workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6mod multi_workspace;
    7pub mod notifications;
    8pub mod pane;
    9pub mod pane_group;
   10mod path_list;
   11mod persistence;
   12pub mod searchable;
   13mod security_modal;
   14pub mod shared_screen;
   15mod status_bar;
   16pub mod tasks;
   17mod theme_preview;
   18mod toast_layer;
   19mod toolbar;
   20pub mod utility_pane;
   21pub mod welcome;
   22mod workspace_settings;
   23
   24pub use crate::notifications::NotificationFrame;
   25pub use dock::Panel;
   26pub use multi_workspace::{
   27    DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace, NewWorkspaceInWindow,
   28    NextWorkspaceInWindow, PreviousWorkspaceInWindow, Sidebar, SidebarEvent, SidebarHandle,
   29    ToggleWorkspaceSidebar,
   30};
   31pub use path_list::PathList;
   32pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   33
   34use anyhow::{Context as _, Result, anyhow};
   35use call::{ActiveCall, call_settings::CallSettings};
   36use client::{
   37    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   38    proto::{self, ErrorCode, PanelId, PeerId},
   39};
   40use collections::{HashMap, HashSet, hash_map};
   41use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   42use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   43use futures::{
   44    Future, FutureExt, StreamExt,
   45    channel::{
   46        mpsc::{self, UnboundedReceiver, UnboundedSender},
   47        oneshot,
   48    },
   49    future::{Shared, try_join_all},
   50};
   51use gpui::{
   52    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   53    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   54    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   55    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   56    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   57    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   58};
   59pub use history_manager::*;
   60pub use item::{
   61    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   62    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   63};
   64use itertools::Itertools;
   65use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   66pub use modal_layer::*;
   67use node_runtime::NodeRuntime;
   68use notifications::{
   69    DetachAndPromptErr, Notifications, dismiss_app_notification,
   70    simple_message_notification::MessageNotification,
   71};
   72pub use pane::*;
   73pub use pane_group::{
   74    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   75    SplitDirection,
   76};
   77use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   78pub use persistence::{
   79    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   80    model::{ItemId, SerializedMultiWorkspace, SerializedWorkspaceLocation, SessionWorkspace},
   81    read_serialized_multi_workspaces,
   82};
   83use postage::stream::Stream;
   84use project::{
   85    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   86    WorktreeSettings,
   87    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   88    project_settings::ProjectSettings,
   89    toolchain_store::ToolchainStoreEvent,
   90    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   91};
   92use remote::{
   93    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   94    remote_client::ConnectionIdentifier,
   95};
   96use schemars::JsonSchema;
   97use serde::Deserialize;
   98use session::AppSession;
   99use settings::{
  100    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  101};
  102use shared_screen::SharedScreen;
  103use sqlez::{
  104    bindable::{Bind, Column, StaticColumnCount},
  105    statement::Statement,
  106};
  107use status_bar::StatusBar;
  108pub use status_bar::StatusItemView;
  109use std::{
  110    any::TypeId,
  111    borrow::Cow,
  112    cell::RefCell,
  113    cmp,
  114    collections::VecDeque,
  115    env,
  116    hash::Hash,
  117    path::{Path, PathBuf},
  118    process::ExitStatus,
  119    rc::Rc,
  120    sync::{
  121        Arc, LazyLock, Weak,
  122        atomic::{AtomicBool, AtomicUsize},
  123    },
  124    time::Duration,
  125};
  126use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  127use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  128pub use toolbar::{
  129    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  130};
  131pub use ui;
  132use ui::{Window, prelude::*};
  133use util::{
  134    ResultExt, TryFutureExt,
  135    paths::{PathStyle, SanitizedPath},
  136    rel_path::RelPath,
  137    serde::default_true,
  138};
  139use uuid::Uuid;
  140pub use workspace_settings::{
  141    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  142    WorkspaceSettings,
  143};
  144use zed_actions::{Spawn, feedback::FileBugReport};
  145
  146use crate::{
  147    item::ItemBufferKind,
  148    notifications::NotificationId,
  149    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  150};
  151use crate::{
  152    persistence::{
  153        SerializedAxis,
  154        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  155    },
  156    security_modal::SecurityModal,
  157    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  158};
  159
  160pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  161
  162static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  163    env::var("ZED_WINDOW_SIZE")
  164        .ok()
  165        .as_deref()
  166        .and_then(parse_pixel_size_env_var)
  167});
  168
  169static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  170    env::var("ZED_WINDOW_POSITION")
  171        .ok()
  172        .as_deref()
  173        .and_then(parse_pixel_position_env_var)
  174});
  175
  176pub trait TerminalProvider {
  177    fn spawn(
  178        &self,
  179        task: SpawnInTerminal,
  180        window: &mut Window,
  181        cx: &mut App,
  182    ) -> Task<Option<Result<ExitStatus>>>;
  183}
  184
  185pub trait DebuggerProvider {
  186    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  187    fn start_session(
  188        &self,
  189        definition: DebugScenario,
  190        task_context: SharedTaskContext,
  191        active_buffer: Option<Entity<Buffer>>,
  192        worktree_id: Option<WorktreeId>,
  193        window: &mut Window,
  194        cx: &mut App,
  195    );
  196
  197    fn spawn_task_or_modal(
  198        &self,
  199        workspace: &mut Workspace,
  200        action: &Spawn,
  201        window: &mut Window,
  202        cx: &mut Context<Workspace>,
  203    );
  204
  205    fn task_scheduled(&self, cx: &mut App);
  206    fn debug_scenario_scheduled(&self, cx: &mut App);
  207    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  208
  209    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  210}
  211
  212actions!(
  213    workspace,
  214    [
  215        /// Activates the next pane in the workspace.
  216        ActivateNextPane,
  217        /// Activates the previous pane in the workspace.
  218        ActivatePreviousPane,
  219        /// Switches to the next window.
  220        ActivateNextWindow,
  221        /// Switches to the previous window.
  222        ActivatePreviousWindow,
  223        /// Adds a folder to the current project.
  224        AddFolderToProject,
  225        /// Clears all notifications.
  226        ClearAllNotifications,
  227        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  228        ClearNavigationHistory,
  229        /// Closes the active dock.
  230        CloseActiveDock,
  231        /// Closes all docks.
  232        CloseAllDocks,
  233        /// Toggles all docks.
  234        ToggleAllDocks,
  235        /// Closes the current window.
  236        CloseWindow,
  237        /// Closes the current project.
  238        CloseProject,
  239        /// Opens the feedback dialog.
  240        Feedback,
  241        /// Follows the next collaborator in the session.
  242        FollowNextCollaborator,
  243        /// Moves the focused panel to the next position.
  244        MoveFocusedPanelToNextPosition,
  245        /// Creates a new file.
  246        NewFile,
  247        /// Creates a new file in a vertical split.
  248        NewFileSplitVertical,
  249        /// Creates a new file in a horizontal split.
  250        NewFileSplitHorizontal,
  251        /// Opens a new search.
  252        NewSearch,
  253        /// Opens a new window.
  254        NewWindow,
  255        /// Opens a file or directory.
  256        Open,
  257        /// Opens multiple files.
  258        OpenFiles,
  259        /// Opens the current location in terminal.
  260        OpenInTerminal,
  261        /// Opens the component preview.
  262        OpenComponentPreview,
  263        /// Reloads the active item.
  264        ReloadActiveItem,
  265        /// Resets the active dock to its default size.
  266        ResetActiveDockSize,
  267        /// Resets all open docks to their default sizes.
  268        ResetOpenDocksSize,
  269        /// Reloads the application
  270        Reload,
  271        /// Saves the current file with a new name.
  272        SaveAs,
  273        /// Saves without formatting.
  274        SaveWithoutFormat,
  275        /// Shuts down all debug adapters.
  276        ShutdownDebugAdapters,
  277        /// Suppresses the current notification.
  278        SuppressNotification,
  279        /// Toggles the bottom dock.
  280        ToggleBottomDock,
  281        /// Toggles centered layout mode.
  282        ToggleCenteredLayout,
  283        /// Toggles edit prediction feature globally for all files.
  284        ToggleEditPrediction,
  285        /// Toggles the left dock.
  286        ToggleLeftDock,
  287        /// Toggles the right dock.
  288        ToggleRightDock,
  289        /// Toggles zoom on the active pane.
  290        ToggleZoom,
  291        /// Toggles read-only mode for the active item (if supported by that item).
  292        ToggleReadOnlyFile,
  293        /// Zooms in on the active pane.
  294        ZoomIn,
  295        /// Zooms out of the active pane.
  296        ZoomOut,
  297        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  298        /// If the modal is shown already, closes it without trusting any worktree.
  299        ToggleWorktreeSecurity,
  300        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  301        /// Requires restart to take effect on already opened projects.
  302        ClearTrustedWorktrees,
  303        /// Stops following a collaborator.
  304        Unfollow,
  305        /// Restores the banner.
  306        RestoreBanner,
  307        /// Toggles expansion of the selected item.
  308        ToggleExpandItem,
  309    ]
  310);
  311
  312/// Activates a specific pane by its index.
  313#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  314#[action(namespace = workspace)]
  315pub struct ActivatePane(pub usize);
  316
  317/// Moves an item to a specific pane by index.
  318#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  319#[action(namespace = workspace)]
  320#[serde(deny_unknown_fields)]
  321pub struct MoveItemToPane {
  322    #[serde(default = "default_1")]
  323    pub destination: usize,
  324    #[serde(default = "default_true")]
  325    pub focus: bool,
  326    #[serde(default)]
  327    pub clone: bool,
  328}
  329
  330fn default_1() -> usize {
  331    1
  332}
  333
  334/// Moves an item to a pane in the specified direction.
  335#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  336#[action(namespace = workspace)]
  337#[serde(deny_unknown_fields)]
  338pub struct MoveItemToPaneInDirection {
  339    #[serde(default = "default_right")]
  340    pub direction: SplitDirection,
  341    #[serde(default = "default_true")]
  342    pub focus: bool,
  343    #[serde(default)]
  344    pub clone: bool,
  345}
  346
  347/// Creates a new file in a split of the desired direction.
  348#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  349#[action(namespace = workspace)]
  350#[serde(deny_unknown_fields)]
  351pub struct NewFileSplit(pub SplitDirection);
  352
  353fn default_right() -> SplitDirection {
  354    SplitDirection::Right
  355}
  356
  357/// Saves all open files in the workspace.
  358#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct SaveAll {
  362    #[serde(default)]
  363    pub save_intent: Option<SaveIntent>,
  364}
  365
  366/// Saves the current file with the specified options.
  367#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct Save {
  371    #[serde(default)]
  372    pub save_intent: Option<SaveIntent>,
  373}
  374
  375/// Closes all items and panes in the workspace.
  376#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct CloseAllItemsAndPanes {
  380    #[serde(default)]
  381    pub save_intent: Option<SaveIntent>,
  382}
  383
  384/// Closes all inactive tabs and panes in the workspace.
  385#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387#[serde(deny_unknown_fields)]
  388pub struct CloseInactiveTabsAndPanes {
  389    #[serde(default)]
  390    pub save_intent: Option<SaveIntent>,
  391}
  392
  393/// Closes the active item across all panes.
  394#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  395#[action(namespace = workspace)]
  396#[serde(deny_unknown_fields)]
  397pub struct CloseItemInAllPanes {
  398    #[serde(default)]
  399    pub save_intent: Option<SaveIntent>,
  400    #[serde(default)]
  401    pub close_pinned: bool,
  402}
  403
  404/// Sends a sequence of keystrokes to the active element.
  405#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  406#[action(namespace = workspace)]
  407pub struct SendKeystrokes(pub String);
  408
  409actions!(
  410    project_symbols,
  411    [
  412        /// Toggles the project symbols search.
  413        #[action(name = "Toggle")]
  414        ToggleProjectSymbols
  415    ]
  416);
  417
  418/// Toggles the file finder interface.
  419#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  420#[action(namespace = file_finder, name = "Toggle")]
  421#[serde(deny_unknown_fields)]
  422pub struct ToggleFileFinder {
  423    #[serde(default)]
  424    pub separate_history: bool,
  425}
  426
  427/// Opens a new terminal in the center.
  428#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  429#[action(namespace = workspace)]
  430#[serde(deny_unknown_fields)]
  431pub struct NewCenterTerminal {
  432    /// If true, creates a local terminal even in remote projects.
  433    #[serde(default)]
  434    pub local: bool,
  435}
  436
  437/// Opens a new terminal.
  438#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440#[serde(deny_unknown_fields)]
  441pub struct NewTerminal {
  442    /// If true, creates a local terminal even in remote projects.
  443    #[serde(default)]
  444    pub local: bool,
  445}
  446
  447/// Increases size of a currently focused dock by a given amount of pixels.
  448#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  449#[action(namespace = workspace)]
  450#[serde(deny_unknown_fields)]
  451pub struct IncreaseActiveDockSize {
  452    /// For 0px parameter, uses UI font size value.
  453    #[serde(default)]
  454    pub px: u32,
  455}
  456
  457/// Decreases size of a currently focused dock by a given amount of pixels.
  458#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  459#[action(namespace = workspace)]
  460#[serde(deny_unknown_fields)]
  461pub struct DecreaseActiveDockSize {
  462    /// For 0px parameter, uses UI font size value.
  463    #[serde(default)]
  464    pub px: u32,
  465}
  466
  467/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  468#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  469#[action(namespace = workspace)]
  470#[serde(deny_unknown_fields)]
  471pub struct IncreaseOpenDocksSize {
  472    /// For 0px parameter, uses UI font size value.
  473    #[serde(default)]
  474    pub px: u32,
  475}
  476
  477/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  478#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  479#[action(namespace = workspace)]
  480#[serde(deny_unknown_fields)]
  481pub struct DecreaseOpenDocksSize {
  482    /// For 0px parameter, uses UI font size value.
  483    #[serde(default)]
  484    pub px: u32,
  485}
  486
  487actions!(
  488    workspace,
  489    [
  490        /// Activates the pane to the left.
  491        ActivatePaneLeft,
  492        /// Activates the pane to the right.
  493        ActivatePaneRight,
  494        /// Activates the pane above.
  495        ActivatePaneUp,
  496        /// Activates the pane below.
  497        ActivatePaneDown,
  498        /// Swaps the current pane with the one to the left.
  499        SwapPaneLeft,
  500        /// Swaps the current pane with the one to the right.
  501        SwapPaneRight,
  502        /// Swaps the current pane with the one above.
  503        SwapPaneUp,
  504        /// Swaps the current pane with the one below.
  505        SwapPaneDown,
  506        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  507        SwapPaneAdjacent,
  508        /// Move the current pane to be at the far left.
  509        MovePaneLeft,
  510        /// Move the current pane to be at the far right.
  511        MovePaneRight,
  512        /// Move the current pane to be at the very top.
  513        MovePaneUp,
  514        /// Move the current pane to be at the very bottom.
  515        MovePaneDown,
  516    ]
  517);
  518
  519#[derive(PartialEq, Eq, Debug)]
  520pub enum CloseIntent {
  521    /// Quit the program entirely.
  522    Quit,
  523    /// Close a window.
  524    CloseWindow,
  525    /// Replace the workspace in an existing window.
  526    ReplaceWindow,
  527}
  528
  529#[derive(Clone)]
  530pub struct Toast {
  531    id: NotificationId,
  532    msg: Cow<'static, str>,
  533    autohide: bool,
  534    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  535}
  536
  537impl Toast {
  538    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  539        Toast {
  540            id,
  541            msg: msg.into(),
  542            on_click: None,
  543            autohide: false,
  544        }
  545    }
  546
  547    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  548    where
  549        M: Into<Cow<'static, str>>,
  550        F: Fn(&mut Window, &mut App) + 'static,
  551    {
  552        self.on_click = Some((message.into(), Arc::new(on_click)));
  553        self
  554    }
  555
  556    pub fn autohide(mut self) -> Self {
  557        self.autohide = true;
  558        self
  559    }
  560}
  561
  562impl PartialEq for Toast {
  563    fn eq(&self, other: &Self) -> bool {
  564        self.id == other.id
  565            && self.msg == other.msg
  566            && self.on_click.is_some() == other.on_click.is_some()
  567    }
  568}
  569
  570/// Opens a new terminal with the specified working directory.
  571#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  572#[action(namespace = workspace)]
  573#[serde(deny_unknown_fields)]
  574pub struct OpenTerminal {
  575    pub working_directory: PathBuf,
  576    /// If true, creates a local terminal even in remote projects.
  577    #[serde(default)]
  578    pub local: bool,
  579}
  580
  581#[derive(
  582    Clone,
  583    Copy,
  584    Debug,
  585    Default,
  586    Hash,
  587    PartialEq,
  588    Eq,
  589    PartialOrd,
  590    Ord,
  591    serde::Serialize,
  592    serde::Deserialize,
  593)]
  594pub struct WorkspaceId(i64);
  595
  596impl WorkspaceId {
  597    pub fn from_i64(value: i64) -> Self {
  598        Self(value)
  599    }
  600}
  601
  602impl StaticColumnCount for WorkspaceId {}
  603impl Bind for WorkspaceId {
  604    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  605        self.0.bind(statement, start_index)
  606    }
  607}
  608impl Column for WorkspaceId {
  609    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  610        i64::column(statement, start_index)
  611            .map(|(i, next_index)| (Self(i), next_index))
  612            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  613    }
  614}
  615impl From<WorkspaceId> for i64 {
  616    fn from(val: WorkspaceId) -> Self {
  617        val.0
  618    }
  619}
  620
  621fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  622    let paths = cx.prompt_for_paths(options);
  623    cx.spawn(
  624        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  625            Ok(Some(paths)) => {
  626                cx.update(|cx| {
  627                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  628                });
  629            }
  630            Ok(None) => {}
  631            Err(err) => {
  632                util::log_err(&err);
  633                cx.update(|cx| {
  634                    if let Some(workspace_window) = cx
  635                        .active_window()
  636                        .and_then(|window| window.downcast::<MultiWorkspace>())
  637                    {
  638                        workspace_window
  639                            .update(cx, |multi_workspace, _, cx| {
  640                                let workspace = multi_workspace.workspace().clone();
  641                                workspace.update(cx, |workspace, cx| {
  642                                    workspace.show_portal_error(err.to_string(), cx);
  643                                });
  644                            })
  645                            .ok();
  646                    }
  647                });
  648            }
  649        },
  650    )
  651    .detach();
  652}
  653
  654pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  655    component::init();
  656    theme_preview::init(cx);
  657    toast_layer::init(cx);
  658    history_manager::init(app_state.fs.clone(), cx);
  659
  660    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  661        .on_action(|_: &Reload, cx| reload(cx))
  662        .on_action({
  663            let app_state = Arc::downgrade(&app_state);
  664            move |_: &Open, cx: &mut App| {
  665                if let Some(app_state) = app_state.upgrade() {
  666                    prompt_and_open_paths(
  667                        app_state,
  668                        PathPromptOptions {
  669                            files: true,
  670                            directories: true,
  671                            multiple: true,
  672                            prompt: None,
  673                        },
  674                        cx,
  675                    );
  676                }
  677            }
  678        })
  679        .on_action({
  680            let app_state = Arc::downgrade(&app_state);
  681            move |_: &OpenFiles, cx: &mut App| {
  682                let directories = cx.can_select_mixed_files_and_dirs();
  683                if let Some(app_state) = app_state.upgrade() {
  684                    prompt_and_open_paths(
  685                        app_state,
  686                        PathPromptOptions {
  687                            files: true,
  688                            directories,
  689                            multiple: true,
  690                            prompt: None,
  691                        },
  692                        cx,
  693                    );
  694                }
  695            }
  696        });
  697}
  698
  699type BuildProjectItemFn =
  700    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  701
  702type BuildProjectItemForPathFn =
  703    fn(
  704        &Entity<Project>,
  705        &ProjectPath,
  706        &mut Window,
  707        &mut App,
  708    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  709
  710#[derive(Clone, Default)]
  711struct ProjectItemRegistry {
  712    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  713    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  714}
  715
  716impl ProjectItemRegistry {
  717    fn register<T: ProjectItem>(&mut self) {
  718        self.build_project_item_fns_by_type.insert(
  719            TypeId::of::<T::Item>(),
  720            |item, project, pane, window, cx| {
  721                let item = item.downcast().unwrap();
  722                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  723                    as Box<dyn ItemHandle>
  724            },
  725        );
  726        self.build_project_item_for_path_fns
  727            .push(|project, project_path, window, cx| {
  728                let project_path = project_path.clone();
  729                let is_file = project
  730                    .read(cx)
  731                    .entry_for_path(&project_path, cx)
  732                    .is_some_and(|entry| entry.is_file());
  733                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  734                let is_local = project.read(cx).is_local();
  735                let project_item =
  736                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  737                let project = project.clone();
  738                Some(window.spawn(cx, async move |cx| {
  739                    match project_item.await.with_context(|| {
  740                        format!(
  741                            "opening project path {:?}",
  742                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  743                        )
  744                    }) {
  745                        Ok(project_item) => {
  746                            let project_item = project_item;
  747                            let project_entry_id: Option<ProjectEntryId> =
  748                                project_item.read_with(cx, project::ProjectItem::entry_id);
  749                            let build_workspace_item = Box::new(
  750                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  751                                    Box::new(cx.new(|cx| {
  752                                        T::for_project_item(
  753                                            project,
  754                                            Some(pane),
  755                                            project_item,
  756                                            window,
  757                                            cx,
  758                                        )
  759                                    })) as Box<dyn ItemHandle>
  760                                },
  761                            ) as Box<_>;
  762                            Ok((project_entry_id, build_workspace_item))
  763                        }
  764                        Err(e) => {
  765                            log::warn!("Failed to open a project item: {e:#}");
  766                            if e.error_code() == ErrorCode::Internal {
  767                                if let Some(abs_path) =
  768                                    entry_abs_path.as_deref().filter(|_| is_file)
  769                                {
  770                                    if let Some(broken_project_item_view) =
  771                                        cx.update(|window, cx| {
  772                                            T::for_broken_project_item(
  773                                                abs_path, is_local, &e, window, cx,
  774                                            )
  775                                        })?
  776                                    {
  777                                        let build_workspace_item = Box::new(
  778                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  779                                                cx.new(|_| broken_project_item_view).boxed_clone()
  780                                            },
  781                                        )
  782                                        as Box<_>;
  783                                        return Ok((None, build_workspace_item));
  784                                    }
  785                                }
  786                            }
  787                            Err(e)
  788                        }
  789                    }
  790                }))
  791            });
  792    }
  793
  794    fn open_path(
  795        &self,
  796        project: &Entity<Project>,
  797        path: &ProjectPath,
  798        window: &mut Window,
  799        cx: &mut App,
  800    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  801        let Some(open_project_item) = self
  802            .build_project_item_for_path_fns
  803            .iter()
  804            .rev()
  805            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  806        else {
  807            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  808        };
  809        open_project_item
  810    }
  811
  812    fn build_item<T: project::ProjectItem>(
  813        &self,
  814        item: Entity<T>,
  815        project: Entity<Project>,
  816        pane: Option<&Pane>,
  817        window: &mut Window,
  818        cx: &mut App,
  819    ) -> Option<Box<dyn ItemHandle>> {
  820        let build = self
  821            .build_project_item_fns_by_type
  822            .get(&TypeId::of::<T>())?;
  823        Some(build(item.into_any(), project, pane, window, cx))
  824    }
  825}
  826
  827type WorkspaceItemBuilder =
  828    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  829
  830impl Global for ProjectItemRegistry {}
  831
  832/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  833/// items will get a chance to open the file, starting from the project item that
  834/// was added last.
  835pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  836    cx.default_global::<ProjectItemRegistry>().register::<I>();
  837}
  838
  839#[derive(Default)]
  840pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  841
  842struct FollowableViewDescriptor {
  843    from_state_proto: fn(
  844        Entity<Workspace>,
  845        ViewId,
  846        &mut Option<proto::view::Variant>,
  847        &mut Window,
  848        &mut App,
  849    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  850    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  851}
  852
  853impl Global for FollowableViewRegistry {}
  854
  855impl FollowableViewRegistry {
  856    pub fn register<I: FollowableItem>(cx: &mut App) {
  857        cx.default_global::<Self>().0.insert(
  858            TypeId::of::<I>(),
  859            FollowableViewDescriptor {
  860                from_state_proto: |workspace, id, state, window, cx| {
  861                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  862                        cx.foreground_executor()
  863                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  864                    })
  865                },
  866                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  867            },
  868        );
  869    }
  870
  871    pub fn from_state_proto(
  872        workspace: Entity<Workspace>,
  873        view_id: ViewId,
  874        mut state: Option<proto::view::Variant>,
  875        window: &mut Window,
  876        cx: &mut App,
  877    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  878        cx.update_default_global(|this: &mut Self, cx| {
  879            this.0.values().find_map(|descriptor| {
  880                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  881            })
  882        })
  883    }
  884
  885    pub fn to_followable_view(
  886        view: impl Into<AnyView>,
  887        cx: &App,
  888    ) -> Option<Box<dyn FollowableItemHandle>> {
  889        let this = cx.try_global::<Self>()?;
  890        let view = view.into();
  891        let descriptor = this.0.get(&view.entity_type())?;
  892        Some((descriptor.to_followable_view)(&view))
  893    }
  894}
  895
  896#[derive(Copy, Clone)]
  897struct SerializableItemDescriptor {
  898    deserialize: fn(
  899        Entity<Project>,
  900        WeakEntity<Workspace>,
  901        WorkspaceId,
  902        ItemId,
  903        &mut Window,
  904        &mut Context<Pane>,
  905    ) -> Task<Result<Box<dyn ItemHandle>>>,
  906    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  907    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  908}
  909
  910#[derive(Default)]
  911struct SerializableItemRegistry {
  912    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  913    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  914}
  915
  916impl Global for SerializableItemRegistry {}
  917
  918impl SerializableItemRegistry {
  919    fn deserialize(
  920        item_kind: &str,
  921        project: Entity<Project>,
  922        workspace: WeakEntity<Workspace>,
  923        workspace_id: WorkspaceId,
  924        item_item: ItemId,
  925        window: &mut Window,
  926        cx: &mut Context<Pane>,
  927    ) -> Task<Result<Box<dyn ItemHandle>>> {
  928        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  929            return Task::ready(Err(anyhow!(
  930                "cannot deserialize {}, descriptor not found",
  931                item_kind
  932            )));
  933        };
  934
  935        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  936    }
  937
  938    fn cleanup(
  939        item_kind: &str,
  940        workspace_id: WorkspaceId,
  941        loaded_items: Vec<ItemId>,
  942        window: &mut Window,
  943        cx: &mut App,
  944    ) -> Task<Result<()>> {
  945        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  946            return Task::ready(Err(anyhow!(
  947                "cannot cleanup {}, descriptor not found",
  948                item_kind
  949            )));
  950        };
  951
  952        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  953    }
  954
  955    fn view_to_serializable_item_handle(
  956        view: AnyView,
  957        cx: &App,
  958    ) -> Option<Box<dyn SerializableItemHandle>> {
  959        let this = cx.try_global::<Self>()?;
  960        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  961        Some((descriptor.view_to_serializable_item)(view))
  962    }
  963
  964    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  965        let this = cx.try_global::<Self>()?;
  966        this.descriptors_by_kind.get(item_kind).copied()
  967    }
  968}
  969
  970pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  971    let serialized_item_kind = I::serialized_item_kind();
  972
  973    let registry = cx.default_global::<SerializableItemRegistry>();
  974    let descriptor = SerializableItemDescriptor {
  975        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  976            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  977            cx.foreground_executor()
  978                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  979        },
  980        cleanup: |workspace_id, loaded_items, window, cx| {
  981            I::cleanup(workspace_id, loaded_items, window, cx)
  982        },
  983        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  984    };
  985    registry
  986        .descriptors_by_kind
  987        .insert(Arc::from(serialized_item_kind), descriptor);
  988    registry
  989        .descriptors_by_type
  990        .insert(TypeId::of::<I>(), descriptor);
  991}
  992
  993pub struct AppState {
  994    pub languages: Arc<LanguageRegistry>,
  995    pub client: Arc<Client>,
  996    pub user_store: Entity<UserStore>,
  997    pub workspace_store: Entity<WorkspaceStore>,
  998    pub fs: Arc<dyn fs::Fs>,
  999    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1000    pub node_runtime: NodeRuntime,
 1001    pub session: Entity<AppSession>,
 1002}
 1003
 1004struct GlobalAppState(Weak<AppState>);
 1005
 1006impl Global for GlobalAppState {}
 1007
 1008pub struct WorkspaceStore {
 1009    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1010    client: Arc<Client>,
 1011    _subscriptions: Vec<client::Subscription>,
 1012}
 1013
 1014#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1015pub enum CollaboratorId {
 1016    PeerId(PeerId),
 1017    Agent,
 1018}
 1019
 1020impl From<PeerId> for CollaboratorId {
 1021    fn from(peer_id: PeerId) -> Self {
 1022        CollaboratorId::PeerId(peer_id)
 1023    }
 1024}
 1025
 1026impl From<&PeerId> for CollaboratorId {
 1027    fn from(peer_id: &PeerId) -> Self {
 1028        CollaboratorId::PeerId(*peer_id)
 1029    }
 1030}
 1031
 1032#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1033struct Follower {
 1034    project_id: Option<u64>,
 1035    peer_id: PeerId,
 1036}
 1037
 1038impl AppState {
 1039    #[track_caller]
 1040    pub fn global(cx: &App) -> Weak<Self> {
 1041        cx.global::<GlobalAppState>().0.clone()
 1042    }
 1043    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1044        cx.try_global::<GlobalAppState>()
 1045            .map(|state| state.0.clone())
 1046    }
 1047    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1048        cx.set_global(GlobalAppState(state));
 1049    }
 1050
 1051    #[cfg(any(test, feature = "test-support"))]
 1052    pub fn test(cx: &mut App) -> Arc<Self> {
 1053        use fs::Fs;
 1054        use node_runtime::NodeRuntime;
 1055        use session::Session;
 1056        use settings::SettingsStore;
 1057
 1058        if !cx.has_global::<SettingsStore>() {
 1059            let settings_store = SettingsStore::test(cx);
 1060            cx.set_global(settings_store);
 1061        }
 1062
 1063        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1064        <dyn Fs>::set_global(fs.clone(), cx);
 1065        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1066        let clock = Arc::new(clock::FakeSystemClock::new());
 1067        let http_client = http_client::FakeHttpClient::with_404_response();
 1068        let client = Client::new(clock, http_client, cx);
 1069        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1070        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1071        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1072
 1073        theme::init(theme::LoadThemes::JustBase, cx);
 1074        client::init(&client, cx);
 1075
 1076        Arc::new(Self {
 1077            client,
 1078            fs,
 1079            languages,
 1080            user_store,
 1081            workspace_store,
 1082            node_runtime: NodeRuntime::unavailable(),
 1083            build_window_options: |_, _| Default::default(),
 1084            session,
 1085        })
 1086    }
 1087}
 1088
 1089struct DelayedDebouncedEditAction {
 1090    task: Option<Task<()>>,
 1091    cancel_channel: Option<oneshot::Sender<()>>,
 1092}
 1093
 1094impl DelayedDebouncedEditAction {
 1095    fn new() -> DelayedDebouncedEditAction {
 1096        DelayedDebouncedEditAction {
 1097            task: None,
 1098            cancel_channel: None,
 1099        }
 1100    }
 1101
 1102    fn fire_new<F>(
 1103        &mut self,
 1104        delay: Duration,
 1105        window: &mut Window,
 1106        cx: &mut Context<Workspace>,
 1107        func: F,
 1108    ) where
 1109        F: 'static
 1110            + Send
 1111            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1112    {
 1113        if let Some(channel) = self.cancel_channel.take() {
 1114            _ = channel.send(());
 1115        }
 1116
 1117        let (sender, mut receiver) = oneshot::channel::<()>();
 1118        self.cancel_channel = Some(sender);
 1119
 1120        let previous_task = self.task.take();
 1121        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1122            let mut timer = cx.background_executor().timer(delay).fuse();
 1123            if let Some(previous_task) = previous_task {
 1124                previous_task.await;
 1125            }
 1126
 1127            futures::select_biased! {
 1128                _ = receiver => return,
 1129                    _ = timer => {}
 1130            }
 1131
 1132            if let Some(result) = workspace
 1133                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1134                .log_err()
 1135            {
 1136                result.await.log_err();
 1137            }
 1138        }));
 1139    }
 1140}
 1141
 1142pub enum Event {
 1143    PaneAdded(Entity<Pane>),
 1144    PaneRemoved,
 1145    ItemAdded {
 1146        item: Box<dyn ItemHandle>,
 1147    },
 1148    ActiveItemChanged,
 1149    ItemRemoved {
 1150        item_id: EntityId,
 1151    },
 1152    UserSavedItem {
 1153        pane: WeakEntity<Pane>,
 1154        item: Box<dyn WeakItemHandle>,
 1155        save_intent: SaveIntent,
 1156    },
 1157    ContactRequestedJoin(u64),
 1158    WorkspaceCreated(WeakEntity<Workspace>),
 1159    OpenBundledFile {
 1160        text: Cow<'static, str>,
 1161        title: &'static str,
 1162        language: &'static str,
 1163    },
 1164    ZoomChanged,
 1165    ModalOpened,
 1166}
 1167
 1168#[derive(Debug)]
 1169pub enum OpenVisible {
 1170    All,
 1171    None,
 1172    OnlyFiles,
 1173    OnlyDirectories,
 1174}
 1175
 1176enum WorkspaceLocation {
 1177    // Valid local paths or SSH project to serialize
 1178    Location(SerializedWorkspaceLocation, PathList),
 1179    // No valid location found hence clear session id
 1180    DetachFromSession,
 1181    // No valid location found to serialize
 1182    None,
 1183}
 1184
 1185type PromptForNewPath = Box<
 1186    dyn Fn(
 1187        &mut Workspace,
 1188        DirectoryLister,
 1189        Option<String>,
 1190        &mut Window,
 1191        &mut Context<Workspace>,
 1192    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1193>;
 1194
 1195type PromptForOpenPath = Box<
 1196    dyn Fn(
 1197        &mut Workspace,
 1198        DirectoryLister,
 1199        &mut Window,
 1200        &mut Context<Workspace>,
 1201    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1202>;
 1203
 1204#[derive(Default)]
 1205struct DispatchingKeystrokes {
 1206    dispatched: HashSet<Vec<Keystroke>>,
 1207    queue: VecDeque<Keystroke>,
 1208    task: Option<Shared<Task<()>>>,
 1209}
 1210
 1211/// Collects everything project-related for a certain window opened.
 1212/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1213///
 1214/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1215/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1216/// that can be used to register a global action to be triggered from any place in the window.
 1217pub struct Workspace {
 1218    weak_self: WeakEntity<Self>,
 1219    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1220    zoomed: Option<AnyWeakView>,
 1221    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1222    zoomed_position: Option<DockPosition>,
 1223    center: PaneGroup,
 1224    left_dock: Entity<Dock>,
 1225    bottom_dock: Entity<Dock>,
 1226    right_dock: Entity<Dock>,
 1227    panes: Vec<Entity<Pane>>,
 1228    active_worktree_override: Option<WorktreeId>,
 1229    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1230    active_pane: Entity<Pane>,
 1231    last_active_center_pane: Option<WeakEntity<Pane>>,
 1232    last_active_view_id: Option<proto::ViewId>,
 1233    status_bar: Entity<StatusBar>,
 1234    modal_layer: Entity<ModalLayer>,
 1235    toast_layer: Entity<ToastLayer>,
 1236    titlebar_item: Option<AnyView>,
 1237    notifications: Notifications,
 1238    suppressed_notifications: HashSet<NotificationId>,
 1239    project: Entity<Project>,
 1240    follower_states: HashMap<CollaboratorId, FollowerState>,
 1241    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1242    window_edited: bool,
 1243    last_window_title: Option<String>,
 1244    dirty_items: HashMap<EntityId, Subscription>,
 1245    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1246    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1247    database_id: Option<WorkspaceId>,
 1248    app_state: Arc<AppState>,
 1249    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1250    _subscriptions: Vec<Subscription>,
 1251    _apply_leader_updates: Task<Result<()>>,
 1252    _observe_current_user: Task<Result<()>>,
 1253    _schedule_serialize_workspace: Option<Task<()>>,
 1254    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1255    pane_history_timestamp: Arc<AtomicUsize>,
 1256    bounds: Bounds<Pixels>,
 1257    pub centered_layout: bool,
 1258    bounds_save_task_queued: Option<Task<()>>,
 1259    on_prompt_for_new_path: Option<PromptForNewPath>,
 1260    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1261    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1262    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1263    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1264    _items_serializer: Task<Result<()>>,
 1265    session_id: Option<String>,
 1266    scheduled_tasks: Vec<Task<()>>,
 1267    last_open_dock_positions: Vec<DockPosition>,
 1268    removing: bool,
 1269    utility_panes: UtilityPaneState,
 1270}
 1271
 1272impl EventEmitter<Event> for Workspace {}
 1273
 1274#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1275pub struct ViewId {
 1276    pub creator: CollaboratorId,
 1277    pub id: u64,
 1278}
 1279
 1280pub struct FollowerState {
 1281    center_pane: Entity<Pane>,
 1282    dock_pane: Option<Entity<Pane>>,
 1283    active_view_id: Option<ViewId>,
 1284    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1285}
 1286
 1287struct FollowerView {
 1288    view: Box<dyn FollowableItemHandle>,
 1289    location: Option<proto::PanelId>,
 1290}
 1291
 1292impl Workspace {
 1293    pub fn new(
 1294        workspace_id: Option<WorkspaceId>,
 1295        project: Entity<Project>,
 1296        app_state: Arc<AppState>,
 1297        window: &mut Window,
 1298        cx: &mut Context<Self>,
 1299    ) -> Self {
 1300        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1301            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1302                if let TrustedWorktreesEvent::Trusted(..) = e {
 1303                    // Do not persist auto trusted worktrees
 1304                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1305                        worktrees_store.update(cx, |worktrees_store, cx| {
 1306                            worktrees_store.schedule_serialization(
 1307                                cx,
 1308                                |new_trusted_worktrees, cx| {
 1309                                    let timeout =
 1310                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1311                                    cx.background_spawn(async move {
 1312                                        timeout.await;
 1313                                        persistence::DB
 1314                                            .save_trusted_worktrees(new_trusted_worktrees)
 1315                                            .await
 1316                                            .log_err();
 1317                                    })
 1318                                },
 1319                            )
 1320                        });
 1321                    }
 1322                }
 1323            })
 1324            .detach();
 1325
 1326            cx.observe_global::<SettingsStore>(|_, cx| {
 1327                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1328                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1329                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1330                            trusted_worktrees.auto_trust_all(cx);
 1331                        })
 1332                    }
 1333                }
 1334            })
 1335            .detach();
 1336        }
 1337
 1338        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1339            match event {
 1340                project::Event::RemoteIdChanged(_) => {
 1341                    this.update_window_title(window, cx);
 1342                }
 1343
 1344                project::Event::CollaboratorLeft(peer_id) => {
 1345                    this.collaborator_left(*peer_id, window, cx);
 1346                }
 1347
 1348                &project::Event::WorktreeRemoved(id) | &project::Event::WorktreeAdded(id) => {
 1349                    this.update_window_title(window, cx);
 1350                    if this
 1351                        .project()
 1352                        .read(cx)
 1353                        .worktree_for_id(id, cx)
 1354                        .is_some_and(|wt| wt.read(cx).is_visible())
 1355                    {
 1356                        this.serialize_workspace(window, cx);
 1357                        this.update_history(cx);
 1358                    }
 1359                }
 1360                project::Event::WorktreeUpdatedEntries(..) => {
 1361                    this.update_window_title(window, cx);
 1362                    this.serialize_workspace(window, cx);
 1363                }
 1364
 1365                project::Event::DisconnectedFromHost => {
 1366                    this.update_window_edited(window, cx);
 1367                    let leaders_to_unfollow =
 1368                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1369                    for leader_id in leaders_to_unfollow {
 1370                        this.unfollow(leader_id, window, cx);
 1371                    }
 1372                }
 1373
 1374                project::Event::DisconnectedFromRemote {
 1375                    server_not_running: _,
 1376                } => {
 1377                    this.update_window_edited(window, cx);
 1378                }
 1379
 1380                project::Event::Closed => {
 1381                    window.remove_window();
 1382                }
 1383
 1384                project::Event::DeletedEntry(_, entry_id) => {
 1385                    for pane in this.panes.iter() {
 1386                        pane.update(cx, |pane, cx| {
 1387                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1388                        });
 1389                    }
 1390                }
 1391
 1392                project::Event::Toast {
 1393                    notification_id,
 1394                    message,
 1395                    link,
 1396                } => this.show_notification(
 1397                    NotificationId::named(notification_id.clone()),
 1398                    cx,
 1399                    |cx| {
 1400                        let mut notification = MessageNotification::new(message.clone(), cx);
 1401                        if let Some(link) = link {
 1402                            notification = notification
 1403                                .more_info_message(link.label)
 1404                                .more_info_url(link.url);
 1405                        }
 1406
 1407                        cx.new(|_| notification)
 1408                    },
 1409                ),
 1410
 1411                project::Event::HideToast { notification_id } => {
 1412                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1413                }
 1414
 1415                project::Event::LanguageServerPrompt(request) => {
 1416                    struct LanguageServerPrompt;
 1417
 1418                    this.show_notification(
 1419                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1420                        cx,
 1421                        |cx| {
 1422                            cx.new(|cx| {
 1423                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1424                            })
 1425                        },
 1426                    );
 1427                }
 1428
 1429                project::Event::AgentLocationChanged => {
 1430                    this.handle_agent_location_changed(window, cx)
 1431                }
 1432
 1433                _ => {}
 1434            }
 1435            cx.notify()
 1436        })
 1437        .detach();
 1438
 1439        cx.subscribe_in(
 1440            &project.read(cx).breakpoint_store(),
 1441            window,
 1442            |workspace, _, event, window, cx| match event {
 1443                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1444                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1445                    workspace.serialize_workspace(window, cx);
 1446                }
 1447                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1448            },
 1449        )
 1450        .detach();
 1451        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1452            cx.subscribe_in(
 1453                &toolchain_store,
 1454                window,
 1455                |workspace, _, event, window, cx| match event {
 1456                    ToolchainStoreEvent::CustomToolchainsModified => {
 1457                        workspace.serialize_workspace(window, cx);
 1458                    }
 1459                    _ => {}
 1460                },
 1461            )
 1462            .detach();
 1463        }
 1464
 1465        cx.on_focus_lost(window, |this, window, cx| {
 1466            let focus_handle = this.focus_handle(cx);
 1467            window.focus(&focus_handle, cx);
 1468        })
 1469        .detach();
 1470
 1471        let weak_handle = cx.entity().downgrade();
 1472        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1473
 1474        let center_pane = cx.new(|cx| {
 1475            let mut center_pane = Pane::new(
 1476                weak_handle.clone(),
 1477                project.clone(),
 1478                pane_history_timestamp.clone(),
 1479                None,
 1480                NewFile.boxed_clone(),
 1481                true,
 1482                window,
 1483                cx,
 1484            );
 1485            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1486            center_pane.set_should_display_welcome_page(true);
 1487            center_pane
 1488        });
 1489        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1490            .detach();
 1491
 1492        window.focus(&center_pane.focus_handle(cx), cx);
 1493
 1494        cx.emit(Event::PaneAdded(center_pane.clone()));
 1495
 1496        let any_window_handle = window.window_handle();
 1497        app_state.workspace_store.update(cx, |store, _| {
 1498            store
 1499                .workspaces
 1500                .insert((any_window_handle, weak_handle.clone()));
 1501        });
 1502
 1503        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1504        let mut connection_status = app_state.client.status();
 1505        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1506            current_user.next().await;
 1507            connection_status.next().await;
 1508            let mut stream =
 1509                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1510
 1511            while stream.recv().await.is_some() {
 1512                this.update(cx, |_, cx| cx.notify())?;
 1513            }
 1514            anyhow::Ok(())
 1515        });
 1516
 1517        // All leader updates are enqueued and then processed in a single task, so
 1518        // that each asynchronous operation can be run in order.
