907        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9908
 9909        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9910        workspace.update_in(cx, |workspace, window, cx| {
 9911            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9912        });
 9913        item.update_in(cx, |item, _window, cx| {
 9914            item.is_dirty = true;
 9915            for project_item in &mut item.project_items {
 9916                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9917            }
 9918        });
 9919        cx.run_until_parked();
 9920        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9921
 9922        // Autosave on focus change, ensuring closing the tab counts as such.
 9923        item.update(cx, |item, cx| {
 9924            SettingsStore::update_global(cx, |settings, cx| {
 9925                settings.update_user_settings(cx, |settings| {
 9926                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9927                })
 9928            });
 9929            item.is_dirty = true;
 9930            for project_item in &mut item.project_items {
 9931                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9932            }
 9933        });
 9934
 9935        pane.update_in(cx, |pane, window, cx| {
 9936            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9937        })
 9938        .await
 9939        .unwrap();
 9940        assert!(!cx.has_pending_prompt());
 9941        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9942
 9943        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9944        workspace.update_in(cx, |workspace, window, cx| {
 9945            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9946        });
 9947        item.update_in(cx, |item, window, cx| {
 9948            item.project_items[0].update(cx, |item, _| {
 9949                item.entry_id = None;
 9950            });
 9951            item.is_dirty = true;
 9952            window.blur();
 9953        });
 9954        cx.run_until_parked();
 9955        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9956
 9957        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9958        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9959            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9960        });
 9961        cx.run_until_parked();
 9962        assert!(cx.has_pending_prompt());
 9963        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9964    }
 9965
 9966    #[gpui::test]
 9967    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9968        init_test(cx);
 9969
 9970        let fs = FakeFs::new(cx.executor());
 9971
 9972        let project = Project::test(fs, [], cx).await;
 9973        let (workspace, cx) =
 9974            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9975
 9976        let item = cx.new(|cx| {
 9977            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9978        });
 9979        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9980        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9981        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9982
 9983        workspace.update_in(cx, |workspace, window, cx| {
 9984            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9985            let toolbar_notification_count = toolbar_notify_count.clone();
 9986            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9987                *toolbar_notification_count.borrow_mut() += 1
 9988            })
 9989            .detach();
 9990        });
 9991
 9992        pane.read_with(cx, |pane, _| {
 9993            assert!(!pane.can_navigate_backward());
 9994            assert!(!pane.can_navigate_forward());
 9995        });
 9996
 9997        item.update_in(cx, |item, _, cx| {
 9998            item.set_state("one".to_string(), cx);
 9999        });
10000
10001        // Toolbar must be notified to re-render the navigation buttons
10002        assert_eq!(*toolbar_notify_count.borrow(), 1);
10003
10004        pane.read_with(cx, |pane, _| {
10005            assert!(pane.can_navigate_backward());
10006            assert!(!pane.can_navigate_forward());
10007        });
10008
10009        workspace
10010            .update_in(cx, |workspace, window, cx| {
10011                workspace.go_back(pane.downgrade(), window, cx)
10012            })
10013            .await
10014            .unwrap();
10015
10016        assert_eq!(*toolbar_notify_count.borrow(), 2);
10017        pane.read_with(cx, |pane, _| {
10018            assert!(!pane.can_navigate_backward());
10019            assert!(pane.can_navigate_forward());
10020        });
10021    }
10022
10023    #[gpui::test]
10024    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
10025        init_test(cx);
10026        let fs = FakeFs::new(cx.executor());
10027
10028        let project = Project::test(fs, [], cx).await;
10029        let (workspace, cx) =
10030            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10031
10032        let panel = workspace.update_in(cx, |workspace, window, cx| {
10033            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10034            workspace.add_panel(panel.clone(), window, cx);
10035
10036            workspace
10037                .right_dock()
10038                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10039
10040            panel
10041        });
10042
10043        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10044        pane.update_in(cx, |pane, window, cx| {
10045            let item = cx.new(TestItem::new);
10046            pane.add_item(Box::new(item), true, true, None, window, cx);
10047        });
10048
10049        // Transfer focus from center to panel
10050        workspace.update_in(cx, |workspace, window, cx| {
10051            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10052        });
10053
10054        workspace.update_in(cx, |workspace, window, cx| {
10055            assert!(workspace.right_dock().read(cx).is_open());
10056            assert!(!panel.is_zoomed(window, cx));
10057            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10058        });
10059
10060        // Transfer focus from panel to center
10061        workspace.update_in(cx, |workspace, window, cx| {
10062            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10063        });
10064
10065        workspace.update_in(cx, |workspace, window, cx| {
10066            assert!(workspace.right_dock().read(cx).is_open());
10067            assert!(!panel.is_zoomed(window, cx));
10068            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10069        });
10070
10071        // Close the dock
10072        workspace.update_in(cx, |workspace, window, cx| {
10073            workspace.toggle_dock(DockPosition::Right, window, cx);
10074        });
10075
10076        workspace.update_in(cx, |workspace, window, cx| {
10077            assert!(!workspace.right_dock().read(cx).is_open());
10078            assert!(!panel.is_zoomed(window, cx));
10079            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10080        });
10081
10082        // Open the dock
10083        workspace.update_in(cx, |workspace, window, cx| {
10084            workspace.toggle_dock(DockPosition::Right, window, cx);
10085        });
10086
10087        workspace.update_in(cx, |workspace, window, cx| {
10088            assert!(workspace.right_dock().read(cx).is_open());
10089            assert!(!panel.is_zoomed(window, cx));
10090            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10091        });
10092
10093        // Focus and zoom panel
10094        panel.update_in(cx, |panel, window, cx| {
10095            cx.focus_self(window);
10096            panel.set_zoomed(true, window, cx)
10097        });
10098
10099        workspace.update_in(cx, |workspace, window, cx| {
10100            assert!(workspace.right_dock().read(cx).is_open());
10101            assert!(panel.is_zoomed(window, cx));
10102            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10103        });
10104
10105        // Transfer focus to the center closes the dock
10106        workspace.update_in(cx, |workspace, window, cx| {
10107            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10108        });
10109
10110        workspace.update_in(cx, |workspace, window, cx| {
10111            assert!(!workspace.right_dock().read(cx).is_open());
10112            assert!(panel.is_zoomed(window, cx));
10113            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10114        });
10115
10116        // Transferring focus back to the panel keeps it zoomed
10117        workspace.update_in(cx, |workspace, window, cx| {
10118            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10119        });
10120
10121        workspace.update_in(cx, |workspace, window, cx| {
10122            assert!(workspace.right_dock().read(cx).is_open());
10123            assert!(panel.is_zoomed(window, cx));
10124            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10125        });
10126
10127        // Close the dock while it is zoomed
10128        workspace.update_in(cx, |workspace, window, cx| {
10129            workspace.toggle_dock(DockPosition::Right, window, cx)
10130        });
10131
10132        workspace.update_in(cx, |workspace, window, cx| {
10133            assert!(!workspace.right_dock().read(cx).is_open());
10134            assert!(panel.is_zoomed(window, cx));
10135            assert!(workspace.zoomed.is_none());
10136            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10137        });
10138
10139        // Opening the dock, when it's zoomed, retains focus
10140        workspace.update_in(cx, |workspace, window, cx| {
10141            workspace.toggle_dock(DockPosition::Right, window, cx)
10142        });
10143
10144        workspace.update_in(cx, |workspace, window, cx| {
10145            assert!(workspace.right_dock().read(cx).is_open());
10146            assert!(panel.is_zoomed(window, cx));
10147            assert!(workspace.zoomed.is_some());
10148            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10149        });
10150
10151        // Unzoom and close the panel, zoom the active pane.
10152        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
10153        workspace.update_in(cx, |workspace, window, cx| {
10154            workspace.toggle_dock(DockPosition::Right, window, cx)
10155        });
10156        pane.update_in(cx, |pane, window, cx| {
10157            pane.toggle_zoom(&Default::default(), window, cx)
10158        });
10159
10160        // Opening a dock unzooms the pane.
