workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12mod security_modal;
   13pub mod shared_screen;
   14mod status_bar;
   15pub mod tasks;
   16mod theme_preview;
   17mod toast_layer;
   18mod toolbar;
   19pub mod utility_pane;
   20pub mod welcome;
   21mod workspace_settings;
   22
   23pub use crate::notifications::NotificationFrame;
   24pub use dock::Panel;
   25pub use path_list::PathList;
   26pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   27
   28use anyhow::{Context as _, Result, anyhow};
   29use call::{ActiveCall, call_settings::CallSettings};
   30use client::{
   31    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   32    proto::{self, ErrorCode, PanelId, PeerId},
   33};
   34use collections::{HashMap, HashSet, hash_map};
   35use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   36use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   37use futures::{
   38    Future, FutureExt, StreamExt,
   39    channel::{
   40        mpsc::{self, UnboundedReceiver, UnboundedSender},
   41        oneshot,
   42    },
   43    future::{Shared, try_join_all},
   44};
   45use gpui::{
   46    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   47    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   48    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   49    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   50    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   51    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   52};
   53pub use history_manager::*;
   54pub use item::{
   55    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   56    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   57};
   58use itertools::Itertools;
   59use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   60pub use modal_layer::*;
   61use node_runtime::NodeRuntime;
   62use notifications::{
   63    DetachAndPromptErr, Notifications, dismiss_app_notification,
   64    simple_message_notification::MessageNotification,
   65};
   66pub use pane::*;
   67pub use pane_group::{
   68    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   69    SplitDirection,
   70};
   71use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   72pub use persistence::{
   73    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   74    model::{ItemId, SerializedWorkspaceLocation},
   75};
   76use postage::stream::Stream;
   77use project::{
   78    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   79    WorktreeSettings,
   80    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   81    project_settings::ProjectSettings,
   82    toolchain_store::ToolchainStoreEvent,
   83    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   84};
   85use remote::{
   86    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   87    remote_client::ConnectionIdentifier,
   88};
   89use schemars::JsonSchema;
   90use serde::Deserialize;
   91use session::AppSession;
   92use settings::{
   93    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   94};
   95use shared_screen::SharedScreen;
   96use sqlez::{
   97    bindable::{Bind, Column, StaticColumnCount},
   98    statement::Statement,
   99};
  100use status_bar::StatusBar;
  101pub use status_bar::StatusItemView;
  102use std::{
  103    any::TypeId,
  104    borrow::Cow,
  105    cell::RefCell,
  106    cmp,
  107    collections::{VecDeque, hash_map::DefaultHasher},
  108    env,
  109    hash::{Hash, Hasher},
  110    path::{Path, PathBuf},
  111    process::ExitStatus,
  112    rc::Rc,
  113    sync::{
  114        Arc, LazyLock, Weak,
  115        atomic::{AtomicBool, AtomicUsize},
  116    },
  117    time::Duration,
  118};
  119use task::{DebugScenario, SpawnInTerminal, TaskContext};
  120use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  121pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  122pub use ui;
  123use ui::{Window, prelude::*};
  124use util::{
  125    ResultExt, TryFutureExt,
  126    paths::{PathStyle, SanitizedPath},
  127    rel_path::RelPath,
  128    serde::default_true,
  129};
  130use uuid::Uuid;
  131pub use workspace_settings::{
  132    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  133    WorkspaceSettings,
  134};
  135use zed_actions::{Spawn, feedback::FileBugReport};
  136
  137use crate::{
  138    item::ItemBufferKind,
  139    notifications::NotificationId,
  140    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  141};
  142use crate::{
  143    persistence::{
  144        SerializedAxis,
  145        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  146    },
  147    security_modal::SecurityModal,
  148    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  149};
  150
  151pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  152
  153static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  154    env::var("ZED_WINDOW_SIZE")
  155        .ok()
  156        .as_deref()
  157        .and_then(parse_pixel_size_env_var)
  158});
  159
  160static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  161    env::var("ZED_WINDOW_POSITION")
  162        .ok()
  163        .as_deref()
  164        .and_then(parse_pixel_position_env_var)
  165});
  166
  167pub trait TerminalProvider {
  168    fn spawn(
  169        &self,
  170        task: SpawnInTerminal,
  171        window: &mut Window,
  172        cx: &mut App,
  173    ) -> Task<Option<Result<ExitStatus>>>;
  174}
  175
  176pub trait DebuggerProvider {
  177    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  178    fn start_session(
  179        &self,
  180        definition: DebugScenario,
  181        task_context: TaskContext,
  182        active_buffer: Option<Entity<Buffer>>,
  183        worktree_id: Option<WorktreeId>,
  184        window: &mut Window,
  185        cx: &mut App,
  186    );
  187
  188    fn spawn_task_or_modal(
  189        &self,
  190        workspace: &mut Workspace,
  191        action: &Spawn,
  192        window: &mut Window,
  193        cx: &mut Context<Workspace>,
  194    );
  195
  196    fn task_scheduled(&self, cx: &mut App);
  197    fn debug_scenario_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  199
  200    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  201}
  202
  203actions!(
  204    workspace,
  205    [
  206        /// Activates the next pane in the workspace.
  207        ActivateNextPane,
  208        /// Activates the previous pane in the workspace.
  209        ActivatePreviousPane,
  210        /// Switches to the next window.
  211        ActivateNextWindow,
  212        /// Switches to the previous window.
  213        ActivatePreviousWindow,
  214        /// Adds a folder to the current project.
  215        AddFolderToProject,
  216        /// Opens the project switcher dropdown (only visible when multiple folders are open).
  217        SwitchProject,
  218        /// Clears all notifications.
  219        ClearAllNotifications,
  220        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  221        ClearNavigationHistory,
  222        /// Closes the active dock.
  223        CloseActiveDock,
  224        /// Closes all docks.
  225        CloseAllDocks,
  226        /// Toggles all docks.
  227        ToggleAllDocks,
  228        /// Closes the current window.
  229        CloseWindow,
  230        /// Opens the feedback dialog.
  231        Feedback,
  232        /// Follows the next collaborator in the session.
  233        FollowNextCollaborator,
  234        /// Moves the focused panel to the next position.
  235        MoveFocusedPanelToNextPosition,
  236        /// Creates a new file.
  237        NewFile,
  238        /// Creates a new file in a vertical split.
  239        NewFileSplitVertical,
  240        /// Creates a new file in a horizontal split.
  241        NewFileSplitHorizontal,
  242        /// Opens a new search.
  243        NewSearch,
  244        /// Opens a new window.
  245        NewWindow,
  246        /// Opens a file or directory.
  247        Open,
  248        /// Opens multiple files.
  249        OpenFiles,
  250        /// Opens the current location in terminal.
  251        OpenInTerminal,
  252        /// Opens the component preview.
  253        OpenComponentPreview,
  254        /// Reloads the active item.
  255        ReloadActiveItem,
  256        /// Resets the active dock to its default size.
  257        ResetActiveDockSize,
  258        /// Resets all open docks to their default sizes.
  259        ResetOpenDocksSize,
  260        /// Reloads the application
  261        Reload,
  262        /// Saves the current file with a new name.
  263        SaveAs,
  264        /// Saves without formatting.
  265        SaveWithoutFormat,
  266        /// Shuts down all debug adapters.
  267        ShutdownDebugAdapters,
  268        /// Suppresses the current notification.
  269        SuppressNotification,
  270        /// Toggles the bottom dock.
  271        ToggleBottomDock,
  272        /// Toggles centered layout mode.
  273        ToggleCenteredLayout,
  274        /// Toggles edit prediction feature globally for all files.
  275        ToggleEditPrediction,
  276        /// Toggles the left dock.
  277        ToggleLeftDock,
  278        /// Toggles the right dock.
  279        ToggleRightDock,
  280        /// Toggles zoom on the active pane.
  281        ToggleZoom,
  282        /// Toggles read-only mode for the active item (if supported by that item).
  283        ToggleReadOnlyFile,
  284        /// Zooms in on the active pane.
  285        ZoomIn,
  286        /// Zooms out of the active pane.
  287        ZoomOut,
  288        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  289        /// If the modal is shown already, closes it without trusting any worktree.
  290        ToggleWorktreeSecurity,
  291        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  292        /// Requires restart to take effect on already opened projects.
  293        ClearTrustedWorktrees,
  294        /// Stops following a collaborator.
  295        Unfollow,
  296        /// Restores the banner.
  297        RestoreBanner,
  298        /// Toggles expansion of the selected item.
  299        ToggleExpandItem,
  300    ]
  301);
  302
  303/// Activates a specific pane by its index.
  304#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  305#[action(namespace = workspace)]
  306pub struct ActivatePane(pub usize);
  307
  308/// Moves an item to a specific pane by index.
  309#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  310#[action(namespace = workspace)]
  311#[serde(deny_unknown_fields)]
  312pub struct MoveItemToPane {
  313    #[serde(default = "default_1")]
  314    pub destination: usize,
  315    #[serde(default = "default_true")]
  316    pub focus: bool,
  317    #[serde(default)]
  318    pub clone: bool,
  319}
  320
  321fn default_1() -> usize {
  322    1
  323}
  324
  325/// Moves an item to a pane in the specified direction.
  326#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  327#[action(namespace = workspace)]
  328#[serde(deny_unknown_fields)]
  329pub struct MoveItemToPaneInDirection {
  330    #[serde(default = "default_right")]
  331    pub direction: SplitDirection,
  332    #[serde(default = "default_true")]
  333    pub focus: bool,
  334    #[serde(default)]
  335    pub clone: bool,
  336}
  337
  338/// Creates a new file in a split of the desired direction.
  339#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct NewFileSplit(pub SplitDirection);
  343
  344fn default_right() -> SplitDirection {
  345    SplitDirection::Right
  346}
  347
  348/// Saves all open files in the workspace.
  349#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  350#[action(namespace = workspace)]
  351#[serde(deny_unknown_fields)]
  352pub struct SaveAll {
  353    #[serde(default)]
  354    pub save_intent: Option<SaveIntent>,
  355}
  356
  357/// Saves the current file with the specified options.
  358#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct Save {
  362    #[serde(default)]
  363    pub save_intent: Option<SaveIntent>,
  364}
  365
  366/// Closes all items and panes in the workspace.
  367#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct CloseAllItemsAndPanes {
  371    #[serde(default)]
  372    pub save_intent: Option<SaveIntent>,
  373}
  374
  375/// Closes all inactive tabs and panes in the workspace.
  376#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct CloseInactiveTabsAndPanes {
  380    #[serde(default)]
  381    pub save_intent: Option<SaveIntent>,
  382}
  383
  384/// Sends a sequence of keystrokes to the active element.
  385#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387pub struct SendKeystrokes(pub String);
  388
  389actions!(
  390    project_symbols,
  391    [
  392        /// Toggles the project symbols search.
  393        #[action(name = "Toggle")]
  394        ToggleProjectSymbols
  395    ]
  396);
  397
  398/// Toggles the file finder interface.
  399#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  400#[action(namespace = file_finder, name = "Toggle")]
  401#[serde(deny_unknown_fields)]
  402pub struct ToggleFileFinder {
  403    #[serde(default)]
  404    pub separate_history: bool,
  405}
  406
  407/// Opens a new terminal in the center.
  408#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  409#[action(namespace = workspace)]
  410#[serde(deny_unknown_fields)]
  411pub struct NewCenterTerminal {
  412    /// If true, creates a local terminal even in remote projects.
  413    #[serde(default)]
  414    pub local: bool,
  415}
  416
  417/// Opens a new terminal.
  418#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct NewTerminal {
  422    /// If true, creates a local terminal even in remote projects.
  423    #[serde(default)]
  424    pub local: bool,
  425}
  426
  427/// Increases size of a currently focused dock by a given amount of pixels.
  428#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  429#[action(namespace = workspace)]
  430#[serde(deny_unknown_fields)]
  431pub struct IncreaseActiveDockSize {
  432    /// For 0px parameter, uses UI font size value.
  433    #[serde(default)]
  434    pub px: u32,
  435}
  436
  437/// Decreases size of a currently focused dock by a given amount of pixels.
  438#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440#[serde(deny_unknown_fields)]
  441pub struct DecreaseActiveDockSize {
  442    /// For 0px parameter, uses UI font size value.
  443    #[serde(default)]
  444    pub px: u32,
  445}
  446
  447/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  448#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  449#[action(namespace = workspace)]
  450#[serde(deny_unknown_fields)]
  451pub struct IncreaseOpenDocksSize {
  452    /// For 0px parameter, uses UI font size value.
  453    #[serde(default)]
  454    pub px: u32,
  455}
  456
  457/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  458#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  459#[action(namespace = workspace)]
  460#[serde(deny_unknown_fields)]
  461pub struct DecreaseOpenDocksSize {
  462    /// For 0px parameter, uses UI font size value.
  463    #[serde(default)]
  464    pub px: u32,
  465}
  466
  467actions!(
  468    workspace,
  469    [
  470        /// Activates the pane to the left.
  471        ActivatePaneLeft,
  472        /// Activates the pane to the right.
  473        ActivatePaneRight,
  474        /// Activates the pane above.
  475        ActivatePaneUp,
  476        /// Activates the pane below.
  477        ActivatePaneDown,
  478        /// Swaps the current pane with the one to the left.
  479        SwapPaneLeft,
  480        /// Swaps the current pane with the one to the right.
  481        SwapPaneRight,
  482        /// Swaps the current pane with the one above.
  483        SwapPaneUp,
  484        /// Swaps the current pane with the one below.
  485        SwapPaneDown,
  486        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  487        SwapPaneAdjacent,
  488        /// Move the current pane to be at the far left.
  489        MovePaneLeft,
  490        /// Move the current pane to be at the far right.
  491        MovePaneRight,
  492        /// Move the current pane to be at the very top.
  493        MovePaneUp,
  494        /// Move the current pane to be at the very bottom.
  495        MovePaneDown,
  496    ]
  497);
  498
  499#[derive(PartialEq, Eq, Debug)]
  500pub enum CloseIntent {
  501    /// Quit the program entirely.
  502    Quit,
  503    /// Close a window.
  504    CloseWindow,
  505    /// Replace the workspace in an existing window.
  506    ReplaceWindow,
  507}
  508
  509#[derive(Clone)]
  510pub struct Toast {
  511    id: NotificationId,
  512    msg: Cow<'static, str>,
  513    autohide: bool,
  514    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  515}
  516
  517impl Toast {
  518    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  519        Toast {
  520            id,
  521            msg: msg.into(),
  522            on_click: None,
  523            autohide: false,
  524        }
  525    }
  526
  527    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  528    where
  529        M: Into<Cow<'static, str>>,
  530        F: Fn(&mut Window, &mut App) + 'static,
  531    {
  532        self.on_click = Some((message.into(), Arc::new(on_click)));
  533        self
  534    }
  535
  536    pub fn autohide(mut self) -> Self {
  537        self.autohide = true;
  538        self
  539    }
  540}
  541
  542impl PartialEq for Toast {
  543    fn eq(&self, other: &Self) -> bool {
  544        self.id == other.id
  545            && self.msg == other.msg
  546            && self.on_click.is_some() == other.on_click.is_some()
  547    }
  548}
  549
  550/// Opens a new terminal with the specified working directory.
  551#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  552#[action(namespace = workspace)]
  553#[serde(deny_unknown_fields)]
  554pub struct OpenTerminal {
  555    pub working_directory: PathBuf,
  556    /// If true, creates a local terminal even in remote projects.
  557    #[serde(default)]
  558    pub local: bool,
  559}
  560
  561#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  562pub struct WorkspaceId(i64);
  563
  564impl StaticColumnCount for WorkspaceId {}
  565impl Bind for WorkspaceId {
  566    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  567        self.0.bind(statement, start_index)
  568    }
  569}
  570impl Column for WorkspaceId {
  571    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  572        i64::column(statement, start_index)
  573            .map(|(i, next_index)| (Self(i), next_index))
  574            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  575    }
  576}
  577impl From<WorkspaceId> for i64 {
  578    fn from(val: WorkspaceId) -> Self {
  579        val.0
  580    }
  581}
  582
  583fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  584    let paths = cx.prompt_for_paths(options);
  585    cx.spawn(
  586        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  587            Ok(Some(paths)) => {
  588                cx.update(|cx| {
  589                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  590                });
  591            }
  592            Ok(None) => {}
  593            Err(err) => {
  594                util::log_err(&err);
  595                cx.update(|cx| {
  596                    if let Some(workspace_window) = cx
  597                        .active_window()
  598                        .and_then(|window| window.downcast::<Workspace>())
  599                    {
  600                        workspace_window
  601                            .update(cx, |workspace, _, cx| {
  602                                workspace.show_portal_error(err.to_string(), cx);
  603                            })
  604                            .ok();
  605                    }
  606                });
  607            }
  608        },
  609    )
  610    .detach();
  611}
  612
  613pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  614    component::init();
  615    theme_preview::init(cx);
  616    toast_layer::init(cx);
  617    history_manager::init(cx);
  618
  619    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  620        .on_action(|_: &Reload, cx| reload(cx))
  621        .on_action({
  622            let app_state = Arc::downgrade(&app_state);
  623            move |_: &Open, cx: &mut App| {
  624                if let Some(app_state) = app_state.upgrade() {
  625                    prompt_and_open_paths(
  626                        app_state,
  627                        PathPromptOptions {
  628                            files: true,
  629                            directories: true,
  630                            multiple: true,
  631                            prompt: None,
  632                        },
  633                        cx,
  634                    );
  635                }
  636            }
  637        })
  638        .on_action({
  639            let app_state = Arc::downgrade(&app_state);
  640            move |_: &OpenFiles, cx: &mut App| {
  641                let directories = cx.can_select_mixed_files_and_dirs();
  642                if let Some(app_state) = app_state.upgrade() {
  643                    prompt_and_open_paths(
  644                        app_state,
  645                        PathPromptOptions {
  646                            files: true,
  647                            directories,
  648                            multiple: true,
  649                            prompt: None,
  650                        },
  651                        cx,
  652                    );
  653                }
  654            }
  655        });
  656}
  657
  658type BuildProjectItemFn =
  659    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  660
  661type BuildProjectItemForPathFn =
  662    fn(
  663        &Entity<Project>,
  664        &ProjectPath,
  665        &mut Window,
  666        &mut App,
  667    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  668
  669#[derive(Clone, Default)]
  670struct ProjectItemRegistry {
  671    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  672    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  673}
  674
  675impl ProjectItemRegistry {
  676    fn register<T: ProjectItem>(&mut self) {
  677        self.build_project_item_fns_by_type.insert(
  678            TypeId::of::<T::Item>(),
  679            |item, project, pane, window, cx| {
  680                let item = item.downcast().unwrap();
  681                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  682                    as Box<dyn ItemHandle>
  683            },
  684        );
  685        self.build_project_item_for_path_fns
  686            .push(|project, project_path, window, cx| {
  687                let project_path = project_path.clone();
  688                let is_file = project
  689                    .read(cx)
  690                    .entry_for_path(&project_path, cx)
  691                    .is_some_and(|entry| entry.is_file());
  692                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  693                let is_local = project.read(cx).is_local();
  694                let project_item =
  695                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  696                let project = project.clone();
  697                Some(window.spawn(cx, async move |cx| {
  698                    match project_item.await.with_context(|| {
  699                        format!(
  700                            "opening project path {:?}",
  701                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  702                        )
  703                    }) {
  704                        Ok(project_item) => {
  705                            let project_item = project_item;
  706                            let project_entry_id: Option<ProjectEntryId> =
  707                                project_item.read_with(cx, project::ProjectItem::entry_id);
  708                            let build_workspace_item = Box::new(
  709                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  710                                    Box::new(cx.new(|cx| {
  711                                        T::for_project_item(
  712                                            project,
  713                                            Some(pane),
  714                                            project_item,
  715                                            window,
  716                                            cx,
  717                                        )
  718                                    })) as Box<dyn ItemHandle>
  719                                },
  720                            ) as Box<_>;
  721                            Ok((project_entry_id, build_workspace_item))
  722                        }
  723                        Err(e) => {
  724                            log::warn!("Failed to open a project item: {e:#}");
  725                            if e.error_code() == ErrorCode::Internal {
  726                                if let Some(abs_path) =
  727                                    entry_abs_path.as_deref().filter(|_| is_file)
  728                                {
  729                                    if let Some(broken_project_item_view) =
  730                                        cx.update(|window, cx| {
  731                                            T::for_broken_project_item(
  732                                                abs_path, is_local, &e, window, cx,
  733                                            )
  734                                        })?
  735                                    {
  736                                        let build_workspace_item = Box::new(
  737                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  738                                                cx.new(|_| broken_project_item_view).boxed_clone()
  739                                            },
  740                                        )
  741                                        as Box<_>;
  742                                        return Ok((None, build_workspace_item));
  743                                    }
  744                                }
  745                            }
  746                            Err(e)
  747                        }
  748                    }
  749                }))
  750            });
  751    }
  752
  753    fn open_path(
  754        &self,
  755        project: &Entity<Project>,
  756        path: &ProjectPath,
  757        window: &mut Window,
  758        cx: &mut App,
  759    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  760        let Some(open_project_item) = self
  761            .build_project_item_for_path_fns
  762            .iter()
  763            .rev()
  764            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  765        else {
  766            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  767        };
  768        open_project_item
  769    }
  770
  771    fn build_item<T: project::ProjectItem>(
  772        &self,
  773        item: Entity<T>,
  774        project: Entity<Project>,
  775        pane: Option<&Pane>,
  776        window: &mut Window,
  777        cx: &mut App,
  778    ) -> Option<Box<dyn ItemHandle>> {
  779        let build = self
  780            .build_project_item_fns_by_type
  781            .get(&TypeId::of::<T>())?;
  782        Some(build(item.into_any(), project, pane, window, cx))
  783    }
  784}
  785
  786type WorkspaceItemBuilder =
  787    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  788
  789impl Global for ProjectItemRegistry {}
  790
  791/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  792/// items will get a chance to open the file, starting from the project item that
  793/// was added last.
  794pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  795    cx.default_global::<ProjectItemRegistry>().register::<I>();
  796}
  797
  798#[derive(Default)]
  799pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  800
  801struct FollowableViewDescriptor {
  802    from_state_proto: fn(
  803        Entity<Workspace>,
  804        ViewId,
  805        &mut Option<proto::view::Variant>,
  806        &mut Window,
  807        &mut App,
  808    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  809    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  810}
  811
  812impl Global for FollowableViewRegistry {}
  813
  814impl FollowableViewRegistry {
  815    pub fn register<I: FollowableItem>(cx: &mut App) {
  816        cx.default_global::<Self>().0.insert(
  817            TypeId::of::<I>(),
  818            FollowableViewDescriptor {
  819                from_state_proto: |workspace, id, state, window, cx| {
  820                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  821                        cx.foreground_executor()
  822                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  823                    })
  824                },
  825                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  826            },
  827        );
  828    }
  829
  830    pub fn from_state_proto(
  831        workspace: Entity<Workspace>,
  832        view_id: ViewId,
  833        mut state: Option<proto::view::Variant>,
  834        window: &mut Window,
  835        cx: &mut App,
  836    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  837        cx.update_default_global(|this: &mut Self, cx| {
  838            this.0.values().find_map(|descriptor| {
  839                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  840            })
  841        })
  842    }
  843
  844    pub fn to_followable_view(
  845        view: impl Into<AnyView>,
  846        cx: &App,
  847    ) -> Option<Box<dyn FollowableItemHandle>> {
  848        let this = cx.try_global::<Self>()?;
  849        let view = view.into();
  850        let descriptor = this.0.get(&view.entity_type())?;
  851        Some((descriptor.to_followable_view)(&view))
  852    }
  853}
  854
  855#[derive(Copy, Clone)]
  856struct SerializableItemDescriptor {
  857    deserialize: fn(
  858        Entity<Project>,
  859        WeakEntity<Workspace>,
  860        WorkspaceId,
  861        ItemId,
  862        &mut Window,
  863        &mut Context<Pane>,
  864    ) -> Task<Result<Box<dyn ItemHandle>>>,
  865    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  866    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  867}
  868
  869#[derive(Default)]
  870struct SerializableItemRegistry {
  871    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  872    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  873}
  874
  875impl Global for SerializableItemRegistry {}
  876
  877impl SerializableItemRegistry {
  878    fn deserialize(
  879        item_kind: &str,
  880        project: Entity<Project>,
  881        workspace: WeakEntity<Workspace>,
  882        workspace_id: WorkspaceId,
  883        item_item: ItemId,
  884        window: &mut Window,
  885        cx: &mut Context<Pane>,
  886    ) -> Task<Result<Box<dyn ItemHandle>>> {
  887        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  888            return Task::ready(Err(anyhow!(
  889                "cannot deserialize {}, descriptor not found",
  890                item_kind
  891            )));
  892        };
  893
  894        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  895    }
  896
  897    fn cleanup(
  898        item_kind: &str,
  899        workspace_id: WorkspaceId,
  900        loaded_items: Vec<ItemId>,
  901        window: &mut Window,
  902        cx: &mut App,
  903    ) -> Task<Result<()>> {
  904        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  905            return Task::ready(Err(anyhow!(
  906                "cannot cleanup {}, descriptor not found",
  907                item_kind
  908            )));
  909        };
  910
  911        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  912    }
  913
  914    fn view_to_serializable_item_handle(
  915        view: AnyView,
  916        cx: &App,
  917    ) -> Option<Box<dyn SerializableItemHandle>> {
  918        let this = cx.try_global::<Self>()?;
  919        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  920        Some((descriptor.view_to_serializable_item)(view))
  921    }
  922
  923    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  924        let this = cx.try_global::<Self>()?;
  925        this.descriptors_by_kind.get(item_kind).copied()
  926    }
  927}
  928
  929pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  930    let serialized_item_kind = I::serialized_item_kind();
  931
  932    let registry = cx.default_global::<SerializableItemRegistry>();
  933    let descriptor = SerializableItemDescriptor {
  934        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  935            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  936            cx.foreground_executor()
  937                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  938        },
  939        cleanup: |workspace_id, loaded_items, window, cx| {
  940            I::cleanup(workspace_id, loaded_items, window, cx)
  941        },
  942        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  943    };
  944    registry
  945        .descriptors_by_kind
  946        .insert(Arc::from(serialized_item_kind), descriptor);
  947    registry
  948        .descriptors_by_type
  949        .insert(TypeId::of::<I>(), descriptor);
  950}
  951
  952pub struct AppState {
  953    pub languages: Arc<LanguageRegistry>,
  954    pub client: Arc<Client>,
  955    pub user_store: Entity<UserStore>,
  956    pub workspace_store: Entity<WorkspaceStore>,
  957    pub fs: Arc<dyn fs::Fs>,
  958    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  959    pub node_runtime: NodeRuntime,
  960    pub session: Entity<AppSession>,
  961}
  962
  963struct GlobalAppState(Weak<AppState>);
  964
  965impl Global for GlobalAppState {}
  966
  967pub struct WorkspaceStore {
  968    workspaces: HashSet<WindowHandle<Workspace>>,
  969    client: Arc<Client>,
  970    _subscriptions: Vec<client::Subscription>,
  971}
  972
  973#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  974pub enum CollaboratorId {
  975    PeerId(PeerId),
  976    Agent,
  977}
  978
  979impl From<PeerId> for CollaboratorId {
  980    fn from(peer_id: PeerId) -> Self {
  981        CollaboratorId::PeerId(peer_id)
  982    }
  983}
  984
  985impl From<&PeerId> for CollaboratorId {
  986    fn from(peer_id: &PeerId) -> Self {
  987        CollaboratorId::PeerId(*peer_id)
  988    }
  989}
  990
  991#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  992struct Follower {
  993    project_id: Option<u64>,
  994    peer_id: PeerId,
  995}
  996
  997impl AppState {
  998    #[track_caller]
  999    pub fn global(cx: &App) -> Weak<Self> {
 1000        cx.global::<GlobalAppState>().0.clone()
 1001    }
 1002    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1003        cx.try_global::<GlobalAppState>()
 1004            .map(|state| state.0.clone())
 1005    }
 1006    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1007        cx.set_global(GlobalAppState(state));
 1008    }
 1009
 1010    #[cfg(any(test, feature = "test-support"))]
 1011    pub fn test(cx: &mut App) -> Arc<Self> {
 1012        use fs::Fs;
 1013        use node_runtime::NodeRuntime;
 1014        use session::Session;
 1015        use settings::SettingsStore;
 1016
 1017        if !cx.has_global::<SettingsStore>() {
 1018            let settings_store = SettingsStore::test(cx);
 1019            cx.set_global(settings_store);
 1020        }
 1021
 1022        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1023        <dyn Fs>::set_global(fs.clone(), cx);
 1024        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1025        let clock = Arc::new(clock::FakeSystemClock::new());
 1026        let http_client = http_client::FakeHttpClient::with_404_response();
 1027        let client = Client::new(clock, http_client, cx);
 1028        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1029        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1030        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1031
 1032        theme::init(theme::LoadThemes::JustBase, cx);
 1033        client::init(&client, cx);
 1034
 1035        Arc::new(Self {
 1036            client,
 1037            fs,
 1038            languages,
 1039            user_store,
 1040            workspace_store,
 1041            node_runtime: NodeRuntime::unavailable(),
 1042            build_window_options: |_, _| Default::default(),
 1043            session,
 1044        })
 1045    }
 1046}
 1047
 1048struct DelayedDebouncedEditAction {
 1049    task: Option<Task<()>>,
 1050    cancel_channel: Option<oneshot::Sender<()>>,
 1051}
 1052
 1053impl DelayedDebouncedEditAction {
 1054    fn new() -> DelayedDebouncedEditAction {
 1055        DelayedDebouncedEditAction {
 1056            task: None,
 1057            cancel_channel: None,
 1058        }
 1059    }
 1060
 1061    fn fire_new<F>(
 1062        &mut self,
 1063        delay: Duration,
 1064        window: &mut Window,
 1065        cx: &mut Context<Workspace>,
 1066        func: F,
 1067    ) where
 1068        F: 'static
 1069            + Send
 1070            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1071    {
 1072        if let Some(channel) = self.cancel_channel.take() {
 1073            _ = channel.send(());
 1074        }
 1075
 1076        let (sender, mut receiver) = oneshot::channel::<()>();
 1077        self.cancel_channel = Some(sender);
 1078
 1079        let previous_task = self.task.take();
 1080        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1081            let mut timer = cx.background_executor().timer(delay).fuse();
 1082            if let Some(previous_task) = previous_task {
 1083                previous_task.await;
 1084            }
 1085
 1086            futures::select_biased! {
 1087                _ = receiver => return,
 1088                    _ = timer => {}
 1089            }
 1090
 1091            if let Some(result) = workspace
 1092                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1093                .log_err()
 1094            {
 1095                result.await.log_err();
 1096            }
 1097        }));
 1098    }
 1099}
 1100
 1101pub enum Event {
 1102    PaneAdded(Entity<Pane>),
 1103    PaneRemoved,
 1104    ItemAdded {
 1105        item: Box<dyn ItemHandle>,
 1106    },
 1107    ActiveItemChanged,
 1108    ItemRemoved {
 1109        item_id: EntityId,
 1110    },
 1111    UserSavedItem {
 1112        pane: WeakEntity<Pane>,
 1113        item: Box<dyn WeakItemHandle>,
 1114        save_intent: SaveIntent,
 1115    },
 1116    ContactRequestedJoin(u64),
 1117    WorkspaceCreated(WeakEntity<Workspace>),
 1118    OpenBundledFile {
 1119        text: Cow<'static, str>,
 1120        title: &'static str,
 1121        language: &'static str,
 1122    },
 1123    ZoomChanged,
 1124    ModalOpened,
 1125}
 1126
 1127#[derive(Debug)]
 1128pub enum OpenVisible {
 1129    All,
 1130    None,
 1131    OnlyFiles,
 1132    OnlyDirectories,
 1133}
 1134
 1135enum WorkspaceLocation {
 1136    // Valid local paths or SSH project to serialize
 1137    Location(SerializedWorkspaceLocation, PathList),
 1138    // No valid location found hence clear session id
 1139    DetachFromSession,
 1140    // No valid location found to serialize
 1141    None,
 1142}
 1143
 1144type PromptForNewPath = Box<
 1145    dyn Fn(
 1146        &mut Workspace,
 1147        DirectoryLister,
 1148        &mut Window,
 1149        &mut Context<Workspace>,
 1150    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1151>;
 1152
 1153type PromptForOpenPath = Box<
 1154    dyn Fn(
 1155        &mut Workspace,
 1156        DirectoryLister,
 1157        &mut Window,
 1158        &mut Context<Workspace>,
 1159    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1160>;
 1161
 1162#[derive(Default)]
 1163struct DispatchingKeystrokes {
 1164    dispatched: HashSet<Vec<Keystroke>>,
 1165    queue: VecDeque<Keystroke>,
 1166    task: Option<Shared<Task<()>>>,
 1167}
 1168
 1169/// Collects everything project-related for a certain window opened.
 1170/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1171///
 1172/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1173/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1174/// that can be used to register a global action to be triggered from any place in the window.
 1175pub struct Workspace {
 1176    weak_self: WeakEntity<Self>,
 1177    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1178    zoomed: Option<AnyWeakView>,
 1179    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1180    zoomed_position: Option<DockPosition>,
 1181    center: PaneGroup,
 1182    left_dock: Entity<Dock>,
 1183    bottom_dock: Entity<Dock>,
 1184    right_dock: Entity<Dock>,
 1185    panes: Vec<Entity<Pane>>,
 1186    active_worktree_override: Option<WorktreeId>,
 1187    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1188    active_pane: Entity<Pane>,
 1189    last_active_center_pane: Option<WeakEntity<Pane>>,
 1190    last_active_view_id: Option<proto::ViewId>,
 1191    status_bar: Entity<StatusBar>,
 1192    modal_layer: Entity<ModalLayer>,
 1193    toast_layer: Entity<ToastLayer>,
 1194    titlebar_item: Option<AnyView>,
 1195    notifications: Notifications,
 1196    suppressed_notifications: HashSet<NotificationId>,
 1197    project: Entity<Project>,
 1198    follower_states: HashMap<CollaboratorId, FollowerState>,
 1199    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1200    window_edited: bool,
 1201    last_window_title: Option<String>,
 1202    dirty_items: HashMap<EntityId, Subscription>,
 1203    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1204    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1205    database_id: Option<WorkspaceId>,
 1206    app_state: Arc<AppState>,
 1207    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1208    _subscriptions: Vec<Subscription>,
 1209    _apply_leader_updates: Task<Result<()>>,
 1210    _observe_current_user: Task<Result<()>>,
 1211    _schedule_serialize_workspace: Option<Task<()>>,
 1212    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1213    pane_history_timestamp: Arc<AtomicUsize>,
 1214    bounds: Bounds<Pixels>,
 1215    pub centered_layout: bool,
 1216    bounds_save_task_queued: Option<Task<()>>,
 1217    on_prompt_for_new_path: Option<PromptForNewPath>,
 1218    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1219    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1220    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1221    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1222    _items_serializer: Task<Result<()>>,
 1223    session_id: Option<String>,
 1224    scheduled_tasks: Vec<Task<()>>,
 1225    last_open_dock_positions: Vec<DockPosition>,
 1226    removing: bool,
 1227    utility_panes: UtilityPaneState,
 1228}
 1229
 1230impl EventEmitter<Event> for Workspace {}
 1231
 1232#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1233pub struct ViewId {
 1234    pub creator: CollaboratorId,
 1235    pub id: u64,
 1236}
 1237
 1238pub struct FollowerState {
 1239    center_pane: Entity<Pane>,
 1240    dock_pane: Option<Entity<Pane>>,
 1241    active_view_id: Option<ViewId>,
 1242    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1243}
 1244
 1245struct FollowerView {
 1246    view: Box<dyn FollowableItemHandle>,
 1247    location: Option<proto::PanelId>,
 1248}
 1249
 1250impl Workspace {
 1251    pub fn new(
 1252        workspace_id: Option<WorkspaceId>,
 1253        project: Entity<Project>,
 1254        app_state: Arc<AppState>,
 1255        window: &mut Window,
 1256        cx: &mut Context<Self>,
 1257    ) -> Self {
 1258        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1259            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1260                if let TrustedWorktreesEvent::Trusted(..) = e {
 1261                    // Do not persist auto trusted worktrees
 1262                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1263                        worktrees_store.update(cx, |worktrees_store, cx| {
 1264                            worktrees_store.schedule_serialization(
 1265                                cx,
 1266                                |new_trusted_worktrees, cx| {
 1267                                    let timeout =
 1268                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1269                                    cx.background_spawn(async move {
 1270                                        timeout.await;
 1271                                        persistence::DB
 1272                                            .save_trusted_worktrees(new_trusted_worktrees)
 1273                                            .await
 1274                                            .log_err();
 1275                                    })
 1276                                },
 1277                            )
 1278                        });
 1279                    }
 1280                }
 1281            })
 1282            .detach();
 1283
 1284            cx.observe_global::<SettingsStore>(|_, cx| {
 1285                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1286                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1287                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1288                            trusted_worktrees.auto_trust_all(cx);
 1289                        })
 1290                    }
 1291                }
 1292            })
 1293            .detach();
 1294        }
 1295
 1296        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1297            match event {
 1298                project::Event::RemoteIdChanged(_) => {
 1299                    this.update_window_title(window, cx);
 1300                }
 1301
 1302                project::Event::CollaboratorLeft(peer_id) => {
 1303                    this.collaborator_left(*peer_id, window, cx);
 1304                }
 1305
 1306                project::Event::WorktreeRemoved(_) => {
 1307                    this.update_worktree_data(window, cx);
 1308                }
 1309
 1310                project::Event::WorktreeUpdatedEntries(..) | project::Event::WorktreeAdded(..) => {
 1311                    this.update_worktree_data(window, cx);
 1312                }
 1313
 1314                project::Event::DisconnectedFromHost => {
 1315                    this.update_window_edited(window, cx);
 1316                    let leaders_to_unfollow =
 1317                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1318                    for leader_id in leaders_to_unfollow {
 1319                        this.unfollow(leader_id, window, cx);
 1320                    }
 1321                }
 1322
 1323                project::Event::DisconnectedFromRemote => {
 1324                    this.update_window_edited(window, cx);
 1325                }
 1326
 1327                project::Event::Closed => {
 1328                    window.remove_window();
 1329                }
 1330
 1331                project::Event::DeletedEntry(_, entry_id) => {
 1332                    for pane in this.panes.iter() {
 1333                        pane.update(cx, |pane, cx| {
 1334                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1335                        });
 1336                    }
 1337                }
 1338
 1339                project::Event::Toast {
 1340                    notification_id,
 1341                    message,
 1342                } => this.show_notification(
 1343                    NotificationId::named(notification_id.clone()),
 1344                    cx,
 1345                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1346                ),
 1347
 1348                project::Event::HideToast { notification_id } => {
 1349                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1350                }
 1351
 1352                project::Event::LanguageServerPrompt(request) => {
 1353                    struct LanguageServerPrompt;
 1354
 1355                    let mut hasher = DefaultHasher::new();
 1356                    request.lsp_name.as_str().hash(&mut hasher);
 1357                    let id = hasher.finish();
 1358
 1359                    this.show_notification(
 1360                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1361                        cx,
 1362                        |cx| {
 1363                            cx.new(|cx| {
 1364                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1365                            })
 1366                        },
 1367                    );
 1368                }
 1369
 1370                project::Event::AgentLocationChanged => {
 1371                    this.handle_agent_location_changed(window, cx)
 1372                }
 1373
 1374                _ => {}
 1375            }
 1376            cx.notify()
 1377        })
 1378        .detach();
 1379
 1380        cx.subscribe_in(
 1381            &project.read(cx).breakpoint_store(),
 1382            window,
 1383            |workspace, _, event, window, cx| match event {
 1384                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1385                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1386                    workspace.serialize_workspace(window, cx);
 1387                }
 1388                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1389            },
 1390        )
 1391        .detach();
 1392        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1393            cx.subscribe_in(
 1394                &toolchain_store,
 1395                window,
 1396                |workspace, _, event, window, cx| match event {
 1397                    ToolchainStoreEvent::CustomToolchainsModified => {
 1398                        workspace.serialize_workspace(window, cx);
 1399                    }
 1400                    _ => {}
 1401                },
 1402            )
 1403            .detach();
 1404        }
 1405
 1406        cx.on_focus_lost(window, |this, window, cx| {
 1407            let focus_handle = this.focus_handle(cx);
 1408            window.focus(&focus_handle, cx);
 1409        })
 1410        .detach();
 1411
 1412        let weak_handle = cx.entity().downgrade();
 1413        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1414
 1415        let center_pane = cx.new(|cx| {
 1416            let mut center_pane = Pane::new(
 1417                weak_handle.clone(),
 1418                project.clone(),
 1419                pane_history_timestamp.clone(),
 1420                None,
 1421                NewFile.boxed_clone(),
 1422                true,
 1423                window,
 1424                cx,
 1425            );
 1426            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1427            center_pane
 1428        });
 1429        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1430            .detach();
 1431
 1432        window.focus(&center_pane.focus_handle(cx), cx);
 1433
 1434        cx.emit(Event::PaneAdded(center_pane.clone()));
 1435
 1436        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1437        app_state.workspace_store.update(cx, |store, _| {
 1438            store.workspaces.insert(window_handle);
 1439        });
 1440
 1441        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1442        let mut connection_status = app_state.client.status();
 1443        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1444            current_user.next().await;
 1445            connection_status.next().await;
 1446            let mut stream =
 1447                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1448
 1449            while stream.recv().await.is_some() {
 1450                this.update(cx, |_, cx| cx.notify())?;
 1451            }
 1452            anyhow::Ok(())
 1453        });
 1454
 1455        // All leader updates are enqueued and then processed in a single task, so
 1456        // that each asynchronous operation can be run in order.