 1519        let (leader_updates_tx, mut leader_updates_rx) =
 1520            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1521        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1522            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1523                Self::process_leader_update(&this, leader_id, update, cx)
 1524                    .await
 1525                    .log_err();
 1526            }
 1527
 1528            Ok(())
 1529        });
 1530
 1531        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1532        let modal_layer = cx.new(|_| ModalLayer::new());
 1533        let toast_layer = cx.new(|_| ToastLayer::new());
 1534        cx.subscribe(
 1535            &modal_layer,
 1536            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1537                cx.emit(Event::ModalOpened);
 1538            },
 1539        )
 1540        .detach();
 1541
 1542        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1543        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1544        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1545        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1546        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1547        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1548        let status_bar = cx.new(|cx| {
 1549            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1550            status_bar.add_left_item(left_dock_buttons, window, cx);
 1551            status_bar.add_right_item(right_dock_buttons, window, cx);
 1552            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1553            status_bar
 1554        });
 1555
 1556        let session_id = app_state.session.read(cx).id().to_owned();
 1557
 1558        let mut active_call = None;
 1559        if let Some(call) = ActiveCall::try_global(cx) {
 1560            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1561            active_call = Some((call, subscriptions));
 1562        }
 1563
 1564        let (serializable_items_tx, serializable_items_rx) =
 1565            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1566        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1567            Self::serialize_items(&this, serializable_items_rx, cx).await
 1568        });
 1569
 1570        let subscriptions = vec![
 1571            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1572            cx.observe_window_bounds(window, move |this, window, cx| {
 1573                if this.bounds_save_task_queued.is_some() {
 1574                    return;
 1575                }
 1576                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1577                    cx.background_executor()
 1578                        .timer(Duration::from_millis(100))
 1579                        .await;
 1580                    this.update_in(cx, |this, window, cx| {
 1581                        if let Some(display) = window.display(cx)
 1582                            && let Ok(display_uuid) = display.uuid()
 1583                        {
 1584                            let window_bounds = window.inner_window_bounds();
 1585                            let has_paths = !this.root_paths(cx).is_empty();
 1586                            if !has_paths {
 1587                                cx.background_executor()
 1588                                    .spawn(persistence::write_default_window_bounds(
 1589                                        window_bounds,
 1590                                        display_uuid,
 1591                                    ))
 1592                                    .detach_and_log_err(cx);
 1593                            }
 1594                            if let Some(database_id) = workspace_id {
 1595                                cx.background_executor()
 1596                                    .spawn(DB.set_window_open_status(
 1597                                        database_id,
 1598                                        SerializedWindowBounds(window_bounds),
 1599                                        display_uuid,
 1600                                    ))
 1601                                    .detach_and_log_err(cx);
 1602                            } else {
 1603                                cx.background_executor()
 1604                                    .spawn(persistence::write_default_window_bounds(
 1605                                        window_bounds,
 1606                                        display_uuid,
 1607                                    ))
 1608                                    .detach_and_log_err(cx);
 1609                            }
 1610                        }
 1611                        this.bounds_save_task_queued.take();
 1612                    })
 1613                    .ok();
 1614                }));
 1615                cx.notify();
 1616            }),
 1617            cx.observe_window_appearance(window, |_, window, cx| {
 1618                let window_appearance = window.appearance();
 1619
 1620                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1621
 1622                GlobalTheme::reload_theme(cx);
 1623                GlobalTheme::reload_icon_theme(cx);
 1624            }),
 1625            cx.on_release({
 1626                let weak_handle = weak_handle.clone();
 1627                move |this, cx| {
 1628                    this.app_state.workspace_store.update(cx, move |store, _| {
 1629                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1630                    })
 1631                }
 1632            }),
 1633        ];
 1634
 1635        cx.defer_in(window, move |this, window, cx| {
 1636            this.update_window_title(window, cx);
 1637            this.show_initial_notifications(cx);
 1638        });
 1639
 1640        let mut center = PaneGroup::new(center_pane.clone());
 1641        center.set_is_center(true);
 1642        center.mark_positions(cx);
 1643
 1644        Workspace {
 1645            weak_self: weak_handle.clone(),
 1646            zoomed: None,
 1647            zoomed_position: None,
 1648            previous_dock_drag_coordinates: None,
 1649            center,
 1650            panes: vec![center_pane.clone()],
 1651            panes_by_item: Default::default(),
 1652            active_pane: center_pane.clone(),
 1653            last_active_center_pane: Some(center_pane.downgrade()),
 1654            last_active_view_id: None,
 1655            status_bar,
 1656            modal_layer,
 1657            toast_layer,
 1658            titlebar_item: None,
 1659            active_worktree_override: None,
 1660            notifications: Notifications::default(),
 1661            suppressed_notifications: HashSet::default(),
 1662            left_dock,
 1663            bottom_dock,
 1664            right_dock,
 1665            project: project.clone(),
 1666            follower_states: Default::default(),
 1667            last_leaders_by_pane: Default::default(),
 1668            dispatching_keystrokes: Default::default(),
 1669            window_edited: false,
 1670            last_window_title: None,
 1671            dirty_items: Default::default(),
 1672            active_call,
 1673            database_id: workspace_id,
 1674            app_state,
 1675            _observe_current_user,
 1676            _apply_leader_updates,
 1677            _schedule_serialize_workspace: None,
 1678            _schedule_serialize_ssh_paths: None,
 1679            leader_updates_tx,
 1680            _subscriptions: subscriptions,
 1681            pane_history_timestamp,
 1682            workspace_actions: Default::default(),
 1683            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1684            bounds: Default::default(),
 1685            centered_layout: false,
 1686            bounds_save_task_queued: None,
 1687            on_prompt_for_new_path: None,
 1688            on_prompt_for_open_path: None,
 1689            terminal_provider: None,
 1690            debugger_provider: None,
 1691            serializable_items_tx,
 1692            _items_serializer,
 1693            session_id: Some(session_id),
 1694
 1695            scheduled_tasks: Vec::new(),
 1696            last_open_dock_positions: Vec::new(),
 1697            removing: false,
 1698            utility_panes: UtilityPaneState::default(),
 1699        }
 1700    }
 1701
 1702    pub fn new_local(
 1703        abs_paths: Vec<PathBuf>,
 1704        app_state: Arc<AppState>,
 1705        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1706        env: Option<HashMap<String, String>>,
 1707        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1708        cx: &mut App,
 1709    ) -> Task<
 1710        anyhow::Result<(
 1711            WindowHandle<MultiWorkspace>,
 1712            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1713        )>,
 1714    > {
 1715        let project_handle = Project::local(
 1716            app_state.client.clone(),
 1717            app_state.node_runtime.clone(),
 1718            app_state.user_store.clone(),
 1719            app_state.languages.clone(),
 1720            app_state.fs.clone(),
 1721            env,
 1722            Default::default(),
 1723            cx,
 1724        );
 1725
 1726        cx.spawn(async move |cx| {
 1727            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1728            for path in abs_paths.into_iter() {
 1729                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1730                    paths_to_open.push(canonical)
 1731                } else {
 1732                    paths_to_open.push(path)
 1733                }
 1734            }
 1735
 1736            let serialized_workspace =
 1737                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1738
 1739            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1740                paths_to_open = paths.ordered_paths().cloned().collect();
 1741                if !paths.is_lexicographically_ordered() {
 1742                    project_handle.update(cx, |project, cx| {
 1743                        project.set_worktrees_reordered(true, cx);
 1744                    });
 1745                }
 1746            }
 1747
 1748            // Get project paths for all of the abs_paths
 1749            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1750                Vec::with_capacity(paths_to_open.len());
 1751
 1752            for path in paths_to_open.into_iter() {
 1753                if let Some((_, project_entry)) = cx
 1754                    .update(|cx| {
 1755                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1756                    })
 1757                    .await
 1758                    .log_err()
 1759                {
 1760                    project_paths.push((path, Some(project_entry)));
 1761                } else {
 1762                    project_paths.push((path, None));
 1763                }
 1764            }
 1765
 1766            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1767                serialized_workspace.id
 1768            } else {
 1769                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1770            };
 1771
 1772            let toolchains = DB.toolchains(workspace_id).await?;
 1773
 1774            for (toolchain, worktree_path, path) in toolchains {
 1775                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1776                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1777                    this.find_worktree(&worktree_path, cx)
 1778                        .and_then(|(worktree, rel_path)| {
 1779                            if rel_path.is_empty() {
 1780                                Some(worktree.read(cx).id())
 1781                            } else {
 1782                                None
 1783                            }
 1784                        })
 1785                }) else {
 1786                    // We did not find a worktree with a given path, but that's whatever.
 1787                    continue;
 1788                };
 1789                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1790                    continue;
 1791                }
 1792
 1793                project_handle
 1794                    .update(cx, |this, cx| {
 1795                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1796                    })
 1797                    .await;
 1798            }
 1799            if let Some(workspace) = serialized_workspace.as_ref() {
 1800                project_handle.update(cx, |this, cx| {
 1801                    for (scope, toolchains) in &workspace.user_toolchains {
 1802                        for toolchain in toolchains {
 1803                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1804                        }
 1805                    }
 1806                });
 1807            }
 1808
 1809            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1810                if let Some(window) = requesting_window {
 1811                    let centered_layout = serialized_workspace
 1812                        .as_ref()
 1813                        .map(|w| w.centered_layout)
 1814                        .unwrap_or(false);
 1815
 1816                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1817                        let workspace = cx.new(|cx| {
 1818                            let mut workspace = Workspace::new(
 1819                                Some(workspace_id),
 1820                                project_handle.clone(),
 1821                                app_state.clone(),
 1822                                window,
 1823                                cx,
 1824                            );
 1825
 1826                            workspace.centered_layout = centered_layout;
 1827
 1828                            // Call init callback to add items before window renders
 1829                            if let Some(init) = init {
 1830                                init(&mut workspace, window, cx);
 1831                            }
 1832
 1833                            workspace
 1834                        });
 1835                        multi_workspace.activate(workspace.clone(), cx);
 1836                        workspace
 1837                    })?;
 1838                    (window, workspace)
 1839                } else {
 1840                    let window_bounds_override = window_bounds_env_override();
 1841
 1842                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1843                        (Some(WindowBounds::Windowed(bounds)), None)
 1844                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1845                        && let Some(display) = workspace.display
 1846                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1847                    {
 1848                        // Reopening an existing workspace - restore its saved bounds
 1849                        (Some(bounds.0), Some(display))
 1850                    } else if let Some((display, bounds)) =
 1851                        persistence::read_default_window_bounds()
 1852                    {
 1853                        // New or empty workspace - use the last known window bounds
 1854                        (Some(bounds), Some(display))
 1855                    } else {
 1856                        // New window - let GPUI's default_bounds() handle cascading
 1857                        (None, None)
 1858                    };
 1859
 1860                    // Use the serialized workspace to construct the new window
 1861                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1862                    options.window_bounds = window_bounds;
 1863                    let centered_layout = serialized_workspace
 1864                        .as_ref()
 1865                        .map(|w| w.centered_layout)
 1866                        .unwrap_or(false);
 1867                    let window = cx.open_window(options, {
 1868                        let app_state = app_state.clone();
 1869                        let project_handle = project_handle.clone();
 1870                        move |window, cx| {
 1871                            let workspace = cx.new(|cx| {
 1872                                let mut workspace = Workspace::new(
 1873                                    Some(workspace_id),
 1874                                    project_handle,
 1875                                    app_state,
 1876                                    window,
 1877                                    cx,
 1878                                );
 1879                                workspace.centered_layout = centered_layout;
 1880
 1881                                // Call init callback to add items before window renders
 1882                                if let Some(init) = init {
 1883                                    init(&mut workspace, window, cx);
 1884                                }
 1885
 1886                                workspace
 1887                            });
 1888                            cx.new(|cx| MultiWorkspace::new(workspace, cx))
 1889                        }
 1890                    })?;
 1891                    let workspace =
 1892                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1893                            multi_workspace.workspace().clone()
 1894                        })?;
 1895                    (window, workspace)
 1896                };
 1897
 1898            notify_if_database_failed(window, cx);
 1899            // Check if this is an empty workspace (no paths to open)
 1900            // An empty workspace is one where project_paths is empty
 1901            let is_empty_workspace = project_paths.is_empty();
 1902            // Check if serialized workspace has paths before it's moved
 1903            let serialized_workspace_has_paths = serialized_workspace
 1904                .as_ref()
 1905                .map(|ws| !ws.paths.is_empty())
 1906                .unwrap_or(false);
 1907
 1908            let opened_items = window
 1909                .update(cx, |_, window, cx| {
 1910                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 1911                        open_items(serialized_workspace, project_paths, window, cx)
 1912                    })
 1913                })?
 1914                .await
 1915                .unwrap_or_default();
 1916
 1917            // Restore default dock state for empty workspaces
 1918            // Only restore if:
 1919            // 1. This is an empty workspace (no paths), AND
 1920            // 2. The serialized workspace either doesn't exist or has no paths
 1921            if is_empty_workspace && !serialized_workspace_has_paths {
 1922                if let Some(default_docks) = persistence::read_default_dock_state() {
 1923                    window
 1924                        .update(cx, |_, window, cx| {
 1925                            workspace.update(cx, |workspace, cx| {
 1926                                for (dock, serialized_dock) in [
 1927                                    (&workspace.right_dock, &default_docks.right),
 1928                                    (&workspace.left_dock, &default_docks.left),
 1929                                    (&workspace.bottom_dock, &default_docks.bottom),
 1930                                ] {
 1931                                    dock.update(cx, |dock, cx| {
 1932                                        dock.serialized_dock = Some(serialized_dock.clone());
 1933                                        dock.restore_state(window, cx);
 1934                                    });
 1935                                }
 1936                                cx.notify();
 1937                            });
 1938                        })
 1939                        .log_err();
 1940                }
 1941            }
 1942
 1943            window
 1944                .update(cx, |_, _window, cx| {
 1945                    workspace.update(cx, |this: &mut Workspace, cx| {
 1946                        this.update_history(cx);
 1947                    });
 1948                })
 1949                .log_err();
 1950            Ok((window, opened_items))
 1951        })
 1952    }
 1953
 1954    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1955        self.weak_self.clone()
 1956    }
 1957
 1958    pub fn left_dock(&self) -> &Entity<Dock> {
 1959        &self.left_dock
 1960    }
 1961
 1962    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1963        &self.bottom_dock
 1964    }
 1965
 1966    pub fn set_bottom_dock_layout(
 1967        &mut self,
 1968        layout: BottomDockLayout,
 1969        window: &mut Window,
 1970        cx: &mut Context<Self>,
 1971    ) {
 1972        let fs = self.project().read(cx).fs();
 1973        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1974            content.workspace.bottom_dock_layout = Some(layout);
 1975        });
 1976
 1977        cx.notify();
 1978        self.serialize_workspace(window, cx);
 1979    }
 1980
 1981    pub fn right_dock(&self) -> &Entity<Dock> {
 1982        &self.right_dock
 1983    }
 1984
 1985    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1986        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1987    }
 1988
 1989    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1990        match position {
 1991            DockPosition::Left => &self.left_dock,
 1992            DockPosition::Bottom => &self.bottom_dock,
 1993            DockPosition::Right => &self.right_dock,
 1994        }
 1995    }
 1996
 1997    pub fn is_edited(&self) -> bool {
 1998        self.window_edited
 1999    }
 2000
 2001    pub fn add_panel<T: Panel>(
 2002        &mut self,
 2003        panel: Entity<T>,
 2004        window: &mut Window,
 2005        cx: &mut Context<Self>,
 2006    ) {
 2007        let focus_handle = panel.panel_focus_handle(cx);
 2008        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2009            .detach();
 2010
 2011        let dock_position = panel.position(window, cx);
 2012        let dock = self.dock_at_position(dock_position);
 2013
 2014        dock.update(cx, |dock, cx| {
 2015            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 2016        });
 2017    }
 2018
 2019    pub fn remove_panel<T: Panel>(
 2020        &mut self,
 2021        panel: &Entity<T>,
 2022        window: &mut Window,
 2023        cx: &mut Context<Self>,
 2024    ) {
 2025        let mut found_in_dock = None;
 2026        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2027            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2028
 2029            if found {
 2030                found_in_dock = Some(dock.clone());
 2031            }
 2032        }
 2033        if let Some(found_in_dock) = found_in_dock {
 2034            let position = found_in_dock.read(cx).position();
 2035            let slot = utility_slot_for_dock_position(position);
 2036            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 2037        }
 2038    }
 2039
 2040    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2041        &self.status_bar
 2042    }
 2043
 2044    pub fn set_workspace_sidebar_open(&self, open: bool, cx: &mut App) {
 2045        self.status_bar.update(cx, |status_bar, cx| {
 2046            status_bar.set_workspace_sidebar_open(open, cx);
 2047        });
 2048    }
 2049
 2050    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2051        StatusBarSettings::get_global(cx).show
 2052    }
 2053
 2054    pub fn app_state(&self) -> &Arc<AppState> {
 2055        &self.app_state
 2056    }
 2057
 2058    pub fn user_store(&self) -> &Entity<UserStore> {
 2059        &self.app_state.user_store
 2060    }
 2061
 2062    pub fn project(&self) -> &Entity<Project> {
 2063        &self.project
 2064    }
 2065
 2066    pub fn path_style(&self, cx: &App) -> PathStyle {
 2067        self.project.read(cx).path_style(cx)
 2068    }
 2069
 2070    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2071        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2072
 2073        for pane_handle in &self.panes {
 2074            let pane = pane_handle.read(cx);
 2075
 2076            for entry in pane.activation_history() {
 2077                history.insert(
 2078                    entry.entity_id,
 2079                    history
 2080                        .get(&entry.entity_id)
 2081                        .cloned()
 2082                        .unwrap_or(0)
 2083                        .max(entry.timestamp),
 2084                );
 2085            }
 2086        }
 2087
 2088        history
 2089    }
 2090
 2091    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2092        let mut recent_item: Option<Entity<T>> = None;
 2093        let mut recent_timestamp = 0;
 2094        for pane_handle in &self.panes {
 2095            let pane = pane_handle.read(cx);
 2096            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2097                pane.items().map(|item| (item.item_id(), item)).collect();
 2098            for entry in pane.activation_history() {
 2099                if entry.timestamp > recent_timestamp
 2100                    && let Some(&item) = item_map.get(&entry.entity_id)
 2101                    && let Some(typed_item) = item.act_as::<T>(cx)
 2102                {
 2103                    recent_timestamp = entry.timestamp;
 2104                    recent_item = Some(typed_item);
 2105                }
 2106            }
 2107        }
 2108        recent_item
 2109    }
 2110
 2111    pub fn recent_navigation_history_iter(
 2112        &self,
 2113        cx: &App,
 2114    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2115        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2116        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2117
 2118        for pane in &self.panes {
 2119            let pane = pane.read(cx);
 2120
 2121            pane.nav_history()
 2122                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2123                    if let Some(fs_path) = &fs_path {
 2124                        abs_paths_opened
 2125                            .entry(fs_path.clone())
 2126                            .or_default()
 2127                            .insert(project_path.clone());
 2128                    }
 2129                    let timestamp = entry.timestamp;
 2130                    match history.entry(project_path) {
 2131                        hash_map::Entry::Occupied(mut entry) => {
 2132                            let (_, old_timestamp) = entry.get();
 2133                            if &timestamp > old_timestamp {
 2134                                entry.insert((fs_path, timestamp));
 2135                            }
 2136                        }
 2137                        hash_map::Entry::Vacant(entry) => {
 2138                            entry.insert((fs_path, timestamp));
 2139                        }
 2140                    }
 2141                });
 2142
 2143            if let Some(item) = pane.active_item()
 2144                && let Some(project_path) = item.project_path(cx)
 2145            {
 2146                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2147
 2148                if let Some(fs_path) = &fs_path {
 2149                    abs_paths_opened
 2150                        .entry(fs_path.clone())
 2151                        .or_default()
 2152                        .insert(project_path.clone());
 2153                }
 2154
 2155                history.insert(project_path, (fs_path, std::usize::MAX));
 2156            }
 2157        }
 2158
 2159        history
 2160            .into_iter()
 2161            .sorted_by_key(|(_, (_, order))| *order)
 2162            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2163            .rev()
 2164            .filter(move |(history_path, abs_path)| {
 2165                let latest_project_path_opened = abs_path
 2166                    .as_ref()
 2167                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2168                    .and_then(|project_paths| {
 2169                        project_paths
 2170                            .iter()
 2171                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2172                    });
 2173
 2174                latest_project_path_opened.is_none_or(|path| path == history_path)
 2175            })
 2176    }
 2177
 2178    pub fn recent_navigation_history(
 2179        &self,
 2180        limit: Option<usize>,
 2181        cx: &App,
 2182    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2183        self.recent_navigation_history_iter(cx)
 2184            .take(limit.unwrap_or(usize::MAX))
 2185            .collect()
 2186    }
 2187
 2188    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2189        for pane in &self.panes {
 2190            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2191        }
 2192    }
 2193
 2194    fn navigate_history(
 2195        &mut self,
 2196        pane: WeakEntity<Pane>,
 2197        mode: NavigationMode,
 2198        window: &mut Window,
 2199        cx: &mut Context<Workspace>,
 2200    ) -> Task<Result<()>> {
 2201        self.navigate_history_impl(pane, mode, window, |history, cx| history.pop(mode, cx), cx)
 2202    }
 2203
 2204    fn navigate_tag_history(
 2205        &mut self,
 2206        pane: WeakEntity<Pane>,
 2207        mode: TagNavigationMode,
 2208        window: &mut Window,
 2209        cx: &mut Context<Workspace>,
 2210    ) -> Task<Result<()>> {
 2211        self.navigate_history_impl(
 2212            pane,
 2213            NavigationMode::Normal,
 2214            window,
 2215            |history, _cx| history.pop_tag(mode),
 2216            cx,
 2217        )
 2218    }
 2219
 2220    fn navigate_history_impl(
 2221        &mut self,
 2222        pane: WeakEntity<Pane>,
 2223        mode: NavigationMode,
 2224        window: &mut Window,
 2225        mut cb: impl FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2226        cx: &mut Context<Workspace>,
 2227    ) -> Task<Result<()>> {
 2228        let to_load = if let Some(pane) = pane.upgrade() {
 2229            pane.update(cx, |pane, cx| {
 2230                window.focus(&pane.focus_handle(cx), cx);
 2231                loop {
 2232                    // Retrieve the weak item handle from the history.
 2233                    let entry = cb(pane.nav_history_mut(), cx)?;
 2234
 2235                    // If the item is still present in this pane, then activate it.
 2236                    if let Some(index) = entry
 2237                        .item
 2238                        .upgrade()
 2239                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2240                    {
 2241                        let prev_active_item_index = pane.active_item_index();
 2242                        pane.nav_history_mut().set_mode(mode);
 2243                        pane.activate_item(index, true, true, window, cx);
 2244                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2245
 2246                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2247                        if let Some(data) = entry.data {
 2248                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2249                        }
 2250
 2251                        if navigated {
 2252                            break None;
 2253                        }
 2254                    } else {
 2255                        // If the item is no longer present in this pane, then retrieve its
 2256                        // path info in order to reopen it.
 2257                        break pane
 2258                            .nav_history()
 2259                            .path_for_item(entry.item.id())
 2260                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2261                    }
 2262                }
 2263            })
 2264        } else {
 2265            None
 2266        };
 2267
 2268        if let Some((project_path, abs_path, entry)) = to_load {
 2269            // If the item was no longer present, then load it again from its previous path, first try the local path
 2270            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2271
 2272            cx.spawn_in(window, async move  |workspace, cx| {
 2273                let open_by_project_path = open_by_project_path.await;
 2274                let mut navigated = false;
 2275                match open_by_project_path
 2276                    .with_context(|| format!("Navigating to {project_path:?}"))
 2277                {
 2278                    Ok((project_entry_id, build_item)) => {
 2279                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2280                            pane.nav_history_mut().set_mode(mode);
 2281                            pane.active_item().map(|p| p.item_id())
 2282                        })?;
 2283
 2284                        pane.update_in(cx, |pane, window, cx| {
 2285                            let item = pane.open_item(
 2286                                project_entry_id,
 2287                                project_path,
 2288                                true,
 2289                                entry.is_preview,
 2290                                true,
 2291                                None,
 2292                                window, cx,
 2293                                build_item,
 2294                            );
 2295                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2296                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2297                            if let Some(data) = entry.data {
 2298                                navigated |= item.navigate(data, window, cx);
 2299                            }
 2300                        })?;
 2301                    }
 2302                    Err(open_by_project_path_e) => {
 2303                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2304                        // and its worktree is now dropped
 2305                        if let Some(abs_path) = abs_path {
 2306                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2307                                pane.nav_history_mut().set_mode(mode);
 2308                                pane.active_item().map(|p| p.item_id())
 2309                            })?;
 2310                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2311                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2312                            })?;
 2313                            match open_by_abs_path
 2314                                .await
 2315                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2316                            {
 2317                                Ok(item) => {
 2318                                    pane.update_in(cx, |pane, window, cx| {
 2319                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2320                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2321                                        if let Some(data) = entry.data {
 2322                                            navigated |= item.navigate(data, window, cx);
 2323                                        }
 2324                                    })?;
 2325                                }
 2326                                Err(open_by_abs_path_e) => {
 2327                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2328                                }
 2329                            }
 2330                        }
 2331                    }
 2332                }
 2333
 2334                if !navigated {
 2335                    workspace
 2336                        .update_in(cx, |workspace, window, cx| {
 2337                            Self::navigate_history(workspace, pane, mode, window, cx)
 2338                        })?
 2339                        .await?;
 2340                }
 2341
 2342                Ok(())
 2343            })
 2344        } else {
 2345            Task::ready(Ok(()))
 2346        }
 2347    }
 2348
 2349    pub fn go_back(
 2350        &mut self,
 2351        pane: WeakEntity<Pane>,
 2352        window: &mut Window,
 2353        cx: &mut Context<Workspace>,
 2354    ) -> Task<Result<()>> {
 2355        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2356    }
 2357
 2358    pub fn go_forward(
 2359        &mut self,
 2360        pane: WeakEntity<Pane>,
 2361        window: &mut Window,
 2362        cx: &mut Context<Workspace>,
 2363    ) -> Task<Result<()>> {
 2364        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2365    }
 2366
 2367    pub fn reopen_closed_item(
 2368        &mut self,
 2369        window: &mut Window,
 2370        cx: &mut Context<Workspace>,
 2371    ) -> Task<Result<()>> {
 2372        self.navigate_history(
 2373            self.active_pane().downgrade(),
 2374            NavigationMode::ReopeningClosedItem,
 2375            window,
 2376            cx,
 2377        )
 2378    }
 2379
 2380    pub fn client(&self) -> &Arc<Client> {
 2381        &self.app_state.client
 2382    }
 2383
 2384    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2385        self.titlebar_item = Some(item);
 2386        cx.notify();
 2387    }
 2388
 2389    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2390        self.on_prompt_for_new_path = Some(prompt)
 2391    }
 2392
 2393    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2394        self.on_prompt_for_open_path = Some(prompt)
 2395    }
 2396
 2397    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2398        self.terminal_provider = Some(Box::new(provider));
 2399    }
 2400
 2401    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2402        self.debugger_provider = Some(Arc::new(provider));
 2403    }
 2404
 2405    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2406        self.debugger_provider.clone()
 2407    }
 2408
 2409    pub fn prompt_for_open_path(
 2410        &mut self,
 2411        path_prompt_options: PathPromptOptions,
 2412        lister: DirectoryLister,
 2413        window: &mut Window,
 2414        cx: &mut Context<Self>,
 2415    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2416        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2417            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2418            let rx = prompt(self, lister, window, cx);
 2419            self.on_prompt_for_open_path = Some(prompt);
 2420            rx
 2421        } else {
 2422            let (tx, rx) = oneshot::channel();
 2423            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2424
 2425            cx.spawn_in(window, async move |workspace, cx| {
 2426                let Ok(result) = abs_path.await else {
 2427                    return Ok(());
 2428                };
 2429
 2430                match result {
 2431                    Ok(result) => {
 2432                        tx.send(result).ok();
 2433                    }
 2434                    Err(err) => {
 2435                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2436                            workspace.show_portal_error(err.to_string(), cx);
 2437                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2438                            let rx = prompt(workspace, lister, window, cx);
 2439                            workspace.on_prompt_for_open_path = Some(prompt);
 2440                            rx
 2441                        })?;
 2442                        if let Ok(path) = rx.await {
 2443                            tx.send(path).ok();
 2444                        }
 2445                    }
 2446                };
 2447                anyhow::Ok(())
 2448            })
 2449            .detach();
 2450
 2451            rx
 2452        }
 2453    }
 2454
 2455    pub fn prompt_for_new_path(
 2456        &mut self,
 2457        lister: DirectoryLister,
 2458        suggested_name: Option<String>,
 2459        window: &mut Window,
 2460        cx: &mut Context<Self>,
 2461    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2462        if self.project.read(cx).is_via_collab()
 2463            || self.project.read(cx).is_via_remote_server()
 2464            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2465        {
 2466            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2467            let rx = prompt(self, lister, suggested_name, window, cx);
 2468            self.on_prompt_for_new_path = Some(prompt);
 2469            return rx;
 2470        }
 2471
 2472        let (tx, rx) = oneshot::channel();
 2473        cx.spawn_in(window, async move |workspace, cx| {
 2474            let abs_path = workspace.update(cx, |workspace, cx| {
 2475                let relative_to = workspace
 2476                    .most_recent_active_path(cx)
 2477                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2478                    .or_else(|| {
 2479                        let project = workspace.project.read(cx);
 2480                        project.visible_worktrees(cx).find_map(|worktree| {
 2481                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2482                        })
 2483                    })
 2484                    .or_else(std::env::home_dir)
 2485                    .unwrap_or_else(|| PathBuf::from(""));
 2486                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2487            })?;
 2488            let abs_path = match abs_path.await? {
 2489                Ok(path) => path,
 2490                Err(err) => {
 2491                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2492                        workspace.show_portal_error(err.to_string(), cx);
 2493
 2494                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2495                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2496                        workspace.on_prompt_for_new_path = Some(prompt);
 2497                        rx
 2498                    })?;
 2499                    if let Ok(path) = rx.await {
 2500                        tx.send(path).ok();
 2501                    }
 2502                    return anyhow::Ok(());
 2503                }
 2504            };
 2505
 2506            tx.send(abs_path.map(|path| vec![path])).ok();
 2507            anyhow::Ok(())
 2508        })
 2509        .detach();
 2510
 2511        rx
 2512    }
 2513
 2514    pub fn titlebar_item(&self) -> Option<AnyView> {
 2515        self.titlebar_item.clone()
 2516    }
 2517
 2518    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2519    /// When set, git-related operations should use this worktree instead of deriving
 2520    /// the active worktree from the focused file.
 2521    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2522        self.active_worktree_override
 2523    }
 2524
 2525    pub fn set_active_worktree_override(
 2526        &mut self,
 2527        worktree_id: Option<WorktreeId>,
 2528        cx: &mut Context<Self>,
 2529    ) {
 2530        self.active_worktree_override = worktree_id;
 2531        cx.notify();
 2532    }
 2533
 2534    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2535        self.active_worktree_override = None;
 2536        cx.notify();
 2537    }
 2538
 2539    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2540    ///
 2541    /// If the given workspace has a local project, then it will be passed
 2542    /// to the callback. Otherwise, a new empty window will be created.
 2543    pub fn with_local_workspace<T, F>(
 2544        &mut self,
 2545        window: &mut Window,
 2546        cx: &mut Context<Self>,
 2547        callback: F,
 2548    ) -> Task<Result<T>>
 2549    where
 2550        T: 'static,
 2551        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2552    {
 2553        if self.project.read(cx).is_local() {
 2554            Task::ready(Ok(callback(self, window, cx)))
 2555        } else {
 2556            let env = self.project.read(cx).cli_environment(cx);
 2557            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2558            cx.spawn_in(window, async move |_vh, cx| {
 2559                let (multi_workspace_window, _) = task.await?;
 2560                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2561                    let workspace = multi_workspace.workspace().clone();
 2562                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2563                })
 2564            })
 2565        }
 2566    }
 2567
 2568    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2569    ///
 2570    /// If the given workspace has a local project, then it will be passed
 2571    /// to the callback. Otherwise, a new empty window will be created.
 2572    pub fn with_local_or_wsl_workspace<T, F>(
 2573        &mut self,
 2574        window: &mut Window,
 2575        cx: &mut Context<Self>,
 2576        callback: F,
 2577    ) -> Task<Result<T>>
 2578    where
 2579        T: 'static,
 2580        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2581    {
 2582        let project = self.project.read(cx);
 2583        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2584            Task::ready(Ok(callback(self, window, cx)))
 2585        } else {
 2586            let env = self.project.read(cx).cli_environment(cx);
 2587            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2588            cx.spawn_in(window, async move |_vh, cx| {
 2589                let (multi_workspace_window, _) = task.await?;
 2590                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2591                    let workspace = multi_workspace.workspace().clone();
 2592                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2593                })
 2594            })
 2595        }
 2596    }
 2597
 2598    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2599        self.project.read(cx).worktrees(cx)
 2600    }
 2601
 2602    pub fn visible_worktrees<'a>(
 2603        &self,
 2604        cx: &'a App,
 2605    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2606        self.project.read(cx).visible_worktrees(cx)
 2607    }
 2608
 2609    #[cfg(any(test, feature = "test-support"))]
 2610    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2611        let futures = self
 2612            .worktrees(cx)
 2613            .filter_map(|worktree| worktree.read(cx).as_local())
 2614            .map(|worktree| worktree.scan_complete())
 2615            .collect::<Vec<_>>();
 2616        async move {
 2617            for future in futures {
 2618                future.await;
 2619            }
 2620        }
 2621    }
 2622
 2623    pub fn close_global(cx: &mut App) {
 2624        cx.defer(|cx| {
 2625            cx.windows().iter().find(|window| {
 2626                window
 2627                    .update(cx, |_, window, _| {
 2628                        if window.is_window_active() {
 2629                            //This can only get called when the window's project connection has been lost
 2630                            //so we don't need to prompt the user for anything and instead just close the window
 2631                            window.remove_window();
 2632                            true
 2633                        } else {
 2634                            false
 2635                        }
 2636                    })
 2637                    .unwrap_or(false)
 2638            });
 2639        });
 2640    }
 2641
 2642    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2643        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2644        cx.spawn_in(window, async move |_, cx| {
 2645            if prepare.await? {
 2646                cx.update(|window, _cx| window.remove_window())?;
 2647            }
 2648            anyhow::Ok(())
 2649        })
 2650        .detach_and_log_err(cx)
 2651    }
 2652
 2653    pub fn move_focused_panel_to_next_position(
 2654        &mut self,
 2655        _: &MoveFocusedPanelToNextPosition,
 2656        window: &mut Window,
 2657        cx: &mut Context<Self>,
 2658    ) {
 2659        let docks = self.all_docks();
 2660        let active_dock = docks
 2661            .into_iter()
 2662            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2663
 2664        if let Some(dock) = active_dock {
 2665            dock.update(cx, |dock, cx| {
 2666                let active_panel = dock
 2667                    .active_panel()
 2668                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2669
 2670                if let Some(panel) = active_panel {
 2671                    panel.move_to_next_position(window, cx);
 2672                }
 2673            })
 2674        }
 2675    }
 2676
 2677    pub fn prepare_to_close(
 2678        &mut self,
 2679        close_intent: CloseIntent,
 2680        window: &mut Window,
 2681        cx: &mut Context<Self>,
 2682    ) -> Task<Result<bool>> {
 2683        let active_call = self.active_call().cloned();
 2684
 2685        cx.spawn_in(window, async move |this, cx| {
 2686            this.update(cx, |this, _| {
 2687                if close_intent == CloseIntent::CloseWindow {
 2688                    this.removing = true;
 2689                }
 2690            })?;
 2691
 2692            let workspace_count = cx.update(|_window, cx| {
 2693                cx.windows()
 2694                    .iter()
 2695                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 2696                    .count()
 2697            })?;
 2698
 2699            #[cfg(target_os = "macos")]
 2700            let save_last_workspace = false;
 2701
 2702            // On Linux and Windows, closing the last window should restore the last workspace.
 2703            #[cfg(not(target_os = "macos"))]
 2704            let save_last_workspace = {
 2705                let remaining_workspaces = cx.update(|_window, cx| {
 2706                    cx.windows()
 2707                        .iter()
 2708                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 2709                        .filter_map(|multi_workspace| {
 2710                            multi_workspace
 2711                                .update(cx, |multi_workspace, _, cx| {
 2712                                    multi_workspace.workspace().read(cx).removing
 2713                                })
 2714                                .ok()
 2715                        })
 2716                        .filter(|removing| !removing)
 2717                        .count()
 2718                })?;
 2719
 2720                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2721            };
 2722
 2723            if let Some(active_call) = active_call
 2724                && workspace_count == 1
 2725                && active_call.read_with(cx, |call, _| call.room().is_some())
 2726            {
 2727                if close_intent == CloseIntent::CloseWindow {
 2728                    let answer = cx.update(|window, cx| {
 2729                        window.prompt(
 2730                            PromptLevel::Warning,
 2731                            "Do you want to leave the current call?",
 2732                            None,
 2733                            &["Close window and hang up", "Cancel"],
 2734                            cx,
 2735                        )
 2736                    })?;
 2737
 2738                    if answer.await.log_err() == Some(1) {
 2739                        return anyhow::Ok(false);
 2740                    } else {
 2741                        active_call
 2742                            .update(cx, |call, cx| call.hang_up(cx))
 2743                            .await
 2744                            .log_err();
 2745                    }
 2746                }
 2747                if close_intent == CloseIntent::ReplaceWindow {
 2748                    _ = active_call.update(cx, |this, cx| {
 2749                        let multi_workspace = cx
 2750                            .windows()
 2751                            .iter()
 2752                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 2753                            .next()
 2754                            .unwrap();
 2755                        let project = multi_workspace
 2756                            .read(cx)?
 2757                            .workspace()
 2758                            .read(cx)
 2759                            .project
 2760                            .clone();
 2761                        if project.read(cx).is_shared() {
 2762                            this.unshare_project(project, cx)?;
 2763                        }
 2764                        Ok::<_, anyhow::Error>(())
 2765                    })?;
 2766                }
 2767            }
 2768
 2769            let save_result = this
 2770                .update_in(cx, |this, window, cx| {
 2771                    this.save_all_internal(SaveIntent::Close, window, cx)
 2772                })?
 2773                .await;
 2774
 2775            // If we're not quitting, but closing, we remove the workspace from
 2776            // the current session.
 2777            if close_intent != CloseIntent::Quit
 2778                && !save_last_workspace
 2779                && save_result.as_ref().is_ok_and(|&res| res)
 2780            {
 2781                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2782                    .await;
 2783            }
 2784
 2785            save_result
 2786        })
 2787    }
 2788
 2789    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2790        self.save_all_internal(
 2791            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2792            window,
 2793            cx,
 2794        )
 2795        .detach_and_log_err(cx);
 2796    }
 2797
 2798    fn send_keystrokes(
 2799        &mut self,
 2800        action: &SendKeystrokes,
 2801        window: &mut Window,
 2802        cx: &mut Context<Self>,
 2803    ) {
 2804        let keystrokes: Vec<Keystroke> = action
 2805            .0
 2806            .split(' ')
 2807            .flat_map(|k| Keystroke::parse(k).log_err())
 2808            .map(|k| {
 2809                cx.keyboard_mapper()
 2810                    .map_key_equivalent(k, false)
 2811                    .inner()
 2812                    .clone()
 2813            })
 2814            .collect();
 2815        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2816    }
 2817
 2818    pub fn send_keystrokes_impl(
 2819        &mut self,
 2820        keystrokes: Vec<Keystroke>,
 2821        window: &mut Window,
 2822        cx: &mut Context<Self>,
 2823    ) -> Shared<Task<()>> {
 2824        let mut state = self.dispatching_keystrokes.borrow_mut();
 2825        if !state.dispatched.insert(keystrokes.clone()) {
 2826            cx.propagate();
 2827            return state.task.clone().unwrap();
 2828        }
 2829
 2830        state.queue.extend(keystrokes);
 2831
 2832        let keystrokes = self.dispatching_keystrokes.clone();
 2833        if state.task.is_none() {
 2834            state.task = Some(
 2835                window
 2836                    .spawn(cx, async move |cx| {
 2837                        // limit to 100 keystrokes to avoid infinite recursion.
 2838                        for _ in 0..100 {
 2839                            let mut state = keystrokes.borrow_mut();
 2840                            let Some(keystroke) = state.queue.pop_front() else {
 2841                                state.dispatched.clear();
 2842                                state.task.take();
 2843                                return;
 2844                            };
 2845                            drop(state);
 2846                            cx.update(|window, cx| {
 2847                                let focused = window.focused(cx);
 2848                                window.dispatch_keystroke(keystroke.clone(), cx);
 2849                                if window.focused(cx) != focused {
 2850                                    // dispatch_keystroke may cause the focus to change.
 2851                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2852                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2853                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2854                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2855                                    // )
 2856                                    window.draw(cx).clear();
 2857                                }
 2858                            })
 2859                            .ok();
 2860                        }
 2861
 2862                        *keystrokes.borrow_mut() = Default::default();
 2863                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2864                    })
 2865                    .shared(),
 2866            );
 2867        }
 2868        state.task.clone().unwrap()
 2869    }
 2870
 2871    fn save_all_internal(
 2872        &mut self,
 2873        mut save_intent: SaveIntent,
 2874        window: &mut Window,
 2875        cx: &mut Context<Self>,
 2876    ) -> Task<Result<bool>> {
 2877        if self.project.read(cx).is_disconnected(cx) {
 2878            return Task::ready(Ok(true));
 2879        }
 2880        let dirty_items = self
 2881            .panes
 2882            .iter()
 2883            .flat_map(|pane| {
 2884                pane.read(cx).items().filter_map(|item| {
 2885                    if item.is_dirty(cx) {
 2886                        item.tab_content_text(0, cx);
 2887                        Some((pane.downgrade(), item.boxed_clone()))
 2888                    } else {
 2889                        None
 2890                    }
 2891                })
 2892            })
 2893            .collect::<Vec<_>>();
 2894
 2895        let project = self.project.clone();
 2896        cx.spawn_in(window, async move |workspace, cx| {
 2897            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2898                let (serialize_tasks, remaining_dirty_items) =
 2899                    workspace.update_in(cx, |workspace, window, cx| {
 2900                        let mut remaining_dirty_items = Vec::new();
 2901                        let mut serialize_tasks = Vec::new();
 2902                        for (pane, item) in dirty_items {
 2903                            if let Some(task) = item
 2904                                .to_serializable_item_handle(cx)
 2905                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2906                            {
 2907                                serialize_tasks.push(task);
 2908                            } else {
 2909                                remaining_dirty_items.push((pane, item));
 2910                            }
 2911                        }
 2912                        (serialize_tasks, remaining_dirty_items)
 2913                    })?;
 2914
 2915                futures::future::try_join_all(serialize_tasks).await?;
 2916
 2917                if remaining_dirty_items.len() > 1 {
 2918                    let answer = workspace.update_in(cx, |_, window, cx| {
 2919                        let detail = Pane::file_names_for_prompt(
 2920                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2921                            cx,
 2922                        );
 2923                        window.prompt(
 2924                            PromptLevel::Warning,
 2925                            "Do you want to save all changes in the following files?",
 2926                            Some(&detail),
 2927                            &["Save all", "Discard all", "Cancel"],
 2928                            cx,
 2929                        )
 2930                    })?;
 2931                    match answer.await.log_err() {
 2932                        Some(0) => save_intent = SaveIntent::SaveAll,
 2933                        Some(1) => save_intent = SaveIntent::Skip,
 2934                        Some(2) => return Ok(false),
 2935                        _ => {}
 2936                    }
 2937                }
 2938
 2939                remaining_dirty_items
 2940            } else {
 2941                dirty_items
 2942            };
 2943
 2944            for (pane, item) in dirty_items {
 2945                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2946                    (
 2947                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2948                        item.project_entry_ids(cx),
 2949                    )
 2950                })?;
 2951                if (singleton || !project_entry_ids.is_empty())
 2952                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2953                {
 2954                    return Ok(false);
 2955                }
 2956            }
 2957            Ok(true)
 2958        })
 2959    }
 2960
 2961    pub fn open_workspace_for_paths(
 2962        &mut self,
 2963        replace_current_window: bool,
 2964        paths: Vec<PathBuf>,
 2965        window: &mut Window,
 2966        cx: &mut Context<Self>,
 2967    ) -> Task<Result<()>> {
 2968        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 2969        let is_remote = self.project.read(cx).is_via_collab();
 2970        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2971        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2972
 2973        let window_to_replace = if replace_current_window {
 2974            window_handle
 2975        } else if is_remote || has_worktree || has_dirty_items {
 2976            None
 2977        } else {
 2978            window_handle
 2979        };
 2980        let app_state = self.app_state.clone();
 2981
 2982        cx.spawn(async move |_, cx| {
 2983            cx.update(|cx| {
 2984                open_paths(
 2985                    &paths,
 2986                    app_state,
 2987                    OpenOptions {
 2988                        replace_window: window_to_replace,
 2989                        ..Default::default()
 2990                    },
 2991                    cx,
 2992                )
 2993            })
 2994            .await?;
 2995            Ok(())
 2996        })
 2997    }
 2998
 2999    #[allow(clippy::type_complexity)]
 3000    pub fn open_paths(
 3001        &mut self,
 3002        mut abs_paths: Vec<PathBuf>,
 3003        options: OpenOptions,
 3004        pane: Option<WeakEntity<Pane>>,
 3005        window: &mut Window,
 3006        cx: &mut Context<Self>,
 3007    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3008        let fs = self.app_state.fs.clone();
 3009
 3010        let caller_ordered_abs_paths = abs_paths.clone();
 3011
 3012        // Sort the paths to ensure we add worktrees for parents before their children.
 3013        abs_paths.sort_unstable();
 3014        cx.spawn_in(window, async move |this, cx| {
 3015            let mut tasks = Vec::with_capacity(abs_paths.len());
 3016
 3017            for abs_path in &abs_paths {
 3018                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3019                    OpenVisible::All => Some(true),
 3020                    OpenVisible::None => Some(false),
 3021                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3022                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3023                        Some(None) => Some(true),
 3024                        None => None,
 3025                    },
 3026                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3027                        Some(Some(metadata)) => Some(metadata.is_dir),
 3028                        Some(None) => Some(false),
 3029                        None => None,
 3030                    },
 3031                };
 3032                let project_path = match visible {
 3033                    Some(visible) => match this
 3034                        .update(cx, |this, cx| {
 3035                            Workspace::project_path_for_path(
 3036                                this.project.clone(),
 3037                                abs_path,
 3038                                visible,
 3039                                cx,
 3040                            )
 3041                        })
 3042                        .log_err()
 3043                    {
 3044                        Some(project_path) => project_path.await.log_err(),
 3045                        None => None,
 3046                    },
 3047                    None => None,
 3048                };
 3049
 3050                let this = this.clone();
 3051                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3052                let fs = fs.clone();
 3053                let pane = pane.clone();
 3054                let task = cx.spawn(async move |cx| {
 3055                    let (_worktree, project_path) = project_path?;
 3056                    if fs.is_dir(&abs_path).await {
 3057                        // Opening a directory should not race to update the active entry.
 3058                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3059                        None
 3060                    } else {
 3061                        Some(
 3062                            this.update_in(cx, |this, window, cx| {
 3063                                this.open_path(
 3064                                    project_path,
 3065                                    pane,
 3066                                    options.focus.unwrap_or(true),
 3067                                    window,
 3068                                    cx,
 3069                                )
 3070                            })
 3071                            .ok()?
 3072                            .await,
 3073                        )
 3074                    }
 3075                });
 3076                tasks.push(task);
 3077            }
 3078
 3079            let results = futures::future::join_all(tasks).await;
 3080
 3081            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3082            let mut winner: Option<(PathBuf, bool)> = None;
 3083            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3084                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3085                    if !metadata.is_dir {
 3086                        winner = Some((abs_path, false));
 3087                        break;
 3088                    }
 3089                    if winner.is_none() {
 3090                        winner = Some((abs_path, true));
 3091                    }
 3092                } else if winner.is_none() {
 3093                    winner = Some((abs_path, false));
 3094                }
 3095            }
 3096
 3097            // Compute the winner entry id on the foreground thread and emit once, after all
 3098            // paths finish opening. This avoids races between concurrently-opening paths
 3099            // (directories in particular) and makes the resulting project panel selection
 3100            // deterministic.
 3101            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3102                'emit_winner: {
 3103                    let winner_abs_path: Arc<Path> =
 3104                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3105
 3106                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3107                        OpenVisible::All => true,
 3108                        OpenVisible::None => false,
 3109                        OpenVisible::OnlyFiles => !winner_is_dir,
 3110                        OpenVisible::OnlyDirectories => winner_is_dir,
 3111                    };
 3112
 3113                    let Some(worktree_task) = this
 3114                        .update(cx, |workspace, cx| {
 3115                            workspace.project.update(cx, |project, cx| {
 3116                                project.find_or_create_worktree(
 3117                                    winner_abs_path.as_ref(),
 3118                                    visible,
 3119                                    cx,
 3120                                )
 3121                            })
 3122                        })
 3123                        .ok()
 3124                    else {
 3125                        break 'emit_winner;
 3126                    };
 3127
 3128                    let Ok((worktree, _)) = worktree_task.await else {
 3129                        break 'emit_winner;
 3130                    };
 3131
 3132                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3133                        let worktree = worktree.read(cx);
 3134                        let worktree_abs_path = worktree.abs_path();
 3135                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3136                            worktree.root_entry()
 3137                        } else {
 3138                            winner_abs_path
 3139                                .strip_prefix(worktree_abs_path.as_ref())
 3140                                .ok()
 3141                                .and_then(|relative_path| {
 3142                                    let relative_path =
 3143                                        RelPath::new(relative_path, PathStyle::local())
 3144                                            .log_err()?;
 3145                                    worktree.entry_for_path(&relative_path)
 3146                                })
 3147                        }?;
 3148                        Some(entry.id)
 3149                    }) else {
 3150                        break 'emit_winner;
 3151                    };
 3152
 3153                    this.update(cx, |workspace, cx| {
 3154                        workspace.project.update(cx, |_, cx| {
 3155                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3156                        });
 3157                    })
 3158                    .ok();
 3159                }
 3160            }
 3161
 3162            results
 3163        })
 3164    }
 3165
 3166    pub fn open_resolved_path(
 3167        &mut self,
 3168        path: ResolvedPath,
 3169        window: &mut Window,
 3170        cx: &mut Context<Self>,
 3171    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3172        match path {
 3173            ResolvedPath::ProjectPath { project_path, .. } => {
 3174                self.open_path(project_path, None, true, window, cx)
 3175            }
 3176            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3177                PathBuf::from(path),
 3178                OpenOptions {
 3179                    visible: Some(OpenVisible::None),
 3180                    ..Default::default()
 3181                },
 3182                window,
 3183                cx,
 3184            ),
 3185        }
 3186    }
 3187
 3188    pub fn absolute_path_of_worktree(
 3189        &self,
 3190        worktree_id: WorktreeId,
 3191        cx: &mut Context<Self>,
 3192    ) -> Option<PathBuf> {
 3193        self.project
 3194            .read(cx)
 3195            .worktree_for_id(worktree_id, cx)
 3196            // TODO: use `abs_path` or `root_dir`
 3197            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3198    }
 3199
 3200    fn add_folder_to_project(
 3201        &mut self,
 3202        _: &AddFolderToProject,
 3203        window: &mut Window,
 3204        cx: &mut Context<Self>,
 3205    ) {
 3206        let project = self.project.read(cx);
 3207        if project.is_via_collab() {
 3208            self.show_error(
 3209                &anyhow!("You cannot add folders to someone else's project"),
 3210                cx,
 3211            );
 3212            return;
 3213        }
 3214        let paths = self.prompt_for_open_path(
 3215            PathPromptOptions {
 3216                files: false,
 3217                directories: true,
 3218                multiple: true,
 3219                prompt: None,
 3220            },
 3221            DirectoryLister::Project(self.project.clone()),
 3222            window,
 3223            cx,
 3224        );
 3225        cx.spawn_in(window, async move |this, cx| {
 3226            if let Some(paths) = paths.await.log_err().flatten() {
 3227                let results = this
 3228                    .update_in(cx, |this, window, cx| {
 3229                        this.open_paths(
 3230                            paths,
 3231                            OpenOptions {
 3232                                visible: Some(OpenVisible::All),
 3233                                ..Default::default()
 3234                            },
 3235                            None,
 3236                            window,
 3237                            cx,
 3238                        )
 3239                    })?