10161        workspace.update_in(cx, |workspace, window, cx| {
10162            workspace.toggle_dock(DockPosition::Right, window, cx)
10163        });
10164        workspace.update_in(cx, |workspace, window, cx| {
10165            let pane = pane.read(cx);
10166            assert!(!pane.is_zoomed());
10167            assert!(!pane.focus_handle(cx).is_focused(window));
10168            assert!(workspace.right_dock().read(cx).is_open());
10169            assert!(workspace.zoomed.is_none());
10170        });
10171    }
10172
10173    #[gpui::test]
10174    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
10175        init_test(cx);
10176        let fs = FakeFs::new(cx.executor());
10177
10178        let project = Project::test(fs, [], cx).await;
10179        let (workspace, cx) =
10180            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10181
10182        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
10183            workspace.active_pane().clone()
10184        });
10185
10186        // Add an item to the pane so it can be zoomed
10187        workspace.update_in(cx, |workspace, window, cx| {
10188            let item = cx.new(TestItem::new);
10189            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
10190        });
10191
10192        // Initially not zoomed
10193        workspace.update_in(cx, |workspace, _window, cx| {
10194            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
10195            assert!(
10196                workspace.zoomed.is_none(),
10197                "Workspace should track no zoomed pane"
10198            );
10199            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
10200        });
10201
10202        // Zoom In
10203        pane.update_in(cx, |pane, window, cx| {
10204            pane.zoom_in(&crate::ZoomIn, window, cx);
10205        });
10206
10207        workspace.update_in(cx, |workspace, window, cx| {
10208            assert!(
10209                pane.read(cx).is_zoomed(),
10210                "Pane should be zoomed after ZoomIn"
10211            );
10212            assert!(
10213                workspace.zoomed.is_some(),
10214                "Workspace should track the zoomed pane"
10215            );
10216            assert!(
10217                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10218                "ZoomIn should focus the pane"
10219            );
10220        });
10221
10222        // Zoom In again is a no-op
10223        pane.update_in(cx, |pane, window, cx| {
10224            pane.zoom_in(&crate::ZoomIn, window, cx);
10225        });
10226
10227        workspace.update_in(cx, |workspace, window, cx| {
10228            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
10229            assert!(
10230                workspace.zoomed.is_some(),
10231                "Workspace still tracks zoomed pane"
10232            );
10233            assert!(
10234                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10235                "Pane remains focused after repeated ZoomIn"
10236            );
10237        });
10238
10239        // Zoom Out
10240        pane.update_in(cx, |pane, window, cx| {
10241            pane.zoom_out(&crate::ZoomOut, window, cx);
10242        });
10243
10244        workspace.update_in(cx, |workspace, _window, cx| {
10245            assert!(
10246                !pane.read(cx).is_zoomed(),
10247                "Pane should unzoom after ZoomOut"
10248            );
10249            assert!(
10250                workspace.zoomed.is_none(),
10251                "Workspace clears zoom tracking after ZoomOut"
10252            );
10253        });
10254
10255        // Zoom Out again is a no-op
10256        pane.update_in(cx, |pane, window, cx| {
10257            pane.zoom_out(&crate::ZoomOut, window, cx);
10258        });
10259
10260        workspace.update_in(cx, |workspace, _window, cx| {
10261            assert!(
10262                !pane.read(cx).is_zoomed(),
10263                "Second ZoomOut keeps pane unzoomed"
10264            );
10265            assert!(
10266                workspace.zoomed.is_none(),
10267                "Workspace remains without zoomed pane"
10268            );
10269        });
10270    }
10271
10272    #[gpui::test]
10273    async fn test_zoomed_dock_persists_across_window_activation(cx: &mut gpui::TestAppContext) {
10274        init_test(cx);
10275        let fs = FakeFs::new(cx.executor());
10276
10277        let project = Project::test(fs, [], cx).await;
10278        let (workspace, cx) =
10279            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10280
10281        let panel = workspace.update_in(cx, |workspace, window, cx| {
10282            let panel = cx.new(|cx| TestPanel::new(DockPosition::Bottom, 100, cx));
10283            workspace.add_panel(panel.clone(), window, cx);
10284            workspace.toggle_dock(DockPosition::Bottom, window, cx);
10285            panel
10286        });
10287
10288        // Activate and zoom the panel
10289        panel.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10290        panel.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10291
10292        // Verify the dock is open and zoomed with focus in the panel
10293        workspace.update_in(cx, |workspace, window, cx| {
10294            assert!(
10295                workspace.bottom_dock().read(cx).is_open(),
10296                "Bottom dock should be open"
10297            );
10298            assert!(panel.is_zoomed(window, cx), "Panel should be zoomed");
10299            assert!(
10300                workspace.zoomed.is_some(),
10301                "Workspace should track the zoomed panel"
10302            );
10303            assert!(
10304                workspace.zoomed_position.is_some(),
10305                "Workspace should track the zoomed dock position"
10306            );
10307            assert!(
10308                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
10309                "Panel should be focused"
10310            );
10311        });
10312
10313        // Deactivate the window (simulates cmd-tab away from Zed)
10314        cx.deactivate_window();
10315
10316        // Verify the dock is still open while window is deactivated
10317        // (the bug manifests on REactivation, not deactivation)
10318        workspace.update_in(cx, |workspace, window, cx| {
10319            assert!(
10320                workspace.bottom_dock().read(cx).is_open(),
10321                "Bottom dock should still be open while window is deactivated"
10322            );
10323            assert!(
10324                panel.is_zoomed(window, cx),
10325                "Panel should still be zoomed while window is deactivated"
10326            );
10327            assert!(
10328                workspace.zoomed_position.is_some(),
10329                "zoomed_position should still be set while window is deactivated"
10330            );
10331        });
10332
10333        // Reactivate the window (simulates cmd-tab back to Zed)
10334        // During reactivation, focus is restored to the dock panel
10335        cx.update(|window, _cx| {
10336            window.activate_window();
10337        });
10338        cx.run_until_parked();
10339
10340        // Verify zoomed dock remains open after reactivation
10341        workspace.update_in(cx, |workspace, window, cx| {
10342            assert!(
10343                workspace.bottom_dock().read(cx).is_open(),
10344                "Bottom dock should remain open after window reactivation"
10345            );
10346            assert!(
10347                panel.is_zoomed(window, cx),
10348                "Panel should remain zoomed after window reactivation"
10349            );
10350            assert!(
10351                workspace.zoomed.is_some(),
10352                "Workspace should still track the zoomed panel after window reactivation"
10353            );
10354        });
10355    }
10356
10357    #[gpui::test]
10358    async fn test_zoomed_dock_dismissed_when_focus_moves_to_center_pane(
10359        cx: &mut gpui::TestAppContext,
10360    ) {
10361        init_test(cx);
10362        let fs = FakeFs::new(cx.executor());
10363
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        let panel = workspace.update_in(cx, |workspace, window, cx| {
10369            let panel = cx.new(|cx| TestPanel::new(DockPosition::Bottom, 100, cx));
10370            workspace.add_panel(panel.clone(), window, cx);
10371            workspace.toggle_dock(DockPosition::Bottom, window, cx);
10372            panel
10373        });
10374
10375        // Activate and zoom the panel
10376        panel.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10377        panel.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10378
10379        // Verify setup
10380        workspace.update_in(cx, |workspace, window, cx| {
10381            assert!(workspace.bottom_dock().read(cx).is_open());
10382            assert!(panel.is_zoomed(window, cx));
10383            assert!(workspace.zoomed_position.is_some());
10384        });
10385
10386        // Explicitly focus the center pane (simulates user clicking in the editor)
10387        workspace.update_in(cx, |workspace, window, cx| {
10388            window.focus(&workspace.active_pane().focus_handle(cx), cx);
10389        });
10390        cx.run_until_parked();
10391
10392        // When user explicitly focuses the center pane, the zoomed dock SHOULD be dismissed
10393        workspace.update_in(cx, |workspace, _window, cx| {
10394            assert!(
10395                !workspace.bottom_dock().read(cx).is_open(),
10396                "Bottom dock should be closed when focus explicitly moves to center pane"
10397            );
10398            assert!(
10399                workspace.zoomed.is_none(),
10400                "Workspace should not track zoomed panel when focus explicitly moves to center pane"
10401            );
10402            assert!(
10403                workspace.zoomed_position.is_none(),
10404                "Workspace zoomed_position should be None when focus explicitly moves to center pane"
10405            );
10406        });
10407    }
10408
10409    #[gpui::test]
10410    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
10411        init_test(cx);
10412        let fs = FakeFs::new(cx.executor());
10413
10414        let project = Project::test(fs, [], cx).await;
10415        let (workspace, cx) =
10416            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10417        workspace.update_in(cx, |workspace, window, cx| {
10418            // Open two docks
10419            let left_dock = workspace.dock_at_position(DockPosition::Left);
10420            let right_dock = workspace.dock_at_position(DockPosition::Right);
10421
10422            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10423            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10424
10425            assert!(left_dock.read(cx).is_open());
10426            assert!(right_dock.read(cx).is_open());
10427        });
10428
10429        workspace.update_in(cx, |workspace, window, cx| {
10430            // Toggle all docks - should close both
10431            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10432
10433            let left_dock = workspace.dock_at_position(DockPosition::Left);
10434            let right_dock = workspace.dock_at_position(DockPosition::Right);
10435            assert!(!left_dock.read(cx).is_open());
10436            assert!(!right_dock.read(cx).is_open());
10437        });
10438
10439        workspace.update_in(cx, |workspace, window, cx| {
10440            // Toggle again - should reopen both
10441            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10442
10443            let left_dock = workspace.dock_at_position(DockPosition::Left);
10444            let right_dock = workspace.dock_at_position(DockPosition::Right);
10445            assert!(left_dock.read(cx).is_open());
10446            assert!(right_dock.read(cx).is_open());
10447        });
10448    }
10449
10450    #[gpui::test]
10451    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10452        init_test(cx);
10453        let fs = FakeFs::new(cx.executor());
10454
10455        let project = Project::test(fs, [], cx).await;
10456        let (workspace, cx) =
10457            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10458        workspace.update_in(cx, |workspace, window, cx| {
10459            // Open two docks
10460            let left_dock = workspace.dock_at_position(DockPosition::Left);
10461            let right_dock = workspace.dock_at_position(DockPosition::Right);
10462
10463            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10464            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10465
10466            assert!(left_dock.read(cx).is_open());
10467            assert!(right_dock.read(cx).is_open());
10468        });
10469
10470        workspace.update_in(cx, |workspace, window, cx| {
10471            // Close them manually
10472            workspace.toggle_dock(DockPosition::Left, window, cx);
10473            workspace.toggle_dock(DockPosition::Right, window, cx);
10474
10475            let left_dock = workspace.dock_at_position(DockPosition::Left);
10476            let right_dock = workspace.dock_at_position(DockPosition::Right);
10477            assert!(!left_dock.read(cx).is_open());
10478            assert!(!right_dock.read(cx).is_open());
10479        });
10480
10481        workspace.update_in(cx, |workspace, window, cx| {
10482            // Toggle all docks - only last closed (right dock) should reopen
10483            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10484
10485            let left_dock = workspace.dock_at_position(DockPosition::Left);