 1457        let (leader_updates_tx, mut leader_updates_rx) =
 1458            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1459        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1460            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1461                Self::process_leader_update(&this, leader_id, update, cx)
 1462                    .await
 1463                    .log_err();
 1464            }
 1465
 1466            Ok(())
 1467        });
 1468
 1469        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1470        let modal_layer = cx.new(|_| ModalLayer::new());
 1471        let toast_layer = cx.new(|_| ToastLayer::new());
 1472        cx.subscribe(
 1473            &modal_layer,
 1474            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1475                cx.emit(Event::ModalOpened);
 1476            },
 1477        )
 1478        .detach();
 1479
 1480        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1481        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1482        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1483        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1484        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1485        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1486        let status_bar = cx.new(|cx| {
 1487            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1488            status_bar.add_left_item(left_dock_buttons, window, cx);
 1489            status_bar.add_right_item(right_dock_buttons, window, cx);
 1490            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1491            status_bar
 1492        });
 1493
 1494        let session_id = app_state.session.read(cx).id().to_owned();
 1495
 1496        let mut active_call = None;
 1497        if let Some(call) = ActiveCall::try_global(cx) {
 1498            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1499            active_call = Some((call, subscriptions));
 1500        }
 1501
 1502        let (serializable_items_tx, serializable_items_rx) =
 1503            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1504        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1505            Self::serialize_items(&this, serializable_items_rx, cx).await
 1506        });
 1507
 1508        let subscriptions = vec![
 1509            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1510            cx.observe_window_bounds(window, move |this, window, cx| {
 1511                if this.bounds_save_task_queued.is_some() {
 1512                    return;
 1513                }
 1514                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1515                    cx.background_executor()
 1516                        .timer(Duration::from_millis(100))
 1517                        .await;
 1518                    this.update_in(cx, |this, window, cx| {
 1519                        if let Some(display) = window.display(cx)
 1520                            && let Ok(display_uuid) = display.uuid()
 1521                        {
 1522                            let window_bounds = window.inner_window_bounds();
 1523                            let has_paths = !this.root_paths(cx).is_empty();
 1524                            if !has_paths {
 1525                                cx.background_executor()
 1526                                    .spawn(persistence::write_default_window_bounds(
 1527                                        window_bounds,
 1528                                        display_uuid,
 1529                                    ))
 1530                                    .detach_and_log_err(cx);
 1531                            }
 1532                            if let Some(database_id) = workspace_id {
 1533                                cx.background_executor()
 1534                                    .spawn(DB.set_window_open_status(
 1535                                        database_id,
 1536                                        SerializedWindowBounds(window_bounds),
 1537                                        display_uuid,
 1538                                    ))
 1539                                    .detach_and_log_err(cx);
 1540                            } else {
 1541                                cx.background_executor()
 1542                                    .spawn(persistence::write_default_window_bounds(
 1543                                        window_bounds,
 1544                                        display_uuid,
 1545                                    ))
 1546                                    .detach_and_log_err(cx);
 1547                            }
 1548                        }
 1549                        this.bounds_save_task_queued.take();
 1550                    })
 1551                    .ok();
 1552                }));
 1553                cx.notify();
 1554            }),
 1555            cx.observe_window_appearance(window, |_, window, cx| {
 1556                let window_appearance = window.appearance();
 1557
 1558                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1559
 1560                GlobalTheme::reload_theme(cx);
 1561                GlobalTheme::reload_icon_theme(cx);
 1562            }),
 1563            cx.on_release(move |this, cx| {
 1564                this.app_state.workspace_store.update(cx, move |store, _| {
 1565                    store.workspaces.remove(&window_handle);
 1566                })
 1567            }),
 1568        ];
 1569
 1570        cx.defer_in(window, move |this, window, cx| {
 1571            this.update_window_title(window, cx);
 1572            this.show_initial_notifications(cx);
 1573        });
 1574
 1575        let mut center = PaneGroup::new(center_pane.clone());
 1576        center.set_is_center(true);
 1577        center.mark_positions(cx);
 1578
 1579        Workspace {
 1580            weak_self: weak_handle.clone(),
 1581            zoomed: None,
 1582            zoomed_position: None,
 1583            previous_dock_drag_coordinates: None,
 1584            center,
 1585            panes: vec![center_pane.clone()],
 1586            panes_by_item: Default::default(),
 1587            active_pane: center_pane.clone(),
 1588            last_active_center_pane: Some(center_pane.downgrade()),
 1589            last_active_view_id: None,
 1590            status_bar,
 1591            modal_layer,
 1592            toast_layer,
 1593            titlebar_item: None,
 1594            active_worktree_override: None,
 1595            notifications: Notifications::default(),
 1596            suppressed_notifications: HashSet::default(),
 1597            left_dock,
 1598            bottom_dock,
 1599            right_dock,
 1600            project: project.clone(),
 1601            follower_states: Default::default(),
 1602            last_leaders_by_pane: Default::default(),
 1603            dispatching_keystrokes: Default::default(),
 1604            window_edited: false,
 1605            last_window_title: None,
 1606            dirty_items: Default::default(),
 1607            active_call,
 1608            database_id: workspace_id,
 1609            app_state,
 1610            _observe_current_user,
 1611            _apply_leader_updates,
 1612            _schedule_serialize_workspace: None,
 1613            _schedule_serialize_ssh_paths: None,
 1614            leader_updates_tx,
 1615            _subscriptions: subscriptions,
 1616            pane_history_timestamp,
 1617            workspace_actions: Default::default(),
 1618            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1619            bounds: Default::default(),
 1620            centered_layout: false,
 1621            bounds_save_task_queued: None,
 1622            on_prompt_for_new_path: None,
 1623            on_prompt_for_open_path: None,
 1624            terminal_provider: None,
 1625            debugger_provider: None,
 1626            serializable_items_tx,
 1627            _items_serializer,
 1628            session_id: Some(session_id),
 1629
 1630            scheduled_tasks: Vec::new(),
 1631            last_open_dock_positions: Vec::new(),
 1632            removing: false,
 1633            utility_panes: UtilityPaneState::default(),
 1634        }
 1635    }
 1636
 1637    pub fn new_local(
 1638        abs_paths: Vec<PathBuf>,
 1639        app_state: Arc<AppState>,
 1640        requesting_window: Option<WindowHandle<Workspace>>,
 1641        env: Option<HashMap<String, String>>,
 1642        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1643        cx: &mut App,
 1644    ) -> Task<
 1645        anyhow::Result<(
 1646            WindowHandle<Workspace>,
 1647            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1648        )>,
 1649    > {
 1650        let project_handle = Project::local(
 1651            app_state.client.clone(),
 1652            app_state.node_runtime.clone(),
 1653            app_state.user_store.clone(),
 1654            app_state.languages.clone(),
 1655            app_state.fs.clone(),
 1656            env,
 1657            true,
 1658            cx,
 1659        );
 1660
 1661        cx.spawn(async move |cx| {
 1662            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1663            for path in abs_paths.into_iter() {
 1664                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1665                    paths_to_open.push(canonical)
 1666                } else {
 1667                    paths_to_open.push(path)
 1668                }
 1669            }
 1670
 1671            let serialized_workspace =
 1672                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1673
 1674            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1675                paths_to_open = paths.ordered_paths().cloned().collect();
 1676                if !paths.is_lexicographically_ordered() {
 1677                    project_handle.update(cx, |project, cx| {
 1678                        project.set_worktrees_reordered(true, cx);
 1679                    });
 1680                }
 1681            }
 1682
 1683            // Get project paths for all of the abs_paths
 1684            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1685                Vec::with_capacity(paths_to_open.len());
 1686
 1687            for path in paths_to_open.into_iter() {
 1688                if let Some((_, project_entry)) = cx
 1689                    .update(|cx| {
 1690                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1691                    })
 1692                    .await
 1693                    .log_err()
 1694                {
 1695                    project_paths.push((path, Some(project_entry)));
 1696                } else {
 1697                    project_paths.push((path, None));
 1698                }
 1699            }
 1700
 1701            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1702                serialized_workspace.id
 1703            } else {
 1704                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1705            };
 1706
 1707            let toolchains = DB.toolchains(workspace_id).await?;
 1708
 1709            for (toolchain, worktree_path, path) in toolchains {
 1710                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1711                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1712                    this.find_worktree(&worktree_path, cx)
 1713                        .and_then(|(worktree, rel_path)| {
 1714                            if rel_path.is_empty() {
 1715                                Some(worktree.read(cx).id())
 1716                            } else {
 1717                                None
 1718                            }
 1719                        })
 1720                }) else {
 1721                    // We did not find a worktree with a given path, but that's whatever.
 1722                    continue;
 1723                };
 1724                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1725                    continue;
 1726                }
 1727
 1728                project_handle
 1729                    .update(cx, |this, cx| {
 1730                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1731                    })
 1732                    .await;
 1733            }
 1734            if let Some(workspace) = serialized_workspace.as_ref() {
 1735                project_handle.update(cx, |this, cx| {
 1736                    for (scope, toolchains) in &workspace.user_toolchains {
 1737                        for toolchain in toolchains {
 1738                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1739                        }
 1740                    }
 1741                });
 1742            }
 1743
 1744            let window = if let Some(window) = requesting_window {
 1745                let centered_layout = serialized_workspace
 1746                    .as_ref()
 1747                    .map(|w| w.centered_layout)
 1748                    .unwrap_or(false);
 1749
 1750                cx.update_window(window.into(), |_, window, cx| {
 1751                    window.replace_root(cx, |window, cx| {
 1752                        let mut workspace = Workspace::new(
 1753                            Some(workspace_id),
 1754                            project_handle.clone(),
 1755                            app_state.clone(),
 1756                            window,
 1757                            cx,
 1758                        );
 1759
 1760                        workspace.centered_layout = centered_layout;
 1761
 1762                        // Call init callback to add items before window renders
 1763                        if let Some(init) = init {
 1764                            init(&mut workspace, window, cx);
 1765                        }
 1766
 1767                        workspace
 1768                    });
 1769                })?;
 1770                window
 1771            } else {
 1772                let window_bounds_override = window_bounds_env_override();
 1773
 1774                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1775                    (Some(WindowBounds::Windowed(bounds)), None)
 1776                } else if let Some(workspace) = serialized_workspace.as_ref()
 1777                    && let Some(display) = workspace.display
 1778                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1779                {
 1780                    // Reopening an existing workspace - restore its saved bounds
 1781                    (Some(bounds.0), Some(display))
 1782                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1783                    // New or empty workspace - use the last known window bounds
 1784                    (Some(bounds), Some(display))
 1785                } else {
 1786                    // New window - let GPUI's default_bounds() handle cascading
 1787                    (None, None)
 1788                };
 1789
 1790                // Use the serialized workspace to construct the new window
 1791                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1792                options.window_bounds = window_bounds;
 1793                let centered_layout = serialized_workspace
 1794                    .as_ref()
 1795                    .map(|w| w.centered_layout)
 1796                    .unwrap_or(false);
 1797                cx.open_window(options, {
 1798                    let app_state = app_state.clone();
 1799                    let project_handle = project_handle.clone();
 1800                    move |window, cx| {
 1801                        cx.new(|cx| {
 1802                            let mut workspace = Workspace::new(
 1803                                Some(workspace_id),
 1804                                project_handle,
 1805                                app_state,
 1806                                window,
 1807                                cx,
 1808                            );
 1809                            workspace.centered_layout = centered_layout;
 1810
 1811                            // Call init callback to add items before window renders
 1812                            if let Some(init) = init {
 1813                                init(&mut workspace, window, cx);
 1814                            }
 1815
 1816                            workspace
 1817                        })
 1818                    }
 1819                })?
 1820            };
 1821
 1822            notify_if_database_failed(window, cx);
 1823            let opened_items = window
 1824                .update(cx, |_workspace, window, cx| {
 1825                    open_items(serialized_workspace, project_paths, window, cx)
 1826                })?
 1827                .await
 1828                .unwrap_or_default();
 1829
 1830            window
 1831                .update(cx, |workspace, window, cx| {
 1832                    window.activate_window();
 1833                    workspace.update_history(cx);
 1834                })
 1835                .log_err();
 1836            Ok((window, opened_items))
 1837        })
 1838    }
 1839
 1840    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1841        self.weak_self.clone()
 1842    }
 1843
 1844    pub fn left_dock(&self) -> &Entity<Dock> {
 1845        &self.left_dock
 1846    }
 1847
 1848    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1849        &self.bottom_dock
 1850    }
 1851
 1852    pub fn set_bottom_dock_layout(
 1853        &mut self,
 1854        layout: BottomDockLayout,
 1855        window: &mut Window,
 1856        cx: &mut Context<Self>,
 1857    ) {
 1858        let fs = self.project().read(cx).fs();
 1859        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1860            content.workspace.bottom_dock_layout = Some(layout);
 1861        });
 1862
 1863        cx.notify();
 1864        self.serialize_workspace(window, cx);
 1865    }
 1866
 1867    pub fn right_dock(&self) -> &Entity<Dock> {
 1868        &self.right_dock
 1869    }
 1870
 1871    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1872        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1873    }
 1874
 1875    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1876        match position {
 1877            DockPosition::Left => &self.left_dock,
 1878            DockPosition::Bottom => &self.bottom_dock,
 1879            DockPosition::Right => &self.right_dock,
 1880        }
 1881    }
 1882
 1883    pub fn is_edited(&self) -> bool {
 1884        self.window_edited
 1885    }
 1886
 1887    pub fn add_panel<T: Panel>(
 1888        &mut self,
 1889        panel: Entity<T>,
 1890        window: &mut Window,
 1891        cx: &mut Context<Self>,
 1892    ) {
 1893        let focus_handle = panel.panel_focus_handle(cx);
 1894        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1895            .detach();
 1896
 1897        let dock_position = panel.position(window, cx);
 1898        let dock = self.dock_at_position(dock_position);
 1899
 1900        dock.update(cx, |dock, cx| {
 1901            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1902        });
 1903    }
 1904
 1905    pub fn remove_panel<T: Panel>(
 1906        &mut self,
 1907        panel: &Entity<T>,
 1908        window: &mut Window,
 1909        cx: &mut Context<Self>,
 1910    ) {
 1911        let mut found_in_dock = None;
 1912        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1913            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1914
 1915            if found {
 1916                found_in_dock = Some(dock.clone());
 1917            }
 1918        }
 1919        if let Some(found_in_dock) = found_in_dock {
 1920            let position = found_in_dock.read(cx).position();
 1921            let slot = utility_slot_for_dock_position(position);
 1922            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1923        }
 1924    }
 1925
 1926    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1927        &self.status_bar
 1928    }
 1929
 1930    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1931        StatusBarSettings::get_global(cx).show
 1932    }
 1933
 1934    pub fn app_state(&self) -> &Arc<AppState> {
 1935        &self.app_state
 1936    }
 1937
 1938    pub fn user_store(&self) -> &Entity<UserStore> {
 1939        &self.app_state.user_store
 1940    }
 1941
 1942    pub fn project(&self) -> &Entity<Project> {
 1943        &self.project
 1944    }
 1945
 1946    pub fn path_style(&self, cx: &App) -> PathStyle {
 1947        self.project.read(cx).path_style(cx)
 1948    }
 1949
 1950    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1951        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1952
 1953        for pane_handle in &self.panes {
 1954            let pane = pane_handle.read(cx);
 1955
 1956            for entry in pane.activation_history() {
 1957                history.insert(
 1958                    entry.entity_id,
 1959                    history
 1960                        .get(&entry.entity_id)
 1961                        .cloned()
 1962                        .unwrap_or(0)
 1963                        .max(entry.timestamp),
 1964                );
 1965            }
 1966        }
 1967
 1968        history
 1969    }
 1970
 1971    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1972        let mut recent_item: Option<Entity<T>> = None;
 1973        let mut recent_timestamp = 0;
 1974        for pane_handle in &self.panes {
 1975            let pane = pane_handle.read(cx);
 1976            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1977                pane.items().map(|item| (item.item_id(), item)).collect();
 1978            for entry in pane.activation_history() {
 1979                if entry.timestamp > recent_timestamp
 1980                    && let Some(&item) = item_map.get(&entry.entity_id)
 1981                    && let Some(typed_item) = item.act_as::<T>(cx)
 1982                {
 1983                    recent_timestamp = entry.timestamp;
 1984                    recent_item = Some(typed_item);
 1985                }
 1986            }
 1987        }
 1988        recent_item
 1989    }
 1990
 1991    pub fn recent_navigation_history_iter(
 1992        &self,
 1993        cx: &App,
 1994    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1995        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1996        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1997
 1998        for pane in &self.panes {
 1999            let pane = pane.read(cx);
 2000
 2001            pane.nav_history()
 2002                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2003                    if let Some(fs_path) = &fs_path {
 2004                        abs_paths_opened
 2005                            .entry(fs_path.clone())
 2006                            .or_default()
 2007                            .insert(project_path.clone());
 2008                    }
 2009                    let timestamp = entry.timestamp;
 2010                    match history.entry(project_path) {
 2011                        hash_map::Entry::Occupied(mut entry) => {
 2012                            let (_, old_timestamp) = entry.get();
 2013                            if &timestamp > old_timestamp {
 2014                                entry.insert((fs_path, timestamp));
 2015                            }
 2016                        }
 2017                        hash_map::Entry::Vacant(entry) => {
 2018                            entry.insert((fs_path, timestamp));
 2019                        }
 2020                    }
 2021                });
 2022
 2023            if let Some(item) = pane.active_item()
 2024                && let Some(project_path) = item.project_path(cx)
 2025            {
 2026                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2027
 2028                if let Some(fs_path) = &fs_path {
 2029                    abs_paths_opened
 2030                        .entry(fs_path.clone())
 2031                        .or_default()
 2032                        .insert(project_path.clone());
 2033                }
 2034
 2035                history.insert(project_path, (fs_path, std::usize::MAX));
 2036            }
 2037        }
 2038
 2039        history
 2040            .into_iter()
 2041            .sorted_by_key(|(_, (_, order))| *order)
 2042            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2043            .rev()
 2044            .filter(move |(history_path, abs_path)| {
 2045                let latest_project_path_opened = abs_path
 2046                    .as_ref()
 2047                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2048                    .and_then(|project_paths| {
 2049                        project_paths
 2050                            .iter()
 2051                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2052                    });
 2053
 2054                latest_project_path_opened.is_none_or(|path| path == history_path)
 2055            })
 2056    }
 2057
 2058    pub fn recent_navigation_history(
 2059        &self,
 2060        limit: Option<usize>,
 2061        cx: &App,
 2062    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2063        self.recent_navigation_history_iter(cx)
 2064            .take(limit.unwrap_or(usize::MAX))
 2065            .collect()
 2066    }
 2067
 2068    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2069        for pane in &self.panes {
 2070            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2071        }
 2072    }
 2073
 2074    fn navigate_history(
 2075        &mut self,
 2076        pane: WeakEntity<Pane>,
 2077        mode: NavigationMode,
 2078        window: &mut Window,
 2079        cx: &mut Context<Workspace>,
 2080    ) -> Task<Result<()>> {
 2081        let to_load = if let Some(pane) = pane.upgrade() {
 2082            pane.update(cx, |pane, cx| {
 2083                window.focus(&pane.focus_handle(cx), cx);
 2084                loop {
 2085                    // Retrieve the weak item handle from the history.
 2086                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2087
 2088                    // If the item is still present in this pane, then activate it.
 2089                    if let Some(index) = entry
 2090                        .item
 2091                        .upgrade()
 2092                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2093                    {
 2094                        let prev_active_item_index = pane.active_item_index();
 2095                        pane.nav_history_mut().set_mode(mode);
 2096                        pane.activate_item(index, true, true, window, cx);
 2097                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2098
 2099                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2100                        if let Some(data) = entry.data {
 2101                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2102                        }
 2103
 2104                        if navigated {
 2105                            break None;
 2106                        }
 2107                    } else {
 2108                        // If the item is no longer present in this pane, then retrieve its
 2109                        // path info in order to reopen it.
 2110                        break pane
 2111                            .nav_history()
 2112                            .path_for_item(entry.item.id())
 2113                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2114                    }
 2115                }
 2116            })
 2117        } else {
 2118            None
 2119        };
 2120
 2121        if let Some((project_path, abs_path, entry)) = to_load {
 2122            // If the item was no longer present, then load it again from its previous path, first try the local path
 2123            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2124
 2125            cx.spawn_in(window, async move  |workspace, cx| {
 2126                let open_by_project_path = open_by_project_path.await;
 2127                let mut navigated = false;
 2128                match open_by_project_path
 2129                    .with_context(|| format!("Navigating to {project_path:?}"))
 2130                {
 2131                    Ok((project_entry_id, build_item)) => {
 2132                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2133                            pane.nav_history_mut().set_mode(mode);
 2134                            pane.active_item().map(|p| p.item_id())
 2135                        })?;
 2136
 2137                        pane.update_in(cx, |pane, window, cx| {
 2138                            let item = pane.open_item(
 2139                                project_entry_id,
 2140                                project_path,
 2141                                true,
 2142                                entry.is_preview,
 2143                                true,
 2144                                None,
 2145                                window, cx,
 2146                                build_item,
 2147                            );
 2148                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2149                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2150                            if let Some(data) = entry.data {
 2151                                navigated |= item.navigate(data, window, cx);
 2152                            }
 2153                        })?;
 2154                    }
 2155                    Err(open_by_project_path_e) => {
 2156                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2157                        // and its worktree is now dropped
 2158                        if let Some(abs_path) = abs_path {
 2159                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2160                                pane.nav_history_mut().set_mode(mode);
 2161                                pane.active_item().map(|p| p.item_id())
 2162                            })?;
 2163                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2164                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2165                            })?;
 2166                            match open_by_abs_path
 2167                                .await
 2168                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2169                            {
 2170                                Ok(item) => {
 2171                                    pane.update_in(cx, |pane, window, cx| {
 2172                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2173                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2174                                        if let Some(data) = entry.data {
 2175                                            navigated |= item.navigate(data, window, cx);
 2176                                        }
 2177                                    })?;
 2178                                }
 2179                                Err(open_by_abs_path_e) => {
 2180                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2181                                }
 2182                            }
 2183                        }
 2184                    }
 2185                }
 2186
 2187                if !navigated {
 2188                    workspace
 2189                        .update_in(cx, |workspace, window, cx| {
 2190                            Self::navigate_history(workspace, pane, mode, window, cx)
 2191                        })?
 2192                        .await?;
 2193                }
 2194
 2195                Ok(())
 2196            })
 2197        } else {
 2198            Task::ready(Ok(()))
 2199        }
 2200    }
 2201
 2202    pub fn go_back(
 2203        &mut self,
 2204        pane: WeakEntity<Pane>,
 2205        window: &mut Window,
 2206        cx: &mut Context<Workspace>,
 2207    ) -> Task<Result<()>> {
 2208        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2209    }
 2210
 2211    pub fn go_forward(
 2212        &mut self,
 2213        pane: WeakEntity<Pane>,
 2214        window: &mut Window,
 2215        cx: &mut Context<Workspace>,
 2216    ) -> Task<Result<()>> {
 2217        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2218    }
 2219
 2220    pub fn reopen_closed_item(
 2221        &mut self,
 2222        window: &mut Window,
 2223        cx: &mut Context<Workspace>,
 2224    ) -> Task<Result<()>> {
 2225        self.navigate_history(
 2226            self.active_pane().downgrade(),
 2227            NavigationMode::ReopeningClosedItem,
 2228            window,
 2229            cx,
 2230        )
 2231    }
 2232
 2233    pub fn client(&self) -> &Arc<Client> {
 2234        &self.app_state.client
 2235    }
 2236
 2237    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2238        self.titlebar_item = Some(item);
 2239        cx.notify();
 2240    }
 2241
 2242    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2243        self.on_prompt_for_new_path = Some(prompt)
 2244    }
 2245
 2246    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2247        self.on_prompt_for_open_path = Some(prompt)
 2248    }
 2249
 2250    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2251        self.terminal_provider = Some(Box::new(provider));
 2252    }
 2253
 2254    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2255        self.debugger_provider = Some(Arc::new(provider));
 2256    }
 2257
 2258    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2259        self.debugger_provider.clone()
 2260    }
 2261
 2262    pub fn prompt_for_open_path(
 2263        &mut self,
 2264        path_prompt_options: PathPromptOptions,
 2265        lister: DirectoryLister,
 2266        window: &mut Window,
 2267        cx: &mut Context<Self>,
 2268    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2269        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2270            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2271            let rx = prompt(self, lister, window, cx);
 2272            self.on_prompt_for_open_path = Some(prompt);
 2273            rx
 2274        } else {
 2275            let (tx, rx) = oneshot::channel();
 2276            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2277
 2278            cx.spawn_in(window, async move |workspace, cx| {
 2279                let Ok(result) = abs_path.await else {
 2280                    return Ok(());
 2281                };
 2282
 2283                match result {
 2284                    Ok(result) => {
 2285                        tx.send(result).ok();
 2286                    }
 2287                    Err(err) => {
 2288                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2289                            workspace.show_portal_error(err.to_string(), cx);
 2290                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2291                            let rx = prompt(workspace, lister, window, cx);
 2292                            workspace.on_prompt_for_open_path = Some(prompt);
 2293                            rx
 2294                        })?;
 2295                        if let Ok(path) = rx.await {
 2296                            tx.send(path).ok();
 2297                        }
 2298                    }
 2299                };
 2300                anyhow::Ok(())
 2301            })
 2302            .detach();
 2303
 2304            rx
 2305        }
 2306    }
 2307
 2308    pub fn prompt_for_new_path(
 2309        &mut self,
 2310        lister: DirectoryLister,
 2311        suggested_name: Option<String>,
 2312        window: &mut Window,
 2313        cx: &mut Context<Self>,
 2314    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2315        if self.project.read(cx).is_via_collab()
 2316            || self.project.read(cx).is_via_remote_server()
 2317            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2318        {
 2319            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2320            let rx = prompt(self, lister, window, cx);
 2321            self.on_prompt_for_new_path = Some(prompt);
 2322            return rx;
 2323        }
 2324
 2325        let (tx, rx) = oneshot::channel();
 2326        cx.spawn_in(window, async move |workspace, cx| {
 2327            let abs_path = workspace.update(cx, |workspace, cx| {
 2328                let relative_to = workspace
 2329                    .most_recent_active_path(cx)
 2330                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2331                    .or_else(|| {
 2332                        let project = workspace.project.read(cx);
 2333                        project.visible_worktrees(cx).find_map(|worktree| {
 2334                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2335                        })
 2336                    })
 2337                    .or_else(std::env::home_dir)
 2338                    .unwrap_or_else(|| PathBuf::from(""));
 2339                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2340            })?;
 2341            let abs_path = match abs_path.await? {
 2342                Ok(path) => path,
 2343                Err(err) => {
 2344                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2345                        workspace.show_portal_error(err.to_string(), cx);
 2346
 2347                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2348                        let rx = prompt(workspace, lister, window, cx);
 2349                        workspace.on_prompt_for_new_path = Some(prompt);
 2350                        rx
 2351                    })?;
 2352                    if let Ok(path) = rx.await {
 2353                        tx.send(path).ok();
 2354                    }
 2355                    return anyhow::Ok(());
 2356                }
 2357            };
 2358
 2359            tx.send(abs_path.map(|path| vec![path])).ok();
 2360            anyhow::Ok(())
 2361        })
 2362        .detach();
 2363
 2364        rx
 2365    }
 2366
 2367    pub fn titlebar_item(&self) -> Option<AnyView> {
 2368        self.titlebar_item.clone()
 2369    }
 2370
 2371    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2372    /// When set, git-related operations should use this worktree instead of deriving
 2373    /// the active worktree from the focused file.
 2374    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2375        self.active_worktree_override
 2376    }
 2377
 2378    pub fn set_active_worktree_override(
 2379        &mut self,
 2380        worktree_id: Option<WorktreeId>,
 2381        cx: &mut Context<Self>,
 2382    ) {
 2383        self.active_worktree_override = worktree_id;
 2384        cx.notify();
 2385    }
 2386
 2387    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2388        self.active_worktree_override = None;
 2389        cx.notify();
 2390    }
 2391
 2392    /// Call the given callback with a workspace whose project is local.
 2393    ///
 2394    /// If the given workspace has a local project, then it will be passed
 2395    /// to the callback. Otherwise, a new empty window will be created.
 2396    pub fn with_local_workspace<T, F>(
 2397        &mut self,
 2398        window: &mut Window,
 2399        cx: &mut Context<Self>,
 2400        callback: F,
 2401    ) -> Task<Result<T>>
 2402    where
 2403        T: 'static,
 2404        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2405    {
 2406        if self.project.read(cx).is_local() {
 2407            Task::ready(Ok(callback(self, window, cx)))
 2408        } else {
 2409            let env = self.project.read(cx).cli_environment(cx);
 2410            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2411            cx.spawn_in(window, async move |_vh, cx| {
 2412                let (workspace, _) = task.await?;
 2413                workspace.update(cx, callback)
 2414            })
 2415        }
 2416    }
 2417
 2418    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2419        self.project.read(cx).worktrees(cx)
 2420    }
 2421
 2422    pub fn visible_worktrees<'a>(
 2423        &self,
 2424        cx: &'a App,
 2425    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2426        self.project.read(cx).visible_worktrees(cx)
 2427    }
 2428
 2429    #[cfg(any(test, feature = "test-support"))]
 2430    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2431        let futures = self
 2432            .worktrees(cx)
 2433            .filter_map(|worktree| worktree.read(cx).as_local())
 2434            .map(|worktree| worktree.scan_complete())
 2435            .collect::<Vec<_>>();
 2436        async move {
 2437            for future in futures {
 2438                future.await;
 2439            }
 2440        }
 2441    }
 2442
 2443    pub fn close_global(cx: &mut App) {
 2444        cx.defer(|cx| {
 2445            cx.windows().iter().find(|window| {
 2446                window
 2447                    .update(cx, |_, window, _| {
 2448                        if window.is_window_active() {
 2449                            //This can only get called when the window's project connection has been lost
 2450                            //so we don't need to prompt the user for anything and instead just close the window
 2451                            window.remove_window();
 2452                            true
 2453                        } else {
 2454                            false
 2455                        }
 2456                    })
 2457                    .unwrap_or(false)
 2458            });
 2459        });
 2460    }
 2461
 2462    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2463        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2464        cx.spawn_in(window, async move |_, cx| {
 2465            if prepare.await? {
 2466                cx.update(|window, _cx| window.remove_window())?;
 2467            }
 2468            anyhow::Ok(())
 2469        })
 2470        .detach_and_log_err(cx)
 2471    }
 2472
 2473    pub fn move_focused_panel_to_next_position(
 2474        &mut self,
 2475        _: &MoveFocusedPanelToNextPosition,
 2476        window: &mut Window,
 2477        cx: &mut Context<Self>,
 2478    ) {
 2479        let docks = self.all_docks();
 2480        let active_dock = docks
 2481            .into_iter()
 2482            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2483
 2484        if let Some(dock) = active_dock {
 2485            dock.update(cx, |dock, cx| {
 2486                let active_panel = dock
 2487                    .active_panel()
 2488                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2489
 2490                if let Some(panel) = active_panel {
 2491                    panel.move_to_next_position(window, cx);
 2492                }
 2493            })
 2494        }
 2495    }
 2496
 2497    pub fn prepare_to_close(
 2498        &mut self,
 2499        close_intent: CloseIntent,
 2500        window: &mut Window,
 2501        cx: &mut Context<Self>,
 2502    ) -> Task<Result<bool>> {
 2503        let active_call = self.active_call().cloned();
 2504
 2505        cx.spawn_in(window, async move |this, cx| {
 2506            this.update(cx, |this, _| {
 2507                if close_intent == CloseIntent::CloseWindow {
 2508                    this.removing = true;
 2509                }
 2510            })?;
 2511
 2512            let workspace_count = cx.update(|_window, cx| {
 2513                cx.windows()
 2514                    .iter()
 2515                    .filter(|window| window.downcast::<Workspace>().is_some())
 2516                    .count()
 2517            })?;
 2518
 2519            #[cfg(target_os = "macos")]
 2520            let save_last_workspace = false;
 2521
 2522            // On Linux and Windows, closing the last window should restore the last workspace.
 2523            #[cfg(not(target_os = "macos"))]
 2524            let save_last_workspace = {
 2525                let remaining_workspaces = cx.update(|_window, cx| {
 2526                    cx.windows()
 2527                        .iter()
 2528                        .filter_map(|window| window.downcast::<Workspace>())
 2529                        .filter_map(|workspace| {
 2530                            workspace
 2531                                .update(cx, |workspace, _, _| workspace.removing)
 2532                                .ok()
 2533                        })
 2534                        .filter(|removing| !removing)
 2535                        .count()
 2536                })?;
 2537
 2538                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2539            };
 2540
 2541            if let Some(active_call) = active_call
 2542                && workspace_count == 1
 2543                && active_call.read_with(cx, |call, _| call.room().is_some())
 2544            {
 2545                if close_intent == CloseIntent::CloseWindow {
 2546                    let answer = cx.update(|window, cx| {
 2547                        window.prompt(
 2548                            PromptLevel::Warning,
 2549                            "Do you want to leave the current call?",
 2550                            None,
 2551                            &["Close window and hang up", "Cancel"],
 2552                            cx,
 2553                        )
 2554                    })?;
 2555
 2556                    if answer.await.log_err() == Some(1) {
 2557                        return anyhow::Ok(false);
 2558                    } else {
 2559                        active_call
 2560                            .update(cx, |call, cx| call.hang_up(cx))
 2561                            .await
 2562                            .log_err();
 2563                    }
 2564                }
 2565                if close_intent == CloseIntent::ReplaceWindow {
 2566                    _ = active_call.update(cx, |this, cx| {
 2567                        let workspace = cx
 2568                            .windows()
 2569                            .iter()
 2570                            .filter_map(|window| window.downcast::<Workspace>())
 2571                            .next()
 2572                            .unwrap();
 2573                        let project = workspace.read(cx)?.project.clone();
 2574                        if project.read(cx).is_shared() {
 2575                            this.unshare_project(project, cx)?;
 2576                        }
 2577                        Ok::<_, anyhow::Error>(())
 2578                    })?;
 2579                }
 2580            }
 2581
 2582            let save_result = this
 2583                .update_in(cx, |this, window, cx| {
 2584                    this.save_all_internal(SaveIntent::Close, window, cx)
 2585                })?
 2586                .await;
 2587
 2588            // If we're not quitting, but closing, we remove the workspace from
 2589            // the current session.
 2590            if close_intent != CloseIntent::Quit
 2591                && !save_last_workspace
 2592                && save_result.as_ref().is_ok_and(|&res| res)
 2593            {
 2594                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2595                    .await;
 2596            }
 2597
 2598            save_result
 2599        })
 2600    }
 2601
 2602    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2603        self.save_all_internal(
 2604            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2605            window,
 2606            cx,
 2607        )
 2608        .detach_and_log_err(cx);
 2609    }
 2610
 2611    fn send_keystrokes(
 2612        &mut self,
 2613        action: &SendKeystrokes,
 2614        window: &mut Window,
 2615        cx: &mut Context<Self>,
 2616    ) {
 2617        let keystrokes: Vec<Keystroke> = action
 2618            .0
 2619            .split(' ')
 2620            .flat_map(|k| Keystroke::parse(k).log_err())
 2621            .map(|k| {
 2622                cx.keyboard_mapper()
 2623                    .map_key_equivalent(k, true)
 2624                    .inner()
 2625                    .clone()
 2626            })
 2627            .collect();
 2628        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2629    }
 2630
 2631    pub fn send_keystrokes_impl(
 2632        &mut self,
 2633        keystrokes: Vec<Keystroke>,
 2634        window: &mut Window,
 2635        cx: &mut Context<Self>,
 2636    ) -> Shared<Task<()>> {
 2637        let mut state = self.dispatching_keystrokes.borrow_mut();
 2638        if !state.dispatched.insert(keystrokes.clone()) {
 2639            cx.propagate();
 2640            return state.task.clone().unwrap();
 2641        }
 2642
 2643        state.queue.extend(keystrokes);
 2644
 2645        let keystrokes = self.dispatching_keystrokes.clone();
 2646        if state.task.is_none() {
 2647            state.task = Some(
 2648                window
 2649                    .spawn(cx, async move |cx| {
 2650                        // limit to 100 keystrokes to avoid infinite recursion.
 2651                        for _ in 0..100 {
 2652                            let mut state = keystrokes.borrow_mut();
 2653                            let Some(keystroke) = state.queue.pop_front() else {
 2654                                state.dispatched.clear();
 2655                                state.task.take();
 2656                                return;
 2657                            };
 2658                            drop(state);
 2659                            cx.update(|window, cx| {
 2660                                let focused = window.focused(cx);
 2661                                window.dispatch_keystroke(keystroke.clone(), cx);
 2662                                if window.focused(cx) != focused {
 2663                                    // dispatch_keystroke may cause the focus to change.
 2664                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2665                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2666                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2667                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2668                                    // )
 2669                                    window.draw(cx).clear();
 2670                                }
 2671                            })
 2672                            .ok();
 2673                        }
 2674
 2675                        *keystrokes.borrow_mut() = Default::default();
 2676                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2677                    })
 2678                    .shared(),
 2679            );
 2680        }
 2681        state.task.clone().unwrap()
 2682    }
 2683
 2684    fn save_all_internal(
 2685        &mut self,
 2686        mut save_intent: SaveIntent,
 2687        window: &mut Window,
 2688        cx: &mut Context<Self>,
 2689    ) -> Task<Result<bool>> {
 2690        if self.project.read(cx).is_disconnected(cx) {
 2691            return Task::ready(Ok(true));
 2692        }
 2693        let dirty_items = self
 2694            .panes
 2695            .iter()
 2696            .flat_map(|pane| {
 2697                pane.read(cx).items().filter_map(|item| {
 2698                    if item.is_dirty(cx) {
 2699                        item.tab_content_text(0, cx);
 2700                        Some((pane.downgrade(), item.boxed_clone()))
 2701                    } else {
 2702                        None
 2703                    }
 2704                })
 2705            })
 2706            .collect::<Vec<_>>();
 2707
 2708        let project = self.project.clone();
 2709        cx.spawn_in(window, async move |workspace, cx| {
 2710            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2711                let (serialize_tasks, remaining_dirty_items) =
 2712                    workspace.update_in(cx, |workspace, window, cx| {
 2713                        let mut remaining_dirty_items = Vec::new();
 2714                        let mut serialize_tasks = Vec::new();
 2715                        for (pane, item) in dirty_items {
 2716                            if let Some(task) = item
 2717                                .to_serializable_item_handle(cx)
 2718                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2719                            {
 2720                                serialize_tasks.push(task);
 2721                            } else {
 2722                                remaining_dirty_items.push((pane, item));
 2723                            }
 2724                        }
 2725                        (serialize_tasks, remaining_dirty_items)
 2726                    })?;
 2727
 2728                futures::future::try_join_all(serialize_tasks).await?;
 2729
 2730                if remaining_dirty_items.len() > 1 {
 2731                    let answer = workspace.update_in(cx, |_, window, cx| {
 2732                        let detail = Pane::file_names_for_prompt(
 2733                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2734                            cx,
 2735                        );
 2736                        window.prompt(
 2737                            PromptLevel::Warning,
 2738                            "Do you want to save all changes in the following files?",
 2739                            Some(&detail),
 2740                            &["Save all", "Discard all", "Cancel"],
 2741                            cx,
 2742                        )
 2743                    })?;
 2744                    match answer.await.log_err() {
 2745                        Some(0) => save_intent = SaveIntent::SaveAll,
 2746                        Some(1) => save_intent = SaveIntent::Skip,
 2747                        Some(2) => return Ok(false),
 2748                        _ => {}
 2749                    }
 2750                }
 2751
 2752                remaining_dirty_items
 2753            } else {
 2754                dirty_items
 2755            };
 2756
 2757            for (pane, item) in dirty_items {
 2758                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2759                    (
 2760                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2761                        item.project_entry_ids(cx),
 2762                    )
 2763                })?;
 2764                if (singleton || !project_entry_ids.is_empty())
 2765                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2766                {
 2767                    return Ok(false);
 2768                }
 2769            }
 2770            Ok(true)
 2771        })
 2772    }
 2773
 2774    pub fn open_workspace_for_paths(
 2775        &mut self,
 2776        replace_current_window: bool,
 2777        paths: Vec<PathBuf>,
 2778        window: &mut Window,
 2779        cx: &mut Context<Self>,
 2780    ) -> Task<Result<()>> {
 2781        let window_handle = window.window_handle().downcast::<Self>();
 2782        let is_remote = self.project.read(cx).is_via_collab();
 2783        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2784        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2785
 2786        let window_to_replace = if replace_current_window {
 2787            window_handle
 2788        } else if is_remote || has_worktree || has_dirty_items {
 2789            None
 2790        } else {
 2791            window_handle
 2792        };
 2793        let app_state = self.app_state.clone();
 2794
 2795        cx.spawn(async move |_, cx| {
 2796            cx.update(|cx| {
 2797                open_paths(
 2798                    &paths,
 2799                    app_state,
 2800                    OpenOptions {
 2801                        replace_window: window_to_replace,
 2802                        ..Default::default()
 2803                    },
 2804                    cx,
 2805                )
 2806            })
 2807            .await?;
 2808            Ok(())
 2809        })
 2810    }
 2811
 2812    #[allow(clippy::type_complexity)]
 2813    pub fn open_paths(
 2814        &mut self,
 2815        mut abs_paths: Vec<PathBuf>,
 2816        options: OpenOptions,
 2817        pane: Option<WeakEntity<Pane>>,
 2818        window: &mut Window,
 2819        cx: &mut Context<Self>,
 2820    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2821        let fs = self.app_state.fs.clone();
 2822
 2823        let caller_ordered_abs_paths = abs_paths.clone();
 2824
 2825        // Sort the paths to ensure we add worktrees for parents before their children.