 3240                    .await;
 3241                for result in results.into_iter().flatten() {
 3242                    result.log_err();
 3243                }
 3244            }
 3245            anyhow::Ok(())
 3246        })
 3247        .detach_and_log_err(cx);
 3248    }
 3249
 3250    pub fn project_path_for_path(
 3251        project: Entity<Project>,
 3252        abs_path: &Path,
 3253        visible: bool,
 3254        cx: &mut App,
 3255    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3256        let entry = project.update(cx, |project, cx| {
 3257            project.find_or_create_worktree(abs_path, visible, cx)
 3258        });
 3259        cx.spawn(async move |cx| {
 3260            let (worktree, path) = entry.await?;
 3261            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3262            Ok((worktree, ProjectPath { worktree_id, path }))
 3263        })
 3264    }
 3265
 3266    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3267        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3268    }
 3269
 3270    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3271        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3272    }
 3273
 3274    pub fn items_of_type<'a, T: Item>(
 3275        &'a self,
 3276        cx: &'a App,
 3277    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3278        self.panes
 3279            .iter()
 3280            .flat_map(|pane| pane.read(cx).items_of_type())
 3281    }
 3282
 3283    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3284        self.active_pane().read(cx).active_item()
 3285    }
 3286
 3287    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3288        let item = self.active_item(cx)?;
 3289        item.to_any_view().downcast::<I>().ok()
 3290    }
 3291
 3292    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3293        self.active_item(cx).and_then(|item| item.project_path(cx))
 3294    }
 3295
 3296    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3297        self.recent_navigation_history_iter(cx)
 3298            .filter_map(|(path, abs_path)| {
 3299                let worktree = self
 3300                    .project
 3301                    .read(cx)
 3302                    .worktree_for_id(path.worktree_id, cx)?;
 3303                if worktree.read(cx).is_visible() {
 3304                    abs_path
 3305                } else {
 3306                    None
 3307                }
 3308            })
 3309            .next()
 3310    }
 3311
 3312    pub fn save_active_item(
 3313        &mut self,
 3314        save_intent: SaveIntent,
 3315        window: &mut Window,
 3316        cx: &mut App,
 3317    ) -> Task<Result<()>> {
 3318        let project = self.project.clone();
 3319        let pane = self.active_pane();
 3320        let item = pane.read(cx).active_item();
 3321        let pane = pane.downgrade();
 3322
 3323        window.spawn(cx, async move |cx| {
 3324            if let Some(item) = item {
 3325                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3326                    .await
 3327                    .map(|_| ())
 3328            } else {
 3329                Ok(())
 3330            }
 3331        })
 3332    }
 3333
 3334    pub fn close_inactive_items_and_panes(
 3335        &mut self,
 3336        action: &CloseInactiveTabsAndPanes,
 3337        window: &mut Window,
 3338        cx: &mut Context<Self>,
 3339    ) {
 3340        if let Some(task) = self.close_all_internal(
 3341            true,
 3342            action.save_intent.unwrap_or(SaveIntent::Close),
 3343            window,
 3344            cx,
 3345        ) {
 3346            task.detach_and_log_err(cx)
 3347        }
 3348    }
 3349
 3350    pub fn close_all_items_and_panes(
 3351        &mut self,
 3352        action: &CloseAllItemsAndPanes,
 3353        window: &mut Window,
 3354        cx: &mut Context<Self>,
 3355    ) {
 3356        if let Some(task) = self.close_all_internal(
 3357            false,
 3358            action.save_intent.unwrap_or(SaveIntent::Close),
 3359            window,
 3360            cx,
 3361        ) {
 3362            task.detach_and_log_err(cx)
 3363        }
 3364    }
 3365
 3366    /// Closes the active item across all panes.
 3367    pub fn close_item_in_all_panes(
 3368        &mut self,
 3369        action: &CloseItemInAllPanes,
 3370        window: &mut Window,
 3371        cx: &mut Context<Self>,
 3372    ) {
 3373        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3374            return;
 3375        };
 3376
 3377        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3378        let close_pinned = action.close_pinned;
 3379
 3380        if let Some(project_path) = active_item.project_path(cx) {
 3381            self.close_items_with_project_path(
 3382                &project_path,
 3383                save_intent,
 3384                close_pinned,
 3385                window,
 3386                cx,
 3387            );
 3388        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3389            let item_id = active_item.item_id();
 3390            self.active_pane().update(cx, |pane, cx| {
 3391                pane.close_item_by_id(item_id, save_intent, window, cx)
 3392                    .detach_and_log_err(cx);
 3393            });
 3394        }
 3395    }
 3396
 3397    /// Closes all items with the given project path across all panes.
 3398    pub fn close_items_with_project_path(
 3399        &mut self,
 3400        project_path: &ProjectPath,
 3401        save_intent: SaveIntent,
 3402        close_pinned: bool,
 3403        window: &mut Window,
 3404        cx: &mut Context<Self>,
 3405    ) {
 3406        let panes = self.panes().to_vec();
 3407        for pane in panes {
 3408            pane.update(cx, |pane, cx| {
 3409                pane.close_items_for_project_path(
 3410                    project_path,
 3411                    save_intent,
 3412                    close_pinned,
 3413                    window,
 3414                    cx,
 3415                )
 3416                .detach_and_log_err(cx);
 3417            });
 3418        }
 3419    }
 3420
 3421    fn close_all_internal(
 3422        &mut self,
 3423        retain_active_pane: bool,
 3424        save_intent: SaveIntent,
 3425        window: &mut Window,
 3426        cx: &mut Context<Self>,
 3427    ) -> Option<Task<Result<()>>> {
 3428        let current_pane = self.active_pane();
 3429
 3430        let mut tasks = Vec::new();
 3431
 3432        if retain_active_pane {
 3433            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3434                pane.close_other_items(
 3435                    &CloseOtherItems {
 3436                        save_intent: None,
 3437                        close_pinned: false,
 3438                    },
 3439                    None,
 3440                    window,
 3441                    cx,
 3442                )
 3443            });
 3444
 3445            tasks.push(current_pane_close);
 3446        }
 3447
 3448        for pane in self.panes() {
 3449            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3450                continue;
 3451            }
 3452
 3453            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3454                pane.close_all_items(
 3455                    &CloseAllItems {
 3456                        save_intent: Some(save_intent),
 3457                        close_pinned: false,
 3458                    },
 3459                    window,
 3460                    cx,
 3461                )
 3462            });
 3463
 3464            tasks.push(close_pane_items)
 3465        }
 3466
 3467        if tasks.is_empty() {
 3468            None
 3469        } else {
 3470            Some(cx.spawn_in(window, async move |_, _| {
 3471                for task in tasks {
 3472                    task.await?
 3473                }
 3474                Ok(())
 3475            }))
 3476        }
 3477    }
 3478
 3479    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3480        self.dock_at_position(position).read(cx).is_open()
 3481    }
 3482
 3483    pub fn toggle_dock(
 3484        &mut self,
 3485        dock_side: DockPosition,
 3486        window: &mut Window,
 3487        cx: &mut Context<Self>,
 3488    ) {
 3489        let mut focus_center = false;
 3490        let mut reveal_dock = false;
 3491
 3492        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3493        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3494
 3495        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3496            telemetry::event!(
 3497                "Panel Button Clicked",
 3498                name = panel.persistent_name(),
 3499                toggle_state = !was_visible
 3500            );
 3501        }
 3502        if was_visible {
 3503            self.save_open_dock_positions(cx);
 3504        }
 3505
 3506        let dock = self.dock_at_position(dock_side);
 3507        dock.update(cx, |dock, cx| {
 3508            dock.set_open(!was_visible, window, cx);
 3509
 3510            if dock.active_panel().is_none() {
 3511                let Some(panel_ix) = dock
 3512                    .first_enabled_panel_idx(cx)
 3513                    .log_with_level(log::Level::Info)
 3514                else {
 3515                    return;
 3516                };
 3517                dock.activate_panel(panel_ix, window, cx);
 3518            }
 3519
 3520            if let Some(active_panel) = dock.active_panel() {
 3521                if was_visible {
 3522                    if active_panel
 3523                        .panel_focus_handle(cx)
 3524                        .contains_focused(window, cx)
 3525                    {
 3526                        focus_center = true;
 3527                    }
 3528                } else {
 3529                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3530                    window.focus(focus_handle, cx);
 3531                    reveal_dock = true;
 3532                }
 3533            }
 3534        });
 3535
 3536        if reveal_dock {
 3537            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3538        }
 3539
 3540        if focus_center {
 3541            self.active_pane
 3542                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3543        }
 3544
 3545        cx.notify();
 3546        self.serialize_workspace(window, cx);
 3547    }
 3548
 3549    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3550        self.all_docks().into_iter().find(|&dock| {
 3551            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3552        })
 3553    }
 3554
 3555    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3556        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3557            self.save_open_dock_positions(cx);
 3558            dock.update(cx, |dock, cx| {
 3559                dock.set_open(false, window, cx);
 3560            });
 3561            return true;
 3562        }
 3563        false
 3564    }
 3565
 3566    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3567        self.save_open_dock_positions(cx);
 3568        for dock in self.all_docks() {
 3569            dock.update(cx, |dock, cx| {
 3570                dock.set_open(false, window, cx);
 3571            });
 3572        }
 3573
 3574        cx.focus_self(window);
 3575        cx.notify();
 3576        self.serialize_workspace(window, cx);
 3577    }
 3578
 3579    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3580        self.all_docks()
 3581            .into_iter()
 3582            .filter_map(|dock| {
 3583                let dock_ref = dock.read(cx);
 3584                if dock_ref.is_open() {
 3585                    Some(dock_ref.position())
 3586                } else {
 3587                    None
 3588                }
 3589            })
 3590            .collect()
 3591    }
 3592
 3593    /// Saves the positions of currently open docks.
 3594    ///
 3595    /// Updates `last_open_dock_positions` with positions of all currently open
 3596    /// docks, to later be restored by the 'Toggle All Docks' action.
 3597    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3598        let open_dock_positions = self.get_open_dock_positions(cx);
 3599        if !open_dock_positions.is_empty() {
 3600            self.last_open_dock_positions = open_dock_positions;
 3601        }
 3602    }
 3603
 3604    /// Toggles all docks between open and closed states.
 3605    ///
 3606    /// If any docks are open, closes all and remembers their positions. If all
 3607    /// docks are closed, restores the last remembered dock configuration.
 3608    fn toggle_all_docks(
 3609        &mut self,
 3610        _: &ToggleAllDocks,
 3611        window: &mut Window,
 3612        cx: &mut Context<Self>,
 3613    ) {
 3614        let open_dock_positions = self.get_open_dock_positions(cx);
 3615
 3616        if !open_dock_positions.is_empty() {
 3617            self.close_all_docks(window, cx);
 3618        } else if !self.last_open_dock_positions.is_empty() {
 3619            self.restore_last_open_docks(window, cx);
 3620        }
 3621    }
 3622
 3623    /// Reopens docks from the most recently remembered configuration.
 3624    ///
 3625    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3626    /// and clears the stored positions.
 3627    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3628        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3629
 3630        for position in positions_to_open {
 3631            let dock = self.dock_at_position(position);
 3632            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3633        }
 3634
 3635        cx.focus_self(window);
 3636        cx.notify();
 3637        self.serialize_workspace(window, cx);
 3638    }
 3639
 3640    /// Transfer focus to the panel of the given type.
 3641    pub fn focus_panel<T: Panel>(
 3642        &mut self,
 3643        window: &mut Window,
 3644        cx: &mut Context<Self>,
 3645    ) -> Option<Entity<T>> {
 3646        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3647        panel.to_any().downcast().ok()
 3648    }
 3649
 3650    /// Focus the panel of the given type if it isn't already focused. If it is
 3651    /// already focused, then transfer focus back to the workspace center.
 3652    pub fn toggle_panel_focus<T: Panel>(
 3653        &mut self,
 3654        window: &mut Window,
 3655        cx: &mut Context<Self>,
 3656    ) -> bool {
 3657        let mut did_focus_panel = false;
 3658        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3659            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3660            did_focus_panel
 3661        });
 3662
 3663        telemetry::event!(
 3664            "Panel Button Clicked",
 3665            name = T::persistent_name(),
 3666            toggle_state = did_focus_panel
 3667        );
 3668
 3669        did_focus_panel
 3670    }
 3671
 3672    pub fn activate_panel_for_proto_id(
 3673        &mut self,
 3674        panel_id: PanelId,
 3675        window: &mut Window,
 3676        cx: &mut Context<Self>,
 3677    ) -> Option<Arc<dyn PanelHandle>> {
 3678        let mut panel = None;
 3679        for dock in self.all_docks() {
 3680            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3681                panel = dock.update(cx, |dock, cx| {
 3682                    dock.activate_panel(panel_index, window, cx);
 3683                    dock.set_open(true, window, cx);
 3684                    dock.active_panel().cloned()
 3685                });
 3686                break;
 3687            }
 3688        }
 3689
 3690        if panel.is_some() {
 3691            cx.notify();
 3692            self.serialize_workspace(window, cx);
 3693        }
 3694
 3695        panel
 3696    }
 3697
 3698    /// Focus or unfocus the given panel type, depending on the given callback.
 3699    fn focus_or_unfocus_panel<T: Panel>(
 3700        &mut self,
 3701        window: &mut Window,
 3702        cx: &mut Context<Self>,
 3703        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3704    ) -> Option<Arc<dyn PanelHandle>> {
 3705        let mut result_panel = None;
 3706        let mut serialize = false;
 3707        for dock in self.all_docks() {
 3708            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3709                let mut focus_center = false;
 3710                let panel = dock.update(cx, |dock, cx| {
 3711                    dock.activate_panel(panel_index, window, cx);
 3712
 3713                    let panel = dock.active_panel().cloned();
 3714                    if let Some(panel) = panel.as_ref() {
 3715                        if should_focus(&**panel, window, cx) {
 3716                            dock.set_open(true, window, cx);
 3717                            panel.panel_focus_handle(cx).focus(window, cx);
 3718                        } else {
 3719                            focus_center = true;
 3720                        }
 3721                    }
 3722                    panel
 3723                });
 3724
 3725                if focus_center {
 3726                    self.active_pane
 3727                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3728                }
 3729
 3730                result_panel = panel;
 3731                serialize = true;
 3732                break;
 3733            }
 3734        }
 3735
 3736        if serialize {
 3737            self.serialize_workspace(window, cx);
 3738        }
 3739
 3740        cx.notify();
 3741        result_panel
 3742    }
 3743
 3744    /// Open the panel of the given type
 3745    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3746        for dock in self.all_docks() {
 3747            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3748                dock.update(cx, |dock, cx| {
 3749                    dock.activate_panel(panel_index, window, cx);
 3750                    dock.set_open(true, window, cx);
 3751                });
 3752            }
 3753        }
 3754    }
 3755
 3756    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3757        for dock in self.all_docks().iter() {
 3758            dock.update(cx, |dock, cx| {
 3759                if dock.panel::<T>().is_some() {
 3760                    dock.set_open(false, window, cx)
 3761                }
 3762            })
 3763        }
 3764    }
 3765
 3766    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3767        self.all_docks()
 3768            .iter()
 3769            .find_map(|dock| dock.read(cx).panel::<T>())
 3770    }
 3771
 3772    fn dismiss_zoomed_items_to_reveal(
 3773        &mut self,
 3774        dock_to_reveal: Option<DockPosition>,
 3775        window: &mut Window,
 3776        cx: &mut Context<Self>,
 3777    ) {
 3778        // If a center pane is zoomed, unzoom it.
 3779        for pane in &self.panes {
 3780            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3781                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3782            }
 3783        }
 3784
 3785        // If another dock is zoomed, hide it.
 3786        let mut focus_center = false;
 3787        for dock in self.all_docks() {
 3788            dock.update(cx, |dock, cx| {
 3789                if Some(dock.position()) != dock_to_reveal
 3790                    && let Some(panel) = dock.active_panel()
 3791                    && panel.is_zoomed(window, cx)
 3792                {
 3793                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3794                    dock.set_open(false, window, cx);
 3795                }
 3796            });
 3797        }
 3798
 3799        if focus_center {
 3800            self.active_pane
 3801                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3802        }
 3803
 3804        if self.zoomed_position != dock_to_reveal {
 3805            self.zoomed = None;
 3806            self.zoomed_position = None;
 3807            cx.emit(Event::ZoomChanged);
 3808        }
 3809
 3810        cx.notify();
 3811    }
 3812
 3813    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3814        let pane = cx.new(|cx| {
 3815            let mut pane = Pane::new(
 3816                self.weak_handle(),
 3817                self.project.clone(),
 3818                self.pane_history_timestamp.clone(),
 3819                None,
 3820                NewFile.boxed_clone(),
 3821                true,
 3822                window,
 3823                cx,
 3824            );
 3825            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3826            pane
 3827        });
 3828        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3829            .detach();
 3830        self.panes.push(pane.clone());
 3831
 3832        window.focus(&pane.focus_handle(cx), cx);
 3833
 3834        cx.emit(Event::PaneAdded(pane.clone()));
 3835        pane
 3836    }
 3837
 3838    pub fn add_item_to_center(
 3839        &mut self,
 3840        item: Box<dyn ItemHandle>,
 3841        window: &mut Window,
 3842        cx: &mut Context<Self>,
 3843    ) -> bool {
 3844        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3845            if let Some(center_pane) = center_pane.upgrade() {
 3846                center_pane.update(cx, |pane, cx| {
 3847                    pane.add_item(item, true, true, None, window, cx)
 3848                });
 3849                true
 3850            } else {
 3851                false
 3852            }
 3853        } else {
 3854            false
 3855        }
 3856    }
 3857
 3858    pub fn add_item_to_active_pane(
 3859        &mut self,
 3860        item: Box<dyn ItemHandle>,
 3861        destination_index: Option<usize>,
 3862        focus_item: bool,
 3863        window: &mut Window,
 3864        cx: &mut App,
 3865    ) {
 3866        self.add_item(
 3867            self.active_pane.clone(),
 3868            item,
 3869            destination_index,
 3870            false,
 3871            focus_item,
 3872            window,
 3873            cx,
 3874        )
 3875    }
 3876
 3877    pub fn add_item(
 3878        &mut self,
 3879        pane: Entity<Pane>,
 3880        item: Box<dyn ItemHandle>,
 3881        destination_index: Option<usize>,
 3882        activate_pane: bool,
 3883        focus_item: bool,
 3884        window: &mut Window,
 3885        cx: &mut App,
 3886    ) {
 3887        pane.update(cx, |pane, cx| {
 3888            pane.add_item(
 3889                item,
 3890                activate_pane,
 3891                focus_item,
 3892                destination_index,
 3893                window,
 3894                cx,
 3895            )
 3896        });
 3897    }
 3898
 3899    pub fn split_item(
 3900        &mut self,
 3901        split_direction: SplitDirection,
 3902        item: Box<dyn ItemHandle>,
 3903        window: &mut Window,
 3904        cx: &mut Context<Self>,
 3905    ) {
 3906        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3907        self.add_item(new_pane, item, None, true, true, window, cx);
 3908    }
 3909
 3910    pub fn open_abs_path(
 3911        &mut self,
 3912        abs_path: PathBuf,
 3913        options: OpenOptions,
 3914        window: &mut Window,
 3915        cx: &mut Context<Self>,
 3916    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3917        cx.spawn_in(window, async move |workspace, cx| {
 3918            let open_paths_task_result = workspace
 3919                .update_in(cx, |workspace, window, cx| {
 3920                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3921                })
 3922                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3923                .await;
 3924            anyhow::ensure!(
 3925                open_paths_task_result.len() == 1,
 3926                "open abs path {abs_path:?} task returned incorrect number of results"
 3927            );
 3928            match open_paths_task_result
 3929                .into_iter()
 3930                .next()
 3931                .expect("ensured single task result")
 3932            {
 3933                Some(open_result) => {
 3934                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3935                }
 3936                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3937            }
 3938        })
 3939    }
 3940
 3941    pub fn split_abs_path(
 3942        &mut self,
 3943        abs_path: PathBuf,
 3944        visible: bool,
 3945        window: &mut Window,
 3946        cx: &mut Context<Self>,
 3947    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3948        let project_path_task =
 3949            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3950        cx.spawn_in(window, async move |this, cx| {
 3951            let (_, path) = project_path_task.await?;
 3952            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3953                .await
 3954        })
 3955    }
 3956
 3957    pub fn open_path(
 3958        &mut self,
 3959        path: impl Into<ProjectPath>,
 3960        pane: Option<WeakEntity<Pane>>,
 3961        focus_item: bool,
 3962        window: &mut Window,
 3963        cx: &mut App,
 3964    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3965        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3966    }
 3967
 3968    pub fn open_path_preview(
 3969        &mut self,
 3970        path: impl Into<ProjectPath>,
 3971        pane: Option<WeakEntity<Pane>>,
 3972        focus_item: bool,
 3973        allow_preview: bool,
 3974        activate: bool,
 3975        window: &mut Window,
 3976        cx: &mut App,
 3977    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3978        let pane = pane.unwrap_or_else(|| {
 3979            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3980                self.panes
 3981                    .first()
 3982                    .expect("There must be an active pane")
 3983                    .downgrade()
 3984            })
 3985        });
 3986
 3987        let project_path = path.into();
 3988        let task = self.load_path(project_path.clone(), window, cx);
 3989        window.spawn(cx, async move |cx| {
 3990            let (project_entry_id, build_item) = task.await?;
 3991
 3992            pane.update_in(cx, |pane, window, cx| {
 3993                pane.open_item(
 3994                    project_entry_id,
 3995                    project_path,
 3996                    focus_item,
 3997                    allow_preview,
 3998                    activate,
 3999                    None,
 4000                    window,
 4001                    cx,
 4002                    build_item,
 4003                )
 4004            })
 4005        })
 4006    }
 4007
 4008    pub fn split_path(
 4009        &mut self,
 4010        path: impl Into<ProjectPath>,
 4011        window: &mut Window,
 4012        cx: &mut Context<Self>,
 4013    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4014        self.split_path_preview(path, false, None, window, cx)
 4015    }
 4016
 4017    pub fn split_path_preview(
 4018        &mut self,
 4019        path: impl Into<ProjectPath>,
 4020        allow_preview: bool,
 4021        split_direction: Option<SplitDirection>,
 4022        window: &mut Window,
 4023        cx: &mut Context<Self>,
 4024    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4025        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4026            self.panes
 4027                .first()
 4028                .expect("There must be an active pane")
 4029                .downgrade()
 4030        });
 4031
 4032        if let Member::Pane(center_pane) = &self.center.root
 4033            && center_pane.read(cx).items_len() == 0
 4034        {
 4035            return self.open_path(path, Some(pane), true, window, cx);
 4036        }
 4037
 4038        let project_path = path.into();
 4039        let task = self.load_path(project_path.clone(), window, cx);
 4040        cx.spawn_in(window, async move |this, cx| {
 4041            let (project_entry_id, build_item) = task.await?;
 4042            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4043                let pane = pane.upgrade()?;
 4044                let new_pane = this.split_pane(
 4045                    pane,
 4046                    split_direction.unwrap_or(SplitDirection::Right),
 4047                    window,
 4048                    cx,
 4049                );
 4050                new_pane.update(cx, |new_pane, cx| {
 4051                    Some(new_pane.open_item(
 4052                        project_entry_id,
 4053                        project_path,
 4054                        true,
 4055                        allow_preview,
 4056                        true,
 4057                        None,
 4058                        window,
 4059                        cx,
 4060                        build_item,
 4061                    ))
 4062                })
 4063            })
 4064            .map(|option| option.context("pane was dropped"))?
 4065        })
 4066    }
 4067
 4068    fn load_path(
 4069        &mut self,
 4070        path: ProjectPath,
 4071        window: &mut Window,
 4072        cx: &mut App,
 4073    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4074        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4075        registry.open_path(self.project(), &path, window, cx)
 4076    }
 4077
 4078    pub fn find_project_item<T>(
 4079        &self,
 4080        pane: &Entity<Pane>,
 4081        project_item: &Entity<T::Item>,
 4082        cx: &App,
 4083    ) -> Option<Entity<T>>
 4084    where
 4085        T: ProjectItem,
 4086    {
 4087        use project::ProjectItem as _;
 4088        let project_item = project_item.read(cx);
 4089        let entry_id = project_item.entry_id(cx);
 4090        let project_path = project_item.project_path(cx);
 4091
 4092        let mut item = None;
 4093        if let Some(entry_id) = entry_id {
 4094            item = pane.read(cx).item_for_entry(entry_id, cx);
 4095        }
 4096        if item.is_none()
 4097            && let Some(project_path) = project_path
 4098        {
 4099            item = pane.read(cx).item_for_path(project_path, cx);
 4100        }
 4101
 4102        item.and_then(|item| item.downcast::<T>())
 4103    }
 4104
 4105    pub fn is_project_item_open<T>(
 4106        &self,
 4107        pane: &Entity<Pane>,
 4108        project_item: &Entity<T::Item>,
 4109        cx: &App,
 4110    ) -> bool
 4111    where
 4112        T: ProjectItem,
 4113    {
 4114        self.find_project_item::<T>(pane, project_item, cx)
 4115            .is_some()
 4116    }
 4117
 4118    pub fn open_project_item<T>(
 4119        &mut self,
 4120        pane: Entity<Pane>,
 4121        project_item: Entity<T::Item>,
 4122        activate_pane: bool,
 4123        focus_item: bool,
 4124        keep_old_preview: bool,
 4125        allow_new_preview: bool,
 4126        window: &mut Window,
 4127        cx: &mut Context<Self>,
 4128    ) -> Entity<T>
 4129    where
 4130        T: ProjectItem,
 4131    {
 4132        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4133
 4134        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4135            if !keep_old_preview
 4136                && let Some(old_id) = old_item_id
 4137                && old_id != item.item_id()
 4138            {
 4139                // switching to a different item, so unpreview old active item
 4140                pane.update(cx, |pane, _| {
 4141                    pane.unpreview_item_if_preview(old_id);
 4142                });
 4143            }
 4144
 4145            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4146            if !allow_new_preview {
 4147                pane.update(cx, |pane, _| {
 4148                    pane.unpreview_item_if_preview(item.item_id());
 4149                });
 4150            }
 4151            return item;
 4152        }
 4153
 4154        let item = pane.update(cx, |pane, cx| {
 4155            cx.new(|cx| {
 4156                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4157            })
 4158        });
 4159        let mut destination_index = None;
 4160        pane.update(cx, |pane, cx| {
 4161            if !keep_old_preview && let Some(old_id) = old_item_id {
 4162                pane.unpreview_item_if_preview(old_id);
 4163            }
 4164            if allow_new_preview {
 4165                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4166            }
 4167        });
 4168
 4169        self.add_item(
 4170            pane,
 4171            Box::new(item.clone()),
 4172            destination_index,
 4173            activate_pane,
 4174            focus_item,
 4175            window,
 4176            cx,
 4177        );
 4178        item
 4179    }
 4180
 4181    pub fn open_shared_screen(
 4182        &mut self,
 4183        peer_id: PeerId,
 4184        window: &mut Window,
 4185        cx: &mut Context<Self>,
 4186    ) {
 4187        if let Some(shared_screen) =
 4188            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4189        {
 4190            self.active_pane.update(cx, |pane, cx| {
 4191                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4192            });
 4193        }
 4194    }
 4195
 4196    pub fn activate_item(
 4197        &mut self,
 4198        item: &dyn ItemHandle,
 4199        activate_pane: bool,
 4200        focus_item: bool,
 4201        window: &mut Window,
 4202        cx: &mut App,
 4203    ) -> bool {
 4204        let result = self.panes.iter().find_map(|pane| {
 4205            pane.read(cx)
 4206                .index_for_item(item)
 4207                .map(|ix| (pane.clone(), ix))
 4208        });
 4209        if let Some((pane, ix)) = result {
 4210            pane.update(cx, |pane, cx| {
 4211                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4212            });
 4213            true
 4214        } else {
 4215            false
 4216        }
 4217    }
 4218
 4219    fn activate_pane_at_index(
 4220        &mut self,
 4221        action: &ActivatePane,
 4222        window: &mut Window,
 4223        cx: &mut Context<Self>,
 4224    ) {
 4225        let panes = self.center.panes();
 4226        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4227            window.focus(&pane.focus_handle(cx), cx);
 4228        } else {
 4229            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4230                .detach();
 4231        }
 4232    }
 4233
 4234    fn move_item_to_pane_at_index(
 4235        &mut self,
 4236        action: &MoveItemToPane,
 4237        window: &mut Window,
 4238        cx: &mut Context<Self>,
 4239    ) {
 4240        let panes = self.center.panes();
 4241        let destination = match panes.get(action.destination) {
 4242            Some(&destination) => destination.clone(),
 4243            None => {
 4244                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4245                    return;
 4246                }
 4247                let direction = SplitDirection::Right;
 4248                let split_off_pane = self
 4249                    .find_pane_in_direction(direction, cx)
 4250                    .unwrap_or_else(|| self.active_pane.clone());
 4251                let new_pane = self.add_pane(window, cx);
 4252                if self
 4253                    .center
 4254                    .split(&split_off_pane, &new_pane, direction, cx)
 4255                    .log_err()
 4256                    .is_none()
 4257                {
 4258                    return;
 4259                };
 4260                new_pane
 4261            }
 4262        };
 4263
 4264        if action.clone {
 4265            if self
 4266                .active_pane
 4267                .read(cx)
 4268                .active_item()
 4269                .is_some_and(|item| item.can_split(cx))
 4270            {
 4271                clone_active_item(
 4272                    self.database_id(),
 4273                    &self.active_pane,
 4274                    &destination,
 4275                    action.focus,
 4276                    window,
 4277                    cx,
 4278                );
 4279                return;
 4280            }
 4281        }
 4282        move_active_item(
 4283            &self.active_pane,
 4284            &destination,
 4285            action.focus,
 4286            true,
 4287            window,
 4288            cx,
 4289        )
 4290    }
 4291
 4292    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4293        let panes = self.center.panes();
 4294        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4295            let next_ix = (ix + 1) % panes.len();
 4296            let next_pane = panes[next_ix].clone();
 4297            window.focus(&next_pane.focus_handle(cx), cx);
 4298        }
 4299    }
 4300
 4301    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4302        let panes = self.center.panes();
 4303        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4304            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4305            let prev_pane = panes[prev_ix].clone();
 4306            window.focus(&prev_pane.focus_handle(cx), cx);
 4307        }
 4308    }
 4309
 4310    pub fn activate_pane_in_direction(
 4311        &mut self,
 4312        direction: SplitDirection,
 4313        window: &mut Window,
 4314        cx: &mut App,
 4315    ) {
 4316        use ActivateInDirectionTarget as Target;
 4317        enum Origin {
 4318            LeftDock,
 4319            RightDock,
 4320            BottomDock,
 4321            Center,
 4322        }
 4323
 4324        let origin: Origin = [
 4325            (&self.left_dock, Origin::LeftDock),
 4326            (&self.right_dock, Origin::RightDock),
 4327            (&self.bottom_dock, Origin::BottomDock),
 4328        ]
 4329        .into_iter()
 4330        .find_map(|(dock, origin)| {
 4331            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4332                Some(origin)
 4333            } else {
 4334                None
 4335            }
 4336        })
 4337        .unwrap_or(Origin::Center);
 4338
 4339        let get_last_active_pane = || {
 4340            let pane = self
 4341                .last_active_center_pane
 4342                .clone()
 4343                .unwrap_or_else(|| {
 4344                    self.panes
 4345                        .first()
 4346                        .expect("There must be an active pane")
 4347                        .downgrade()
 4348                })
 4349                .upgrade()?;
 4350            (pane.read(cx).items_len() != 0).then_some(pane)
 4351        };
 4352
 4353        let try_dock =
 4354            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4355
 4356        let target = match (origin, direction) {
 4357            // We're in the center, so we first try to go to a different pane,
 4358            // otherwise try to go to a dock.
 4359            (Origin::Center, direction) => {
 4360                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4361                    Some(Target::Pane(pane))
 4362                } else {
 4363                    match direction {
 4364                        SplitDirection::Up => None,
 4365                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4366                        SplitDirection::Left => try_dock(&self.left_dock),
 4367                        SplitDirection::Right => try_dock(&self.right_dock),
 4368                    }
 4369                }
 4370            }
 4371
 4372            (Origin::LeftDock, SplitDirection::Right) => {
 4373                if let Some(last_active_pane) = get_last_active_pane() {
 4374                    Some(Target::Pane(last_active_pane))
 4375                } else {
 4376                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4377                }
 4378            }
 4379
 4380            (Origin::LeftDock, SplitDirection::Down)
 4381            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4382
 4383            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4384            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4385            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4386
 4387            (Origin::RightDock, SplitDirection::Left) => {
 4388                if let Some(last_active_pane) = get_last_active_pane() {
 4389                    Some(Target::Pane(last_active_pane))
 4390                } else {
 4391                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4392                }
 4393            }
 4394
 4395            _ => None,
 4396        };
 4397
 4398        match target {
 4399            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4400                let pane = pane.read(cx);
 4401                if let Some(item) = pane.active_item() {
 4402                    item.item_focus_handle(cx).focus(window, cx);
 4403                } else {
 4404                    log::error!(
 4405                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4406                    );
 4407                }
 4408            }
 4409            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4410                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4411                window.defer(cx, move |window, cx| {
 4412                    let dock = dock.read(cx);
 4413                    if let Some(panel) = dock.active_panel() {
 4414                        panel.panel_focus_handle(cx).focus(window, cx);
 4415                    } else {
 4416                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4417                    }
 4418                })
 4419            }
 4420            None => {}
 4421        }
 4422    }
 4423
 4424    pub fn move_item_to_pane_in_direction(
 4425        &mut self,
 4426        action: &MoveItemToPaneInDirection,
 4427        window: &mut Window,
 4428        cx: &mut Context<Self>,
 4429    ) {
 4430        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4431            Some(destination) => destination,
 4432            None => {
 4433                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4434                    return;
 4435                }
 4436                let new_pane = self.add_pane(window, cx);
 4437                if self
 4438                    .center
 4439                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4440                    .log_err()
 4441                    .is_none()
 4442                {
 4443                    return;
 4444                };
 4445                new_pane
 4446            }
 4447        };
 4448
 4449        if action.clone {
 4450            if self
 4451                .active_pane
 4452                .read(cx)
 4453                .active_item()
 4454                .is_some_and(|item| item.can_split(cx))
 4455            {
 4456                clone_active_item(
 4457                    self.database_id(),
 4458                    &self.active_pane,
 4459                    &destination,
 4460                    action.focus,
 4461                    window,
 4462                    cx,
 4463                );
 4464                return;
 4465            }
 4466        }
 4467        move_active_item(
 4468            &self.active_pane,
 4469            &destination,
 4470            action.focus,
 4471            true,
 4472            window,
 4473            cx,
 4474        );
 4475    }
 4476
 4477    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4478        self.center.bounding_box_for_pane(pane)
 4479    }
 4480
 4481    pub fn find_pane_in_direction(
 4482        &mut self,
 4483        direction: SplitDirection,
 4484        cx: &App,
 4485    ) -> Option<Entity<Pane>> {
 4486        self.center
 4487            .find_pane_in_direction(&self.active_pane, direction, cx)
 4488            .cloned()
 4489    }
 4490
 4491    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4492        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4493            self.center.swap(&self.active_pane, &to, cx);
 4494            cx.notify();
 4495        }
 4496    }
 4497
 4498    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4499        if self
 4500            .center
 4501            .move_to_border(&self.active_pane, direction, cx)
 4502            .unwrap()
 4503        {
 4504            cx.notify();
 4505        }
 4506    }
 4507
 4508    pub fn resize_pane(
 4509        &mut self,
 4510        axis: gpui::Axis,
 4511        amount: Pixels,
 4512        window: &mut Window,
 4513        cx: &mut Context<Self>,
 4514    ) {
 4515        let docks = self.all_docks();
 4516        let active_dock = docks
 4517            .into_iter()
 4518            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4519
 4520        if let Some(dock) = active_dock {
 4521            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4522                return;
 4523            };
 4524            match dock.read(cx).position() {
 4525                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4526                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4527                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4528            }
 4529        } else {
 4530            self.center
 4531                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4532        }
 4533        cx.notify();
 4534    }
 4535
 4536    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4537        self.center.reset_pane_sizes(cx);
 4538        cx.notify();
 4539    }
 4540
 4541    fn handle_pane_focused(
 4542        &mut self,
 4543        pane: Entity<Pane>,
 4544        window: &mut Window,
 4545        cx: &mut Context<Self>,
 4546    ) {
 4547        // This is explicitly hoisted out of the following check for pane identity as
 4548        // terminal panel panes are not registered as a center panes.
 4549        self.status_bar.update(cx, |status_bar, cx| {
 4550            status_bar.set_active_pane(&pane, window, cx);
 4551        });
 4552        if self.active_pane != pane {
 4553            self.set_active_pane(&pane, window, cx);
 4554        }
 4555
 4556        if self.last_active_center_pane.is_none() {
 4557            self.last_active_center_pane = Some(pane.downgrade());
 4558        }
 4559
 4560        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4561        // This prevents the dock from closing when focus events fire during window activation.
 4562        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4563            let dock_read = dock.read(cx);
 4564            if let Some(panel) = dock_read.active_panel()
 4565                && let Some(dock_pane) = panel.pane(cx)
 4566                && dock_pane == pane
 4567            {
 4568                Some(dock_read.position())
 4569            } else {
 4570                None
 4571            }
 4572        });
 4573
 4574        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4575        if pane.read(cx).is_zoomed() {
 4576            self.zoomed = Some(pane.downgrade().into());
 4577        } else {
 4578            self.zoomed = None;
 4579        }
 4580        self.zoomed_position = None;
 4581        cx.emit(Event::ZoomChanged);
 4582        self.update_active_view_for_followers(window, cx);
 4583        pane.update(cx, |pane, _| {
 4584            pane.track_alternate_file_items();
 4585        });
 4586
 4587        cx.notify();
 4588    }
 4589
 4590    fn set_active_pane(
 4591        &mut self,
 4592        pane: &Entity<Pane>,
 4593        window: &mut Window,
 4594        cx: &mut Context<Self>,
 4595    ) {
 4596        self.active_pane = pane.clone();
 4597        self.active_item_path_changed(true, window, cx);
 4598        self.last_active_center_pane = Some(pane.downgrade());
 4599    }
 4600
 4601    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4602        self.update_active_view_for_followers(window, cx);
 4603    }
 4604
 4605    fn handle_pane_event(
 4606        &mut self,
 4607        pane: &Entity<Pane>,
 4608        event: &pane::Event,
 4609        window: &mut Window,
 4610        cx: &mut Context<Self>,
 4611    ) {
 4612        let mut serialize_workspace = true;
 4613        match event {
 4614            pane::Event::AddItem { item } => {
 4615                item.added_to_pane(self, pane.clone(), window, cx);
 4616                cx.emit(Event::ItemAdded {
 4617                    item: item.boxed_clone(),
 4618                });
 4619            }
 4620            pane::Event::Split { direction, mode } => {
 4621                match mode {
 4622                    SplitMode::ClonePane => {
 4623                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4624                            .detach();
 4625                    }
 4626                    SplitMode::EmptyPane => {
 4627                        self.split_pane(pane.clone(), *direction, window, cx);
 4628                    }
 4629                    SplitMode::MovePane => {
 4630                        self.split_and_move(pane.clone(), *direction, window, cx);
 4631                    }
 4632                };
 4633            }
 4634            pane::Event::JoinIntoNext => {
 4635                self.join_pane_into_next(pane.clone(), window, cx);
 4636            }
 4637            pane::Event::JoinAll => {
 4638                self.join_all_panes(window, cx);
 4639            }
 4640            pane::Event::Remove { focus_on_pane } => {
 4641                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4642            }
 4643            pane::Event::ActivateItem {
 4644                local,
 4645                focus_changed,
 4646            } => {
 4647                window.invalidate_character_coordinates();
 4648
 4649                pane.update(cx, |pane, _| {
 4650                    pane.track_alternate_file_items();
 4651                });
 4652                if *local {
 4653                    self.unfollow_in_pane(pane, window, cx);
 4654                }
 4655                serialize_workspace = *focus_changed || pane != self.active_pane();
 4656                if pane == self.active_pane() {
 4657                    self.active_item_path_changed(*focus_changed, window, cx);
 4658                    self.update_active_view_for_followers(window, cx);
 4659                } else if *local {
 4660                    self.set_active_pane(pane, window, cx);
 4661                }
 4662            }
 4663            pane::Event::UserSavedItem { item, save_intent } => {
 4664                cx.emit(Event::UserSavedItem {
 4665                    pane: pane.downgrade(),
 4666                    item: item.boxed_clone(),
 4667                    save_intent: *save_intent,
 4668                });
 4669                serialize_workspace = false;
 4670            }
 4671            pane::Event::ChangeItemTitle => {
 4672                if *pane == self.active_pane {
 4673                    self.active_item_path_changed(false, window, cx);
 4674                }
 4675                serialize_workspace = false;
 4676            }
 4677            pane::Event::RemovedItem { item } => {
 4678                cx.emit(Event::ActiveItemChanged);
 4679                self.update_window_edited(window, cx);
 4680                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4681                    && entry.get().entity_id() == pane.entity_id()
 4682                {
 4683                    entry.remove();
 4684                }
 4685                cx.emit(Event::ItemRemoved {
 4686                    item_id: item.item_id(),
 4687                });
 4688            }
 4689            pane::Event::Focus => {
 4690                window.invalidate_character_coordinates();
 4691                self.handle_pane_focused(pane.clone(), window, cx);
 4692            }
 4693            pane::Event::ZoomIn => {
 4694                if *pane == self.active_pane {
 4695                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4696                    if pane.read(cx).has_focus(window, cx) {
 4697                        self.zoomed = Some(pane.downgrade().into());
 4698                        self.zoomed_position = None;
 4699                        cx.emit(Event::ZoomChanged);
 4700                    }
 4701                    cx.notify();
 4702                }
 4703            }
 4704            pane::Event::ZoomOut => {
 4705                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4706                if self.zoomed_position.is_none() {
 4707                    self.zoomed = None;
 4708                    cx.emit(Event::ZoomChanged);
 4709                }
 4710                cx.notify();
 4711            }
 4712            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4713        }
 4714
 4715        if serialize_workspace {
 4716            self.serialize_workspace(window, cx);
 4717        }
 4718    }
 4719
 4720    pub fn unfollow_in_pane(
 4721        &mut self,
 4722        pane: &Entity<Pane>,
 4723        window: &mut Window,
 4724        cx: &mut Context<Workspace>,
 4725    ) -> Option<CollaboratorId> {
 4726        let leader_id = self.leader_for_pane(pane)?;
 4727        self.unfollow(leader_id, window, cx);
 4728        Some(leader_id)
 4729    }
 4730
 4731    pub fn split_pane(
 4732        &mut self,
 4733        pane_to_split: Entity<Pane>,
 4734        split_direction: SplitDirection,
 4735        window: &mut Window,
 4736        cx: &mut Context<Self>,
 4737    ) -> Entity<Pane> {
 4738        let new_pane = self.add_pane(window, cx);
 4739        self.center
 4740            .split(&pane_to_split, &new_pane, split_direction, cx)
 4741            .unwrap();
 4742        cx.notify();
 4743        new_pane
 4744    }
 4745
 4746    pub fn split_and_move(
 4747        &mut self,
 4748        pane: Entity<Pane>,
 4749        direction: SplitDirection,
 4750        window: &mut Window,
 4751        cx: &mut Context<Self>,
 4752    ) {
 4753        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4754            return;
 4755        };
 4756        let new_pane = self.add_pane(window, cx);
 4757        new_pane.update(cx, |pane, cx| {
 4758            pane.add_item(item, true, true, None, window, cx)
 4759        });
 4760        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4761        cx.notify();
 4762    }
 4763
 4764    pub fn split_and_clone(
 4765        &mut self,
 4766        pane: Entity<Pane>,
 4767        direction: SplitDirection,
 4768        window: &mut Window,
 4769        cx: &mut Context<Self>,
 4770    ) -> Task<Option<Entity<Pane>>> {
 4771        let Some(item) = pane.read(cx).active_item() else {
 4772            return Task::ready(None);
 4773        };
 4774        if !item.can_split(cx) {
 4775            return Task::ready(None);
 4776        }
 4777        let task = item.clone_on_split(self.database_id(), window, cx);
 4778        cx.spawn_in(window, async move |this, cx| {
 4779            if let Some(clone) = task.await {
 4780                this.update_in(cx, |this, window, cx| {
 4781                    let new_pane = this.add_pane(window, cx);
 4782                    let nav_history = pane.read(cx).fork_nav_history();
 4783                    new_pane.update(cx, |pane, cx| {
 4784                        pane.set_nav_history(nav_history, cx);
 4785                        pane.add_item(clone, true, true, None, window, cx)
 4786                    });
 4787                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4788                    cx.notify();
 4789                    new_pane
 4790                })
 4791                .ok()
 4792            } else {
 4793                None
 4794            }
 4795        })
 4796    }
 4797
 4798    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4799        let active_item = self.active_pane.read(cx).active_item();
 4800        for pane in &self.panes {
 4801            join_pane_into_active(&self.active_pane, pane, window, cx);
 4802        }
 4803        if let Some(active_item) = active_item {
 4804            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4805        }
 4806        cx.notify();
 4807    }
 4808
 4809    pub fn join_pane_into_next(
 4810        &mut self,
 4811        pane: Entity<Pane>,
 4812        window: &mut Window,
 4813        cx: &mut Context<Self>,
 4814    ) {
 4815        let next_pane = self
 4816            .find_pane_in_direction(SplitDirection::Right, cx)
 4817            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4818            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4819            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4820        let Some(next_pane) = next_pane else {
 4821            return;
 4822        };
 4823        move_all_items(&pane, &next_pane, window, cx);
 4824        cx.notify();
 4825    }
 4826
 4827    fn remove_pane(
 4828        &mut self,
 4829        pane: Entity<Pane>,
 4830        focus_on: Option<Entity<Pane>>,
 4831        window: &mut Window,
 4832        cx: &mut Context<Self>,
 4833    ) {
 4834        if self.center.remove(&pane, cx).unwrap() {
 4835            self.force_remove_pane(&pane, &focus_on, window, cx);
 4836            self.unfollow_in_pane(&pane, window, cx);
 4837            self.last_leaders_by_pane.remove(&pane.downgrade());
 4838            for removed_item in pane.read(cx).items() {
 4839                self.panes_by_item.remove(&removed_item.item_id());
 4840            }
 4841
 4842            cx.notify();
 4843        } else {
 4844            self.active_item_path_changed(true, window, cx);
 4845        }
 4846        cx.emit(Event::PaneRemoved);
 4847    }
 4848
 4849    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4850        &mut self.panes
 4851    }
 4852
 4853    pub fn panes(&self) -> &[Entity<Pane>] {
 4854        &self.panes
 4855    }
 4856
 4857    pub fn active_pane(&self) -> &Entity<Pane> {
 4858        &self.active_pane
 4859    }
 4860
 4861    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4862        for dock in self.all_docks() {
 4863            if dock.focus_handle(cx).contains_focused(window, cx)
 4864                && let Some(pane) = dock
 4865                    .read(cx)
 4866                    .active_panel()
 4867                    .and_then(|panel| panel.pane(cx))
 4868            {
 4869                return pane;
 4870            }
 4871        }
 4872        self.active_pane().clone()
 4873    }
 4874
 4875    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4876        self.find_pane_in_direction(SplitDirection::Right, cx)
 4877            .unwrap_or_else(|| {
 4878                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4879            })
 4880    }
 4881
 4882    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4883        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4884        weak_pane.upgrade()
 4885    }
 4886
 4887    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4888        self.follower_states.retain(|leader_id, state| {
 4889            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4890                for item in state.items_by_leader_view_id.values() {
 4891                    item.view.set_leader_id(None, window, cx);
 4892                }
 4893                false
 4894            } else {
 4895                true
 4896            }
 4897        });
 4898        cx.notify();
 4899    }
 4900
 4901    pub fn start_following(
 4902        &mut self,
 4903        leader_id: impl Into<CollaboratorId>,
 4904        window: &mut Window,
 4905        cx: &mut Context<Self>,
 4906    ) -> Option<Task<Result<()>>> {
 4907        let leader_id = leader_id.into();
 4908        let pane = self.active_pane().clone();
 4909
 4910        self.last_leaders_by_pane
 4911            .insert(pane.downgrade(), leader_id);
 4912        self.unfollow(leader_id, window, cx);
 4913        self.unfollow_in_pane(&pane, window, cx);
 4914        self.follower_states.insert(
 4915            leader_id,
 4916            FollowerState {
 4917                center_pane: pane.clone(),
 4918                dock_pane: None,
 4919                active_view_id: None,
 4920                items_by_leader_view_id: Default::default(),
 4921            },
 4922        );
 4923        cx.notify();
 4924
 4925        match leader_id {
 4926            CollaboratorId::PeerId(leader_peer_id) => {
 4927                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4928                let project_id = self.project.read(cx).remote_id();
 4929                let request = self.app_state.client.request(proto::Follow {
 4930                    room_id,
 4931                    project_id,
 4932                    leader_id: Some(leader_peer_id),
 4933                });
 4934
 4935                Some(cx.spawn_in(window, async move |this, cx| {
 4936                    let response = request.await?;
 4937                    this.update(cx, |this, _| {
 4938                        let state = this
 4939                            .follower_states
 4940                            .get_mut(&leader_id)
 4941                            .context("following interrupted")?;
 4942                        state.active_view_id = response
 4943                            .active_view
 4944                            .as_ref()
 4945                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4946                        anyhow::Ok(())
 4947                    })??;
 4948                    if let Some(view) = response.active_view {
 4949                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4950                    }
 4951                    this.update_in(cx, |this, window, cx| {
 4952                        this.leader_updated(leader_id, window, cx)
 4953                    })?;
 4954                    Ok(())
 4955                }))
 4956            }
 4957            CollaboratorId::Agent => {
 4958                self.leader_updated(leader_id, window, cx)?;
 4959                Some(Task::ready(Ok(())))
 4960            }
 4961        }
 4962    }
 4963
 4964    pub fn follow_next_collaborator(
 4965        &mut self,
 4966        _: &FollowNextCollaborator,
 4967        window: &mut Window,
 4968        cx: &mut Context<Self>,
 4969    ) {
 4970        let collaborators = self.project.read(cx).collaborators();
 4971        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4972            let mut collaborators = collaborators.keys().copied();
 4973            for peer_id in collaborators.by_ref() {
 4974                if CollaboratorId::PeerId(peer_id) == leader_id {
 4975                    break;
 4976                }
 4977            }
 4978            collaborators.next().map(CollaboratorId::PeerId)
 4979        } else if let Some(last_leader_id) =
 4980            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4981        {
 4982            match last_leader_id {
 4983                CollaboratorId::PeerId(peer_id) => {
 4984                    if collaborators.contains_key(peer_id) {
 4985                        Some(*last_leader_id)
 4986                    } else {
 4987                        None
 4988                    }
 4989                }
 4990                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4991            }
 4992        } else {
 4993            None
 4994        };
 4995
 4996        let pane = self.active_pane.clone();
 4997        let Some(leader_id) = next_leader_id.or_else(|| {
 4998            Some(CollaboratorId::PeerId(
 4999                collaborators.keys().copied().next()?,
 5000            ))
 5001        }) else {
 5002            return;
 5003        };
 5004        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5005            return;
 5006        }
 5007        if let Some(task) = self.start_following(leader_id, window, cx) {
 5008            task.detach_and_log_err(cx)
 5009        }
 5010    }
 5011
 5012    pub fn follow(
 5013        &mut self,
 5014        leader_id: impl Into<CollaboratorId>,
 5015        window: &mut Window,
 5016        cx: &mut Context<Self>,
 5017    ) {
 5018        let leader_id = leader_id.into();
 5019
 5020        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5021            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 5022                return;
 5023            };
 5024            let room = room.read(cx);
 5025            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 5026                return;
 5027            };
 5028
 5029            let project = self.project.read(cx);
 5030
 5031            let other_project_id = match remote_participant.location {
 5032                call::ParticipantLocation::External => None,
 5033                call::ParticipantLocation::UnsharedProject => None,
 5034                call::ParticipantLocation::SharedProject { project_id } => {
 5035                    if Some(project_id) == project.remote_id() {
 5036                        None
 5037                    } else {
 5038                        Some(project_id)
 5039                    }
 5040                }
 5041            };
 5042
 5043            // if they are active in another project, follow there.