10486            let right_dock = workspace.dock_at_position(DockPosition::Right);
10487            assert!(!left_dock.read(cx).is_open());
10488            assert!(right_dock.read(cx).is_open());
10489        });
10490    }
10491
10492    #[gpui::test]
10493    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10494        init_test(cx);
10495        let fs = FakeFs::new(cx.executor());
10496        let project = Project::test(fs, [], cx).await;
10497        let (workspace, cx) =
10498            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10499
10500        // Open two docks (left and right) with one panel each
10501        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10502            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10503            workspace.add_panel(left_panel.clone(), window, cx);
10504
10505            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10506            workspace.add_panel(right_panel.clone(), window, cx);
10507
10508            workspace.toggle_dock(DockPosition::Left, window, cx);
10509            workspace.toggle_dock(DockPosition::Right, window, cx);
10510
10511            // Verify initial state
10512            assert!(
10513                workspace.left_dock().read(cx).is_open(),
10514                "Left dock should be open"
10515            );
10516            assert_eq!(
10517                workspace
10518                    .left_dock()
10519                    .read(cx)
10520                    .visible_panel()
10521                    .unwrap()
10522                    .panel_id(),
10523                left_panel.panel_id(),
10524                "Left panel should be visible in left dock"
10525            );
10526            assert!(
10527                workspace.right_dock().read(cx).is_open(),
10528                "Right dock should be open"
10529            );
10530            assert_eq!(
10531                workspace
10532                    .right_dock()
10533                    .read(cx)
10534                    .visible_panel()
10535                    .unwrap()
10536                    .panel_id(),
10537                right_panel.panel_id(),
10538                "Right panel should be visible in right dock"
10539            );
10540            assert!(
10541                !workspace.bottom_dock().read(cx).is_open(),
10542                "Bottom dock should be closed"
10543            );
10544
10545            (left_panel, right_panel)
10546        });
10547
10548        // Focus the left panel and move it to the next position (bottom dock)
10549        workspace.update_in(cx, |workspace, window, cx| {
10550            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10551            assert!(
10552                left_panel.read(cx).focus_handle(cx).is_focused(window),
10553                "Left panel should be focused"
10554            );
10555        });
10556
10557        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10558
10559        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10560        workspace.update(cx, |workspace, cx| {
10561            assert!(
10562                !workspace.left_dock().read(cx).is_open(),
10563                "Left dock should be closed"
10564            );
10565            assert!(
10566                workspace.bottom_dock().read(cx).is_open(),
10567                "Bottom dock should now be open"
10568            );
10569            assert_eq!(
10570                left_panel.read(cx).position,
10571                DockPosition::Bottom,
10572                "Left panel should now be in the bottom dock"
10573            );
10574            assert_eq!(
10575                workspace
10576                    .bottom_dock()
10577                    .read(cx)
10578                    .visible_panel()
10579                    .unwrap()
10580                    .panel_id(),
10581                left_panel.panel_id(),
10582                "Left panel should be the visible panel in the bottom dock"
10583            );
10584        });
10585
10586        // Toggle all docks off
10587        workspace.update_in(cx, |workspace, window, cx| {
10588            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10589            assert!(
10590                !workspace.left_dock().read(cx).is_open(),
10591                "Left dock should be closed"
10592            );
10593            assert!(
10594                !workspace.right_dock().read(cx).is_open(),
10595                "Right dock should be closed"
10596            );
10597            assert!(
10598                !workspace.bottom_dock().read(cx).is_open(),
10599                "Bottom dock should be closed"
10600            );
10601        });
10602
10603        // Toggle all docks back on and verify positions are restored
10604        workspace.update_in(cx, |workspace, window, cx| {
10605            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10606            assert!(
10607                !workspace.left_dock().read(cx).is_open(),
10608                "Left dock should remain closed"
10609            );
10610            assert!(
10611                workspace.right_dock().read(cx).is_open(),
10612                "Right dock should remain open"
10613            );
10614            assert!(
10615                workspace.bottom_dock().read(cx).is_open(),
10616                "Bottom dock should remain open"
10617            );
10618            assert_eq!(
10619                left_panel.read(cx).position,
10620                DockPosition::Bottom,
10621                "Left panel should remain in the bottom dock"
10622            );
10623            assert_eq!(
10624                right_panel.read(cx).position,
10625                DockPosition::Right,
10626                "Right panel should remain in the right dock"
10627            );
10628            assert_eq!(
10629                workspace
10630                    .bottom_dock()
10631                    .read(cx)
10632                    .visible_panel()
10633                    .unwrap()
10634                    .panel_id(),
10635                left_panel.panel_id(),
10636                "Left panel should be the visible panel in the right dock"
10637            );
10638        });
10639    }
10640
10641    #[gpui::test]
10642    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10643        init_test(cx);
10644
10645        let fs = FakeFs::new(cx.executor());
10646
10647        let project = Project::test(fs, None, cx).await;
10648        let (workspace, cx) =
10649            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10650
10651        // Let's arrange the panes like this:
10652        //
10653        // +-----------------------+
10654        // |         top           |
10655        // +------+--------+-------+
10656        // | left | center | right |
10657        // +------+--------+-------+
10658        // |        bottom         |
10659        // +-----------------------+
10660
10661        let top_item = cx.new(|cx| {
10662            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10663        });
10664        let bottom_item = cx.new(|cx| {
10665            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10666        });
10667        let left_item = cx.new(|cx| {
10668            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10669        });
10670        let right_item = cx.new(|cx| {
10671            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10672        });
10673        let center_item = cx.new(|cx| {
10674            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10675        });
10676
10677        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10678            let top_pane_id = workspace.active_pane().entity_id();
10679            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10680            workspace.split_pane(
10681                workspace.active_pane().clone(),
10682                SplitDirection::Down,
10683                window,
10684                cx,
10685            );
10686            top_pane_id
10687        });
10688        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10689            let bottom_pane_id = workspace.active_pane().entity_id();
10690            workspace.add_item_to_active_pane(
10691                Box::new(bottom_item.clone()),
10692                None,
10693                false,
10694                window,
10695                cx,
10696            );
10697            workspace.split_pane(
10698                workspace.active_pane().clone(),
10699                SplitDirection::Up,
10700                window,
10701                cx,
10702            );
10703            bottom_pane_id
10704        });
10705        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10706            let left_pane_id = workspace.active_pane().entity_id();
10707            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10708            workspace.split_pane(
10709                workspace.active_pane().clone(),
10710                SplitDirection::Right,
10711                window,
10712                cx,
10713            );
10714            left_pane_id
10715        });
10716        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10717            let right_pane_id = workspace.active_pane().entity_id();
10718            workspace.add_item_to_active_pane(
10719                Box::new(right_item.clone()),
10720                None,
10721                false,
10722                window,
10723                cx,
10724            );
10725            workspace.split_pane(
10726                workspace.active_pane().clone(),
10727                SplitDirection::Left,
10728                window,
10729                cx,
10730            );
10731            right_pane_id
10732        });
10733        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10734            let center_pane_id = workspace.active_pane().entity_id();
10735            workspace.add_item_to_active_pane(
10736                Box::new(center_item.clone()),
10737                None,
10738                false,
10739                window,
10740                cx,
10741            );
10742            center_pane_id
10743        });
10744        cx.executor().run_until_parked();
10745
10746        workspace.update_in(cx, |workspace, window, cx| {
10747            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10748
10749            // Join into next from center pane into right
10750            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10751        });
10752
10753        workspace.update_in(cx, |workspace, window, cx| {
10754            let active_pane = workspace.active_pane();
10755            assert_eq!(right_pane_id, active_pane.entity_id());
10756            assert_eq!(2, active_pane.read(cx).items_len());
10757            let item_ids_in_pane =
10758                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10759            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10760            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10761
10762            // Join into next from right pane into bottom
10763            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10764        });
10765
10766        workspace.update_in(cx, |workspace, window, cx| {
10767            let active_pane = workspace.active_pane();
10768            assert_eq!(bottom_pane_id, active_pane.entity_id());
10769            assert_eq!(3, active_pane.read(cx).items_len());
10770            let item_ids_in_pane =
10771                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10772            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10773            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10774            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10775
10776            // Join into next from bottom pane into left
10777            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10778        });
10779
10780        workspace.update_in(cx, |workspace, window, cx| {
10781            let active_pane = workspace.active_pane();
10782            assert_eq!(left_pane_id, active_pane.entity_id());
10783            assert_eq!(4, active_pane.read(cx).items_len());
10784            let item_ids_in_pane =
10785                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10786            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10787            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10788            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10789            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10790
10791            // Join into next from left pane into top
10792            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10793        });
10794
10795        workspace.update_in(cx, |workspace, window, cx| {
10796            let active_pane = workspace.active_pane();
10797            assert_eq!(top_pane_id, active_pane.entity_id());
10798            assert_eq!(5, active_pane.read(cx).items_len());
10799            let item_ids_in_pane =
10800                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10801            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10802            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10803            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10804            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10805            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10806
10807            // Single pane left: no-op
10808            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10809        });
10810
10811        workspace.update(cx, |workspace, _cx| {
10812            let active_pane = workspace.active_pane();