 2826        abs_paths.sort_unstable();
 2827        cx.spawn_in(window, async move |this, cx| {
 2828            let mut tasks = Vec::with_capacity(abs_paths.len());
 2829
 2830            for abs_path in &abs_paths {
 2831                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2832                    OpenVisible::All => Some(true),
 2833                    OpenVisible::None => Some(false),
 2834                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2835                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2836                        Some(None) => Some(true),
 2837                        None => None,
 2838                    },
 2839                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2840                        Some(Some(metadata)) => Some(metadata.is_dir),
 2841                        Some(None) => Some(false),
 2842                        None => None,
 2843                    },
 2844                };
 2845                let project_path = match visible {
 2846                    Some(visible) => match this
 2847                        .update(cx, |this, cx| {
 2848                            Workspace::project_path_for_path(
 2849                                this.project.clone(),
 2850                                abs_path,
 2851                                visible,
 2852                                cx,
 2853                            )
 2854                        })
 2855                        .log_err()
 2856                    {
 2857                        Some(project_path) => project_path.await.log_err(),
 2858                        None => None,
 2859                    },
 2860                    None => None,
 2861                };
 2862
 2863                let this = this.clone();
 2864                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2865                let fs = fs.clone();
 2866                let pane = pane.clone();
 2867                let task = cx.spawn(async move |cx| {
 2868                    let (_worktree, project_path) = project_path?;
 2869                    if fs.is_dir(&abs_path).await {
 2870                        // Opening a directory should not race to update the active entry.
 2871                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 2872                        None
 2873                    } else {
 2874                        Some(
 2875                            this.update_in(cx, |this, window, cx| {
 2876                                this.open_path(
 2877                                    project_path,
 2878                                    pane,
 2879                                    options.focus.unwrap_or(true),
 2880                                    window,
 2881                                    cx,
 2882                                )
 2883                            })
 2884                            .ok()?
 2885                            .await,
 2886                        )
 2887                    }
 2888                });
 2889                tasks.push(task);
 2890            }
 2891
 2892            let results = futures::future::join_all(tasks).await;
 2893
 2894            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 2895            let mut winner: Option<(PathBuf, bool)> = None;
 2896            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 2897                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 2898                    if !metadata.is_dir {
 2899                        winner = Some((abs_path, false));
 2900                        break;
 2901                    }
 2902                    if winner.is_none() {
 2903                        winner = Some((abs_path, true));
 2904                    }
 2905                } else if winner.is_none() {
 2906                    winner = Some((abs_path, false));
 2907                }
 2908            }
 2909
 2910            // Compute the winner entry id on the foreground thread and emit once, after all
 2911            // paths finish opening. This avoids races between concurrently-opening paths
 2912            // (directories in particular) and makes the resulting project panel selection
 2913            // deterministic.
 2914            if let Some((winner_abs_path, winner_is_dir)) = winner {
 2915                'emit_winner: {
 2916                    let winner_abs_path: Arc<Path> =
 2917                        SanitizedPath::new(&winner_abs_path).as_path().into();
 2918
 2919                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2920                        OpenVisible::All => true,
 2921                        OpenVisible::None => false,
 2922                        OpenVisible::OnlyFiles => !winner_is_dir,
 2923                        OpenVisible::OnlyDirectories => winner_is_dir,
 2924                    };
 2925
 2926                    let Some(worktree_task) = this
 2927                        .update(cx, |workspace, cx| {
 2928                            workspace.project.update(cx, |project, cx| {
 2929                                project.find_or_create_worktree(
 2930                                    winner_abs_path.as_ref(),
 2931                                    visible,
 2932                                    cx,
 2933                                )
 2934                            })
 2935                        })
 2936                        .ok()
 2937                    else {
 2938                        break 'emit_winner;
 2939                    };
 2940
 2941                    let Ok((worktree, _)) = worktree_task.await else {
 2942                        break 'emit_winner;
 2943                    };
 2944
 2945                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 2946                        let worktree = worktree.read(cx);
 2947                        let worktree_abs_path = worktree.abs_path();
 2948                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 2949                            worktree.root_entry()
 2950                        } else {
 2951                            winner_abs_path
 2952                                .strip_prefix(worktree_abs_path.as_ref())
 2953                                .ok()
 2954                                .and_then(|relative_path| {
 2955                                    let relative_path =
 2956                                        RelPath::new(relative_path, PathStyle::local())
 2957                                            .log_err()?;
 2958                                    worktree.entry_for_path(&relative_path)
 2959                                })
 2960                        }?;
 2961                        Some(entry.id)
 2962                    }) else {
 2963                        break 'emit_winner;
 2964                    };
 2965
 2966                    this.update(cx, |workspace, cx| {
 2967                        workspace.project.update(cx, |_, cx| {
 2968                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2969                        });
 2970                    })
 2971                    .ok();
 2972                }
 2973            }
 2974
 2975            results
 2976        })
 2977    }
 2978
 2979    pub fn open_resolved_path(
 2980        &mut self,
 2981        path: ResolvedPath,
 2982        window: &mut Window,
 2983        cx: &mut Context<Self>,
 2984    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2985        match path {
 2986            ResolvedPath::ProjectPath { project_path, .. } => {
 2987                self.open_path(project_path, None, true, window, cx)
 2988            }
 2989            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2990                PathBuf::from(path),
 2991                OpenOptions {
 2992                    visible: Some(OpenVisible::None),
 2993                    ..Default::default()
 2994                },
 2995                window,
 2996                cx,
 2997            ),
 2998        }
 2999    }
 3000
 3001    pub fn absolute_path_of_worktree(
 3002        &self,
 3003        worktree_id: WorktreeId,
 3004        cx: &mut Context<Self>,
 3005    ) -> Option<PathBuf> {
 3006        self.project
 3007            .read(cx)
 3008            .worktree_for_id(worktree_id, cx)
 3009            // TODO: use `abs_path` or `root_dir`
 3010            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3011    }
 3012
 3013    fn add_folder_to_project(
 3014        &mut self,
 3015        _: &AddFolderToProject,
 3016        window: &mut Window,
 3017        cx: &mut Context<Self>,
 3018    ) {
 3019        let project = self.project.read(cx);
 3020        if project.is_via_collab() {
 3021            self.show_error(
 3022                &anyhow!("You cannot add folders to someone else's project"),
 3023                cx,
 3024            );
 3025            return;
 3026        }
 3027        let paths = self.prompt_for_open_path(
 3028            PathPromptOptions {
 3029                files: false,
 3030                directories: true,
 3031                multiple: true,
 3032                prompt: None,
 3033            },
 3034            DirectoryLister::Project(self.project.clone()),
 3035            window,
 3036            cx,
 3037        );
 3038        cx.spawn_in(window, async move |this, cx| {
 3039            if let Some(paths) = paths.await.log_err().flatten() {
 3040                let results = this
 3041                    .update_in(cx, |this, window, cx| {
 3042                        this.open_paths(
 3043                            paths,
 3044                            OpenOptions {
 3045                                visible: Some(OpenVisible::All),
 3046                                ..Default::default()
 3047                            },
 3048                            None,
 3049                            window,
 3050                            cx,
 3051                        )
 3052                    })?
 3053                    .await;
 3054                for result in results.into_iter().flatten() {
 3055                    result.log_err();
 3056                }
 3057            }
 3058            anyhow::Ok(())
 3059        })
 3060        .detach_and_log_err(cx);
 3061    }
 3062
 3063    pub fn project_path_for_path(
 3064        project: Entity<Project>,
 3065        abs_path: &Path,
 3066        visible: bool,
 3067        cx: &mut App,
 3068    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3069        let entry = project.update(cx, |project, cx| {
 3070            project.find_or_create_worktree(abs_path, visible, cx)
 3071        });
 3072        cx.spawn(async move |cx| {
 3073            let (worktree, path) = entry.await?;
 3074            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3075            Ok((
 3076                worktree,
 3077                ProjectPath {
 3078                    worktree_id,
 3079                    path: path,
 3080                },
 3081            ))
 3082        })
 3083    }
 3084
 3085    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3086        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3087    }
 3088
 3089    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3090        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3091    }
 3092
 3093    pub fn items_of_type<'a, T: Item>(
 3094        &'a self,
 3095        cx: &'a App,
 3096    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3097        self.panes
 3098            .iter()
 3099            .flat_map(|pane| pane.read(cx).items_of_type())
 3100    }
 3101
 3102    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3103        self.active_pane().read(cx).active_item()
 3104    }
 3105
 3106    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3107        let item = self.active_item(cx)?;
 3108        item.to_any_view().downcast::<I>().ok()
 3109    }
 3110
 3111    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3112        self.active_item(cx).and_then(|item| item.project_path(cx))
 3113    }
 3114
 3115    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3116        self.recent_navigation_history_iter(cx)
 3117            .filter_map(|(path, abs_path)| {
 3118                let worktree = self
 3119                    .project
 3120                    .read(cx)
 3121                    .worktree_for_id(path.worktree_id, cx)?;
 3122                if worktree.read(cx).is_visible() {
 3123                    abs_path
 3124                } else {
 3125                    None
 3126                }
 3127            })
 3128            .next()
 3129    }
 3130
 3131    pub fn save_active_item(
 3132        &mut self,
 3133        save_intent: SaveIntent,
 3134        window: &mut Window,
 3135        cx: &mut App,
 3136    ) -> Task<Result<()>> {
 3137        let project = self.project.clone();
 3138        let pane = self.active_pane();
 3139        let item = pane.read(cx).active_item();
 3140        let pane = pane.downgrade();
 3141
 3142        window.spawn(cx, async move |cx| {
 3143            if let Some(item) = item {
 3144                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3145                    .await
 3146                    .map(|_| ())
 3147            } else {
 3148                Ok(())
 3149            }
 3150        })
 3151    }
 3152
 3153    pub fn close_inactive_items_and_panes(
 3154        &mut self,
 3155        action: &CloseInactiveTabsAndPanes,
 3156        window: &mut Window,
 3157        cx: &mut Context<Self>,
 3158    ) {
 3159        if let Some(task) = self.close_all_internal(
 3160            true,
 3161            action.save_intent.unwrap_or(SaveIntent::Close),
 3162            window,
 3163            cx,
 3164        ) {
 3165            task.detach_and_log_err(cx)
 3166        }
 3167    }
 3168
 3169    pub fn close_all_items_and_panes(
 3170        &mut self,
 3171        action: &CloseAllItemsAndPanes,
 3172        window: &mut Window,
 3173        cx: &mut Context<Self>,
 3174    ) {
 3175        if let Some(task) = self.close_all_internal(
 3176            false,
 3177            action.save_intent.unwrap_or(SaveIntent::Close),
 3178            window,
 3179            cx,
 3180        ) {
 3181            task.detach_and_log_err(cx)
 3182        }
 3183    }
 3184
 3185    fn close_all_internal(
 3186        &mut self,
 3187        retain_active_pane: bool,
 3188        save_intent: SaveIntent,
 3189        window: &mut Window,
 3190        cx: &mut Context<Self>,
 3191    ) -> Option<Task<Result<()>>> {
 3192        let current_pane = self.active_pane();
 3193
 3194        let mut tasks = Vec::new();
 3195
 3196        if retain_active_pane {
 3197            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3198                pane.close_other_items(
 3199                    &CloseOtherItems {
 3200                        save_intent: None,
 3201                        close_pinned: false,
 3202                    },
 3203                    None,
 3204                    window,
 3205                    cx,
 3206                )
 3207            });
 3208
 3209            tasks.push(current_pane_close);
 3210        }
 3211
 3212        for pane in self.panes() {
 3213            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3214                continue;
 3215            }
 3216
 3217            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3218                pane.close_all_items(
 3219                    &CloseAllItems {
 3220                        save_intent: Some(save_intent),
 3221                        close_pinned: false,
 3222                    },
 3223                    window,
 3224                    cx,
 3225                )
 3226            });
 3227
 3228            tasks.push(close_pane_items)
 3229        }
 3230
 3231        if tasks.is_empty() {
 3232            None
 3233        } else {
 3234            Some(cx.spawn_in(window, async move |_, _| {
 3235                for task in tasks {
 3236                    task.await?
 3237                }
 3238                Ok(())
 3239            }))
 3240        }
 3241    }
 3242
 3243    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3244        self.dock_at_position(position).read(cx).is_open()
 3245    }
 3246
 3247    pub fn toggle_dock(
 3248        &mut self,
 3249        dock_side: DockPosition,
 3250        window: &mut Window,
 3251        cx: &mut Context<Self>,
 3252    ) {
 3253        let mut focus_center = false;
 3254        let mut reveal_dock = false;
 3255
 3256        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3257        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3258        if was_visible {
 3259            self.save_open_dock_positions(cx);
 3260        }
 3261
 3262        let dock = self.dock_at_position(dock_side);
 3263        dock.update(cx, |dock, cx| {
 3264            dock.set_open(!was_visible, window, cx);
 3265
 3266            if dock.active_panel().is_none() {
 3267                let Some(panel_ix) = dock
 3268                    .first_enabled_panel_idx(cx)
 3269                    .log_with_level(log::Level::Info)
 3270                else {
 3271                    return;
 3272                };
 3273                dock.activate_panel(panel_ix, window, cx);
 3274            }
 3275
 3276            if let Some(active_panel) = dock.active_panel() {
 3277                if was_visible {
 3278                    if active_panel
 3279                        .panel_focus_handle(cx)
 3280                        .contains_focused(window, cx)
 3281                    {
 3282                        focus_center = true;
 3283                    }
 3284                } else {
 3285                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3286                    window.focus(focus_handle, cx);
 3287                    reveal_dock = true;
 3288                }
 3289            }
 3290        });
 3291
 3292        if reveal_dock {
 3293            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3294        }
 3295
 3296        if focus_center {
 3297            self.active_pane
 3298                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3299        }
 3300
 3301        cx.notify();
 3302        self.serialize_workspace(window, cx);
 3303    }
 3304
 3305    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3306        self.all_docks().into_iter().find(|&dock| {
 3307            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3308        })
 3309    }
 3310
 3311    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3312        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3313            self.save_open_dock_positions(cx);
 3314            dock.update(cx, |dock, cx| {
 3315                dock.set_open(false, window, cx);
 3316            });
 3317            return true;
 3318        }
 3319        false
 3320    }
 3321
 3322    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3323        self.save_open_dock_positions(cx);
 3324        for dock in self.all_docks() {
 3325            dock.update(cx, |dock, cx| {
 3326                dock.set_open(false, window, cx);
 3327            });
 3328        }
 3329
 3330        cx.focus_self(window);
 3331        cx.notify();
 3332        self.serialize_workspace(window, cx);
 3333    }
 3334
 3335    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3336        self.all_docks()
 3337            .into_iter()
 3338            .filter_map(|dock| {
 3339                let dock_ref = dock.read(cx);
 3340                if dock_ref.is_open() {
 3341                    Some(dock_ref.position())
 3342                } else {
 3343                    None
 3344                }
 3345            })
 3346            .collect()
 3347    }
 3348
 3349    /// Saves the positions of currently open docks.
 3350    ///
 3351    /// Updates `last_open_dock_positions` with positions of all currently open
 3352    /// docks, to later be restored by the 'Toggle All Docks' action.
 3353    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3354        let open_dock_positions = self.get_open_dock_positions(cx);
 3355        if !open_dock_positions.is_empty() {
 3356            self.last_open_dock_positions = open_dock_positions;
 3357        }
 3358    }
 3359
 3360    /// Toggles all docks between open and closed states.
 3361    ///
 3362    /// If any docks are open, closes all and remembers their positions. If all
 3363    /// docks are closed, restores the last remembered dock configuration.
 3364    fn toggle_all_docks(
 3365        &mut self,
 3366        _: &ToggleAllDocks,
 3367        window: &mut Window,
 3368        cx: &mut Context<Self>,
 3369    ) {
 3370        let open_dock_positions = self.get_open_dock_positions(cx);
 3371
 3372        if !open_dock_positions.is_empty() {
 3373            self.close_all_docks(window, cx);
 3374        } else if !self.last_open_dock_positions.is_empty() {
 3375            self.restore_last_open_docks(window, cx);
 3376        }
 3377    }
 3378
 3379    /// Reopens docks from the most recently remembered configuration.
 3380    ///
 3381    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3382    /// and clears the stored positions.
 3383    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3384        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3385
 3386        for position in positions_to_open {
 3387            let dock = self.dock_at_position(position);
 3388            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3389        }
 3390
 3391        cx.focus_self(window);
 3392        cx.notify();
 3393        self.serialize_workspace(window, cx);
 3394    }
 3395
 3396    /// Transfer focus to the panel of the given type.
 3397    pub fn focus_panel<T: Panel>(
 3398        &mut self,
 3399        window: &mut Window,
 3400        cx: &mut Context<Self>,
 3401    ) -> Option<Entity<T>> {
 3402        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3403        panel.to_any().downcast().ok()
 3404    }
 3405
 3406    /// Focus the panel of the given type if it isn't already focused. If it is
 3407    /// already focused, then transfer focus back to the workspace center.
 3408    pub fn toggle_panel_focus<T: Panel>(
 3409        &mut self,
 3410        window: &mut Window,
 3411        cx: &mut Context<Self>,
 3412    ) -> bool {
 3413        let mut did_focus_panel = false;
 3414        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3415            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3416            did_focus_panel
 3417        });
 3418        did_focus_panel
 3419    }
 3420
 3421    pub fn activate_panel_for_proto_id(
 3422        &mut self,
 3423        panel_id: PanelId,
 3424        window: &mut Window,
 3425        cx: &mut Context<Self>,
 3426    ) -> Option<Arc<dyn PanelHandle>> {
 3427        let mut panel = None;
 3428        for dock in self.all_docks() {
 3429            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3430                panel = dock.update(cx, |dock, cx| {
 3431                    dock.activate_panel(panel_index, window, cx);
 3432                    dock.set_open(true, window, cx);
 3433                    dock.active_panel().cloned()
 3434                });
 3435                break;
 3436            }
 3437        }
 3438
 3439        if panel.is_some() {
 3440            cx.notify();
 3441            self.serialize_workspace(window, cx);
 3442        }
 3443
 3444        panel
 3445    }
 3446
 3447    /// Focus or unfocus the given panel type, depending on the given callback.
 3448    fn focus_or_unfocus_panel<T: Panel>(
 3449        &mut self,
 3450        window: &mut Window,
 3451        cx: &mut Context<Self>,
 3452        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3453    ) -> Option<Arc<dyn PanelHandle>> {
 3454        let mut result_panel = None;
 3455        let mut serialize = false;
 3456        for dock in self.all_docks() {
 3457            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3458                let mut focus_center = false;
 3459                let panel = dock.update(cx, |dock, cx| {
 3460                    dock.activate_panel(panel_index, window, cx);
 3461
 3462                    let panel = dock.active_panel().cloned();
 3463                    if let Some(panel) = panel.as_ref() {
 3464                        if should_focus(&**panel, window, cx) {
 3465                            dock.set_open(true, window, cx);
 3466                            panel.panel_focus_handle(cx).focus(window, cx);
 3467                        } else {
 3468                            focus_center = true;
 3469                        }
 3470                    }
 3471                    panel
 3472                });
 3473
 3474                if focus_center {
 3475                    self.active_pane
 3476                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3477                }
 3478
 3479                result_panel = panel;
 3480                serialize = true;
 3481                break;
 3482            }
 3483        }
 3484
 3485        if serialize {
 3486            self.serialize_workspace(window, cx);
 3487        }
 3488
 3489        cx.notify();
 3490        result_panel
 3491    }
 3492
 3493    /// Open the panel of the given type
 3494    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3495        for dock in self.all_docks() {
 3496            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3497                dock.update(cx, |dock, cx| {
 3498                    dock.activate_panel(panel_index, window, cx);
 3499                    dock.set_open(true, window, cx);
 3500                });
 3501            }
 3502        }
 3503    }
 3504
 3505    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3506        for dock in self.all_docks().iter() {
 3507            dock.update(cx, |dock, cx| {
 3508                if dock.panel::<T>().is_some() {
 3509                    dock.set_open(false, window, cx)
 3510                }
 3511            })
 3512        }
 3513    }
 3514
 3515    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3516        self.all_docks()
 3517            .iter()
 3518            .find_map(|dock| dock.read(cx).panel::<T>())
 3519    }
 3520
 3521    fn dismiss_zoomed_items_to_reveal(
 3522        &mut self,
 3523        dock_to_reveal: Option<DockPosition>,
 3524        window: &mut Window,
 3525        cx: &mut Context<Self>,
 3526    ) {
 3527        // If a center pane is zoomed, unzoom it.
 3528        for pane in &self.panes {
 3529            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3530                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3531            }
 3532        }
 3533
 3534        // If another dock is zoomed, hide it.
 3535        let mut focus_center = false;
 3536        for dock in self.all_docks() {
 3537            dock.update(cx, |dock, cx| {
 3538                if Some(dock.position()) != dock_to_reveal
 3539                    && let Some(panel) = dock.active_panel()
 3540                    && panel.is_zoomed(window, cx)
 3541                {
 3542                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3543                    dock.set_open(false, window, cx);
 3544                }
 3545            });
 3546        }
 3547
 3548        if focus_center {
 3549            self.active_pane
 3550                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3551        }
 3552
 3553        if self.zoomed_position != dock_to_reveal {
 3554            self.zoomed = None;
 3555            self.zoomed_position = None;
 3556            cx.emit(Event::ZoomChanged);
 3557        }
 3558
 3559        cx.notify();
 3560    }
 3561
 3562    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3563        let pane = cx.new(|cx| {
 3564            let mut pane = Pane::new(
 3565                self.weak_handle(),
 3566                self.project.clone(),
 3567                self.pane_history_timestamp.clone(),
 3568                None,
 3569                NewFile.boxed_clone(),
 3570                true,
 3571                window,
 3572                cx,
 3573            );
 3574            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3575            pane
 3576        });
 3577        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3578            .detach();
 3579        self.panes.push(pane.clone());
 3580
 3581        window.focus(&pane.focus_handle(cx), cx);
 3582
 3583        cx.emit(Event::PaneAdded(pane.clone()));
 3584        pane
 3585    }
 3586
 3587    pub fn add_item_to_center(
 3588        &mut self,
 3589        item: Box<dyn ItemHandle>,
 3590        window: &mut Window,
 3591        cx: &mut Context<Self>,
 3592    ) -> bool {
 3593        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3594            if let Some(center_pane) = center_pane.upgrade() {
 3595                center_pane.update(cx, |pane, cx| {
 3596                    pane.add_item(item, true, true, None, window, cx)
 3597                });
 3598                true
 3599            } else {
 3600                false
 3601            }
 3602        } else {
 3603            false
 3604        }
 3605    }
 3606
 3607    pub fn add_item_to_active_pane(
 3608        &mut self,
 3609        item: Box<dyn ItemHandle>,
 3610        destination_index: Option<usize>,
 3611        focus_item: bool,
 3612        window: &mut Window,
 3613        cx: &mut App,
 3614    ) {
 3615        self.add_item(
 3616            self.active_pane.clone(),
 3617            item,
 3618            destination_index,
 3619            false,
 3620            focus_item,
 3621            window,
 3622            cx,
 3623        )
 3624    }
 3625
 3626    pub fn add_item(
 3627        &mut self,
 3628        pane: Entity<Pane>,
 3629        item: Box<dyn ItemHandle>,
 3630        destination_index: Option<usize>,
 3631        activate_pane: bool,
 3632        focus_item: bool,
 3633        window: &mut Window,
 3634        cx: &mut App,
 3635    ) {
 3636        pane.update(cx, |pane, cx| {
 3637            pane.add_item(
 3638                item,
 3639                activate_pane,
 3640                focus_item,
 3641                destination_index,
 3642                window,
 3643                cx,
 3644            )
 3645        });
 3646    }
 3647
 3648    pub fn split_item(
 3649        &mut self,
 3650        split_direction: SplitDirection,
 3651        item: Box<dyn ItemHandle>,
 3652        window: &mut Window,
 3653        cx: &mut Context<Self>,
 3654    ) {
 3655        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3656        self.add_item(new_pane, item, None, true, true, window, cx);
 3657    }
 3658
 3659    pub fn open_abs_path(
 3660        &mut self,
 3661        abs_path: PathBuf,
 3662        options: OpenOptions,
 3663        window: &mut Window,
 3664        cx: &mut Context<Self>,
 3665    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3666        cx.spawn_in(window, async move |workspace, cx| {
 3667            let open_paths_task_result = workspace
 3668                .update_in(cx, |workspace, window, cx| {
 3669                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3670                })
 3671                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3672                .await;
 3673            anyhow::ensure!(
 3674                open_paths_task_result.len() == 1,
 3675                "open abs path {abs_path:?} task returned incorrect number of results"
 3676            );
 3677            match open_paths_task_result
 3678                .into_iter()
 3679                .next()
 3680                .expect("ensured single task result")
 3681            {
 3682                Some(open_result) => {
 3683                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3684                }
 3685                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3686            }
 3687        })
 3688    }
 3689
 3690    pub fn split_abs_path(
 3691        &mut self,
 3692        abs_path: PathBuf,
 3693        visible: bool,
 3694        window: &mut Window,
 3695        cx: &mut Context<Self>,
 3696    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3697        let project_path_task =
 3698            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3699        cx.spawn_in(window, async move |this, cx| {
 3700            let (_, path) = project_path_task.await?;
 3701            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3702                .await
 3703        })
 3704    }
 3705
 3706    pub fn open_path(
 3707        &mut self,
 3708        path: impl Into<ProjectPath>,
 3709        pane: Option<WeakEntity<Pane>>,
 3710        focus_item: bool,
 3711        window: &mut Window,
 3712        cx: &mut App,
 3713    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3714        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3715    }
 3716
 3717    pub fn open_path_preview(
 3718        &mut self,
 3719        path: impl Into<ProjectPath>,
 3720        pane: Option<WeakEntity<Pane>>,
 3721        focus_item: bool,
 3722        allow_preview: bool,
 3723        activate: bool,
 3724        window: &mut Window,
 3725        cx: &mut App,
 3726    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3727        let pane = pane.unwrap_or_else(|| {
 3728            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3729                self.panes
 3730                    .first()
 3731                    .expect("There must be an active pane")
 3732                    .downgrade()
 3733            })
 3734        });
 3735
 3736        let project_path = path.into();
 3737        let task = self.load_path(project_path.clone(), window, cx);
 3738        window.spawn(cx, async move |cx| {
 3739            let (project_entry_id, build_item) = task.await?;
 3740
 3741            pane.update_in(cx, |pane, window, cx| {
 3742                pane.open_item(
 3743                    project_entry_id,
 3744                    project_path,
 3745                    focus_item,
 3746                    allow_preview,
 3747                    activate,
 3748                    None,
 3749                    window,
 3750                    cx,
 3751                    build_item,
 3752                )
 3753            })
 3754        })
 3755    }
 3756
 3757    pub fn split_path(
 3758        &mut self,
 3759        path: impl Into<ProjectPath>,
 3760        window: &mut Window,
 3761        cx: &mut Context<Self>,
 3762    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3763        self.split_path_preview(path, false, None, window, cx)
 3764    }
 3765
 3766    pub fn split_path_preview(
 3767        &mut self,
 3768        path: impl Into<ProjectPath>,
 3769        allow_preview: bool,
 3770        split_direction: Option<SplitDirection>,
 3771        window: &mut Window,
 3772        cx: &mut Context<Self>,
 3773    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3774        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3775            self.panes
 3776                .first()
 3777                .expect("There must be an active pane")
 3778                .downgrade()
 3779        });
 3780
 3781        if let Member::Pane(center_pane) = &self.center.root
 3782            && center_pane.read(cx).items_len() == 0
 3783        {
 3784            return self.open_path(path, Some(pane), true, window, cx);
 3785        }
 3786
 3787        let project_path = path.into();
 3788        let task = self.load_path(project_path.clone(), window, cx);
 3789        cx.spawn_in(window, async move |this, cx| {
 3790            let (project_entry_id, build_item) = task.await?;
 3791            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3792                let pane = pane.upgrade()?;
 3793                let new_pane = this.split_pane(
 3794                    pane,
 3795                    split_direction.unwrap_or(SplitDirection::Right),
 3796                    window,
 3797                    cx,
 3798                );
 3799                new_pane.update(cx, |new_pane, cx| {
 3800                    Some(new_pane.open_item(
 3801                        project_entry_id,
 3802                        project_path,
 3803                        true,
 3804                        allow_preview,
 3805                        true,
 3806                        None,
 3807                        window,
 3808                        cx,
 3809                        build_item,
 3810                    ))
 3811                })
 3812            })
 3813            .map(|option| option.context("pane was dropped"))?
 3814        })
 3815    }
 3816
 3817    fn load_path(
 3818        &mut self,
 3819        path: ProjectPath,
 3820        window: &mut Window,
 3821        cx: &mut App,
 3822    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3823        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3824        registry.open_path(self.project(), &path, window, cx)
 3825    }
 3826
 3827    pub fn find_project_item<T>(
 3828        &self,
 3829        pane: &Entity<Pane>,
 3830        project_item: &Entity<T::Item>,
 3831        cx: &App,
 3832    ) -> Option<Entity<T>>
 3833    where
 3834        T: ProjectItem,
 3835    {
 3836        use project::ProjectItem as _;
 3837        let project_item = project_item.read(cx);
 3838        let entry_id = project_item.entry_id(cx);
 3839        let project_path = project_item.project_path(cx);
 3840
 3841        let mut item = None;
 3842        if let Some(entry_id) = entry_id {
 3843            item = pane.read(cx).item_for_entry(entry_id, cx);
 3844        }
 3845        if item.is_none()
 3846            && let Some(project_path) = project_path
 3847        {
 3848            item = pane.read(cx).item_for_path(project_path, cx);
 3849        }
 3850
 3851        item.and_then(|item| item.downcast::<T>())
 3852    }
 3853
 3854    pub fn is_project_item_open<T>(
 3855        &self,
 3856        pane: &Entity<Pane>,
 3857        project_item: &Entity<T::Item>,
 3858        cx: &App,
 3859    ) -> bool
 3860    where
 3861        T: ProjectItem,
 3862    {
 3863        self.find_project_item::<T>(pane, project_item, cx)
 3864            .is_some()
 3865    }
 3866
 3867    pub fn open_project_item<T>(
 3868        &mut self,
 3869        pane: Entity<Pane>,
 3870        project_item: Entity<T::Item>,
 3871        activate_pane: bool,
 3872        focus_item: bool,
 3873        keep_old_preview: bool,
 3874        allow_new_preview: bool,
 3875        window: &mut Window,
 3876        cx: &mut Context<Self>,
 3877    ) -> Entity<T>
 3878    where
 3879        T: ProjectItem,
 3880    {
 3881        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3882
 3883        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3884            if !keep_old_preview
 3885                && let Some(old_id) = old_item_id
 3886                && old_id != item.item_id()
 3887            {
 3888                // switching to a different item, so unpreview old active item
 3889                pane.update(cx, |pane, _| {
 3890                    pane.unpreview_item_if_preview(old_id);
 3891                });
 3892            }
 3893
 3894            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3895            if !allow_new_preview {
 3896                pane.update(cx, |pane, _| {
 3897                    pane.unpreview_item_if_preview(item.item_id());
 3898                });
 3899            }
 3900            return item;
 3901        }
 3902
 3903        let item = pane.update(cx, |pane, cx| {
 3904            cx.new(|cx| {
 3905                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3906            })
 3907        });
 3908        let mut destination_index = None;
 3909        pane.update(cx, |pane, cx| {
 3910            if !keep_old_preview && let Some(old_id) = old_item_id {
 3911                pane.unpreview_item_if_preview(old_id);
 3912            }
 3913            if allow_new_preview {
 3914                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3915            }
 3916        });
 3917
 3918        self.add_item(
 3919            pane,
 3920            Box::new(item.clone()),
 3921            destination_index,
 3922            activate_pane,
 3923            focus_item,
 3924            window,
 3925            cx,
 3926        );
 3927        item
 3928    }
 3929
 3930    pub fn open_shared_screen(
 3931        &mut self,
 3932        peer_id: PeerId,
 3933        window: &mut Window,
 3934        cx: &mut Context<Self>,
 3935    ) {
 3936        if let Some(shared_screen) =
 3937            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3938        {
 3939            self.active_pane.update(cx, |pane, cx| {
 3940                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3941            });
 3942        }
 3943    }
 3944
 3945    pub fn activate_item(
 3946        &mut self,
 3947        item: &dyn ItemHandle,
 3948        activate_pane: bool,
 3949        focus_item: bool,
 3950        window: &mut Window,
 3951        cx: &mut App,
 3952    ) -> bool {
 3953        let result = self.panes.iter().find_map(|pane| {
 3954            pane.read(cx)
 3955                .index_for_item(item)
 3956                .map(|ix| (pane.clone(), ix))
 3957        });
 3958        if let Some((pane, ix)) = result {
 3959            pane.update(cx, |pane, cx| {
 3960                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3961            });
 3962            true
 3963        } else {
 3964            false
 3965        }
 3966    }
 3967
 3968    fn activate_pane_at_index(
 3969        &mut self,
 3970        action: &ActivatePane,
 3971        window: &mut Window,
 3972        cx: &mut Context<Self>,
 3973    ) {
 3974        let panes = self.center.panes();
 3975        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3976            window.focus(&pane.focus_handle(cx), cx);
 3977        } else {
 3978            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3979                .detach();
 3980        }
 3981    }
 3982
 3983    fn move_item_to_pane_at_index(
 3984        &mut self,
 3985        action: &MoveItemToPane,
 3986        window: &mut Window,
 3987        cx: &mut Context<Self>,
 3988    ) {
 3989        let panes = self.center.panes();
 3990        let destination = match panes.get(action.destination) {
 3991            Some(&destination) => destination.clone(),
 3992            None => {
 3993                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3994                    return;
 3995                }
 3996                let direction = SplitDirection::Right;
 3997                let split_off_pane = self
 3998                    .find_pane_in_direction(direction, cx)
 3999                    .unwrap_or_else(|| self.active_pane.clone());
 4000                let new_pane = self.add_pane(window, cx);
 4001                if self
 4002                    .center
 4003                    .split(&split_off_pane, &new_pane, direction, cx)
 4004                    .log_err()
 4005                    .is_none()
 4006                {
 4007                    return;
 4008                };
 4009                new_pane
 4010            }
 4011        };
 4012
 4013        if action.clone {
 4014            if self
 4015                .active_pane
 4016                .read(cx)
 4017                .active_item()
 4018                .is_some_and(|item| item.can_split(cx))
 4019            {
 4020                clone_active_item(
 4021                    self.database_id(),
 4022                    &self.active_pane,
 4023                    &destination,
 4024                    action.focus,
 4025                    window,
 4026                    cx,
 4027                );
 4028                return;
 4029            }
 4030        }
 4031        move_active_item(
 4032            &self.active_pane,
 4033            &destination,
 4034            action.focus,
 4035            true,
 4036            window,
 4037            cx,
 4038        )
 4039    }
 4040
 4041    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4042        let panes = self.center.panes();
 4043        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4044            let next_ix = (ix + 1) % panes.len();
 4045            let next_pane = panes[next_ix].clone();
 4046            window.focus(&next_pane.focus_handle(cx), cx);
 4047        }
 4048    }
 4049
 4050    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4051        let panes = self.center.panes();
 4052        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4053            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4054            let prev_pane = panes[prev_ix].clone();
 4055            window.focus(&prev_pane.focus_handle(cx), cx);
 4056        }
 4057    }
 4058
 4059    pub fn activate_pane_in_direction(
 4060        &mut self,
 4061        direction: SplitDirection,
 4062        window: &mut Window,
 4063        cx: &mut App,
 4064    ) {
 4065        use ActivateInDirectionTarget as Target;
 4066        enum Origin {
 4067            LeftDock,
 4068            RightDock,
 4069            BottomDock,
 4070            Center,
 4071        }
 4072
 4073        let origin: Origin = [
 4074            (&self.left_dock, Origin::LeftDock),
 4075            (&self.right_dock, Origin::RightDock),
 4076            (&self.bottom_dock, Origin::BottomDock),
 4077        ]
 4078        .into_iter()
 4079        .find_map(|(dock, origin)| {
 4080            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4081                Some(origin)
 4082            } else {
 4083                None
 4084            }
 4085        })
 4086        .unwrap_or(Origin::Center);
 4087
 4088        let get_last_active_pane = || {
 4089            let pane = self
 4090                .last_active_center_pane
 4091                .clone()
 4092                .unwrap_or_else(|| {
 4093                    self.panes
 4094                        .first()
 4095                        .expect("There must be an active pane")
 4096                        .downgrade()
 4097                })
 4098                .upgrade()?;
 4099            (pane.read(cx).items_len() != 0).then_some(pane)
 4100        };
 4101
 4102        let try_dock =
 4103            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4104
 4105        let target = match (origin, direction) {
 4106            // We're in the center, so we first try to go to a different pane,
 4107            // otherwise try to go to a dock.
 4108            (Origin::Center, direction) => {
 4109                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4110                    Some(Target::Pane(pane))
 4111                } else {
 4112                    match direction {
 4113                        SplitDirection::Up => None,
 4114                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4115                        SplitDirection::Left => try_dock(&self.left_dock),
 4116                        SplitDirection::Right => try_dock(&self.right_dock),
 4117                    }
 4118                }
 4119            }
 4120
 4121            (Origin::LeftDock, SplitDirection::Right) => {
 4122                if let Some(last_active_pane) = get_last_active_pane() {
 4123                    Some(Target::Pane(last_active_pane))
 4124                } else {
 4125                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4126                }
 4127            }
 4128
 4129            (Origin::LeftDock, SplitDirection::Down)
 4130            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4131
 4132            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4133            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4134            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4135
 4136            (Origin::RightDock, SplitDirection::Left) => {
 4137                if let Some(last_active_pane) = get_last_active_pane() {
 4138                    Some(Target::Pane(last_active_pane))
 4139                } else {
 4140                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4141                }
 4142            }
 4143
 4144            _ => None,
 4145        };
 4146
 4147        match target {
 4148            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4149                let pane = pane.read(cx);
 4150                if let Some(item) = pane.active_item() {
 4151                    item.item_focus_handle(cx).focus(window, cx);
 4152                } else {
 4153                    log::error!(
 4154                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4155                    );
 4156                }
 4157            }
 4158            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4159                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4160                window.defer(cx, move |window, cx| {
 4161                    let dock = dock.read(cx);
 4162                    if let Some(panel) = dock.active_panel() {
 4163                        panel.panel_focus_handle(cx).focus(window, cx);
 4164                    } else {
 4165                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4166                    }
 4167                })
 4168            }
 4169            None => {}
 4170        }
 4171    }
 4172
 4173    pub fn move_item_to_pane_in_direction(
 4174        &mut self,
 4175        action: &MoveItemToPaneInDirection,
 4176        window: &mut Window,
 4177        cx: &mut Context<Self>,
 4178    ) {
 4179        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4180            Some(destination) => destination,
 4181            None => {
 4182                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4183                    return;
 4184                }
 4185                let new_pane = self.add_pane(window, cx);
 4186                if self
 4187                    .center
 4188                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4189                    .log_err()
 4190                    .is_none()
 4191                {
 4192                    return;
 4193                };
 4194                new_pane
 4195            }
 4196        };
 4197
 4198        if action.clone {
 4199            if self
 4200                .active_pane
 4201                .read(cx)
 4202                .active_item()
 4203                .is_some_and(|item| item.can_split(cx))
 4204            {
 4205                clone_active_item(
 4206                    self.database_id(),
 4207                    &self.active_pane,
 4208                    &destination,
 4209                    action.focus,
 4210                    window,
 4211                    cx,
 4212                );
 4213                return;
 4214            }
 4215        }
 4216        move_active_item(
 4217            &self.active_pane,
 4218            &destination,
 4219            action.focus,
 4220            true,
 4221            window,
 4222            cx,
 4223        );
 4224    }
 4225
 4226    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4227        self.center.bounding_box_for_pane(pane)
 4228    }
 4229
 4230    pub fn find_pane_in_direction(
 4231        &mut self,
 4232        direction: SplitDirection,
 4233        cx: &App,
 4234    ) -> Option<Entity<Pane>> {
 4235        self.center
 4236            .find_pane_in_direction(&self.active_pane, direction, cx)
 4237            .cloned()
 4238    }
 4239
 4240    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4241        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4242            self.center.swap(&self.active_pane, &to, cx);
 4243            cx.notify();
 4244        }
 4245    }
 4246
 4247    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4248        if self
 4249            .center
 4250            .move_to_border(&self.active_pane, direction, cx)
 4251            .unwrap()
 4252        {
 4253            cx.notify();
 4254        }
 4255    }
 4256
 4257    pub fn resize_pane(
 4258        &mut self,
 4259        axis: gpui::Axis,
 4260        amount: Pixels,
 4261        window: &mut Window,
 4262        cx: &mut Context<Self>,
 4263    ) {
 4264        let docks = self.all_docks();
 4265        let active_dock = docks
 4266            .into_iter()
 4267            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4268
 4269        if let Some(dock) = active_dock {
 4270            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4271                return;
 4272            };
 4273            match dock.read(cx).position() {
 4274                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4275                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4276                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4277            }
 4278        } else {
 4279            self.center
 4280                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4281        }
 4282        cx.notify();
 4283    }
 4284
 4285    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4286        self.center.reset_pane_sizes(cx);
 4287        cx.notify();
 4288    }
 4289
 4290    fn handle_pane_focused(
 4291        &mut self,
 4292        pane: Entity<Pane>,
 4293        window: &mut Window,
 4294        cx: &mut Context<Self>,
 4295    ) {
 4296        // This is explicitly hoisted out of the following check for pane identity as
 4297        // terminal panel panes are not registered as a center panes.