 5044            if let Some(project_id) = other_project_id {
 5045                let app_state = self.app_state.clone();
 5046                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5047                    .detach_and_log_err(cx);
 5048            }
 5049        }
 5050
 5051        // if you're already following, find the right pane and focus it.
 5052        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5053            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5054
 5055            return;
 5056        }
 5057
 5058        // Otherwise, follow.
 5059        if let Some(task) = self.start_following(leader_id, window, cx) {
 5060            task.detach_and_log_err(cx)
 5061        }
 5062    }
 5063
 5064    pub fn unfollow(
 5065        &mut self,
 5066        leader_id: impl Into<CollaboratorId>,
 5067        window: &mut Window,
 5068        cx: &mut Context<Self>,
 5069    ) -> Option<()> {
 5070        cx.notify();
 5071
 5072        let leader_id = leader_id.into();
 5073        let state = self.follower_states.remove(&leader_id)?;
 5074        for (_, item) in state.items_by_leader_view_id {
 5075            item.view.set_leader_id(None, window, cx);
 5076        }
 5077
 5078        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5079            let project_id = self.project.read(cx).remote_id();
 5080            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 5081            self.app_state
 5082                .client
 5083                .send(proto::Unfollow {
 5084                    room_id,
 5085                    project_id,
 5086                    leader_id: Some(leader_peer_id),
 5087                })
 5088                .log_err();
 5089        }
 5090
 5091        Some(())
 5092    }
 5093
 5094    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5095        self.follower_states.contains_key(&id.into())
 5096    }
 5097
 5098    fn active_item_path_changed(
 5099        &mut self,
 5100        focus_changed: bool,
 5101        window: &mut Window,
 5102        cx: &mut Context<Self>,
 5103    ) {
 5104        cx.emit(Event::ActiveItemChanged);
 5105        let active_entry = self.active_project_path(cx);
 5106        self.project.update(cx, |project, cx| {
 5107            project.set_active_path(active_entry.clone(), cx)
 5108        });
 5109
 5110        if focus_changed && let Some(project_path) = &active_entry {
 5111            let git_store_entity = self.project.read(cx).git_store().clone();
 5112            git_store_entity.update(cx, |git_store, cx| {
 5113                git_store.set_active_repo_for_path(project_path, cx);
 5114            });
 5115        }
 5116
 5117        self.update_window_title(window, cx);
 5118    }
 5119
 5120    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5121        let project = self.project().read(cx);
 5122        let mut title = String::new();
 5123
 5124        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5125            let name = {
 5126                let settings_location = SettingsLocation {
 5127                    worktree_id: worktree.read(cx).id(),
 5128                    path: RelPath::empty(),
 5129                };
 5130
 5131                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5132                match &settings.project_name {
 5133                    Some(name) => name.as_str(),
 5134                    None => worktree.read(cx).root_name_str(),
 5135                }
 5136            };
 5137            if i > 0 {
 5138                title.push_str(", ");
 5139            }
 5140            title.push_str(name);
 5141        }
 5142
 5143        if title.is_empty() {
 5144            title = "empty project".to_string();
 5145        }
 5146
 5147        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5148            let filename = path.path.file_name().or_else(|| {
 5149                Some(
 5150                    project
 5151                        .worktree_for_id(path.worktree_id, cx)?
 5152                        .read(cx)
 5153                        .root_name_str(),
 5154                )
 5155            });
 5156
 5157            if let Some(filename) = filename {
 5158                title.push_str("");
 5159                title.push_str(filename.as_ref());
 5160            }
 5161        }
 5162
 5163        if project.is_via_collab() {
 5164            title.push_str("");
 5165        } else if project.is_shared() {
 5166            title.push_str("");
 5167        }
 5168
 5169        if let Some(last_title) = self.last_window_title.as_ref()
 5170            && &title == last_title
 5171        {
 5172            return;
 5173        }
 5174        window.set_window_title(&title);
 5175        SystemWindowTabController::update_tab_title(
 5176            cx,
 5177            window.window_handle().window_id(),
 5178            SharedString::from(&title),
 5179        );
 5180        self.last_window_title = Some(title);
 5181    }
 5182
 5183    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5184        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5185        if is_edited != self.window_edited {
 5186            self.window_edited = is_edited;
 5187            window.set_window_edited(self.window_edited)
 5188        }
 5189    }
 5190
 5191    fn update_item_dirty_state(
 5192        &mut self,
 5193        item: &dyn ItemHandle,
 5194        window: &mut Window,
 5195        cx: &mut App,
 5196    ) {
 5197        let is_dirty = item.is_dirty(cx);
 5198        let item_id = item.item_id();
 5199        let was_dirty = self.dirty_items.contains_key(&item_id);
 5200        if is_dirty == was_dirty {
 5201            return;
 5202        }
 5203        if was_dirty {
 5204            self.dirty_items.remove(&item_id);
 5205            self.update_window_edited(window, cx);
 5206            return;
 5207        }
 5208
 5209        let workspace = self.weak_handle();
 5210        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5211            return;
 5212        };
 5213        let on_release_callback = Box::new(move |cx: &mut App| {
 5214            window_handle
 5215                .update(cx, |_, window, cx| {
 5216                    workspace
 5217                        .update(cx, |workspace, cx| {
 5218                            workspace.dirty_items.remove(&item_id);
 5219                            workspace.update_window_edited(window, cx)
 5220                        })
 5221                        .ok();
 5222                })
 5223                .ok();
 5224        });
 5225
 5226        let s = item.on_release(cx, on_release_callback);
 5227        self.dirty_items.insert(item_id, s);
 5228        self.update_window_edited(window, cx);
 5229    }
 5230
 5231    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5232        if self.notifications.is_empty() {
 5233            None
 5234        } else {
 5235            Some(
 5236                div()
 5237                    .absolute()
 5238                    .right_3()
 5239                    .bottom_3()
 5240                    .w_112()
 5241                    .h_full()
 5242                    .flex()
 5243                    .flex_col()
 5244                    .justify_end()
 5245                    .gap_2()
 5246                    .children(
 5247                        self.notifications
 5248                            .iter()
 5249                            .map(|(_, notification)| notification.clone().into_any()),
 5250                    ),
 5251            )
 5252        }
 5253    }
 5254
 5255    // RPC handlers
 5256
 5257    fn active_view_for_follower(
 5258        &self,
 5259        follower_project_id: Option<u64>,
 5260        window: &mut Window,
 5261        cx: &mut Context<Self>,
 5262    ) -> Option<proto::View> {
 5263        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5264        let item = item?;
 5265        let leader_id = self
 5266            .pane_for(&*item)
 5267            .and_then(|pane| self.leader_for_pane(&pane));
 5268        let leader_peer_id = match leader_id {
 5269            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5270            Some(CollaboratorId::Agent) | None => None,
 5271        };
 5272
 5273        let item_handle = item.to_followable_item_handle(cx)?;
 5274        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5275        let variant = item_handle.to_state_proto(window, cx)?;
 5276
 5277        if item_handle.is_project_item(window, cx)
 5278            && (follower_project_id.is_none()
 5279                || follower_project_id != self.project.read(cx).remote_id())
 5280        {
 5281            return None;
 5282        }
 5283
 5284        Some(proto::View {
 5285            id: id.to_proto(),
 5286            leader_id: leader_peer_id,
 5287            variant: Some(variant),
 5288            panel_id: panel_id.map(|id| id as i32),
 5289        })
 5290    }
 5291
 5292    fn handle_follow(
 5293        &mut self,
 5294        follower_project_id: Option<u64>,
 5295        window: &mut Window,
 5296        cx: &mut Context<Self>,
 5297    ) -> proto::FollowResponse {
 5298        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5299
 5300        cx.notify();
 5301        proto::FollowResponse {
 5302            views: active_view.iter().cloned().collect(),
 5303            active_view,
 5304        }
 5305    }
 5306
 5307    fn handle_update_followers(
 5308        &mut self,
 5309        leader_id: PeerId,
 5310        message: proto::UpdateFollowers,
 5311        _window: &mut Window,
 5312        _cx: &mut Context<Self>,
 5313    ) {
 5314        self.leader_updates_tx
 5315            .unbounded_send((leader_id, message))
 5316            .ok();
 5317    }
 5318
 5319    async fn process_leader_update(
 5320        this: &WeakEntity<Self>,
 5321        leader_id: PeerId,
 5322        update: proto::UpdateFollowers,
 5323        cx: &mut AsyncWindowContext,
 5324    ) -> Result<()> {
 5325        match update.variant.context("invalid update")? {
 5326            proto::update_followers::Variant::CreateView(view) => {
 5327                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5328                let should_add_view = this.update(cx, |this, _| {
 5329                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5330                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5331                    } else {
 5332                        anyhow::Ok(false)
 5333                    }
 5334                })??;
 5335
 5336                if should_add_view {
 5337                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5338                }
 5339            }
 5340            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5341                let should_add_view = this.update(cx, |this, _| {
 5342                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5343                        state.active_view_id = update_active_view
 5344                            .view
 5345                            .as_ref()
 5346                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5347
 5348                        if state.active_view_id.is_some_and(|view_id| {
 5349                            !state.items_by_leader_view_id.contains_key(&view_id)
 5350                        }) {
 5351                            anyhow::Ok(true)
 5352                        } else {
 5353                            anyhow::Ok(false)
 5354                        }
 5355                    } else {
 5356                        anyhow::Ok(false)
 5357                    }
 5358                })??;
 5359
 5360                if should_add_view && let Some(view) = update_active_view.view {
 5361                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5362                }
 5363            }
 5364            proto::update_followers::Variant::UpdateView(update_view) => {
 5365                let variant = update_view.variant.context("missing update view variant")?;
 5366                let id = update_view.id.context("missing update view id")?;
 5367                let mut tasks = Vec::new();
 5368                this.update_in(cx, |this, window, cx| {
 5369                    let project = this.project.clone();
 5370                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5371                        let view_id = ViewId::from_proto(id.clone())?;
 5372                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5373                            tasks.push(item.view.apply_update_proto(
 5374                                &project,
 5375                                variant.clone(),
 5376                                window,
 5377                                cx,
 5378                            ));
 5379                        }
 5380                    }
 5381                    anyhow::Ok(())
 5382                })??;
 5383                try_join_all(tasks).await.log_err();
 5384            }
 5385        }
 5386        this.update_in(cx, |this, window, cx| {
 5387            this.leader_updated(leader_id, window, cx)
 5388        })?;
 5389        Ok(())
 5390    }
 5391
 5392    async fn add_view_from_leader(
 5393        this: WeakEntity<Self>,
 5394        leader_id: PeerId,
 5395        view: &proto::View,
 5396        cx: &mut AsyncWindowContext,
 5397    ) -> Result<()> {
 5398        let this = this.upgrade().context("workspace dropped")?;
 5399
 5400        let Some(id) = view.id.clone() else {
 5401            anyhow::bail!("no id for view");
 5402        };
 5403        let id = ViewId::from_proto(id)?;
 5404        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5405
 5406        let pane = this.update(cx, |this, _cx| {
 5407            let state = this
 5408                .follower_states
 5409                .get(&leader_id.into())
 5410                .context("stopped following")?;
 5411            anyhow::Ok(state.pane().clone())
 5412        })?;
 5413        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5414            let client = this.read(cx).client().clone();
 5415            pane.items().find_map(|item| {
 5416                let item = item.to_followable_item_handle(cx)?;
 5417                if item.remote_id(&client, window, cx) == Some(id) {
 5418                    Some(item)
 5419                } else {
 5420                    None
 5421                }
 5422            })
 5423        })?;
 5424        let item = if let Some(existing_item) = existing_item {
 5425            existing_item
 5426        } else {
 5427            let variant = view.variant.clone();
 5428            anyhow::ensure!(variant.is_some(), "missing view variant");
 5429
 5430            let task = cx.update(|window, cx| {
 5431                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5432            })?;
 5433
 5434            let Some(task) = task else {
 5435                anyhow::bail!(
 5436                    "failed to construct view from leader (maybe from a different version of zed?)"
 5437                );
 5438            };
 5439
 5440            let mut new_item = task.await?;
 5441            pane.update_in(cx, |pane, window, cx| {
 5442                let mut item_to_remove = None;
 5443                for (ix, item) in pane.items().enumerate() {
 5444                    if let Some(item) = item.to_followable_item_handle(cx) {
 5445                        match new_item.dedup(item.as_ref(), window, cx) {
 5446                            Some(item::Dedup::KeepExisting) => {
 5447                                new_item =
 5448                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5449                                break;
 5450                            }
 5451                            Some(item::Dedup::ReplaceExisting) => {
 5452                                item_to_remove = Some((ix, item.item_id()));
 5453                                break;
 5454                            }
 5455                            None => {}
 5456                        }
 5457                    }
 5458                }
 5459
 5460                if let Some((ix, id)) = item_to_remove {
 5461                    pane.remove_item(id, false, false, window, cx);
 5462                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5463                }
 5464            })?;
 5465
 5466            new_item
 5467        };
 5468
 5469        this.update_in(cx, |this, window, cx| {
 5470            let state = this.follower_states.get_mut(&leader_id.into())?;
 5471            item.set_leader_id(Some(leader_id.into()), window, cx);
 5472            state.items_by_leader_view_id.insert(
 5473                id,
 5474                FollowerView {
 5475                    view: item,
 5476                    location: panel_id,
 5477                },
 5478            );
 5479
 5480            Some(())
 5481        })
 5482        .context("no follower state")?;
 5483
 5484        Ok(())
 5485    }
 5486
 5487    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5488        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5489            return;
 5490        };
 5491
 5492        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5493            let buffer_entity_id = agent_location.buffer.entity_id();
 5494            let view_id = ViewId {
 5495                creator: CollaboratorId::Agent,
 5496                id: buffer_entity_id.as_u64(),
 5497            };
 5498            follower_state.active_view_id = Some(view_id);
 5499
 5500            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5501                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5502                hash_map::Entry::Vacant(entry) => {
 5503                    let existing_view =
 5504                        follower_state
 5505                            .center_pane
 5506                            .read(cx)
 5507                            .items()
 5508                            .find_map(|item| {
 5509                                let item = item.to_followable_item_handle(cx)?;
 5510                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5511                                    && item.project_item_model_ids(cx).as_slice()
 5512                                        == [buffer_entity_id]
 5513                                {
 5514                                    Some(item)
 5515                                } else {
 5516                                    None
 5517                                }
 5518                            });
 5519                    let view = existing_view.or_else(|| {
 5520                        agent_location.buffer.upgrade().and_then(|buffer| {
 5521                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5522                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5523                            })?
 5524                            .to_followable_item_handle(cx)
 5525                        })
 5526                    });
 5527
 5528                    view.map(|view| {
 5529                        entry.insert(FollowerView {
 5530                            view,
 5531                            location: None,
 5532                        })
 5533                    })
 5534                }
 5535            };
 5536
 5537            if let Some(item) = item {
 5538                item.view
 5539                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5540                item.view
 5541                    .update_agent_location(agent_location.position, window, cx);
 5542            }
 5543        } else {
 5544            follower_state.active_view_id = None;
 5545        }
 5546
 5547        self.leader_updated(CollaboratorId::Agent, window, cx);
 5548    }
 5549
 5550    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5551        let mut is_project_item = true;
 5552        let mut update = proto::UpdateActiveView::default();
 5553        if window.is_window_active() {
 5554            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5555
 5556            if let Some(item) = active_item
 5557                && item.item_focus_handle(cx).contains_focused(window, cx)
 5558            {
 5559                let leader_id = self
 5560                    .pane_for(&*item)
 5561                    .and_then(|pane| self.leader_for_pane(&pane));
 5562                let leader_peer_id = match leader_id {
 5563                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5564                    Some(CollaboratorId::Agent) | None => None,
 5565                };
 5566
 5567                if let Some(item) = item.to_followable_item_handle(cx) {
 5568                    let id = item
 5569                        .remote_id(&self.app_state.client, window, cx)
 5570                        .map(|id| id.to_proto());
 5571
 5572                    if let Some(id) = id
 5573                        && let Some(variant) = item.to_state_proto(window, cx)
 5574                    {
 5575                        let view = Some(proto::View {
 5576                            id,
 5577                            leader_id: leader_peer_id,
 5578                            variant: Some(variant),
 5579                            panel_id: panel_id.map(|id| id as i32),
 5580                        });
 5581
 5582                        is_project_item = item.is_project_item(window, cx);
 5583                        update = proto::UpdateActiveView { view };
 5584                    };
 5585                }
 5586            }
 5587        }
 5588
 5589        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5590        if active_view_id != self.last_active_view_id.as_ref() {
 5591            self.last_active_view_id = active_view_id.cloned();
 5592            self.update_followers(
 5593                is_project_item,
 5594                proto::update_followers::Variant::UpdateActiveView(update),
 5595                window,
 5596                cx,
 5597            );
 5598        }
 5599    }
 5600
 5601    fn active_item_for_followers(
 5602        &self,
 5603        window: &mut Window,
 5604        cx: &mut App,
 5605    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5606        let mut active_item = None;
 5607        let mut panel_id = None;
 5608        for dock in self.all_docks() {
 5609            if dock.focus_handle(cx).contains_focused(window, cx)
 5610                && let Some(panel) = dock.read(cx).active_panel()
 5611                && let Some(pane) = panel.pane(cx)
 5612                && let Some(item) = pane.read(cx).active_item()
 5613            {
 5614                active_item = Some(item);
 5615                panel_id = panel.remote_id();
 5616                break;
 5617            }
 5618        }
 5619
 5620        if active_item.is_none() {
 5621            active_item = self.active_pane().read(cx).active_item();
 5622        }
 5623        (active_item, panel_id)
 5624    }
 5625
 5626    fn update_followers(
 5627        &self,
 5628        project_only: bool,
 5629        update: proto::update_followers::Variant,
 5630        _: &mut Window,
 5631        cx: &mut App,
 5632    ) -> Option<()> {
 5633        // If this update only applies to for followers in the current project,
 5634        // then skip it unless this project is shared. If it applies to all
 5635        // followers, regardless of project, then set `project_id` to none,
 5636        // indicating that it goes to all followers.
 5637        let project_id = if project_only {
 5638            Some(self.project.read(cx).remote_id()?)
 5639        } else {
 5640            None
 5641        };
 5642        self.app_state().workspace_store.update(cx, |store, cx| {
 5643            store.update_followers(project_id, update, cx)
 5644        })
 5645    }
 5646
 5647    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5648        self.follower_states.iter().find_map(|(leader_id, state)| {
 5649            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5650                Some(*leader_id)
 5651            } else {
 5652                None
 5653            }
 5654        })
 5655    }
 5656
 5657    fn leader_updated(
 5658        &mut self,
 5659        leader_id: impl Into<CollaboratorId>,
 5660        window: &mut Window,
 5661        cx: &mut Context<Self>,
 5662    ) -> Option<Box<dyn ItemHandle>> {
 5663        cx.notify();
 5664
 5665        let leader_id = leader_id.into();
 5666        let (panel_id, item) = match leader_id {
 5667            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5668            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5669        };
 5670
 5671        let state = self.follower_states.get(&leader_id)?;
 5672        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5673        let pane;
 5674        if let Some(panel_id) = panel_id {
 5675            pane = self
 5676                .activate_panel_for_proto_id(panel_id, window, cx)?
 5677                .pane(cx)?;
 5678            let state = self.follower_states.get_mut(&leader_id)?;
 5679            state.dock_pane = Some(pane.clone());
 5680        } else {
 5681            pane = state.center_pane.clone();
 5682            let state = self.follower_states.get_mut(&leader_id)?;
 5683            if let Some(dock_pane) = state.dock_pane.take() {
 5684                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5685            }
 5686        }
 5687
 5688        pane.update(cx, |pane, cx| {
 5689            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5690            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5691                pane.activate_item(index, false, false, window, cx);
 5692            } else {
 5693                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5694            }
 5695
 5696            if focus_active_item {
 5697                pane.focus_active_item(window, cx)
 5698            }
 5699        });
 5700
 5701        Some(item)
 5702    }
 5703
 5704    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5705        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5706        let active_view_id = state.active_view_id?;
 5707        Some(
 5708            state
 5709                .items_by_leader_view_id
 5710                .get(&active_view_id)?
 5711                .view
 5712                .boxed_clone(),
 5713        )
 5714    }
 5715
 5716    fn active_item_for_peer(
 5717        &self,
 5718        peer_id: PeerId,
 5719        window: &mut Window,
 5720        cx: &mut Context<Self>,
 5721    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5722        let call = self.active_call()?;
 5723        let room = call.read(cx).room()?.read(cx);
 5724        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5725        let leader_in_this_app;
 5726        let leader_in_this_project;
 5727        match participant.location {
 5728            call::ParticipantLocation::SharedProject { project_id } => {
 5729                leader_in_this_app = true;
 5730                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5731            }
 5732            call::ParticipantLocation::UnsharedProject => {
 5733                leader_in_this_app = true;
 5734                leader_in_this_project = false;
 5735            }
 5736            call::ParticipantLocation::External => {
 5737                leader_in_this_app = false;
 5738                leader_in_this_project = false;
 5739            }
 5740        };
 5741        let state = self.follower_states.get(&peer_id.into())?;
 5742        let mut item_to_activate = None;
 5743        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5744            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5745                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5746            {
 5747                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5748            }
 5749        } else if let Some(shared_screen) =
 5750            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5751        {
 5752            item_to_activate = Some((None, Box::new(shared_screen)));
 5753        }
 5754        item_to_activate
 5755    }
 5756
 5757    fn shared_screen_for_peer(
 5758        &self,
 5759        peer_id: PeerId,
 5760        pane: &Entity<Pane>,
 5761        window: &mut Window,
 5762        cx: &mut App,
 5763    ) -> Option<Entity<SharedScreen>> {
 5764        let call = self.active_call()?;
 5765        let room = call.read(cx).room()?.clone();
 5766        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5767        let track = participant.video_tracks.values().next()?.clone();
 5768        let user = participant.user.clone();
 5769
 5770        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5771            if item.read(cx).peer_id == peer_id {
 5772                return Some(item);
 5773            }
 5774        }
 5775
 5776        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5777    }
 5778
 5779    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5780        if window.is_window_active() {
 5781            self.update_active_view_for_followers(window, cx);
 5782
 5783            if let Some(database_id) = self.database_id {
 5784                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5785                    .detach();
 5786            }
 5787        } else {
 5788            for pane in &self.panes {
 5789                pane.update(cx, |pane, cx| {
 5790                    if let Some(item) = pane.active_item() {
 5791                        item.workspace_deactivated(window, cx);
 5792                    }
 5793                    for item in pane.items() {
 5794                        if matches!(
 5795                            item.workspace_settings(cx).autosave,
 5796                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5797                        ) {
 5798                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5799                                .detach_and_log_err(cx);
 5800                        }
 5801                    }
 5802                });
 5803            }
 5804        }
 5805    }
 5806
 5807    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5808        self.active_call.as_ref().map(|(call, _)| call)
 5809    }
 5810
 5811    fn on_active_call_event(
 5812        &mut self,
 5813        _: &Entity<ActiveCall>,
 5814        event: &call::room::Event,
 5815        window: &mut Window,
 5816        cx: &mut Context<Self>,
 5817    ) {
 5818        match event {
 5819            call::room::Event::ParticipantLocationChanged { participant_id }
 5820            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5821                self.leader_updated(participant_id, window, cx);
 5822            }
 5823            _ => {}
 5824        }
 5825    }
 5826
 5827    pub fn database_id(&self) -> Option<WorkspaceId> {
 5828        self.database_id
 5829    }
 5830
 5831    pub fn session_id(&self) -> Option<String> {
 5832        self.session_id.clone()
 5833    }
 5834
 5835    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5836        let project = self.project().read(cx);
 5837        project
 5838            .visible_worktrees(cx)
 5839            .map(|worktree| worktree.read(cx).abs_path())
 5840            .collect::<Vec<_>>()
 5841    }
 5842
 5843    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5844        match member {
 5845            Member::Axis(PaneAxis { members, .. }) => {
 5846                for child in members.iter() {
 5847                    self.remove_panes(child.clone(), window, cx)
 5848                }
 5849            }
 5850            Member::Pane(pane) => {
 5851                self.force_remove_pane(&pane, &None, window, cx);
 5852            }
 5853        }
 5854    }
 5855
 5856    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5857        self.session_id.take();
 5858        self.serialize_workspace_internal(window, cx)
 5859    }
 5860
 5861    fn force_remove_pane(
 5862        &mut self,
 5863        pane: &Entity<Pane>,
 5864        focus_on: &Option<Entity<Pane>>,
 5865        window: &mut Window,
 5866        cx: &mut Context<Workspace>,
 5867    ) {
 5868        self.panes.retain(|p| p != pane);
 5869        if let Some(focus_on) = focus_on {
 5870            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5871        } else if self.active_pane() == pane {
 5872            self.panes
 5873                .last()
 5874                .unwrap()
 5875                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5876        }
 5877        if self.last_active_center_pane == Some(pane.downgrade()) {
 5878            self.last_active_center_pane = None;
 5879        }
 5880        cx.notify();
 5881    }
 5882
 5883    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5884        if self._schedule_serialize_workspace.is_none() {
 5885            self._schedule_serialize_workspace =
 5886                Some(cx.spawn_in(window, async move |this, cx| {
 5887                    cx.background_executor()
 5888                        .timer(SERIALIZATION_THROTTLE_TIME)
 5889                        .await;
 5890                    this.update_in(cx, |this, window, cx| {
 5891                        this.serialize_workspace_internal(window, cx).detach();
 5892                        this._schedule_serialize_workspace.take();
 5893                    })
 5894                    .log_err();
 5895                }));
 5896        }
 5897    }
 5898
 5899    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5900        let Some(database_id) = self.database_id() else {
 5901            return Task::ready(());
 5902        };
 5903
 5904        fn serialize_pane_handle(
 5905            pane_handle: &Entity<Pane>,
 5906            window: &mut Window,
 5907            cx: &mut App,
 5908        ) -> SerializedPane {
 5909            let (items, active, pinned_count) = {
 5910                let pane = pane_handle.read(cx);
 5911                let active_item_id = pane.active_item().map(|item| item.item_id());
 5912                (
 5913                    pane.items()
 5914                        .filter_map(|handle| {
 5915                            let handle = handle.to_serializable_item_handle(cx)?;
 5916
 5917                            Some(SerializedItem {
 5918                                kind: Arc::from(handle.serialized_item_kind()),
 5919                                item_id: handle.item_id().as_u64(),
 5920                                active: Some(handle.item_id()) == active_item_id,
 5921                                preview: pane.is_active_preview_item(handle.item_id()),
 5922                            })
 5923                        })
 5924                        .collect::<Vec<_>>(),
 5925                    pane.has_focus(window, cx),
 5926                    pane.pinned_count(),
 5927                )
 5928            };
 5929
 5930            SerializedPane::new(items, active, pinned_count)
 5931        }
 5932
 5933        fn build_serialized_pane_group(
 5934            pane_group: &Member,
 5935            window: &mut Window,
 5936            cx: &mut App,
 5937        ) -> SerializedPaneGroup {
 5938            match pane_group {
 5939                Member::Axis(PaneAxis {
 5940                    axis,
 5941                    members,
 5942                    flexes,
 5943                    bounding_boxes: _,
 5944                }) => SerializedPaneGroup::Group {
 5945                    axis: SerializedAxis(*axis),
 5946                    children: members
 5947                        .iter()
 5948                        .map(|member| build_serialized_pane_group(member, window, cx))
 5949                        .collect::<Vec<_>>(),
 5950                    flexes: Some(flexes.lock().clone()),
 5951                },
 5952                Member::Pane(pane_handle) => {
 5953                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5954                }
 5955            }
 5956        }
 5957
 5958        fn build_serialized_docks(
 5959            this: &Workspace,
 5960            window: &mut Window,
 5961            cx: &mut App,
 5962        ) -> DockStructure {
 5963            let left_dock = this.left_dock.read(cx);
 5964            let left_visible = left_dock.is_open();
 5965            let left_active_panel = left_dock
 5966                .active_panel()
 5967                .map(|panel| panel.persistent_name().to_string());
 5968            let left_dock_zoom = left_dock
 5969                .active_panel()
 5970                .map(|panel| panel.is_zoomed(window, cx))
 5971                .unwrap_or(false);
 5972
 5973            let right_dock = this.right_dock.read(cx);
 5974            let right_visible = right_dock.is_open();
 5975            let right_active_panel = right_dock
 5976                .active_panel()
 5977                .map(|panel| panel.persistent_name().to_string());
 5978            let right_dock_zoom = right_dock
 5979                .active_panel()
 5980                .map(|panel| panel.is_zoomed(window, cx))
 5981                .unwrap_or(false);
 5982
 5983            let bottom_dock = this.bottom_dock.read(cx);
 5984            let bottom_visible = bottom_dock.is_open();
 5985            let bottom_active_panel = bottom_dock
 5986                .active_panel()
 5987                .map(|panel| panel.persistent_name().to_string());
 5988            let bottom_dock_zoom = bottom_dock
 5989                .active_panel()
 5990                .map(|panel| panel.is_zoomed(window, cx))
 5991                .unwrap_or(false);
 5992
 5993            DockStructure {
 5994                left: DockData {
 5995                    visible: left_visible,
 5996                    active_panel: left_active_panel,
 5997                    zoom: left_dock_zoom,
 5998                },
 5999                right: DockData {
 6000                    visible: right_visible,
 6001                    active_panel: right_active_panel,
 6002                    zoom: right_dock_zoom,
 6003                },
 6004                bottom: DockData {
 6005                    visible: bottom_visible,
 6006                    active_panel: bottom_active_panel,
 6007                    zoom: bottom_dock_zoom,
 6008                },
 6009            }
 6010        }
 6011
 6012        match self.serialize_workspace_location(cx) {
 6013            WorkspaceLocation::Location(location, paths) => {
 6014                let breakpoints = self.project.update(cx, |project, cx| {
 6015                    project
 6016                        .breakpoint_store()
 6017                        .read(cx)
 6018                        .all_source_breakpoints(cx)
 6019                });
 6020                let user_toolchains = self
 6021                    .project
 6022                    .read(cx)
 6023                    .user_toolchains(cx)
 6024                    .unwrap_or_default();
 6025
 6026                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6027                let docks = build_serialized_docks(self, window, cx);
 6028                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6029
 6030                let serialized_workspace = SerializedWorkspace {
 6031                    id: database_id,
 6032                    location,
 6033                    paths,
 6034                    center_group,
 6035                    window_bounds,
 6036                    display: Default::default(),
 6037                    docks,
 6038                    centered_layout: self.centered_layout,
 6039                    session_id: self.session_id.clone(),
 6040                    breakpoints,
 6041                    window_id: Some(window.window_handle().window_id().as_u64()),
 6042                    user_toolchains,
 6043                };
 6044
 6045                window.spawn(cx, async move |_| {
 6046                    persistence::DB.save_workspace(serialized_workspace).await;
 6047                })
 6048            }
 6049            WorkspaceLocation::DetachFromSession => {
 6050                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6051                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6052                // Save dock state for empty local workspaces
 6053                let docks = build_serialized_docks(self, window, cx);
 6054                window.spawn(cx, async move |_| {
 6055                    persistence::DB
 6056                        .set_window_open_status(
 6057                            database_id,
 6058                            window_bounds,
 6059                            display.unwrap_or_default(),
 6060                        )
 6061                        .await
 6062                        .log_err();
 6063                    persistence::DB
 6064                        .set_session_id(database_id, None)
 6065                        .await
 6066                        .log_err();
 6067                    persistence::write_default_dock_state(docks).await.log_err();
 6068                })
 6069            }
 6070            WorkspaceLocation::None => {
 6071                // Save dock state for empty non-local workspaces
 6072                let docks = build_serialized_docks(self, window, cx);
 6073                window.spawn(cx, async move |_| {
 6074                    persistence::write_default_dock_state(docks).await.log_err();
 6075                })
 6076            }
 6077        }
 6078    }
 6079
 6080    fn has_any_items_open(&self, cx: &App) -> bool {
 6081        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6082    }
 6083
 6084    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6085        let paths = PathList::new(&self.root_paths(cx));
 6086        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6087            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6088        } else if self.project.read(cx).is_local() {
 6089            if !paths.is_empty() || self.has_any_items_open(cx) {
 6090                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6091            } else {
 6092                WorkspaceLocation::DetachFromSession
 6093            }
 6094        } else {
 6095            WorkspaceLocation::None
 6096        }
 6097    }
 6098
 6099    fn update_history(&self, cx: &mut App) {
 6100        let Some(id) = self.database_id() else {
 6101            return;
 6102        };
 6103        if !self.project.read(cx).is_local() {
 6104            return;
 6105        }
 6106        if let Some(manager) = HistoryManager::global(cx) {
 6107            let paths = PathList::new(&self.root_paths(cx));
 6108            manager.update(cx, |this, cx| {
 6109                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6110            });
 6111        }
 6112    }
 6113
 6114    async fn serialize_items(
 6115        this: &WeakEntity<Self>,
 6116        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6117        cx: &mut AsyncWindowContext,
 6118    ) -> Result<()> {
 6119        const CHUNK_SIZE: usize = 200;
 6120
 6121        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6122
 6123        while let Some(items_received) = serializable_items.next().await {
 6124            let unique_items =
 6125                items_received
 6126                    .into_iter()
 6127                    .fold(HashMap::default(), |mut acc, item| {
 6128                        acc.entry(item.item_id()).or_insert(item);
 6129                        acc
 6130                    });
 6131
 6132            // We use into_iter() here so that the references to the items are moved into
 6133            // the tasks and not kept alive while we're sleeping.
 6134            for (_, item) in unique_items.into_iter() {
 6135                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6136                    item.serialize(workspace, false, window, cx)
 6137                }) {
 6138                    cx.background_spawn(async move { task.await.log_err() })
 6139                        .detach();
 6140                }
 6141            }
 6142
 6143            cx.background_executor()
 6144                .timer(SERIALIZATION_THROTTLE_TIME)
 6145                .await;
 6146        }
 6147
 6148        Ok(())
 6149    }
 6150
 6151    pub(crate) fn enqueue_item_serialization(
 6152        &mut self,
 6153        item: Box<dyn SerializableItemHandle>,
 6154    ) -> Result<()> {
 6155        self.serializable_items_tx
 6156            .unbounded_send(item)
 6157            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6158    }
 6159
 6160    pub(crate) fn load_workspace(
 6161        serialized_workspace: SerializedWorkspace,
 6162        paths_to_open: Vec<Option<ProjectPath>>,
 6163        window: &mut Window,
 6164        cx: &mut Context<Workspace>,
 6165    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6166        cx.spawn_in(window, async move |workspace, cx| {
 6167            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6168
 6169            let mut center_group = None;
 6170            let mut center_items = None;
 6171
 6172            // Traverse the splits tree and add to things
 6173            if let Some((group, active_pane, items)) = serialized_workspace
 6174                .center_group
 6175                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6176                .await
 6177            {
 6178                center_items = Some(items);
 6179                center_group = Some((group, active_pane))
 6180            }
 6181
 6182            let mut items_by_project_path = HashMap::default();
 6183            let mut item_ids_by_kind = HashMap::default();
 6184            let mut all_deserialized_items = Vec::default();
 6185            cx.update(|_, cx| {
 6186                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6187                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6188                        item_ids_by_kind
 6189                            .entry(serializable_item_handle.serialized_item_kind())
 6190                            .or_insert(Vec::new())
 6191                            .push(item.item_id().as_u64() as ItemId);
 6192                    }
 6193
 6194                    if let Some(project_path) = item.project_path(cx) {
 6195                        items_by_project_path.insert(project_path, item.clone());
 6196                    }
 6197                    all_deserialized_items.push(item);
 6198                }
 6199            })?;
 6200
 6201            let opened_items = paths_to_open
 6202                .into_iter()
 6203                .map(|path_to_open| {
 6204                    path_to_open
 6205                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6206                })
 6207                .collect::<Vec<_>>();
 6208
 6209            // Remove old panes from workspace panes list
 6210            workspace.update_in(cx, |workspace, window, cx| {
 6211                if let Some((center_group, active_pane)) = center_group {
 6212                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6213
 6214                    // Swap workspace center group
 6215                    workspace.center = PaneGroup::with_root(center_group);
 6216                    workspace.center.set_is_center(true);
 6217                    workspace.center.mark_positions(cx);
 6218
 6219                    if let Some(active_pane) = active_pane {
 6220                        workspace.set_active_pane(&active_pane, window, cx);
 6221                        cx.focus_self(window);
 6222                    } else {
 6223                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6224                    }
 6225                }
 6226
 6227                let docks = serialized_workspace.docks;
 6228
 6229                for (dock, serialized_dock) in [
 6230                    (&mut workspace.right_dock, docks.right),
 6231                    (&mut workspace.left_dock, docks.left),
 6232                    (&mut workspace.bottom_dock, docks.bottom),
 6233                ]
 6234                .iter_mut()
 6235                {
 6236                    dock.update(cx, |dock, cx| {
 6237                        dock.serialized_dock = Some(serialized_dock.clone());
 6238                        dock.restore_state(window, cx);
 6239                    });
 6240                }
 6241
 6242                cx.notify();
 6243            })?;
 6244
 6245            let _ = project
 6246                .update(cx, |project, cx| {
 6247                    project
 6248                        .breakpoint_store()
 6249                        .update(cx, |breakpoint_store, cx| {
 6250                            breakpoint_store
 6251                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6252                        })
 6253                })
 6254                .await;
 6255
 6256            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6257            // after loading the items, we might have different items and in order to avoid
 6258            // the database filling up, we delete items that haven't been loaded now.
 6259            //
 6260            // The items that have been loaded, have been saved after they've been added to the workspace.
 6261            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6262                item_ids_by_kind
 6263                    .into_iter()
 6264                    .map(|(item_kind, loaded_items)| {
 6265                        SerializableItemRegistry::cleanup(
 6266                            item_kind,
 6267                            serialized_workspace.id,
 6268                            loaded_items,
 6269                            window,
 6270                            cx,
 6271                        )
 6272                        .log_err()
 6273                    })
 6274                    .collect::<Vec<_>>()
 6275            })?;
 6276
 6277            futures::future::join_all(clean_up_tasks).await;
 6278
 6279            workspace
 6280                .update_in(cx, |workspace, window, cx| {
 6281                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6282                    workspace.serialize_workspace_internal(window, cx).detach();
 6283
 6284                    // Ensure that we mark the window as edited if we did load dirty items
 6285                    workspace.update_window_edited(window, cx);
 6286                })
 6287                .ok();
 6288
 6289            Ok(opened_items)
 6290        })
 6291    }
 6292
 6293    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6294        self.add_workspace_actions_listeners(div, window, cx)
 6295            .on_action(cx.listener(
 6296                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6297                    for action in &action_sequence.0 {
 6298                        window.dispatch_action(action.boxed_clone(), cx);
 6299                    }
 6300                },
 6301            ))
 6302            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6303            .on_action(cx.listener(Self::close_all_items_and_panes))
 6304            .on_action(cx.listener(Self::close_item_in_all_panes))
 6305            .on_action(cx.listener(Self::save_all))
 6306            .on_action(cx.listener(Self::send_keystrokes))
 6307            .on_action(cx.listener(Self::add_folder_to_project))
 6308            .on_action(cx.listener(Self::follow_next_collaborator))
 6309            .on_action(cx.listener(Self::close_window))
 6310            .on_action(cx.listener(Self::activate_pane_at_index))
 6311            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6312            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6313            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6314            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6315                let pane = workspace.active_pane().clone();
 6316                workspace.unfollow_in_pane(&pane, window, cx);
 6317            }))
 6318            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6319                workspace
 6320                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6321                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6322            }))
 6323            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6324                workspace
 6325                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6326                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6327            }))
 6328            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6329                workspace
 6330                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6331                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6332            }))
 6333            .on_action(
 6334                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6335                    workspace.activate_previous_pane(window, cx)
 6336                }),
 6337            )
 6338            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6339                workspace.activate_next_pane(window, cx)
 6340            }))
 6341            .on_action(
 6342                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6343                    workspace.activate_next_window(cx)
 6344                }),
 6345            )
 6346            .on_action(
 6347                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6348                    workspace.activate_previous_window(cx)
 6349                }),
 6350            )
 6351            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6352                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6353            }))
 6354            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6355                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6356            }))
 6357            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6358                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6359            }))
 6360            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6361                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6362            }))
 6363            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6364                workspace.activate_next_pane(window, cx)
 6365            }))
 6366            .on_action(cx.listener(
 6367                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6368                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6369                },
 6370            ))
 6371            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6372                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6373            }))
 6374            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6375                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6376            }))
 6377            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6378                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6379            }))
 6380            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6381                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6382            }))
 6383            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6384                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6385                    SplitDirection::Down,
 6386                    SplitDirection::Up,
 6387                    SplitDirection::Right,
 6388                    SplitDirection::Left,
 6389                ];
 6390                for dir in DIRECTION_PRIORITY {
 6391                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6392                        workspace.swap_pane_in_direction(dir, cx);
 6393                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6394                        break;
 6395                    }
 6396                }
 6397            }))
 6398            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6399                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6400            }))
 6401            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6402                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6403            }))
 6404            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6405                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6406            }))
 6407            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6408                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6409            }))
 6410            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6411                this.toggle_dock(DockPosition::Left, window, cx);
 6412            }))
 6413            .on_action(cx.listener(
 6414                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6415                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6416                },
 6417            ))
 6418            .on_action(cx.listener(
 6419                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6420                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6421                },
 6422            ))
 6423            .on_action(cx.listener(
 6424                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6425                    if !workspace.close_active_dock(window, cx) {
 6426                        cx.propagate();
 6427                    }
 6428                },
 6429            ))
 6430            .on_action(
 6431                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6432                    workspace.close_all_docks(window, cx);
 6433                }),
 6434            )
 6435            .on_action(cx.listener(Self::toggle_all_docks))
 6436            .on_action(cx.listener(
 6437                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6438                    workspace.clear_all_notifications(cx);
 6439                },
 6440            ))
 6441            .on_action(cx.listener(
 6442                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6443                    workspace.clear_navigation_history(window, cx);
 6444                },
 6445            ))
 6446            .on_action(cx.listener(
 6447                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6448                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6449                        workspace.suppress_notification(&notification_id, cx);
 6450                    }
 6451                },
 6452            ))
 6453            .on_action(cx.listener(
 6454                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6455                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6456                },
 6457            ))
 6458            .on_action(
 6459                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6460                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6461                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6462                            trusted_worktrees.clear_trusted_paths()
 6463                        });
 6464                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6465                        cx.spawn(async move |_, cx| {
 6466                            if clear_task.await.log_err().is_some() {
 6467                                cx.update(|cx| reload(cx));
 6468                            }
 6469                        })
 6470                        .detach();
 6471                    }
 6472                }),
 6473            )
 6474            .on_action(cx.listener(
 6475                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6476                    workspace.reopen_closed_item(window, cx).detach();
 6477                },
 6478            ))
 6479            .on_action(cx.listener(
 6480                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6481                    for dock in workspace.all_docks() {
 6482                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6483                            let Some(panel) = dock.read(cx).active_panel() else {
 6484                                return;
 6485                            };
 6486
 6487                            // Set to `None`, then the size will fall back to the default.