10813            assert_eq!(top_pane_id, active_pane.entity_id());
10814        });
10815    }
10816
10817    fn add_an_item_to_active_pane(
10818        cx: &mut VisualTestContext,
10819        workspace: &Entity<Workspace>,
10820        item_id: u64,
10821    ) -> Entity<TestItem> {
10822        let item = cx.new(|cx| {
10823            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10824                item_id,
10825                "item{item_id}.txt",
10826                cx,
10827            )])
10828        });
10829        workspace.update_in(cx, |workspace, window, cx| {
10830            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10831        });
10832        item
10833    }
10834
10835    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10836        workspace.update_in(cx, |workspace, window, cx| {
10837            workspace.split_pane(
10838                workspace.active_pane().clone(),
10839                SplitDirection::Right,
10840                window,
10841                cx,
10842            )
10843        })
10844    }
10845
10846    #[gpui::test]
10847    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10848        init_test(cx);
10849        let fs = FakeFs::new(cx.executor());
10850        let project = Project::test(fs, None, cx).await;
10851        let (workspace, cx) =
10852            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10853
10854        add_an_item_to_active_pane(cx, &workspace, 1);
10855        split_pane(cx, &workspace);
10856        add_an_item_to_active_pane(cx, &workspace, 2);
10857        split_pane(cx, &workspace); // empty pane
10858        split_pane(cx, &workspace);
10859        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10860
10861        cx.executor().run_until_parked();
10862
10863        workspace.update(cx, |workspace, cx| {
10864            let num_panes = workspace.panes().len();
10865            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10866            let active_item = workspace
10867                .active_pane()
10868                .read(cx)
10869                .active_item()
10870                .expect("item is in focus");
10871
10872            assert_eq!(num_panes, 4);
10873            assert_eq!(num_items_in_current_pane, 1);
10874            assert_eq!(active_item.item_id(), last_item.item_id());
10875        });
10876
10877        workspace.update_in(cx, |workspace, window, cx| {
10878            workspace.join_all_panes(window, cx);
10879        });
10880
10881        workspace.update(cx, |workspace, cx| {
10882            let num_panes = workspace.panes().len();
10883            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10884            let active_item = workspace
10885                .active_pane()
10886                .read(cx)
10887                .active_item()
10888                .expect("item is in focus");
10889
10890            assert_eq!(num_panes, 1);
10891            assert_eq!(num_items_in_current_pane, 3);
10892            assert_eq!(active_item.item_id(), last_item.item_id());
10893        });
10894    }
10895    struct TestModal(FocusHandle);
10896
10897    impl TestModal {
10898        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10899            Self(cx.focus_handle())
10900        }
10901    }
10902
10903    impl EventEmitter<DismissEvent> for TestModal {}
10904
10905    impl Focusable for TestModal {
10906        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10907            self.0.clone()
10908        }
10909    }
10910
10911    impl ModalView for TestModal {}
10912
10913    impl Render for TestModal {
10914        fn render(
10915            &mut self,
10916            _window: &mut Window,
10917            _cx: &mut Context<TestModal>,
10918        ) -> impl IntoElement {
10919            div().track_focus(&self.0)
10920        }
10921    }
10922
10923    #[gpui::test]
10924    async fn test_panels(cx: &mut gpui::TestAppContext) {
10925        init_test(cx);
10926        let fs = FakeFs::new(cx.executor());
10927
10928        let project = Project::test(fs, [], cx).await;
10929        let (workspace, cx) =
10930            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10931
10932        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10933            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10934            workspace.add_panel(panel_1.clone(), window, cx);
10935            workspace.toggle_dock(DockPosition::Left, window, cx);
10936            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10937            workspace.add_panel(panel_2.clone(), window, cx);
10938            workspace.toggle_dock(DockPosition::Right, window, cx);
10939
10940            let left_dock = workspace.left_dock();
10941            assert_eq!(
10942                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10943                panel_1.panel_id()
10944            );
10945            assert_eq!(
10946                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10947                panel_1.size(window, cx)
10948            );
10949
10950            left_dock.update(cx, |left_dock, cx| {
10951                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10952            });
10953            assert_eq!(
10954                workspace
10955                    .right_dock()
10956                    .read(cx)
10957                    .visible_panel()
10958                    .unwrap()
10959                    .panel_id(),
10960                panel_2.panel_id(),
10961            );
10962
10963            (panel_1, panel_2)
10964        });
10965
10966        // Move panel_1 to the right
10967        panel_1.update_in(cx, |panel_1, window, cx| {
10968            panel_1.set_position(DockPosition::Right, window, cx)
10969        });
10970
10971        workspace.update_in(cx, |workspace, window, cx| {
10972            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10973            // Since it was the only panel on the left, the left dock should now be closed.
10974            assert!(!workspace.left_dock().read(cx).is_open());
10975            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10976            let right_dock = workspace.right_dock();
10977            assert_eq!(
10978                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10979                panel_1.panel_id()
10980            );
10981            assert_eq!(
10982                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10983                px(1337.)
10984            );
10985
10986            // Now we move panel_2 to the left
10987            panel_2.set_position(DockPosition::Left, window, cx);
10988        });
10989
10990        workspace.update(cx, |workspace, cx| {
10991            // Since panel_2 was not visible on the right, we don't open the left dock.
10992            assert!(!workspace.left_dock().read(cx).is_open());
10993            // And the right dock is unaffected in its displaying of panel_1
10994            assert!(workspace.right_dock().read(cx).is_open());
10995            assert_eq!(
10996                workspace
10997                    .right_dock()
10998                    .read(cx)
10999                    .visible_panel()
11000                    .unwrap()
11001                    .panel_id(),
11002                panel_1.panel_id(),
11003            );
11004        });
11005
11006        // Move panel_1 back to the left
11007        panel_1.update_in(cx, |panel_1, window, cx| {
11008            panel_1.set_position(DockPosition::Left, window, cx)
11009        });
11010
11011        workspace.update_in(cx, |workspace, window, cx| {
11012            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
11013            let left_dock = workspace.left_dock();
11014            assert!(left_dock.read(cx).is_open());
11015            assert_eq!(
11016                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11017                panel_1.panel_id()
11018            );
11019            assert_eq!(
11020                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11021                px(1337.)
11022            );
11023            // And the right dock should be closed as it no longer has any panels.
11024            assert!(!workspace.right_dock().read(cx).is_open());
11025
11026            // Now we move panel_1 to the bottom
11027            panel_1.set_position(DockPosition::Bottom, window, cx);
11028        });
11029
11030        workspace.update_in(cx, |workspace, window, cx| {
11031            // Since panel_1 was visible on the left, we close the left dock.
11032            assert!(!workspace.left_dock().read(cx).is_open());
11033            // The bottom dock is sized based on the panel's default size,
11034            // since the panel orientation changed from vertical to horizontal.
11035            let bottom_dock = workspace.bottom_dock();
11036            assert_eq!(
11037                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
11038                panel_1.size(window, cx),
11039            );
11040            // Close bottom dock and move panel_1 back to the left.
11041            bottom_dock.update(cx, |bottom_dock, cx| {
11042                bottom_dock.set_open(false, window, cx)
11043            });
11044            panel_1.set_position(DockPosition::Left, window, cx);
11045        });
11046
11047        // Emit activated event on panel 1
11048        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
11049
11050        // Now the left dock is open and panel_1 is active and focused.
11051        workspace.update_in(cx, |workspace, window, cx| {
11052            let left_dock = workspace.left_dock();
11053            assert!(left_dock.read(cx).is_open());
11054            assert_eq!(
11055                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11056                panel_1.panel_id(),
11057            );
11058            assert!(panel_1.focus_handle(cx).is_focused(window));
11059        });
11060
11061        // Emit closed event on panel 2, which is not active
11062        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11063
11064        // Wo don't close the left dock, because panel_2 wasn't the active panel
11065        workspace.update(cx, |workspace, cx| {
11066            let left_dock = workspace.left_dock();
11067            assert!(left_dock.read(cx).is_open());
11068            assert_eq!(
11069                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11070                panel_1.panel_id(),
11071            );
11072        });
11073
11074        // Emitting a ZoomIn event shows the panel as zoomed.
11075        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
11076        workspace.read_with(cx, |workspace, _| {
11077            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11078            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
11079        });
11080
11081        // Move panel to another dock while it is zoomed
11082        panel_1.update_in(cx, |panel, window, cx| {
11083            panel.set_position(DockPosition::Right, window, cx)
11084        });
11085        workspace.read_with(cx, |workspace, _| {
11086            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11087
11088            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11089        });
11090
11091        // This is a helper for getting a:
11092        // - valid focus on an element,
11093        // - that isn't a part of the panes and panels system of the Workspace,
11094        // - and doesn't trigger the 'on_focus_lost' API.
11095        let focus_other_view = {
11096            let workspace = workspace.clone();
11097            move |cx: &mut VisualTestContext| {
11098                workspace.update_in(cx, |workspace, window, cx| {
11099                    if workspace.active_modal::<TestModal>(cx).is_some() {
11100                        workspace.toggle_modal(window, cx, TestModal::new);
11101                        workspace.toggle_modal(window, cx, TestModal::new);
11102                    } else {
11103                        workspace.toggle_modal(window, cx, TestModal::new);
11104                    }
11105                })
11106            }
11107        };
11108
11109        // If focus is transferred to another view that's not a panel or another pane, we still show
11110        // the panel as zoomed.
11111        focus_other_view(cx);
11112        workspace.read_with(cx, |workspace, _| {
11113            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11114            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11115        });
11116
11117        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
11118        workspace.update_in(cx, |_workspace, window, cx| {
11119            cx.focus_self(window);
11120        });
11121        workspace.read_with(cx, |workspace, _| {
11122            assert_eq!(workspace.zoomed, None);
11123            assert_eq!(workspace.zoomed_position, None);
11124        });
11125
11126        // If focus is transferred again to another view that's not a panel or a pane, we won't
11127        // show the panel as zoomed because it wasn't zoomed before.
11128        focus_other_view(cx);
11129        workspace.read_with(cx, |workspace, _| {
11130            assert_eq!(workspace.zoomed, None);
11131            assert_eq!(workspace.zoomed_position, None);
11132        });
11133
11134        // When the panel is activated, it is zoomed again.
11135        cx.dispatch_action(ToggleRightDock);
11136        workspace.read_with(cx, |workspace, _| {
11137            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11138            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11139        });
11140
11141        // Emitting a ZoomOut event unzooms the panel.