 4298        self.status_bar.update(cx, |status_bar, cx| {
 4299            status_bar.set_active_pane(&pane, window, cx);
 4300        });
 4301        if self.active_pane != pane {
 4302            self.set_active_pane(&pane, window, cx);
 4303        }
 4304
 4305        if self.last_active_center_pane.is_none() {
 4306            self.last_active_center_pane = Some(pane.downgrade());
 4307        }
 4308
 4309        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4310        if pane.read(cx).is_zoomed() {
 4311            self.zoomed = Some(pane.downgrade().into());
 4312        } else {
 4313            self.zoomed = None;
 4314        }
 4315        self.zoomed_position = None;
 4316        cx.emit(Event::ZoomChanged);
 4317        self.update_active_view_for_followers(window, cx);
 4318        pane.update(cx, |pane, _| {
 4319            pane.track_alternate_file_items();
 4320        });
 4321
 4322        cx.notify();
 4323    }
 4324
 4325    fn set_active_pane(
 4326        &mut self,
 4327        pane: &Entity<Pane>,
 4328        window: &mut Window,
 4329        cx: &mut Context<Self>,
 4330    ) {
 4331        self.active_pane = pane.clone();
 4332        self.active_item_path_changed(true, window, cx);
 4333        self.last_active_center_pane = Some(pane.downgrade());
 4334    }
 4335
 4336    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4337        self.update_active_view_for_followers(window, cx);
 4338    }
 4339
 4340    fn handle_pane_event(
 4341        &mut self,
 4342        pane: &Entity<Pane>,
 4343        event: &pane::Event,
 4344        window: &mut Window,
 4345        cx: &mut Context<Self>,
 4346    ) {
 4347        let mut serialize_workspace = true;
 4348        match event {
 4349            pane::Event::AddItem { item } => {
 4350                item.added_to_pane(self, pane.clone(), window, cx);
 4351                cx.emit(Event::ItemAdded {
 4352                    item: item.boxed_clone(),
 4353                });
 4354            }
 4355            pane::Event::Split { direction, mode } => {
 4356                match mode {
 4357                    SplitMode::ClonePane => {
 4358                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4359                            .detach();
 4360                    }
 4361                    SplitMode::EmptyPane => {
 4362                        self.split_pane(pane.clone(), *direction, window, cx);
 4363                    }
 4364                    SplitMode::MovePane => {
 4365                        self.split_and_move(pane.clone(), *direction, window, cx);
 4366                    }
 4367                };
 4368            }
 4369            pane::Event::JoinIntoNext => {
 4370                self.join_pane_into_next(pane.clone(), window, cx);
 4371            }
 4372            pane::Event::JoinAll => {
 4373                self.join_all_panes(window, cx);
 4374            }
 4375            pane::Event::Remove { focus_on_pane } => {
 4376                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4377            }
 4378            pane::Event::ActivateItem {
 4379                local,
 4380                focus_changed,
 4381            } => {
 4382                window.invalidate_character_coordinates();
 4383
 4384                pane.update(cx, |pane, _| {
 4385                    pane.track_alternate_file_items();
 4386                });
 4387                if *local {
 4388                    self.unfollow_in_pane(pane, window, cx);
 4389                }
 4390                serialize_workspace = *focus_changed || pane != self.active_pane();
 4391                if pane == self.active_pane() {
 4392                    self.active_item_path_changed(*focus_changed, window, cx);
 4393                    self.update_active_view_for_followers(window, cx);
 4394                } else if *local {
 4395                    self.set_active_pane(pane, window, cx);
 4396                }
 4397            }
 4398            pane::Event::UserSavedItem { item, save_intent } => {
 4399                cx.emit(Event::UserSavedItem {
 4400                    pane: pane.downgrade(),
 4401                    item: item.boxed_clone(),
 4402                    save_intent: *save_intent,
 4403                });
 4404                serialize_workspace = false;
 4405            }
 4406            pane::Event::ChangeItemTitle => {
 4407                if *pane == self.active_pane {
 4408                    self.active_item_path_changed(false, window, cx);
 4409                }
 4410                serialize_workspace = false;
 4411            }
 4412            pane::Event::RemovedItem { item } => {
 4413                cx.emit(Event::ActiveItemChanged);
 4414                self.update_window_edited(window, cx);
 4415                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4416                    && entry.get().entity_id() == pane.entity_id()
 4417                {
 4418                    entry.remove();
 4419                }
 4420                cx.emit(Event::ItemRemoved {
 4421                    item_id: item.item_id(),
 4422                });
 4423            }
 4424            pane::Event::Focus => {
 4425                window.invalidate_character_coordinates();
 4426                self.handle_pane_focused(pane.clone(), window, cx);
 4427            }
 4428            pane::Event::ZoomIn => {
 4429                if *pane == self.active_pane {
 4430                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4431                    if pane.read(cx).has_focus(window, cx) {
 4432                        self.zoomed = Some(pane.downgrade().into());
 4433                        self.zoomed_position = None;
 4434                        cx.emit(Event::ZoomChanged);
 4435                    }
 4436                    cx.notify();
 4437                }
 4438            }
 4439            pane::Event::ZoomOut => {
 4440                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4441                if self.zoomed_position.is_none() {
 4442                    self.zoomed = None;
 4443                    cx.emit(Event::ZoomChanged);
 4444                }
 4445                cx.notify();
 4446            }
 4447            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4448        }
 4449
 4450        if serialize_workspace {
 4451            self.serialize_workspace(window, cx);
 4452        }
 4453    }
 4454
 4455    pub fn unfollow_in_pane(
 4456        &mut self,
 4457        pane: &Entity<Pane>,
 4458        window: &mut Window,
 4459        cx: &mut Context<Workspace>,
 4460    ) -> Option<CollaboratorId> {
 4461        let leader_id = self.leader_for_pane(pane)?;
 4462        self.unfollow(leader_id, window, cx);
 4463        Some(leader_id)
 4464    }
 4465
 4466    pub fn split_pane(
 4467        &mut self,
 4468        pane_to_split: Entity<Pane>,
 4469        split_direction: SplitDirection,
 4470        window: &mut Window,
 4471        cx: &mut Context<Self>,
 4472    ) -> Entity<Pane> {
 4473        let new_pane = self.add_pane(window, cx);
 4474        self.center
 4475            .split(&pane_to_split, &new_pane, split_direction, cx)
 4476            .unwrap();
 4477        cx.notify();
 4478        new_pane
 4479    }
 4480
 4481    pub fn split_and_move(
 4482        &mut self,
 4483        pane: Entity<Pane>,
 4484        direction: SplitDirection,
 4485        window: &mut Window,
 4486        cx: &mut Context<Self>,
 4487    ) {
 4488        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4489            return;
 4490        };
 4491        let new_pane = self.add_pane(window, cx);
 4492        new_pane.update(cx, |pane, cx| {
 4493            pane.add_item(item, true, true, None, window, cx)
 4494        });
 4495        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4496        cx.notify();
 4497    }
 4498
 4499    pub fn split_and_clone(
 4500        &mut self,
 4501        pane: Entity<Pane>,
 4502        direction: SplitDirection,
 4503        window: &mut Window,
 4504        cx: &mut Context<Self>,
 4505    ) -> Task<Option<Entity<Pane>>> {
 4506        let Some(item) = pane.read(cx).active_item() else {
 4507            return Task::ready(None);
 4508        };
 4509        if !item.can_split(cx) {
 4510            return Task::ready(None);
 4511        }
 4512        let task = item.clone_on_split(self.database_id(), window, cx);
 4513        cx.spawn_in(window, async move |this, cx| {
 4514            if let Some(clone) = task.await {
 4515                this.update_in(cx, |this, window, cx| {
 4516                    let new_pane = this.add_pane(window, cx);
 4517                    new_pane.update(cx, |pane, cx| {
 4518                        pane.add_item(clone, true, true, None, window, cx)
 4519                    });
 4520                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4521                    cx.notify();
 4522                    new_pane
 4523                })
 4524                .ok()
 4525            } else {
 4526                None
 4527            }
 4528        })
 4529    }
 4530
 4531    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4532        let active_item = self.active_pane.read(cx).active_item();
 4533        for pane in &self.panes {
 4534            join_pane_into_active(&self.active_pane, pane, window, cx);
 4535        }
 4536        if let Some(active_item) = active_item {
 4537            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4538        }
 4539        cx.notify();
 4540    }
 4541
 4542    pub fn join_pane_into_next(
 4543        &mut self,
 4544        pane: Entity<Pane>,
 4545        window: &mut Window,
 4546        cx: &mut Context<Self>,
 4547    ) {
 4548        let next_pane = self
 4549            .find_pane_in_direction(SplitDirection::Right, cx)
 4550            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4551            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4552            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4553        let Some(next_pane) = next_pane else {
 4554            return;
 4555        };
 4556        move_all_items(&pane, &next_pane, window, cx);
 4557        cx.notify();
 4558    }
 4559
 4560    fn remove_pane(
 4561        &mut self,
 4562        pane: Entity<Pane>,
 4563        focus_on: Option<Entity<Pane>>,
 4564        window: &mut Window,
 4565        cx: &mut Context<Self>,
 4566    ) {
 4567        if self.center.remove(&pane, cx).unwrap() {
 4568            self.force_remove_pane(&pane, &focus_on, window, cx);
 4569            self.unfollow_in_pane(&pane, window, cx);
 4570            self.last_leaders_by_pane.remove(&pane.downgrade());
 4571            for removed_item in pane.read(cx).items() {
 4572                self.panes_by_item.remove(&removed_item.item_id());
 4573            }
 4574
 4575            cx.notify();
 4576        } else {
 4577            self.active_item_path_changed(true, window, cx);
 4578        }
 4579        cx.emit(Event::PaneRemoved);
 4580    }
 4581
 4582    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4583        &mut self.panes
 4584    }
 4585
 4586    pub fn panes(&self) -> &[Entity<Pane>] {
 4587        &self.panes
 4588    }
 4589
 4590    pub fn active_pane(&self) -> &Entity<Pane> {
 4591        &self.active_pane
 4592    }
 4593
 4594    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4595        for dock in self.all_docks() {
 4596            if dock.focus_handle(cx).contains_focused(window, cx)
 4597                && let Some(pane) = dock
 4598                    .read(cx)
 4599                    .active_panel()
 4600                    .and_then(|panel| panel.pane(cx))
 4601            {
 4602                return pane;
 4603            }
 4604        }
 4605        self.active_pane().clone()
 4606    }
 4607
 4608    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4609        self.find_pane_in_direction(SplitDirection::Right, cx)
 4610            .unwrap_or_else(|| {
 4611                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4612            })
 4613    }
 4614
 4615    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4616        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4617        weak_pane.upgrade()
 4618    }
 4619
 4620    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4621        self.follower_states.retain(|leader_id, state| {
 4622            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4623                for item in state.items_by_leader_view_id.values() {
 4624                    item.view.set_leader_id(None, window, cx);
 4625                }
 4626                false
 4627            } else {
 4628                true
 4629            }
 4630        });
 4631        cx.notify();
 4632    }
 4633
 4634    pub fn start_following(
 4635        &mut self,
 4636        leader_id: impl Into<CollaboratorId>,
 4637        window: &mut Window,
 4638        cx: &mut Context<Self>,
 4639    ) -> Option<Task<Result<()>>> {
 4640        let leader_id = leader_id.into();
 4641        let pane = self.active_pane().clone();
 4642
 4643        self.last_leaders_by_pane
 4644            .insert(pane.downgrade(), leader_id);
 4645        self.unfollow(leader_id, window, cx);
 4646        self.unfollow_in_pane(&pane, window, cx);
 4647        self.follower_states.insert(
 4648            leader_id,
 4649            FollowerState {
 4650                center_pane: pane.clone(),
 4651                dock_pane: None,
 4652                active_view_id: None,
 4653                items_by_leader_view_id: Default::default(),
 4654            },
 4655        );
 4656        cx.notify();
 4657
 4658        match leader_id {
 4659            CollaboratorId::PeerId(leader_peer_id) => {
 4660                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4661                let project_id = self.project.read(cx).remote_id();
 4662                let request = self.app_state.client.request(proto::Follow {
 4663                    room_id,
 4664                    project_id,
 4665                    leader_id: Some(leader_peer_id),
 4666                });
 4667
 4668                Some(cx.spawn_in(window, async move |this, cx| {
 4669                    let response = request.await?;
 4670                    this.update(cx, |this, _| {
 4671                        let state = this
 4672                            .follower_states
 4673                            .get_mut(&leader_id)
 4674                            .context("following interrupted")?;
 4675                        state.active_view_id = response
 4676                            .active_view
 4677                            .as_ref()
 4678                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4679                        anyhow::Ok(())
 4680                    })??;
 4681                    if let Some(view) = response.active_view {
 4682                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4683                    }
 4684                    this.update_in(cx, |this, window, cx| {
 4685                        this.leader_updated(leader_id, window, cx)
 4686                    })?;
 4687                    Ok(())
 4688                }))
 4689            }
 4690            CollaboratorId::Agent => {
 4691                self.leader_updated(leader_id, window, cx)?;
 4692                Some(Task::ready(Ok(())))
 4693            }
 4694        }
 4695    }
 4696
 4697    pub fn follow_next_collaborator(
 4698        &mut self,
 4699        _: &FollowNextCollaborator,
 4700        window: &mut Window,
 4701        cx: &mut Context<Self>,
 4702    ) {
 4703        let collaborators = self.project.read(cx).collaborators();
 4704        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4705            let mut collaborators = collaborators.keys().copied();
 4706            for peer_id in collaborators.by_ref() {
 4707                if CollaboratorId::PeerId(peer_id) == leader_id {
 4708                    break;
 4709                }
 4710            }
 4711            collaborators.next().map(CollaboratorId::PeerId)
 4712        } else if let Some(last_leader_id) =
 4713            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4714        {
 4715            match last_leader_id {
 4716                CollaboratorId::PeerId(peer_id) => {
 4717                    if collaborators.contains_key(peer_id) {
 4718                        Some(*last_leader_id)
 4719                    } else {
 4720                        None
 4721                    }
 4722                }
 4723                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4724            }
 4725        } else {
 4726            None
 4727        };
 4728
 4729        let pane = self.active_pane.clone();
 4730        let Some(leader_id) = next_leader_id.or_else(|| {
 4731            Some(CollaboratorId::PeerId(
 4732                collaborators.keys().copied().next()?,
 4733            ))
 4734        }) else {
 4735            return;
 4736        };
 4737        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4738            return;
 4739        }
 4740        if let Some(task) = self.start_following(leader_id, window, cx) {
 4741            task.detach_and_log_err(cx)
 4742        }
 4743    }
 4744
 4745    pub fn follow(
 4746        &mut self,
 4747        leader_id: impl Into<CollaboratorId>,
 4748        window: &mut Window,
 4749        cx: &mut Context<Self>,
 4750    ) {
 4751        let leader_id = leader_id.into();
 4752
 4753        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4754            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4755                return;
 4756            };
 4757            let room = room.read(cx);
 4758            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4759                return;
 4760            };
 4761
 4762            let project = self.project.read(cx);
 4763
 4764            let other_project_id = match remote_participant.location {
 4765                call::ParticipantLocation::External => None,
 4766                call::ParticipantLocation::UnsharedProject => None,
 4767                call::ParticipantLocation::SharedProject { project_id } => {
 4768                    if Some(project_id) == project.remote_id() {
 4769                        None
 4770                    } else {
 4771                        Some(project_id)
 4772                    }
 4773                }
 4774            };
 4775
 4776            // if they are active in another project, follow there.
 4777            if let Some(project_id) = other_project_id {
 4778                let app_state = self.app_state.clone();
 4779                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4780                    .detach_and_log_err(cx);
 4781            }
 4782        }
 4783
 4784        // if you're already following, find the right pane and focus it.
 4785        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4786            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4787
 4788            return;
 4789        }
 4790
 4791        // Otherwise, follow.
 4792        if let Some(task) = self.start_following(leader_id, window, cx) {
 4793            task.detach_and_log_err(cx)
 4794        }
 4795    }
 4796
 4797    pub fn unfollow(
 4798        &mut self,
 4799        leader_id: impl Into<CollaboratorId>,
 4800        window: &mut Window,
 4801        cx: &mut Context<Self>,
 4802    ) -> Option<()> {
 4803        cx.notify();
 4804
 4805        let leader_id = leader_id.into();
 4806        let state = self.follower_states.remove(&leader_id)?;
 4807        for (_, item) in state.items_by_leader_view_id {
 4808            item.view.set_leader_id(None, window, cx);
 4809        }
 4810
 4811        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4812            let project_id = self.project.read(cx).remote_id();
 4813            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4814            self.app_state
 4815                .client
 4816                .send(proto::Unfollow {
 4817                    room_id,
 4818                    project_id,
 4819                    leader_id: Some(leader_peer_id),
 4820                })
 4821                .log_err();
 4822        }
 4823
 4824        Some(())
 4825    }
 4826
 4827    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4828        self.follower_states.contains_key(&id.into())
 4829    }
 4830
 4831    fn active_item_path_changed(
 4832        &mut self,
 4833        focus_changed: bool,
 4834        window: &mut Window,
 4835        cx: &mut Context<Self>,
 4836    ) {
 4837        cx.emit(Event::ActiveItemChanged);
 4838        let active_entry = self.active_project_path(cx);
 4839        self.project.update(cx, |project, cx| {
 4840            project.set_active_path(active_entry.clone(), cx)
 4841        });
 4842
 4843        if focus_changed && let Some(project_path) = &active_entry {
 4844            let git_store_entity = self.project.read(cx).git_store().clone();
 4845            git_store_entity.update(cx, |git_store, cx| {
 4846                git_store.set_active_repo_for_path(project_path, cx);
 4847            });
 4848        }
 4849
 4850        self.update_window_title(window, cx);
 4851    }
 4852
 4853    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4854        let project = self.project().read(cx);
 4855        let mut title = String::new();
 4856
 4857        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4858            let name = {
 4859                let settings_location = SettingsLocation {
 4860                    worktree_id: worktree.read(cx).id(),
 4861                    path: RelPath::empty(),
 4862                };
 4863
 4864                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4865                match &settings.project_name {
 4866                    Some(name) => name.as_str(),
 4867                    None => worktree.read(cx).root_name_str(),
 4868                }
 4869            };
 4870            if i > 0 {
 4871                title.push_str(", ");
 4872            }
 4873            title.push_str(name);
 4874        }
 4875
 4876        if title.is_empty() {
 4877            title = "empty project".to_string();
 4878        }
 4879
 4880        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4881            let filename = path.path.file_name().or_else(|| {
 4882                Some(
 4883                    project
 4884                        .worktree_for_id(path.worktree_id, cx)?
 4885                        .read(cx)
 4886                        .root_name_str(),
 4887                )
 4888            });
 4889
 4890            if let Some(filename) = filename {
 4891                title.push_str("");
 4892                title.push_str(filename.as_ref());
 4893            }
 4894        }
 4895
 4896        if project.is_via_collab() {
 4897            title.push_str("");
 4898        } else if project.is_shared() {
 4899            title.push_str("");
 4900        }
 4901
 4902        if let Some(last_title) = self.last_window_title.as_ref()
 4903            && &title == last_title
 4904        {
 4905            return;
 4906        }
 4907        window.set_window_title(&title);
 4908        SystemWindowTabController::update_tab_title(
 4909            cx,
 4910            window.window_handle().window_id(),
 4911            SharedString::from(&title),
 4912        );
 4913        self.last_window_title = Some(title);
 4914    }
 4915
 4916    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4917        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4918        if is_edited != self.window_edited {
 4919            self.window_edited = is_edited;
 4920            window.set_window_edited(self.window_edited)
 4921        }
 4922    }
 4923
 4924    fn update_item_dirty_state(
 4925        &mut self,
 4926        item: &dyn ItemHandle,
 4927        window: &mut Window,
 4928        cx: &mut App,
 4929    ) {
 4930        let is_dirty = item.is_dirty(cx);
 4931        let item_id = item.item_id();
 4932        let was_dirty = self.dirty_items.contains_key(&item_id);
 4933        if is_dirty == was_dirty {
 4934            return;
 4935        }
 4936        if was_dirty {
 4937            self.dirty_items.remove(&item_id);
 4938            self.update_window_edited(window, cx);
 4939            return;
 4940        }
 4941        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4942            let s = item.on_release(
 4943                cx,
 4944                Box::new(move |cx| {
 4945                    window_handle
 4946                        .update(cx, |this, window, cx| {
 4947                            this.dirty_items.remove(&item_id);
 4948                            this.update_window_edited(window, cx)
 4949                        })
 4950                        .ok();
 4951                }),
 4952            );
 4953            self.dirty_items.insert(item_id, s);
 4954            self.update_window_edited(window, cx);
 4955        }
 4956    }
 4957
 4958    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4959        if self.notifications.is_empty() {
 4960            None
 4961        } else {
 4962            Some(
 4963                div()
 4964                    .absolute()
 4965                    .right_3()
 4966                    .bottom_3()
 4967                    .w_112()
 4968                    .h_full()
 4969                    .flex()
 4970                    .flex_col()
 4971                    .justify_end()
 4972                    .gap_2()
 4973                    .children(
 4974                        self.notifications
 4975                            .iter()
 4976                            .map(|(_, notification)| notification.clone().into_any()),
 4977                    ),
 4978            )
 4979        }
 4980    }
 4981
 4982    // RPC handlers
 4983
 4984    fn active_view_for_follower(
 4985        &self,
 4986        follower_project_id: Option<u64>,
 4987        window: &mut Window,
 4988        cx: &mut Context<Self>,
 4989    ) -> Option<proto::View> {
 4990        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4991        let item = item?;
 4992        let leader_id = self
 4993            .pane_for(&*item)
 4994            .and_then(|pane| self.leader_for_pane(&pane));
 4995        let leader_peer_id = match leader_id {
 4996            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4997            Some(CollaboratorId::Agent) | None => None,
 4998        };
 4999
 5000        let item_handle = item.to_followable_item_handle(cx)?;
 5001        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5002        let variant = item_handle.to_state_proto(window, cx)?;
 5003
 5004        if item_handle.is_project_item(window, cx)
 5005            && (follower_project_id.is_none()
 5006                || follower_project_id != self.project.read(cx).remote_id())
 5007        {
 5008            return None;
 5009        }
 5010
 5011        Some(proto::View {
 5012            id: id.to_proto(),
 5013            leader_id: leader_peer_id,
 5014            variant: Some(variant),
 5015            panel_id: panel_id.map(|id| id as i32),
 5016        })
 5017    }
 5018
 5019    fn handle_follow(
 5020        &mut self,
 5021        follower_project_id: Option<u64>,
 5022        window: &mut Window,
 5023        cx: &mut Context<Self>,
 5024    ) -> proto::FollowResponse {
 5025        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5026
 5027        cx.notify();
 5028        proto::FollowResponse {
 5029            views: active_view.iter().cloned().collect(),
 5030            active_view,
 5031        }
 5032    }
 5033
 5034    fn handle_update_followers(
 5035        &mut self,
 5036        leader_id: PeerId,
 5037        message: proto::UpdateFollowers,
 5038        _window: &mut Window,
 5039        _cx: &mut Context<Self>,
 5040    ) {
 5041        self.leader_updates_tx
 5042            .unbounded_send((leader_id, message))
 5043            .ok();
 5044    }
 5045
 5046    async fn process_leader_update(
 5047        this: &WeakEntity<Self>,
 5048        leader_id: PeerId,
 5049        update: proto::UpdateFollowers,
 5050        cx: &mut AsyncWindowContext,
 5051    ) -> Result<()> {
 5052        match update.variant.context("invalid update")? {
 5053            proto::update_followers::Variant::CreateView(view) => {
 5054                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5055                let should_add_view = this.update(cx, |this, _| {
 5056                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5057                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5058                    } else {
 5059                        anyhow::Ok(false)
 5060                    }
 5061                })??;
 5062
 5063                if should_add_view {
 5064                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5065                }
 5066            }
 5067            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5068                let should_add_view = this.update(cx, |this, _| {
 5069                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5070                        state.active_view_id = update_active_view
 5071                            .view
 5072                            .as_ref()
 5073                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5074
 5075                        if state.active_view_id.is_some_and(|view_id| {
 5076                            !state.items_by_leader_view_id.contains_key(&view_id)
 5077                        }) {
 5078                            anyhow::Ok(true)
 5079                        } else {
 5080                            anyhow::Ok(false)
 5081                        }
 5082                    } else {
 5083                        anyhow::Ok(false)
 5084                    }
 5085                })??;
 5086
 5087                if should_add_view && let Some(view) = update_active_view.view {
 5088                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5089                }
 5090            }
 5091            proto::update_followers::Variant::UpdateView(update_view) => {
 5092                let variant = update_view.variant.context("missing update view variant")?;
 5093                let id = update_view.id.context("missing update view id")?;
 5094                let mut tasks = Vec::new();
 5095                this.update_in(cx, |this, window, cx| {
 5096                    let project = this.project.clone();
 5097                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5098                        let view_id = ViewId::from_proto(id.clone())?;
 5099                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5100                            tasks.push(item.view.apply_update_proto(
 5101                                &project,
 5102                                variant.clone(),
 5103                                window,
 5104                                cx,
 5105                            ));
 5106                        }
 5107                    }
 5108                    anyhow::Ok(())
 5109                })??;
 5110                try_join_all(tasks).await.log_err();
 5111            }
 5112        }
 5113        this.update_in(cx, |this, window, cx| {
 5114            this.leader_updated(leader_id, window, cx)
 5115        })?;
 5116        Ok(())
 5117    }
 5118
 5119    async fn add_view_from_leader(
 5120        this: WeakEntity<Self>,
 5121        leader_id: PeerId,
 5122        view: &proto::View,
 5123        cx: &mut AsyncWindowContext,
 5124    ) -> Result<()> {
 5125        let this = this.upgrade().context("workspace dropped")?;
 5126
 5127        let Some(id) = view.id.clone() else {
 5128            anyhow::bail!("no id for view");
 5129        };
 5130        let id = ViewId::from_proto(id)?;
 5131        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5132
 5133        let pane = this.update(cx, |this, _cx| {
 5134            let state = this
 5135                .follower_states
 5136                .get(&leader_id.into())
 5137                .context("stopped following")?;
 5138            anyhow::Ok(state.pane().clone())
 5139        })?;
 5140        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5141            let client = this.read(cx).client().clone();
 5142            pane.items().find_map(|item| {
 5143                let item = item.to_followable_item_handle(cx)?;
 5144                if item.remote_id(&client, window, cx) == Some(id) {
 5145                    Some(item)
 5146                } else {
 5147                    None
 5148                }
 5149            })
 5150        })?;
 5151        let item = if let Some(existing_item) = existing_item {
 5152            existing_item
 5153        } else {
 5154            let variant = view.variant.clone();
 5155            anyhow::ensure!(variant.is_some(), "missing view variant");
 5156
 5157            let task = cx.update(|window, cx| {
 5158                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5159            })?;
 5160
 5161            let Some(task) = task else {
 5162                anyhow::bail!(
 5163                    "failed to construct view from leader (maybe from a different version of zed?)"
 5164                );
 5165            };
 5166
 5167            let mut new_item = task.await?;
 5168            pane.update_in(cx, |pane, window, cx| {
 5169                let mut item_to_remove = None;
 5170                for (ix, item) in pane.items().enumerate() {
 5171                    if let Some(item) = item.to_followable_item_handle(cx) {
 5172                        match new_item.dedup(item.as_ref(), window, cx) {
 5173                            Some(item::Dedup::KeepExisting) => {
 5174                                new_item =
 5175                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5176                                break;
 5177                            }
 5178                            Some(item::Dedup::ReplaceExisting) => {
 5179                                item_to_remove = Some((ix, item.item_id()));
 5180                                break;
 5181                            }
 5182                            None => {}
 5183                        }
 5184                    }
 5185                }
 5186
 5187                if let Some((ix, id)) = item_to_remove {
 5188                    pane.remove_item(id, false, false, window, cx);
 5189                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5190                }
 5191            })?;
 5192
 5193            new_item
 5194        };
 5195
 5196        this.update_in(cx, |this, window, cx| {
 5197            let state = this.follower_states.get_mut(&leader_id.into())?;
 5198            item.set_leader_id(Some(leader_id.into()), window, cx);
 5199            state.items_by_leader_view_id.insert(
 5200                id,
 5201                FollowerView {
 5202                    view: item,
 5203                    location: panel_id,
 5204                },
 5205            );
 5206
 5207            Some(())
 5208        })
 5209        .context("no follower state")?;
 5210
 5211        Ok(())
 5212    }
 5213
 5214    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5215        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5216            return;
 5217        };
 5218
 5219        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5220            let buffer_entity_id = agent_location.buffer.entity_id();
 5221            let view_id = ViewId {
 5222                creator: CollaboratorId::Agent,
 5223                id: buffer_entity_id.as_u64(),
 5224            };
 5225            follower_state.active_view_id = Some(view_id);
 5226
 5227            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5228                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5229                hash_map::Entry::Vacant(entry) => {
 5230                    let existing_view =
 5231                        follower_state
 5232                            .center_pane
 5233                            .read(cx)
 5234                            .items()
 5235                            .find_map(|item| {
 5236                                let item = item.to_followable_item_handle(cx)?;
 5237                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5238                                    && item.project_item_model_ids(cx).as_slice()
 5239                                        == [buffer_entity_id]
 5240                                {
 5241                                    Some(item)
 5242                                } else {
 5243                                    None
 5244                                }
 5245                            });
 5246                    let view = existing_view.or_else(|| {
 5247                        agent_location.buffer.upgrade().and_then(|buffer| {
 5248                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5249                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5250                            })?
 5251                            .to_followable_item_handle(cx)
 5252                        })
 5253                    });
 5254
 5255                    view.map(|view| {
 5256                        entry.insert(FollowerView {
 5257                            view,
 5258                            location: None,
 5259                        })
 5260                    })
 5261                }
 5262            };
 5263
 5264            if let Some(item) = item {
 5265                item.view
 5266                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5267                item.view
 5268                    .update_agent_location(agent_location.position, window, cx);
 5269            }
 5270        } else {
 5271            follower_state.active_view_id = None;
 5272        }
 5273
 5274        self.leader_updated(CollaboratorId::Agent, window, cx);
 5275    }
 5276
 5277    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5278        let mut is_project_item = true;
 5279        let mut update = proto::UpdateActiveView::default();
 5280        if window.is_window_active() {
 5281            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5282
 5283            if let Some(item) = active_item
 5284                && item.item_focus_handle(cx).contains_focused(window, cx)
 5285            {
 5286                let leader_id = self
 5287                    .pane_for(&*item)
 5288                    .and_then(|pane| self.leader_for_pane(&pane));
 5289                let leader_peer_id = match leader_id {
 5290                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5291                    Some(CollaboratorId::Agent) | None => None,
 5292                };
 5293
 5294                if let Some(item) = item.to_followable_item_handle(cx) {
 5295                    let id = item
 5296                        .remote_id(&self.app_state.client, window, cx)
 5297                        .map(|id| id.to_proto());
 5298
 5299                    if let Some(id) = id
 5300                        && let Some(variant) = item.to_state_proto(window, cx)
 5301                    {
 5302                        let view = Some(proto::View {
 5303                            id,
 5304                            leader_id: leader_peer_id,
 5305                            variant: Some(variant),
 5306                            panel_id: panel_id.map(|id| id as i32),
 5307                        });
 5308
 5309                        is_project_item = item.is_project_item(window, cx);
 5310                        update = proto::UpdateActiveView { view };
 5311                    };
 5312                }
 5313            }
 5314        }
 5315
 5316        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5317        if active_view_id != self.last_active_view_id.as_ref() {
 5318            self.last_active_view_id = active_view_id.cloned();
 5319            self.update_followers(
 5320                is_project_item,
 5321                proto::update_followers::Variant::UpdateActiveView(update),
 5322                window,
 5323                cx,
 5324            );
 5325        }
 5326    }
 5327
 5328    fn active_item_for_followers(
 5329        &self,
 5330        window: &mut Window,
 5331        cx: &mut App,
 5332    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5333        let mut active_item = None;
 5334        let mut panel_id = None;
 5335        for dock in self.all_docks() {
 5336            if dock.focus_handle(cx).contains_focused(window, cx)
 5337                && let Some(panel) = dock.read(cx).active_panel()
 5338                && let Some(pane) = panel.pane(cx)
 5339                && let Some(item) = pane.read(cx).active_item()
 5340            {
 5341                active_item = Some(item);
 5342                panel_id = panel.remote_id();
 5343                break;
 5344            }
 5345        }
 5346
 5347        if active_item.is_none() {
 5348            active_item = self.active_pane().read(cx).active_item();
 5349        }
 5350        (active_item, panel_id)
 5351    }
 5352
 5353    fn update_followers(
 5354        &self,
 5355        project_only: bool,
 5356        update: proto::update_followers::Variant,
 5357        _: &mut Window,
 5358        cx: &mut App,
 5359    ) -> Option<()> {
 5360        // If this update only applies to for followers in the current project,
 5361        // then skip it unless this project is shared. If it applies to all
 5362        // followers, regardless of project, then set `project_id` to none,
 5363        // indicating that it goes to all followers.
 5364        let project_id = if project_only {
 5365            Some(self.project.read(cx).remote_id()?)
 5366        } else {
 5367            None
 5368        };
 5369        self.app_state().workspace_store.update(cx, |store, cx| {
 5370            store.update_followers(project_id, update, cx)
 5371        })
 5372    }
 5373
 5374    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5375        self.follower_states.iter().find_map(|(leader_id, state)| {
 5376            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5377                Some(*leader_id)
 5378            } else {
 5379                None
 5380            }
 5381        })
 5382    }
 5383
 5384    fn leader_updated(
 5385        &mut self,
 5386        leader_id: impl Into<CollaboratorId>,
 5387        window: &mut Window,
 5388        cx: &mut Context<Self>,
 5389    ) -> Option<Box<dyn ItemHandle>> {
 5390        cx.notify();
 5391
 5392        let leader_id = leader_id.into();
 5393        let (panel_id, item) = match leader_id {
 5394            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5395            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5396        };
 5397
 5398        let state = self.follower_states.get(&leader_id)?;
 5399        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5400        let pane;
 5401        if let Some(panel_id) = panel_id {
 5402            pane = self
 5403                .activate_panel_for_proto_id(panel_id, window, cx)?
 5404                .pane(cx)?;
 5405            let state = self.follower_states.get_mut(&leader_id)?;
 5406            state.dock_pane = Some(pane.clone());
 5407        } else {
 5408            pane = state.center_pane.clone();
 5409            let state = self.follower_states.get_mut(&leader_id)?;
 5410            if let Some(dock_pane) = state.dock_pane.take() {
 5411                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5412            }
 5413        }
 5414
 5415        pane.update(cx, |pane, cx| {
 5416            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5417            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5418                pane.activate_item(index, false, false, window, cx);
 5419            } else {
 5420                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5421            }
 5422
 5423            if focus_active_item {
 5424                pane.focus_active_item(window, cx)
 5425            }
 5426        });
 5427
 5428        Some(item)
 5429    }
 5430
 5431    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5432        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5433        let active_view_id = state.active_view_id?;
 5434        Some(
 5435            state
 5436                .items_by_leader_view_id
 5437                .get(&active_view_id)?