 6488                            panel.clone().set_size(None, window, cx);
 6489
 6490                            return;
 6491                        }
 6492                    }
 6493                },
 6494            ))
 6495            .on_action(cx.listener(
 6496                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6497                    for dock in workspace.all_docks() {
 6498                        if let Some(panel) = dock.read(cx).visible_panel() {
 6499                            // Set to `None`, then the size will fall back to the default.
 6500                            panel.clone().set_size(None, window, cx);
 6501                        }
 6502                    }
 6503                },
 6504            ))
 6505            .on_action(cx.listener(
 6506                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6507                    adjust_active_dock_size_by_px(
 6508                        px_with_ui_font_fallback(act.px, cx),
 6509                        workspace,
 6510                        window,
 6511                        cx,
 6512                    );
 6513                },
 6514            ))
 6515            .on_action(cx.listener(
 6516                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6517                    adjust_active_dock_size_by_px(
 6518                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6519                        workspace,
 6520                        window,
 6521                        cx,
 6522                    );
 6523                },
 6524            ))
 6525            .on_action(cx.listener(
 6526                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6527                    adjust_open_docks_size_by_px(
 6528                        px_with_ui_font_fallback(act.px, cx),
 6529                        workspace,
 6530                        window,
 6531                        cx,
 6532                    );
 6533                },
 6534            ))
 6535            .on_action(cx.listener(
 6536                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6537                    adjust_open_docks_size_by_px(
 6538                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6539                        workspace,
 6540                        window,
 6541                        cx,
 6542                    );
 6543                },
 6544            ))
 6545            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6546            .on_action(cx.listener(
 6547                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6548                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6549                        let dock = active_dock.read(cx);
 6550                        if let Some(active_panel) = dock.active_panel() {
 6551                            if active_panel.pane(cx).is_none() {
 6552                                let mut recent_pane: Option<Entity<Pane>> = None;
 6553                                let mut recent_timestamp = 0;
 6554                                for pane_handle in workspace.panes() {
 6555                                    let pane = pane_handle.read(cx);
 6556                                    for entry in pane.activation_history() {
 6557                                        if entry.timestamp > recent_timestamp {
 6558                                            recent_timestamp = entry.timestamp;
 6559                                            recent_pane = Some(pane_handle.clone());
 6560                                        }
 6561                                    }
 6562                                }
 6563
 6564                                if let Some(pane) = recent_pane {
 6565                                    pane.update(cx, |pane, cx| {
 6566                                        let current_index = pane.active_item_index();
 6567                                        let items_len = pane.items_len();
 6568                                        if items_len > 0 {
 6569                                            let next_index = if current_index + 1 < items_len {
 6570                                                current_index + 1
 6571                                            } else {
 6572                                                0
 6573                                            };
 6574                                            pane.activate_item(
 6575                                                next_index, false, false, window, cx,
 6576                                            );
 6577                                        }
 6578                                    });
 6579                                    return;
 6580                                }
 6581                            }
 6582                        }
 6583                    }
 6584                    cx.propagate();
 6585                },
 6586            ))
 6587            .on_action(cx.listener(
 6588                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6589                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6590                        let dock = active_dock.read(cx);
 6591                        if let Some(active_panel) = dock.active_panel() {
 6592                            if active_panel.pane(cx).is_none() {
 6593                                let mut recent_pane: Option<Entity<Pane>> = None;
 6594                                let mut recent_timestamp = 0;
 6595                                for pane_handle in workspace.panes() {
 6596                                    let pane = pane_handle.read(cx);
 6597                                    for entry in pane.activation_history() {
 6598                                        if entry.timestamp > recent_timestamp {
 6599                                            recent_timestamp = entry.timestamp;
 6600                                            recent_pane = Some(pane_handle.clone());
 6601                                        }
 6602                                    }
 6603                                }
 6604
 6605                                if let Some(pane) = recent_pane {
 6606                                    pane.update(cx, |pane, cx| {
 6607                                        let current_index = pane.active_item_index();
 6608                                        let items_len = pane.items_len();
 6609                                        if items_len > 0 {
 6610                                            let prev_index = if current_index > 0 {
 6611                                                current_index - 1
 6612                                            } else {
 6613                                                items_len.saturating_sub(1)
 6614                                            };
 6615                                            pane.activate_item(
 6616                                                prev_index, false, false, window, cx,
 6617                                            );
 6618                                        }
 6619                                    });
 6620                                    return;
 6621                                }
 6622                            }
 6623                        }
 6624                    }
 6625                    cx.propagate();
 6626                },
 6627            ))
 6628            .on_action(cx.listener(
 6629                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6630                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6631                        let dock = active_dock.read(cx);
 6632                        if let Some(active_panel) = dock.active_panel() {
 6633                            if active_panel.pane(cx).is_none() {
 6634                                let active_pane = workspace.active_pane().clone();
 6635                                active_pane.update(cx, |pane, cx| {
 6636                                    pane.close_active_item(action, window, cx)
 6637                                        .detach_and_log_err(cx);
 6638                                });
 6639                                return;
 6640                            }
 6641                        }
 6642                    }
 6643                    cx.propagate();
 6644                },
 6645            ))
 6646            .on_action(
 6647                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6648                    let pane = workspace.active_pane().clone();
 6649                    if let Some(item) = pane.read(cx).active_item() {
 6650                        item.toggle_read_only(window, cx);
 6651                    }
 6652                }),
 6653            )
 6654            .on_action(cx.listener(Workspace::cancel))
 6655    }
 6656
 6657    #[cfg(any(test, feature = "test-support"))]
 6658    pub fn set_random_database_id(&mut self) {
 6659        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6660    }
 6661
 6662    #[cfg(any(test, feature = "test-support"))]
 6663    pub(crate) fn test_new(
 6664        project: Entity<Project>,
 6665        window: &mut Window,
 6666        cx: &mut Context<Self>,
 6667    ) -> Self {
 6668        use node_runtime::NodeRuntime;
 6669        use session::Session;
 6670
 6671        let client = project.read(cx).client();
 6672        let user_store = project.read(cx).user_store();
 6673        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6674        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6675        window.activate_window();
 6676        let app_state = Arc::new(AppState {
 6677            languages: project.read(cx).languages().clone(),
 6678            workspace_store,
 6679            client,
 6680            user_store,
 6681            fs: project.read(cx).fs().clone(),
 6682            build_window_options: |_, _| Default::default(),
 6683            node_runtime: NodeRuntime::unavailable(),
 6684            session,
 6685        });
 6686        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6687        workspace
 6688            .active_pane
 6689            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6690        workspace
 6691    }
 6692
 6693    pub fn register_action<A: Action>(
 6694        &mut self,
 6695        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6696    ) -> &mut Self {
 6697        let callback = Arc::new(callback);
 6698
 6699        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6700            let callback = callback.clone();
 6701            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6702                (callback)(workspace, event, window, cx)
 6703            }))
 6704        }));
 6705        self
 6706    }
 6707    pub fn register_action_renderer(
 6708        &mut self,
 6709        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6710    ) -> &mut Self {
 6711        self.workspace_actions.push(Box::new(callback));
 6712        self
 6713    }
 6714
 6715    fn add_workspace_actions_listeners(
 6716        &self,
 6717        mut div: Div,
 6718        window: &mut Window,
 6719        cx: &mut Context<Self>,
 6720    ) -> Div {
 6721        for action in self.workspace_actions.iter() {
 6722            div = (action)(div, self, window, cx)
 6723        }
 6724        div
 6725    }
 6726
 6727    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6728        self.modal_layer.read(cx).has_active_modal()
 6729    }
 6730
 6731    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6732        self.modal_layer.read(cx).active_modal()
 6733    }
 6734
 6735    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6736    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6737    /// If no modal is active, the new modal will be shown.
 6738    ///
 6739    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6740    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6741    /// will not be shown.
 6742    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6743    where
 6744        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6745    {
 6746        self.modal_layer.update(cx, |modal_layer, cx| {
 6747            modal_layer.toggle_modal(window, cx, build)
 6748        })
 6749    }
 6750
 6751    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6752        self.modal_layer
 6753            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6754    }
 6755
 6756    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6757        self.toast_layer
 6758            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6759    }
 6760
 6761    pub fn toggle_centered_layout(
 6762        &mut self,
 6763        _: &ToggleCenteredLayout,
 6764        _: &mut Window,
 6765        cx: &mut Context<Self>,
 6766    ) {
 6767        self.centered_layout = !self.centered_layout;
 6768        if let Some(database_id) = self.database_id() {
 6769            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6770                .detach_and_log_err(cx);
 6771        }
 6772        cx.notify();
 6773    }
 6774
 6775    fn adjust_padding(padding: Option<f32>) -> f32 {
 6776        padding
 6777            .unwrap_or(CenteredPaddingSettings::default().0)
 6778            .clamp(
 6779                CenteredPaddingSettings::MIN_PADDING,
 6780                CenteredPaddingSettings::MAX_PADDING,
 6781            )
 6782    }
 6783
 6784    fn render_dock(
 6785        &self,
 6786        position: DockPosition,
 6787        dock: &Entity<Dock>,
 6788        window: &mut Window,
 6789        cx: &mut App,
 6790    ) -> Option<Div> {
 6791        if self.zoomed_position == Some(position) {
 6792            return None;
 6793        }
 6794
 6795        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6796            let pane = panel.pane(cx)?;
 6797            let follower_states = &self.follower_states;
 6798            leader_border_for_pane(follower_states, &pane, window, cx)
 6799        });
 6800
 6801        Some(
 6802            div()
 6803                .flex()
 6804                .flex_none()
 6805                .overflow_hidden()
 6806                .child(dock.clone())
 6807                .children(leader_border),
 6808        )
 6809    }
 6810
 6811    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 6812        window
 6813            .root::<MultiWorkspace>()
 6814            .flatten()
 6815            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 6816    }
 6817
 6818    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6819        self.zoomed.as_ref()
 6820    }
 6821
 6822    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6823        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6824            return;
 6825        };
 6826        let windows = cx.windows();
 6827        let next_window =
 6828            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6829                || {
 6830                    windows
 6831                        .iter()
 6832                        .cycle()
 6833                        .skip_while(|window| window.window_id() != current_window_id)
 6834                        .nth(1)
 6835                },
 6836            );
 6837
 6838        if let Some(window) = next_window {
 6839            window
 6840                .update(cx, |_, window, _| window.activate_window())
 6841                .ok();
 6842        }
 6843    }
 6844
 6845    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6846        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6847            return;
 6848        };
 6849        let windows = cx.windows();
 6850        let prev_window =
 6851            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6852                || {
 6853                    windows
 6854                        .iter()
 6855                        .rev()
 6856                        .cycle()
 6857                        .skip_while(|window| window.window_id() != current_window_id)
 6858                        .nth(1)
 6859                },
 6860            );
 6861
 6862        if let Some(window) = prev_window {
 6863            window
 6864                .update(cx, |_, window, _| window.activate_window())
 6865                .ok();
 6866        }
 6867    }
 6868
 6869    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6870        if cx.stop_active_drag(window) {
 6871        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6872            dismiss_app_notification(&notification_id, cx);
 6873        } else {
 6874            cx.propagate();
 6875        }
 6876    }
 6877
 6878    fn adjust_dock_size_by_px(
 6879        &mut self,
 6880        panel_size: Pixels,
 6881        dock_pos: DockPosition,
 6882        px: Pixels,
 6883        window: &mut Window,
 6884        cx: &mut Context<Self>,
 6885    ) {
 6886        match dock_pos {
 6887            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6888            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6889            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6890        }
 6891    }
 6892
 6893    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6894        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6895
 6896        self.left_dock.update(cx, |left_dock, cx| {
 6897            if WorkspaceSettings::get_global(cx)
 6898                .resize_all_panels_in_dock
 6899                .contains(&DockPosition::Left)
 6900            {
 6901                left_dock.resize_all_panels(Some(size), window, cx);
 6902            } else {
 6903                left_dock.resize_active_panel(Some(size), window, cx);
 6904            }
 6905        });
 6906        self.clamp_utility_pane_widths(window, cx);
 6907    }
 6908
 6909    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6910        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6911        self.left_dock.read_with(cx, |left_dock, cx| {
 6912            let left_dock_size = left_dock
 6913                .active_panel_size(window, cx)
 6914                .unwrap_or(Pixels::ZERO);
 6915            if left_dock_size + size > self.bounds.right() {
 6916                size = self.bounds.right() - left_dock_size
 6917            }
 6918        });
 6919        self.right_dock.update(cx, |right_dock, cx| {
 6920            if WorkspaceSettings::get_global(cx)
 6921                .resize_all_panels_in_dock
 6922                .contains(&DockPosition::Right)
 6923            {
 6924                right_dock.resize_all_panels(Some(size), window, cx);
 6925            } else {
 6926                right_dock.resize_active_panel(Some(size), window, cx);
 6927            }
 6928        });
 6929        self.clamp_utility_pane_widths(window, cx);
 6930    }
 6931
 6932    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6933        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6934        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6935            if WorkspaceSettings::get_global(cx)
 6936                .resize_all_panels_in_dock
 6937                .contains(&DockPosition::Bottom)
 6938            {
 6939                bottom_dock.resize_all_panels(Some(size), window, cx);
 6940            } else {
 6941                bottom_dock.resize_active_panel(Some(size), window, cx);
 6942            }
 6943        });
 6944        self.clamp_utility_pane_widths(window, cx);
 6945    }
 6946
 6947    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6948        let left_dock_width = self
 6949            .left_dock
 6950            .read(cx)
 6951            .active_panel_size(window, cx)
 6952            .unwrap_or(px(0.0));
 6953        let right_dock_width = self
 6954            .right_dock
 6955            .read(cx)
 6956            .active_panel_size(window, cx)
 6957            .unwrap_or(px(0.0));
 6958        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6959        center_pane_width - px(10.0)
 6960    }
 6961
 6962    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6963        let max_width = self.max_utility_pane_width(window, cx);
 6964
 6965        // Clamp left slot utility pane if it exists
 6966        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6967            let current_width = handle.width(cx);
 6968            if current_width > max_width {
 6969                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6970            }
 6971        }
 6972
 6973        // Clamp right slot utility pane if it exists
 6974        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6975            let current_width = handle.width(cx);
 6976            if current_width > max_width {
 6977                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6978            }
 6979        }
 6980    }
 6981
 6982    fn toggle_edit_predictions_all_files(
 6983        &mut self,
 6984        _: &ToggleEditPrediction,
 6985        _window: &mut Window,
 6986        cx: &mut Context<Self>,
 6987    ) {
 6988        let fs = self.project().read(cx).fs().clone();
 6989        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6990        update_settings_file(fs, cx, move |file, _| {
 6991            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6992        });
 6993    }
 6994
 6995    pub fn show_worktree_trust_security_modal(
 6996        &mut self,
 6997        toggle: bool,
 6998        window: &mut Window,
 6999        cx: &mut Context<Self>,
 7000    ) {
 7001        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7002            if toggle {
 7003                security_modal.update(cx, |security_modal, cx| {
 7004                    security_modal.dismiss(cx);
 7005                })
 7006            } else {
 7007                security_modal.update(cx, |security_modal, cx| {
 7008                    security_modal.refresh_restricted_paths(cx);
 7009                });
 7010            }
 7011        } else {
 7012            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7013                .map(|trusted_worktrees| {
 7014                    trusted_worktrees
 7015                        .read(cx)
 7016                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7017                })
 7018                .unwrap_or(false);
 7019            if has_restricted_worktrees {
 7020                let project = self.project().read(cx);
 7021                let remote_host = project
 7022                    .remote_connection_options(cx)
 7023                    .map(RemoteHostLocation::from);
 7024                let worktree_store = project.worktree_store().downgrade();
 7025                self.toggle_modal(window, cx, |_, cx| {
 7026                    SecurityModal::new(worktree_store, remote_host, cx)
 7027                });
 7028            }
 7029        }
 7030    }
 7031}
 7032
 7033fn leader_border_for_pane(
 7034    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7035    pane: &Entity<Pane>,
 7036    _: &Window,
 7037    cx: &App,
 7038) -> Option<Div> {
 7039    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7040        if state.pane() == pane {
 7041            Some((*leader_id, state))
 7042        } else {
 7043            None
 7044        }
 7045    })?;
 7046
 7047    let mut leader_color = match leader_id {
 7048        CollaboratorId::PeerId(leader_peer_id) => {
 7049            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 7050            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 7051
 7052            cx.theme()
 7053                .players()
 7054                .color_for_participant(leader.participant_index.0)
 7055                .cursor
 7056        }
 7057        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7058    };
 7059    leader_color.fade_out(0.3);
 7060    Some(
 7061        div()
 7062            .absolute()
 7063            .size_full()
 7064            .left_0()
 7065            .top_0()
 7066            .border_2()
 7067            .border_color(leader_color),
 7068    )
 7069}
 7070
 7071fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7072    ZED_WINDOW_POSITION
 7073        .zip(*ZED_WINDOW_SIZE)
 7074        .map(|(position, size)| Bounds {
 7075            origin: position,
 7076            size,
 7077        })
 7078}
 7079
 7080fn open_items(
 7081    serialized_workspace: Option<SerializedWorkspace>,
 7082    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7083    window: &mut Window,
 7084    cx: &mut Context<Workspace>,
 7085) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7086    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7087        Workspace::load_workspace(
 7088            serialized_workspace,
 7089            project_paths_to_open
 7090                .iter()
 7091                .map(|(_, project_path)| project_path)
 7092                .cloned()
 7093                .collect(),
 7094            window,
 7095            cx,
 7096        )
 7097    });
 7098
 7099    cx.spawn_in(window, async move |workspace, cx| {
 7100        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7101
 7102        if let Some(restored_items) = restored_items {
 7103            let restored_items = restored_items.await?;
 7104
 7105            let restored_project_paths = restored_items
 7106                .iter()
 7107                .filter_map(|item| {
 7108                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7109                        .ok()
 7110                        .flatten()
 7111                })
 7112                .collect::<HashSet<_>>();
 7113
 7114            for restored_item in restored_items {
 7115                opened_items.push(restored_item.map(Ok));
 7116            }
 7117
 7118            project_paths_to_open
 7119                .iter_mut()
 7120                .for_each(|(_, project_path)| {
 7121                    if let Some(project_path_to_open) = project_path
 7122                        && restored_project_paths.contains(project_path_to_open)
 7123                    {
 7124                        *project_path = None;
 7125                    }
 7126                });
 7127        } else {
 7128            for _ in 0..project_paths_to_open.len() {
 7129                opened_items.push(None);
 7130            }
 7131        }
 7132        assert!(opened_items.len() == project_paths_to_open.len());
 7133
 7134        let tasks =
 7135            project_paths_to_open
 7136                .into_iter()
 7137                .enumerate()
 7138                .map(|(ix, (abs_path, project_path))| {
 7139                    let workspace = workspace.clone();
 7140                    cx.spawn(async move |cx| {
 7141                        let file_project_path = project_path?;
 7142                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7143                            workspace.project().update(cx, |project, cx| {
 7144                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7145                            })
 7146                        });
 7147
 7148                        // We only want to open file paths here. If one of the items
 7149                        // here is a directory, it was already opened further above
 7150                        // with a `find_or_create_worktree`.
 7151                        if let Ok(task) = abs_path_task
 7152                            && task.await.is_none_or(|p| p.is_file())
 7153                        {
 7154                            return Some((
 7155                                ix,
 7156                                workspace
 7157                                    .update_in(cx, |workspace, window, cx| {
 7158                                        workspace.open_path(
 7159                                            file_project_path,
 7160                                            None,
 7161                                            true,
 7162                                            window,
 7163                                            cx,
 7164                                        )
 7165                                    })
 7166                                    .log_err()?
 7167                                    .await,
 7168                            ));
 7169                        }
 7170                        None
 7171                    })
 7172                });
 7173
 7174        let tasks = tasks.collect::<Vec<_>>();
 7175
 7176        let tasks = futures::future::join_all(tasks);
 7177        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7178            opened_items[ix] = Some(path_open_result);
 7179        }
 7180
 7181        Ok(opened_items)
 7182    })
 7183}
 7184
 7185enum ActivateInDirectionTarget {
 7186    Pane(Entity<Pane>),
 7187    Dock(Entity<Dock>),
 7188}
 7189
 7190fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7191    window
 7192        .update(cx, |multi_workspace, _, cx| {
 7193            let workspace = multi_workspace.workspace().clone();
 7194            workspace.update(cx, |workspace, cx| {
 7195                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7196                    struct DatabaseFailedNotification;
 7197
 7198                    workspace.show_notification(
 7199                        NotificationId::unique::<DatabaseFailedNotification>(),
 7200                        cx,
 7201                        |cx| {
 7202                            cx.new(|cx| {
 7203                                MessageNotification::new("Failed to load the database file.", cx)
 7204                                    .primary_message("File an Issue")
 7205                                    .primary_icon(IconName::Plus)
 7206                                    .primary_on_click(|window, cx| {
 7207                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7208                                    })
 7209                            })
 7210                        },
 7211                    );
 7212                }
 7213            });
 7214        })
 7215        .log_err();
 7216}
 7217
 7218fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7219    if val == 0 {
 7220        ThemeSettings::get_global(cx).ui_font_size(cx)
 7221    } else {
 7222        px(val as f32)
 7223    }
 7224}
 7225
 7226fn adjust_active_dock_size_by_px(
 7227    px: Pixels,
 7228    workspace: &mut Workspace,
 7229    window: &mut Window,
 7230    cx: &mut Context<Workspace>,
 7231) {
 7232    let Some(active_dock) = workspace
 7233        .all_docks()
 7234        .into_iter()
 7235        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7236    else {
 7237        return;
 7238    };
 7239    let dock = active_dock.read(cx);
 7240    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7241        return;
 7242    };
 7243    let dock_pos = dock.position();
 7244    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7245}
 7246
 7247fn adjust_open_docks_size_by_px(
 7248    px: Pixels,
 7249    workspace: &mut Workspace,
 7250    window: &mut Window,
 7251    cx: &mut Context<Workspace>,
 7252) {
 7253    let docks = workspace
 7254        .all_docks()
 7255        .into_iter()
 7256        .filter_map(|dock| {
 7257            if dock.read(cx).is_open() {
 7258                let dock = dock.read(cx);
 7259                let panel_size = dock.active_panel_size(window, cx)?;
 7260                let dock_pos = dock.position();
 7261                Some((panel_size, dock_pos, px))
 7262            } else {
 7263                None
 7264            }
 7265        })
 7266        .collect::<Vec<_>>();
 7267
 7268    docks
 7269        .into_iter()
 7270        .for_each(|(panel_size, dock_pos, offset)| {
 7271            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7272        });
 7273}
 7274
 7275impl Focusable for Workspace {
 7276    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7277        self.active_pane.focus_handle(cx)
 7278    }
 7279}
 7280
 7281#[derive(Clone)]
 7282struct DraggedDock(DockPosition);
 7283
 7284impl Render for DraggedDock {
 7285    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7286        gpui::Empty
 7287    }
 7288}
 7289
 7290impl Render for Workspace {
 7291    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7292        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7293        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7294            log::info!("Rendered first frame");
 7295        }
 7296        let mut context = KeyContext::new_with_defaults();
 7297        context.add("Workspace");
 7298        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 7299        if let Some(status) = self
 7300            .debugger_provider
 7301            .as_ref()
 7302            .and_then(|provider| provider.active_thread_state(cx))
 7303        {
 7304            match status {
 7305                ThreadStatus::Running | ThreadStatus::Stepping => {
 7306                    context.add("debugger_running");
 7307                }
 7308                ThreadStatus::Stopped => context.add("debugger_stopped"),
 7309                ThreadStatus::Exited | ThreadStatus::Ended => {}
 7310            }
 7311        }
 7312
 7313        if self.left_dock.read(cx).is_open() {
 7314            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 7315                context.set("left_dock", active_panel.panel_key());
 7316            }
 7317        }
 7318
 7319        if self.right_dock.read(cx).is_open() {
 7320            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 7321                context.set("right_dock", active_panel.panel_key());
 7322            }
 7323        }
 7324
 7325        if self.bottom_dock.read(cx).is_open() {
 7326            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 7327                context.set("bottom_dock", active_panel.panel_key());
 7328            }
 7329        }
 7330
 7331        let centered_layout = self.centered_layout
 7332            && self.center.panes().len() == 1
 7333            && self.active_item(cx).is_some();
 7334        let render_padding = |size| {
 7335            (size > 0.0).then(|| {
 7336                div()
 7337                    .h_full()
 7338                    .w(relative(size))
 7339                    .bg(cx.theme().colors().editor_background)
 7340                    .border_color(cx.theme().colors().pane_group_border)
 7341            })
 7342        };
 7343        let paddings = if centered_layout {
 7344            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7345            (
 7346                render_padding(Self::adjust_padding(
 7347                    settings.left_padding.map(|padding| padding.0),
 7348                )),
 7349                render_padding(Self::adjust_padding(
 7350                    settings.right_padding.map(|padding| padding.0),
 7351                )),
 7352            )
 7353        } else {
 7354            (None, None)
 7355        };
 7356        let ui_font = theme::setup_ui_font(window, cx);
 7357
 7358        let theme = cx.theme().clone();
 7359        let colors = theme.colors();
 7360        let notification_entities = self
 7361            .notifications
 7362            .iter()
 7363            .map(|(_, notification)| notification.entity_id())
 7364            .collect::<Vec<_>>();
 7365        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7366
 7367        self.actions(div(), window, cx)
 7368            .key_context(context)
 7369            .relative()
 7370            .size_full()
 7371            .flex()
 7372            .flex_col()
 7373            .font(ui_font)
 7374            .gap_0()
 7375                .justify_start()
 7376                .items_start()
 7377                .text_color(colors.text)
 7378                .overflow_hidden()
 7379                .children(self.titlebar_item.clone())
 7380                .on_modifiers_changed(move |_, _, cx| {
 7381                    for &id in &notification_entities {
 7382                        cx.notify(id);
 7383                    }
 7384                })
 7385                .child(
 7386                    div()
 7387                        .size_full()
 7388                        .relative()
 7389                        .flex_1()
 7390                        .flex()
 7391                        .flex_col()
 7392                        .child(
 7393                            div()
 7394                                .id("workspace")
 7395                                .bg(colors.background)
 7396                                .relative()
 7397                                .flex_1()
 7398                                .w_full()
 7399                                .flex()
 7400                                .flex_col()
 7401                                .overflow_hidden()
 7402                                .border_t_1()
 7403                                .border_b_1()
 7404                                .border_color(colors.border)
 7405                                .child({
 7406                                    let this = cx.entity();
 7407                                    canvas(
 7408                                        move |bounds, window, cx| {
 7409                                            this.update(cx, |this, cx| {
 7410                                                let bounds_changed = this.bounds != bounds;
 7411                                                this.bounds = bounds;
 7412
 7413                                                if bounds_changed {
 7414                                                    this.left_dock.update(cx, |dock, cx| {
 7415                                                        dock.clamp_panel_size(
 7416                                                            bounds.size.width,
 7417                                                            window,
 7418                                                            cx,
 7419                                                        )
 7420                                                    });
 7421
 7422                                                    this.right_dock.update(cx, |dock, cx| {
 7423                                                        dock.clamp_panel_size(
 7424                                                            bounds.size.width,
 7425                                                            window,
 7426                                                            cx,
 7427                                                        )
 7428                                                    });
 7429
 7430                                                    this.bottom_dock.update(cx, |dock, cx| {
 7431                                                        dock.clamp_panel_size(
 7432                                                            bounds.size.height,
 7433                                                            window,
 7434                                                            cx,
 7435                                                        )
 7436                                                    });
 7437                                                }
 7438                                            })
 7439                                        },
 7440                                        |_, _, _, _| {},
 7441                                    )
 7442                                    .absolute()
 7443                                    .size_full()
 7444                                })
 7445                                .when(self.zoomed.is_none(), |this| {
 7446                                    this.on_drag_move(cx.listener(
 7447                                        move |workspace,
 7448                                              e: &DragMoveEvent<DraggedDock>,
 7449                                              window,
 7450                                              cx| {
 7451                                            if workspace.previous_dock_drag_coordinates
 7452                                                != Some(e.event.position)
 7453                                            {
 7454                                                workspace.previous_dock_drag_coordinates =
 7455                                                    Some(e.event.position);
 7456                                                match e.drag(cx).0 {
 7457                                                    DockPosition::Left => {
 7458                                                        workspace.resize_left_dock(
 7459                                                            e.event.position.x
 7460                                                                - workspace.bounds.left(),
 7461                                                            window,
 7462                                                            cx,
 7463                                                        );
 7464                                                    }
 7465                                                    DockPosition::Right => {
 7466                                                        workspace.resize_right_dock(
 7467                                                            workspace.bounds.right()
 7468                                                                - e.event.position.x,
 7469                                                            window,
 7470                                                            cx,
 7471                                                        );
 7472                                                    }
 7473                                                    DockPosition::Bottom => {
 7474                                                        workspace.resize_bottom_dock(
 7475                                                            workspace.bounds.bottom()
 7476                                                                - e.event.position.y,
 7477                                                            window,
 7478                                                            cx,
 7479                                                        );
 7480                                                    }
 7481                                                };
 7482                                                workspace.serialize_workspace(window, cx);
 7483                                            }
 7484                                        },
 7485                                    ))
 7486                                    .on_drag_move(cx.listener(
 7487                                        move |workspace,
 7488                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7489                                              window,
 7490                                              cx| {
 7491                                            let slot = e.drag(cx).0;
 7492                                            match slot {
 7493                                                UtilityPaneSlot::Left => {
 7494                                                    let left_dock_width = workspace.left_dock.read(cx)
 7495                                                        .active_panel_size(window, cx)
 7496                                                        .unwrap_or(gpui::px(0.0));
 7497                                                    let new_width = e.event.position.x
 7498                                                        - workspace.bounds.left()
 7499                                                        - left_dock_width;
 7500                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7501                                                }
 7502                                                UtilityPaneSlot::Right => {
 7503                                                    let right_dock_width = workspace.right_dock.read(cx)
 7504                                                        .active_panel_size(window, cx)
 7505                                                        .unwrap_or(gpui::px(0.0));
 7506                                                    let new_width = workspace.bounds.right()
 7507                                                        - e.event.position.x
 7508                                                        - right_dock_width;
 7509                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7510                                                }
 7511                                            }
 7512                                        },
 7513                                    ))
 7514                                })
 7515                                .child({
 7516                                    match bottom_dock_layout {
 7517                                        BottomDockLayout::Full => div()
 7518                                            .flex()
 7519                                            .flex_col()
 7520                                            .h_full()
 7521                                            .child(
 7522                                                div()
 7523                                                    .flex()
 7524                                                    .flex_row()
 7525                                                    .flex_1()
 7526                                                    .overflow_hidden()
 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                                                            .overflow_hidden()
 7548                                                            .child(
 7549                                                                h_flex()
 7550                                                                    .flex_1()
 7551                                                                    .when_some(
 7552                                                                        paddings.0,
 7553                                                                        |this, p| {
 7554                                                                            this.child(
 7555                                                                                p.border_r_1(),
 7556                                                                            )
 7557                                                                        },
 7558                                                                    )
 7559                                                                    .child(self.center.render(
 7560                                                                        self.zoomed.as_ref(),
 7561                                                                        &PaneRenderContext {
 7562                                                                            follower_states:
 7563                                                                                &self.follower_states,
 7564                                                                            active_call: self.active_call(),
 7565                                                                            active_pane: &self.active_pane,
 7566                                                                            app_state: &self.app_state,
 7567                                                                            project: &self.project,
 7568                                                                            workspace: &self.weak_self,
 7569                                                                        },
 7570                                                                        window,
 7571                                                                        cx,
 7572                                                                    ))
 7573                                                                    .when_some(
 7574                                                                        paddings.1,
 7575                                                                        |this, p| {
 7576                                                                            this.child(
 7577                                                                                p.border_l_1(),
 7578                                                                            )
 7579                                                                        },
 7580                                                                    ),
 7581                                                            ),
 7582                                                    )
 7583                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7584                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7585                                                            this.when(pane.expanded(cx), |this| {
 7586                                                                this.child(
 7587                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7588                                                                )
 7589                                                            })
 7590                                                        })
 7591                                                    })
 7592                                                    .children(self.render_dock(
 7593                                                        DockPosition::Right,
 7594                                                        &self.right_dock,
 7595                                                        window,
 7596                                                        cx,
 7597                                                    )),
 7598                                            )
 7599                                            .child(div().w_full().children(self.render_dock(
 7600                                                DockPosition::Bottom,
 7601                                                &self.bottom_dock,
 7602                                                window,
 7603                                                cx
 7604                                            ))),
 7605
 7606                                        BottomDockLayout::LeftAligned => div()
 7607                                            .flex()
 7608                                            .flex_row()
 7609                                            .h_full()
 7610                                            .child(
 7611                                                div()
 7612                                                    .flex()
 7613                                                    .flex_col()
 7614                                                    .flex_1()
 7615                                                    .h_full()
 7616                                                    .child(
 7617                                                        div()
 7618                                                            .flex()
 7619                                                            .flex_row()
 7620                                                            .flex_1()
 7621                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7622                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7623                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7624                                                                    this.when(pane.expanded(cx), |this| {
 7625                                                                        this.child(
 7626                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7627                                                                        )
 7628                                                                    })
 7629                                                                })
 7630                                                            })
 7631                                                            .child(
 7632                                                                div()
 7633                                                                    .flex()
 7634                                                                    .flex_col()
 7635                                                                    .flex_1()
 7636                                                                    .overflow_hidden()
 7637                                                                    .child(
 7638                                                                        h_flex()
 7639                                                                            .flex_1()
 7640                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7641                                                                            .child(self.center.render(
 7642                                                                                self.zoomed.as_ref(),
 7643                                                                                &PaneRenderContext {
 7644                                                                                    follower_states:
 7645                                                                                        &self.follower_states,
 7646                                                                                    active_call: self.active_call(),
 7647                                                                                    active_pane: &self.active_pane,
 7648                                                                                    app_state: &self.app_state,
 7649                                                                                    project: &self.project,
 7650                                                                                    workspace: &self.weak_self,
 7651                                                                                },
 7652                                                                                window,
 7653                                                                                cx,
 7654                                                                            ))
 7655                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7656                                                                    )
 7657                                                            )
 7658                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7659                                                                this.when(pane.expanded(cx), |this| {
 7660                                                                    this.child(
 7661                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7662                                                                    )
 7663                                                                })
 7664                                                            })
 7665                                                    )
 7666                                                    .child(
 7667                                                        div()
 7668                                                            .w_full()
 7669                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7670                                                    ),
 7671                                            )
 7672                                            .children(self.render_dock(
 7673                                                DockPosition::Right,
 7674                                                &self.right_dock,
 7675                                                window,
 7676                                                cx,
 7677                                            )),
 7678
 7679                                        BottomDockLayout::RightAligned => div()
 7680                                            .flex()
 7681                                            .flex_row()
 7682                                            .h_full()
 7683                                            .children(self.render_dock(
 7684                                                DockPosition::Left,
 7685                                                &self.left_dock,
 7686                                                window,
 7687                                                cx,
 7688                                            ))
 7689                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7690                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7691                                                    this.when(pane.expanded(cx), |this| {
 7692                                                        this.child(
 7693                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7694                                                        )
 7695                                                    })
 7696                                                })
 7697                                            })
 7698                                            .child(
 7699                                                div()
 7700                                                    .flex()
 7701                                                    .flex_col()
 7702                                                    .flex_1()
 7703                                                    .h_full()
 7704                                                    .child(
 7705                                                        div()
 7706                                                            .flex()
 7707                                                            .flex_row()
 7708                                                            .flex_1()
 7709                                                            .child(
 7710                                                                div()
 7711                                                                    .flex()
 7712                                                                    .flex_col()
 7713                                                                    .flex_1()
 7714                                                                    .overflow_hidden()
 7715                                                                    .child(
 7716                                                                        h_flex()
 7717                                                                            .flex_1()
 7718                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7719                                                                            .child(self.center.render(
 7720                                                                                self.zoomed.as_ref(),
 7721                                                                                &PaneRenderContext {
 7722                                                                                    follower_states:
 7723                                                                                        &self.follower_states,
 7724                                                                                    active_call: self.active_call(),
 7725                                                                                    active_pane: &self.active_pane,
 7726                                                                                    app_state: &self.app_state,
 7727                                                                                    project: &self.project,
 7728                                                                                    workspace: &self.weak_self,
 7729                                                                                },
 7730                                                                                window,
 7731                                                                                cx,
 7732                                                                            ))
 7733                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7734                                                                    )
 7735                                                            )
 7736                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7737                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7738                                                                    this.when(pane.expanded(cx), |this| {
 7739                                                                        this.child(
 7740                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7741                                                                        )
 7742                                                                    })
 7743                                                                })
 7744                                                            })
 7745                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7746                                                    )
 7747                                                    .child(
 7748                                                        div()
 7749                                                            .w_full()
 7750                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7751                                                    ),
 7752                                            ),
 7753
 7754                                        BottomDockLayout::Contained => div()
 7755                                            .flex()
 7756                                            .flex_row()
 7757                                            .h_full()
 7758                                            .children(self.render_dock(
 7759                                                DockPosition::Left,
 7760                                                &self.left_dock,
 7761                                                window,
 7762                                                cx,
 7763                                            ))
 7764                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7765                                                this.when(pane.expanded(cx), |this| {
 7766                                                    this.child(
 7767                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7768                                                    )
 7769                                                })
 7770                                            })
 7771                                            .child(
 7772                                                div()
 7773                                                    .flex()
 7774                                                    .flex_col()
 7775                                                    .flex_1()
 7776                                                    .overflow_hidden()
 7777                                                    .child(
 7778                                                        h_flex()
 7779                                                            .flex_1()
 7780                                                            .when_some(paddings.0, |this, p| {
 7781                                                                this.child(p.border_r_1())
 7782                                                            })
 7783                                                            .child(self.center.render(
 7784                                                                self.zoomed.as_ref(),
 7785                                                                &PaneRenderContext {
 7786                                                                    follower_states:
 7787                                                                        &self.follower_states,
 7788                                                                    active_call: self.active_call(),
 7789                                                                    active_pane: &self.active_pane,
 7790                                                                    app_state: &self.app_state,
 7791                                                                    project: &self.project,
 7792                                                                    workspace: &self.weak_self,
 7793                                                                },
 7794                                                                window,
 7795                                                                cx,
 7796                                                            ))
 7797                                                            .when_some(paddings.1, |this, p| {
 7798                                                                this.child(p.border_l_1())
 7799                                                            }),
 7800                                                    )
 7801                                                    .children(self.render_dock(
 7802                                                        DockPosition::Bottom,
 7803                                                        &self.bottom_dock,
 7804                                                        window,
 7805                                                        cx,
 7806                                                    )),
 7807                                            )
 7808                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7809                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7810                                                    this.when(pane.expanded(cx), |this| {
 7811                                                        this.child(
 7812                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7813                                                        )
 7814                                                    })
 7815                                                })
 7816                                            })
 7817                                            .children(self.render_dock(
 7818                                                DockPosition::Right,
 7819                                                &self.right_dock,
 7820                                                window,
 7821                                                cx,
 7822                                            )),
 7823                                    }
 7824                                })
 7825                                .children(self.zoomed.as_ref().and_then(|view| {
 7826                                    let zoomed_view = view.upgrade()?;
 7827                                    let div = div()
 7828                                        .occlude()
 7829                                        .absolute()
 7830                                        .overflow_hidden()
 7831                                        .border_color(colors.border)
 7832                                        .bg(colors.background)
 7833                                        .child(zoomed_view)
 7834                                        .inset_0()
 7835                                        .shadow_lg();
 7836
 7837                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7838                                       return Some(div);
 7839                                    }
 7840
 7841                                    Some(match self.zoomed_position {
 7842                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7843                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7844                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7845                                        None => {
 7846                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7847                                        }
 7848                                    })
 7849                                }))
 7850                                .children(self.render_notifications(window, cx)),
 7851                        )
 7852                        .when(self.status_bar_visible(cx), |parent| {
 7853                            parent.child(self.status_bar.clone())
 7854                        })
 7855                        .child(self.modal_layer.clone())
 7856                        .child(self.toast_layer.clone()),
 7857                )
 7858    }
 7859}
 7860
 7861impl WorkspaceStore {
 7862    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7863        Self {
 7864            workspaces: Default::default(),
 7865            _subscriptions: vec![
 7866                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7867                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7868            ],
 7869            client,
 7870        }
 7871    }
 7872
 7873    pub fn update_followers(
 7874        &self,
 7875        project_id: Option<u64>,
 7876        update: proto::update_followers::Variant,
 7877        cx: &App,
 7878    ) -> Option<()> {
 7879        let active_call = ActiveCall::try_global(cx)?;
 7880        let room_id = active_call.read(cx).room()?.read(cx).id();
 7881        self.client
 7882            .send(proto::UpdateFollowers {
 7883                room_id,
 7884                project_id,
 7885                variant: Some(update),
 7886            })
 7887            .log_err()
 7888    }
 7889
 7890    pub async fn handle_follow(
 7891        this: Entity<Self>,
 7892        envelope: TypedEnvelope<proto::Follow>,
 7893        mut cx: AsyncApp,
 7894    ) -> Result<proto::FollowResponse> {
 7895        this.update(&mut cx, |this, cx| {
 7896            let follower = Follower {
 7897                project_id: envelope.payload.project_id,
 7898                peer_id: envelope.original_sender_id()?,
 7899            };
 7900
 7901            let mut response = proto::FollowResponse::default();
 7902
 7903            this.workspaces.retain(|(window_handle, weak_workspace)| {
 7904                let Some(workspace) = weak_workspace.upgrade() else {
 7905                    return false;
 7906                };
 7907                window_handle
 7908                    .update(cx, |_, window, cx| {
 7909                        workspace.update(cx, |workspace, cx| {
 7910                            let handler_response =
 7911                                workspace.handle_follow(follower.project_id, window, cx);
 7912                            if let Some(active_view) = handler_response.active_view
 7913                                && workspace.project.read(cx).remote_id() == follower.project_id
 7914                            {
 7915                                response.active_view = Some(active_view)
 7916                            }
 7917                        });
 7918                    })
 7919                    .is_ok()
 7920            });
 7921
 7922            Ok(response)
 7923        })
 7924    }
 7925
 7926    async fn handle_update_followers(
 7927        this: Entity<Self>,
 7928        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7929        mut cx: AsyncApp,
 7930    ) -> Result<()> {
 7931        let leader_id = envelope.original_sender_id()?;
 7932        let update = envelope.payload;
 7933
 7934        this.update(&mut cx, |this, cx| {
 7935            this.workspaces.retain(|(window_handle, weak_workspace)| {
 7936                let Some(workspace) = weak_workspace.upgrade() else {
 7937                    return false;
 7938                };
 7939                window_handle
 7940                    .update(cx, |_, window, cx| {
 7941                        workspace.update(cx, |workspace, cx| {
 7942                            let project_id = workspace.project.read(cx).remote_id();
 7943                            if update.project_id != project_id && update.project_id.is_some() {
 7944                                return;
 7945                            }
 7946                            workspace.handle_update_followers(
 7947                                leader_id,
 7948                                update.clone(),
 7949                                window,
 7950                                cx,
 7951                            );
 7952                        });
 7953                    })
 7954                    .is_ok()
 7955            });
 7956            Ok(())
 7957        })
 7958    }
 7959
 7960    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 7961        self.workspaces.iter().map(|(_, weak)| weak)
 7962    }
 7963
 7964    pub fn workspaces_with_windows(
 7965        &self,
 7966    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 7967        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 7968    }
 7969}
 7970
 7971impl ViewId {
 7972    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7973        Ok(Self {
 7974            creator: message
 7975                .creator
 7976                .map(CollaboratorId::PeerId)
 7977                .context("creator is missing")?,
 7978            id: message.id,
 7979        })
 7980    }
 7981
 7982    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7983        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7984            Some(proto::ViewId {
 7985                creator: Some(peer_id),
 7986                id: self.id,
 7987            })
 7988        } else {
 7989            None
 7990        }
 7991    }
 7992}
 7993
 7994impl FollowerState {
 7995    fn pane(&self) -> &Entity<Pane> {
 7996        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7997    }
 7998}
 7999
 8000pub trait WorkspaceHandle {
 8001    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8002}
 8003
 8004impl WorkspaceHandle for Entity<Workspace> {
 8005    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8006        self.read(cx)
 8007            .worktrees(cx)
 8008            .flat_map(|worktree| {
 8009                let worktree_id = worktree.read(cx).id();
 8010                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8011                    worktree_id,
 8012                    path: f.path.clone(),
 8013                })
 8014            })
 8015            .collect::<Vec<_>>()
 8016    }
 8017}
 8018
 8019pub async fn last_opened_workspace_location(
 8020    fs: &dyn fs::Fs,
 8021) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8022    DB.last_workspace(fs).await.log_err().flatten()
 8023}
 8024
 8025pub async fn last_session_workspace_locations(
 8026    last_session_id: &str,
 8027    last_session_window_stack: Option<Vec<WindowId>>,
 8028    fs: &dyn fs::Fs,
 8029) -> Option<Vec<SessionWorkspace>> {
 8030    DB.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8031        .await
 8032        .log_err()
 8033}
 8034
 8035pub async fn restore_multiworkspace(
 8036    multi_workspace: SerializedMultiWorkspace,
 8037    app_state: Arc<AppState>,
 8038    cx: &mut AsyncApp,
 8039) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8040    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 8041    let mut group_iter = workspaces.into_iter();
 8042    let first = group_iter
 8043        .next()
 8044        .context("window group must not be empty")?;
 8045
 8046    let window_handle = if first.paths.is_empty() {
 8047        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 8048            .await?