11142        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
11143        workspace.read_with(cx, |workspace, _| {
11144            assert_eq!(workspace.zoomed, None);
11145            assert_eq!(workspace.zoomed_position, None);
11146        });
11147
11148        // Emit closed event on panel 1, which is active
11149        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11150
11151        // Now the left dock is closed, because panel_1 was the active panel
11152        workspace.update(cx, |workspace, cx| {
11153            let right_dock = workspace.right_dock();
11154            assert!(!right_dock.read(cx).is_open());
11155        });
11156    }
11157
11158    #[gpui::test]
11159    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
11160        init_test(cx);
11161
11162        let fs = FakeFs::new(cx.background_executor.clone());
11163        let project = Project::test(fs, [], cx).await;
11164        let (workspace, cx) =
11165            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11166        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11167
11168        let dirty_regular_buffer = cx.new(|cx| {
11169            TestItem::new(cx)
11170                .with_dirty(true)
11171                .with_label("1.txt")
11172                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11173        });
11174        let dirty_regular_buffer_2 = cx.new(|cx| {
11175            TestItem::new(cx)
11176                .with_dirty(true)
11177                .with_label("2.txt")
11178                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11179        });
11180        let dirty_multi_buffer_with_both = cx.new(|cx| {
11181            TestItem::new(cx)
11182                .with_dirty(true)
11183                .with_buffer_kind(ItemBufferKind::Multibuffer)
11184                .with_label("Fake Project Search")
11185                .with_project_items(&[
11186                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11187                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11188                ])
11189        });
11190        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11191        workspace.update_in(cx, |workspace, window, cx| {
11192            workspace.add_item(
11193                pane.clone(),
11194                Box::new(dirty_regular_buffer.clone()),
11195                None,
11196                false,
11197                false,
11198                window,
11199                cx,
11200            );
11201            workspace.add_item(
11202                pane.clone(),
11203                Box::new(dirty_regular_buffer_2.clone()),
11204                None,
11205                false,
11206                false,
11207                window,
11208                cx,
11209            );
11210            workspace.add_item(
11211                pane.clone(),
11212                Box::new(dirty_multi_buffer_with_both.clone()),
11213                None,
11214                false,
11215                false,
11216                window,
11217                cx,
11218            );
11219        });
11220
11221        pane.update_in(cx, |pane, window, cx| {
11222            pane.activate_item(2, true, true, window, cx);
11223            assert_eq!(
11224                pane.active_item().unwrap().item_id(),
11225                multi_buffer_with_both_files_id,
11226                "Should select the multi buffer in the pane"
11227            );
11228        });
11229        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11230            pane.close_other_items(
11231                &CloseOtherItems {
11232                    save_intent: Some(SaveIntent::Save),
11233                    close_pinned: true,
11234                },
11235                None,
11236                window,
11237                cx,
11238            )
11239        });
11240        cx.background_executor.run_until_parked();
11241        assert!(!cx.has_pending_prompt());
11242        close_all_but_multi_buffer_task
11243            .await
11244            .expect("Closing all buffers but the multi buffer failed");
11245        pane.update(cx, |pane, cx| {
11246            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
11247            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
11248            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
11249            assert_eq!(pane.items_len(), 1);
11250            assert_eq!(
11251                pane.active_item().unwrap().item_id(),
11252                multi_buffer_with_both_files_id,
11253                "Should have only the multi buffer left in the pane"
11254            );
11255            assert!(
11256                dirty_multi_buffer_with_both.read(cx).is_dirty,
11257                "The multi buffer containing the unsaved buffer should still be dirty"
11258            );
11259        });
11260
11261        dirty_regular_buffer.update(cx, |buffer, cx| {
11262            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
11263        });
11264
11265        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11266            pane.close_active_item(
11267                &CloseActiveItem {
11268                    save_intent: Some(SaveIntent::Close),
11269                    close_pinned: false,
11270                },
11271                window,
11272                cx,
11273            )
11274        });
11275        cx.background_executor.run_until_parked();
11276        assert!(
11277            cx.has_pending_prompt(),
11278            "Dirty multi buffer should prompt a save dialog"
11279        );
11280        cx.simulate_prompt_answer("Save");
11281        cx.background_executor.run_until_parked();
11282        close_multi_buffer_task
11283            .await
11284            .expect("Closing the multi buffer failed");
11285        pane.update(cx, |pane, cx| {
11286            assert_eq!(
11287                dirty_multi_buffer_with_both.read(cx).save_count,
11288                1,
11289                "Multi buffer item should get be saved"
11290            );
11291            // Test impl does not save inner items, so we do not assert them
11292            assert_eq!(
11293                pane.items_len(),
11294                0,
11295                "No more items should be left in the pane"
11296            );
11297            assert!(pane.active_item().is_none());
11298        });
11299    }
11300
11301    #[gpui::test]
11302    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
11303        cx: &mut TestAppContext,
11304    ) {
11305        init_test(cx);
11306
11307        let fs = FakeFs::new(cx.background_executor.clone());
11308        let project = Project::test(fs, [], cx).await;
11309        let (workspace, cx) =
11310            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11311        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11312
11313        let dirty_regular_buffer = cx.new(|cx| {
11314            TestItem::new(cx)
11315                .with_dirty(true)
11316                .with_label("1.txt")
11317                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11318        });
11319        let dirty_regular_buffer_2 = cx.new(|cx| {
11320            TestItem::new(cx)
11321                .with_dirty(true)
11322                .with_label("2.txt")
11323                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11324        });
11325        let clear_regular_buffer = cx.new(|cx| {
11326            TestItem::new(cx)
11327                .with_label("3.txt")
11328                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11329        });
11330
11331        let dirty_multi_buffer_with_both = cx.new(|cx| {
11332            TestItem::new(cx)
11333                .with_dirty(true)
11334                .with_buffer_kind(ItemBufferKind::Multibuffer)
11335                .with_label("Fake Project Search")
11336                .with_project_items(&[
11337                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11338                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11339                    clear_regular_buffer.read(cx).project_items[0].clone(),
11340                ])
11341        });
11342        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11343        workspace.update_in(cx, |workspace, window, cx| {
11344            workspace.add_item(
11345                pane.clone(),
11346                Box::new(dirty_regular_buffer.clone()),
11347                None,
11348                false,
11349                false,
11350                window,
11351                cx,
11352            );
11353            workspace.add_item(
11354                pane.clone(),
11355                Box::new(dirty_multi_buffer_with_both.clone()),
11356                None,
11357                false,
11358                false,
11359                window,
11360                cx,
11361            );
11362        });
11363
11364        pane.update_in(cx, |pane, window, cx| {
11365            pane.activate_item(1, true, true, window, cx);
11366            assert_eq!(
11367                pane.active_item().unwrap().item_id(),
11368                multi_buffer_with_both_files_id,
11369                "Should select the multi buffer in the pane"
11370            );
11371        });
11372        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11373            pane.close_active_item(
11374                &CloseActiveItem {
11375                    save_intent: None,
11376                    close_pinned: false,
11377                },
11378                window,
11379                cx,
11380            )
11381        });
11382        cx.background_executor.run_until_parked();
11383        assert!(
11384            cx.has_pending_prompt(),
11385            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
11386        );
11387    }
11388
11389    /// Tests that when `close_on_file_delete` is enabled, files are automatically
11390    /// closed when they are deleted from disk.
11391    #[gpui::test]
11392    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
11393        init_test(cx);
11394
11395        // Enable the close_on_disk_deletion setting
11396        cx.update_global(|store: &mut SettingsStore, cx| {
11397            store.update_user_settings(cx, |settings| {
11398                settings.workspace.close_on_file_delete = Some(true);
11399            });
11400        });
11401
11402        let fs = FakeFs::new(cx.background_executor.clone());
11403        let project = Project::test(fs, [], cx).await;
11404        let (workspace, cx) =
11405            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11406        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11407
11408        // Create a test item that simulates a file
11409        let item = cx.new(|cx| {
11410            TestItem::new(cx)
11411                .with_label("test.txt")
11412                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11413        });
11414
11415        // Add item to workspace
11416        workspace.update_in(cx, |workspace, window, cx| {
11417            workspace.add_item(
11418                pane.clone(),
11419                Box::new(item.clone()),
11420                None,
11421                false,
11422                false,
11423                window,
11424                cx,
11425            );
11426        });
11427
11428        // Verify the item is in the pane
11429        pane.read_with(cx, |pane, _| {
11430            assert_eq!(pane.items().count(), 1);
11431        });
11432
11433        // Simulate file deletion by setting the item's deleted state
11434        item.update(cx, |item, _| {
11435            item.set_has_deleted_file(true);
11436        });
11437
11438        // Emit UpdateTab event to trigger the close behavior
11439        cx.run_until_parked();
11440        item.update(cx, |_, cx| {
11441            cx.emit(ItemEvent::UpdateTab);
11442        });
11443
11444        // Allow the close operation to complete
11445        cx.run_until_parked();
11446
11447        // Verify the item was automatically closed
11448        pane.read_with(cx, |pane, _| {
11449            assert_eq!(
11450                pane.items().count(),
11451                0,
11452                "Item should be automatically closed when file is deleted"
11453            );
11454        });
11455    }
11456
11457    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11458    /// open with a strikethrough when they are deleted from disk.