 5438                .view
 5439                .boxed_clone(),
 5440        )
 5441    }
 5442
 5443    fn active_item_for_peer(
 5444        &self,
 5445        peer_id: PeerId,
 5446        window: &mut Window,
 5447        cx: &mut Context<Self>,
 5448    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5449        let call = self.active_call()?;
 5450        let room = call.read(cx).room()?.read(cx);
 5451        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5452        let leader_in_this_app;
 5453        let leader_in_this_project;
 5454        match participant.location {
 5455            call::ParticipantLocation::SharedProject { project_id } => {
 5456                leader_in_this_app = true;
 5457                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5458            }
 5459            call::ParticipantLocation::UnsharedProject => {
 5460                leader_in_this_app = true;
 5461                leader_in_this_project = false;
 5462            }
 5463            call::ParticipantLocation::External => {
 5464                leader_in_this_app = false;
 5465                leader_in_this_project = false;
 5466            }
 5467        };
 5468        let state = self.follower_states.get(&peer_id.into())?;
 5469        let mut item_to_activate = None;
 5470        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5471            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5472                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5473            {
 5474                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5475            }
 5476        } else if let Some(shared_screen) =
 5477            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5478        {
 5479            item_to_activate = Some((None, Box::new(shared_screen)));
 5480        }
 5481        item_to_activate
 5482    }
 5483
 5484    fn shared_screen_for_peer(
 5485        &self,
 5486        peer_id: PeerId,
 5487        pane: &Entity<Pane>,
 5488        window: &mut Window,
 5489        cx: &mut App,
 5490    ) -> Option<Entity<SharedScreen>> {
 5491        let call = self.active_call()?;
 5492        let room = call.read(cx).room()?.clone();
 5493        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5494        let track = participant.video_tracks.values().next()?.clone();
 5495        let user = participant.user.clone();
 5496
 5497        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5498            if item.read(cx).peer_id == peer_id {
 5499                return Some(item);
 5500            }
 5501        }
 5502
 5503        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5504    }
 5505
 5506    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5507        if window.is_window_active() {
 5508            self.update_active_view_for_followers(window, cx);
 5509
 5510            if let Some(database_id) = self.database_id {
 5511                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5512                    .detach();
 5513            }
 5514        } else {
 5515            for pane in &self.panes {
 5516                pane.update(cx, |pane, cx| {
 5517                    if let Some(item) = pane.active_item() {
 5518                        item.workspace_deactivated(window, cx);
 5519                    }
 5520                    for item in pane.items() {
 5521                        if matches!(
 5522                            item.workspace_settings(cx).autosave,
 5523                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5524                        ) {
 5525                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5526                                .detach_and_log_err(cx);
 5527                        }
 5528                    }
 5529                });
 5530            }
 5531        }
 5532    }
 5533
 5534    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5535        self.active_call.as_ref().map(|(call, _)| call)
 5536    }
 5537
 5538    fn on_active_call_event(
 5539        &mut self,
 5540        _: &Entity<ActiveCall>,
 5541        event: &call::room::Event,
 5542        window: &mut Window,
 5543        cx: &mut Context<Self>,
 5544    ) {
 5545        match event {
 5546            call::room::Event::ParticipantLocationChanged { participant_id }
 5547            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5548                self.leader_updated(participant_id, window, cx);
 5549            }
 5550            _ => {}
 5551        }
 5552    }
 5553
 5554    pub fn database_id(&self) -> Option<WorkspaceId> {
 5555        self.database_id
 5556    }
 5557
 5558    pub fn session_id(&self) -> Option<String> {
 5559        self.session_id.clone()
 5560    }
 5561
 5562    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5563        let project = self.project().read(cx);
 5564        project
 5565            .visible_worktrees(cx)
 5566            .map(|worktree| worktree.read(cx).abs_path())
 5567            .collect::<Vec<_>>()
 5568    }
 5569
 5570    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5571        match member {
 5572            Member::Axis(PaneAxis { members, .. }) => {
 5573                for child in members.iter() {
 5574                    self.remove_panes(child.clone(), window, cx)
 5575                }
 5576            }
 5577            Member::Pane(pane) => {
 5578                self.force_remove_pane(&pane, &None, window, cx);
 5579            }
 5580        }
 5581    }
 5582
 5583    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5584        self.session_id.take();
 5585        self.serialize_workspace_internal(window, cx)
 5586    }
 5587
 5588    fn force_remove_pane(
 5589        &mut self,
 5590        pane: &Entity<Pane>,
 5591        focus_on: &Option<Entity<Pane>>,
 5592        window: &mut Window,
 5593        cx: &mut Context<Workspace>,
 5594    ) {
 5595        self.panes.retain(|p| p != pane);
 5596        if let Some(focus_on) = focus_on {
 5597            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5598        } else if self.active_pane() == pane {
 5599            self.panes
 5600                .last()
 5601                .unwrap()
 5602                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5603        }
 5604        if self.last_active_center_pane == Some(pane.downgrade()) {
 5605            self.last_active_center_pane = None;
 5606        }
 5607        cx.notify();
 5608    }
 5609
 5610    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5611        if self._schedule_serialize_workspace.is_none() {
 5612            self._schedule_serialize_workspace =
 5613                Some(cx.spawn_in(window, async move |this, cx| {
 5614                    cx.background_executor()
 5615                        .timer(SERIALIZATION_THROTTLE_TIME)
 5616                        .await;
 5617                    this.update_in(cx, |this, window, cx| {
 5618                        this.serialize_workspace_internal(window, cx).detach();
 5619                        this._schedule_serialize_workspace.take();
 5620                    })
 5621                    .log_err();
 5622                }));
 5623        }
 5624    }
 5625
 5626    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5627        let Some(database_id) = self.database_id() else {
 5628            return Task::ready(());
 5629        };
 5630
 5631        fn serialize_pane_handle(
 5632            pane_handle: &Entity<Pane>,
 5633            window: &mut Window,
 5634            cx: &mut App,
 5635        ) -> SerializedPane {
 5636            let (items, active, pinned_count) = {
 5637                let pane = pane_handle.read(cx);
 5638                let active_item_id = pane.active_item().map(|item| item.item_id());
 5639                (
 5640                    pane.items()
 5641                        .filter_map(|handle| {
 5642                            let handle = handle.to_serializable_item_handle(cx)?;
 5643
 5644                            Some(SerializedItem {
 5645                                kind: Arc::from(handle.serialized_item_kind()),
 5646                                item_id: handle.item_id().as_u64(),
 5647                                active: Some(handle.item_id()) == active_item_id,
 5648                                preview: pane.is_active_preview_item(handle.item_id()),
 5649                            })
 5650                        })
 5651                        .collect::<Vec<_>>(),
 5652                    pane.has_focus(window, cx),
 5653                    pane.pinned_count(),
 5654                )
 5655            };
 5656
 5657            SerializedPane::new(items, active, pinned_count)
 5658        }
 5659
 5660        fn build_serialized_pane_group(
 5661            pane_group: &Member,
 5662            window: &mut Window,
 5663            cx: &mut App,
 5664        ) -> SerializedPaneGroup {
 5665            match pane_group {
 5666                Member::Axis(PaneAxis {
 5667                    axis,
 5668                    members,
 5669                    flexes,
 5670                    bounding_boxes: _,
 5671                }) => SerializedPaneGroup::Group {
 5672                    axis: SerializedAxis(*axis),
 5673                    children: members
 5674                        .iter()
 5675                        .map(|member| build_serialized_pane_group(member, window, cx))
 5676                        .collect::<Vec<_>>(),
 5677                    flexes: Some(flexes.lock().clone()),
 5678                },
 5679                Member::Pane(pane_handle) => {
 5680                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5681                }
 5682            }
 5683        }
 5684
 5685        fn build_serialized_docks(
 5686            this: &Workspace,
 5687            window: &mut Window,
 5688            cx: &mut App,
 5689        ) -> DockStructure {
 5690            let left_dock = this.left_dock.read(cx);
 5691            let left_visible = left_dock.is_open();
 5692            let left_active_panel = left_dock
 5693                .active_panel()
 5694                .map(|panel| panel.persistent_name().to_string());
 5695            let left_dock_zoom = left_dock
 5696                .active_panel()
 5697                .map(|panel| panel.is_zoomed(window, cx))
 5698                .unwrap_or(false);
 5699
 5700            let right_dock = this.right_dock.read(cx);
 5701            let right_visible = right_dock.is_open();
 5702            let right_active_panel = right_dock
 5703                .active_panel()
 5704                .map(|panel| panel.persistent_name().to_string());
 5705            let right_dock_zoom = right_dock
 5706                .active_panel()
 5707                .map(|panel| panel.is_zoomed(window, cx))
 5708                .unwrap_or(false);
 5709
 5710            let bottom_dock = this.bottom_dock.read(cx);
 5711            let bottom_visible = bottom_dock.is_open();
 5712            let bottom_active_panel = bottom_dock
 5713                .active_panel()
 5714                .map(|panel| panel.persistent_name().to_string());
 5715            let bottom_dock_zoom = bottom_dock
 5716                .active_panel()
 5717                .map(|panel| panel.is_zoomed(window, cx))
 5718                .unwrap_or(false);
 5719
 5720            DockStructure {
 5721                left: DockData {
 5722                    visible: left_visible,
 5723                    active_panel: left_active_panel,
 5724                    zoom: left_dock_zoom,
 5725                },
 5726                right: DockData {
 5727                    visible: right_visible,
 5728                    active_panel: right_active_panel,
 5729                    zoom: right_dock_zoom,
 5730                },
 5731                bottom: DockData {
 5732                    visible: bottom_visible,
 5733                    active_panel: bottom_active_panel,
 5734                    zoom: bottom_dock_zoom,
 5735                },
 5736            }
 5737        }
 5738
 5739        match self.serialize_workspace_location(cx) {
 5740            WorkspaceLocation::Location(location, paths) => {
 5741                let breakpoints = self.project.update(cx, |project, cx| {
 5742                    project
 5743                        .breakpoint_store()
 5744                        .read(cx)
 5745                        .all_source_breakpoints(cx)
 5746                });
 5747                let user_toolchains = self
 5748                    .project
 5749                    .read(cx)
 5750                    .user_toolchains(cx)
 5751                    .unwrap_or_default();
 5752
 5753                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5754                let docks = build_serialized_docks(self, window, cx);
 5755                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5756
 5757                let serialized_workspace = SerializedWorkspace {
 5758                    id: database_id,
 5759                    location,
 5760                    paths,
 5761                    center_group,
 5762                    window_bounds,
 5763                    display: Default::default(),
 5764                    docks,
 5765                    centered_layout: self.centered_layout,
 5766                    session_id: self.session_id.clone(),
 5767                    breakpoints,
 5768                    window_id: Some(window.window_handle().window_id().as_u64()),
 5769                    user_toolchains,
 5770                };
 5771
 5772                window.spawn(cx, async move |_| {
 5773                    persistence::DB.save_workspace(serialized_workspace).await;
 5774                })
 5775            }
 5776            WorkspaceLocation::DetachFromSession => {
 5777                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5778                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5779                window.spawn(cx, async move |_| {
 5780                    persistence::DB
 5781                        .set_window_open_status(
 5782                            database_id,
 5783                            window_bounds,
 5784                            display.unwrap_or_default(),
 5785                        )
 5786                        .await
 5787                        .log_err();
 5788                    persistence::DB
 5789                        .set_session_id(database_id, None)
 5790                        .await
 5791                        .log_err();
 5792                })
 5793            }
 5794            WorkspaceLocation::None => Task::ready(()),
 5795        }
 5796    }
 5797
 5798    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5799        let paths = PathList::new(&self.root_paths(cx));
 5800        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5801            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5802        } else if self.project.read(cx).is_local() {
 5803            if !paths.is_empty() {
 5804                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5805            } else {
 5806                WorkspaceLocation::DetachFromSession
 5807            }
 5808        } else {
 5809            WorkspaceLocation::None
 5810        }
 5811    }
 5812
 5813    fn update_history(&self, cx: &mut App) {
 5814        let Some(id) = self.database_id() else {
 5815            return;
 5816        };
 5817        if !self.project.read(cx).is_local() {
 5818            return;
 5819        }
 5820        if let Some(manager) = HistoryManager::global(cx) {
 5821            let paths = PathList::new(&self.root_paths(cx));
 5822            manager.update(cx, |this, cx| {
 5823                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5824            });
 5825        }
 5826    }
 5827
 5828    async fn serialize_items(
 5829        this: &WeakEntity<Self>,
 5830        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5831        cx: &mut AsyncWindowContext,
 5832    ) -> Result<()> {
 5833        const CHUNK_SIZE: usize = 200;
 5834
 5835        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5836
 5837        while let Some(items_received) = serializable_items.next().await {
 5838            let unique_items =
 5839                items_received
 5840                    .into_iter()
 5841                    .fold(HashMap::default(), |mut acc, item| {
 5842                        acc.entry(item.item_id()).or_insert(item);
 5843                        acc
 5844                    });
 5845
 5846            // We use into_iter() here so that the references to the items are moved into
 5847            // the tasks and not kept alive while we're sleeping.
 5848            for (_, item) in unique_items.into_iter() {
 5849                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5850                    item.serialize(workspace, false, window, cx)
 5851                }) {
 5852                    cx.background_spawn(async move { task.await.log_err() })
 5853                        .detach();
 5854                }
 5855            }
 5856
 5857            cx.background_executor()
 5858                .timer(SERIALIZATION_THROTTLE_TIME)
 5859                .await;
 5860        }
 5861
 5862        Ok(())
 5863    }
 5864
 5865    pub(crate) fn enqueue_item_serialization(
 5866        &mut self,
 5867        item: Box<dyn SerializableItemHandle>,
 5868    ) -> Result<()> {
 5869        self.serializable_items_tx
 5870            .unbounded_send(item)
 5871            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5872    }
 5873
 5874    pub(crate) fn load_workspace(
 5875        serialized_workspace: SerializedWorkspace,
 5876        paths_to_open: Vec<Option<ProjectPath>>,
 5877        window: &mut Window,
 5878        cx: &mut Context<Workspace>,
 5879    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5880        cx.spawn_in(window, async move |workspace, cx| {
 5881            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5882
 5883            let mut center_group = None;
 5884            let mut center_items = None;
 5885
 5886            // Traverse the splits tree and add to things
 5887            if let Some((group, active_pane, items)) = serialized_workspace
 5888                .center_group
 5889                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5890                .await
 5891            {
 5892                center_items = Some(items);
 5893                center_group = Some((group, active_pane))
 5894            }
 5895
 5896            let mut items_by_project_path = HashMap::default();
 5897            let mut item_ids_by_kind = HashMap::default();
 5898            let mut all_deserialized_items = Vec::default();
 5899            cx.update(|_, cx| {
 5900                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5901                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5902                        item_ids_by_kind
 5903                            .entry(serializable_item_handle.serialized_item_kind())
 5904                            .or_insert(Vec::new())
 5905                            .push(item.item_id().as_u64() as ItemId);
 5906                    }
 5907
 5908                    if let Some(project_path) = item.project_path(cx) {
 5909                        items_by_project_path.insert(project_path, item.clone());
 5910                    }
 5911                    all_deserialized_items.push(item);
 5912                }
 5913            })?;
 5914
 5915            let opened_items = paths_to_open
 5916                .into_iter()
 5917                .map(|path_to_open| {
 5918                    path_to_open
 5919                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5920                })
 5921                .collect::<Vec<_>>();
 5922
 5923            // Remove old panes from workspace panes list
 5924            workspace.update_in(cx, |workspace, window, cx| {
 5925                if let Some((center_group, active_pane)) = center_group {
 5926                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5927
 5928                    // Swap workspace center group
 5929                    workspace.center = PaneGroup::with_root(center_group);
 5930                    workspace.center.set_is_center(true);
 5931                    workspace.center.mark_positions(cx);
 5932
 5933                    if let Some(active_pane) = active_pane {
 5934                        workspace.set_active_pane(&active_pane, window, cx);
 5935                        cx.focus_self(window);
 5936                    } else {
 5937                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5938                    }
 5939                }
 5940
 5941                let docks = serialized_workspace.docks;
 5942
 5943                for (dock, serialized_dock) in [
 5944                    (&mut workspace.right_dock, docks.right),
 5945                    (&mut workspace.left_dock, docks.left),
 5946                    (&mut workspace.bottom_dock, docks.bottom),
 5947                ]
 5948                .iter_mut()
 5949                {
 5950                    dock.update(cx, |dock, cx| {
 5951                        dock.serialized_dock = Some(serialized_dock.clone());
 5952                        dock.restore_state(window, cx);
 5953                    });
 5954                }
 5955
 5956                cx.notify();
 5957            })?;
 5958
 5959            let _ = project
 5960                .update(cx, |project, cx| {
 5961                    project
 5962                        .breakpoint_store()
 5963                        .update(cx, |breakpoint_store, cx| {
 5964                            breakpoint_store
 5965                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5966                        })
 5967                })
 5968                .await;
 5969
 5970            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5971            // after loading the items, we might have different items and in order to avoid
 5972            // the database filling up, we delete items that haven't been loaded now.
 5973            //
 5974            // The items that have been loaded, have been saved after they've been added to the workspace.
 5975            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5976                item_ids_by_kind
 5977                    .into_iter()
 5978                    .map(|(item_kind, loaded_items)| {
 5979                        SerializableItemRegistry::cleanup(
 5980                            item_kind,
 5981                            serialized_workspace.id,
 5982                            loaded_items,
 5983                            window,
 5984                            cx,
 5985                        )
 5986                        .log_err()
 5987                    })
 5988                    .collect::<Vec<_>>()
 5989            })?;
 5990
 5991            futures::future::join_all(clean_up_tasks).await;
 5992
 5993            workspace
 5994                .update_in(cx, |workspace, window, cx| {
 5995                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5996                    workspace.serialize_workspace_internal(window, cx).detach();
 5997
 5998                    // Ensure that we mark the window as edited if we did load dirty items
 5999                    workspace.update_window_edited(window, cx);
 6000                })
 6001                .ok();
 6002
 6003            Ok(opened_items)
 6004        })
 6005    }
 6006
 6007    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6008        self.add_workspace_actions_listeners(div, window, cx)
 6009            .on_action(cx.listener(
 6010                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6011                    for action in &action_sequence.0 {
 6012                        window.dispatch_action(action.boxed_clone(), cx);
 6013                    }
 6014                },
 6015            ))
 6016            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6017            .on_action(cx.listener(Self::close_all_items_and_panes))
 6018            .on_action(cx.listener(Self::save_all))
 6019            .on_action(cx.listener(Self::send_keystrokes))
 6020            .on_action(cx.listener(Self::add_folder_to_project))
 6021            .on_action(cx.listener(Self::follow_next_collaborator))
 6022            .on_action(cx.listener(Self::close_window))
 6023            .on_action(cx.listener(Self::activate_pane_at_index))
 6024            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6025            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6026            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6027            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6028                let pane = workspace.active_pane().clone();
 6029                workspace.unfollow_in_pane(&pane, window, cx);
 6030            }))
 6031            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6032                workspace
 6033                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6034                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6035            }))
 6036            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6037                workspace
 6038                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6039                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6040            }))
 6041            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6042                workspace
 6043                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6044                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6045            }))
 6046            .on_action(
 6047                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6048                    workspace.activate_previous_pane(window, cx)
 6049                }),
 6050            )
 6051            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6052                workspace.activate_next_pane(window, cx)
 6053            }))
 6054            .on_action(
 6055                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6056                    workspace.activate_next_window(cx)
 6057                }),
 6058            )
 6059            .on_action(
 6060                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6061                    workspace.activate_previous_window(cx)
 6062                }),
 6063            )
 6064            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6065                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6066            }))
 6067            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6068                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6069            }))
 6070            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6071                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6072            }))
 6073            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6074                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6075            }))
 6076            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6077                workspace.activate_next_pane(window, cx)
 6078            }))
 6079            .on_action(cx.listener(
 6080                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6081                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6082                },
 6083            ))
 6084            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6085                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6086            }))
 6087            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6088                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6089            }))
 6090            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6091                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6092            }))
 6093            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6094                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6095            }))
 6096            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6097                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6098                    SplitDirection::Down,
 6099                    SplitDirection::Up,
 6100                    SplitDirection::Right,
 6101                    SplitDirection::Left,
 6102                ];
 6103                for dir in DIRECTION_PRIORITY {
 6104                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6105                        workspace.swap_pane_in_direction(dir, cx);
 6106                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6107                        break;
 6108                    }
 6109                }
 6110            }))
 6111            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6112                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6113            }))
 6114            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6115                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6116            }))
 6117            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6118                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6119            }))
 6120            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6121                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6122            }))
 6123            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6124                this.toggle_dock(DockPosition::Left, window, cx);
 6125            }))
 6126            .on_action(cx.listener(
 6127                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6128                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6129                },
 6130            ))
 6131            .on_action(cx.listener(
 6132                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6133                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6134                },
 6135            ))
 6136            .on_action(cx.listener(
 6137                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6138                    if !workspace.close_active_dock(window, cx) {
 6139                        cx.propagate();
 6140                    }
 6141                },
 6142            ))
 6143            .on_action(
 6144                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6145                    workspace.close_all_docks(window, cx);
 6146                }),
 6147            )
 6148            .on_action(cx.listener(Self::toggle_all_docks))
 6149            .on_action(cx.listener(
 6150                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6151                    workspace.clear_all_notifications(cx);
 6152                },
 6153            ))
 6154            .on_action(cx.listener(
 6155                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6156                    workspace.clear_navigation_history(window, cx);
 6157                },
 6158            ))
 6159            .on_action(cx.listener(
 6160                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6161                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6162                        workspace.suppress_notification(&notification_id, cx);
 6163                    }
 6164                },
 6165            ))
 6166            .on_action(cx.listener(
 6167                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6168                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6169                },
 6170            ))
 6171            .on_action(
 6172                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6173                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6174                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6175                            trusted_worktrees.clear_trusted_paths()
 6176                        });
 6177                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6178                        cx.spawn(async move |_, cx| {
 6179                            if clear_task.await.log_err().is_some() {
 6180                                cx.update(|cx| reload(cx));
 6181                            }
 6182                        })
 6183                        .detach();
 6184                    }
 6185                }),
 6186            )
 6187            .on_action(cx.listener(
 6188                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6189                    workspace.reopen_closed_item(window, cx).detach();
 6190                },
 6191            ))
 6192            .on_action(cx.listener(
 6193                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6194                    for dock in workspace.all_docks() {
 6195                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6196                            let Some(panel) = dock.read(cx).active_panel() else {
 6197                                return;
 6198                            };
 6199
 6200                            // Set to `None`, then the size will fall back to the default.
 6201                            panel.clone().set_size(None, window, cx);
 6202
 6203                            return;
 6204                        }
 6205                    }
 6206                },
 6207            ))
 6208            .on_action(cx.listener(
 6209                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6210                    for dock in workspace.all_docks() {
 6211                        if let Some(panel) = dock.read(cx).visible_panel() {
 6212                            // Set to `None`, then the size will fall back to the default.
 6213                            panel.clone().set_size(None, window, cx);
 6214                        }
 6215                    }
 6216                },
 6217            ))
 6218            .on_action(cx.listener(
 6219                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6220                    adjust_active_dock_size_by_px(
 6221                        px_with_ui_font_fallback(act.px, cx),
 6222                        workspace,
 6223                        window,
 6224                        cx,
 6225                    );
 6226                },
 6227            ))
 6228            .on_action(cx.listener(
 6229                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6230                    adjust_active_dock_size_by_px(
 6231                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6232                        workspace,
 6233                        window,
 6234                        cx,
 6235                    );
 6236                },
 6237            ))
 6238            .on_action(cx.listener(
 6239                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6240                    adjust_open_docks_size_by_px(
 6241                        px_with_ui_font_fallback(act.px, cx),
 6242                        workspace,
 6243                        window,
 6244                        cx,
 6245                    );
 6246                },
 6247            ))
 6248            .on_action(cx.listener(
 6249                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6250                    adjust_open_docks_size_by_px(
 6251                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6252                        workspace,
 6253                        window,
 6254                        cx,
 6255                    );
 6256                },
 6257            ))
 6258            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6259            .on_action(cx.listener(
 6260                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6261                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6262                        let dock = active_dock.read(cx);
 6263                        if let Some(active_panel) = dock.active_panel() {
 6264                            if active_panel.pane(cx).is_none() {
 6265                                let mut recent_pane: Option<Entity<Pane>> = None;
 6266                                let mut recent_timestamp = 0;
 6267                                for pane_handle in workspace.panes() {
 6268                                    let pane = pane_handle.read(cx);
 6269                                    for entry in pane.activation_history() {
 6270                                        if entry.timestamp > recent_timestamp {
 6271                                            recent_timestamp = entry.timestamp;
 6272                                            recent_pane = Some(pane_handle.clone());
 6273                                        }
 6274                                    }
 6275                                }
 6276
 6277                                if let Some(pane) = recent_pane {
 6278                                    pane.update(cx, |pane, cx| {
 6279                                        let current_index = pane.active_item_index();
 6280                                        let items_len = pane.items_len();
 6281                                        if items_len > 0 {
 6282                                            let next_index = if current_index + 1 < items_len {
 6283                                                current_index + 1
 6284                                            } else {
 6285                                                0
 6286                                            };
 6287                                            pane.activate_item(
 6288                                                next_index, false, false, window, cx,
 6289                                            );
 6290                                        }
 6291                                    });
 6292                                    return;
 6293                                }
 6294                            }
 6295                        }
 6296                    }
 6297                    cx.propagate();
 6298                },
 6299            ))
 6300            .on_action(cx.listener(
 6301                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6302                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6303                        let dock = active_dock.read(cx);
 6304                        if let Some(active_panel) = dock.active_panel() {
 6305                            if active_panel.pane(cx).is_none() {
 6306                                let mut recent_pane: Option<Entity<Pane>> = None;
 6307                                let mut recent_timestamp = 0;
 6308                                for pane_handle in workspace.panes() {
 6309                                    let pane = pane_handle.read(cx);
 6310                                    for entry in pane.activation_history() {
 6311                                        if entry.timestamp > recent_timestamp {
 6312                                            recent_timestamp = entry.timestamp;
 6313                                            recent_pane = Some(pane_handle.clone());
 6314                                        }
 6315                                    }
 6316                                }
 6317
 6318                                if let Some(pane) = recent_pane {
 6319                                    pane.update(cx, |pane, cx| {
 6320                                        let current_index = pane.active_item_index();
 6321                                        let items_len = pane.items_len();
 6322                                        if items_len > 0 {
 6323                                            let prev_index = if current_index > 0 {
 6324                                                current_index - 1
 6325                                            } else {
 6326                                                items_len.saturating_sub(1)
 6327                                            };
 6328                                            pane.activate_item(
 6329                                                prev_index, false, false, window, cx,
 6330                                            );
 6331                                        }
 6332                                    });
 6333                                    return;
 6334                                }
 6335                            }
 6336                        }
 6337                    }
 6338                    cx.propagate();
 6339                },
 6340            ))
 6341            .on_action(
 6342                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6343                    let pane = workspace.active_pane().clone();
 6344                    if let Some(item) = pane.read(cx).active_item() {
 6345                        item.toggle_read_only(window, cx);
 6346                    }
 6347                }),
 6348            )
 6349            .on_action(cx.listener(Workspace::cancel))
 6350    }
 6351
 6352    #[cfg(any(test, feature = "test-support"))]
 6353    pub fn set_random_database_id(&mut self) {
 6354        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6355    }
 6356
 6357    #[cfg(any(test, feature = "test-support"))]
 6358    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6359        use node_runtime::NodeRuntime;
 6360        use session::Session;
 6361
 6362        let client = project.read(cx).client();
 6363        let user_store = project.read(cx).user_store();
 6364        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6365        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6366        window.activate_window();
 6367        let app_state = Arc::new(AppState {
 6368            languages: project.read(cx).languages().clone(),
 6369            workspace_store,
 6370            client,
 6371            user_store,
 6372            fs: project.read(cx).fs().clone(),
 6373            build_window_options: |_, _| Default::default(),
 6374            node_runtime: NodeRuntime::unavailable(),
 6375            session,
 6376        });
 6377        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6378        workspace
 6379            .active_pane
 6380            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6381        workspace
 6382    }
 6383
 6384    pub fn register_action<A: Action>(
 6385        &mut self,
 6386        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6387    ) -> &mut Self {
 6388        let callback = Arc::new(callback);
 6389
 6390        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6391            let callback = callback.clone();
 6392            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6393                (callback)(workspace, event, window, cx)
 6394            }))
 6395        }));
 6396        self
 6397    }
 6398    pub fn register_action_renderer(
 6399        &mut self,
 6400        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6401    ) -> &mut Self {
 6402        self.workspace_actions.push(Box::new(callback));
 6403        self
 6404    }
 6405
 6406    fn add_workspace_actions_listeners(
 6407        &self,
 6408        mut div: Div,
 6409        window: &mut Window,
 6410        cx: &mut Context<Self>,
 6411    ) -> Div {
 6412        for action in self.workspace_actions.iter() {
 6413            div = (action)(div, self, window, cx)
 6414        }
 6415        div
 6416    }
 6417
 6418    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6419        self.modal_layer.read(cx).has_active_modal()
 6420    }
 6421
 6422    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6423        self.modal_layer.read(cx).active_modal()
 6424    }
 6425
 6426    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6427    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6428    /// If no modal is active, the new modal will be shown.
 6429    ///
 6430    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6431    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6432    /// will not be shown.
 6433    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6434    where
 6435        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6436    {
 6437        self.modal_layer.update(cx, |modal_layer, cx| {
 6438            modal_layer.toggle_modal(window, cx, build)
 6439        })
 6440    }
 6441
 6442    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6443        self.modal_layer
 6444            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6445    }
 6446
 6447    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6448        self.toast_layer
 6449            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6450    }
 6451
 6452    pub fn toggle_centered_layout(
 6453        &mut self,
 6454        _: &ToggleCenteredLayout,
 6455        _: &mut Window,
 6456        cx: &mut Context<Self>,
 6457    ) {
 6458        self.centered_layout = !self.centered_layout;
 6459        if let Some(database_id) = self.database_id() {
 6460            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6461                .detach_and_log_err(cx);
 6462        }
 6463        cx.notify();
 6464    }
 6465
 6466    fn adjust_padding(padding: Option<f32>) -> f32 {
 6467        padding
 6468            .unwrap_or(CenteredPaddingSettings::default().0)
 6469            .clamp(
 6470                CenteredPaddingSettings::MIN_PADDING,
 6471                CenteredPaddingSettings::MAX_PADDING,
 6472            )
 6473    }
 6474
 6475    fn render_dock(
 6476        &self,
 6477        position: DockPosition,
 6478        dock: &Entity<Dock>,
 6479        window: &mut Window,
 6480        cx: &mut App,
 6481    ) -> Option<Div> {
 6482        if self.zoomed_position == Some(position) {
 6483            return None;
 6484        }
 6485
 6486        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6487            let pane = panel.pane(cx)?;
 6488            let follower_states = &self.follower_states;
 6489            leader_border_for_pane(follower_states, &pane, window, cx)
 6490        });
 6491
 6492        Some(
 6493            div()
 6494                .flex()
 6495                .flex_none()
 6496                .overflow_hidden()
 6497                .child(dock.clone())
 6498                .children(leader_border),
 6499        )
 6500    }
 6501
 6502    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6503        window.root().flatten()
 6504    }
 6505
 6506    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6507        self.zoomed.as_ref()
 6508    }
 6509
 6510    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6511        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6512            return;
 6513        };
 6514        let windows = cx.windows();
 6515        let next_window =
 6516            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6517                || {
 6518                    windows
 6519                        .iter()
 6520                        .cycle()
 6521                        .skip_while(|window| window.window_id() != current_window_id)
 6522                        .nth(1)
 6523                },
 6524            );
 6525
 6526        if let Some(window) = next_window {
 6527            window
 6528                .update(cx, |_, window, _| window.activate_window())
 6529                .ok();
 6530        }
 6531    }
 6532
 6533    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6534        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6535            return;
 6536        };
 6537        let windows = cx.windows();
 6538        let prev_window =
 6539            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6540                || {
 6541                    windows
 6542                        .iter()
 6543                        .rev()
 6544                        .cycle()
 6545                        .skip_while(|window| window.window_id() != current_window_id)
 6546                        .nth(1)
 6547                },
 6548            );
 6549
 6550        if let Some(window) = prev_window {
 6551            window
 6552                .update(cx, |_, window, _| window.activate_window())
 6553                .ok();
 6554        }
 6555    }
 6556
 6557    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6558        if cx.stop_active_drag(window) {
 6559        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6560            dismiss_app_notification(&notification_id, cx);
 6561        } else {
 6562            cx.propagate();
 6563        }
 6564    }
 6565
 6566    fn adjust_dock_size_by_px(
 6567        &mut self,
 6568        panel_size: Pixels,
 6569        dock_pos: DockPosition,
 6570        px: Pixels,
 6571        window: &mut Window,
 6572        cx: &mut Context<Self>,
 6573    ) {
 6574        match dock_pos {
 6575            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6576            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6577            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6578        }
 6579    }
 6580
 6581    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6582        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6583
 6584        self.left_dock.update(cx, |left_dock, cx| {
 6585            if WorkspaceSettings::get_global(cx)
 6586                .resize_all_panels_in_dock
 6587                .contains(&DockPosition::Left)
 6588            {
 6589                left_dock.resize_all_panels(Some(size), window, cx);
 6590            } else {
 6591                left_dock.resize_active_panel(Some(size), window, cx);
 6592            }
 6593        });
 6594        self.clamp_utility_pane_widths(window, cx);
 6595    }
 6596
 6597    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6598        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6599        self.left_dock.read_with(cx, |left_dock, cx| {
 6600            let left_dock_size = left_dock
 6601                .active_panel_size(window, cx)
 6602                .unwrap_or(Pixels::ZERO);
 6603            if left_dock_size + size > self.bounds.right() {
 6604                size = self.bounds.right() - left_dock_size
 6605            }
 6606        });
 6607        self.right_dock.update(cx, |right_dock, cx| {
 6608            if WorkspaceSettings::get_global(cx)
 6609                .resize_all_panels_in_dock
 6610                .contains(&DockPosition::Right)
 6611            {
 6612                right_dock.resize_all_panels(Some(size), window, cx);
 6613            } else {
 6614                right_dock.resize_active_panel(Some(size), window, cx);
 6615            }
 6616        });
 6617        self.clamp_utility_pane_widths(window, cx);
 6618    }
 6619
 6620    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6621        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6622        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6623            if WorkspaceSettings::get_global(cx)
 6624                .resize_all_panels_in_dock
 6625                .contains(&DockPosition::Bottom)
 6626            {
 6627                bottom_dock.resize_all_panels(Some(size), window, cx);
 6628            } else {
 6629                bottom_dock.resize_active_panel(Some(size), window, cx);
 6630            }
 6631        });
 6632        self.clamp_utility_pane_widths(window, cx);
 6633    }
 6634
 6635    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6636        let left_dock_width = self
 6637            .left_dock
 6638            .read(cx)
 6639            .active_panel_size(window, cx)
 6640            .unwrap_or(px(0.0));
 6641        let right_dock_width = self
 6642            .right_dock
 6643            .read(cx)
 6644            .active_panel_size(window, cx)
 6645            .unwrap_or(px(0.0));
 6646        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6647        center_pane_width - px(10.0)
 6648    }
 6649
 6650    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6651        let max_width = self.max_utility_pane_width(window, cx);
 6652
 6653        // Clamp left slot utility pane if it exists
 6654        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6655            let current_width = handle.width(cx);
 6656            if current_width > max_width {
 6657                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6658            }
 6659        }
 6660
 6661        // Clamp right slot utility pane if it exists
 6662        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6663            let current_width = handle.width(cx);
 6664            if current_width > max_width {
 6665                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6666            }
 6667        }
 6668    }
 6669
 6670    fn toggle_edit_predictions_all_files(
 6671        &mut self,
 6672        _: &ToggleEditPrediction,
 6673        _window: &mut Window,
 6674        cx: &mut Context<Self>,
 6675    ) {
 6676        let fs = self.project().read(cx).fs().clone();
 6677        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6678        update_settings_file(fs, cx, move |file, _| {
 6679            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6680        });
 6681    }
 6682
 6683    pub fn show_worktree_trust_security_modal(
 6684        &mut self,
 6685        toggle: bool,
 6686        window: &mut Window,
 6687        cx: &mut Context<Self>,
 6688    ) {
 6689        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6690            if toggle {
 6691                security_modal.update(cx, |security_modal, cx| {
 6692                    security_modal.dismiss(cx);
 6693                })
 6694            } else {
 6695                security_modal.update(cx, |security_modal, cx| {
 6696                    security_modal.refresh_restricted_paths(cx);
 6697                });
 6698            }
 6699        } else {
 6700            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6701                .map(|trusted_worktrees| {
 6702                    trusted_worktrees
 6703                        .read(cx)
 6704                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6705                })
 6706                .unwrap_or(false);
 6707            if has_restricted_worktrees {
 6708                let project = self.project().read(cx);
 6709                let remote_host = project
 6710                    .remote_connection_options(cx)
 6711                    .map(RemoteHostLocation::from);
 6712                let worktree_store = project.worktree_store().downgrade();
 6713                self.toggle_modal(window, cx, |_, cx| {
 6714                    SecurityModal::new(worktree_store, remote_host, cx)
 6715                });
 6716            }
 6717        }
 6718    }
 6719
 6720    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6721        self.update_window_title(window, cx);
 6722        self.serialize_workspace(window, cx);
 6723        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6724        self.update_history(cx);
 6725    }
 6726}
 6727
 6728fn leader_border_for_pane(
 6729    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6730    pane: &Entity<Pane>,
 6731    _: &Window,
 6732    cx: &App,
 6733) -> Option<Div> {
 6734    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6735        if state.pane() == pane {
 6736            Some((*leader_id, state))
 6737        } else {
 6738            None
 6739        }
 6740    })?;
 6741
 6742    let mut leader_color = match leader_id {
 6743        CollaboratorId::PeerId(leader_peer_id) => {
 6744            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6745            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6746
 6747            cx.theme()
 6748                .players()
 6749                .color_for_participant(leader.participant_index.0)
 6750                .cursor
 6751        }
 6752        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6753    };
 6754    leader_color.fade_out(0.3);
 6755    Some(
 6756        div()
 6757            .absolute()
 6758            .size_full()
 6759            .left_0()
 6760            .top_0()
 6761            .border_2()
 6762            .border_color(leader_color),
 6763    )
 6764}
 6765
 6766fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6767    ZED_WINDOW_POSITION
 6768        .zip(*ZED_WINDOW_SIZE)
 6769        .map(|(position, size)| Bounds {
 6770            origin: position,
 6771            size,
 6772        })
 6773}
 6774
 6775fn open_items(
 6776    serialized_workspace: Option<SerializedWorkspace>,
 6777    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6778    window: &mut Window,
 6779    cx: &mut Context<Workspace>,
 6780) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6781    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6782        Workspace::load_workspace(
 6783            serialized_workspace,
 6784            project_paths_to_open
 6785                .iter()
 6786                .map(|(_, project_path)| project_path)
 6787                .cloned()
 6788                .collect(),
 6789            window,
 6790            cx,
 6791        )
 6792    });
 6793
 6794    cx.spawn_in(window, async move |workspace, cx| {
 6795        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6796
 6797        if let Some(restored_items) = restored_items {
 6798            let restored_items = restored_items.await?;
 6799
 6800            let restored_project_paths = restored_items
 6801                .iter()
 6802                .filter_map(|item| {
 6803                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6804                        .ok()
 6805                        .flatten()
 6806                })
 6807                .collect::<HashSet<_>>();
 6808
 6809            for restored_item in restored_items {
 6810                opened_items.push(restored_item.map(Ok));
 6811            }
 6812
 6813            project_paths_to_open
 6814                .iter_mut()
 6815                .for_each(|(_, project_path)| {
 6816                    if let Some(project_path_to_open) = project_path
 6817                        && restored_project_paths.contains(project_path_to_open)
 6818                    {
 6819                        *project_path = None;
 6820                    }
 6821                });
 6822        } else {
 6823            for _ in 0..project_paths_to_open.len() {
 6824                opened_items.push(None);
 6825            }
 6826        }
 6827        assert!(opened_items.len() == project_paths_to_open.len());
 6828
 6829        let tasks =
 6830            project_paths_to_open
 6831                .into_iter()
 6832                .enumerate()
 6833                .map(|(ix, (abs_path, project_path))| {
 6834                    let workspace = workspace.clone();
 6835                    cx.spawn(async move |cx| {
 6836                        let file_project_path = project_path?;
 6837                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6838                            workspace.project().update(cx, |project, cx| {
 6839                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6840                            })
 6841                        });
 6842
 6843                        // We only want to open file paths here. If one of the items
 6844                        // here is a directory, it was already opened further above
 6845                        // with a `find_or_create_worktree`.
 6846                        if let Ok(task) = abs_path_task
 6847                            && task.await.is_none_or(|p| p.is_file())
 6848                        {
 6849                            return Some((
 6850                                ix,
 6851                                workspace
 6852                                    .update_in(cx, |workspace, window, cx| {
 6853                                        workspace.open_path(
 6854                                            file_project_path,
 6855                                            None,
 6856                                            true,
 6857                                            window,
 6858                                            cx,
 6859                                        )
 6860                                    })
 6861                                    .log_err()?