 8049    } else {
 8050        let (window, _items) = cx
 8051            .update(|cx| {
 8052                Workspace::new_local(
 8053                    first.paths.paths().to_vec(),
 8054                    app_state.clone(),
 8055                    None,
 8056                    None,
 8057                    None,
 8058                    cx,
 8059                )
 8060            })
 8061            .await?;
 8062        window
 8063    };
 8064
 8065    for session_workspace in group_iter {
 8066        if session_workspace.paths.is_empty() {
 8067            cx.update(|cx| {
 8068                open_workspace_by_id(
 8069                    session_workspace.workspace_id,
 8070                    app_state.clone(),
 8071                    Some(window_handle),
 8072                    cx,
 8073                )
 8074            })
 8075            .await?;
 8076        } else {
 8077            cx.update(|cx| {
 8078                Workspace::new_local(
 8079                    session_workspace.paths.paths().to_vec(),
 8080                    app_state.clone(),
 8081                    Some(window_handle),
 8082                    None,
 8083                    None,
 8084                    cx,
 8085                )
 8086            })
 8087            .await?;
 8088        }
 8089    }
 8090
 8091    if let Some(target_id) = state.active_workspace_id {
 8092        window_handle
 8093            .update(cx, |multi_workspace, window, cx| {
 8094                let target_index = multi_workspace
 8095                    .workspaces()
 8096                    .iter()
 8097                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8098                if let Some(index) = target_index {
 8099                    multi_workspace.activate_index(index, window, cx);
 8100                } else if !multi_workspace.workspaces().is_empty() {
 8101                    multi_workspace.activate_index(0, window, cx);
 8102                }
 8103            })
 8104            .ok();
 8105    } else {
 8106        window_handle
 8107            .update(cx, |multi_workspace, window, cx| {
 8108                if !multi_workspace.workspaces().is_empty() {
 8109                    multi_workspace.activate_index(0, window, cx);
 8110                }
 8111            })
 8112            .ok();
 8113    }
 8114
 8115    if state.sidebar_open {
 8116        window_handle
 8117            .update(cx, |multi_workspace, window, cx| {
 8118                multi_workspace.open_sidebar(window, cx);
 8119            })
 8120            .ok();
 8121    }
 8122
 8123    window_handle
 8124        .update(cx, |_, window, _cx| {
 8125            window.activate_window();
 8126        })
 8127        .ok();
 8128
 8129    Ok(window_handle)
 8130}
 8131
 8132actions!(
 8133    collab,
 8134    [
 8135        /// Opens the channel notes for the current call.
 8136        ///
 8137        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8138        /// channel in the collab panel.
 8139        ///
 8140        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8141        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8142        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8143        OpenChannelNotes,
 8144        /// Mutes your microphone.
 8145        Mute,
 8146        /// Deafens yourself (mute both microphone and speakers).
 8147        Deafen,
 8148        /// Leaves the current call.
 8149        LeaveCall,
 8150        /// Shares the current project with collaborators.
 8151        ShareProject,
 8152        /// Shares your screen with collaborators.
 8153        ScreenShare,
 8154        /// Copies the current room name and session id for debugging purposes.
 8155        CopyRoomId,
 8156    ]
 8157);
 8158actions!(
 8159    zed,
 8160    [
 8161        /// Opens the Zed log file.
 8162        OpenLog,
 8163        /// Reveals the Zed log file in the system file manager.
 8164        RevealLogInFileManager
 8165    ]
 8166);
 8167
 8168async fn join_channel_internal(
 8169    channel_id: ChannelId,
 8170    app_state: &Arc<AppState>,
 8171    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8172    requesting_workspace: Option<WeakEntity<Workspace>>,
 8173    active_call: &Entity<ActiveCall>,
 8174    cx: &mut AsyncApp,
 8175) -> Result<bool> {
 8176    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 8177        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 8178            return (false, None);
 8179        };
 8180
 8181        let already_in_channel = room.channel_id() == Some(channel_id);
 8182        let should_prompt = room.is_sharing_project()
 8183            && !room.remote_participants().is_empty()
 8184            && !already_in_channel;
 8185        let open_room = if already_in_channel {
 8186            active_call.room().cloned()
 8187        } else {
 8188            None
 8189        };
 8190        (should_prompt, open_room)
 8191    });
 8192
 8193    if let Some(room) = open_room {
 8194        let task = room.update(cx, |room, cx| {
 8195            if let Some((project, host)) = room.most_active_project(cx) {
 8196                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8197            }
 8198
 8199            None
 8200        });
 8201        if let Some(task) = task {
 8202            task.await?;
 8203        }
 8204        return anyhow::Ok(true);
 8205    }
 8206
 8207    if should_prompt {
 8208        if let Some(multi_workspace) = requesting_window {
 8209            let answer = multi_workspace
 8210                .update(cx, |_, window, cx| {
 8211                    window.prompt(
 8212                        PromptLevel::Warning,
 8213                        "Do you want to switch channels?",
 8214                        Some("Leaving this call will unshare your current project."),
 8215                        &["Yes, Join Channel", "Cancel"],
 8216                        cx,
 8217                    )
 8218                })?
 8219                .await;
 8220
 8221            if answer == Ok(1) {
 8222                return Ok(false);
 8223            }
 8224        } else {
 8225            return Ok(false); // unreachable!() hopefully
 8226        }
 8227    }
 8228
 8229    let client = cx.update(|cx| active_call.read(cx).client());
 8230
 8231    let mut client_status = client.status();
 8232
 8233    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8234    'outer: loop {
 8235        let Some(status) = client_status.recv().await else {
 8236            anyhow::bail!("error connecting");
 8237        };
 8238
 8239        match status {
 8240            Status::Connecting
 8241            | Status::Authenticating
 8242            | Status::Authenticated
 8243            | Status::Reconnecting
 8244            | Status::Reauthenticating
 8245            | Status::Reauthenticated => continue,
 8246            Status::Connected { .. } => break 'outer,
 8247            Status::SignedOut | Status::AuthenticationError => {
 8248                return Err(ErrorCode::SignedOut.into());
 8249            }
 8250            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8251            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8252                return Err(ErrorCode::Disconnected.into());
 8253            }
 8254        }
 8255    }
 8256
 8257    let room = active_call
 8258        .update(cx, |active_call, cx| {
 8259            active_call.join_channel(channel_id, cx)
 8260        })
 8261        .await?;
 8262
 8263    let Some(room) = room else {
 8264        return anyhow::Ok(true);
 8265    };
 8266
 8267    room.update(cx, |room, _| room.room_update_completed())
 8268        .await;
 8269
 8270    let task = room.update(cx, |room, cx| {
 8271        if let Some((project, host)) = room.most_active_project(cx) {
 8272            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8273        }
 8274
 8275        // If you are the first to join a channel, see if you should share your project.
 8276        if room.remote_participants().is_empty()
 8277            && !room.local_participant_is_guest()
 8278            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8279        {
 8280            let project = workspace.update(cx, |workspace, cx| {
 8281                let project = workspace.project.read(cx);
 8282
 8283                if !CallSettings::get_global(cx).share_on_join {
 8284                    return None;
 8285                }
 8286
 8287                if (project.is_local() || project.is_via_remote_server())
 8288                    && project.visible_worktrees(cx).any(|tree| {
 8289                        tree.read(cx)
 8290                            .root_entry()
 8291                            .is_some_and(|entry| entry.is_dir())
 8292                    })
 8293                {
 8294                    Some(workspace.project.clone())
 8295                } else {
 8296                    None
 8297                }
 8298            });
 8299            if let Some(project) = project {
 8300                return Some(cx.spawn(async move |room, cx| {
 8301                    room.update(cx, |room, cx| room.share_project(project, cx))?
 8302                        .await?;
 8303                    Ok(())
 8304                }));
 8305            }
 8306        }
 8307
 8308        None
 8309    });
 8310    if let Some(task) = task {
 8311        task.await?;
 8312        return anyhow::Ok(true);
 8313    }
 8314    anyhow::Ok(false)
 8315}
 8316
 8317pub fn join_channel(
 8318    channel_id: ChannelId,
 8319    app_state: Arc<AppState>,
 8320    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8321    requesting_workspace: Option<WeakEntity<Workspace>>,
 8322    cx: &mut App,
 8323) -> Task<Result<()>> {
 8324    let active_call = ActiveCall::global(cx);
 8325    cx.spawn(async move |cx| {
 8326        let result = join_channel_internal(
 8327            channel_id,
 8328            &app_state,
 8329            requesting_window,
 8330            requesting_workspace,
 8331            &active_call,
 8332            cx,
 8333        )
 8334        .await;
 8335
 8336        // join channel succeeded, and opened a window
 8337        if matches!(result, Ok(true)) {
 8338            return anyhow::Ok(());
 8339        }
 8340
 8341        // find an existing workspace to focus and show call controls
 8342        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8343        if active_window.is_none() {
 8344            // no open workspaces, make one to show the error in (blergh)
 8345            let (window_handle, _) = cx
 8346                .update(|cx| {
 8347                    Workspace::new_local(
 8348                        vec![],
 8349                        app_state.clone(),
 8350                        requesting_window,
 8351                        None,
 8352                        None,
 8353                        cx,
 8354                    )
 8355                })
 8356                .await?;
 8357
 8358            window_handle
 8359                .update(cx, |_, window, _cx| {
 8360                    window.activate_window();
 8361                })
 8362                .ok();
 8363
 8364            if result.is_ok() {
 8365                cx.update(|cx| {
 8366                    cx.dispatch_action(&OpenChannelNotes);
 8367                });
 8368            }
 8369
 8370            active_window = Some(window_handle);
 8371        }
 8372
 8373        if let Err(err) = result {
 8374            log::error!("failed to join channel: {}", err);
 8375            if let Some(active_window) = active_window {
 8376                active_window
 8377                    .update(cx, |_, window, cx| {
 8378                        let detail: SharedString = match err.error_code() {
 8379                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8380                            ErrorCode::UpgradeRequired => concat!(
 8381                                "Your are running an unsupported version of Zed. ",
 8382                                "Please update to continue."
 8383                            )
 8384                            .into(),
 8385                            ErrorCode::NoSuchChannel => concat!(
 8386                                "No matching channel was found. ",
 8387                                "Please check the link and try again."
 8388                            )
 8389                            .into(),
 8390                            ErrorCode::Forbidden => concat!(
 8391                                "This channel is private, and you do not have access. ",
 8392                                "Please ask someone to add you and try again."
 8393                            )
 8394                            .into(),
 8395                            ErrorCode::Disconnected => {
 8396                                "Please check your internet connection and try again.".into()
 8397                            }
 8398                            _ => format!("{}\n\nPlease try again.", err).into(),
 8399                        };
 8400                        window.prompt(
 8401                            PromptLevel::Critical,
 8402                            "Failed to join channel",
 8403                            Some(&detail),
 8404                            &["Ok"],
 8405                            cx,
 8406                        )
 8407                    })?
 8408                    .await
 8409                    .ok();
 8410            }
 8411        }
 8412
 8413        // return ok, we showed the error to the user.
 8414        anyhow::Ok(())
 8415    })
 8416}
 8417
 8418pub async fn get_any_active_multi_workspace(
 8419    app_state: Arc<AppState>,
 8420    mut cx: AsyncApp,
 8421) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8422    // find an existing workspace to focus and show call controls
 8423    let active_window = activate_any_workspace_window(&mut cx);
 8424    if active_window.is_none() {
 8425        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))
 8426            .await?;
 8427    }
 8428    activate_any_workspace_window(&mut cx).context("could not open zed")
 8429}
 8430
 8431fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8432    cx.update(|cx| {
 8433        if let Some(workspace_window) = cx
 8434            .active_window()
 8435            .and_then(|window| window.downcast::<MultiWorkspace>())
 8436        {
 8437            return Some(workspace_window);
 8438        }
 8439
 8440        for window in cx.windows() {
 8441            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8442                workspace_window
 8443                    .update(cx, |_, window, _| window.activate_window())
 8444                    .ok();
 8445                return Some(workspace_window);
 8446            }
 8447        }
 8448        None
 8449    })
 8450}
 8451
 8452pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8453    cx.windows()
 8454        .into_iter()
 8455        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8456        .filter(|multi_workspace| {
 8457            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 8458                multi_workspace
 8459                    .workspaces()
 8460                    .iter()
 8461                    .any(|workspace| workspace.read(cx).project.read(cx).is_local())
 8462            })
 8463        })
 8464        .collect()
 8465}
 8466
 8467#[derive(Default)]
 8468pub struct OpenOptions {
 8469    pub visible: Option<OpenVisible>,
 8470    pub focus: Option<bool>,
 8471    pub open_new_workspace: Option<bool>,
 8472    pub prefer_focused_window: bool,
 8473    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 8474    pub env: Option<HashMap<String, String>>,
 8475}
 8476
 8477/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 8478pub fn open_workspace_by_id(
 8479    workspace_id: WorkspaceId,
 8480    app_state: Arc<AppState>,
 8481    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8482    cx: &mut App,
 8483) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 8484    let project_handle = Project::local(
 8485        app_state.client.clone(),
 8486        app_state.node_runtime.clone(),
 8487        app_state.user_store.clone(),
 8488        app_state.languages.clone(),
 8489        app_state.fs.clone(),
 8490        None,
 8491        project::LocalProjectFlags {
 8492            init_worktree_trust: true,
 8493            ..project::LocalProjectFlags::default()
 8494        },
 8495        cx,
 8496    );
 8497
 8498    cx.spawn(async move |cx| {
 8499        let serialized_workspace = persistence::DB
 8500            .workspace_for_id(workspace_id)
 8501            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 8502
 8503        let centered_layout = serialized_workspace.centered_layout;
 8504
 8505        let (window, workspace) = if let Some(window) = requesting_window {
 8506            let workspace = window.update(cx, |multi_workspace, window, cx| {
 8507                let workspace = cx.new(|cx| {
 8508                    let mut workspace = Workspace::new(
 8509                        Some(workspace_id),
 8510                        project_handle.clone(),
 8511                        app_state.clone(),
 8512                        window,
 8513                        cx,
 8514                    );
 8515                    workspace.centered_layout = centered_layout;
 8516                    workspace
 8517                });
 8518                multi_workspace.add_workspace(workspace.clone(), cx);
 8519                workspace
 8520            })?;
 8521            (window, workspace)
 8522        } else {
 8523            let window_bounds_override = window_bounds_env_override();
 8524
 8525            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 8526                (Some(WindowBounds::Windowed(bounds)), None)
 8527            } else if let Some(display) = serialized_workspace.display
 8528                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 8529            {
 8530                (Some(bounds.0), Some(display))
 8531            } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 8532                (Some(bounds), Some(display))
 8533            } else {
 8534                (None, None)
 8535            };
 8536
 8537            let options = cx.update(|cx| {
 8538                let mut options = (app_state.build_window_options)(display, cx);
 8539                options.window_bounds = window_bounds;
 8540                options
 8541            });
 8542
 8543            let window = cx.open_window(options, {
 8544                let app_state = app_state.clone();
 8545                let project_handle = project_handle.clone();
 8546                move |window, cx| {
 8547                    let workspace = cx.new(|cx| {
 8548                        let mut workspace = Workspace::new(
 8549                            Some(workspace_id),
 8550                            project_handle,
 8551                            app_state,
 8552                            window,
 8553                            cx,
 8554                        );
 8555                        workspace.centered_layout = centered_layout;
 8556                        workspace
 8557                    });
 8558                    cx.new(|cx| MultiWorkspace::new(workspace, cx))
 8559                }
 8560            })?;
 8561
 8562            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 8563                multi_workspace.workspace().clone()
 8564            })?;
 8565
 8566            (window, workspace)
 8567        };
 8568
 8569        notify_if_database_failed(window, cx);
 8570
 8571        // Restore items from the serialized workspace
 8572        window
 8573            .update(cx, |_, window, cx| {
 8574                workspace.update(cx, |_workspace, cx| {
 8575                    open_items(Some(serialized_workspace), vec![], window, cx)
 8576                })
 8577            })?
 8578            .await?;
 8579
 8580        window.update(cx, |_, window, cx| {
 8581            workspace.update(cx, |workspace, cx| {
 8582                workspace.serialize_workspace(window, cx);
 8583            });
 8584        })?;
 8585
 8586        Ok(window)
 8587    })
 8588}
 8589
 8590#[allow(clippy::type_complexity)]
 8591pub fn open_paths(
 8592    abs_paths: &[PathBuf],
 8593    app_state: Arc<AppState>,
 8594    open_options: OpenOptions,
 8595    cx: &mut App,
 8596) -> Task<
 8597    anyhow::Result<(
 8598        WindowHandle<MultiWorkspace>,
 8599        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8600    )>,
 8601> {
 8602    let abs_paths = abs_paths.to_vec();
 8603    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 8604    let mut best_match = None;
 8605    let mut open_visible = OpenVisible::All;
 8606    #[cfg(target_os = "windows")]
 8607    let wsl_path = abs_paths
 8608        .iter()
 8609        .find_map(|p| util::paths::WslPath::from_path(p));
 8610
 8611    cx.spawn(async move |cx| {
 8612        if open_options.open_new_workspace != Some(true) {
 8613            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8614            let all_metadatas = futures::future::join_all(all_paths)
 8615                .await
 8616                .into_iter()
 8617                .filter_map(|result| result.ok().flatten())
 8618                .collect::<Vec<_>>();
 8619
 8620            cx.update(|cx| {
 8621                for window in local_workspace_windows(cx) {
 8622                    if let Ok(multi_workspace) = window.read(cx) {
 8623                        for workspace in multi_workspace.workspaces() {
 8624                            let m = workspace.read(cx).project.read(cx).visibility_for_paths(
 8625                                &abs_paths,
 8626                                &all_metadatas,
 8627                                open_options.open_new_workspace == None,
 8628                                cx,
 8629                            );
 8630                            if m > best_match {
 8631                                existing = Some((window, workspace.clone()));
 8632                                best_match = m;
 8633                            } else if best_match.is_none()
 8634                                && open_options.open_new_workspace == Some(false)
 8635                            {
 8636                                existing = Some((window, workspace.clone()))
 8637                            }
 8638                        }
 8639                    }
 8640                }
 8641            });
 8642
 8643            if (open_options.open_new_workspace.is_none()
 8644                || (open_options.open_new_workspace == Some(false)
 8645                    && open_options.prefer_focused_window))
 8646                && (existing.is_none() || open_options.prefer_focused_window)
 8647                && all_metadatas.iter().all(|file| !file.is_dir)
 8648            {
 8649                cx.update(|cx| {
 8650                    if let Some(window) = cx
 8651                        .active_window()
 8652                        .and_then(|window| window.downcast::<MultiWorkspace>())
 8653                        && let Ok(multi_workspace) = window.read(cx)
 8654                    {
 8655                        let active_workspace = multi_workspace.workspace().clone();
 8656                        let project = active_workspace.read(cx).project().read(cx);
 8657                        if project.is_local() && !project.is_via_collab() {
 8658                            existing = Some((window, active_workspace));
 8659                            open_visible = OpenVisible::None;
 8660                            return;
 8661                        }
 8662                    }
 8663                    'outer: for window in local_workspace_windows(cx) {
 8664                        if let Ok(multi_workspace) = window.read(cx) {
 8665                            for workspace in multi_workspace.workspaces() {
 8666                                let project = workspace.read(cx).project().read(cx);
 8667                                if project.is_via_collab() {
 8668                                    continue;
 8669                                }
 8670                                existing = Some((window, workspace.clone()));
 8671                                open_visible = OpenVisible::None;
 8672                                break 'outer;
 8673                            }
 8674                        }
 8675                    }
 8676                });
 8677            }
 8678        }
 8679
 8680        let result = if let Some((existing, target_workspace)) = existing {
 8681            let open_task = existing
 8682                .update(cx, |multi_workspace, window, cx| {
 8683                    window.activate_window();
 8684                    multi_workspace.activate(target_workspace.clone(), cx);
 8685                    target_workspace.update(cx, |workspace, cx| {
 8686                        workspace.open_paths(
 8687                            abs_paths,
 8688                            OpenOptions {
 8689                                visible: Some(open_visible),
 8690                                ..Default::default()
 8691                            },
 8692                            None,
 8693                            window,
 8694                            cx,
 8695                        )
 8696                    })
 8697                })?
 8698                .await;
 8699
 8700            _ = existing.update(cx, |multi_workspace, _, cx| {
 8701                let workspace = multi_workspace.workspace().clone();
 8702                workspace.update(cx, |workspace, cx| {
 8703                    for item in open_task.iter().flatten() {
 8704                        if let Err(e) = item {
 8705                            workspace.show_error(&e, cx);
 8706                        }
 8707                    }
 8708                });
 8709            });
 8710
 8711            Ok((existing, open_task))
 8712        } else {
 8713            let result = cx
 8714                .update(move |cx| {
 8715                    Workspace::new_local(
 8716                        abs_paths,
 8717                        app_state.clone(),
 8718                        open_options.replace_window,
 8719                        open_options.env,
 8720                        None,
 8721                        cx,
 8722                    )
 8723                })
 8724                .await;
 8725
 8726            if let Ok((ref window_handle, _)) = result {
 8727                window_handle
 8728                    .update(cx, |_, window, _cx| {
 8729                        window.activate_window();
 8730                    })
 8731                    .log_err();
 8732            }
 8733
 8734            result
 8735        };
 8736
 8737        #[cfg(target_os = "windows")]
 8738        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8739            && let Ok((multi_workspace_window, _)) = &result
 8740        {
 8741            multi_workspace_window
 8742                .update(cx, move |multi_workspace, _window, cx| {
 8743                    struct OpenInWsl;
 8744                    let workspace = multi_workspace.workspace().clone();
 8745                    workspace.update(cx, |workspace, cx| {
 8746                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8747                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8748                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8749                            cx.new(move |cx| {
 8750                                MessageNotification::new(msg, cx)
 8751                                    .primary_message("Open in WSL")
 8752                                    .primary_icon(IconName::FolderOpen)
 8753                                    .primary_on_click(move |window, cx| {
 8754                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 8755                                                distro: remote::WslConnectionOptions {
 8756                                                        distro_name: distro.clone(),
 8757                                                    user: None,
 8758                                                },
 8759                                                paths: vec![path.clone().into()],
 8760                                            }), cx)
 8761                                    })
 8762                            })
 8763                        });
 8764                    });
 8765                })
 8766                .unwrap();
 8767        };
 8768        result
 8769    })
 8770}
 8771
 8772pub fn open_new(
 8773    open_options: OpenOptions,
 8774    app_state: Arc<AppState>,
 8775    cx: &mut App,
 8776    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8777) -> Task<anyhow::Result<()>> {
 8778    let task = Workspace::new_local(
 8779        Vec::new(),
 8780        app_state,
 8781        open_options.replace_window,
 8782        open_options.env,
 8783        Some(Box::new(init)),
 8784        cx,
 8785    );
 8786    cx.spawn(async move |cx| {
 8787        let (window, _opened_paths) = task.await?;
 8788        window
 8789            .update(cx, |_, window, _cx| {
 8790                window.activate_window();
 8791            })
 8792            .ok();
 8793        Ok(())
 8794    })
 8795}
 8796
 8797pub fn create_and_open_local_file(
 8798    path: &'static Path,
 8799    window: &mut Window,
 8800    cx: &mut Context<Workspace>,
 8801    default_content: impl 'static + Send + FnOnce() -> Rope,
 8802) -> Task<Result<Box<dyn ItemHandle>>> {
 8803    cx.spawn_in(window, async move |workspace, cx| {
 8804        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8805        if !fs.is_file(path).await {
 8806            fs.create_file(path, Default::default()).await?;
 8807            fs.save(path, &default_content(), Default::default())
 8808                .await?;
 8809        }
 8810
 8811        workspace
 8812            .update_in(cx, |workspace, window, cx| {
 8813                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 8814                    let path = workspace
 8815                        .project
 8816                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 8817                    cx.spawn_in(window, async move |workspace, cx| {
 8818                        let path = path.await?;
 8819                        let mut items = workspace
 8820                            .update_in(cx, |workspace, window, cx| {
 8821                                workspace.open_paths(
 8822                                    vec![path.to_path_buf()],
 8823                                    OpenOptions {
 8824                                        visible: Some(OpenVisible::None),
 8825                                        ..Default::default()
 8826                                    },
 8827                                    None,
 8828                                    window,
 8829                                    cx,
 8830                                )
 8831                            })?
 8832                            .await;
 8833                        let item = items.pop().flatten();
 8834                        item.with_context(|| format!("path {path:?} is not a file"))?
 8835                    })
 8836                })
 8837            })?
 8838            .await?
 8839            .await
 8840    })
 8841}
 8842
 8843pub fn open_remote_project_with_new_connection(
 8844    window: WindowHandle<MultiWorkspace>,
 8845    remote_connection: Arc<dyn RemoteConnection>,
 8846    cancel_rx: oneshot::Receiver<()>,
 8847    delegate: Arc<dyn RemoteClientDelegate>,
 8848    app_state: Arc<AppState>,
 8849    paths: Vec<PathBuf>,
 8850    cx: &mut App,
 8851) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8852    cx.spawn(async move |cx| {
 8853        let (workspace_id, serialized_workspace) =
 8854            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8855                .await?;
 8856
 8857        let session = match cx
 8858            .update(|cx| {
 8859                remote::RemoteClient::new(
 8860                    ConnectionIdentifier::Workspace(workspace_id.0),
 8861                    remote_connection,
 8862                    cancel_rx,
 8863                    delegate,
 8864                    cx,
 8865                )
 8866            })
 8867            .await?
 8868        {
 8869            Some(result) => result,
 8870            None => return Ok(Vec::new()),
 8871        };
 8872
 8873        let project = cx.update(|cx| {
 8874            project::Project::remote(
 8875                session,
 8876                app_state.client.clone(),
 8877                app_state.node_runtime.clone(),
 8878                app_state.user_store.clone(),
 8879                app_state.languages.clone(),
 8880                app_state.fs.clone(),
 8881                true,
 8882                cx,
 8883            )
 8884        });
 8885
 8886        open_remote_project_inner(
 8887            project,
 8888            paths,
 8889            workspace_id,
 8890            serialized_workspace,
 8891            app_state,
 8892            window,
 8893            cx,
 8894        )
 8895        .await
 8896    })
 8897}
 8898
 8899pub fn open_remote_project_with_existing_connection(
 8900    connection_options: RemoteConnectionOptions,
 8901    project: Entity<Project>,
 8902    paths: Vec<PathBuf>,
 8903    app_state: Arc<AppState>,
 8904    window: WindowHandle<MultiWorkspace>,
 8905    cx: &mut AsyncApp,
 8906) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8907    cx.spawn(async move |cx| {
 8908        let (workspace_id, serialized_workspace) =
 8909            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8910
 8911        open_remote_project_inner(
 8912            project,
 8913            paths,
 8914            workspace_id,
 8915            serialized_workspace,
 8916            app_state,
 8917            window,
 8918            cx,
 8919        )
 8920        .await
 8921    })
 8922}
 8923
 8924async fn open_remote_project_inner(
 8925    project: Entity<Project>,
 8926    paths: Vec<PathBuf>,
 8927    workspace_id: WorkspaceId,
 8928    serialized_workspace: Option<SerializedWorkspace>,
 8929    app_state: Arc<AppState>,
 8930    window: WindowHandle<MultiWorkspace>,
 8931    cx: &mut AsyncApp,
 8932) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8933    let toolchains = DB.toolchains(workspace_id).await?;
 8934    for (toolchain, worktree_path, path) in toolchains {
 8935        project
 8936            .update(cx, |this, cx| {
 8937                let Some(worktree_id) =
 8938                    this.find_worktree(&worktree_path, cx)
 8939                        .and_then(|(worktree, rel_path)| {
 8940                            if rel_path.is_empty() {
 8941                                Some(worktree.read(cx).id())
 8942                            } else {
 8943                                None
 8944                            }
 8945                        })
 8946                else {
 8947                    return Task::ready(None);
 8948                };
 8949
 8950                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8951            })
 8952            .await;
 8953    }
 8954    let mut project_paths_to_open = vec![];
 8955    let mut project_path_errors = vec![];
 8956
 8957    for path in paths {
 8958        let result = cx
 8959            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 8960            .await;
 8961        match result {
 8962            Ok((_, project_path)) => {
 8963                project_paths_to_open.push((path.clone(), Some(project_path)));
 8964            }
 8965            Err(error) => {
 8966                project_path_errors.push(error);
 8967            }
 8968        };
 8969    }
 8970
 8971    if project_paths_to_open.is_empty() {
 8972        return Err(project_path_errors.pop().context("no paths given")?);
 8973    }
 8974
 8975    let workspace = window.update(cx, |multi_workspace, window, cx| {
 8976        telemetry::event!("SSH Project Opened");
 8977
 8978        let new_workspace = cx.new(|cx| {
 8979            let mut workspace =
 8980                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8981            workspace.update_history(cx);
 8982
 8983            if let Some(ref serialized) = serialized_workspace {
 8984                workspace.centered_layout = serialized.centered_layout;
 8985            }
 8986
 8987            workspace
 8988        });
 8989
 8990        multi_workspace.activate(new_workspace.clone(), cx);
 8991        new_workspace
 8992    })?;
 8993
 8994    let items = window
 8995        .update(cx, |_, window, cx| {
 8996            window.activate_window();
 8997            workspace.update(cx, |_workspace, cx| {
 8998                open_items(serialized_workspace, project_paths_to_open, window, cx)
 8999            })
 9000        })?
 9001        .await?;
 9002
 9003    workspace.update(cx, |workspace, cx| {
 9004        for error in project_path_errors {
 9005            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9006                if let Some(path) = error.error_tag("path") {
 9007                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9008                }
 9009            } else {
 9010                workspace.show_error(&error, cx)
 9011            }
 9012        }
 9013    });
 9014
 9015    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9016}
 9017
 9018fn deserialize_remote_project(
 9019    connection_options: RemoteConnectionOptions,
 9020    paths: Vec<PathBuf>,
 9021    cx: &AsyncApp,
 9022) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9023    cx.background_spawn(async move {
 9024        let remote_connection_id = persistence::DB
 9025            .get_or_create_remote_connection(connection_options)
 9026            .await?;
 9027
 9028        let serialized_workspace =
 9029            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9030
 9031        let workspace_id = if let Some(workspace_id) =
 9032            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9033        {
 9034            workspace_id
 9035        } else {
 9036            persistence::DB.next_id().await?
 9037        };
 9038
 9039        Ok((workspace_id, serialized_workspace))
 9040    })
 9041}
 9042
 9043pub fn join_in_room_project(
 9044    project_id: u64,
 9045    follow_user_id: u64,
 9046    app_state: Arc<AppState>,
 9047    cx: &mut App,
 9048) -> Task<Result<()>> {
 9049    let windows = cx.windows();
 9050    cx.spawn(async move |cx| {
 9051        let existing_window_and_workspace: Option<(
 9052            WindowHandle<MultiWorkspace>,
 9053            Entity<Workspace>,
 9054        )> = windows.into_iter().find_map(|window_handle| {
 9055            window_handle
 9056                .downcast::<MultiWorkspace>()
 9057                .and_then(|window_handle| {
 9058                    window_handle
 9059                        .update(cx, |multi_workspace, _window, cx| {
 9060                            for workspace in multi_workspace.workspaces() {
 9061                                if workspace.read(cx).project().read(cx).remote_id()
 9062                                    == Some(project_id)
 9063                                {
 9064                                    return Some((window_handle, workspace.clone()));
 9065                                }
 9066                            }
 9067                            None
 9068                        })
 9069                        .unwrap_or(None)
 9070                })
 9071        });
 9072
 9073        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9074            existing_window_and_workspace
 9075        {
 9076            existing_window
 9077                .update(cx, |multi_workspace, _, cx| {
 9078                    multi_workspace.activate(target_workspace, cx);
 9079                })
 9080                .ok();
 9081            existing_window
 9082        } else {
 9083            let active_call = cx.update(|cx| ActiveCall::global(cx));
 9084            let room = active_call
 9085                .read_with(cx, |call, _| call.room().cloned())
 9086                .context("not in a call")?;
 9087            let project = room
 9088                .update(cx, |room, cx| {
 9089                    room.join_project(
 9090                        project_id,
 9091                        app_state.languages.clone(),
 9092                        app_state.fs.clone(),
 9093                        cx,
 9094                    )
 9095                })
 9096                .await?;
 9097
 9098            let window_bounds_override = window_bounds_env_override();
 9099            cx.update(|cx| {
 9100                let mut options = (app_state.build_window_options)(None, cx);
 9101                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9102                cx.open_window(options, |window, cx| {
 9103                    let workspace = cx.new(|cx| {
 9104                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9105                    });
 9106                    cx.new(|cx| MultiWorkspace::new(workspace, cx))
 9107                })
 9108            })?
 9109        };
 9110
 9111        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9112            cx.activate(true);
 9113            window.activate_window();
 9114
 9115            // We set the active workspace above, so this is the correct workspace.
 9116            let workspace = multi_workspace.workspace().clone();
 9117            workspace.update(cx, |workspace, cx| {
 9118                if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 9119                    let follow_peer_id = room
 9120                        .read(cx)
 9121                        .remote_participants()
 9122                        .iter()
 9123                        .find(|(_, participant)| participant.user.id == follow_user_id)
 9124                        .map(|(_, p)| p.peer_id)
 9125                        .or_else(|| {
 9126                            // If we couldn't follow the given user, follow the host instead.
 9127                            let collaborator = workspace
 9128                                .project()
 9129                                .read(cx)
 9130                                .collaborators()
 9131                                .values()
 9132                                .find(|collaborator| collaborator.is_host)?;
 9133                            Some(collaborator.peer_id)
 9134                        });
 9135
 9136                    if let Some(follow_peer_id) = follow_peer_id {
 9137                        workspace.follow(follow_peer_id, window, cx);
 9138                    }
 9139                }
 9140            });
 9141        })?;
 9142
 9143        anyhow::Ok(())
 9144    })
 9145}
 9146
 9147pub fn reload(cx: &mut App) {
 9148    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9149    let mut workspace_windows = cx
 9150        .windows()
 9151        .into_iter()
 9152        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9153        .collect::<Vec<_>>();
 9154
 9155    // If multiple windows have unsaved changes, and need a save prompt,
 9156    // prompt in the active window before switching to a different window.
 9157    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9158
 9159    let mut prompt = None;
 9160    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9161        prompt = window
 9162            .update(cx, |_, window, cx| {
 9163                window.prompt(
 9164                    PromptLevel::Info,
 9165                    "Are you sure you want to restart?",
 9166                    None,
 9167                    &["Restart", "Cancel"],
 9168                    cx,
 9169                )
 9170            })
 9171            .ok();
 9172    }
 9173
 9174    cx.spawn(async move |cx| {
 9175        if let Some(prompt) = prompt {
 9176            let answer = prompt.await?;
 9177            if answer != 0 {
 9178                return anyhow::Ok(());
 9179            }
 9180        }
 9181
 9182        // If the user cancels any save prompt, then keep the app open.
 9183        for window in workspace_windows {
 9184            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9185                let workspace = multi_workspace.workspace().clone();
 9186                workspace.update(cx, |workspace, cx| {
 9187                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9188                })
 9189            }) && !should_close.await?
 9190            {
 9191                return anyhow::Ok(());
 9192            }
 9193        }
 9194        cx.update(|cx| cx.restart());
 9195        anyhow::Ok(())
 9196    })
 9197    .detach_and_log_err(cx);
 9198}
 9199
 9200fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9201    let mut parts = value.split(',');
 9202    let x: usize = parts.next()?.parse().ok()?;
 9203    let y: usize = parts.next()?.parse().ok()?;
 9204    Some(point(px(x as f32), px(y as f32)))
 9205}
 9206
 9207fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9208    let mut parts = value.split(',');
 9209    let width: usize = parts.next()?.parse().ok()?;
 9210    let height: usize = parts.next()?.parse().ok()?;
 9211    Some(size(px(width as f32), px(height as f32)))
 9212}
 9213
 9214/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9215/// appropriate.
 9216///
 9217/// The `border_radius_tiling` parameter allows overriding which corners get
 9218/// rounded, independently of the actual window tiling state. This is used
 9219/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9220/// we want square corners on the left (so the sidebar appears flush with the
 9221/// window edge) but we still need the shadow padding for proper visual
 9222/// appearance. Unlike actual window tiling, this only affects border radius -
 9223/// not padding or shadows.
 9224pub fn client_side_decorations(
 9225    element: impl IntoElement,
 9226    window: &mut Window,
 9227    cx: &mut App,
 9228    border_radius_tiling: Tiling,
 9229) -> Stateful<Div> {
 9230    const BORDER_SIZE: Pixels = px(1.0);
 9231    let decorations = window.window_decorations();
 9232    let tiling = match decorations {
 9233        Decorations::Server => Tiling::default(),
 9234        Decorations::Client { tiling } => tiling,
 9235    };
 9236
 9237    match decorations {
 9238        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9239        Decorations::Server => window.set_client_inset(px(0.0)),
 9240    }
 9241
 9242    struct GlobalResizeEdge(ResizeEdge);
 9243    impl Global for GlobalResizeEdge {}
 9244
 9245    div()
 9246        .id("window-backdrop")
 9247        .bg(transparent_black())
 9248        .map(|div| match decorations {
 9249            Decorations::Server => div,
 9250            Decorations::Client { .. } => div
 9251                .when(
 9252                    !(tiling.top
 9253                        || tiling.right
 9254                        || border_radius_tiling.top
 9255                        || border_radius_tiling.right),
 9256                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9257                )
 9258                .when(
 9259                    !(tiling.top
 9260                        || tiling.left
 9261                        || border_radius_tiling.top
 9262                        || border_radius_tiling.left),
 9263                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9264                )
 9265                .when(
 9266                    !(tiling.bottom
 9267                        || tiling.right
 9268                        || border_radius_tiling.bottom
 9269                        || border_radius_tiling.right),
 9270                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9271                )
 9272                .when(
 9273                    !(tiling.bottom
 9274                        || tiling.left
 9275                        || border_radius_tiling.bottom
 9276                        || border_radius_tiling.left),
 9277                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9278                )
 9279                .when(!tiling.top, |div| {
 9280                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9281                })
 9282                .when(!tiling.bottom, |div| {
 9283                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9284                })
 9285                .when(!tiling.left, |div| {
 9286                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9287                })
 9288                .when(!tiling.right, |div| {
 9289                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9290                })
 9291                .on_mouse_move(move |e, window, cx| {
 9292                    let size = window.window_bounds().get_bounds().size;
 9293                    let pos = e.position;
 9294
 9295                    let new_edge =
 9296                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9297
 9298                    let edge = cx.try_global::<GlobalResizeEdge>();
 9299                    if new_edge != edge.map(|edge| edge.0) {
 9300                        window
 9301                            .window_handle()
 9302                            .update(cx, |workspace, _, cx| {
 9303                                cx.notify(workspace.entity_id());
 9304                            })
 9305                            .ok();
 9306                    }
 9307                })
 9308                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9309                    let size = window.window_bounds().get_bounds().size;
 9310                    let pos = e.position;
 9311
 9312                    let edge = match resize_edge(
 9313                        pos,
 9314                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9315                        size,
 9316                        tiling,
 9317                    ) {
 9318                        Some(value) => value,
 9319                        None => return,
 9320                    };
 9321
 9322                    window.start_window_resize(edge);
 9323                }),
 9324        })
 9325        .size_full()
 9326        .child(
 9327            div()
 9328                .cursor(CursorStyle::Arrow)
 9329                .map(|div| match decorations {
 9330                    Decorations::Server => div,
 9331                    Decorations::Client { .. } => div
 9332                        .border_color(cx.theme().colors().border)
 9333                        .when(
 9334                            !(tiling.top
 9335                                || tiling.right
 9336                                || border_radius_tiling.top
 9337                                || border_radius_tiling.right),
 9338                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9339                        )
 9340                        .when(
 9341                            !(tiling.top
 9342                                || tiling.left
 9343                                || border_radius_tiling.top
 9344                                || border_radius_tiling.left),
 9345                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9346                        )
 9347                        .when(
 9348                            !(tiling.bottom
 9349                                || tiling.right
 9350                                || border_radius_tiling.bottom
 9351                                || border_radius_tiling.right),
 9352                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9353                        )
 9354                        .when(
 9355                            !(tiling.bottom
 9356                                || tiling.left
 9357                                || border_radius_tiling.bottom
 9358                                || border_radius_tiling.left),
 9359                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9360                        )
 9361                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9362                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9363                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9364                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9365                        .when(!tiling.is_tiled(), |div| {
 9366                            div.shadow(vec![gpui::BoxShadow {
 9367                                color: Hsla {
 9368                                    h: 0.,
 9369                                    s: 0.,
 9370                                    l: 0.,
 9371                                    a: 0.4,
 9372                                },
 9373                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9374                                spread_radius: px(0.),
 9375                                offset: point(px(0.0), px(0.0)),
 9376                            }])
 9377                        }),
 9378                })
 9379                .on_mouse_move(|_e, _, cx| {
 9380                    cx.stop_propagation();
 9381                })
 9382                .size_full()
 9383                .child(element),
 9384        )
 9385        .map(|div| match decorations {
 9386            Decorations::Server => div,
 9387            Decorations::Client { tiling, .. } => div.child(
 9388                canvas(
 9389                    |_bounds, window, _| {
 9390                        window.insert_hitbox(
 9391                            Bounds::new(
 9392                                point(px(0.0), px(0.0)),
 9393                                window.window_bounds().get_bounds().size,
 9394                            ),
 9395                            HitboxBehavior::Normal,
 9396                        )
 9397                    },
 9398                    move |_bounds, hitbox, window, cx| {
 9399                        let mouse = window.mouse_position();
 9400                        let size = window.window_bounds().get_bounds().size;
 9401                        let Some(edge) =
 9402                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 9403                        else {
 9404                            return;
 9405                        };
 9406                        cx.set_global(GlobalResizeEdge(edge));
 9407                        window.set_cursor_style(
 9408                            match edge {
 9409                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 9410                                ResizeEdge::Left | ResizeEdge::Right => {
 9411                                    CursorStyle::ResizeLeftRight
 9412                                }
 9413                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 9414                                    CursorStyle::ResizeUpLeftDownRight
 9415                                }
 9416                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 9417                                    CursorStyle::ResizeUpRightDownLeft
 9418                                }
 9419                            },
 9420                            &hitbox,
 9421                        );
 9422                    },
 9423                )
 9424                .size_full()
 9425                .absolute(),
 9426            ),
 9427        })
 9428}
 9429
 9430fn resize_edge(
 9431    pos: Point<Pixels>,
 9432    shadow_size: Pixels,
 9433    window_size: Size<Pixels>,
 9434    tiling: Tiling,
 9435) -> Option<ResizeEdge> {
 9436    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 9437    if bounds.contains(&pos) {
 9438        return None;
 9439    }
 9440
 9441    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 9442    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 9443    if !tiling.top && top_left_bounds.contains(&pos) {
 9444        return Some(ResizeEdge::TopLeft);
 9445    }
 9446
 9447    let top_right_bounds = Bounds::new(
 9448        Point::new(window_size.width - corner_size.width, px(0.)),
 9449        corner_size,
 9450    );
 9451    if !tiling.top && top_right_bounds.contains(&pos) {
 9452        return Some(ResizeEdge::TopRight);
 9453    }
 9454
 9455    let bottom_left_bounds = Bounds::new(
 9456        Point::new(px(0.), window_size.height - corner_size.height),
 9457        corner_size,
 9458    );
 9459    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 9460        return Some(ResizeEdge::BottomLeft);
 9461    }
 9462
 9463    let bottom_right_bounds = Bounds::new(
 9464        Point::new(
 9465            window_size.width - corner_size.width,
 9466            window_size.height - corner_size.height,
 9467        ),
 9468        corner_size,
 9469    );
 9470    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 9471        return Some(ResizeEdge::BottomRight);
 9472    }
 9473
 9474    if !tiling.top && pos.y < shadow_size {
 9475        Some(ResizeEdge::Top)
 9476    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 9477        Some(ResizeEdge::Bottom)
 9478    } else if !tiling.left && pos.x < shadow_size {
 9479        Some(ResizeEdge::Left)
 9480    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 9481        Some(ResizeEdge::Right)
 9482    } else {
 9483        None
 9484    }
 9485}
 9486
 9487fn join_pane_into_active(
 9488    active_pane: &Entity<Pane>,
 9489    pane: &Entity<Pane>,
 9490    window: &mut Window,
 9491    cx: &mut App,
 9492) {
 9493    if pane == active_pane {
 9494    } else if pane.read(cx).items_len() == 0 {
 9495        pane.update(cx, |_, cx| {
 9496            cx.emit(pane::Event::Remove {
 9497                focus_on_pane: None,
 9498            });
 9499        })
 9500    } else {
 9501        move_all_items(pane, active_pane, window, cx);
 9502    }
 9503}
 9504
 9505fn move_all_items(
 9506    from_pane: &Entity<Pane>,
 9507    to_pane: &Entity<Pane>,
 9508    window: &mut Window,
 9509    cx: &mut App,
 9510) {
 9511    let destination_is_different = from_pane != to_pane;
 9512    let mut moved_items = 0;
 9513    for (item_ix, item_handle) in from_pane
 9514        .read(cx)
 9515        .items()
 9516        .enumerate()
 9517        .map(|(ix, item)| (ix, item.clone()))
 9518        .collect::<Vec<_>>()
 9519    {
 9520        let ix = item_ix - moved_items;
 9521        if destination_is_different {
 9522            // Close item from previous pane
 9523            from_pane.update(cx, |source, cx| {
 9524                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 9525            });
 9526            moved_items += 1;
 9527        }
 9528
 9529        // This automatically removes duplicate items in the pane
 9530        to_pane.update(cx, |destination, cx| {
 9531            destination.add_item(item_handle, true, true, None, window, cx);
 9532            window.focus(&destination.focus_handle(cx), cx)
 9533        });
 9534    }
 9535}
 9536
 9537pub fn move_item(
 9538    source: &Entity<Pane>,
 9539    destination: &Entity<Pane>,
 9540    item_id_to_move: EntityId,
 9541    destination_index: usize,
 9542    activate: bool,
 9543    window: &mut Window,
 9544    cx: &mut App,
 9545) {
 9546    let Some((item_ix, item_handle)) = source
 9547        .read(cx)
 9548        .items()
 9549        .enumerate()
 9550        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 9551        .map(|(ix, item)| (ix, item.clone()))
 9552    else {
 9553        // Tab was closed during drag
 9554        return;
 9555    };
 9556
 9557    if source != destination {
 9558        // Close item from previous pane
 9559        source.update(cx, |source, cx| {
 9560            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9561        });
 9562    }
 9563
 9564    // This automatically removes duplicate items in the pane
 9565    destination.update(cx, |destination, cx| {
 9566        destination.add_item_inner(
 9567            item_handle,
 9568            activate,
 9569            activate,
 9570            activate,
 9571            Some(destination_index),
 9572            window,
 9573            cx,
 9574        );
 9575        if activate {
 9576            window.focus(&destination.focus_handle(cx), cx)
 9577        }
 9578    });
 9579}
 9580
 9581pub fn move_active_item(
 9582    source: &Entity<Pane>,
 9583    destination: &Entity<Pane>,
 9584    focus_destination: bool,
 9585    close_if_empty: bool,
 9586    window: &mut Window,
 9587    cx: &mut App,
 9588) {
 9589    if source == destination {
 9590        return;
 9591    }
 9592    let Some(active_item) = source.read(cx).active_item() else {
 9593        return;
 9594    };
 9595    source.update(cx, |source_pane, cx| {
 9596        let item_id = active_item.item_id();
 9597        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9598        destination.update(cx, |target_pane, cx| {
 9599            target_pane.add_item(
 9600                active_item,
 9601                focus_destination,
 9602                focus_destination,
 9603                Some(target_pane.items_len()),
 9604                window,
 9605                cx,
 9606            );
 9607        });
 9608    });
 9609}
 9610
 9611pub fn clone_active_item(
 9612    workspace_id: Option<WorkspaceId>,
 9613    source: &Entity<Pane>,
 9614    destination: &Entity<Pane>,
 9615    focus_destination: bool,
 9616    window: &mut Window,
 9617    cx: &mut App,
 9618) {
 9619    if source == destination {
 9620        return;
 9621    }
 9622    let Some(active_item) = source.read(cx).active_item() else {
 9623        return;
 9624    };
 9625    if !active_item.can_split(cx) {
 9626        return;
 9627    }
 9628    let destination = destination.downgrade();
 9629    let task = active_item.clone_on_split(workspace_id, window, cx);
 9630    window
 9631        .spawn(cx, async move |cx| {
 9632            let Some(clone) = task.await else {
 9633                return;
 9634            };
 9635            destination
 9636                .update_in(cx, |target_pane, window, cx| {
 9637                    target_pane.add_item(
 9638                        clone,
 9639                        focus_destination,
 9640                        focus_destination,
 9641                        Some(target_pane.items_len()),
 9642                        window,
 9643                        cx,
 9644                    );
 9645                })
 9646                .log_err();
 9647        })
 9648        .detach();
 9649}
 9650
 9651#[derive(Debug)]
 9652pub struct WorkspacePosition {
 9653    pub window_bounds: Option<WindowBounds>,
 9654    pub display: Option<Uuid>,
 9655    pub centered_layout: bool,
 9656}
 9657
 9658pub fn remote_workspace_position_from_db(
 9659    connection_options: RemoteConnectionOptions,
 9660    paths_to_open: &[PathBuf],
 9661    cx: &App,
 9662) -> Task<Result<WorkspacePosition>> {
 9663    let paths = paths_to_open.to_vec();
 9664
 9665    cx.background_spawn(async move {
 9666        let remote_connection_id = persistence::DB
 9667            .get_or_create_remote_connection(connection_options)
 9668            .await
 9669            .context("fetching serialized ssh project")?;
 9670        let serialized_workspace =
 9671            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9672
 9673        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9674            (Some(WindowBounds::Windowed(bounds)), None)
 9675        } else {
 9676            let restorable_bounds = serialized_workspace
 9677                .as_ref()
 9678                .and_then(|workspace| {
 9679                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9680                })
 9681                .or_else(|| persistence::read_default_window_bounds());
 9682
 9683            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9684                (Some(serialized_bounds), Some(serialized_display))
 9685            } else {
 9686                (None, None)
 9687            }
 9688        };
 9689
 9690        let centered_layout = serialized_workspace
 9691            .as_ref()
 9692            .map(|w| w.centered_layout)
 9693            .unwrap_or(false);
 9694
 9695        Ok(WorkspacePosition {
 9696            window_bounds,
 9697            display,
 9698            centered_layout,
 9699        })
 9700    })
 9701}
 9702
 9703pub fn with_active_or_new_workspace(
 9704    cx: &mut App,
 9705    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9706) {
 9707    match cx
 9708        .active_window()
 9709        .and_then(|w| w.downcast::<MultiWorkspace>())
 9710    {
 9711        Some(multi_workspace) => {
 9712            cx.defer(move |cx| {
 9713                multi_workspace
 9714                    .update(cx, |multi_workspace, window, cx| {
 9715                        let workspace = multi_workspace.workspace().clone();
 9716                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
 9717                    })
 9718                    .log_err();
 9719            });
 9720        }
 9721        None => {
 9722            let app_state = AppState::global(cx);
 9723            if let Some(app_state) = app_state.upgrade() {
 9724                open_new(
 9725                    OpenOptions::default(),
 9726                    app_state,
 9727                    cx,
 9728                    move |workspace, window, cx| f(workspace, window, cx),
 9729                )
 9730                .detach_and_log_err(cx);
 9731            }
 9732        }
 9733    }
 9734}
 9735
 9736#[cfg(test)]
 9737mod tests {
 9738    use std::{cell::RefCell, rc::Rc};
 9739
 9740    use super::*;
 9741    use crate::{
 9742        dock::{PanelEvent, test::TestPanel},
 9743        item::{
 9744            ItemBufferKind, ItemEvent,
 9745            test::{TestItem, TestProjectItem},
 9746        },
 9747    };
 9748    use fs::FakeFs;
 9749    use gpui::{
 9750        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9751        UpdateGlobal, VisualTestContext, px,
 9752    };
 9753    use project::{Project, ProjectEntryId};
 9754    use serde_json::json;
 9755    use settings::SettingsStore;
 9756    use util::rel_path::rel_path;
 9757
 9758    #[gpui::test]
 9759    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9760        init_test(cx);
 9761
 9762        let fs = FakeFs::new(cx.executor());
 9763        let project = Project::test(fs, [], cx).await;
 9764        let (workspace, cx) =
 9765            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9766
 9767        // Adding an item with no ambiguity renders the tab without detail.