11459    #[gpui::test]
11460    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11461        init_test(cx);
11462
11463        // Ensure close_on_disk_deletion is disabled (default)
11464        cx.update_global(|store: &mut SettingsStore, cx| {
11465            store.update_user_settings(cx, |settings| {
11466                settings.workspace.close_on_file_delete = Some(false);
11467            });
11468        });
11469
11470        let fs = FakeFs::new(cx.background_executor.clone());
11471        let project = Project::test(fs, [], cx).await;
11472        let (workspace, cx) =
11473            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11474        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11475
11476        // Create a test item that simulates a file
11477        let item = cx.new(|cx| {
11478            TestItem::new(cx)
11479                .with_label("test.txt")
11480                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11481        });
11482
11483        // Add item to workspace
11484        workspace.update_in(cx, |workspace, window, cx| {
11485            workspace.add_item(
11486                pane.clone(),
11487                Box::new(item.clone()),
11488                None,
11489                false,
11490                false,
11491                window,
11492                cx,
11493            );
11494        });
11495
11496        // Verify the item is in the pane
11497        pane.read_with(cx, |pane, _| {
11498            assert_eq!(pane.items().count(), 1);
11499        });
11500
11501        // Simulate file deletion
11502        item.update(cx, |item, _| {
11503            item.set_has_deleted_file(true);
11504        });
11505
11506        // Emit UpdateTab event
11507        cx.run_until_parked();
11508        item.update(cx, |_, cx| {
11509            cx.emit(ItemEvent::UpdateTab);
11510        });
11511
11512        // Allow any potential close operation to complete
11513        cx.run_until_parked();
11514
11515        // Verify the item remains open (with strikethrough)
11516        pane.read_with(cx, |pane, _| {
11517            assert_eq!(
11518                pane.items().count(),
11519                1,
11520                "Item should remain open when close_on_disk_deletion is disabled"
11521            );
11522        });
11523
11524        // Verify the item shows as deleted
11525        item.read_with(cx, |item, _| {
11526            assert!(
11527                item.has_deleted_file,
11528                "Item should be marked as having deleted file"
11529            );
11530        });
11531    }
11532
11533    /// Tests that dirty files are not automatically closed when deleted from disk,
11534    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11535    /// unsaved changes without being prompted.
11536    #[gpui::test]
11537    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11538        init_test(cx);
11539
11540        // Enable the close_on_file_delete setting
11541        cx.update_global(|store: &mut SettingsStore, cx| {
11542            store.update_user_settings(cx, |settings| {
11543                settings.workspace.close_on_file_delete = Some(true);
11544            });
11545        });
11546
11547        let fs = FakeFs::new(cx.background_executor.clone());
11548        let project = Project::test(fs, [], cx).await;
11549        let (workspace, cx) =
11550            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11551        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11552
11553        // Create a dirty test item
11554        let item = cx.new(|cx| {
11555            TestItem::new(cx)
11556                .with_dirty(true)
11557                .with_label("test.txt")
11558                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11559        });
11560
11561        // Add item to workspace
11562        workspace.update_in(cx, |workspace, window, cx| {
11563            workspace.add_item(
11564                pane.clone(),
11565                Box::new(item.clone()),
11566                None,
11567                false,
11568                false,
11569                window,
11570                cx,
11571            );
11572        });
11573
11574        // Simulate file deletion
11575        item.update(cx, |item, _| {
11576            item.set_has_deleted_file(true);
11577        });
11578
11579        // Emit UpdateTab event to trigger the close behavior
11580        cx.run_until_parked();
11581        item.update(cx, |_, cx| {
11582            cx.emit(ItemEvent::UpdateTab);
11583        });
11584
11585        // Allow any potential close operation to complete
11586        cx.run_until_parked();
11587
11588        // Verify the item remains open (dirty files are not auto-closed)
11589        pane.read_with(cx, |pane, _| {
11590            assert_eq!(
11591                pane.items().count(),
11592                1,
11593                "Dirty items should not be automatically closed even when file is deleted"
11594            );
11595        });
11596
11597        // Verify the item is marked as deleted and still dirty
11598        item.read_with(cx, |item, _| {
11599            assert!(
11600                item.has_deleted_file,
11601                "Item should be marked as having deleted file"
11602            );
11603            assert!(item.is_dirty, "Item should still be dirty");
11604        });
11605    }
11606
11607    /// Tests that navigation history is cleaned up when files are auto-closed
11608    /// due to deletion from disk.
11609    #[gpui::test]
11610    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11611        init_test(cx);
11612
11613        // Enable the close_on_file_delete setting
11614        cx.update_global(|store: &mut SettingsStore, cx| {
11615            store.update_user_settings(cx, |settings| {
11616                settings.workspace.close_on_file_delete = Some(true);
11617            });
11618        });
11619
11620        let fs = FakeFs::new(cx.background_executor.clone());
11621        let project = Project::test(fs, [], cx).await;
11622        let (workspace, cx) =
11623            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11624        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11625
11626        // Create test items
11627        let item1 = cx.new(|cx| {
11628            TestItem::new(cx)
11629                .with_label("test1.txt")
11630                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11631        });
11632        let item1_id = item1.item_id();
11633
11634        let item2 = cx.new(|cx| {
11635            TestItem::new(cx)
11636                .with_label("test2.txt")
11637                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11638        });
11639
11640        // Add items to workspace
11641        workspace.update_in(cx, |workspace, window, cx| {
11642            workspace.add_item(
11643                pane.clone(),
11644                Box::new(item1.clone()),
11645                None,
11646                false,
11647                false,
11648                window,
11649                cx,
11650            );
11651            workspace.add_item(
11652                pane.clone(),
11653                Box::new(item2.clone()),
11654                None,
11655                false,
11656                false,
11657                window,
11658                cx,
11659            );
11660        });
11661
11662        // Activate item1 to ensure it gets navigation entries
11663        pane.update_in(cx, |pane, window, cx| {
11664            pane.activate_item(0, true, true, window, cx);
11665        });
11666
11667        // Switch to item2 and back to create navigation history
11668        pane.update_in(cx, |pane, window, cx| {
11669            pane.activate_item(1, true, true, window, cx);
11670        });
11671        cx.run_until_parked();
11672
11673        pane.update_in(cx, |pane, window, cx| {
11674            pane.activate_item(0, true, true, window, cx);
11675        });
11676        cx.run_until_parked();
11677
11678        // Simulate file deletion for item1
11679        item1.update(cx, |item, _| {
11680            item.set_has_deleted_file(true);
11681        });
11682
11683        // Emit UpdateTab event to trigger the close behavior
11684        item1.update(cx, |_, cx| {
11685            cx.emit(ItemEvent::UpdateTab);
11686        });
11687        cx.run_until_parked();
11688
11689        // Verify item1 was closed
11690        pane.read_with(cx, |pane, _| {
11691            assert_eq!(
11692                pane.items().count(),
11693                1,
11694                "Should have 1 item remaining after auto-close"
11695            );
11696        });
11697
11698        // Check navigation history after close
11699        let has_item = pane.read_with(cx, |pane, cx| {
11700            let mut has_item = false;
11701            pane.nav_history().for_each_entry(cx, |entry, _| {
11702                if entry.item.id() == item1_id {
11703                    has_item = true;
11704                }
11705            });
11706            has_item
11707        });
11708
11709        assert!(
11710            !has_item,
11711            "Navigation history should not contain closed item entries"
11712        );
11713    }
11714
11715    #[gpui::test]
11716    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11717        cx: &mut TestAppContext,
11718    ) {
11719        init_test(cx);
11720
11721        let fs = FakeFs::new(cx.background_executor.clone());
11722        let project = Project::test(fs, [], cx).await;
11723        let (workspace, cx) =
11724            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11725        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11726
11727        let dirty_regular_buffer = cx.new(|cx| {
11728            TestItem::new(cx)
11729                .with_dirty(true)
11730                .with_label("1.txt")
11731                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11732        });
11733        let dirty_regular_buffer_2 = cx.new(|cx| {
11734            TestItem::new(cx)
11735                .with_dirty(true)
11736                .with_label("2.txt")
11737                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11738        });
11739        let clear_regular_buffer = cx.new(|cx| {
11740            TestItem::new(cx)
11741                .with_label("3.txt")
11742                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11743        });
11744
11745        let dirty_multi_buffer = cx.new(|cx| {
11746            TestItem::new(cx)
11747                .with_dirty(true)
11748                .with_buffer_kind(ItemBufferKind::Multibuffer)
11749                .with_label("Fake Project Search")
11750                .with_project_items(&[
11751                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11752                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11753                    clear_regular_buffer.read(cx).project_items[0].clone(),
11754                ])
11755        });
11756        workspace.update_in(cx, |workspace, window, cx| {
11757            workspace.add_item(
11758                pane.clone(),
11759                Box::new(dirty_regular_buffer.clone()),
11760                None,
11761                false,
11762                false,
11763                window,
11764                cx,
11765            );
11766            workspace.add_item(
11767                pane.clone(),
11768                Box::new(dirty_regular_buffer_2.clone()),
11769                None,
11770                false,
11771                false,
11772                window,
11773                cx,
11774            );
11775            workspace.add_item(
11776                pane.clone(),
11777                Box::new(dirty_multi_buffer.clone()),
11778                None,
11779                false,
11780                false,
11781                window,
11782                cx,
11783            );
11784        });
11785
11786        pane.update_in(cx, |pane, window, cx| {
11787            pane.activate_item(2, true, true, window, cx);
11788            assert_eq!(
11789                pane.active_item().unwrap().item_id(),
11790                dirty_multi_buffer.item_id(),
11791                "Should select the multi buffer in the pane"
11792            );
11793        });
11794        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11795            pane.close_active_item(
11796                &CloseActiveItem {
11797                    save_intent: None,
11798                    close_pinned: false,
11799                },
11800                window,
11801                cx,
11802            )
11803        });
11804        cx.background_executor.run_until_parked();
11805        assert!(
11806            !cx.has_pending_prompt(),
11807            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11808        );
11809        close_multi_buffer_task
11810            .await
11811            .expect("Closing multi buffer failed");
11812        pane.update(cx, |pane, cx| {
11813            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11814            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11815            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11816            assert_eq!(
11817                pane.items()
11818                    .map(|item| item.item_id())
11819                    .sorted()
11820                    .collect::<Vec<_>>(),
11821                vec![
11822                    dirty_regular_buffer.item_id(),
11823                    dirty_regular_buffer_2.item_id(),
11824                ],
11825                "Should have no multi buffer left in the pane"
11826            );
11827            assert!(dirty_regular_buffer.read(cx).is_dirty);
11828            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11829        });
11830    }
11831
11832    #[gpui::test]
11833    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11834        init_test(cx);
11835        let fs = FakeFs::new(cx.executor());
11836        let project = Project::test(fs, [], cx).await;
11837        let (workspace, cx) =
11838            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11839
11840        // Add a new panel to the right dock, opening the dock and setting the
11841        // focus to the new panel.