 6862                                    .await,
 6863                            ));
 6864                        }
 6865                        None
 6866                    })
 6867                });
 6868
 6869        let tasks = tasks.collect::<Vec<_>>();
 6870
 6871        let tasks = futures::future::join_all(tasks);
 6872        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6873            opened_items[ix] = Some(path_open_result);
 6874        }
 6875
 6876        Ok(opened_items)
 6877    })
 6878}
 6879
 6880enum ActivateInDirectionTarget {
 6881    Pane(Entity<Pane>),
 6882    Dock(Entity<Dock>),
 6883}
 6884
 6885fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6886    workspace
 6887        .update(cx, |workspace, _, cx| {
 6888            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6889                struct DatabaseFailedNotification;
 6890
 6891                workspace.show_notification(
 6892                    NotificationId::unique::<DatabaseFailedNotification>(),
 6893                    cx,
 6894                    |cx| {
 6895                        cx.new(|cx| {
 6896                            MessageNotification::new("Failed to load the database file.", cx)
 6897                                .primary_message("File an Issue")
 6898                                .primary_icon(IconName::Plus)
 6899                                .primary_on_click(|window, cx| {
 6900                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6901                                })
 6902                        })
 6903                    },
 6904                );
 6905            }
 6906        })
 6907        .log_err();
 6908}
 6909
 6910fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6911    if val == 0 {
 6912        ThemeSettings::get_global(cx).ui_font_size(cx)
 6913    } else {
 6914        px(val as f32)
 6915    }
 6916}
 6917
 6918fn adjust_active_dock_size_by_px(
 6919    px: Pixels,
 6920    workspace: &mut Workspace,
 6921    window: &mut Window,
 6922    cx: &mut Context<Workspace>,
 6923) {
 6924    let Some(active_dock) = workspace
 6925        .all_docks()
 6926        .into_iter()
 6927        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6928    else {
 6929        return;
 6930    };
 6931    let dock = active_dock.read(cx);
 6932    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6933        return;
 6934    };
 6935    let dock_pos = dock.position();
 6936    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6937}
 6938
 6939fn adjust_open_docks_size_by_px(
 6940    px: Pixels,
 6941    workspace: &mut Workspace,
 6942    window: &mut Window,
 6943    cx: &mut Context<Workspace>,
 6944) {
 6945    let docks = workspace
 6946        .all_docks()
 6947        .into_iter()
 6948        .filter_map(|dock| {
 6949            if dock.read(cx).is_open() {
 6950                let dock = dock.read(cx);
 6951                let panel_size = dock.active_panel_size(window, cx)?;
 6952                let dock_pos = dock.position();
 6953                Some((panel_size, dock_pos, px))
 6954            } else {
 6955                None
 6956            }
 6957        })
 6958        .collect::<Vec<_>>();
 6959
 6960    docks
 6961        .into_iter()
 6962        .for_each(|(panel_size, dock_pos, offset)| {
 6963            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6964        });
 6965}
 6966
 6967impl Focusable for Workspace {
 6968    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6969        self.active_pane.focus_handle(cx)
 6970    }
 6971}
 6972
 6973#[derive(Clone)]
 6974struct DraggedDock(DockPosition);
 6975
 6976impl Render for DraggedDock {
 6977    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6978        gpui::Empty
 6979    }
 6980}
 6981
 6982impl Render for Workspace {
 6983    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6984        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6985        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6986            log::info!("Rendered first frame");
 6987        }
 6988        let mut context = KeyContext::new_with_defaults();
 6989        context.add("Workspace");
 6990        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6991        if let Some(status) = self
 6992            .debugger_provider
 6993            .as_ref()
 6994            .and_then(|provider| provider.active_thread_state(cx))
 6995        {
 6996            match status {
 6997                ThreadStatus::Running | ThreadStatus::Stepping => {
 6998                    context.add("debugger_running");
 6999                }
 7000                ThreadStatus::Stopped => context.add("debugger_stopped"),
 7001                ThreadStatus::Exited | ThreadStatus::Ended => {}
 7002            }
 7003        }
 7004
 7005        if self.left_dock.read(cx).is_open() {
 7006            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 7007                context.set("left_dock", active_panel.panel_key());
 7008            }
 7009        }
 7010
 7011        if self.right_dock.read(cx).is_open() {
 7012            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 7013                context.set("right_dock", active_panel.panel_key());
 7014            }
 7015        }
 7016
 7017        if self.bottom_dock.read(cx).is_open() {
 7018            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 7019                context.set("bottom_dock", active_panel.panel_key());
 7020            }
 7021        }
 7022
 7023        let centered_layout = self.centered_layout
 7024            && self.center.panes().len() == 1
 7025            && self.active_item(cx).is_some();
 7026        let render_padding = |size| {
 7027            (size > 0.0).then(|| {
 7028                div()
 7029                    .h_full()
 7030                    .w(relative(size))
 7031                    .bg(cx.theme().colors().editor_background)
 7032                    .border_color(cx.theme().colors().pane_group_border)
 7033            })
 7034        };
 7035        let paddings = if centered_layout {
 7036            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7037            (
 7038                render_padding(Self::adjust_padding(
 7039                    settings.left_padding.map(|padding| padding.0),
 7040                )),
 7041                render_padding(Self::adjust_padding(
 7042                    settings.right_padding.map(|padding| padding.0),
 7043                )),
 7044            )
 7045        } else {
 7046            (None, None)
 7047        };
 7048        let ui_font = theme::setup_ui_font(window, cx);
 7049
 7050        let theme = cx.theme().clone();
 7051        let colors = theme.colors();
 7052        let notification_entities = self
 7053            .notifications
 7054            .iter()
 7055            .map(|(_, notification)| notification.entity_id())
 7056            .collect::<Vec<_>>();
 7057        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7058
 7059        client_side_decorations(
 7060            self.actions(div(), window, cx)
 7061                .key_context(context)
 7062                .relative()
 7063                .size_full()
 7064                .flex()
 7065                .flex_col()
 7066                .font(ui_font)
 7067                .gap_0()
 7068                .justify_start()
 7069                .items_start()
 7070                .text_color(colors.text)
 7071                .overflow_hidden()
 7072                .children(self.titlebar_item.clone())
 7073                .on_modifiers_changed(move |_, _, cx| {
 7074                    for &id in &notification_entities {
 7075                        cx.notify(id);
 7076                    }
 7077                })
 7078                .child(
 7079                    div()
 7080                        .size_full()
 7081                        .relative()
 7082                        .flex_1()
 7083                        .flex()
 7084                        .flex_col()
 7085                        .child(
 7086                            div()
 7087                                .id("workspace")
 7088                                .bg(colors.background)
 7089                                .relative()
 7090                                .flex_1()
 7091                                .w_full()
 7092                                .flex()
 7093                                .flex_col()
 7094                                .overflow_hidden()
 7095                                .border_t_1()
 7096                                .border_b_1()
 7097                                .border_color(colors.border)
 7098                                .child({
 7099                                    let this = cx.entity();
 7100                                    canvas(
 7101                                        move |bounds, window, cx| {
 7102                                            this.update(cx, |this, cx| {
 7103                                                let bounds_changed = this.bounds != bounds;
 7104                                                this.bounds = bounds;
 7105
 7106                                                if bounds_changed {
 7107                                                    this.left_dock.update(cx, |dock, cx| {
 7108                                                        dock.clamp_panel_size(
 7109                                                            bounds.size.width,
 7110                                                            window,
 7111                                                            cx,
 7112                                                        )
 7113                                                    });
 7114
 7115                                                    this.right_dock.update(cx, |dock, cx| {
 7116                                                        dock.clamp_panel_size(
 7117                                                            bounds.size.width,
 7118                                                            window,
 7119                                                            cx,
 7120                                                        )
 7121                                                    });
 7122
 7123                                                    this.bottom_dock.update(cx, |dock, cx| {
 7124                                                        dock.clamp_panel_size(
 7125                                                            bounds.size.height,
 7126                                                            window,
 7127                                                            cx,
 7128                                                        )
 7129                                                    });
 7130                                                }
 7131                                            })
 7132                                        },
 7133                                        |_, _, _, _| {},
 7134                                    )
 7135                                    .absolute()
 7136                                    .size_full()
 7137                                })
 7138                                .when(self.zoomed.is_none(), |this| {
 7139                                    this.on_drag_move(cx.listener(
 7140                                        move |workspace,
 7141                                              e: &DragMoveEvent<DraggedDock>,
 7142                                              window,
 7143                                              cx| {
 7144                                            if workspace.previous_dock_drag_coordinates
 7145                                                != Some(e.event.position)
 7146                                            {
 7147                                                workspace.previous_dock_drag_coordinates =
 7148                                                    Some(e.event.position);
 7149                                                match e.drag(cx).0 {
 7150                                                    DockPosition::Left => {
 7151                                                        workspace.resize_left_dock(
 7152                                                            e.event.position.x
 7153                                                                - workspace.bounds.left(),
 7154                                                            window,
 7155                                                            cx,
 7156                                                        );
 7157                                                    }
 7158                                                    DockPosition::Right => {
 7159                                                        workspace.resize_right_dock(
 7160                                                            workspace.bounds.right()
 7161                                                                - e.event.position.x,
 7162                                                            window,
 7163                                                            cx,
 7164                                                        );
 7165                                                    }
 7166                                                    DockPosition::Bottom => {
 7167                                                        workspace.resize_bottom_dock(
 7168                                                            workspace.bounds.bottom()
 7169                                                                - e.event.position.y,
 7170                                                            window,
 7171                                                            cx,
 7172                                                        );
 7173                                                    }
 7174                                                };
 7175                                                workspace.serialize_workspace(window, cx);
 7176                                            }
 7177                                        },
 7178                                    ))
 7179                                    .on_drag_move(cx.listener(
 7180                                        move |workspace,
 7181                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7182                                              window,
 7183                                              cx| {
 7184                                            let slot = e.drag(cx).0;
 7185                                            match slot {
 7186                                                UtilityPaneSlot::Left => {
 7187                                                    let left_dock_width = workspace.left_dock.read(cx)
 7188                                                        .active_panel_size(window, cx)
 7189                                                        .unwrap_or(gpui::px(0.0));
 7190                                                    let new_width = e.event.position.x
 7191                                                        - workspace.bounds.left()
 7192                                                        - left_dock_width;
 7193                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7194                                                }
 7195                                                UtilityPaneSlot::Right => {
 7196                                                    let right_dock_width = workspace.right_dock.read(cx)
 7197                                                        .active_panel_size(window, cx)
 7198                                                        .unwrap_or(gpui::px(0.0));
 7199                                                    let new_width = workspace.bounds.right()
 7200                                                        - e.event.position.x
 7201                                                        - right_dock_width;
 7202                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7203                                                }
 7204                                            }
 7205                                        },
 7206                                    ))
 7207                                })
 7208                                .child({
 7209                                    match bottom_dock_layout {
 7210                                        BottomDockLayout::Full => div()
 7211                                            .flex()
 7212                                            .flex_col()
 7213                                            .h_full()
 7214                                            .child(
 7215                                                div()
 7216                                                    .flex()
 7217                                                    .flex_row()
 7218                                                    .flex_1()
 7219                                                    .overflow_hidden()
 7220                                                    .children(self.render_dock(
 7221                                                        DockPosition::Left,
 7222                                                        &self.left_dock,
 7223                                                        window,
 7224                                                        cx,
 7225                                                    ))
 7226                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7227                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7228                                                            this.when(pane.expanded(cx), |this| {
 7229                                                                this.child(
 7230                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7231                                                                )
 7232                                                            })
 7233                                                        })
 7234                                                    })
 7235                                                    .child(
 7236                                                        div()
 7237                                                            .flex()
 7238                                                            .flex_col()
 7239                                                            .flex_1()
 7240                                                            .overflow_hidden()
 7241                                                            .child(
 7242                                                                h_flex()
 7243                                                                    .flex_1()
 7244                                                                    .when_some(
 7245                                                                        paddings.0,
 7246                                                                        |this, p| {
 7247                                                                            this.child(
 7248                                                                                p.border_r_1(),
 7249                                                                            )
 7250                                                                        },
 7251                                                                    )
 7252                                                                    .child(self.center.render(
 7253                                                                        self.zoomed.as_ref(),
 7254                                                                        &PaneRenderContext {
 7255                                                                            follower_states:
 7256                                                                                &self.follower_states,
 7257                                                                            active_call: self.active_call(),
 7258                                                                            active_pane: &self.active_pane,
 7259                                                                            app_state: &self.app_state,
 7260                                                                            project: &self.project,
 7261                                                                            workspace: &self.weak_self,
 7262                                                                        },
 7263                                                                        window,
 7264                                                                        cx,
 7265                                                                    ))
 7266                                                                    .when_some(
 7267                                                                        paddings.1,
 7268                                                                        |this, p| {
 7269                                                                            this.child(
 7270                                                                                p.border_l_1(),
 7271                                                                            )
 7272                                                                        },
 7273                                                                    ),
 7274                                                            ),
 7275                                                    )
 7276                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7277                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7278                                                            this.when(pane.expanded(cx), |this| {
 7279                                                                this.child(
 7280                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7281                                                                )
 7282                                                            })
 7283                                                        })
 7284                                                    })
 7285                                                    .children(self.render_dock(
 7286                                                        DockPosition::Right,
 7287                                                        &self.right_dock,
 7288                                                        window,
 7289                                                        cx,
 7290                                                    )),
 7291                                            )
 7292                                            .child(div().w_full().children(self.render_dock(
 7293                                                DockPosition::Bottom,
 7294                                                &self.bottom_dock,
 7295                                                window,
 7296                                                cx
 7297                                            ))),
 7298
 7299                                        BottomDockLayout::LeftAligned => div()
 7300                                            .flex()
 7301                                            .flex_row()
 7302                                            .h_full()
 7303                                            .child(
 7304                                                div()
 7305                                                    .flex()
 7306                                                    .flex_col()
 7307                                                    .flex_1()
 7308                                                    .h_full()
 7309                                                    .child(
 7310                                                        div()
 7311                                                            .flex()
 7312                                                            .flex_row()
 7313                                                            .flex_1()
 7314                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7315                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7316                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7317                                                                    this.when(pane.expanded(cx), |this| {
 7318                                                                        this.child(
 7319                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7320                                                                        )
 7321                                                                    })
 7322                                                                })
 7323                                                            })
 7324                                                            .child(
 7325                                                                div()
 7326                                                                    .flex()
 7327                                                                    .flex_col()
 7328                                                                    .flex_1()
 7329                                                                    .overflow_hidden()
 7330                                                                    .child(
 7331                                                                        h_flex()
 7332                                                                            .flex_1()
 7333                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7334                                                                            .child(self.center.render(
 7335                                                                                self.zoomed.as_ref(),
 7336                                                                                &PaneRenderContext {
 7337                                                                                    follower_states:
 7338                                                                                        &self.follower_states,
 7339                                                                                    active_call: self.active_call(),
 7340                                                                                    active_pane: &self.active_pane,
 7341                                                                                    app_state: &self.app_state,
 7342                                                                                    project: &self.project,
 7343                                                                                    workspace: &self.weak_self,
 7344                                                                                },
 7345                                                                                window,
 7346                                                                                cx,
 7347                                                                            ))
 7348                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7349                                                                    )
 7350                                                            )
 7351                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7352                                                                this.when(pane.expanded(cx), |this| {
 7353                                                                    this.child(
 7354                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7355                                                                    )
 7356                                                                })
 7357                                                            })
 7358                                                    )
 7359                                                    .child(
 7360                                                        div()
 7361                                                            .w_full()
 7362                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7363                                                    ),
 7364                                            )
 7365                                            .children(self.render_dock(
 7366                                                DockPosition::Right,
 7367                                                &self.right_dock,
 7368                                                window,
 7369                                                cx,
 7370                                            )),
 7371
 7372                                        BottomDockLayout::RightAligned => div()
 7373                                            .flex()
 7374                                            .flex_row()
 7375                                            .h_full()
 7376                                            .children(self.render_dock(
 7377                                                DockPosition::Left,
 7378                                                &self.left_dock,
 7379                                                window,
 7380                                                cx,
 7381                                            ))
 7382                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7383                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7384                                                    this.when(pane.expanded(cx), |this| {
 7385                                                        this.child(
 7386                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7387                                                        )
 7388                                                    })
 7389                                                })
 7390                                            })
 7391                                            .child(
 7392                                                div()
 7393                                                    .flex()
 7394                                                    .flex_col()
 7395                                                    .flex_1()
 7396                                                    .h_full()
 7397                                                    .child(
 7398                                                        div()
 7399                                                            .flex()
 7400                                                            .flex_row()
 7401                                                            .flex_1()
 7402                                                            .child(
 7403                                                                div()
 7404                                                                    .flex()
 7405                                                                    .flex_col()
 7406                                                                    .flex_1()
 7407                                                                    .overflow_hidden()
 7408                                                                    .child(
 7409                                                                        h_flex()
 7410                                                                            .flex_1()
 7411                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7412                                                                            .child(self.center.render(
 7413                                                                                self.zoomed.as_ref(),
 7414                                                                                &PaneRenderContext {
 7415                                                                                    follower_states:
 7416                                                                                        &self.follower_states,
 7417                                                                                    active_call: self.active_call(),
 7418                                                                                    active_pane: &self.active_pane,
 7419                                                                                    app_state: &self.app_state,
 7420                                                                                    project: &self.project,
 7421                                                                                    workspace: &self.weak_self,
 7422                                                                                },
 7423                                                                                window,
 7424                                                                                cx,
 7425                                                                            ))
 7426                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7427                                                                    )
 7428                                                            )
 7429                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7430                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7431                                                                    this.when(pane.expanded(cx), |this| {
 7432                                                                        this.child(
 7433                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7434                                                                        )
 7435                                                                    })
 7436                                                                })
 7437                                                            })
 7438                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7439                                                    )
 7440                                                    .child(
 7441                                                        div()
 7442                                                            .w_full()
 7443                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7444                                                    ),
 7445                                            ),
 7446
 7447                                        BottomDockLayout::Contained => div()
 7448                                            .flex()
 7449                                            .flex_row()
 7450                                            .h_full()
 7451                                            .children(self.render_dock(
 7452                                                DockPosition::Left,
 7453                                                &self.left_dock,
 7454                                                window,
 7455                                                cx,
 7456                                            ))
 7457                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7458                                                this.when(pane.expanded(cx), |this| {
 7459                                                    this.child(
 7460                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7461                                                    )
 7462                                                })
 7463                                            })
 7464                                            .child(
 7465                                                div()
 7466                                                    .flex()
 7467                                                    .flex_col()
 7468                                                    .flex_1()
 7469                                                    .overflow_hidden()
 7470                                                    .child(
 7471                                                        h_flex()
 7472                                                            .flex_1()
 7473                                                            .when_some(paddings.0, |this, p| {
 7474                                                                this.child(p.border_r_1())
 7475                                                            })
 7476                                                            .child(self.center.render(
 7477                                                                self.zoomed.as_ref(),
 7478                                                                &PaneRenderContext {
 7479                                                                    follower_states:
 7480                                                                        &self.follower_states,
 7481                                                                    active_call: self.active_call(),
 7482                                                                    active_pane: &self.active_pane,
 7483                                                                    app_state: &self.app_state,
 7484                                                                    project: &self.project,
 7485                                                                    workspace: &self.weak_self,
 7486                                                                },
 7487                                                                window,
 7488                                                                cx,
 7489                                                            ))
 7490                                                            .when_some(paddings.1, |this, p| {
 7491                                                                this.child(p.border_l_1())
 7492                                                            }),
 7493                                                    )
 7494                                                    .children(self.render_dock(
 7495                                                        DockPosition::Bottom,
 7496                                                        &self.bottom_dock,
 7497                                                        window,
 7498                                                        cx,
 7499                                                    )),
 7500                                            )
 7501                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7502                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7503                                                    this.when(pane.expanded(cx), |this| {
 7504                                                        this.child(
 7505                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7506                                                        )
 7507                                                    })
 7508                                                })
 7509                                            })
 7510                                            .children(self.render_dock(
 7511                                                DockPosition::Right,
 7512                                                &self.right_dock,
 7513                                                window,
 7514                                                cx,
 7515                                            )),
 7516                                    }
 7517                                })
 7518                                .children(self.zoomed.as_ref().and_then(|view| {
 7519                                    let zoomed_view = view.upgrade()?;
 7520                                    let div = div()
 7521                                        .occlude()
 7522                                        .absolute()
 7523                                        .overflow_hidden()
 7524                                        .border_color(colors.border)
 7525                                        .bg(colors.background)
 7526                                        .child(zoomed_view)
 7527                                        .inset_0()
 7528                                        .shadow_lg();
 7529
 7530                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7531                                       return Some(div);
 7532                                    }
 7533
 7534                                    Some(match self.zoomed_position {
 7535                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7536                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7537                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7538                                        None => {
 7539                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7540                                        }
 7541                                    })
 7542                                }))
 7543                                .children(self.render_notifications(window, cx)),
 7544                        )
 7545                        .when(self.status_bar_visible(cx), |parent| {
 7546                            parent.child(self.status_bar.clone())
 7547                        })
 7548                        .child(self.modal_layer.clone())
 7549                        .child(self.toast_layer.clone()),
 7550                ),
 7551            window,
 7552            cx,
 7553        )
 7554    }
 7555}
 7556
 7557impl WorkspaceStore {
 7558    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7559        Self {
 7560            workspaces: Default::default(),
 7561            _subscriptions: vec![
 7562                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7563                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7564            ],
 7565            client,
 7566        }
 7567    }
 7568
 7569    pub fn update_followers(
 7570        &self,
 7571        project_id: Option<u64>,
 7572        update: proto::update_followers::Variant,
 7573        cx: &App,
 7574    ) -> Option<()> {
 7575        let active_call = ActiveCall::try_global(cx)?;
 7576        let room_id = active_call.read(cx).room()?.read(cx).id();
 7577        self.client
 7578            .send(proto::UpdateFollowers {
 7579                room_id,
 7580                project_id,
 7581                variant: Some(update),
 7582            })
 7583            .log_err()
 7584    }
 7585
 7586    pub async fn handle_follow(
 7587        this: Entity<Self>,
 7588        envelope: TypedEnvelope<proto::Follow>,
 7589        mut cx: AsyncApp,
 7590    ) -> Result<proto::FollowResponse> {
 7591        this.update(&mut cx, |this, cx| {
 7592            let follower = Follower {
 7593                project_id: envelope.payload.project_id,
 7594                peer_id: envelope.original_sender_id()?,
 7595            };
 7596
 7597            let mut response = proto::FollowResponse::default();
 7598            this.workspaces.retain(|workspace| {
 7599                workspace
 7600                    .update(cx, |workspace, window, cx| {
 7601                        let handler_response =
 7602                            workspace.handle_follow(follower.project_id, window, cx);
 7603                        if let Some(active_view) = handler_response.active_view
 7604                            && workspace.project.read(cx).remote_id() == follower.project_id
 7605                        {
 7606                            response.active_view = Some(active_view)
 7607                        }
 7608                    })
 7609                    .is_ok()
 7610            });
 7611
 7612            Ok(response)
 7613        })
 7614    }
 7615
 7616    async fn handle_update_followers(
 7617        this: Entity<Self>,
 7618        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7619        mut cx: AsyncApp,
 7620    ) -> Result<()> {
 7621        let leader_id = envelope.original_sender_id()?;
 7622        let update = envelope.payload;
 7623
 7624        this.update(&mut cx, |this, cx| {
 7625            this.workspaces.retain(|workspace| {
 7626                workspace
 7627                    .update(cx, |workspace, window, cx| {
 7628                        let project_id = workspace.project.read(cx).remote_id();
 7629                        if update.project_id != project_id && update.project_id.is_some() {
 7630                            return;
 7631                        }
 7632                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7633                    })
 7634                    .is_ok()
 7635            });
 7636            Ok(())
 7637        })
 7638    }
 7639
 7640    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7641        &self.workspaces
 7642    }
 7643}
 7644
 7645impl ViewId {
 7646    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7647        Ok(Self {
 7648            creator: message
 7649                .creator
 7650                .map(CollaboratorId::PeerId)
 7651                .context("creator is missing")?,
 7652            id: message.id,
 7653        })
 7654    }
 7655
 7656    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7657        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7658            Some(proto::ViewId {
 7659                creator: Some(peer_id),
 7660                id: self.id,
 7661            })
 7662        } else {
 7663            None
 7664        }
 7665    }
 7666}
 7667
 7668impl FollowerState {
 7669    fn pane(&self) -> &Entity<Pane> {
 7670        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7671    }
 7672}
 7673
 7674pub trait WorkspaceHandle {
 7675    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7676}
 7677
 7678impl WorkspaceHandle for Entity<Workspace> {
 7679    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7680        self.read(cx)
 7681            .worktrees(cx)
 7682            .flat_map(|worktree| {
 7683                let worktree_id = worktree.read(cx).id();
 7684                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7685                    worktree_id,
 7686                    path: f.path.clone(),
 7687                })
 7688            })
 7689            .collect::<Vec<_>>()
 7690    }
 7691}
 7692
 7693pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7694    DB.last_workspace().await.log_err().flatten()
 7695}
 7696
 7697pub fn last_session_workspace_locations(
 7698    last_session_id: &str,
 7699    last_session_window_stack: Option<Vec<WindowId>>,
 7700) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7701    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7702        .log_err()
 7703}
 7704
 7705actions!(
 7706    collab,
 7707    [
 7708        /// Opens the channel notes for the current call.
 7709        ///
 7710        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7711        /// channel in the collab panel.
 7712        ///
 7713        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7714        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7715        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7716        OpenChannelNotes,
 7717        /// Mutes your microphone.
 7718        Mute,
 7719        /// Deafens yourself (mute both microphone and speakers).
 7720        Deafen,
 7721        /// Leaves the current call.
 7722        LeaveCall,
 7723        /// Shares the current project with collaborators.
 7724        ShareProject,
 7725        /// Shares your screen with collaborators.
 7726        ScreenShare,
 7727        /// Copies the current room name and session id for debugging purposes.
 7728        CopyRoomId,
 7729    ]
 7730);
 7731actions!(
 7732    zed,
 7733    [
 7734        /// Opens the Zed log file.
 7735        OpenLog,
 7736        /// Reveals the Zed log file in the system file manager.
 7737        RevealLogInFileManager
 7738    ]
 7739);
 7740
 7741async fn join_channel_internal(
 7742    channel_id: ChannelId,
 7743    app_state: &Arc<AppState>,
 7744    requesting_window: Option<WindowHandle<Workspace>>,
 7745    active_call: &Entity<ActiveCall>,
 7746    cx: &mut AsyncApp,
 7747) -> Result<bool> {
 7748    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7749        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7750            return (false, None);
 7751        };
 7752
 7753        let already_in_channel = room.channel_id() == Some(channel_id);
 7754        let should_prompt = room.is_sharing_project()
 7755            && !room.remote_participants().is_empty()
 7756            && !already_in_channel;
 7757        let open_room = if already_in_channel {
 7758            active_call.room().cloned()
 7759        } else {
 7760            None
 7761        };
 7762        (should_prompt, open_room)
 7763    });
 7764
 7765    if let Some(room) = open_room {
 7766        let task = room.update(cx, |room, cx| {
 7767            if let Some((project, host)) = room.most_active_project(cx) {
 7768                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7769            }
 7770
 7771            None
 7772        });
 7773        if let Some(task) = task {
 7774            task.await?;
 7775        }
 7776        return anyhow::Ok(true);
 7777    }
 7778
 7779    if should_prompt {
 7780        if let Some(workspace) = requesting_window {
 7781            let answer = workspace
 7782                .update(cx, |_, window, cx| {
 7783                    window.prompt(
 7784                        PromptLevel::Warning,
 7785                        "Do you want to switch channels?",
 7786                        Some("Leaving this call will unshare your current project."),
 7787                        &["Yes, Join Channel", "Cancel"],
 7788                        cx,
 7789                    )
 7790                })?
 7791                .await;
 7792
 7793            if answer == Ok(1) {
 7794                return Ok(false);
 7795            }
 7796        } else {
 7797            return Ok(false); // unreachable!() hopefully
 7798        }
 7799    }
 7800
 7801    let client = cx.update(|cx| active_call.read(cx).client());
 7802
 7803    let mut client_status = client.status();
 7804
 7805    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7806    'outer: loop {
 7807        let Some(status) = client_status.recv().await else {
 7808            anyhow::bail!("error connecting");
 7809        };
 7810
 7811        match status {
 7812            Status::Connecting
 7813            | Status::Authenticating
 7814            | Status::Authenticated
 7815            | Status::Reconnecting
 7816            | Status::Reauthenticating
 7817            | Status::Reauthenticated => continue,
 7818            Status::Connected { .. } => break 'outer,
 7819            Status::SignedOut | Status::AuthenticationError => {
 7820                return Err(ErrorCode::SignedOut.into());
 7821            }
 7822            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7823            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7824                return Err(ErrorCode::Disconnected.into());
 7825            }
 7826        }
 7827    }
 7828
 7829    let room = active_call
 7830        .update(cx, |active_call, cx| {
 7831            active_call.join_channel(channel_id, cx)
 7832        })
 7833        .await?;
 7834
 7835    let Some(room) = room else {
 7836        return anyhow::Ok(true);
 7837    };
 7838
 7839    room.update(cx, |room, _| room.room_update_completed())
 7840        .await;
 7841
 7842    let task = room.update(cx, |room, cx| {
 7843        if let Some((project, host)) = room.most_active_project(cx) {
 7844            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7845        }
 7846
 7847        // If you are the first to join a channel, see if you should share your project.
 7848        if room.remote_participants().is_empty()
 7849            && !room.local_participant_is_guest()
 7850            && let Some(workspace) = requesting_window
 7851        {
 7852            let project = workspace.update(cx, |workspace, _, cx| {
 7853                let project = workspace.project.read(cx);
 7854
 7855                if !CallSettings::get_global(cx).share_on_join {
 7856                    return None;
 7857                }
 7858
 7859                if (project.is_local() || project.is_via_remote_server())
 7860                    && project.visible_worktrees(cx).any(|tree| {
 7861                        tree.read(cx)
 7862                            .root_entry()
 7863                            .is_some_and(|entry| entry.is_dir())
 7864                    })
 7865                {
 7866                    Some(workspace.project.clone())
 7867                } else {
 7868                    None
 7869                }
 7870            });
 7871            if let Ok(Some(project)) = project {
 7872                return Some(cx.spawn(async move |room, cx| {
 7873                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7874                        .await?;
 7875                    Ok(())
 7876                }));
 7877            }
 7878        }
 7879
 7880        None
 7881    });
 7882    if let Some(task) = task {
 7883        task.await?;
 7884        return anyhow::Ok(true);
 7885    }
 7886    anyhow::Ok(false)
 7887}
 7888
 7889pub fn join_channel(
 7890    channel_id: ChannelId,
 7891    app_state: Arc<AppState>,
 7892    requesting_window: Option<WindowHandle<Workspace>>,
 7893    cx: &mut App,
 7894) -> Task<Result<()>> {
 7895    let active_call = ActiveCall::global(cx);
 7896    cx.spawn(async move |cx| {
 7897        let result =
 7898            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7899                .await;
 7900
 7901        // join channel succeeded, and opened a window
 7902        if matches!(result, Ok(true)) {
 7903            return anyhow::Ok(());
 7904        }
 7905
 7906        // find an existing workspace to focus and show call controls
 7907        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7908        if active_window.is_none() {
 7909            // no open workspaces, make one to show the error in (blergh)
 7910            let (window_handle, _) = cx
 7911                .update(|cx| {
 7912                    Workspace::new_local(
 7913                        vec![],
 7914                        app_state.clone(),
 7915                        requesting_window,
 7916                        None,
 7917                        None,
 7918                        cx,
 7919                    )
 7920                })
 7921                .await?;
 7922
 7923            if result.is_ok() {
 7924                cx.update(|cx| {
 7925                    cx.dispatch_action(&OpenChannelNotes);
 7926                });
 7927            }
 7928
 7929            active_window = Some(window_handle);
 7930        }
 7931
 7932        if let Err(err) = result {
 7933            log::error!("failed to join channel: {}", err);
 7934            if let Some(active_window) = active_window {
 7935                active_window
 7936                    .update(cx, |_, window, cx| {
 7937                        let detail: SharedString = match err.error_code() {
 7938                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7939                            ErrorCode::UpgradeRequired => concat!(
 7940                                "Your are running an unsupported version of Zed. ",
 7941                                "Please update to continue."
 7942                            )
 7943                            .into(),
 7944                            ErrorCode::NoSuchChannel => concat!(
 7945                                "No matching channel was found. ",
 7946                                "Please check the link and try again."
 7947                            )
 7948                            .into(),
 7949                            ErrorCode::Forbidden => concat!(
 7950                                "This channel is private, and you do not have access. ",
 7951                                "Please ask someone to add you and try again."
 7952                            )
 7953                            .into(),
 7954                            ErrorCode::Disconnected => {
 7955                                "Please check your internet connection and try again.".into()
 7956                            }
 7957                            _ => format!("{}\n\nPlease try again.", err).into(),
 7958                        };
 7959                        window.prompt(
 7960                            PromptLevel::Critical,
 7961                            "Failed to join channel",
 7962                            Some(&detail),
 7963                            &["Ok"],
 7964                            cx,
 7965                        )
 7966                    })?
 7967                    .await
 7968                    .ok();
 7969            }
 7970        }
 7971
 7972        // return ok, we showed the error to the user.
 7973        anyhow::Ok(())
 7974    })
 7975}
 7976
 7977pub async fn get_any_active_workspace(
 7978    app_state: Arc<AppState>,
 7979    mut cx: AsyncApp,
 7980) -> anyhow::Result<WindowHandle<Workspace>> {
 7981    // find an existing workspace to focus and show call controls
 7982    let active_window = activate_any_workspace_window(&mut cx);
 7983    if active_window.is_none() {
 7984        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))
 7985            .await?;
 7986    }
 7987    activate_any_workspace_window(&mut cx).context("could not open zed")
 7988}
 7989
 7990fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7991    cx.update(|cx| {
 7992        if let Some(workspace_window) = cx
 7993            .active_window()
 7994            .and_then(|window| window.downcast::<Workspace>())
 7995        {
 7996            return Some(workspace_window);
 7997        }
 7998
 7999        for window in cx.windows() {
 8000            if let Some(workspace_window) = window.downcast::<Workspace>() {
 8001                workspace_window
 8002                    .update(cx, |_, window, _| window.activate_window())
 8003                    .ok();
 8004                return Some(workspace_window);
 8005            }
 8006        }
 8007        None
 8008    })
 8009}
 8010
 8011pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 8012    cx.windows()
 8013        .into_iter()
 8014        .filter_map(|window| window.downcast::<Workspace>())
 8015        .filter(|workspace| {
 8016            workspace
 8017                .read(cx)
 8018                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 8019        })
 8020        .collect()
 8021}
 8022
 8023#[derive(Default)]
 8024pub struct OpenOptions {
 8025    pub visible: Option<OpenVisible>,
 8026    pub focus: Option<bool>,
 8027    pub open_new_workspace: Option<bool>,
 8028    pub prefer_focused_window: bool,
 8029    pub replace_window: Option<WindowHandle<Workspace>>,
 8030    pub env: Option<HashMap<String, String>>,
 8031}
 8032
 8033#[allow(clippy::type_complexity)]
 8034pub fn open_paths(
 8035    abs_paths: &[PathBuf],
 8036    app_state: Arc<AppState>,
 8037    open_options: OpenOptions,
 8038    cx: &mut App,
 8039) -> Task<
 8040    anyhow::Result<(
 8041        WindowHandle<Workspace>,
 8042        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8043    )>,
 8044> {
 8045    let abs_paths = abs_paths.to_vec();
 8046    let mut existing = None;
 8047    let mut best_match = None;
 8048    let mut open_visible = OpenVisible::All;
 8049    #[cfg(target_os = "windows")]
 8050    let wsl_path = abs_paths
 8051        .iter()
 8052        .find_map(|p| util::paths::WslPath::from_path(p));
 8053
 8054    cx.spawn(async move |cx| {
 8055        if open_options.open_new_workspace != Some(true) {
 8056            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8057            let all_metadatas = futures::future::join_all(all_paths)
 8058                .await
 8059                .into_iter()
 8060                .filter_map(|result| result.ok().flatten())
 8061                .collect::<Vec<_>>();
 8062
 8063            cx.update(|cx| {
 8064                for window in local_workspace_windows(cx) {
 8065                    if let Ok(workspace) = window.read(cx) {
 8066                        let m = workspace.project.read(cx).visibility_for_paths(
 8067                            &abs_paths,
 8068                            &all_metadatas,
 8069                            open_options.open_new_workspace == None,
 8070                            cx,
 8071                        );
 8072                        if m > best_match {
 8073                            existing = Some(window);
 8074                            best_match = m;
 8075                        } else if best_match.is_none()
 8076                            && open_options.open_new_workspace == Some(false)
 8077                        {
 8078                            existing = Some(window)
 8079                        }
 8080                    }
 8081                }
 8082            });
 8083
 8084            if open_options.open_new_workspace.is_none()
 8085                && (existing.is_none() || open_options.prefer_focused_window)
 8086                && all_metadatas.iter().all(|file| !file.is_dir)
 8087            {
 8088                cx.update(|cx| {
 8089                    if let Some(window) = cx
 8090                        .active_window()
 8091                        .and_then(|window| window.downcast::<Workspace>())
 8092                        && let Ok(workspace) = window.read(cx)
 8093                    {
 8094                        let project = workspace.project().read(cx);
 8095                        if project.is_local() && !project.is_via_collab() {
 8096                            existing = Some(window);
 8097                            open_visible = OpenVisible::None;
 8098                            return;
 8099                        }
 8100                    }
 8101                    for window in local_workspace_windows(cx) {
 8102                        if let Ok(workspace) = window.read(cx) {
 8103                            let project = workspace.project().read(cx);
 8104                            if project.is_via_collab() {
 8105                                continue;
 8106                            }
 8107                            existing = Some(window);
 8108                            open_visible = OpenVisible::None;
 8109                            break;
 8110                        }
 8111                    }
 8112                });
 8113            }
 8114        }
 8115
 8116        let result = if let Some(existing) = existing {
 8117            let open_task = existing
 8118                .update(cx, |workspace, window, cx| {
 8119                    window.activate_window();
 8120                    workspace.open_paths(
 8121                        abs_paths,
 8122                        OpenOptions {
 8123                            visible: Some(open_visible),
 8124                            ..Default::default()
 8125                        },
 8126                        None,
 8127                        window,
 8128                        cx,
 8129                    )
 8130                })?
 8131                .await;
 8132
 8133            _ = existing.update(cx, |workspace, _, cx| {
 8134                for item in open_task.iter().flatten() {
 8135                    if let Err(e) = item {
 8136                        workspace.show_error(&e, cx);
 8137                    }
 8138                }
 8139            });
 8140
 8141            Ok((existing, open_task))
 8142        } else {
 8143            cx.update(move |cx| {
 8144                Workspace::new_local(
 8145                    abs_paths,
 8146                    app_state.clone(),
 8147                    open_options.replace_window,
 8148                    open_options.env,
 8149                    None,
 8150                    cx,
 8151                )
 8152            })
 8153            .await
 8154        };
 8155
 8156        #[cfg(target_os = "windows")]
 8157        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8158            && let Ok((workspace, _)) = &result
 8159        {
 8160            workspace
 8161                .update(cx, move |workspace, _window, cx| {
 8162                    struct OpenInWsl;
 8163                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8164                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8165                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8166                        cx.new(move |cx| {
 8167                            MessageNotification::new(msg, cx)
 8168                                .primary_message("Open in WSL")
 8169                                .primary_icon(IconName::FolderOpen)
 8170                                .primary_on_click(move |window, cx| {
 8171                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8172                                            distro: remote::WslConnectionOptions {
 8173                                                    distro_name: distro.clone(),
 8174                                                user: None,
 8175                                            },
 8176                                            paths: vec![path.clone().into()],
 8177                                        }), cx)
 8178                                })
 8179                        })
 8180                    });
 8181                })
 8182                .unwrap();
 8183        };
 8184        result
 8185    })
 8186}
 8187
 8188pub fn open_new(
 8189    open_options: OpenOptions,
 8190    app_state: Arc<AppState>,
 8191    cx: &mut App,
 8192    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8193) -> Task<anyhow::Result<()>> {
 8194    let task = Workspace::new_local(
 8195        Vec::new(),
 8196        app_state,
 8197        None,
 8198        open_options.env,
 8199        Some(Box::new(init)),
 8200        cx,
 8201    );
 8202    cx.spawn(async move |_cx| {
 8203        let (_workspace, _opened_paths) = task.await?;
 8204        // Init callback is called synchronously during workspace creation
 8205        Ok(())
 8206    })
 8207}
 8208
 8209pub fn create_and_open_local_file(
 8210    path: &'static Path,
 8211    window: &mut Window,
 8212    cx: &mut Context<Workspace>,
 8213    default_content: impl 'static + Send + FnOnce() -> Rope,
 8214) -> Task<Result<Box<dyn ItemHandle>>> {
 8215    cx.spawn_in(window, async move |workspace, cx| {
 8216        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8217        if !fs.is_file(path).await {
 8218            fs.create_file(path, Default::default()).await?;
 8219            fs.save(path, &default_content(), Default::default())
 8220                .await?;
 8221        }
 8222
 8223        let mut items = workspace
 8224            .update_in(cx, |workspace, window, cx| {
 8225                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8226                    workspace.open_paths(
 8227                        vec![path.to_path_buf()],
 8228                        OpenOptions {
 8229                            visible: Some(OpenVisible::None),
 8230                            ..Default::default()
 8231                        },
 8232                        None,
 8233                        window,
 8234                        cx,
 8235                    )
 8236                })
 8237            })?
 8238            .await?
 8239            .await;
 8240
 8241        let item = items.pop().flatten();
 8242        item.with_context(|| format!("path {path:?} is not a file"))?
 8243    })
 8244}
 8245
 8246pub fn open_remote_project_with_new_connection(
 8247    window: WindowHandle<Workspace>,
 8248    remote_connection: Arc<dyn RemoteConnection>,
 8249    cancel_rx: oneshot::Receiver<()>,
 8250    delegate: Arc<dyn RemoteClientDelegate>,
 8251    app_state: Arc<AppState>,
 8252    paths: Vec<PathBuf>,
 8253    cx: &mut App,
 8254) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8255    cx.spawn(async move |cx| {
 8256        let (workspace_id, serialized_workspace) =
 8257            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8258                .await?;
 8259
 8260        let session = match cx
 8261            .update(|cx| {
 8262                remote::RemoteClient::new(
 8263                    ConnectionIdentifier::Workspace(workspace_id.0),
 8264                    remote_connection,
 8265                    cancel_rx,
 8266                    delegate,
 8267                    cx,
 8268                )
 8269            })
 8270            .await?