 9768        let item1 = cx.new(|cx| {
 9769            let mut item = TestItem::new(cx);
 9770            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9771            item
 9772        });
 9773        workspace.update_in(cx, |workspace, window, cx| {
 9774            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9775        });
 9776        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9777
 9778        // Adding an item that creates ambiguity increases the level of detail on
 9779        // both tabs.
 9780        let item2 = cx.new_window_entity(|_window, cx| {
 9781            let mut item = TestItem::new(cx);
 9782            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9783            item
 9784        });
 9785        workspace.update_in(cx, |workspace, window, cx| {
 9786            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9787        });
 9788        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9789        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9790
 9791        // Adding an item that creates ambiguity increases the level of detail only
 9792        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9793        // we stop at the highest detail available.
 9794        let item3 = cx.new(|cx| {
 9795            let mut item = TestItem::new(cx);
 9796            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9797            item
 9798        });
 9799        workspace.update_in(cx, |workspace, window, cx| {
 9800            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9801        });
 9802        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9803        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9804        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9805    }
 9806
 9807    #[gpui::test]
 9808    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9809        init_test(cx);
 9810
 9811        let fs = FakeFs::new(cx.executor());
 9812        fs.insert_tree(
 9813            "/root1",
 9814            json!({
 9815                "one.txt": "",
 9816                "two.txt": "",
 9817            }),
 9818        )
 9819        .await;
 9820        fs.insert_tree(
 9821            "/root2",
 9822            json!({
 9823                "three.txt": "",
 9824            }),
 9825        )
 9826        .await;
 9827
 9828        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9829        let (workspace, cx) =
 9830            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9831        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9832        let worktree_id = project.update(cx, |project, cx| {
 9833            project.worktrees(cx).next().unwrap().read(cx).id()
 9834        });
 9835
 9836        let item1 = cx.new(|cx| {
 9837            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9838        });
 9839        let item2 = cx.new(|cx| {
 9840            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9841        });
 9842
 9843        // Add an item to an empty pane
 9844        workspace.update_in(cx, |workspace, window, cx| {
 9845            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9846        });
 9847        project.update(cx, |project, cx| {
 9848            assert_eq!(
 9849                project.active_entry(),
 9850                project
 9851                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9852                    .map(|e| e.id)
 9853            );
 9854        });
 9855        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9856
 9857        // Add a second item to a non-empty pane
 9858        workspace.update_in(cx, |workspace, window, cx| {
 9859            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9860        });
 9861        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9862        project.update(cx, |project, cx| {
 9863            assert_eq!(
 9864                project.active_entry(),
 9865                project
 9866                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9867                    .map(|e| e.id)
 9868            );
 9869        });
 9870
 9871        // Close the active item
 9872        pane.update_in(cx, |pane, window, cx| {
 9873            pane.close_active_item(&Default::default(), window, cx)
 9874        })
 9875        .await
 9876        .unwrap();
 9877        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9878        project.update(cx, |project, cx| {
 9879            assert_eq!(
 9880                project.active_entry(),
 9881                project
 9882                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9883                    .map(|e| e.id)
 9884            );
 9885        });
 9886
 9887        // Add a project folder
 9888        project
 9889            .update(cx, |project, cx| {
 9890                project.find_or_create_worktree("root2", true, cx)
 9891            })
 9892            .await
 9893            .unwrap();
 9894        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9895
 9896        // Remove a project folder
 9897        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9898        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9899    }
 9900
 9901    #[gpui::test]
 9902    async fn test_close_window(cx: &mut TestAppContext) {
 9903        init_test(cx);
 9904
 9905        let fs = FakeFs::new(cx.executor());
 9906        fs.insert_tree("/root", json!({ "one": "" })).await;
 9907
 9908        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9909        let (workspace, cx) =
 9910            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9911
 9912        // When there are no dirty items, there's nothing to do.
 9913        let item1 = cx.new(TestItem::new);
 9914        workspace.update_in(cx, |w, window, cx| {
 9915            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9916        });
 9917        let task = workspace.update_in(cx, |w, window, cx| {
 9918            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9919        });
 9920        assert!(task.await.unwrap());
 9921
 9922        // When there are dirty untitled items, prompt to save each one. If the user
 9923        // cancels any prompt, then abort.
 9924        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9925        let item3 = cx.new(|cx| {
 9926            TestItem::new(cx)
 9927                .with_dirty(true)
 9928                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9929        });
 9930        workspace.update_in(cx, |w, window, cx| {
 9931            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9932            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9933        });
 9934        let task = workspace.update_in(cx, |w, window, cx| {
 9935            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9936        });
 9937        cx.executor().run_until_parked();
 9938        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9939        cx.executor().run_until_parked();
 9940        assert!(!cx.has_pending_prompt());
 9941        assert!(!task.await.unwrap());
 9942    }
 9943
 9944    #[gpui::test]
 9945    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9946        init_test(cx);
 9947
 9948        // Register TestItem as a serializable item
 9949        cx.update(|cx| {
 9950            register_serializable_item::<TestItem>(cx);
 9951        });
 9952
 9953        let fs = FakeFs::new(cx.executor());
 9954        fs.insert_tree("/root", json!({ "one": "" })).await;
 9955
 9956        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9957        let (workspace, cx) =
 9958            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9959
 9960        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9961        let item1 = cx.new(|cx| {
 9962            TestItem::new(cx)
 9963                .with_dirty(true)
 9964                .with_serialize(|| Some(Task::ready(Ok(()))))
 9965        });
 9966        let item2 = cx.new(|cx| {
 9967            TestItem::new(cx)
 9968                .with_dirty(true)
 9969                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9970                .with_serialize(|| Some(Task::ready(Ok(()))))
 9971        });
 9972        workspace.update_in(cx, |w, window, cx| {
 9973            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9974            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9975        });
 9976        let task = workspace.update_in(cx, |w, window, cx| {
 9977            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9978        });
 9979        assert!(task.await.unwrap());
 9980    }
 9981
 9982    #[gpui::test]
 9983    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9984        init_test(cx);
 9985
 9986        let fs = FakeFs::new(cx.executor());
 9987
 9988        let project = Project::test(fs, None, cx).await;
 9989        let (workspace, cx) =
 9990            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9991
 9992        let item1 = cx.new(|cx| {
 9993            TestItem::new(cx)
 9994                .with_dirty(true)
 9995                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9996        });
 9997        let item2 = cx.new(|cx| {
 9998            TestItem::new(cx)
 9999                .with_dirty(true)
10000                .with_conflict(true)
10001                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10002        });
10003        let item3 = cx.new(|cx| {
10004            TestItem::new(cx)
10005                .with_dirty(true)
10006                .with_conflict(true)
10007                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10008        });
10009        let item4 = cx.new(|cx| {
10010            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10011                let project_item = TestProjectItem::new_untitled(cx);
10012                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10013                project_item
10014            }])
10015        });
10016        let pane = workspace.update_in(cx, |workspace, window, cx| {
10017            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10018            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10019            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10020            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10021            workspace.active_pane().clone()
10022        });
10023
10024        let close_items = pane.update_in(cx, |pane, window, cx| {
10025            pane.activate_item(1, true, true, window, cx);
10026            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10027            let item1_id = item1.item_id();
10028            let item3_id = item3.item_id();
10029            let item4_id = item4.item_id();
10030            pane.close_items(window, cx, SaveIntent::Close, move |id| {
10031                [item1_id, item3_id, item4_id].contains(&id)
10032            })
10033        });
10034        cx.executor().run_until_parked();
10035
10036        assert!(cx.has_pending_prompt());
10037        cx.simulate_prompt_answer("Save all");
10038
10039        cx.executor().run_until_parked();
10040
10041        // Item 1 is saved. There's a prompt to save item 3.
10042        pane.update(cx, |pane, cx| {
10043            assert_eq!(item1.read(cx).save_count, 1);
10044            assert_eq!(item1.read(cx).save_as_count, 0);
10045            assert_eq!(item1.read(cx).reload_count, 0);
10046            assert_eq!(pane.items_len(), 3);
10047            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10048        });
10049        assert!(cx.has_pending_prompt());
10050
10051        // Cancel saving item 3.
10052        cx.simulate_prompt_answer("Discard");
10053        cx.executor().run_until_parked();
10054
10055        // Item 3 is reloaded. There's a prompt to save item 4.
10056        pane.update(cx, |pane, cx| {
10057            assert_eq!(item3.read(cx).save_count, 0);
10058            assert_eq!(item3.read(cx).save_as_count, 0);
10059            assert_eq!(item3.read(cx).reload_count, 1);
10060            assert_eq!(pane.items_len(), 2);
10061            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10062        });
10063
10064        // There's a prompt for a path for item 4.
10065        cx.simulate_new_path_selection(|_| Some(Default::default()));
10066        close_items.await.unwrap();
10067
10068        // The requested items are closed.
10069        pane.update(cx, |pane, cx| {
10070            assert_eq!(item4.read(cx).save_count, 0);
10071            assert_eq!(item4.read(cx).save_as_count, 1);
10072            assert_eq!(item4.read(cx).reload_count, 0);
10073            assert_eq!(pane.items_len(), 1);
10074            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10075        });
10076    }
10077
10078    #[gpui::test]
10079    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10080        init_test(cx);
10081
10082        let fs = FakeFs::new(cx.executor());
10083        let project = Project::test(fs, [], cx).await;
10084        let (workspace, cx) =
10085            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10086
10087        // Create several workspace items with single project entries, and two
10088        // workspace items with multiple project entries.
10089        let single_entry_items = (0..=4)
10090            .map(|project_entry_id| {
10091                cx.new(|cx| {
10092                    TestItem::new(cx)
10093                        .with_dirty(true)
10094                        .with_project_items(&[dirty_project_item(
10095                            project_entry_id,
10096                            &format!("{project_entry_id}.txt"),
10097                            cx,
10098                        )])
10099                })
10100            })
10101            .collect::<Vec<_>>();
10102        let item_2_3 = cx.new(|cx| {
10103            TestItem::new(cx)
10104                .with_dirty(true)
10105                .with_buffer_kind(ItemBufferKind::Multibuffer)
10106                .with_project_items(&[
10107                    single_entry_items[2].read(cx).project_items[0].clone(),
10108                    single_entry_items[3].read(cx).project_items[0].clone(),
10109                ])
10110        });
10111        let item_3_4 = cx.new(|cx| {
10112            TestItem::new(cx)
10113                .with_dirty(true)
10114                .with_buffer_kind(ItemBufferKind::Multibuffer)
10115                .with_project_items(&[
10116                    single_entry_items[3].read(cx).project_items[0].clone(),
10117                    single_entry_items[4].read(cx).project_items[0].clone(),
10118                ])
10119        });
10120
10121        // Create two panes that contain the following project entries:
10122        //   left pane:
10123        //     multi-entry items:   (2, 3)
10124        //     single-entry items:  0, 2, 3, 4
10125        //   right pane:
10126        //     single-entry items:  4, 1
10127        //     multi-entry items:   (3, 4)
10128        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10129            let left_pane = workspace.active_pane().clone();
10130            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10131            workspace.add_item_to_active_pane(
10132                single_entry_items[0].boxed_clone(),
10133                None,
10134                true,
10135                window,
10136                cx,
10137            );
10138            workspace.add_item_to_active_pane(
10139                single_entry_items[2].boxed_clone(),
10140                None,
10141                true,
10142                window,
10143                cx,
10144            );
10145            workspace.add_item_to_active_pane(
10146                single_entry_items[3].boxed_clone(),
10147                None,
10148                true,
10149                window,
10150                cx,
10151            );
10152            workspace.add_item_to_active_pane(
10153                single_entry_items[4].boxed_clone(),
10154                None,
10155                true,
10156                window,
10157                cx,
10158            );
10159
10160            let right_pane =
10161                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10162
10163            let boxed_clone = single_entry_items[1].boxed_clone();
10164            let right_pane = window.spawn(cx, async move |cx| {
10165                right_pane.await.inspect(|right_pane| {
10166                    right_pane
10167                        .update_in(cx, |pane, window, cx| {
10168                            pane.add_item(boxed_clone, true, true, None, window, cx);
10169                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10170                        })
10171                        .unwrap();
10172                })
10173            });
10174
10175            (left_pane, right_pane)
10176        });
10177        let right_pane = right_pane.await.unwrap();
10178        cx.focus(&right_pane);
10179
10180        let close = right_pane.update_in(cx, |pane, window, cx| {
10181            pane.close_all_items(&CloseAllItems::default(), window, cx)
10182                .unwrap()
10183        });
10184        cx.executor().run_until_parked();
10185
10186        let msg = cx.pending_prompt().unwrap().0;
10187        assert!(msg.contains("1.txt"));
10188        assert!(!msg.contains("2.txt"));
10189        assert!(!msg.contains("3.txt"));
10190        assert!(!msg.contains("4.txt"));
10191
10192        // With best-effort close, cancelling item 1 keeps it open but items 4
10193        // and (3,4) still close since their entries exist in left pane.
10194        cx.simulate_prompt_answer("Cancel");
10195        close.await;
10196
10197        right_pane.read_with(cx, |pane, _| {
10198            assert_eq!(pane.items_len(), 1);
10199        });
10200
10201        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10202        left_pane
10203            .update_in(cx, |left_pane, window, cx| {
10204                left_pane.close_item_by_id(
10205                    single_entry_items[3].entity_id(),
10206                    SaveIntent::Skip,
10207                    window,
10208                    cx,
10209                )
10210            })
10211            .await
10212            .unwrap();
10213
10214        let close = left_pane.update_in(cx, |pane, window, cx| {
10215            pane.close_all_items(&CloseAllItems::default(), window, cx)
10216                .unwrap()
10217        });
10218        cx.executor().run_until_parked();
10219
10220        let details = cx.pending_prompt().unwrap().1;
10221        assert!(details.contains("0.txt"));
10222        assert!(details.contains("3.txt"));
10223        assert!(details.contains("4.txt"));
10224        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10225        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10226        // assert!(!details.contains("2.txt"));
10227
10228        cx.simulate_prompt_answer("Save all");
10229        cx.executor().run_until_parked();
10230        close.await;
10231
10232        left_pane.read_with(cx, |pane, _| {
10233            assert_eq!(pane.items_len(), 0);
10234        });
10235    }
10236
10237    #[gpui::test]
10238    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10239        init_test(cx);
10240
10241        let fs = FakeFs::new(cx.executor());
10242        let project = Project::test(fs, [], cx).await;
10243        let (workspace, cx) =
10244            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10245        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10246
10247        let item = cx.new(|cx| {
10248            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10249        });
10250        let item_id = item.entity_id();
10251        workspace.update_in(cx, |workspace, window, cx| {
10252            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10253        });
10254
10255        // Autosave on window change.
10256        item.update(cx, |item, cx| {
10257            SettingsStore::update_global(cx, |settings, cx| {
10258                settings.update_user_settings(cx, |settings| {
10259                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
10260                })
10261            });
10262            item.is_dirty = true;
10263        });
10264
10265        // Deactivating the window saves the file.
10266        cx.deactivate_window();
10267        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10268
10269        // Re-activating the window doesn't save the file.
10270        cx.update(|window, _| window.activate_window());
10271        cx.executor().run_until_parked();
10272        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10273
10274        // Autosave on focus change.
10275        item.update_in(cx, |item, window, cx| {
10276            cx.focus_self(window);
10277            SettingsStore::update_global(cx, |settings, cx| {
10278                settings.update_user_settings(cx, |settings| {
10279                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10280                })
10281            });
10282            item.is_dirty = true;
10283        });
10284        // Blurring the item saves the file.
10285        item.update_in(cx, |_, window, _| window.blur());
10286        cx.executor().run_until_parked();
10287        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
10288
10289        // Deactivating the window still saves the file.
10290        item.update_in(cx, |item, window, cx| {
10291            cx.focus_self(window);
10292            item.is_dirty = true;
10293        });
10294        cx.deactivate_window();
10295        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
10296
10297        // Autosave after delay.
10298        item.update(cx, |item, cx| {
10299            SettingsStore::update_global(cx, |settings, cx| {
10300                settings.update_user_settings(cx, |settings| {
10301                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
10302                        milliseconds: 500.into(),
10303                    });
10304                })
10305            });
10306            item.is_dirty = true;
10307            cx.emit(ItemEvent::Edit);
10308        });
10309
10310        // Delay hasn't fully expired, so the file is still dirty and unsaved.
10311        cx.executor().advance_clock(Duration::from_millis(250));
10312        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
10313
10314        // After delay expires, the file is saved.
10315        cx.executor().advance_clock(Duration::from_millis(250));
10316        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10317
10318        // Autosave after delay, should save earlier than delay if tab is closed
10319        item.update(cx, |item, cx| {
10320            item.is_dirty = true;
10321            cx.emit(ItemEvent::Edit);
10322        });
10323        cx.executor().advance_clock(Duration::from_millis(250));
10324        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10325
10326        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
10327        pane.update_in(cx, |pane, window, cx| {
10328            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10329        })
10330        .await
10331        .unwrap();
10332        assert!(!cx.has_pending_prompt());
10333        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10334
10335        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10336        workspace.update_in(cx, |workspace, window, cx| {
10337            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10338        });
10339        item.update_in(cx, |item, _window, cx| {
10340            item.is_dirty = true;
10341            for project_item in &mut item.project_items {
10342                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10343            }
10344        });
10345        cx.run_until_parked();
10346        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10347
10348        // Autosave on focus change, ensuring closing the tab counts as such.
10349        item.update(cx, |item, cx| {
10350            SettingsStore::update_global(cx, |settings, cx| {
10351                settings.update_user_settings(cx, |settings| {
10352                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10353                })
10354            });
10355            item.is_dirty = true;
10356            for project_item in &mut item.project_items {
10357                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10358            }
10359        });
10360
10361        pane.update_in(cx, |pane, window, cx| {
10362            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10363        })
10364        .await
10365        .unwrap();
10366        assert!(!cx.has_pending_prompt());
10367        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10368
10369        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10370        workspace.update_in(cx, |workspace, window, cx| {
10371            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10372        });
10373        item.update_in(cx, |item, window, cx| {
10374            item.project_items[0].update(cx, |item, _| {
10375                item.entry_id = None;
10376            });
10377            item.is_dirty = true;
10378            window.blur();
10379        });
10380        cx.run_until_parked();
10381        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10382
10383        // Ensure autosave is prevented for deleted files also when closing the buffer.
10384        let _close_items = pane.update_in(cx, |pane, window, cx| {
10385            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10386        });
10387        cx.run_until_parked();
10388        assert!(cx.has_pending_prompt());
10389        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10390    }
10391
10392    #[gpui::test]
10393    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
10394        init_test(cx);
10395
10396        let fs = FakeFs::new(cx.executor());
10397
10398        let project = Project::test(fs, [], cx).await;
10399        let (workspace, cx) =
10400            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10401
10402        let item = cx.new(|cx| {
10403            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10404        });
10405        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10406        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
10407        let toolbar_notify_count = Rc::new(RefCell::new(0));
10408
10409        workspace.update_in(cx, |workspace, window, cx| {
10410            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10411            let toolbar_notification_count = toolbar_notify_count.clone();
10412            cx.observe_in(&toolbar, window, move |_, _, _, _| {
10413                *toolbar_notification_count.borrow_mut() += 1
10414            })
10415            .detach();
10416        });
10417
10418        pane.read_with(cx, |pane, _| {
10419            assert!(!pane.can_navigate_backward());
10420            assert!(!pane.can_navigate_forward());
10421        });
10422
10423        item.update_in(cx, |item, _, cx| {
10424            item.set_state("one".to_string(), cx);
10425        });
10426
10427        // Toolbar must be notified to re-render the navigation buttons
10428        assert_eq!(*toolbar_notify_count.borrow(), 1);
10429
10430        pane.read_with(cx, |pane, _| {
10431            assert!(pane.can_navigate_backward());
10432            assert!(!pane.can_navigate_forward());
10433        });
10434
10435        workspace
10436            .update_in(cx, |workspace, window, cx| {
10437                workspace.go_back(pane.downgrade(), window, cx)
10438            })
10439            .await
10440            .unwrap();
10441
10442        assert_eq!(*toolbar_notify_count.borrow(), 2);
10443        pane.read_with(cx, |pane, _| {
10444            assert!(!pane.can_navigate_backward());
10445            assert!(pane.can_navigate_forward());
10446        });
10447    }
10448
10449    #[gpui::test]
10450    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
10451        init_test(cx);
10452        let fs = FakeFs::new(cx.executor());
10453
10454        let project = Project::test(fs, [], cx).await;
10455        let (workspace, cx) =
10456            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10457
10458        let panel = workspace.update_in(cx, |workspace, window, cx| {
10459            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10460            workspace.add_panel(panel.clone(), window, cx);
10461
10462            workspace
10463                .right_dock()
10464                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10465
10466            panel
10467        });
10468
10469        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10470        pane.update_in(cx, |pane, window, cx| {
10471            let item = cx.new(TestItem::new);
10472            pane.add_item(Box::new(item), true, true, None, window, cx);
10473        });
10474
10475        // Transfer focus from center to panel
10476        workspace.update_in(cx, |workspace, window, cx| {
10477            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10478        });
10479
10480        workspace.update_in(cx, |workspace, window, cx| {
10481            assert!(workspace.right_dock().read(cx).is_open());
10482            assert!(!panel.is_zoomed(window, cx));
10483            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10484        });
10485
10486        // Transfer focus from panel to center
10487        workspace.update_in(cx, |workspace, window, cx| {
10488            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10489        });
10490
10491        workspace.update_in(cx, |workspace, window, cx| {
10492            assert!(workspace.right_dock().read(cx).is_open());
10493            assert!(!panel.is_zoomed(window, cx));
10494            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10495        });
10496
10497        // Close the dock
10498        workspace.update_in(cx, |workspace, window, cx| {
10499            workspace.toggle_dock(DockPosition::Right, window, cx);
10500        });
10501
10502        workspace.update_in(cx, |workspace, window, cx| {
10503            assert!(!workspace.right_dock().read(cx).is_open());
10504            assert!(!panel.is_zoomed(window, cx));
10505            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10506        });
10507
10508        // Open the dock
10509        workspace.update_in(cx, |workspace, window, cx| {
10510            workspace.toggle_dock(DockPosition::Right, window, cx);
10511        });
10512
10513        workspace.update_in(cx, |workspace, window, cx| {
10514            assert!(workspace.right_dock().read(cx).is_open());
10515            assert!(!panel.is_zoomed(window, cx));
10516            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10517        });
10518
10519        // Focus and zoom panel
10520        panel.update_in(cx, |panel, window, cx| {
10521            cx.focus_self(window);
10522            panel.set_zoomed(true, window, cx)
10523        });
10524
10525        workspace.update_in(cx, |workspace, window, cx| {
10526            assert!(workspace.right_dock().read(cx).is_open());
10527            assert!(panel.is_zoomed(window, cx));
10528            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10529        });
10530
10531        // Transfer focus to the center closes the dock
10532        workspace.update_in(cx, |workspace, window, cx| {
10533            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10534        });
10535
10536        workspace.update_in(cx, |workspace, window, cx| {
10537            assert!(!workspace.right_dock().read(cx).is_open());
10538            assert!(panel.is_zoomed(window, cx));
10539            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10540        });
10541
10542        // Transferring focus back to the panel keeps it zoomed
10543        workspace.update_in(cx, |workspace, window, cx| {
10544            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10545        });
10546
10547        workspace.update_in(cx, |workspace, window, cx| {
10548            assert!(workspace.right_dock().read(cx).is_open());
10549            assert!(panel.is_zoomed(window, cx));
10550            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10551        });
10552
10553        // Close the dock while it is zoomed
10554        workspace.update_in(cx, |workspace, window, cx| {
10555            workspace.toggle_dock(DockPosition::Right, window, cx)
10556        });
10557
10558        workspace.update_in(cx, |workspace, window, cx| {
10559            assert!(!workspace.right_dock().read(cx).is_open());
10560            assert!(panel.is_zoomed(window, cx));
10561            assert!(workspace.zoomed.is_none());
10562            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10563        });
10564
10565        // Opening the dock, when it's zoomed, retains focus
10566        workspace.update_in(cx, |workspace, window, cx| {
10567            workspace.toggle_dock(DockPosition::Right, window, cx)
10568        });
10569
10570        workspace.update_in(cx, |workspace, window, cx| {
10571            assert!(workspace.right_dock().read(cx).is_open());
10572            assert!(panel.is_zoomed(window, cx));
10573            assert!(workspace.zoomed.is_some());
10574            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10575        });
10576
10577        // Unzoom and close the panel, zoom the active pane.
10578        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
10579        workspace.update_in(cx, |workspace, window, cx| {
10580            workspace.toggle_dock(DockPosition::Right, window, cx)
10581        });
10582        pane.update_in(cx, |pane, window, cx| {
10583            pane.toggle_zoom(&Default::default(), window, cx)
10584        });
10585
10586        // Opening a dock unzooms the pane.
10587        workspace.update_in(cx, |workspace, window, cx| {
10588            workspace.toggle_dock(DockPosition::Right, window, cx)
10589        });
10590        workspace.update_in(cx, |workspace, window, cx| {
10591            let pane = pane.read(cx);
10592            assert!(!pane.is_zoomed());
10593            assert!(!pane.focus_handle(cx).is_focused(window));
10594            assert!(workspace.right_dock().read(cx).is_open());
10595            assert!(workspace.zoomed.is_none());
10596        });
10597    }
10598
10599    #[gpui::test]
10600    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
10601        init_test(cx);
10602        let fs = FakeFs::new(cx.executor());
10603
10604        let project = Project::test(fs, [], cx).await;
10605        let (workspace, cx) =
10606            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10607
10608        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
10609            workspace.active_pane().clone()
10610        });
10611
10612        // Add an item to the pane so it can be zoomed
10613        workspace.update_in(cx, |workspace, window, cx| {
10614            let item = cx.new(TestItem::new);
10615            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
10616        });
10617
10618        // Initially not zoomed
10619        workspace.update_in(cx, |workspace, _window, cx| {
10620            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
10621            assert!(
10622                workspace.zoomed.is_none(),
10623                "Workspace should track no zoomed pane"
10624            );
10625            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
10626        });
10627
10628        // Zoom In
10629        pane.update_in(cx, |pane, window, cx| {
10630            pane.zoom_in(&crate::ZoomIn, window, cx);
10631        });
10632
10633        workspace.update_in(cx, |workspace, window, cx| {
10634            assert!(
10635                pane.read(cx).is_zoomed(),
10636                "Pane should be zoomed after ZoomIn"
10637            );
10638            assert!(
10639                workspace.zoomed.is_some(),
10640                "Workspace should track the zoomed pane"
10641            );
10642            assert!(
10643                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10644                "ZoomIn should focus the pane"
10645            );
10646        });
10647
10648        // Zoom In again is a no-op
10649        pane.update_in(cx, |pane, window, cx| {
10650            pane.zoom_in(&crate::ZoomIn, window, cx);
10651        });
10652
10653        workspace.update_in(cx, |workspace, window, cx| {
10654            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
10655            assert!(
10656                workspace.zoomed.is_some(),
10657                "Workspace still tracks zoomed pane"
10658            );
10659            assert!(
10660                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10661                "Pane remains focused after repeated ZoomIn"
10662            );
10663        });
10664
10665        // Zoom Out
10666        pane.update_in(cx, |pane, window, cx| {
10667            pane.zoom_out(&crate::ZoomOut, window, cx);
10668        });
10669
10670        workspace.update_in(cx, |workspace, _window, cx| {
10671            assert!(
10672                !pane.read(cx).is_zoomed(),
10673                "Pane should unzoom after ZoomOut"
10674            );
10675            assert!(
10676                workspace.zoomed.is_none(),
10677                "Workspace clears zoom tracking after ZoomOut"
10678            );
10679        });
10680
10681        // Zoom Out again is a no-op
10682        pane.update_in(cx, |pane, window, cx| {
10683            pane.zoom_out(&crate::ZoomOut, window, cx);
10684        });
10685
10686        workspace.update_in(cx, |workspace, _window, cx| {
10687            assert!(
10688                !pane.read(cx).is_zoomed(),
10689                "Second ZoomOut keeps pane unzoomed"
10690            );
10691            assert!(
10692                workspace.zoomed.is_none(),
10693                "Workspace remains without zoomed pane"
10694            );
10695        });
10696    }
10697
10698    #[gpui::test]
10699    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
10700        init_test(cx);
10701        let fs = FakeFs::new(cx.executor());
10702
10703        let project = Project::test(fs, [], cx).await;
10704        let (workspace, cx) =
10705            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10706        workspace.update_in(cx, |workspace, window, cx| {
10707            // Open two docks
10708            let left_dock = workspace.dock_at_position(DockPosition::Left);
10709            let right_dock = workspace.dock_at_position(DockPosition::Right);
10710
10711            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10712            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10713
10714            assert!(left_dock.read(cx).is_open());
10715            assert!(right_dock.read(cx).is_open());
10716        });
10717
10718        workspace.update_in(cx, |workspace, window, cx| {
10719            // Toggle all docks - should close both
10720            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10721
10722            let left_dock = workspace.dock_at_position(DockPosition::Left);
10723            let right_dock = workspace.dock_at_position(DockPosition::Right);
10724            assert!(!left_dock.read(cx).is_open());
10725            assert!(!right_dock.read(cx).is_open());
10726        });
10727
10728        workspace.update_in(cx, |workspace, window, cx| {
10729            // Toggle again - should reopen both
10730            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10731
10732            let left_dock = workspace.dock_at_position(DockPosition::Left);
10733            let right_dock = workspace.dock_at_position(DockPosition::Right);
10734            assert!(left_dock.read(cx).is_open());
10735            assert!(right_dock.read(cx).is_open());
10736        });
10737    }
10738
10739    #[gpui::test]
10740    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10741        init_test(cx);
10742        let fs = FakeFs::new(cx.executor());
10743
10744        let project = Project::test(fs, [], cx).await;
10745        let (workspace, cx) =
10746            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10747        workspace.update_in(cx, |workspace, window, cx| {
10748            // Open two docks
10749            let left_dock = workspace.dock_at_position(DockPosition::Left);
10750            let right_dock = workspace.dock_at_position(DockPosition::Right);
10751
10752            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10753            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10754
10755            assert!(left_dock.read(cx).is_open());
10756            assert!(right_dock.read(cx).is_open());
10757        });
10758
10759        workspace.update_in(cx, |workspace, window, cx| {
10760            // Close them manually
10761            workspace.toggle_dock(DockPosition::Left, window, cx);
10762            workspace.toggle_dock(DockPosition::Right, window, cx);
10763
10764            let left_dock = workspace.dock_at_position(DockPosition::Left);
10765            let right_dock = workspace.dock_at_position(DockPosition::Right);
10766            assert!(!left_dock.read(cx).is_open());
10767            assert!(!right_dock.read(cx).is_open());
10768        });
10769
10770        workspace.update_in(cx, |workspace, window, cx| {
10771            // Toggle all docks - only last closed (right dock) should reopen
10772            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10773
10774            let left_dock = workspace.dock_at_position(DockPosition::Left);
10775            let right_dock = workspace.dock_at_position(DockPosition::Right);
10776            assert!(!left_dock.read(cx).is_open());
10777            assert!(right_dock.read(cx).is_open());
10778        });
10779    }
10780
10781    #[gpui::test]
10782    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10783        init_test(cx);
10784        let fs = FakeFs::new(cx.executor());
10785        let project = Project::test(fs, [], cx).await;
10786        let (workspace, cx) =
10787            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10788
10789        // Open two docks (left and right) with one panel each
10790        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10791            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10792            workspace.add_panel(left_panel.clone(), window, cx);
10793
10794            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10795            workspace.add_panel(right_panel.clone(), window, cx);
10796
10797            workspace.toggle_dock(DockPosition::Left, window, cx);
10798            workspace.toggle_dock(DockPosition::Right, window, cx);
10799
10800            // Verify initial state
10801            assert!(
10802                workspace.left_dock().read(cx).is_open(),
10803                "Left dock should be open"
10804            );
10805            assert_eq!(
10806                workspace
10807                    .left_dock()
10808                    .read(cx)
10809                    .visible_panel()
10810                    .unwrap()
10811                    .panel_id(),
10812                left_panel.panel_id(),
10813                "Left panel should be visible in left dock"
10814            );
10815            assert!(
10816                workspace.right_dock().read(cx).is_open(),
10817                "Right dock should be open"
10818            );
10819            assert_eq!(
10820                workspace
10821                    .right_dock()
10822                    .read(cx)
10823                    .visible_panel()
10824                    .unwrap()
10825                    .panel_id(),
10826                right_panel.panel_id(),
10827                "Right panel should be visible in right dock"
10828            );
10829            assert!(
10830                !workspace.bottom_dock().read(cx).is_open(),
10831                "Bottom dock should be closed"
10832            );
10833
10834            (left_panel, right_panel)
10835        });
10836
10837        // Focus the left panel and move it to the next position (bottom dock)
10838        workspace.update_in(cx, |workspace, window, cx| {
10839            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10840            assert!(
10841                left_panel.read(cx).focus_handle(cx).is_focused(window),
10842                "Left panel should be focused"
10843            );
10844        });
10845
10846        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10847
10848        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10849        workspace.update(cx, |workspace, cx| {
10850            assert!(
10851                !workspace.left_dock().read(cx).is_open(),
10852                "Left dock should be closed"
10853            );
10854            assert!(
10855                workspace.bottom_dock().read(cx).is_open(),
10856                "Bottom dock should now be open"
10857            );
10858            assert_eq!(
10859                left_panel.read(cx).position,
10860                DockPosition::Bottom,
10861                "Left panel should now be in the bottom dock"
10862            );
10863            assert_eq!(
10864                workspace
10865                    .bottom_dock()
10866                    .read(cx)
10867                    .visible_panel()
10868                    .unwrap()
10869                    .panel_id(),
10870                left_panel.panel_id(),
10871                "Left panel should be the visible panel in the bottom dock"
10872            );
10873        });
10874
10875        // Toggle all docks off
10876        workspace.update_in(cx, |workspace, window, cx| {
10877            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10878            assert!(
10879                !workspace.left_dock().read(cx).is_open(),
10880                "Left dock should be closed"
10881            );
10882            assert!(
10883                !workspace.right_dock().read(cx).is_open(),
10884                "Right dock should be closed"
10885            );
10886            assert!(
10887                !workspace.bottom_dock().read(cx).is_open(),
10888                "Bottom dock should be closed"
10889            );
10890        });
10891
10892        // Toggle all docks back on and verify positions are restored
10893        workspace.update_in(cx, |workspace, window, cx| {
10894            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10895            assert!(
10896                !workspace.left_dock().read(cx).is_open(),
10897                "Left dock should remain closed"
10898            );
10899            assert!(
10900                workspace.right_dock().read(cx).is_open(),
10901                "Right dock should remain open"
10902            );
10903            assert!(
10904                workspace.bottom_dock().read(cx).is_open(),
10905                "Bottom dock should remain open"
10906            );
10907            assert_eq!(
10908                left_panel.read(cx).position,
10909                DockPosition::Bottom,
10910                "Left panel should remain in the bottom dock"
10911            );
10912            assert_eq!(
10913                right_panel.read(cx).position,
10914                DockPosition::Right,
10915                "Right panel should remain in the right dock"
10916            );
10917            assert_eq!(
10918                workspace
10919                    .bottom_dock()
10920                    .read(cx)
10921                    .visible_panel()
10922                    .unwrap()
10923                    .panel_id(),
10924                left_panel.panel_id(),
10925                "Left panel should be the visible panel in the right dock"
10926            );
10927        });
10928    }
10929
10930    #[gpui::test]
10931    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10932        init_test(cx);
10933
10934        let fs = FakeFs::new(cx.executor());
10935
10936        let project = Project::test(fs, None, cx).await;
10937        let (workspace, cx) =
10938            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10939
10940        // Let's arrange the panes like this:
10941        //
10942        // +-----------------------+
10943        // |         top           |
10944        // +------+--------+-------+
10945        // | left | center | right |
10946        // +------+--------+-------+
10947        // |        bottom         |
10948        // +-----------------------+
10949
10950        let top_item = cx.new(|cx| {
10951            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10952        });
10953        let bottom_item = cx.new(|cx| {
10954            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10955        });
10956        let left_item = cx.new(|cx| {
10957            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10958        });
10959        let right_item = cx.new(|cx| {
10960            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10961        });
10962        let center_item = cx.new(|cx| {
10963            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10964        });
10965
10966        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10967            let top_pane_id = workspace.active_pane().entity_id();
10968            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10969            workspace.split_pane(
10970                workspace.active_pane().clone(),
10971                SplitDirection::Down,
10972                window,
10973                cx,
10974            );
10975            top_pane_id
10976        });
10977        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10978            let bottom_pane_id = workspace.active_pane().entity_id();
10979            workspace.add_item_to_active_pane(
10980                Box::new(bottom_item.clone()),
10981                None,
10982                false,
10983                window,
10984                cx,
10985            );
10986            workspace.split_pane(
10987                workspace.active_pane().clone(),
10988                SplitDirection::Up,
10989                window,
10990                cx,
10991            );
10992            bottom_pane_id
10993        });
10994        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10995            let left_pane_id = workspace.active_pane().entity_id();
10996            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10997            workspace.split_pane(
10998                workspace.active_pane().clone(),
10999                SplitDirection::Right,
11000                window,
11001                cx,
11002            );
11003            left_pane_id
11004        });
11005        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11006            let right_pane_id = workspace.active_pane().entity_id();
11007            workspace.add_item_to_active_pane(
11008                Box::new(right_item.clone()),
11009                None,
11010                false,
11011                window,
11012                cx,
11013            );
11014            workspace.split_pane(
11015                workspace.active_pane().clone(),
11016                SplitDirection::Left,
11017                window,
11018                cx,
11019            );
11020            right_pane_id
11021        });
11022        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11023            let center_pane_id = workspace.active_pane().entity_id();
11024            workspace.add_item_to_active_pane(
11025                Box::new(center_item.clone()),
11026                None,
11027                false,
11028                window,
11029                cx,
11030            );
11031            center_pane_id
11032        });
11033        cx.executor().run_until_parked();
11034
11035        workspace.update_in(cx, |workspace, window, cx| {
11036            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
11037
11038            // Join into next from center pane into right
11039            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11040        });
11041
11042        workspace.update_in(cx, |workspace, window, cx| {
11043            let active_pane = workspace.active_pane();
11044            assert_eq!(right_pane_id, active_pane.entity_id());
11045            assert_eq!(2, active_pane.read(cx).items_len());
11046            let item_ids_in_pane =
11047                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11048            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11049            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11050
11051            // Join into next from right pane into bottom
11052            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11053        });
11054
11055        workspace.update_in(cx, |workspace, window, cx| {
11056            let active_pane = workspace.active_pane();
11057            assert_eq!(bottom_pane_id, active_pane.entity_id());
11058            assert_eq!(3, active_pane.read(cx).items_len());
11059            let item_ids_in_pane =
11060                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11061            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11062            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11063            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11064
11065            // Join into next from bottom pane into left
11066            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11067        });
11068
11069        workspace.update_in(cx, |workspace, window, cx| {
11070            let active_pane = workspace.active_pane();
11071            assert_eq!(left_pane_id, active_pane.entity_id());
11072            assert_eq!(4, active_pane.read(cx).items_len());
11073            let item_ids_in_pane =
11074                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11075            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11076            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11077            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11078            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11079
11080            // Join into next from left pane into top
11081            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11082        });
11083
11084        workspace.update_in(cx, |workspace, window, cx| {
11085            let active_pane = workspace.active_pane();
11086            assert_eq!(top_pane_id, active_pane.entity_id());
11087            assert_eq!(5, active_pane.read(cx).items_len());
11088            let item_ids_in_pane =
11089                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11090            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11091            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11092            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11093            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11094            assert!(item_ids_in_pane.contains(&top_item.item_id()));
11095
11096            // Single pane left: no-op
11097            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
11098        });
11099
11100        workspace.update(cx, |workspace, _cx| {
11101            let active_pane = workspace.active_pane();
11102            assert_eq!(top_pane_id, active_pane.entity_id());
11103        });
11104    }
11105
11106    fn add_an_item_to_active_pane(
11107        cx: &mut VisualTestContext,
11108        workspace: &Entity<Workspace>,
11109        item_id: u64,
11110    ) -> Entity<TestItem> {
11111        let item = cx.new(|cx| {
11112            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
11113                item_id,
11114                "item{item_id}.txt",
11115                cx,
11116            )])
11117        });
11118        workspace.update_in(cx, |workspace, window, cx| {
11119            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
11120        });
11121        item
11122    }
11123
11124    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
11125        workspace.update_in(cx, |workspace, window, cx| {
11126            workspace.split_pane(
11127                workspace.active_pane().clone(),
11128                SplitDirection::Right,
11129                window,
11130                cx,
11131            )
11132        })
11133    }
11134
11135    #[gpui::test]
11136    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
11137        init_test(cx);
11138        let fs = FakeFs::new(cx.executor());
11139        let project = Project::test(fs, None, cx).await;
11140        let (workspace, cx) =
11141            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11142
11143        add_an_item_to_active_pane(cx, &workspace, 1);
11144        split_pane(cx, &workspace);
11145        add_an_item_to_active_pane(cx, &workspace, 2);
11146        split_pane(cx, &workspace); // empty pane
11147        split_pane(cx, &workspace);
11148        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
11149
11150        cx.executor().run_until_parked();
11151
11152        workspace.update(cx, |workspace, cx| {
11153            let num_panes = workspace.panes().len();
11154            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11155            let active_item = workspace
11156                .active_pane()
11157                .read(cx)
11158                .active_item()
11159                .expect("item is in focus");
11160
11161            assert_eq!(num_panes, 4);
11162            assert_eq!(num_items_in_current_pane, 1);
11163            assert_eq!(active_item.item_id(), last_item.item_id());
11164        });
11165
11166        workspace.update_in(cx, |workspace, window, cx| {
11167            workspace.join_all_panes(window, cx);
11168        });
11169
11170        workspace.update(cx, |workspace, cx| {
11171            let num_panes = workspace.panes().len();
11172            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11173            let active_item = workspace
11174                .active_pane()
11175                .read(cx)
11176                .active_item()
11177                .expect("item is in focus");
11178
11179            assert_eq!(num_panes, 1);
11180            assert_eq!(num_items_in_current_pane, 3);
11181            assert_eq!(active_item.item_id(), last_item.item_id());
11182        });
11183    }
11184    struct TestModal(FocusHandle);
11185
11186    impl TestModal {
11187        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
11188            Self(cx.focus_handle())
11189        }
11190    }
11191
11192    impl EventEmitter<DismissEvent> for TestModal {}
11193
11194    impl Focusable for TestModal {
11195        fn focus_handle(&self, _cx: &App) -> FocusHandle {
11196            self.0.clone()
11197        }
11198    }
11199
11200    impl ModalView for TestModal {}
11201
11202    impl Render for TestModal {
11203        fn render(
11204            &mut self,
11205            _window: &mut Window,
11206            _cx: &mut Context<TestModal>,
11207        ) -> impl IntoElement {
11208            div().track_focus(&self.0)
11209        }
11210    }
11211
11212    #[gpui::test]
11213    async fn test_panels(cx: &mut gpui::TestAppContext) {
11214        init_test(cx);
11215        let fs = FakeFs::new(cx.executor());
11216
11217        let project = Project::test(fs, [], cx).await;
11218        let (workspace, cx) =
11219            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11220
11221        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
11222            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11223            workspace.add_panel(panel_1.clone(), window, cx);
11224            workspace.toggle_dock(DockPosition::Left, window, cx);
11225            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11226            workspace.add_panel(panel_2.clone(), window, cx);
11227            workspace.toggle_dock(DockPosition::Right, window, cx);
11228
11229            let left_dock = workspace.left_dock();
11230            assert_eq!(
11231                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11232                panel_1.panel_id()
11233            );
11234            assert_eq!(
11235                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11236                panel_1.size(window, cx)
11237            );
11238
11239            left_dock.update(cx, |left_dock, cx| {
11240                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
11241            });
11242            assert_eq!(
11243                workspace
11244                    .right_dock()
11245                    .read(cx)
11246                    .visible_panel()
11247                    .unwrap()
11248                    .panel_id(),
11249                panel_2.panel_id(),
11250            );
11251
11252            (panel_1, panel_2)
11253        });
11254
11255        // Move panel_1 to the right
11256        panel_1.update_in(cx, |panel_1, window, cx| {
11257            panel_1.set_position(DockPosition::Right, window, cx)
11258        });
11259
11260        workspace.update_in(cx, |workspace, window, cx| {
11261            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
11262            // Since it was the only panel on the left, the left dock should now be closed.