11842        let panel = workspace.update_in(cx, |workspace, window, cx| {
11843            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11844            workspace.add_panel(panel.clone(), window, cx);
11845
11846            workspace
11847                .right_dock()
11848                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11849
11850            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11851
11852            panel
11853        });
11854
11855        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11856        // panel to the next valid position which, in this case, is the left
11857        // dock.
11858        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11859        workspace.update(cx, |workspace, cx| {
11860            assert!(workspace.left_dock().read(cx).is_open());
11861            assert_eq!(panel.read(cx).position, DockPosition::Left);
11862        });
11863
11864        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11865        // panel to the next valid position which, in this case, is the bottom
11866        // dock.
11867        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11868        workspace.update(cx, |workspace, cx| {
11869            assert!(workspace.bottom_dock().read(cx).is_open());
11870            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11871        });
11872
11873        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11874        // around moving the panel to its initial position, the right dock.
11875        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11876        workspace.update(cx, |workspace, cx| {
11877            assert!(workspace.right_dock().read(cx).is_open());
11878            assert_eq!(panel.read(cx).position, DockPosition::Right);
11879        });
11880
11881        // Remove focus from the panel, ensuring that, if the panel is not
11882        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11883        // the panel's position, so the panel is still in the right dock.
11884        workspace.update_in(cx, |workspace, window, cx| {
11885            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11886        });
11887
11888        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11889        workspace.update(cx, |workspace, cx| {
11890            assert!(workspace.right_dock().read(cx).is_open());
11891            assert_eq!(panel.read(cx).position, DockPosition::Right);
11892        });
11893    }
11894
11895    #[gpui::test]
11896    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11897        init_test(cx);
11898
11899        let fs = FakeFs::new(cx.executor());
11900        let project = Project::test(fs, [], cx).await;
11901        let (workspace, cx) =
11902            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11903
11904        let item_1 = cx.new(|cx| {
11905            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11906        });
11907        workspace.update_in(cx, |workspace, window, cx| {
11908            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11909            workspace.move_item_to_pane_in_direction(
11910                &MoveItemToPaneInDirection {
11911                    direction: SplitDirection::Right,
11912                    focus: true,
11913                    clone: false,
11914                },
11915                window,
11916                cx,
11917            );
11918            workspace.move_item_to_pane_at_index(
11919                &MoveItemToPane {
11920                    destination: 3,
11921                    focus: true,
11922                    clone: false,
11923                },
11924                window,
11925                cx,
11926            );
11927
11928            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11929            assert_eq!(
11930                pane_items_paths(&workspace.active_pane, cx),
11931                vec!["first.txt".to_string()],
11932                "Single item was not moved anywhere"
11933            );
11934        });
11935
11936        let item_2 = cx.new(|cx| {
11937            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11938        });
11939        workspace.update_in(cx, |workspace, window, cx| {
11940            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11941            assert_eq!(
11942                pane_items_paths(&workspace.panes[0], cx),
11943                vec!["first.txt".to_string(), "second.txt".to_string()],
11944            );
11945            workspace.move_item_to_pane_in_direction(
11946                &MoveItemToPaneInDirection {
11947                    direction: SplitDirection::Right,
11948                    focus: true,
11949                    clone: false,
11950                },
11951                window,
11952                cx,
11953            );
11954
11955            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11956            assert_eq!(
11957                pane_items_paths(&workspace.panes[0], cx),
11958                vec!["first.txt".to_string()],
11959                "After moving, one item should be left in the original pane"
11960            );
11961            assert_eq!(
11962                pane_items_paths(&workspace.panes[1], cx),
11963                vec!["second.txt".to_string()],
11964                "New item should have been moved to the new pane"
11965            );
11966        });
11967
11968        let item_3 = cx.new(|cx| {
11969            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11970        });
11971        workspace.update_in(cx, |workspace, window, cx| {
11972            let original_pane = workspace.panes[0].clone();
11973            workspace.set_active_pane(&original_pane, window, cx);
11974            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11975            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11976            assert_eq!(
11977                pane_items_paths(&workspace.active_pane, cx),
11978                vec!["first.txt".to_string(), "third.txt".to_string()],
11979                "New pane should be ready to move one item out"
11980            );
11981
11982            workspace.move_item_to_pane_at_index(
11983                &MoveItemToPane {
11984                    destination: 3,
11985                    focus: true,
11986                    clone: false,
11987                },
11988                window,
11989                cx,
11990            );
11991            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11992            assert_eq!(
11993                pane_items_paths(&workspace.active_pane, cx),
11994                vec!["first.txt".to_string()],
11995                "After moving, one item should be left in the original pane"
11996            );
11997            assert_eq!(
11998                pane_items_paths(&workspace.panes[1], cx),
11999                vec!["second.txt".to_string()],
12000                "Previously created pane should be unchanged"
12001            );
12002            assert_eq!(
12003                pane_items_paths(&workspace.panes[2], cx),
12004                vec!["third.txt".to_string()],
12005                "New item should have been moved to the new pane"
12006            );
12007        });
12008    }
12009
12010    #[gpui::test]
12011    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
12012        init_test(cx);
12013
12014        let fs = FakeFs::new(cx.executor());
12015        let project = Project::test(fs, [], cx).await;
12016        let (workspace, cx) =
12017            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12018
12019        let item_1 = cx.new(|cx| {
12020            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12021        });
12022        workspace.update_in(cx, |workspace, window, cx| {
12023            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12024            workspace.move_item_to_pane_in_direction(
12025                &MoveItemToPaneInDirection {
12026                    direction: SplitDirection::Right,
12027                    focus: true,
12028                    clone: true,
12029                },
12030                window,
12031                cx,
12032            );
12033        });
12034        cx.run_until_parked();
12035        workspace.update_in(cx, |workspace, window, cx| {
12036            workspace.move_item_to_pane_at_index(
12037                &MoveItemToPane {
12038                    destination: 3,
12039                    focus: true,
12040                    clone: true,
12041                },
12042                window,
12043                cx,
12044            );
12045        });
12046        cx.run_until_parked();
12047
12048        workspace.update(cx, |workspace, cx| {
12049            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
12050            for pane in workspace.panes() {
12051                assert_eq!(
12052                    pane_items_paths(pane, cx),
12053                    vec!["first.txt".to_string()],
12054                    "Single item exists in all panes"
12055                );
12056            }
12057        });
12058
12059        // verify that the active pane has been updated after waiting for the
12060        // pane focus event to fire and resolve
12061        workspace.read_with(cx, |workspace, _app| {
12062            assert_eq!(
12063                workspace.active_pane(),
12064                &workspace.panes[2],
12065                "The third pane should be the active one: {:?}",
12066                workspace.panes
12067            );
12068        })
12069    }
12070
12071    mod register_project_item_tests {
12072
12073        use super::*;
12074
12075        // View
12076        struct TestPngItemView {
12077            focus_handle: FocusHandle,
12078        }
12079        // Model
12080        struct TestPngItem {}
12081
12082        impl project::ProjectItem for TestPngItem {
12083            fn try_open(
12084                _project: &Entity<Project>,
12085                path: &ProjectPath,
12086                cx: &mut App,
12087            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12088                if path.path.extension().unwrap() == "png" {
12089                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
12090                } else {
12091                    None
12092                }
12093            }
12094
12095            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12096                None
12097            }
12098
12099            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12100                None
12101            }
12102
12103            fn is_dirty(&self) -> bool {
12104                false
12105            }
12106        }
12107
12108        impl Item for TestPngItemView {
12109            type Event = ();
12110            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12111                "".into()
12112            }
12113        }
12114        impl EventEmitter<()> for TestPngItemView {}
12115        impl Focusable for TestPngItemView {
12116            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12117                self.focus_handle.clone()
12118            }
12119        }
12120
12121        impl Render for TestPngItemView {
12122            fn render(
12123                &mut self,
12124                _window: &mut Window,
12125                _cx: &mut Context<Self>,
12126            ) -> impl IntoElement {
12127                Empty
12128            }
12129        }
12130
12131        impl ProjectItem for TestPngItemView {
12132            type Item = TestPngItem;
12133
12134            fn for_project_item(
12135                _project: Entity<Project>,
12136                _pane: Option<&Pane>,
12137                _item: Entity<Self::Item>,
12138                _: &mut Window,
12139                cx: &mut Context<Self>,
12140            ) -> Self
12141            where
12142                Self: Sized,
12143            {
12144                Self {
12145                    focus_handle: cx.focus_handle(),
12146                }
12147            }
12148        }
12149
12150        // View
12151        struct TestIpynbItemView {
12152            focus_handle: FocusHandle,
12153        }
12154        // Model
12155        struct TestIpynbItem {}
12156
12157        impl project::ProjectItem for TestIpynbItem {
12158            fn try_open(
12159                _project: &Entity<Project>,
12160                path: &ProjectPath,
12161                cx: &mut App,
12162            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12163                if path.path.extension().unwrap() == "ipynb" {
12164                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
12165                } else {
12166                    None
12167                }
12168            }
12169
12170            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12171                None
12172            }
12173
12174            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12175                None
12176            }
12177
12178            fn is_dirty(&self) -> bool {
12179                false
12180            }
12181        }
12182
12183        impl Item for TestIpynbItemView {
12184            type Event = ();
12185            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12186                "".into()
12187            }
12188        }
12189        impl EventEmitter<()> for TestIpynbItemView {}
12190        impl Focusable for TestIpynbItemView {
12191            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12192                self.focus_handle.clone()
12193            }
12194        }
12195
12196        impl Render for TestIpynbItemView {
12197            fn render(
12198                &mut self,
12199                _window: &mut Window,
12200                _cx: &mut Context<Self>,
12201            ) -> impl IntoElement {
12202                Empty
12203            }
12204        }
12205
12206        impl ProjectItem for TestIpynbItemView {
12207            type Item = TestIpynbItem;
12208
12209            fn for_project_item(
12210                _project: Entity<Project>,
12211                _pane: Option<&Pane>,
12212                _item: Entity<Self::Item>,
12213                _: &mut Window,
12214                cx: &mut Context<Self>,
12215            ) -> Self
12216            where
12217                Self: Sized,
12218            {
12219                Self {
12220                    focus_handle: cx.focus_handle(),
12221                }
12222            }
12223        }
12224
12225        struct TestAlternatePngItemView {
12226            focus_handle: FocusHandle,
12227        }
12228
12229        impl Item for TestAlternatePngItemView {
12230            type Event = ();
12231            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12232                "".into()
12233            }
12234        }
12235
12236        impl EventEmitter<()> for TestAlternatePngItemView {}
12237        impl Focusable for TestAlternatePngItemView {
12238            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12239                self.focus_handle.clone()
12240            }
12241        }
12242
12243        impl Render for TestAlternatePngItemView {
12244            fn render(
12245                &mut self,
12246                _window: &mut Window,
12247                _cx: &mut Context<Self>,
12248            ) -> impl IntoElement {
12249                Empty
12250            }
12251        }
12252
12253        impl ProjectItem for TestAlternatePngItemView {
12254            type Item = TestPngItem;
12255
12256            fn for_project_item(
12257                _project: Entity<Project>,
12258                _pane: Option<&Pane>,
12259                _item: Entity<Self::Item>,
12260                _: &mut Window,
12261                cx: &mut Context<Self>,
12262            ) -> Self
12263            where
12264                Self: Sized,
12265            {
12266                Self {
12267                    focus_handle: cx.focus_handle(),
12268                }
12269            }
12270        }
12271
12272        #[gpui::test]
12273        async fn test_register_project_item(cx: &mut TestAppContext) {
12274            init_test(cx);
12275
12276            cx.update(|cx| {
12277                register_project_item::<TestPngItemView>(cx);
12278                register_project_item::<TestIpynbItemView>(cx);
12279            });
12280
12281            let fs = FakeFs::new(cx.executor());
12282            fs.insert_tree(
12283                "/root1",
12284                json!({
12285                    "one.png": "BINARYDATAHERE",
12286                    "two.ipynb": "{ totally a notebook }",
12287                    "three.txt": "editing text, sure why not?"