 8271        {
 8272            Some(result) => result,
 8273            None => return Ok(Vec::new()),
 8274        };
 8275
 8276        let project = cx.update(|cx| {
 8277            project::Project::remote(
 8278                session,
 8279                app_state.client.clone(),
 8280                app_state.node_runtime.clone(),
 8281                app_state.user_store.clone(),
 8282                app_state.languages.clone(),
 8283                app_state.fs.clone(),
 8284                true,
 8285                cx,
 8286            )
 8287        });
 8288
 8289        open_remote_project_inner(
 8290            project,
 8291            paths,
 8292            workspace_id,
 8293            serialized_workspace,
 8294            app_state,
 8295            window,
 8296            cx,
 8297        )
 8298        .await
 8299    })
 8300}
 8301
 8302pub fn open_remote_project_with_existing_connection(
 8303    connection_options: RemoteConnectionOptions,
 8304    project: Entity<Project>,
 8305    paths: Vec<PathBuf>,
 8306    app_state: Arc<AppState>,
 8307    window: WindowHandle<Workspace>,
 8308    cx: &mut AsyncApp,
 8309) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8310    cx.spawn(async move |cx| {
 8311        let (workspace_id, serialized_workspace) =
 8312            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8313
 8314        open_remote_project_inner(
 8315            project,
 8316            paths,
 8317            workspace_id,
 8318            serialized_workspace,
 8319            app_state,
 8320            window,
 8321            cx,
 8322        )
 8323        .await
 8324    })
 8325}
 8326
 8327async fn open_remote_project_inner(
 8328    project: Entity<Project>,
 8329    paths: Vec<PathBuf>,
 8330    workspace_id: WorkspaceId,
 8331    serialized_workspace: Option<SerializedWorkspace>,
 8332    app_state: Arc<AppState>,
 8333    window: WindowHandle<Workspace>,
 8334    cx: &mut AsyncApp,
 8335) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8336    let toolchains = DB.toolchains(workspace_id).await?;
 8337    for (toolchain, worktree_path, path) in toolchains {
 8338        project
 8339            .update(cx, |this, cx| {
 8340                let Some(worktree_id) =
 8341                    this.find_worktree(&worktree_path, cx)
 8342                        .and_then(|(worktree, rel_path)| {
 8343                            if rel_path.is_empty() {
 8344                                Some(worktree.read(cx).id())
 8345                            } else {
 8346                                None
 8347                            }
 8348                        })
 8349                else {
 8350                    return Task::ready(None);
 8351                };
 8352
 8353                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8354            })
 8355            .await;
 8356    }
 8357    let mut project_paths_to_open = vec![];
 8358    let mut project_path_errors = vec![];
 8359
 8360    for path in paths {
 8361        let result = cx
 8362            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 8363            .await;
 8364        match result {
 8365            Ok((_, project_path)) => {
 8366                project_paths_to_open.push((path.clone(), Some(project_path)));
 8367            }
 8368            Err(error) => {
 8369                project_path_errors.push(error);
 8370            }
 8371        };
 8372    }
 8373
 8374    if project_paths_to_open.is_empty() {
 8375        return Err(project_path_errors.pop().context("no paths given")?);
 8376    }
 8377
 8378    if let Some(detach_session_task) = window
 8379        .update(cx, |_workspace, window, cx| {
 8380            cx.spawn_in(window, async move |this, cx| {
 8381                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8382            })
 8383        })
 8384        .ok()
 8385    {
 8386        detach_session_task.await.ok();
 8387    }
 8388
 8389    cx.update_window(window.into(), |_, window, cx| {
 8390        window.replace_root(cx, |window, cx| {
 8391            telemetry::event!("SSH Project Opened");
 8392
 8393            let mut workspace =
 8394                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8395            workspace.update_history(cx);
 8396
 8397            if let Some(ref serialized) = serialized_workspace {
 8398                workspace.centered_layout = serialized.centered_layout;
 8399            }
 8400
 8401            workspace
 8402        });
 8403    })?;
 8404
 8405    let items = window
 8406        .update(cx, |_, window, cx| {
 8407            window.activate_window();
 8408            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8409        })?
 8410        .await?;
 8411
 8412    window.update(cx, |workspace, _, cx| {
 8413        for error in project_path_errors {
 8414            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8415                if let Some(path) = error.error_tag("path") {
 8416                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8417                }
 8418            } else {
 8419                workspace.show_error(&error, cx)
 8420            }
 8421        }
 8422    })?;
 8423
 8424    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8425}
 8426
 8427fn deserialize_remote_project(
 8428    connection_options: RemoteConnectionOptions,
 8429    paths: Vec<PathBuf>,
 8430    cx: &AsyncApp,
 8431) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8432    cx.background_spawn(async move {
 8433        let remote_connection_id = persistence::DB
 8434            .get_or_create_remote_connection(connection_options)
 8435            .await?;
 8436
 8437        let serialized_workspace =
 8438            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8439
 8440        let workspace_id = if let Some(workspace_id) =
 8441            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8442        {
 8443            workspace_id
 8444        } else {
 8445            persistence::DB.next_id().await?
 8446        };
 8447
 8448        Ok((workspace_id, serialized_workspace))
 8449    })
 8450}
 8451
 8452pub fn join_in_room_project(
 8453    project_id: u64,
 8454    follow_user_id: u64,
 8455    app_state: Arc<AppState>,
 8456    cx: &mut App,
 8457) -> Task<Result<()>> {
 8458    let windows = cx.windows();
 8459    cx.spawn(async move |cx| {
 8460        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8461            window_handle
 8462                .downcast::<Workspace>()
 8463                .and_then(|window_handle| {
 8464                    window_handle
 8465                        .update(cx, |workspace, _window, cx| {
 8466                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8467                                Some(window_handle)
 8468                            } else {
 8469                                None
 8470                            }
 8471                        })
 8472                        .unwrap_or(None)
 8473                })
 8474        });
 8475
 8476        let workspace = if let Some(existing_workspace) = existing_workspace {
 8477            existing_workspace
 8478        } else {
 8479            let active_call = cx.update(|cx| ActiveCall::global(cx));
 8480            let room = active_call
 8481                .read_with(cx, |call, _| call.room().cloned())
 8482                .context("not in a call")?;
 8483            let project = room
 8484                .update(cx, |room, cx| {
 8485                    room.join_project(
 8486                        project_id,
 8487                        app_state.languages.clone(),
 8488                        app_state.fs.clone(),
 8489                        cx,
 8490                    )
 8491                })
 8492                .await?;
 8493
 8494            let window_bounds_override = window_bounds_env_override();
 8495            cx.update(|cx| {
 8496                let mut options = (app_state.build_window_options)(None, cx);
 8497                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8498                cx.open_window(options, |window, cx| {
 8499                    cx.new(|cx| {
 8500                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8501                    })
 8502                })
 8503            })?
 8504        };
 8505
 8506        workspace.update(cx, |workspace, window, cx| {
 8507            cx.activate(true);
 8508            window.activate_window();
 8509
 8510            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8511                let follow_peer_id = room
 8512                    .read(cx)
 8513                    .remote_participants()
 8514                    .iter()
 8515                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8516                    .map(|(_, p)| p.peer_id)
 8517                    .or_else(|| {
 8518                        // If we couldn't follow the given user, follow the host instead.
 8519                        let collaborator = workspace
 8520                            .project()
 8521                            .read(cx)
 8522                            .collaborators()
 8523                            .values()
 8524                            .find(|collaborator| collaborator.is_host)?;
 8525                        Some(collaborator.peer_id)
 8526                    });
 8527
 8528                if let Some(follow_peer_id) = follow_peer_id {
 8529                    workspace.follow(follow_peer_id, window, cx);
 8530                }
 8531            }
 8532        })?;
 8533
 8534        anyhow::Ok(())
 8535    })
 8536}
 8537
 8538pub fn reload(cx: &mut App) {
 8539    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8540    let mut workspace_windows = cx
 8541        .windows()
 8542        .into_iter()
 8543        .filter_map(|window| window.downcast::<Workspace>())
 8544        .collect::<Vec<_>>();
 8545
 8546    // If multiple windows have unsaved changes, and need a save prompt,
 8547    // prompt in the active window before switching to a different window.
 8548    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8549
 8550    let mut prompt = None;
 8551    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8552        prompt = window
 8553            .update(cx, |_, window, cx| {
 8554                window.prompt(
 8555                    PromptLevel::Info,
 8556                    "Are you sure you want to restart?",
 8557                    None,
 8558                    &["Restart", "Cancel"],
 8559                    cx,
 8560                )
 8561            })
 8562            .ok();
 8563    }
 8564
 8565    cx.spawn(async move |cx| {
 8566        if let Some(prompt) = prompt {
 8567            let answer = prompt.await?;
 8568            if answer != 0 {
 8569                return anyhow::Ok(());
 8570            }
 8571        }
 8572
 8573        // If the user cancels any save prompt, then keep the app open.
 8574        for window in workspace_windows {
 8575            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8576                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8577            }) && !should_close.await?
 8578            {
 8579                return anyhow::Ok(());
 8580            }
 8581        }
 8582        cx.update(|cx| cx.restart());
 8583        anyhow::Ok(())
 8584    })
 8585    .detach_and_log_err(cx);
 8586}
 8587
 8588fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8589    let mut parts = value.split(',');
 8590    let x: usize = parts.next()?.parse().ok()?;
 8591    let y: usize = parts.next()?.parse().ok()?;
 8592    Some(point(px(x as f32), px(y as f32)))
 8593}
 8594
 8595fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8596    let mut parts = value.split(',');
 8597    let width: usize = parts.next()?.parse().ok()?;
 8598    let height: usize = parts.next()?.parse().ok()?;
 8599    Some(size(px(width as f32), px(height as f32)))
 8600}
 8601
 8602/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8603pub fn client_side_decorations(
 8604    element: impl IntoElement,
 8605    window: &mut Window,
 8606    cx: &mut App,
 8607) -> Stateful<Div> {
 8608    const BORDER_SIZE: Pixels = px(1.0);
 8609    let decorations = window.window_decorations();
 8610
 8611    match decorations {
 8612        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8613        Decorations::Server => window.set_client_inset(px(0.0)),
 8614    }
 8615
 8616    struct GlobalResizeEdge(ResizeEdge);
 8617    impl Global for GlobalResizeEdge {}
 8618
 8619    div()
 8620        .id("window-backdrop")
 8621        .bg(transparent_black())
 8622        .map(|div| match decorations {
 8623            Decorations::Server => div,
 8624            Decorations::Client { tiling, .. } => div
 8625                .when(!(tiling.top || tiling.right), |div| {
 8626                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8627                })
 8628                .when(!(tiling.top || tiling.left), |div| {
 8629                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8630                })
 8631                .when(!(tiling.bottom || tiling.right), |div| {
 8632                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8633                })
 8634                .when(!(tiling.bottom || tiling.left), |div| {
 8635                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8636                })
 8637                .when(!tiling.top, |div| {
 8638                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8639                })
 8640                .when(!tiling.bottom, |div| {
 8641                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8642                })
 8643                .when(!tiling.left, |div| {
 8644                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8645                })
 8646                .when(!tiling.right, |div| {
 8647                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8648                })
 8649                .on_mouse_move(move |e, window, cx| {
 8650                    let size = window.window_bounds().get_bounds().size;
 8651                    let pos = e.position;
 8652
 8653                    let new_edge =
 8654                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8655
 8656                    let edge = cx.try_global::<GlobalResizeEdge>();
 8657                    if new_edge != edge.map(|edge| edge.0) {
 8658                        window
 8659                            .window_handle()
 8660                            .update(cx, |workspace, _, cx| {
 8661                                cx.notify(workspace.entity_id());
 8662                            })
 8663                            .ok();
 8664                    }
 8665                })
 8666                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8667                    let size = window.window_bounds().get_bounds().size;
 8668                    let pos = e.position;
 8669
 8670                    let edge = match resize_edge(
 8671                        pos,
 8672                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8673                        size,
 8674                        tiling,
 8675                    ) {
 8676                        Some(value) => value,
 8677                        None => return,
 8678                    };
 8679
 8680                    window.start_window_resize(edge);
 8681                }),
 8682        })
 8683        .size_full()
 8684        .child(
 8685            div()
 8686                .cursor(CursorStyle::Arrow)
 8687                .map(|div| match decorations {
 8688                    Decorations::Server => div,
 8689                    Decorations::Client { tiling } => div
 8690                        .border_color(cx.theme().colors().border)
 8691                        .when(!(tiling.top || tiling.right), |div| {
 8692                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8693                        })
 8694                        .when(!(tiling.top || tiling.left), |div| {
 8695                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8696                        })
 8697                        .when(!(tiling.bottom || tiling.right), |div| {
 8698                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8699                        })
 8700                        .when(!(tiling.bottom || tiling.left), |div| {
 8701                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8702                        })
 8703                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8704                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8705                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8706                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8707                        .when(!tiling.is_tiled(), |div| {
 8708                            div.shadow(vec![gpui::BoxShadow {
 8709                                color: Hsla {
 8710                                    h: 0.,
 8711                                    s: 0.,
 8712                                    l: 0.,
 8713                                    a: 0.4,
 8714                                },
 8715                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8716                                spread_radius: px(0.),
 8717                                offset: point(px(0.0), px(0.0)),
 8718                            }])
 8719                        }),
 8720                })
 8721                .on_mouse_move(|_e, _, cx| {
 8722                    cx.stop_propagation();
 8723                })
 8724                .size_full()
 8725                .child(element),
 8726        )
 8727        .map(|div| match decorations {
 8728            Decorations::Server => div,
 8729            Decorations::Client { tiling, .. } => div.child(
 8730                canvas(
 8731                    |_bounds, window, _| {
 8732                        window.insert_hitbox(
 8733                            Bounds::new(
 8734                                point(px(0.0), px(0.0)),
 8735                                window.window_bounds().get_bounds().size,
 8736                            ),
 8737                            HitboxBehavior::Normal,
 8738                        )
 8739                    },
 8740                    move |_bounds, hitbox, window, cx| {
 8741                        let mouse = window.mouse_position();
 8742                        let size = window.window_bounds().get_bounds().size;
 8743                        let Some(edge) =
 8744                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8745                        else {
 8746                            return;
 8747                        };
 8748                        cx.set_global(GlobalResizeEdge(edge));
 8749                        window.set_cursor_style(
 8750                            match edge {
 8751                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8752                                ResizeEdge::Left | ResizeEdge::Right => {
 8753                                    CursorStyle::ResizeLeftRight
 8754                                }
 8755                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8756                                    CursorStyle::ResizeUpLeftDownRight
 8757                                }
 8758                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8759                                    CursorStyle::ResizeUpRightDownLeft
 8760                                }
 8761                            },
 8762                            &hitbox,
 8763                        );
 8764                    },
 8765                )
 8766                .size_full()
 8767                .absolute(),
 8768            ),
 8769        })
 8770}
 8771
 8772fn resize_edge(
 8773    pos: Point<Pixels>,
 8774    shadow_size: Pixels,
 8775    window_size: Size<Pixels>,
 8776    tiling: Tiling,
 8777) -> Option<ResizeEdge> {
 8778    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8779    if bounds.contains(&pos) {
 8780        return None;
 8781    }
 8782
 8783    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8784    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8785    if !tiling.top && top_left_bounds.contains(&pos) {
 8786        return Some(ResizeEdge::TopLeft);
 8787    }
 8788
 8789    let top_right_bounds = Bounds::new(
 8790        Point::new(window_size.width - corner_size.width, px(0.)),
 8791        corner_size,
 8792    );
 8793    if !tiling.top && top_right_bounds.contains(&pos) {
 8794        return Some(ResizeEdge::TopRight);
 8795    }
 8796
 8797    let bottom_left_bounds = Bounds::new(
 8798        Point::new(px(0.), window_size.height - corner_size.height),
 8799        corner_size,
 8800    );
 8801    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8802        return Some(ResizeEdge::BottomLeft);
 8803    }
 8804
 8805    let bottom_right_bounds = Bounds::new(
 8806        Point::new(
 8807            window_size.width - corner_size.width,
 8808            window_size.height - corner_size.height,
 8809        ),
 8810        corner_size,
 8811    );
 8812    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8813        return Some(ResizeEdge::BottomRight);
 8814    }
 8815
 8816    if !tiling.top && pos.y < shadow_size {
 8817        Some(ResizeEdge::Top)
 8818    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8819        Some(ResizeEdge::Bottom)
 8820    } else if !tiling.left && pos.x < shadow_size {
 8821        Some(ResizeEdge::Left)
 8822    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8823        Some(ResizeEdge::Right)
 8824    } else {
 8825        None
 8826    }
 8827}
 8828
 8829fn join_pane_into_active(
 8830    active_pane: &Entity<Pane>,
 8831    pane: &Entity<Pane>,
 8832    window: &mut Window,
 8833    cx: &mut App,
 8834) {
 8835    if pane == active_pane {
 8836    } else if pane.read(cx).items_len() == 0 {
 8837        pane.update(cx, |_, cx| {
 8838            cx.emit(pane::Event::Remove {
 8839                focus_on_pane: None,
 8840            });
 8841        })
 8842    } else {
 8843        move_all_items(pane, active_pane, window, cx);
 8844    }
 8845}
 8846
 8847fn move_all_items(
 8848    from_pane: &Entity<Pane>,
 8849    to_pane: &Entity<Pane>,
 8850    window: &mut Window,
 8851    cx: &mut App,
 8852) {
 8853    let destination_is_different = from_pane != to_pane;
 8854    let mut moved_items = 0;
 8855    for (item_ix, item_handle) in from_pane
 8856        .read(cx)
 8857        .items()
 8858        .enumerate()
 8859        .map(|(ix, item)| (ix, item.clone()))
 8860        .collect::<Vec<_>>()
 8861    {
 8862        let ix = item_ix - moved_items;
 8863        if destination_is_different {
 8864            // Close item from previous pane
 8865            from_pane.update(cx, |source, cx| {
 8866                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8867            });
 8868            moved_items += 1;
 8869        }
 8870
 8871        // This automatically removes duplicate items in the pane
 8872        to_pane.update(cx, |destination, cx| {
 8873            destination.add_item(item_handle, true, true, None, window, cx);
 8874            window.focus(&destination.focus_handle(cx), cx)
 8875        });
 8876    }
 8877}
 8878
 8879pub fn move_item(
 8880    source: &Entity<Pane>,
 8881    destination: &Entity<Pane>,
 8882    item_id_to_move: EntityId,
 8883    destination_index: usize,
 8884    activate: bool,
 8885    window: &mut Window,
 8886    cx: &mut App,
 8887) {
 8888    let Some((item_ix, item_handle)) = source
 8889        .read(cx)
 8890        .items()
 8891        .enumerate()
 8892        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8893        .map(|(ix, item)| (ix, item.clone()))
 8894    else {
 8895        // Tab was closed during drag
 8896        return;
 8897    };
 8898
 8899    if source != destination {
 8900        // Close item from previous pane
 8901        source.update(cx, |source, cx| {
 8902            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8903        });
 8904    }
 8905
 8906    // This automatically removes duplicate items in the pane
 8907    destination.update(cx, |destination, cx| {
 8908        destination.add_item_inner(
 8909            item_handle,
 8910            activate,
 8911            activate,
 8912            activate,
 8913            Some(destination_index),
 8914            window,
 8915            cx,
 8916        );
 8917        if activate {
 8918            window.focus(&destination.focus_handle(cx), cx)
 8919        }
 8920    });
 8921}
 8922
 8923pub fn move_active_item(
 8924    source: &Entity<Pane>,
 8925    destination: &Entity<Pane>,
 8926    focus_destination: bool,
 8927    close_if_empty: bool,
 8928    window: &mut Window,
 8929    cx: &mut App,
 8930) {
 8931    if source == destination {
 8932        return;
 8933    }
 8934    let Some(active_item) = source.read(cx).active_item() else {
 8935        return;
 8936    };
 8937    source.update(cx, |source_pane, cx| {
 8938        let item_id = active_item.item_id();
 8939        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8940        destination.update(cx, |target_pane, cx| {
 8941            target_pane.add_item(
 8942                active_item,
 8943                focus_destination,
 8944                focus_destination,
 8945                Some(target_pane.items_len()),
 8946                window,
 8947                cx,
 8948            );
 8949        });
 8950    });
 8951}
 8952
 8953pub fn clone_active_item(
 8954    workspace_id: Option<WorkspaceId>,
 8955    source: &Entity<Pane>,
 8956    destination: &Entity<Pane>,
 8957    focus_destination: bool,
 8958    window: &mut Window,
 8959    cx: &mut App,
 8960) {
 8961    if source == destination {
 8962        return;
 8963    }
 8964    let Some(active_item) = source.read(cx).active_item() else {
 8965        return;
 8966    };
 8967    if !active_item.can_split(cx) {
 8968        return;
 8969    }
 8970    let destination = destination.downgrade();
 8971    let task = active_item.clone_on_split(workspace_id, window, cx);
 8972    window
 8973        .spawn(cx, async move |cx| {
 8974            let Some(clone) = task.await else {
 8975                return;
 8976            };
 8977            destination
 8978                .update_in(cx, |target_pane, window, cx| {
 8979                    target_pane.add_item(
 8980                        clone,
 8981                        focus_destination,
 8982                        focus_destination,
 8983                        Some(target_pane.items_len()),
 8984                        window,
 8985                        cx,
 8986                    );
 8987                })
 8988                .log_err();
 8989        })
 8990        .detach();
 8991}
 8992
 8993#[derive(Debug)]
 8994pub struct WorkspacePosition {
 8995    pub window_bounds: Option<WindowBounds>,
 8996    pub display: Option<Uuid>,
 8997    pub centered_layout: bool,
 8998}
 8999
 9000pub fn remote_workspace_position_from_db(
 9001    connection_options: RemoteConnectionOptions,
 9002    paths_to_open: &[PathBuf],
 9003    cx: &App,
 9004) -> Task<Result<WorkspacePosition>> {
 9005    let paths = paths_to_open.to_vec();
 9006
 9007    cx.background_spawn(async move {
 9008        let remote_connection_id = persistence::DB
 9009            .get_or_create_remote_connection(connection_options)
 9010            .await
 9011            .context("fetching serialized ssh project")?;
 9012        let serialized_workspace =
 9013            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9014
 9015        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9016            (Some(WindowBounds::Windowed(bounds)), None)
 9017        } else {
 9018            let restorable_bounds = serialized_workspace
 9019                .as_ref()
 9020                .and_then(|workspace| {
 9021                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9022                })
 9023                .or_else(|| persistence::read_default_window_bounds());
 9024
 9025            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9026                (Some(serialized_bounds), Some(serialized_display))
 9027            } else {
 9028                (None, None)
 9029            }
 9030        };
 9031
 9032        let centered_layout = serialized_workspace
 9033            .as_ref()
 9034            .map(|w| w.centered_layout)
 9035            .unwrap_or(false);
 9036
 9037        Ok(WorkspacePosition {
 9038            window_bounds,
 9039            display,
 9040            centered_layout,
 9041        })
 9042    })
 9043}
 9044
 9045pub fn with_active_or_new_workspace(
 9046    cx: &mut App,
 9047    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9048) {
 9049    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 9050        Some(workspace) => {
 9051            cx.defer(move |cx| {
 9052                workspace
 9053                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 9054                    .log_err();
 9055            });
 9056        }
 9057        None => {
 9058            let app_state = AppState::global(cx);
 9059            if let Some(app_state) = app_state.upgrade() {
 9060                open_new(
 9061                    OpenOptions::default(),
 9062                    app_state,
 9063                    cx,
 9064                    move |workspace, window, cx| f(workspace, window, cx),
 9065                )
 9066                .detach_and_log_err(cx);
 9067            }
 9068        }
 9069    }
 9070}
 9071
 9072#[cfg(test)]
 9073mod tests {
 9074    use std::{cell::RefCell, rc::Rc};
 9075
 9076    use super::*;
 9077    use crate::{
 9078        dock::{PanelEvent, test::TestPanel},
 9079        item::{
 9080            ItemBufferKind, ItemEvent,
 9081            test::{TestItem, TestProjectItem},
 9082        },
 9083    };
 9084    use fs::FakeFs;
 9085    use gpui::{
 9086        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9087        UpdateGlobal, VisualTestContext, px,
 9088    };
 9089    use project::{Project, ProjectEntryId};
 9090    use serde_json::json;
 9091    use settings::SettingsStore;
 9092    use util::rel_path::rel_path;
 9093
 9094    #[gpui::test]
 9095    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9096        init_test(cx);
 9097
 9098        let fs = FakeFs::new(cx.executor());
 9099        let project = Project::test(fs, [], cx).await;
 9100        let (workspace, cx) =
 9101            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9102
 9103        // Adding an item with no ambiguity renders the tab without detail.
 9104        let item1 = cx.new(|cx| {
 9105            let mut item = TestItem::new(cx);
 9106            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9107            item
 9108        });
 9109        workspace.update_in(cx, |workspace, window, cx| {
 9110            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9111        });
 9112        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9113
 9114        // Adding an item that creates ambiguity increases the level of detail on
 9115        // both tabs.
 9116        let item2 = cx.new_window_entity(|_window, cx| {
 9117            let mut item = TestItem::new(cx);
 9118            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9119            item
 9120        });
 9121        workspace.update_in(cx, |workspace, window, cx| {
 9122            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9123        });
 9124        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9125        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9126
 9127        // Adding an item that creates ambiguity increases the level of detail only
 9128        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9129        // we stop at the highest detail available.
 9130        let item3 = cx.new(|cx| {
 9131            let mut item = TestItem::new(cx);
 9132            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9133            item
 9134        });
 9135        workspace.update_in(cx, |workspace, window, cx| {
 9136            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9137        });
 9138        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9139        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9140        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9141    }
 9142
 9143    #[gpui::test]
 9144    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9145        init_test(cx);
 9146
 9147        let fs = FakeFs::new(cx.executor());
 9148        fs.insert_tree(
 9149            "/root1",
 9150            json!({
 9151                "one.txt": "",
 9152                "two.txt": "",
 9153            }),
 9154        )
 9155        .await;
 9156        fs.insert_tree(
 9157            "/root2",
 9158            json!({
 9159                "three.txt": "",
 9160            }),
 9161        )
 9162        .await;
 9163
 9164        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9165        let (workspace, cx) =
 9166            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9167        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9168        let worktree_id = project.update(cx, |project, cx| {
 9169            project.worktrees(cx).next().unwrap().read(cx).id()
 9170        });
 9171
 9172        let item1 = cx.new(|cx| {
 9173            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9174        });
 9175        let item2 = cx.new(|cx| {
 9176            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9177        });
 9178
 9179        // Add an item to an empty pane
 9180        workspace.update_in(cx, |workspace, window, cx| {
 9181            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9182        });
 9183        project.update(cx, |project, cx| {
 9184            assert_eq!(
 9185                project.active_entry(),
 9186                project
 9187                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9188                    .map(|e| e.id)
 9189            );
 9190        });
 9191        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9192
 9193        // Add a second item to a non-empty pane
 9194        workspace.update_in(cx, |workspace, window, cx| {
 9195            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9196        });
 9197        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9198        project.update(cx, |project, cx| {
 9199            assert_eq!(
 9200                project.active_entry(),
 9201                project
 9202                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9203                    .map(|e| e.id)
 9204            );
 9205        });
 9206
 9207        // Close the active item
 9208        pane.update_in(cx, |pane, window, cx| {
 9209            pane.close_active_item(&Default::default(), window, cx)
 9210        })
 9211        .await
 9212        .unwrap();
 9213        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9214        project.update(cx, |project, cx| {
 9215            assert_eq!(
 9216                project.active_entry(),
 9217                project
 9218                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9219                    .map(|e| e.id)
 9220            );
 9221        });
 9222
 9223        // Add a project folder
 9224        project
 9225            .update(cx, |project, cx| {
 9226                project.find_or_create_worktree("root2", true, cx)
 9227            })
 9228            .await
 9229            .unwrap();
 9230        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9231
 9232        // Remove a project folder
 9233        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9234        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9235    }
 9236
 9237    #[gpui::test]
 9238    async fn test_close_window(cx: &mut TestAppContext) {
 9239        init_test(cx);
 9240
 9241        let fs = FakeFs::new(cx.executor());
 9242        fs.insert_tree("/root", json!({ "one": "" })).await;
 9243
 9244        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9245        let (workspace, cx) =
 9246            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9247
 9248        // When there are no dirty items, there's nothing to do.
 9249        let item1 = cx.new(TestItem::new);
 9250        workspace.update_in(cx, |w, window, cx| {
 9251            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9252        });
 9253        let task = workspace.update_in(cx, |w, window, cx| {
 9254            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9255        });
 9256        assert!(task.await.unwrap());
 9257
 9258        // When there are dirty untitled items, prompt to save each one. If the user
 9259        // cancels any prompt, then abort.
 9260        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9261        let item3 = cx.new(|cx| {
 9262            TestItem::new(cx)
 9263                .with_dirty(true)
 9264                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9265        });
 9266        workspace.update_in(cx, |w, window, cx| {
 9267            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9268            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9269        });
 9270        let task = workspace.update_in(cx, |w, window, cx| {
 9271            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9272        });
 9273        cx.executor().run_until_parked();
 9274        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9275        cx.executor().run_until_parked();
 9276        assert!(!cx.has_pending_prompt());
 9277        assert!(!task.await.unwrap());
 9278    }
 9279
 9280    #[gpui::test]
 9281    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9282        init_test(cx);
 9283
 9284        // Register TestItem as a serializable item
 9285        cx.update(|cx| {
 9286            register_serializable_item::<TestItem>(cx);
 9287        });
 9288
 9289        let fs = FakeFs::new(cx.executor());
 9290        fs.insert_tree("/root", json!({ "one": "" })).await;
 9291
 9292        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9293        let (workspace, cx) =
 9294            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9295
 9296        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9297        let item1 = cx.new(|cx| {
 9298            TestItem::new(cx)
 9299                .with_dirty(true)
 9300                .with_serialize(|| Some(Task::ready(Ok(()))))
 9301        });
 9302        let item2 = cx.new(|cx| {
 9303            TestItem::new(cx)
 9304                .with_dirty(true)
 9305                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9306                .with_serialize(|| Some(Task::ready(Ok(()))))
 9307        });
 9308        workspace.update_in(cx, |w, window, cx| {
 9309            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9310            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9311        });
 9312        let task = workspace.update_in(cx, |w, window, cx| {
 9313            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9314        });
 9315        assert!(task.await.unwrap());
 9316    }
 9317
 9318    #[gpui::test]
 9319    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9320        init_test(cx);
 9321
 9322        let fs = FakeFs::new(cx.executor());
 9323
 9324        let project = Project::test(fs, None, cx).await;
 9325        let (workspace, cx) =
 9326            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9327
 9328        let item1 = cx.new(|cx| {
 9329            TestItem::new(cx)
 9330                .with_dirty(true)
 9331                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9332        });
 9333        let item2 = cx.new(|cx| {
 9334            TestItem::new(cx)
 9335                .with_dirty(true)
 9336                .with_conflict(true)
 9337                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9338        });
 9339        let item3 = cx.new(|cx| {
 9340            TestItem::new(cx)
 9341                .with_dirty(true)
 9342                .with_conflict(true)
 9343                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9344        });
 9345        let item4 = cx.new(|cx| {
 9346            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9347                let project_item = TestProjectItem::new_untitled(cx);
 9348                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9349                project_item
 9350            }])
 9351        });
 9352        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9353            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9354            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9355            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9356            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9357            workspace.active_pane().clone()
 9358        });
 9359
 9360        let close_items = pane.update_in(cx, |pane, window, cx| {
 9361            pane.activate_item(1, true, true, window, cx);
 9362            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9363            let item1_id = item1.item_id();
 9364            let item3_id = item3.item_id();
 9365            let item4_id = item4.item_id();
 9366            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9367                [item1_id, item3_id, item4_id].contains(&id)
 9368            })
 9369        });
 9370        cx.executor().run_until_parked();
 9371
 9372        assert!(cx.has_pending_prompt());
 9373        cx.simulate_prompt_answer("Save all");
 9374
 9375        cx.executor().run_until_parked();
 9376
 9377        // Item 1 is saved. There's a prompt to save item 3.
 9378        pane.update(cx, |pane, cx| {
 9379            assert_eq!(item1.read(cx).save_count, 1);
 9380            assert_eq!(item1.read(cx).save_as_count, 0);
 9381            assert_eq!(item1.read(cx).reload_count, 0);
 9382            assert_eq!(pane.items_len(), 3);
 9383            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9384        });
 9385        assert!(cx.has_pending_prompt());
 9386
 9387        // Cancel saving item 3.
 9388        cx.simulate_prompt_answer("Discard");
 9389        cx.executor().run_until_parked();
 9390
 9391        // Item 3 is reloaded. There's a prompt to save item 4.
 9392        pane.update(cx, |pane, cx| {
 9393            assert_eq!(item3.read(cx).save_count, 0);
 9394            assert_eq!(item3.read(cx).save_as_count, 0);
 9395            assert_eq!(item3.read(cx).reload_count, 1);
 9396            assert_eq!(pane.items_len(), 2);
 9397            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9398        });
 9399
 9400        // There's a prompt for a path for item 4.
 9401        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9402        close_items.await.unwrap();
 9403
 9404        // The requested items are closed.
 9405        pane.update(cx, |pane, cx| {
 9406            assert_eq!(item4.read(cx).save_count, 0);
 9407            assert_eq!(item4.read(cx).save_as_count, 1);
 9408            assert_eq!(item4.read(cx).reload_count, 0);
 9409            assert_eq!(pane.items_len(), 1);
 9410            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9411        });
 9412    }
 9413
 9414    #[gpui::test]
 9415    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9416        init_test(cx);
 9417
 9418        let fs = FakeFs::new(cx.executor());
 9419        let project = Project::test(fs, [], cx).await;
 9420        let (workspace, cx) =
 9421            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9422
 9423        // Create several workspace items with single project entries, and two
 9424        // workspace items with multiple project entries.
 9425        let single_entry_items = (0..=4)
 9426            .map(|project_entry_id| {
 9427                cx.new(|cx| {
 9428                    TestItem::new(cx)
 9429                        .with_dirty(true)
 9430                        .with_project_items(&[dirty_project_item(
 9431                            project_entry_id,
 9432                            &format!("{project_entry_id}.txt"),
 9433                            cx,
 9434                        )])
 9435                })
 9436            })
 9437            .collect::<Vec<_>>();
 9438        let item_2_3 = cx.new(|cx| {
 9439            TestItem::new(cx)
 9440                .with_dirty(true)
 9441                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9442                .with_project_items(&[
 9443                    single_entry_items[2].read(cx).project_items[0].clone(),
 9444                    single_entry_items[3].read(cx).project_items[0].clone(),
 9445                ])
 9446        });
 9447        let item_3_4 = cx.new(|cx| {
 9448            TestItem::new(cx)
 9449                .with_dirty(true)
 9450                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9451                .with_project_items(&[
 9452                    single_entry_items[3].read(cx).project_items[0].clone(),
 9453                    single_entry_items[4].read(cx).project_items[0].clone(),
 9454                ])
 9455        });
 9456
 9457        // Create two panes that contain the following project entries:
 9458        //   left pane:
 9459        //     multi-entry items:   (2, 3)
 9460        //     single-entry items:  0, 2, 3, 4
 9461        //   right pane:
 9462        //     single-entry items:  4, 1
 9463        //     multi-entry items:   (3, 4)
 9464        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9465            let left_pane = workspace.active_pane().clone();
 9466            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9467            workspace.add_item_to_active_pane(
 9468                single_entry_items[0].boxed_clone(),
 9469                None,
 9470                true,
 9471                window,
 9472                cx,
 9473            );
 9474            workspace.add_item_to_active_pane(
 9475                single_entry_items[2].boxed_clone(),
 9476                None,
 9477                true,
 9478                window,
 9479                cx,
 9480            );
 9481            workspace.add_item_to_active_pane(
 9482                single_entry_items[3].boxed_clone(),
 9483                None,
 9484                true,
 9485                window,
 9486                cx,
 9487            );
 9488            workspace.add_item_to_active_pane(
 9489                single_entry_items[4].boxed_clone(),
 9490                None,
 9491                true,
 9492                window,
 9493                cx,
 9494            );
 9495
 9496            let right_pane =
 9497                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9498
 9499            let boxed_clone = single_entry_items[1].boxed_clone();
 9500            let right_pane = window.spawn(cx, async move |cx| {
 9501                right_pane.await.inspect(|right_pane| {
 9502                    right_pane
 9503                        .update_in(cx, |pane, window, cx| {
 9504                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9505                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9506                        })
 9507                        .unwrap();
 9508                })
 9509            });
 9510
 9511            (left_pane, right_pane)
 9512        });
 9513        let right_pane = right_pane.await.unwrap();
 9514        cx.focus(&right_pane);
 9515
 9516        let close = right_pane.update_in(cx, |pane, window, cx| {
 9517            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9518                .unwrap()
 9519        });
 9520        cx.executor().run_until_parked();
 9521
 9522        let msg = cx.pending_prompt().unwrap().0;
 9523        assert!(msg.contains("1.txt"));
 9524        assert!(!msg.contains("2.txt"));
 9525        assert!(!msg.contains("3.txt"));
 9526        assert!(!msg.contains("4.txt"));
 9527
 9528        // With best-effort close, cancelling item 1 keeps it open but items 4
 9529        // and (3,4) still close since their entries exist in left pane.
 9530        cx.simulate_prompt_answer("Cancel");
 9531        close.await;
 9532
 9533        right_pane.read_with(cx, |pane, _| {
 9534            assert_eq!(pane.items_len(), 1);
 9535        });
 9536
 9537        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9538        left_pane
 9539            .update_in(cx, |left_pane, window, cx| {
 9540                left_pane.close_item_by_id(
 9541                    single_entry_items[3].entity_id(),
 9542                    SaveIntent::Skip,
 9543                    window,
 9544                    cx,
 9545                )
 9546            })
 9547            .await
 9548            .unwrap();
 9549
 9550        let close = left_pane.update_in(cx, |pane, window, cx| {
 9551            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9552                .unwrap()
 9553        });
 9554        cx.executor().run_until_parked();
 9555
 9556        let details = cx.pending_prompt().unwrap().1;
 9557        assert!(details.contains("0.txt"));
 9558        assert!(details.contains("3.txt"));
 9559        assert!(details.contains("4.txt"));
 9560        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9561        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9562        // assert!(!details.contains("2.txt"));
 9563
 9564        cx.simulate_prompt_answer("Save all");
 9565        cx.executor().run_until_parked();
 9566        close.await;
 9567
 9568        left_pane.read_with(cx, |pane, _| {
 9569            assert_eq!(pane.items_len(), 0);
 9570        });
 9571    }
 9572
 9573    #[gpui::test]
 9574    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9575        init_test(cx);
 9576
 9577        let fs = FakeFs::new(cx.executor());
 9578        let project = Project::test(fs, [], cx).await;
 9579        let (workspace, cx) =
 9580            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9581        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9582
 9583        let item = cx.new(|cx| {
 9584            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9585        });
 9586        let item_id = item.entity_id();
 9587        workspace.update_in(cx, |workspace, window, cx| {
 9588            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9589        });
 9590
 9591        // Autosave on window change.
 9592        item.update(cx, |item, cx| {
 9593            SettingsStore::update_global(cx, |settings, cx| {
 9594                settings.update_user_settings(cx, |settings| {
 9595                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9596                })
 9597            });
 9598            item.is_dirty = true;
 9599        });
 9600
 9601        // Deactivating the window saves the file.
 9602        cx.deactivate_window();
 9603        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9604
 9605        // Re-activating the window doesn't save the file.
 9606        cx.update(|window, _| window.activate_window());
 9607        cx.executor().run_until_parked();
 9608        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9609
 9610        // Autosave on focus change.
 9611        item.update_in(cx, |item, window, cx| {
 9612            cx.focus_self(window);
 9613            SettingsStore::update_global(cx, |settings, cx| {
 9614                settings.update_user_settings(cx, |settings| {
 9615                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9616                })
 9617            });
 9618            item.is_dirty = true;
 9619        });
 9620        // Blurring the item saves the file.
 9621        item.update_in(cx, |_, window, _| window.blur());
 9622        cx.executor().run_until_parked();
 9623        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9624
 9625        // Deactivating the window still saves the file.
 9626        item.update_in(cx, |item, window, cx| {
 9627            cx.focus_self(window);
 9628            item.is_dirty = true;
 9629        });
 9630        cx.deactivate_window();
 9631        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9632
 9633        // Autosave after delay.
 9634        item.update(cx, |item, cx| {
 9635            SettingsStore::update_global(cx, |settings, cx| {
 9636                settings.update_user_settings(cx, |settings| {
 9637                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9638                        milliseconds: 500.into(),
 9639                    });
 9640                })
 9641            });
 9642            item.is_dirty = true;
 9643            cx.emit(ItemEvent::Edit);
 9644        });
 9645
 9646        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9647        cx.executor().advance_clock(Duration::from_millis(250));
 9648        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9649
 9650        // After delay expires, the file is saved.
 9651        cx.executor().advance_clock(Duration::from_millis(250));
 9652        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9653
 9654        // Autosave after delay, should save earlier than delay if tab is closed
 9655        item.update(cx, |item, cx| {
 9656            item.is_dirty = true;
 9657            cx.emit(ItemEvent::Edit);
 9658        });
 9659        cx.executor().advance_clock(Duration::from_millis(250));
 9660        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9661
 9662        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9663        pane.update_in(cx, |pane, window, cx| {
 9664            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9665        })
 9666        .await
 9667        .unwrap();
 9668        assert!(!cx.has_pending_prompt());
 9669        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9670
 9671        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9672        workspace.update_in(cx, |workspace, window, cx| {
 9673            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9674        });
 9675        item.update_in(cx, |item, _window, cx| {
 9676            item.is_dirty = true;
 9677            for project_item in &mut item.project_items {
 9678                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9679            }
 9680        });
 9681        cx.run_until_parked();
 9682        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9683
 9684        // Autosave on focus change, ensuring closing the tab counts as such.