11263            assert!(!workspace.left_dock().read(cx).is_open());
11264            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
11265            let right_dock = workspace.right_dock();
11266            assert_eq!(
11267                right_dock.read(cx).visible_panel().unwrap().panel_id(),
11268                panel_1.panel_id()
11269            );
11270            assert_eq!(
11271                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
11272                px(1337.)
11273            );
11274
11275            // Now we move panel_2 to the left
11276            panel_2.set_position(DockPosition::Left, window, cx);
11277        });
11278
11279        workspace.update(cx, |workspace, cx| {
11280            // Since panel_2 was not visible on the right, we don't open the left dock.
11281            assert!(!workspace.left_dock().read(cx).is_open());
11282            // And the right dock is unaffected in its displaying of panel_1
11283            assert!(workspace.right_dock().read(cx).is_open());
11284            assert_eq!(
11285                workspace
11286                    .right_dock()
11287                    .read(cx)
11288                    .visible_panel()
11289                    .unwrap()
11290                    .panel_id(),
11291                panel_1.panel_id(),
11292            );
11293        });
11294
11295        // Move panel_1 back to the left
11296        panel_1.update_in(cx, |panel_1, window, cx| {
11297            panel_1.set_position(DockPosition::Left, window, cx)
11298        });
11299
11300        workspace.update_in(cx, |workspace, window, cx| {
11301            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
11302            let left_dock = workspace.left_dock();
11303            assert!(left_dock.read(cx).is_open());
11304            assert_eq!(
11305                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11306                panel_1.panel_id()
11307            );
11308            assert_eq!(
11309                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11310                px(1337.)
11311            );
11312            // And the right dock should be closed as it no longer has any panels.
11313            assert!(!workspace.right_dock().read(cx).is_open());
11314
11315            // Now we move panel_1 to the bottom
11316            panel_1.set_position(DockPosition::Bottom, window, cx);
11317        });
11318
11319        workspace.update_in(cx, |workspace, window, cx| {
11320            // Since panel_1 was visible on the left, we close the left dock.
11321            assert!(!workspace.left_dock().read(cx).is_open());
11322            // The bottom dock is sized based on the panel's default size,
11323            // since the panel orientation changed from vertical to horizontal.
11324            let bottom_dock = workspace.bottom_dock();
11325            assert_eq!(
11326                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
11327                panel_1.size(window, cx),
11328            );
11329            // Close bottom dock and move panel_1 back to the left.
11330            bottom_dock.update(cx, |bottom_dock, cx| {
11331                bottom_dock.set_open(false, window, cx)
11332            });
11333            panel_1.set_position(DockPosition::Left, window, cx);
11334        });
11335
11336        // Emit activated event on panel 1
11337        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
11338
11339        // Now the left dock is open and panel_1 is active and focused.
11340        workspace.update_in(cx, |workspace, window, cx| {
11341            let left_dock = workspace.left_dock();
11342            assert!(left_dock.read(cx).is_open());
11343            assert_eq!(
11344                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11345                panel_1.panel_id(),
11346            );
11347            assert!(panel_1.focus_handle(cx).is_focused(window));
11348        });
11349
11350        // Emit closed event on panel 2, which is not active
11351        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11352
11353        // Wo don't close the left dock, because panel_2 wasn't the active panel
11354        workspace.update(cx, |workspace, cx| {
11355            let left_dock = workspace.left_dock();
11356            assert!(left_dock.read(cx).is_open());
11357            assert_eq!(
11358                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11359                panel_1.panel_id(),
11360            );
11361        });
11362
11363        // Emitting a ZoomIn event shows the panel as zoomed.
11364        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
11365        workspace.read_with(cx, |workspace, _| {
11366            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11367            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
11368        });
11369
11370        // Move panel to another dock while it is zoomed
11371        panel_1.update_in(cx, |panel, window, cx| {
11372            panel.set_position(DockPosition::Right, window, cx)
11373        });
11374        workspace.read_with(cx, |workspace, _| {
11375            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11376
11377            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11378        });
11379
11380        // This is a helper for getting a:
11381        // - valid focus on an element,
11382        // - that isn't a part of the panes and panels system of the Workspace,
11383        // - and doesn't trigger the 'on_focus_lost' API.
11384        let focus_other_view = {
11385            let workspace = workspace.clone();
11386            move |cx: &mut VisualTestContext| {
11387                workspace.update_in(cx, |workspace, window, cx| {
11388                    if workspace.active_modal::<TestModal>(cx).is_some() {
11389                        workspace.toggle_modal(window, cx, TestModal::new);
11390                        workspace.toggle_modal(window, cx, TestModal::new);
11391                    } else {
11392                        workspace.toggle_modal(window, cx, TestModal::new);
11393                    }
11394                })
11395            }
11396        };
11397
11398        // If focus is transferred to another view that's not a panel or another pane, we still show
11399        // the panel as zoomed.
11400        focus_other_view(cx);
11401        workspace.read_with(cx, |workspace, _| {
11402            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11403            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11404        });
11405
11406        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
11407        workspace.update_in(cx, |_workspace, window, cx| {
11408            cx.focus_self(window);
11409        });
11410        workspace.read_with(cx, |workspace, _| {
11411            assert_eq!(workspace.zoomed, None);
11412            assert_eq!(workspace.zoomed_position, None);
11413        });
11414
11415        // If focus is transferred again to another view that's not a panel or a pane, we won't
11416        // show the panel as zoomed because it wasn't zoomed before.
11417        focus_other_view(cx);
11418        workspace.read_with(cx, |workspace, _| {
11419            assert_eq!(workspace.zoomed, None);
11420            assert_eq!(workspace.zoomed_position, None);
11421        });
11422
11423        // When the panel is activated, it is zoomed again.
11424        cx.dispatch_action(ToggleRightDock);
11425        workspace.read_with(cx, |workspace, _| {
11426            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11427            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11428        });
11429
11430        // Emitting a ZoomOut event unzooms the panel.
11431        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
11432        workspace.read_with(cx, |workspace, _| {
11433            assert_eq!(workspace.zoomed, None);
11434            assert_eq!(workspace.zoomed_position, None);
11435        });
11436
11437        // Emit closed event on panel 1, which is active
11438        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11439
11440        // Now the left dock is closed, because panel_1 was the active panel
11441        workspace.update(cx, |workspace, cx| {
11442            let right_dock = workspace.right_dock();
11443            assert!(!right_dock.read(cx).is_open());
11444        });
11445    }
11446
11447    #[gpui::test]
11448    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
11449        init_test(cx);
11450
11451        let fs = FakeFs::new(cx.background_executor.clone());
11452        let project = Project::test(fs, [], cx).await;
11453        let (workspace, cx) =
11454            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11455        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11456
11457        let dirty_regular_buffer = cx.new(|cx| {
11458            TestItem::new(cx)
11459                .with_dirty(true)
11460                .with_label("1.txt")
11461                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11462        });
11463        let dirty_regular_buffer_2 = cx.new(|cx| {
11464            TestItem::new(cx)
11465                .with_dirty(true)
11466                .with_label("2.txt")
11467                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11468        });
11469        let dirty_multi_buffer_with_both = cx.new(|cx| {
11470            TestItem::new(cx)
11471                .with_dirty(true)
11472                .with_buffer_kind(ItemBufferKind::Multibuffer)
11473                .with_label("Fake Project Search")
11474                .with_project_items(&[
11475                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11476                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11477                ])
11478        });
11479        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11480        workspace.update_in(cx, |workspace, window, cx| {
11481            workspace.add_item(
11482                pane.clone(),
11483                Box::new(dirty_regular_buffer.clone()),
11484                None,
11485                false,
11486                false,
11487                window,
11488                cx,
11489            );
11490            workspace.add_item(
11491                pane.clone(),
11492                Box::new(dirty_regular_buffer_2.clone()),
11493                None,
11494                false,
11495                false,
11496                window,
11497                cx,
11498            );
11499            workspace.add_item(
11500                pane.clone(),
11501                Box::new(dirty_multi_buffer_with_both.clone()),
11502                None,
11503                false,
11504                false,
11505                window,
11506                cx,
11507            );
11508        });
11509
11510        pane.update_in(cx, |pane, window, cx| {
11511            pane.activate_item(2, true, true, window, cx);
11512            assert_eq!(
11513                pane.active_item().unwrap().item_id(),
11514                multi_buffer_with_both_files_id,
11515                "Should select the multi buffer in the pane"
11516            );
11517        });
11518        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11519            pane.close_other_items(
11520                &CloseOtherItems {
11521                    save_intent: Some(SaveIntent::Save),
11522                    close_pinned: true,
11523                },
11524                None,
11525                window,
11526                cx,
11527            )
11528        });
11529        cx.background_executor.run_until_parked();
11530        assert!(!cx.has_pending_prompt());
11531        close_all_but_multi_buffer_task
11532            .await
11533            .expect("Closing all buffers but the multi buffer failed");
11534        pane.update(cx, |pane, cx| {
11535            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
11536            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
11537            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
11538            assert_eq!(pane.items_len(), 1);
11539            assert_eq!(
11540                pane.active_item().unwrap().item_id(),
11541                multi_buffer_with_both_files_id,
11542                "Should have only the multi buffer left in the pane"
11543            );
11544            assert!(
11545                dirty_multi_buffer_with_both.read(cx).is_dirty,
11546                "The multi buffer containing the unsaved buffer should still be dirty"
11547            );
11548        });
11549
11550        dirty_regular_buffer.update(cx, |buffer, cx| {
11551            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
11552        });
11553
11554        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11555            pane.close_active_item(
11556                &CloseActiveItem {
11557                    save_intent: Some(SaveIntent::Close),
11558                    close_pinned: false,
11559                },
11560                window,
11561                cx,
11562            )
11563        });
11564        cx.background_executor.run_until_parked();
11565        assert!(
11566            cx.has_pending_prompt(),
11567            "Dirty multi buffer should prompt a save dialog"
11568        );
11569        cx.simulate_prompt_answer("Save");
11570        cx.background_executor.run_until_parked();
11571        close_multi_buffer_task
11572            .await
11573            .expect("Closing the multi buffer failed");
11574        pane.update(cx, |pane, cx| {
11575            assert_eq!(
11576                dirty_multi_buffer_with_both.read(cx).save_count,
11577                1,
11578                "Multi buffer item should get be saved"
11579            );
11580            // Test impl does not save inner items, so we do not assert them
11581            assert_eq!(
11582                pane.items_len(),
11583                0,
11584                "No more items should be left in the pane"
11585            );
11586            assert!(pane.active_item().is_none());
11587        });
11588    }
11589
11590    #[gpui::test]
11591    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
11592        cx: &mut TestAppContext,
11593    ) {
11594        init_test(cx);
11595
11596        let fs = FakeFs::new(cx.background_executor.clone());
11597        let project = Project::test(fs, [], cx).await;
11598        let (workspace, cx) =
11599            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11600        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11601
11602        let dirty_regular_buffer = cx.new(|cx| {
11603            TestItem::new(cx)
11604                .with_dirty(true)
11605                .with_label("1.txt")
11606                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11607        });
11608        let dirty_regular_buffer_2 = cx.new(|cx| {
11609            TestItem::new(cx)
11610                .with_dirty(true)
11611                .with_label("2.txt")
11612                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11613        });
11614        let clear_regular_buffer = cx.new(|cx| {
11615            TestItem::new(cx)
11616                .with_label("3.txt")
11617                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11618        });
11619
11620        let dirty_multi_buffer_with_both = cx.new(|cx| {
11621            TestItem::new(cx)
11622                .with_dirty(true)
11623                .with_buffer_kind(ItemBufferKind::Multibuffer)
11624                .with_label("Fake Project Search")
11625                .with_project_items(&[
11626                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11627                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11628                    clear_regular_buffer.read(cx).project_items[0].clone(),
11629                ])
11630        });
11631        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11632        workspace.update_in(cx, |workspace, window, cx| {
11633            workspace.add_item(
11634                pane.clone(),
11635                Box::new(dirty_regular_buffer.clone()),
11636                None,
11637                false,
11638                false,
11639                window,
11640                cx,
11641            );
11642            workspace.add_item(
11643                pane.clone(),
11644                Box::new(dirty_multi_buffer_with_both.clone()),
11645                None,
11646                false,
11647                false,
11648                window,
11649                cx,
11650            );
11651        });
11652
11653        pane.update_in(cx, |pane, window, cx| {
11654            pane.activate_item(1, true, true, window, cx);
11655            assert_eq!(
11656                pane.active_item().unwrap().item_id(),
11657                multi_buffer_with_both_files_id,
11658                "Should select the multi buffer in the pane"
11659            );
11660        });
11661        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11662            pane.close_active_item(
11663                &CloseActiveItem {
11664                    save_intent: None,
11665                    close_pinned: false,
11666                },
11667                window,
11668                cx,
11669            )
11670        });
11671        cx.background_executor.run_until_parked();
11672        assert!(
11673            cx.has_pending_prompt(),
11674            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
11675        );
11676    }
11677
11678    /// Tests that when `close_on_file_delete` is enabled, files are automatically
11679    /// closed when they are deleted from disk.
11680    #[gpui::test]
11681    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
11682        init_test(cx);
11683
11684        // Enable the close_on_disk_deletion setting
11685        cx.update_global(|store: &mut SettingsStore, cx| {
11686            store.update_user_settings(cx, |settings| {
11687                settings.workspace.close_on_file_delete = Some(true);
11688            });
11689        });
11690
11691        let fs = FakeFs::new(cx.background_executor.clone());
11692        let project = Project::test(fs, [], cx).await;
11693        let (workspace, cx) =
11694            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11695        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11696
11697        // Create a test item that simulates a file
11698        let item = cx.new(|cx| {
11699            TestItem::new(cx)
11700                .with_label("test.txt")
11701                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11702        });
11703
11704        // Add item to workspace
11705        workspace.update_in(cx, |workspace, window, cx| {
11706            workspace.add_item(
11707                pane.clone(),
11708                Box::new(item.clone()),
11709                None,
11710                false,
11711                false,
11712                window,
11713                cx,
11714            );
11715        });
11716
11717        // Verify the item is in the pane
11718        pane.read_with(cx, |pane, _| {
11719            assert_eq!(pane.items().count(), 1);
11720        });
11721
11722        // Simulate file deletion by setting the item's deleted state
11723        item.update(cx, |item, _| {
11724            item.set_has_deleted_file(true);
11725        });
11726
11727        // Emit UpdateTab event to trigger the close behavior
11728        cx.run_until_parked();
11729        item.update(cx, |_, cx| {
11730            cx.emit(ItemEvent::UpdateTab);
11731        });
11732
11733        // Allow the close operation to complete
11734        cx.run_until_parked();
11735
11736        // Verify the item was automatically closed
11737        pane.read_with(cx, |pane, _| {
11738            assert_eq!(
11739                pane.items().count(),
11740                0,
11741                "Item should be automatically closed when file is deleted"
11742            );
11743        });
11744    }
11745
11746    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11747    /// open with a strikethrough when they are deleted from disk.
11748    #[gpui::test]
11749    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11750        init_test(cx);
11751
11752        // Ensure close_on_disk_deletion is disabled (default)
11753        cx.update_global(|store: &mut SettingsStore, cx| {
11754            store.update_user_settings(cx, |settings| {
11755                settings.workspace.close_on_file_delete = Some(false);
11756            });
11757        });
11758
11759        let fs = FakeFs::new(cx.background_executor.clone());
11760        let project = Project::test(fs, [], cx).await;
11761        let (workspace, cx) =
11762            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11763        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11764
11765        // Create a test item that simulates a file
11766        let item = cx.new(|cx| {
11767            TestItem::new(cx)
11768                .with_label("test.txt")
11769                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11770        });
11771
11772        // Add item to workspace
11773        workspace.update_in(cx, |workspace, window, cx| {
11774            workspace.add_item(
11775                pane.clone(),
11776                Box::new(item.clone()),
11777                None,
11778                false,
11779                false,
11780                window,
11781                cx,
11782            );
11783        });
11784
11785        // Verify the item is in the pane
11786        pane.read_with(cx, |pane, _| {
11787            assert_eq!(pane.items().count(), 1);
11788        });
11789
11790        // Simulate file deletion
11791        item.update(cx, |item, _| {
11792            item.set_has_deleted_file(true);
11793        });
11794
11795        // Emit UpdateTab event
11796        cx.run_until_parked();
11797        item.update(cx, |_, cx| {
11798            cx.emit(ItemEvent::UpdateTab);
11799        });
11800
11801        // Allow any potential close operation to complete
11802        cx.run_until_parked();
11803
11804        // Verify the item remains open (with strikethrough)
11805        pane.read_with(cx, |pane, _| {
11806            assert_eq!(
11807                pane.items().count(),
11808                1,
11809                "Item should remain open when close_on_disk_deletion is disabled"
11810            );
11811        });
11812
11813        // Verify the item shows as deleted
11814        item.read_with(cx, |item, _| {
11815            assert!(
11816                item.has_deleted_file,
11817                "Item should be marked as having deleted file"
11818            );
11819        });
11820    }
11821
11822    /// Tests that dirty files are not automatically closed when deleted from disk,
11823    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11824    /// unsaved changes without being prompted.
11825    #[gpui::test]
11826    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11827        init_test(cx);
11828
11829        // Enable the close_on_file_delete setting
11830        cx.update_global(|store: &mut SettingsStore, cx| {
11831            store.update_user_settings(cx, |settings| {
11832                settings.workspace.close_on_file_delete = Some(true);
11833            });
11834        });
11835
11836        let fs = FakeFs::new(cx.background_executor.clone());
11837        let project = Project::test(fs, [], cx).await;
11838        let (workspace, cx) =
11839            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11840        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11841
11842        // Create a dirty test item
11843        let item = cx.new(|cx| {
11844            TestItem::new(cx)
11845                .with_dirty(true)
11846                .with_label("test.txt")
11847                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11848        });
11849
11850        // Add item to workspace
11851        workspace.update_in(cx, |workspace, window, cx| {
11852            workspace.add_item(
11853                pane.clone(),
11854                Box::new(item.clone()),
11855                None,
11856                false,
11857                false,
11858                window,
11859                cx,
11860            );
11861        });
11862
11863        // Simulate file deletion
11864        item.update(cx, |item, _| {
11865            item.set_has_deleted_file(true);
11866        });
11867
11868        // Emit UpdateTab event to trigger the close behavior
11869        cx.run_until_parked();
11870        item.update(cx, |_, cx| {
11871            cx.emit(ItemEvent::UpdateTab);
11872        });
11873
11874        // Allow any potential close operation to complete
11875        cx.run_until_parked();
11876
11877        // Verify the item remains open (dirty files are not auto-closed)
11878        pane.read_with(cx, |pane, _| {
11879            assert_eq!(
11880                pane.items().count(),
11881                1,
11882                "Dirty items should not be automatically closed even when file is deleted"
11883            );
11884        });
11885
11886        // Verify the item is marked as deleted and still dirty
11887        item.read_with(cx, |item, _| {
11888            assert!(
11889                item.has_deleted_file,
11890                "Item should be marked as having deleted file"
11891            );
11892            assert!(item.is_dirty, "Item should still be dirty");
11893        });
11894    }
11895
11896    /// Tests that navigation history is cleaned up when files are auto-closed
11897    /// due to deletion from disk.
11898    #[gpui::test]
11899    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11900        init_test(cx);
11901
11902        // Enable the close_on_file_delete setting
11903        cx.update_global(|store: &mut SettingsStore, cx| {
11904            store.update_user_settings(cx, |settings| {
11905                settings.workspace.close_on_file_delete = Some(true);
11906            });
11907        });
11908
11909        let fs = FakeFs::new(cx.background_executor.clone());
11910        let project = Project::test(fs, [], cx).await;
11911        let (workspace, cx) =
11912            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11913        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11914
11915        // Create test items
11916        let item1 = cx.new(|cx| {
11917            TestItem::new(cx)
11918                .with_label("test1.txt")
11919                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11920        });
11921        let item1_id = item1.item_id();
11922
11923        let item2 = cx.new(|cx| {
11924            TestItem::new(cx)
11925                .with_label("test2.txt")
11926                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11927        });
11928
11929        // Add items to workspace
11930        workspace.update_in(cx, |workspace, window, cx| {
11931            workspace.add_item(
11932                pane.clone(),
11933                Box::new(item1.clone()),
11934                None,
11935                false,
11936                false,
11937                window,
11938                cx,
11939            );
11940            workspace.add_item(
11941                pane.clone(),
11942                Box::new(item2.clone()),
11943                None,
11944                false,
11945                false,
11946                window,
11947                cx,
11948            );
11949        });
11950
11951        // Activate item1 to ensure it gets navigation entries
11952        pane.update_in(cx, |pane, window, cx| {
11953            pane.activate_item(0, true, true, window, cx);
11954        });
11955
11956        // Switch to item2 and back to create navigation history
11957        pane.update_in(cx, |pane, window, cx| {
11958            pane.activate_item(1, true, true, window, cx);
11959        });
11960        cx.run_until_parked();
11961
11962        pane.update_in(cx, |pane, window, cx| {
11963            pane.activate_item(0, true, true, window, cx);
11964        });
11965        cx.run_until_parked();
11966
11967        // Simulate file deletion for item1
11968        item1.update(cx, |item, _| {
11969            item.set_has_deleted_file(true);
11970        });
11971
11972        // Emit UpdateTab event to trigger the close behavior
11973        item1.update(cx, |_, cx| {
11974            cx.emit(ItemEvent::UpdateTab);
11975        });
11976        cx.run_until_parked();
11977
11978        // Verify item1 was closed
11979        pane.read_with(cx, |pane, _| {
11980            assert_eq!(
11981                pane.items().count(),
11982                1,
11983                "Should have 1 item remaining after auto-close"
11984            );
11985        });
11986
11987        // Check navigation history after close
11988        let has_item = pane.read_with(cx, |pane, cx| {
11989            let mut has_item = false;
11990            pane.nav_history().for_each_entry(cx, |entry, _| {
11991                if entry.item.id() == item1_id {
11992                    has_item = true;
11993                }
11994            });
11995            has_item
11996        });
11997
11998        assert!(
11999            !has_item,
12000            "Navigation history should not contain closed item entries"
12001        );
12002    }
12003
12004    #[gpui::test]
12005    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
12006        cx: &mut TestAppContext,
12007    ) {
12008        init_test(cx);
12009
12010        let fs = FakeFs::new(cx.background_executor.clone());
12011        let project = Project::test(fs, [], cx).await;
12012        let (workspace, cx) =
12013            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12014        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12015
12016        let dirty_regular_buffer = cx.new(|cx| {
12017            TestItem::new(cx)
12018                .with_dirty(true)
12019                .with_label("1.txt")
12020                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12021        });
12022        let dirty_regular_buffer_2 = cx.new(|cx| {
12023            TestItem::new(cx)
12024                .with_dirty(true)
12025                .with_label("2.txt")
12026                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12027        });
12028        let clear_regular_buffer = cx.new(|cx| {
12029            TestItem::new(cx)
12030                .with_label("3.txt")
12031                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
12032        });
12033
12034        let dirty_multi_buffer = cx.new(|cx| {
12035            TestItem::new(cx)
12036                .with_dirty(true)
12037                .with_buffer_kind(ItemBufferKind::Multibuffer)
12038                .with_label("Fake Project Search")
12039                .with_project_items(&[
12040                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12041                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12042                    clear_regular_buffer.read(cx).project_items[0].clone(),
12043                ])
12044        });
12045        workspace.update_in(cx, |workspace, window, cx| {
12046            workspace.add_item(
12047                pane.clone(),
12048                Box::new(dirty_regular_buffer.clone()),
12049                None,
12050                false,
12051                false,
12052                window,
12053                cx,
12054            );
12055            workspace.add_item(
12056                pane.clone(),
12057                Box::new(dirty_regular_buffer_2.clone()),
12058                None,
12059                false,
12060                false,
12061                window,
12062                cx,
12063            );
12064            workspace.add_item(
12065                pane.clone(),
12066                Box::new(dirty_multi_buffer.clone()),
12067                None,
12068                false,
12069                false,
12070                window,
12071                cx,
12072            );
12073        });
12074
12075        pane.update_in(cx, |pane, window, cx| {
12076            pane.activate_item(2, true, true, window, cx);
12077            assert_eq!(
12078                pane.active_item().unwrap().item_id(),
12079                dirty_multi_buffer.item_id(),
12080                "Should select the multi buffer in the pane"
12081            );
12082        });
12083        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12084            pane.close_active_item(
12085                &CloseActiveItem {
12086                    save_intent: None,
12087                    close_pinned: false,
12088                },
12089                window,
12090                cx,
12091            )
12092        });
12093        cx.background_executor.run_until_parked();
12094        assert!(
12095            !cx.has_pending_prompt(),
12096            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
12097        );
12098        close_multi_buffer_task
12099            .await
12100            .expect("Closing multi buffer failed");
12101        pane.update(cx, |pane, cx| {
12102            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
12103            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
12104            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
12105            assert_eq!(
12106                pane.items()
12107                    .map(|item| item.item_id())
12108                    .sorted()
12109                    .collect::<Vec<_>>(),
12110                vec![
12111                    dirty_regular_buffer.item_id(),
12112                    dirty_regular_buffer_2.item_id(),
12113                ],
12114                "Should have no multi buffer left in the pane"
12115            );
12116            assert!(dirty_regular_buffer.read(cx).is_dirty);
12117            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
12118        });
12119    }
12120
12121    #[gpui::test]
12122    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
12123        init_test(cx);
12124        let fs = FakeFs::new(cx.executor());
12125        let project = Project::test(fs, [], cx).await;
12126        let (workspace, cx) =
12127            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12128
12129        // Add a new panel to the right dock, opening the dock and setting the
12130        // focus to the new panel.
12131        let panel = workspace.update_in(cx, |workspace, window, cx| {
12132            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12133            workspace.add_panel(panel.clone(), window, cx);
12134
12135            workspace
12136                .right_dock()
12137                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12138
12139            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12140
12141            panel
12142        });
12143
12144        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12145        // panel to the next valid position which, in this case, is the left
12146        // dock.
12147        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12148        workspace.update(cx, |workspace, cx| {
12149            assert!(workspace.left_dock().read(cx).is_open());
12150            assert_eq!(panel.read(cx).position, DockPosition::Left);
12151        });
12152
12153        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12154        // panel to the next valid position which, in this case, is the bottom
12155        // dock.
12156        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12157        workspace.update(cx, |workspace, cx| {
12158            assert!(workspace.bottom_dock().read(cx).is_open());
12159            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
12160        });
12161
12162        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
12163        // around moving the panel to its initial position, the right dock.
12164        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12165        workspace.update(cx, |workspace, cx| {
12166            assert!(workspace.right_dock().read(cx).is_open());
12167            assert_eq!(panel.read(cx).position, DockPosition::Right);
12168        });
12169
12170        // Remove focus from the panel, ensuring that, if the panel is not
12171        // focused, the `MoveFocusedPanelToNextPosition` action does not update
12172        // the panel's position, so the panel is still in the right dock.
12173        workspace.update_in(cx, |workspace, window, cx| {
12174            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12175        });
12176
12177        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12178        workspace.update(cx, |workspace, cx| {
12179            assert!(workspace.right_dock().read(cx).is_open());
12180            assert_eq!(panel.read(cx).position, DockPosition::Right);
12181        });
12182    }
12183
12184    #[gpui::test]
12185    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
12186        init_test(cx);
12187
12188        let fs = FakeFs::new(cx.executor());
12189        let project = Project::test(fs, [], cx).await;
12190        let (workspace, cx) =
12191            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12192
12193        let item_1 = cx.new(|cx| {
12194            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12195        });
12196        workspace.update_in(cx, |workspace, window, cx| {
12197            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12198            workspace.move_item_to_pane_in_direction(
12199                &MoveItemToPaneInDirection {
12200                    direction: SplitDirection::Right,
12201                    focus: true,
12202                    clone: false,
12203                },
12204                window,
12205                cx,
12206            );
12207            workspace.move_item_to_pane_at_index(
12208                &MoveItemToPane {
12209                    destination: 3,
12210                    focus: true,
12211                    clone: false,
12212                },
12213                window,
12214                cx,
12215            );
12216
12217            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
12218            assert_eq!(
12219                pane_items_paths(&workspace.active_pane, cx),
12220                vec!["first.txt".to_string()],
12221                "Single item was not moved anywhere"
12222            );
12223        });
12224
12225        let item_2 = cx.new(|cx| {
12226            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
12227        });
12228        workspace.update_in(cx, |workspace, window, cx| {
12229            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
12230            assert_eq!(
12231                pane_items_paths(&workspace.panes[0], cx),
12232                vec!["first.txt".to_string(), "second.txt".to_string()],
12233            );
12234            workspace.move_item_to_pane_in_direction(
12235                &MoveItemToPaneInDirection {
12236                    direction: SplitDirection::Right,
12237                    focus: true,
12238                    clone: false,
12239                },
12240                window,
12241                cx,
12242            );
12243
12244            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
12245            assert_eq!(
12246                pane_items_paths(&workspace.panes[0], cx),
12247                vec!["first.txt".to_string()],
12248                "After moving, one item should be left in the original pane"
12249            );
12250            assert_eq!(
12251                pane_items_paths(&workspace.panes[1], cx),
12252                vec!["second.txt".to_string()],
12253                "New item should have been moved to the new pane"
12254            );
12255        });
12256
12257        let item_3 = cx.new(|cx| {
12258            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
12259        });
12260        workspace.update_in(cx, |workspace, window, cx| {
12261            let original_pane = workspace.panes[0].clone();
12262            workspace.set_active_pane(&original_pane, window, cx);
12263            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
12264            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
12265            assert_eq!(
12266                pane_items_paths(&workspace.active_pane, cx),
12267                vec!["first.txt".to_string(), "third.txt".to_string()],
12268                "New pane should be ready to move one item out"
12269            );
12270
12271            workspace.move_item_to_pane_at_index(
12272                &MoveItemToPane {
12273                    destination: 3,
12274                    focus: true,
12275                    clone: false,
12276                },
12277                window,
12278                cx,
12279            );
12280            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
12281            assert_eq!(
12282                pane_items_paths(&workspace.active_pane, cx),
12283                vec!["first.txt".to_string()],
12284                "After moving, one item should be left in the original pane"
12285            );
12286            assert_eq!(
12287                pane_items_paths(&workspace.panes[1], cx),
12288                vec!["second.txt".to_string()],
12289                "Previously created pane should be unchanged"
12290            );
12291            assert_eq!(
12292                pane_items_paths(&workspace.panes[2], cx),
12293                vec!["third.txt".to_string()],
12294                "New item should have been moved to the new pane"
12295            );
12296        });
12297    }
12298
12299    #[gpui::test]
12300    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
12301        init_test(cx);
12302
12303        let fs = FakeFs::new(cx.executor());
12304        let project = Project::test(fs, [], cx).await;
12305        let (workspace, cx) =
12306            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12307
12308        let item_1 = cx.new(|cx| {
12309            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12310        });
12311        workspace.update_in(cx, |workspace, window, cx| {
12312            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12313            workspace.move_item_to_pane_in_direction(
12314                &MoveItemToPaneInDirection {
12315                    direction: SplitDirection::Right,
12316                    focus: true,
12317                    clone: true,
12318                },
12319                window,
12320                cx,
12321            );
12322        });
12323        cx.run_until_parked();
12324        workspace.update_in(cx, |workspace, window, cx| {
12325            workspace.move_item_to_pane_at_index(
12326                &MoveItemToPane {
12327                    destination: 3,
12328                    focus: true,
12329                    clone: true,
12330                },
12331                window,
12332                cx,
12333            );
12334        });
12335        cx.run_until_parked();
12336
12337        workspace.update(cx, |workspace, cx| {
12338            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
12339            for pane in workspace.panes() {
12340                assert_eq!(
12341                    pane_items_paths(pane, cx),
12342                    vec!["first.txt".to_string()],
12343                    "Single item exists in all panes"
12344                );
12345            }
12346        });
12347
12348        // verify that the active pane has been updated after waiting for the
12349        // pane focus event to fire and resolve
12350        workspace.read_with(cx, |workspace, _app| {
12351            assert_eq!(
12352                workspace.active_pane(),
12353                &workspace.panes[2],
12354                "The third pane should be the active one: {:?}",
12355                workspace.panes
12356            );
12357        })
12358    }
12359
12360    #[gpui::test]
12361    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
12362        init_test(cx);
12363
12364        let fs = FakeFs::new(cx.executor());
12365        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
12366
12367        let project = Project::test(fs, ["root".as_ref()], cx).await;
12368        let (workspace, cx) =
12369            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12370
12371        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12372        // Add item to pane A with project path
12373        let item_a = cx.new(|cx| {
12374            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12375        });
12376        workspace.update_in(cx, |workspace, window, cx| {
12377            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
12378        });
12379
12380        // Split to create pane B
12381        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
12382            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
12383        });
12384
12385        // Add item with SAME project path to pane B, and pin it
12386        let item_b = cx.new(|cx| {
12387            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12388        });
12389        pane_b.update_in(cx, |pane, window, cx| {
12390            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12391            pane.set_pinned_count(1);
12392        });
12393
12394        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
12395        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
12396
12397        // close_pinned: false should only close the unpinned copy
12398        workspace.update_in(cx, |workspace, window, cx| {
12399            workspace.close_item_in_all_panes(
12400                &CloseItemInAllPanes {
12401                    save_intent: Some(SaveIntent::Close),
12402                    close_pinned: false,
12403                },
12404                window,
12405                cx,
12406            )
12407        });
12408        cx.executor().run_until_parked();
12409
12410        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
12411        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
12412        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
12413        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
12414
12415        // Split again, seeing as closing the previous item also closed its
12416        // pane, so only pane remains, which does not allow us to properly test
12417        // that both items close when `close_pinned: true`.
12418        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
12419            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
12420        });
12421
12422        // Add an item with the same project path to pane C so that
12423        // close_item_in_all_panes can determine what to close across all panes
12424        // (it reads the active item from the active pane, and split_pane
12425        // creates an empty pane).
12426        let item_c = cx.new(|cx| {
12427            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12428        });
12429        pane_c.update_in(cx, |pane, window, cx| {
12430            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
12431        });
12432
12433        // close_pinned: true should close the pinned copy too
12434        workspace.update_in(cx, |workspace, window, cx| {
12435            let panes_count = workspace.panes().len();
12436            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
12437
12438            workspace.close_item_in_all_panes(
12439                &CloseItemInAllPanes {
12440                    save_intent: Some(SaveIntent::Close),
12441                    close_pinned: true,
12442                },
12443                window,
12444                cx,
12445            )
12446        });
12447        cx.executor().run_until_parked();
12448
12449        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
12450        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
12451        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
12452        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
12453    }
12454
12455    mod register_project_item_tests {
12456
12457        use super::*;
12458
12459        // View
12460        struct TestPngItemView {
12461            focus_handle: FocusHandle,
12462        }
12463        // Model
12464        struct TestPngItem {}
12465
12466        impl project::ProjectItem for TestPngItem {
12467            fn try_open(
12468                _project: &Entity<Project>,
12469                path: &ProjectPath,
12470                cx: &mut App,
12471            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12472                if path.path.extension().unwrap() == "png" {
12473                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
12474                } else {
12475                    None
12476                }
12477            }
12478
12479            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12480                None
12481            }
12482
12483            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12484                None
12485            }
12486
12487            fn is_dirty(&self) -> bool {
12488                false
12489            }
12490        }
12491
12492        impl Item for TestPngItemView {
12493            type Event = ();
12494            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12495                "".into()
12496            }
12497        }
12498        impl EventEmitter<()> for TestPngItemView {}
12499        impl Focusable for TestPngItemView {
12500            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12501                self.focus_handle.clone()
12502            }
12503        }
12504
12505        impl Render for TestPngItemView {
12506            fn render(
12507                &mut self,
12508                _window: &mut Window,
12509                _cx: &mut Context<Self>,
12510            ) -> impl IntoElement {
12511                Empty
12512            }
12513        }
12514
12515        impl ProjectItem for TestPngItemView {
12516            type Item = TestPngItem;
12517
12518            fn for_project_item(
12519                _project: Entity<Project>,
12520                _pane: Option<&Pane>,
12521                _item: Entity<Self::Item>,
12522                _: &mut Window,
12523                cx: &mut Context<Self>,
12524            ) -> Self
12525            where
12526                Self: Sized,
12527            {
12528                Self {
12529                    focus_handle: cx.focus_handle(),
12530                }
12531            }
12532        }
12533
12534        // View
12535        struct TestIpynbItemView {
12536            focus_handle: FocusHandle,
12537        }
12538        // Model
12539        struct TestIpynbItem {}
12540
12541        impl project::ProjectItem for TestIpynbItem {
12542            fn try_open(
12543                _project: &Entity<Project>,
12544                path: &ProjectPath,
12545                cx: &mut App,
12546            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12547                if path.path.extension().unwrap() == "ipynb" {
12548                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
12549                } else {
12550                    None
12551                }
12552            }
12553
12554            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12555                None
12556            }
12557
12558            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12559                None
12560            }
12561
12562            fn is_dirty(&self) -> bool {
12563                false
12564            }
12565        }
12566
12567        impl Item for TestIpynbItemView {
12568            type Event = ();
12569            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12570                "".into()
12571            }
12572        }
12573        impl EventEmitter<()> for TestIpynbItemView {}
12574        impl Focusable for TestIpynbItemView {
12575            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12576                self.focus_handle.clone()
12577            }
12578        }
12579
12580        impl Render for TestIpynbItemView {
12581            fn render(
12582                &mut self,
12583                _window: &mut Window,
12584                _cx: &mut Context<Self>,
12585            ) -> impl IntoElement {
12586                Empty
12587            }
12588        }
12589
12590        impl ProjectItem for TestIpynbItemView {
12591            type Item = TestIpynbItem;
12592
12593            fn for_project_item(
12594                _project: Entity<Project>,
12595                _pane: Option<&Pane>,
12596                _item: Entity<Self::Item>,
12597                _: &mut Window,
12598                cx: &mut Context<Self>,
12599            ) -> Self
12600            where
12601                Self: Sized,
12602            {
12603                Self {
12604                    focus_handle: cx.focus_handle(),
12605                }
12606            }
12607        }
12608
12609        struct TestAlternatePngItemView {
12610            focus_handle: FocusHandle,
12611        }
12612
12613        impl Item for TestAlternatePngItemView {
12614            type Event = ();
12615            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12616                "".into()
12617            }
12618        }
12619
12620        impl EventEmitter<()> for TestAlternatePngItemView {}
12621        impl Focusable for TestAlternatePngItemView {
12622            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12623                self.focus_handle.clone()
12624            }
12625        }
12626
12627        impl Render for TestAlternatePngItemView {
12628            fn render(
12629                &mut self,
12630                _window: &mut Window,
12631                _cx: &mut Context<Self>,
12632            ) -> impl IntoElement {
12633                Empty
12634            }
12635        }
12636
12637        impl ProjectItem for TestAlternatePngItemView {
12638            type Item = TestPngItem;
12639
12640            fn for_project_item(
12641                _project: Entity<Project>,
12642                _pane: Option<&Pane>,
12643                _item: Entity<Self::Item>,
12644                _: &mut Window,
12645                cx: &mut Context<Self>,
12646            ) -> Self
12647            where
12648                Self: Sized,
12649            {
12650                Self {
12651                    focus_handle: cx.focus_handle(),
12652                }
12653            }
12654        }
12655
12656        #[gpui::test]
12657        async fn test_register_project_item(cx: &mut TestAppContext) {
12658            init_test(cx);
12659
12660            cx.update(|cx| {
12661                register_project_item::<TestPngItemView>(cx);
12662                register_project_item::<TestIpynbItemView>(cx);
12663            });
12664
12665            let fs = FakeFs::new(cx.executor());
12666            fs.insert_tree(
12667                "/root1",
12668                json!({
12669                    "one.png": "BINARYDATAHERE",
12670                    "two.ipynb": "{ totally a notebook }",
12671                    "three.txt": "editing text, sure why not?"
12672                }),
12673            )
12674            .await;
12675
12676            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12677            let (workspace, cx) =
12678                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12679
12680            let worktree_id = project.update(cx, |project, cx| {
12681                project.worktrees(cx).next().unwrap().read(cx).id()
12682            });
12683
12684            let handle = workspace
12685                .update_in(cx, |workspace, window, cx| {
12686                    let project_path = (worktree_id, rel_path("one.png"));
12687                    workspace.open_path(project_path, None, true, window, cx)
12688                })
12689                .await
12690                .unwrap();
12691
12692            // Now we can check if the handle we got back errored or not
12693            assert_eq!(
12694                handle.to_any_view().entity_type(),
12695                TypeId::of::<TestPngItemView>()
12696            );
12697
12698            let handle = workspace
12699                .update_in(cx, |workspace, window, cx| {
12700                    let project_path = (worktree_id, rel_path("two.ipynb"));
12701                    workspace.open_path(project_path, None, true, window, cx)
12702                })
12703                .await
12704                .unwrap();
12705
12706            assert_eq!(
12707                handle.to_any_view().entity_type(),
12708                TypeId::of::<TestIpynbItemView>()
12709            );
12710
12711            let handle = workspace
12712                .update_in(cx, |workspace, window, cx| {
12713                    let project_path = (worktree_id, rel_path("three.txt"));
12714                    workspace.open_path(project_path, None, true, window, cx)
12715                })
12716                .await;
12717            assert!(handle.is_err());
12718        }
12719
12720        #[gpui::test]
12721        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
12722            init_test(cx);
12723
12724            cx.update(|cx| {
12725                register_project_item::<TestPngItemView>(cx);
12726                register_project_item::<TestAlternatePngItemView>(cx);
12727            });
12728
12729            let fs = FakeFs::new(cx.executor());
12730            fs.insert_tree(
12731                "/root1",
12732                json!({
12733                    "one.png": "BINARYDATAHERE",
12734                    "two.ipynb": "{ totally a notebook }",
12735                    "three.txt": "editing text, sure why not?"
12736                }),
12737            )
12738            .await;
12739            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12740            let (workspace, cx) =
12741                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12742            let worktree_id = project.update(cx, |project, cx| {
12743                project.worktrees(cx).next().unwrap().read(cx).id()
12744            });
12745
12746            let handle = workspace
12747                .update_in(cx, |workspace, window, cx| {
12748                    let project_path = (worktree_id, rel_path("one.png"));
12749                    workspace.open_path(project_path, None, true, window, cx)
12750                })
12751                .await
12752                .unwrap();
12753
12754            // This _must_ be the second item registered
12755            assert_eq!(
12756                handle.to_any_view().entity_type(),
12757                TypeId::of::<TestAlternatePngItemView>()
12758            );
12759
12760            let handle = workspace
12761                .update_in(cx, |workspace, window, cx| {
12762                    let project_path = (worktree_id, rel_path("three.txt"));
12763                    workspace.open_path(project_path, None, true, window, cx)
12764                })
12765                .await;
12766            assert!(handle.is_err());
12767        }
12768    }
12769
12770    #[gpui::test]
12771    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
12772        init_test(cx);
12773
12774        let fs = FakeFs::new(cx.executor());
12775        let project = Project::test(fs, [], cx).await;
12776        let (workspace, _cx) =
12777            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12778
12779        // Test with status bar shown (default)
12780        workspace.read_with(cx, |workspace, cx| {
12781            let visible = workspace.status_bar_visible(cx);
12782            assert!(visible, "Status bar should be visible by default");
12783        });
12784
12785        // Test with status bar hidden
12786        cx.update_global(|store: &mut SettingsStore, cx| {
12787            store.update_user_settings(cx, |settings| {
12788                settings.status_bar.get_or_insert_default().show = Some(false);
12789            });
12790        });
12791
12792        workspace.read_with(cx, |workspace, cx| {
12793            let visible = workspace.status_bar_visible(cx);
12794            assert!(!visible, "Status bar should be hidden when show is false");
12795        });
12796
12797        // Test with status bar shown explicitly
12798        cx.update_global(|store: &mut SettingsStore, cx| {
12799            store.update_user_settings(cx, |settings| {
12800                settings.status_bar.get_or_insert_default().show = Some(true);
12801            });
12802        });
12803
12804        workspace.read_with(cx, |workspace, cx| {
12805            let visible = workspace.status_bar_visible(cx);
12806            assert!(visible, "Status bar should be visible when show is true");
12807        });
12808    }
12809
12810    #[gpui::test]
12811    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
12812        init_test(cx);
12813
12814        let fs = FakeFs::new(cx.executor());
12815        let project = Project::test(fs, [], cx).await;
12816        let (workspace, cx) =
12817            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12818        let panel = workspace.update_in(cx, |workspace, window, cx| {
12819            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12820            workspace.add_panel(panel.clone(), window, cx);
12821
12822            workspace
12823                .right_dock()
12824                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12825
12826            panel
12827        });
12828
12829        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12830        let item_a = cx.new(TestItem::new);
12831        let item_b = cx.new(TestItem::new);
12832        let item_a_id = item_a.entity_id();
12833        let item_b_id = item_b.entity_id();
12834
12835        pane.update_in(cx, |pane, window, cx| {
12836            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
12837            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12838        });
12839
12840        pane.read_with(cx, |pane, _| {
12841            assert_eq!(pane.items_len(), 2);
12842            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
12843        });
12844
12845        workspace.update_in(cx, |workspace, window, cx| {
12846            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12847        });
12848
12849        workspace.update_in(cx, |_, window, cx| {
12850            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12851        });
12852
12853        // Assert that the `pane::CloseActiveItem` action is handled at the
12854        // workspace level when one of the dock panels is focused and, in that
12855        // case, the center pane's active item is closed but the focus is not
12856        // moved.
12857        cx.dispatch_action(pane::CloseActiveItem::default());
12858        cx.run_until_parked();
12859
12860        pane.read_with(cx, |pane, _| {
12861            assert_eq!(pane.items_len(), 1);
12862            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
12863        });
12864
12865        workspace.update_in(cx, |workspace, window, cx| {
12866            assert!(workspace.right_dock().read(cx).is_open());
12867            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12868        });
12869    }
12870
12871    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
12872        pane.read(cx)
12873            .items()
12874            .flat_map(|item| {
12875                item.project_paths(cx)
12876                    .into_iter()
12877                    .map(|path| path.path.display(PathStyle::local()).into_owned())
12878            })
12879            .collect()
12880    }
12881
12882    pub fn init_test(cx: &mut TestAppContext) {
12883        cx.update(|cx| {
12884            let settings_store = SettingsStore::test(cx);
12885            cx.set_global(settings_store);
12886            theme::init(theme::LoadThemes::JustBase, cx);
12887        });
12888    }
12889
12890    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
12891        let item = TestProjectItem::new(id, path, cx);
12892        item.update(cx, |item, _| {
12893            item.is_dirty = true;
12894        });
12895        item
12896    }
12897}