12288                }),
12289            )
12290            .await;
12291
12292            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12293            let (workspace, cx) =
12294                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12295
12296            let worktree_id = project.update(cx, |project, cx| {
12297                project.worktrees(cx).next().unwrap().read(cx).id()
12298            });
12299
12300            let handle = workspace
12301                .update_in(cx, |workspace, window, cx| {
12302                    let project_path = (worktree_id, rel_path("one.png"));
12303                    workspace.open_path(project_path, None, true, window, cx)
12304                })
12305                .await
12306                .unwrap();
12307
12308            // Now we can check if the handle we got back errored or not
12309            assert_eq!(
12310                handle.to_any_view().entity_type(),
12311                TypeId::of::<TestPngItemView>()
12312            );
12313
12314            let handle = workspace
12315                .update_in(cx, |workspace, window, cx| {
12316                    let project_path = (worktree_id, rel_path("two.ipynb"));
12317                    workspace.open_path(project_path, None, true, window, cx)
12318                })
12319                .await
12320                .unwrap();
12321
12322            assert_eq!(
12323                handle.to_any_view().entity_type(),
12324                TypeId::of::<TestIpynbItemView>()
12325            );
12326
12327            let handle = workspace
12328                .update_in(cx, |workspace, window, cx| {
12329                    let project_path = (worktree_id, rel_path("three.txt"));
12330                    workspace.open_path(project_path, None, true, window, cx)
12331                })
12332                .await;
12333            assert!(handle.is_err());
12334        }
12335
12336        #[gpui::test]
12337        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
12338            init_test(cx);
12339
12340            cx.update(|cx| {
12341                register_project_item::<TestPngItemView>(cx);
12342                register_project_item::<TestAlternatePngItemView>(cx);
12343            });
12344
12345            let fs = FakeFs::new(cx.executor());
12346            fs.insert_tree(
12347                "/root1",
12348                json!({
12349                    "one.png": "BINARYDATAHERE",
12350                    "two.ipynb": "{ totally a notebook }",
12351                    "three.txt": "editing text, sure why not?"
12352                }),
12353            )
12354            .await;
12355            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12356            let (workspace, cx) =
12357                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12358            let worktree_id = project.update(cx, |project, cx| {
12359                project.worktrees(cx).next().unwrap().read(cx).id()
12360            });
12361
12362            let handle = workspace
12363                .update_in(cx, |workspace, window, cx| {
12364                    let project_path = (worktree_id, rel_path("one.png"));
12365                    workspace.open_path(project_path, None, true, window, cx)
12366                })
12367                .await
12368                .unwrap();
12369
12370            // This _must_ be the second item registered
12371            assert_eq!(
12372                handle.to_any_view().entity_type(),
12373                TypeId::of::<TestAlternatePngItemView>()
12374            );
12375
12376            let handle = workspace
12377                .update_in(cx, |workspace, window, cx| {
12378                    let project_path = (worktree_id, rel_path("three.txt"));
12379                    workspace.open_path(project_path, None, true, window, cx)
12380                })
12381                .await;
12382            assert!(handle.is_err());
12383        }
12384    }
12385
12386    #[gpui::test]
12387    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
12388        init_test(cx);
12389
12390        let fs = FakeFs::new(cx.executor());
12391        let project = Project::test(fs, [], cx).await;
12392        let (workspace, _cx) =
12393            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12394
12395        // Test with status bar shown (default)
12396        workspace.read_with(cx, |workspace, cx| {
12397            let visible = workspace.status_bar_visible(cx);
12398            assert!(visible, "Status bar should be visible by default");
12399        });
12400
12401        // Test with status bar hidden
12402        cx.update_global(|store: &mut SettingsStore, cx| {
12403            store.update_user_settings(cx, |settings| {
12404                settings.status_bar.get_or_insert_default().show = Some(false);
12405            });
12406        });
12407
12408        workspace.read_with(cx, |workspace, cx| {
12409            let visible = workspace.status_bar_visible(cx);
12410            assert!(!visible, "Status bar should be hidden when show is false");
12411        });
12412
12413        // Test with status bar shown explicitly
12414        cx.update_global(|store: &mut SettingsStore, cx| {
12415            store.update_user_settings(cx, |settings| {
12416                settings.status_bar.get_or_insert_default().show = Some(true);
12417            });
12418        });
12419
12420        workspace.read_with(cx, |workspace, cx| {
12421            let visible = workspace.status_bar_visible(cx);
12422            assert!(visible, "Status bar should be visible when show is true");
12423        });
12424    }
12425
12426    #[gpui::test]
12427    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
12428        init_test(cx);
12429
12430        let fs = FakeFs::new(cx.executor());
12431        let project = Project::test(fs, [], cx).await;
12432        let (workspace, cx) =
12433            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12434        let panel = workspace.update_in(cx, |workspace, window, cx| {
12435            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12436            workspace.add_panel(panel.clone(), window, cx);
12437
12438            workspace
12439                .right_dock()
12440                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12441
12442            panel
12443        });
12444
12445        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12446        let item_a = cx.new(TestItem::new);
12447        let item_b = cx.new(TestItem::new);
12448        let item_a_id = item_a.entity_id();
12449        let item_b_id = item_b.entity_id();
12450
12451        pane.update_in(cx, |pane, window, cx| {
12452            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
12453            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12454        });
12455
12456        pane.read_with(cx, |pane, _| {
12457            assert_eq!(pane.items_len(), 2);
12458            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
12459        });
12460
12461        workspace.update_in(cx, |workspace, window, cx| {
12462            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12463        });
12464
12465        workspace.update_in(cx, |_, window, cx| {
12466            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12467        });
12468
12469        // Assert that the `pane::CloseActiveItem` action is handled at the
12470        // workspace level when one of the dock panels is focused and, in that
12471        // case, the center pane's active item is closed but the focus is not
12472        // moved.
12473        cx.dispatch_action(pane::CloseActiveItem::default());
12474        cx.run_until_parked();
12475
12476        pane.read_with(cx, |pane, _| {
12477            assert_eq!(pane.items_len(), 1);
12478            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
12479        });
12480
12481        workspace.update_in(cx, |workspace, window, cx| {
12482            assert!(workspace.right_dock().read(cx).is_open());
12483            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12484        });
12485    }
12486
12487    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
12488        pane.read(cx)
12489            .items()
12490            .flat_map(|item| {
12491                item.project_paths(cx)
12492                    .into_iter()
12493                    .map(|path| path.path.display(PathStyle::local()).into_owned())
12494            })
12495            .collect()
12496    }
12497
12498    pub fn init_test(cx: &mut TestAppContext) {
12499        cx.update(|cx| {
12500            let settings_store = SettingsStore::test(cx);
12501            cx.set_global(settings_store);
12502            theme::init(theme::LoadThemes::JustBase, cx);
12503        });
12504    }
12505
12506    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
12507        let item = TestProjectItem::new(id, path, cx);
12508        item.update(cx, |item, _| {
12509            item.is_dirty = true;
12510        });
12511        item
12512    }
12513}