 9685        item.update(cx, |item, cx| {
 9686            SettingsStore::update_global(cx, |settings, cx| {
 9687                settings.update_user_settings(cx, |settings| {
 9688                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9689                })
 9690            });
 9691            item.is_dirty = true;
 9692            for project_item in &mut item.project_items {
 9693                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9694            }
 9695        });
 9696
 9697        pane.update_in(cx, |pane, window, cx| {
 9698            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9699        })
 9700        .await
 9701        .unwrap();
 9702        assert!(!cx.has_pending_prompt());
 9703        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9704
 9705        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9706        workspace.update_in(cx, |workspace, window, cx| {
 9707            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9708        });
 9709        item.update_in(cx, |item, window, cx| {
 9710            item.project_items[0].update(cx, |item, _| {
 9711                item.entry_id = None;
 9712            });
 9713            item.is_dirty = true;
 9714            window.blur();
 9715        });
 9716        cx.run_until_parked();
 9717        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9718
 9719        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9720        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9721            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9722        });
 9723        cx.run_until_parked();
 9724        assert!(cx.has_pending_prompt());
 9725        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9726    }
 9727
 9728    #[gpui::test]
 9729    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9730        init_test(cx);
 9731
 9732        let fs = FakeFs::new(cx.executor());
 9733
 9734        let project = Project::test(fs, [], cx).await;
 9735        let (workspace, cx) =
 9736            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9737
 9738        let item = cx.new(|cx| {
 9739            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9740        });
 9741        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9742        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9743        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9744
 9745        workspace.update_in(cx, |workspace, window, cx| {
 9746            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9747            let toolbar_notification_count = toolbar_notify_count.clone();
 9748            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9749                *toolbar_notification_count.borrow_mut() += 1
 9750            })
 9751            .detach();
 9752        });
 9753
 9754        pane.read_with(cx, |pane, _| {
 9755            assert!(!pane.can_navigate_backward());
 9756            assert!(!pane.can_navigate_forward());
 9757        });
 9758
 9759        item.update_in(cx, |item, _, cx| {
 9760            item.set_state("one".to_string(), cx);
 9761        });
 9762
 9763        // Toolbar must be notified to re-render the navigation buttons
 9764        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9765
 9766        pane.read_with(cx, |pane, _| {
 9767            assert!(pane.can_navigate_backward());
 9768            assert!(!pane.can_navigate_forward());
 9769        });
 9770
 9771        workspace
 9772            .update_in(cx, |workspace, window, cx| {
 9773                workspace.go_back(pane.downgrade(), window, cx)
 9774            })
 9775            .await
 9776            .unwrap();
 9777
 9778        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9779        pane.read_with(cx, |pane, _| {
 9780            assert!(!pane.can_navigate_backward());
 9781            assert!(pane.can_navigate_forward());
 9782        });
 9783    }
 9784
 9785    #[gpui::test]
 9786    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9787        init_test(cx);
 9788        let fs = FakeFs::new(cx.executor());
 9789
 9790        let project = Project::test(fs, [], cx).await;
 9791        let (workspace, cx) =
 9792            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9793
 9794        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9795            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9796            workspace.add_panel(panel.clone(), window, cx);
 9797
 9798            workspace
 9799                .right_dock()
 9800                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9801
 9802            panel
 9803        });
 9804
 9805        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9806        pane.update_in(cx, |pane, window, cx| {
 9807            let item = cx.new(TestItem::new);
 9808            pane.add_item(Box::new(item), true, true, None, window, cx);
 9809        });
 9810
 9811        // Transfer focus from center to panel
 9812        workspace.update_in(cx, |workspace, window, cx| {
 9813            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9814        });
 9815
 9816        workspace.update_in(cx, |workspace, window, cx| {
 9817            assert!(workspace.right_dock().read(cx).is_open());
 9818            assert!(!panel.is_zoomed(window, cx));
 9819            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9820        });
 9821
 9822        // Transfer focus from panel to center
 9823        workspace.update_in(cx, |workspace, window, cx| {
 9824            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9825        });
 9826
 9827        workspace.update_in(cx, |workspace, window, cx| {
 9828            assert!(workspace.right_dock().read(cx).is_open());
 9829            assert!(!panel.is_zoomed(window, cx));
 9830            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9831        });
 9832
 9833        // Close the dock
 9834        workspace.update_in(cx, |workspace, window, cx| {
 9835            workspace.toggle_dock(DockPosition::Right, window, cx);
 9836        });
 9837
 9838        workspace.update_in(cx, |workspace, window, cx| {
 9839            assert!(!workspace.right_dock().read(cx).is_open());
 9840            assert!(!panel.is_zoomed(window, cx));
 9841            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9842        });
 9843
 9844        // Open the dock
 9845        workspace.update_in(cx, |workspace, window, cx| {
 9846            workspace.toggle_dock(DockPosition::Right, window, cx);
 9847        });
 9848
 9849        workspace.update_in(cx, |workspace, window, cx| {
 9850            assert!(workspace.right_dock().read(cx).is_open());
 9851            assert!(!panel.is_zoomed(window, cx));
 9852            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9853        });
 9854
 9855        // Focus and zoom panel
 9856        panel.update_in(cx, |panel, window, cx| {
 9857            cx.focus_self(window);
 9858            panel.set_zoomed(true, window, cx)
 9859        });
 9860
 9861        workspace.update_in(cx, |workspace, window, cx| {
 9862            assert!(workspace.right_dock().read(cx).is_open());
 9863            assert!(panel.is_zoomed(window, cx));
 9864            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9865        });
 9866
 9867        // Transfer focus to the center closes the dock
 9868        workspace.update_in(cx, |workspace, window, cx| {
 9869            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9870        });
 9871
 9872        workspace.update_in(cx, |workspace, window, cx| {
 9873            assert!(!workspace.right_dock().read(cx).is_open());
 9874            assert!(panel.is_zoomed(window, cx));
 9875            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9876        });
 9877
 9878        // Transferring focus back to the panel keeps it zoomed
 9879        workspace.update_in(cx, |workspace, window, cx| {
 9880            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9881        });
 9882
 9883        workspace.update_in(cx, |workspace, window, cx| {
 9884            assert!(workspace.right_dock().read(cx).is_open());
 9885            assert!(panel.is_zoomed(window, cx));
 9886            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9887        });
 9888
 9889        // Close the dock while it is zoomed
 9890        workspace.update_in(cx, |workspace, window, cx| {
 9891            workspace.toggle_dock(DockPosition::Right, window, cx)
 9892        });
 9893
 9894        workspace.update_in(cx, |workspace, window, cx| {
 9895            assert!(!workspace.right_dock().read(cx).is_open());
 9896            assert!(panel.is_zoomed(window, cx));
 9897            assert!(workspace.zoomed.is_none());
 9898            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9899        });
 9900
 9901        // Opening the dock, when it's zoomed, retains focus
 9902        workspace.update_in(cx, |workspace, window, cx| {
 9903            workspace.toggle_dock(DockPosition::Right, window, cx)
 9904        });
 9905
 9906        workspace.update_in(cx, |workspace, window, cx| {
 9907            assert!(workspace.right_dock().read(cx).is_open());
 9908            assert!(panel.is_zoomed(window, cx));
 9909            assert!(workspace.zoomed.is_some());
 9910            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9911        });
 9912
 9913        // Unzoom and close the panel, zoom the active pane.
 9914        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9915        workspace.update_in(cx, |workspace, window, cx| {
 9916            workspace.toggle_dock(DockPosition::Right, window, cx)
 9917        });
 9918        pane.update_in(cx, |pane, window, cx| {
 9919            pane.toggle_zoom(&Default::default(), window, cx)
 9920        });
 9921
 9922        // Opening a dock unzooms the pane.
 9923        workspace.update_in(cx, |workspace, window, cx| {
 9924            workspace.toggle_dock(DockPosition::Right, window, cx)
 9925        });
 9926        workspace.update_in(cx, |workspace, window, cx| {
 9927            let pane = pane.read(cx);
 9928            assert!(!pane.is_zoomed());
 9929            assert!(!pane.focus_handle(cx).is_focused(window));
 9930            assert!(workspace.right_dock().read(cx).is_open());
 9931            assert!(workspace.zoomed.is_none());
 9932        });
 9933    }
 9934
 9935    #[gpui::test]
 9936    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9937        init_test(cx);
 9938        let fs = FakeFs::new(cx.executor());
 9939
 9940        let project = Project::test(fs, [], cx).await;
 9941        let (workspace, cx) =
 9942            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9943
 9944        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9945            workspace.active_pane().clone()
 9946        });
 9947
 9948        // Add an item to the pane so it can be zoomed
 9949        workspace.update_in(cx, |workspace, window, cx| {
 9950            let item = cx.new(TestItem::new);
 9951            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9952        });
 9953
 9954        // Initially not zoomed
 9955        workspace.update_in(cx, |workspace, _window, cx| {
 9956            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9957            assert!(
 9958                workspace.zoomed.is_none(),
 9959                "Workspace should track no zoomed pane"
 9960            );
 9961            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9962        });
 9963
 9964        // Zoom In
 9965        pane.update_in(cx, |pane, window, cx| {
 9966            pane.zoom_in(&crate::ZoomIn, window, cx);
 9967        });
 9968
 9969        workspace.update_in(cx, |workspace, window, cx| {
 9970            assert!(
 9971                pane.read(cx).is_zoomed(),
 9972                "Pane should be zoomed after ZoomIn"
 9973            );
 9974            assert!(
 9975                workspace.zoomed.is_some(),
 9976                "Workspace should track the zoomed pane"
 9977            );
 9978            assert!(
 9979                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9980                "ZoomIn should focus the pane"
 9981            );
 9982        });
 9983
 9984        // Zoom In again is a no-op
 9985        pane.update_in(cx, |pane, window, cx| {
 9986            pane.zoom_in(&crate::ZoomIn, window, cx);
 9987        });
 9988
 9989        workspace.update_in(cx, |workspace, window, cx| {
 9990            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9991            assert!(
 9992                workspace.zoomed.is_some(),
 9993                "Workspace still tracks zoomed pane"
 9994            );
 9995            assert!(
 9996                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9997                "Pane remains focused after repeated ZoomIn"
 9998            );
 9999        });
10000
10001        // Zoom Out
10002        pane.update_in(cx, |pane, window, cx| {
10003            pane.zoom_out(&crate::ZoomOut, window, cx);
10004        });
10005
10006        workspace.update_in(cx, |workspace, _window, cx| {
10007            assert!(
10008                !pane.read(cx).is_zoomed(),
10009                "Pane should unzoom after ZoomOut"
10010            );
10011            assert!(
10012                workspace.zoomed.is_none(),
10013                "Workspace clears zoom tracking after ZoomOut"
10014            );
10015        });
10016
10017        // Zoom Out again is a no-op
10018        pane.update_in(cx, |pane, window, cx| {
10019            pane.zoom_out(&crate::ZoomOut, window, cx);
10020        });
10021
10022        workspace.update_in(cx, |workspace, _window, cx| {
10023            assert!(
10024                !pane.read(cx).is_zoomed(),
10025                "Second ZoomOut keeps pane unzoomed"
10026            );
10027            assert!(
10028                workspace.zoomed.is_none(),
10029                "Workspace remains without zoomed pane"
10030            );
10031        });
10032    }
10033
10034    #[gpui::test]
10035    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
10036        init_test(cx);
10037        let fs = FakeFs::new(cx.executor());
10038
10039        let project = Project::test(fs, [], cx).await;
10040        let (workspace, cx) =
10041            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10042        workspace.update_in(cx, |workspace, window, cx| {
10043            // Open two docks
10044            let left_dock = workspace.dock_at_position(DockPosition::Left);
10045            let right_dock = workspace.dock_at_position(DockPosition::Right);
10046
10047            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10048            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10049
10050            assert!(left_dock.read(cx).is_open());
10051            assert!(right_dock.read(cx).is_open());
10052        });
10053
10054        workspace.update_in(cx, |workspace, window, cx| {
10055            // Toggle all docks - should close both
10056            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10057
10058            let left_dock = workspace.dock_at_position(DockPosition::Left);
10059            let right_dock = workspace.dock_at_position(DockPosition::Right);
10060            assert!(!left_dock.read(cx).is_open());
10061            assert!(!right_dock.read(cx).is_open());
10062        });
10063
10064        workspace.update_in(cx, |workspace, window, cx| {
10065            // Toggle again - should reopen both
10066            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10067
10068            let left_dock = workspace.dock_at_position(DockPosition::Left);
10069            let right_dock = workspace.dock_at_position(DockPosition::Right);
10070            assert!(left_dock.read(cx).is_open());
10071            assert!(right_dock.read(cx).is_open());
10072        });
10073    }
10074
10075    #[gpui::test]
10076    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10077        init_test(cx);
10078        let fs = FakeFs::new(cx.executor());
10079
10080        let project = Project::test(fs, [], cx).await;
10081        let (workspace, cx) =
10082            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10083        workspace.update_in(cx, |workspace, window, cx| {
10084            // Open two docks
10085            let left_dock = workspace.dock_at_position(DockPosition::Left);
10086            let right_dock = workspace.dock_at_position(DockPosition::Right);
10087
10088            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10089            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10090
10091            assert!(left_dock.read(cx).is_open());
10092            assert!(right_dock.read(cx).is_open());
10093        });
10094
10095        workspace.update_in(cx, |workspace, window, cx| {
10096            // Close them manually
10097            workspace.toggle_dock(DockPosition::Left, window, cx);
10098            workspace.toggle_dock(DockPosition::Right, window, cx);
10099
10100            let left_dock = workspace.dock_at_position(DockPosition::Left);
10101            let right_dock = workspace.dock_at_position(DockPosition::Right);
10102            assert!(!left_dock.read(cx).is_open());
10103            assert!(!right_dock.read(cx).is_open());
10104        });
10105
10106        workspace.update_in(cx, |workspace, window, cx| {
10107            // Toggle all docks - only last closed (right dock) should reopen
10108            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10109
10110            let left_dock = workspace.dock_at_position(DockPosition::Left);
10111            let right_dock = workspace.dock_at_position(DockPosition::Right);
10112            assert!(!left_dock.read(cx).is_open());
10113            assert!(right_dock.read(cx).is_open());
10114        });
10115    }
10116
10117    #[gpui::test]
10118    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10119        init_test(cx);
10120        let fs = FakeFs::new(cx.executor());
10121        let project = Project::test(fs, [], cx).await;
10122        let (workspace, cx) =
10123            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10124
10125        // Open two docks (left and right) with one panel each
10126        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10127            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10128            workspace.add_panel(left_panel.clone(), window, cx);
10129
10130            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10131            workspace.add_panel(right_panel.clone(), window, cx);
10132
10133            workspace.toggle_dock(DockPosition::Left, window, cx);
10134            workspace.toggle_dock(DockPosition::Right, window, cx);
10135
10136            // Verify initial state
10137            assert!(
10138                workspace.left_dock().read(cx).is_open(),
10139                "Left dock should be open"
10140            );
10141            assert_eq!(
10142                workspace
10143                    .left_dock()
10144                    .read(cx)
10145                    .visible_panel()
10146                    .unwrap()
10147                    .panel_id(),
10148                left_panel.panel_id(),
10149                "Left panel should be visible in left dock"
10150            );
10151            assert!(
10152                workspace.right_dock().read(cx).is_open(),
10153                "Right dock should be open"
10154            );
10155            assert_eq!(
10156                workspace
10157                    .right_dock()
10158                    .read(cx)
10159                    .visible_panel()
10160                    .unwrap()
10161                    .panel_id(),
10162                right_panel.panel_id(),
10163                "Right panel should be visible in right dock"
10164            );
10165            assert!(
10166                !workspace.bottom_dock().read(cx).is_open(),
10167                "Bottom dock should be closed"
10168            );
10169
10170            (left_panel, right_panel)
10171        });
10172
10173        // Focus the left panel and move it to the next position (bottom dock)
10174        workspace.update_in(cx, |workspace, window, cx| {
10175            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10176            assert!(
10177                left_panel.read(cx).focus_handle(cx).is_focused(window),
10178                "Left panel should be focused"
10179            );
10180        });
10181
10182        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10183
10184        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10185        workspace.update(cx, |workspace, cx| {
10186            assert!(
10187                !workspace.left_dock().read(cx).is_open(),
10188                "Left dock should be closed"
10189            );
10190            assert!(
10191                workspace.bottom_dock().read(cx).is_open(),
10192                "Bottom dock should now be open"
10193            );
10194            assert_eq!(
10195                left_panel.read(cx).position,
10196                DockPosition::Bottom,
10197                "Left panel should now be in the bottom dock"
10198            );
10199            assert_eq!(
10200                workspace
10201                    .bottom_dock()
10202                    .read(cx)
10203                    .visible_panel()
10204                    .unwrap()
10205                    .panel_id(),
10206                left_panel.panel_id(),
10207                "Left panel should be the visible panel in the bottom dock"
10208            );
10209        });
10210
10211        // Toggle all docks off
10212        workspace.update_in(cx, |workspace, window, cx| {
10213            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10214            assert!(
10215                !workspace.left_dock().read(cx).is_open(),
10216                "Left dock should be closed"
10217            );
10218            assert!(
10219                !workspace.right_dock().read(cx).is_open(),
10220                "Right dock should be closed"
10221            );
10222            assert!(
10223                !workspace.bottom_dock().read(cx).is_open(),
10224                "Bottom dock should be closed"
10225            );
10226        });
10227
10228        // Toggle all docks back on and verify positions are restored
10229        workspace.update_in(cx, |workspace, window, cx| {
10230            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10231            assert!(
10232                !workspace.left_dock().read(cx).is_open(),
10233                "Left dock should remain closed"
10234            );
10235            assert!(
10236                workspace.right_dock().read(cx).is_open(),
10237                "Right dock should remain open"
10238            );
10239            assert!(
10240                workspace.bottom_dock().read(cx).is_open(),
10241                "Bottom dock should remain open"
10242            );
10243            assert_eq!(
10244                left_panel.read(cx).position,
10245                DockPosition::Bottom,
10246                "Left panel should remain in the bottom dock"
10247            );
10248            assert_eq!(
10249                right_panel.read(cx).position,
10250                DockPosition::Right,
10251                "Right panel should remain in the right dock"
10252            );
10253            assert_eq!(
10254                workspace
10255                    .bottom_dock()
10256                    .read(cx)
10257                    .visible_panel()
10258                    .unwrap()
10259                    .panel_id(),
10260                left_panel.panel_id(),
10261                "Left panel should be the visible panel in the right dock"
10262            );
10263        });
10264    }
10265
10266    #[gpui::test]
10267    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10268        init_test(cx);
10269
10270        let fs = FakeFs::new(cx.executor());
10271
10272        let project = Project::test(fs, None, cx).await;
10273        let (workspace, cx) =
10274            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10275
10276        // Let's arrange the panes like this:
10277        //
10278        // +-----------------------+
10279        // |         top           |
10280        // +------+--------+-------+
10281        // | left | center | right |
10282        // +------+--------+-------+
10283        // |        bottom         |
10284        // +-----------------------+
10285
10286        let top_item = cx.new(|cx| {
10287            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10288        });
10289        let bottom_item = cx.new(|cx| {
10290            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10291        });
10292        let left_item = cx.new(|cx| {
10293            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10294        });
10295        let right_item = cx.new(|cx| {
10296            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10297        });
10298        let center_item = cx.new(|cx| {
10299            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10300        });
10301
10302        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10303            let top_pane_id = workspace.active_pane().entity_id();
10304            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10305            workspace.split_pane(
10306                workspace.active_pane().clone(),
10307                SplitDirection::Down,
10308                window,
10309                cx,
10310            );
10311            top_pane_id
10312        });
10313        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10314            let bottom_pane_id = workspace.active_pane().entity_id();
10315            workspace.add_item_to_active_pane(
10316                Box::new(bottom_item.clone()),
10317                None,
10318                false,
10319                window,
10320                cx,
10321            );
10322            workspace.split_pane(
10323                workspace.active_pane().clone(),
10324                SplitDirection::Up,
10325                window,
10326                cx,
10327            );
10328            bottom_pane_id
10329        });
10330        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10331            let left_pane_id = workspace.active_pane().entity_id();
10332            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10333            workspace.split_pane(
10334                workspace.active_pane().clone(),
10335                SplitDirection::Right,
10336                window,
10337                cx,
10338            );
10339            left_pane_id
10340        });
10341        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10342            let right_pane_id = workspace.active_pane().entity_id();
10343            workspace.add_item_to_active_pane(
10344                Box::new(right_item.clone()),
10345                None,
10346                false,
10347                window,
10348                cx,
10349            );
10350            workspace.split_pane(
10351                workspace.active_pane().clone(),
10352                SplitDirection::Left,
10353                window,
10354                cx,
10355            );
10356            right_pane_id
10357        });
10358        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10359            let center_pane_id = workspace.active_pane().entity_id();
10360            workspace.add_item_to_active_pane(
10361                Box::new(center_item.clone()),
10362                None,
10363                false,
10364                window,
10365                cx,
10366            );
10367            center_pane_id
10368        });
10369        cx.executor().run_until_parked();
10370
10371        workspace.update_in(cx, |workspace, window, cx| {
10372            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10373
10374            // Join into next from center pane into right
10375            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10376        });
10377
10378        workspace.update_in(cx, |workspace, window, cx| {
10379            let active_pane = workspace.active_pane();
10380            assert_eq!(right_pane_id, active_pane.entity_id());
10381            assert_eq!(2, active_pane.read(cx).items_len());
10382            let item_ids_in_pane =
10383                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10384            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10385            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10386
10387            // Join into next from right pane into bottom
10388            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10389        });
10390
10391        workspace.update_in(cx, |workspace, window, cx| {
10392            let active_pane = workspace.active_pane();
10393            assert_eq!(bottom_pane_id, active_pane.entity_id());
10394            assert_eq!(3, active_pane.read(cx).items_len());
10395            let item_ids_in_pane =
10396                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10397            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10398            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10399            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10400
10401            // Join into next from bottom pane into left
10402            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10403        });
10404
10405        workspace.update_in(cx, |workspace, window, cx| {
10406            let active_pane = workspace.active_pane();
10407            assert_eq!(left_pane_id, active_pane.entity_id());
10408            assert_eq!(4, active_pane.read(cx).items_len());
10409            let item_ids_in_pane =
10410                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10411            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10412            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10413            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10414            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10415
10416            // Join into next from left pane into top
10417            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10418        });
10419
10420        workspace.update_in(cx, |workspace, window, cx| {
10421            let active_pane = workspace.active_pane();
10422            assert_eq!(top_pane_id, active_pane.entity_id());
10423            assert_eq!(5, active_pane.read(cx).items_len());
10424            let item_ids_in_pane =
10425                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10426            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10427            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10428            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10429            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10430            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10431
10432            // Single pane left: no-op
10433            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10434        });
10435
10436        workspace.update(cx, |workspace, _cx| {
10437            let active_pane = workspace.active_pane();
10438            assert_eq!(top_pane_id, active_pane.entity_id());
10439        });
10440    }
10441
10442    fn add_an_item_to_active_pane(
10443        cx: &mut VisualTestContext,
10444        workspace: &Entity<Workspace>,
10445        item_id: u64,
10446    ) -> Entity<TestItem> {
10447        let item = cx.new(|cx| {
10448            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10449                item_id,
10450                "item{item_id}.txt",
10451                cx,
10452            )])
10453        });
10454        workspace.update_in(cx, |workspace, window, cx| {
10455            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10456        });
10457        item
10458    }
10459
10460    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10461        workspace.update_in(cx, |workspace, window, cx| {
10462            workspace.split_pane(
10463                workspace.active_pane().clone(),
10464                SplitDirection::Right,
10465                window,
10466                cx,
10467            )
10468        })
10469    }
10470
10471    #[gpui::test]
10472    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10473        init_test(cx);
10474        let fs = FakeFs::new(cx.executor());
10475        let project = Project::test(fs, None, cx).await;
10476        let (workspace, cx) =
10477            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10478
10479        add_an_item_to_active_pane(cx, &workspace, 1);
10480        split_pane(cx, &workspace);
10481        add_an_item_to_active_pane(cx, &workspace, 2);
10482        split_pane(cx, &workspace); // empty pane
10483        split_pane(cx, &workspace);
10484        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10485
10486        cx.executor().run_until_parked();
10487
10488        workspace.update(cx, |workspace, cx| {
10489            let num_panes = workspace.panes().len();
10490            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10491            let active_item = workspace
10492                .active_pane()
10493                .read(cx)
10494                .active_item()
10495                .expect("item is in focus");
10496
10497            assert_eq!(num_panes, 4);
10498            assert_eq!(num_items_in_current_pane, 1);
10499            assert_eq!(active_item.item_id(), last_item.item_id());
10500        });
10501
10502        workspace.update_in(cx, |workspace, window, cx| {
10503            workspace.join_all_panes(window, cx);
10504        });
10505
10506        workspace.update(cx, |workspace, cx| {
10507            let num_panes = workspace.panes().len();
10508            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10509            let active_item = workspace
10510                .active_pane()
10511                .read(cx)
10512                .active_item()
10513                .expect("item is in focus");
10514
10515            assert_eq!(num_panes, 1);
10516            assert_eq!(num_items_in_current_pane, 3);
10517            assert_eq!(active_item.item_id(), last_item.item_id());
10518        });
10519    }
10520    struct TestModal(FocusHandle);
10521
10522    impl TestModal {
10523        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10524            Self(cx.focus_handle())
10525        }
10526    }
10527
10528    impl EventEmitter<DismissEvent> for TestModal {}
10529
10530    impl Focusable for TestModal {
10531        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10532            self.0.clone()
10533        }
10534    }
10535
10536    impl ModalView for TestModal {}
10537
10538    impl Render for TestModal {
10539        fn render(
10540            &mut self,
10541            _window: &mut Window,
10542            _cx: &mut Context<TestModal>,
10543        ) -> impl IntoElement {
10544            div().track_focus(&self.0)
10545        }
10546    }
10547
10548    #[gpui::test]
10549    async fn test_panels(cx: &mut gpui::TestAppContext) {
10550        init_test(cx);
10551        let fs = FakeFs::new(cx.executor());
10552
10553        let project = Project::test(fs, [], cx).await;
10554        let (workspace, cx) =
10555            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10556
10557        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10558            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10559            workspace.add_panel(panel_1.clone(), window, cx);
10560            workspace.toggle_dock(DockPosition::Left, window, cx);
10561            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10562            workspace.add_panel(panel_2.clone(), window, cx);
10563            workspace.toggle_dock(DockPosition::Right, window, cx);
10564
10565            let left_dock = workspace.left_dock();
10566            assert_eq!(
10567                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10568                panel_1.panel_id()
10569            );
10570            assert_eq!(
10571                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10572                panel_1.size(window, cx)
10573            );
10574
10575            left_dock.update(cx, |left_dock, cx| {
10576                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10577            });
10578            assert_eq!(
10579                workspace
10580                    .right_dock()
10581                    .read(cx)
10582                    .visible_panel()
10583                    .unwrap()
10584                    .panel_id(),
10585                panel_2.panel_id(),
10586            );
10587
10588            (panel_1, panel_2)
10589        });
10590
10591        // Move panel_1 to the right
10592        panel_1.update_in(cx, |panel_1, window, cx| {
10593            panel_1.set_position(DockPosition::Right, window, cx)
10594        });
10595
10596        workspace.update_in(cx, |workspace, window, cx| {
10597            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10598            // Since it was the only panel on the left, the left dock should now be closed.
10599            assert!(!workspace.left_dock().read(cx).is_open());
10600            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10601            let right_dock = workspace.right_dock();
10602            assert_eq!(
10603                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10604                panel_1.panel_id()
10605            );
10606            assert_eq!(
10607                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10608                px(1337.)
10609            );
10610
10611            // Now we move panel_2 to the left
10612            panel_2.set_position(DockPosition::Left, window, cx);
10613        });
10614
10615        workspace.update(cx, |workspace, cx| {
10616            // Since panel_2 was not visible on the right, we don't open the left dock.
10617            assert!(!workspace.left_dock().read(cx).is_open());
10618            // And the right dock is unaffected in its displaying of panel_1
10619            assert!(workspace.right_dock().read(cx).is_open());
10620            assert_eq!(
10621                workspace
10622                    .right_dock()
10623                    .read(cx)
10624                    .visible_panel()
10625                    .unwrap()
10626                    .panel_id(),
10627                panel_1.panel_id(),
10628            );
10629        });
10630
10631        // Move panel_1 back to the left
10632        panel_1.update_in(cx, |panel_1, window, cx| {
10633            panel_1.set_position(DockPosition::Left, window, cx)
10634        });
10635
10636        workspace.update_in(cx, |workspace, window, cx| {
10637            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10638            let left_dock = workspace.left_dock();
10639            assert!(left_dock.read(cx).is_open());
10640            assert_eq!(
10641                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10642                panel_1.panel_id()
10643            );
10644            assert_eq!(
10645                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10646                px(1337.)
10647            );
10648            // And the right dock should be closed as it no longer has any panels.
10649            assert!(!workspace.right_dock().read(cx).is_open());
10650
10651            // Now we move panel_1 to the bottom
10652            panel_1.set_position(DockPosition::Bottom, window, cx);
10653        });
10654
10655        workspace.update_in(cx, |workspace, window, cx| {
10656            // Since panel_1 was visible on the left, we close the left dock.
10657            assert!(!workspace.left_dock().read(cx).is_open());
10658            // The bottom dock is sized based on the panel's default size,
10659            // since the panel orientation changed from vertical to horizontal.
10660            let bottom_dock = workspace.bottom_dock();
10661            assert_eq!(
10662                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10663                panel_1.size(window, cx),
10664            );
10665            // Close bottom dock and move panel_1 back to the left.
10666            bottom_dock.update(cx, |bottom_dock, cx| {
10667                bottom_dock.set_open(false, window, cx)
10668            });
10669            panel_1.set_position(DockPosition::Left, window, cx);
10670        });
10671
10672        // Emit activated event on panel 1
10673        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10674
10675        // Now the left dock is open and panel_1 is active and focused.
10676        workspace.update_in(cx, |workspace, window, cx| {
10677            let left_dock = workspace.left_dock();
10678            assert!(left_dock.read(cx).is_open());
10679            assert_eq!(
10680                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10681                panel_1.panel_id(),
10682            );
10683            assert!(panel_1.focus_handle(cx).is_focused(window));
10684        });
10685
10686        // Emit closed event on panel 2, which is not active
10687        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10688
10689        // Wo don't close the left dock, because panel_2 wasn't the active panel
10690        workspace.update(cx, |workspace, cx| {
10691            let left_dock = workspace.left_dock();
10692            assert!(left_dock.read(cx).is_open());
10693            assert_eq!(
10694                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10695                panel_1.panel_id(),
10696            );
10697        });
10698
10699        // Emitting a ZoomIn event shows the panel as zoomed.
10700        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10701        workspace.read_with(cx, |workspace, _| {
10702            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10703            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10704        });
10705
10706        // Move panel to another dock while it is zoomed
10707        panel_1.update_in(cx, |panel, window, cx| {
10708            panel.set_position(DockPosition::Right, window, cx)
10709        });
10710        workspace.read_with(cx, |workspace, _| {
10711            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10712
10713            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10714        });
10715
10716        // This is a helper for getting a:
10717        // - valid focus on an element,
10718        // - that isn't a part of the panes and panels system of the Workspace,
10719        // - and doesn't trigger the 'on_focus_lost' API.
10720        let focus_other_view = {
10721            let workspace = workspace.clone();
10722            move |cx: &mut VisualTestContext| {
10723                workspace.update_in(cx, |workspace, window, cx| {
10724                    if workspace.active_modal::<TestModal>(cx).is_some() {
10725                        workspace.toggle_modal(window, cx, TestModal::new);
10726                        workspace.toggle_modal(window, cx, TestModal::new);
10727                    } else {
10728                        workspace.toggle_modal(window, cx, TestModal::new);
10729                    }
10730                })
10731            }
10732        };
10733
10734        // If focus is transferred to another view that's not a panel or another pane, we still show
10735        // the panel as zoomed.
10736        focus_other_view(cx);
10737        workspace.read_with(cx, |workspace, _| {
10738            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10739            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10740        });
10741
10742        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10743        workspace.update_in(cx, |_workspace, window, cx| {
10744            cx.focus_self(window);
10745        });
10746        workspace.read_with(cx, |workspace, _| {
10747            assert_eq!(workspace.zoomed, None);
10748            assert_eq!(workspace.zoomed_position, None);
10749        });
10750
10751        // If focus is transferred again to another view that's not a panel or a pane, we won't
10752        // show the panel as zoomed because it wasn't zoomed before.
10753        focus_other_view(cx);
10754        workspace.read_with(cx, |workspace, _| {
10755            assert_eq!(workspace.zoomed, None);
10756            assert_eq!(workspace.zoomed_position, None);
10757        });
10758
10759        // When the panel is activated, it is zoomed again.
10760        cx.dispatch_action(ToggleRightDock);
10761        workspace.read_with(cx, |workspace, _| {
10762            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10763            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10764        });
10765
10766        // Emitting a ZoomOut event unzooms the panel.
10767        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10768        workspace.read_with(cx, |workspace, _| {
10769            assert_eq!(workspace.zoomed, None);
10770            assert_eq!(workspace.zoomed_position, None);
10771        });
10772
10773        // Emit closed event on panel 1, which is active
10774        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10775
10776        // Now the left dock is closed, because panel_1 was the active panel
10777        workspace.update(cx, |workspace, cx| {
10778            let right_dock = workspace.right_dock();
10779            assert!(!right_dock.read(cx).is_open());
10780        });
10781    }
10782
10783    #[gpui::test]
10784    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10785        init_test(cx);
10786
10787        let fs = FakeFs::new(cx.background_executor.clone());
10788        let project = Project::test(fs, [], cx).await;
10789        let (workspace, cx) =
10790            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10791        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10792
10793        let dirty_regular_buffer = cx.new(|cx| {
10794            TestItem::new(cx)
10795                .with_dirty(true)
10796                .with_label("1.txt")
10797                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10798        });
10799        let dirty_regular_buffer_2 = cx.new(|cx| {
10800            TestItem::new(cx)
10801                .with_dirty(true)
10802                .with_label("2.txt")
10803                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10804        });
10805        let dirty_multi_buffer_with_both = cx.new(|cx| {
10806            TestItem::new(cx)
10807                .with_dirty(true)
10808                .with_buffer_kind(ItemBufferKind::Multibuffer)
10809                .with_label("Fake Project Search")
10810                .with_project_items(&[
10811                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10812                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10813                ])
10814        });
10815        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10816        workspace.update_in(cx, |workspace, window, cx| {
10817            workspace.add_item(
10818                pane.clone(),
10819                Box::new(dirty_regular_buffer.clone()),
10820                None,
10821                false,
10822                false,
10823                window,
10824                cx,
10825            );
10826            workspace.add_item(
10827                pane.clone(),
10828                Box::new(dirty_regular_buffer_2.clone()),
10829                None,
10830                false,
10831                false,
10832                window,
10833                cx,
10834            );
10835            workspace.add_item(
10836                pane.clone(),
10837                Box::new(dirty_multi_buffer_with_both.clone()),
10838                None,
10839                false,
10840                false,
10841                window,
10842                cx,
10843            );
10844        });
10845
10846        pane.update_in(cx, |pane, window, cx| {
10847            pane.activate_item(2, true, true, window, cx);
10848            assert_eq!(
10849                pane.active_item().unwrap().item_id(),
10850                multi_buffer_with_both_files_id,
10851                "Should select the multi buffer in the pane"
10852            );
10853        });
10854        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10855            pane.close_other_items(
10856                &CloseOtherItems {
10857                    save_intent: Some(SaveIntent::Save),
10858                    close_pinned: true,
10859                },
10860                None,
10861                window,
10862                cx,
10863            )
10864        });
10865        cx.background_executor.run_until_parked();
10866        assert!(!cx.has_pending_prompt());
10867        close_all_but_multi_buffer_task
10868            .await
10869            .expect("Closing all buffers but the multi buffer failed");
10870        pane.update(cx, |pane, cx| {
10871            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10872            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10873            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10874            assert_eq!(pane.items_len(), 1);
10875            assert_eq!(
10876                pane.active_item().unwrap().item_id(),
10877                multi_buffer_with_both_files_id,
10878                "Should have only the multi buffer left in the pane"
10879            );
10880            assert!(
10881                dirty_multi_buffer_with_both.read(cx).is_dirty,
10882                "The multi buffer containing the unsaved buffer should still be dirty"
10883            );
10884        });
10885
10886        dirty_regular_buffer.update(cx, |buffer, cx| {
10887            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10888        });
10889
10890        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10891            pane.close_active_item(
10892                &CloseActiveItem {
10893                    save_intent: Some(SaveIntent::Close),
10894                    close_pinned: false,
10895                },
10896                window,
10897                cx,
10898            )
10899        });
10900        cx.background_executor.run_until_parked();
10901        assert!(
10902            cx.has_pending_prompt(),
10903            "Dirty multi buffer should prompt a save dialog"
10904        );
10905        cx.simulate_prompt_answer("Save");
10906        cx.background_executor.run_until_parked();
10907        close_multi_buffer_task
10908            .await
10909            .expect("Closing the multi buffer failed");
10910        pane.update(cx, |pane, cx| {
10911            assert_eq!(
10912                dirty_multi_buffer_with_both.read(cx).save_count,
10913                1,
10914                "Multi buffer item should get be saved"
10915            );
10916            // Test impl does not save inner items, so we do not assert them
10917            assert_eq!(
10918                pane.items_len(),
10919                0,
10920                "No more items should be left in the pane"
10921            );
10922            assert!(pane.active_item().is_none());
10923        });
10924    }
10925
10926    #[gpui::test]
10927    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10928        cx: &mut TestAppContext,
10929    ) {
10930        init_test(cx);
10931
10932        let fs = FakeFs::new(cx.background_executor.clone());
10933        let project = Project::test(fs, [], cx).await;
10934        let (workspace, cx) =
10935            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10936        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10937
10938        let dirty_regular_buffer = cx.new(|cx| {
10939            TestItem::new(cx)
10940                .with_dirty(true)
10941                .with_label("1.txt")
10942                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10943        });
10944        let dirty_regular_buffer_2 = cx.new(|cx| {
10945            TestItem::new(cx)
10946                .with_dirty(true)
10947                .with_label("2.txt")
10948                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10949        });
10950        let clear_regular_buffer = cx.new(|cx| {
10951            TestItem::new(cx)
10952                .with_label("3.txt")
10953                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10954        });
10955
10956        let dirty_multi_buffer_with_both = cx.new(|cx| {
10957            TestItem::new(cx)
10958                .with_dirty(true)
10959                .with_buffer_kind(ItemBufferKind::Multibuffer)
10960                .with_label("Fake Project Search")
10961                .with_project_items(&[
10962                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10963                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10964                    clear_regular_buffer.read(cx).project_items[0].clone(),
10965                ])
10966        });
10967        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10968        workspace.update_in(cx, |workspace, window, cx| {
10969            workspace.add_item(
10970                pane.clone(),
10971                Box::new(dirty_regular_buffer.clone()),
10972                None,
10973                false,
10974                false,
10975                window,
10976                cx,
10977            );
10978            workspace.add_item(
10979                pane.clone(),
10980                Box::new(dirty_multi_buffer_with_both.clone()),
10981                None,
10982                false,
10983                false,
10984                window,
10985                cx,
10986            );
10987        });
10988
10989        pane.update_in(cx, |pane, window, cx| {
10990            pane.activate_item(1, true, true, window, cx);
10991            assert_eq!(
10992                pane.active_item().unwrap().item_id(),
10993                multi_buffer_with_both_files_id,
10994                "Should select the multi buffer in the pane"
10995            );
10996        });
10997        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10998            pane.close_active_item(
10999                &CloseActiveItem {
11000                    save_intent: None,
11001                    close_pinned: false,
11002                },
11003                window,
11004                cx,
11005            )
11006        });
11007        cx.background_executor.run_until_parked();
11008        assert!(
11009            cx.has_pending_prompt(),
11010            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
11011        );
11012    }
11013
11014    /// Tests that when `close_on_file_delete` is enabled, files are automatically
11015    /// closed when they are deleted from disk.
11016    #[gpui::test]
11017    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
11018        init_test(cx);
11019
11020        // Enable the close_on_disk_deletion setting
11021        cx.update_global(|store: &mut SettingsStore, cx| {
11022            store.update_user_settings(cx, |settings| {
11023                settings.workspace.close_on_file_delete = Some(true);
11024            });
11025        });
11026
11027        let fs = FakeFs::new(cx.background_executor.clone());
11028        let project = Project::test(fs, [], cx).await;
11029        let (workspace, cx) =
11030            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11031        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11032
11033        // Create a test item that simulates a file
11034        let item = cx.new(|cx| {
11035            TestItem::new(cx)
11036                .with_label("test.txt")
11037                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11038        });
11039
11040        // Add item to workspace
11041        workspace.update_in(cx, |workspace, window, cx| {
11042            workspace.add_item(
11043                pane.clone(),
11044                Box::new(item.clone()),
11045                None,
11046                false,
11047                false,
11048                window,
11049                cx,
11050            );
11051        });
11052
11053        // Verify the item is in the pane
11054        pane.read_with(cx, |pane, _| {
11055            assert_eq!(pane.items().count(), 1);
11056        });
11057
11058        // Simulate file deletion by setting the item's deleted state
11059        item.update(cx, |item, _| {
11060            item.set_has_deleted_file(true);
11061        });
11062
11063        // Emit UpdateTab event to trigger the close behavior
11064        cx.run_until_parked();
11065        item.update(cx, |_, cx| {
11066            cx.emit(ItemEvent::UpdateTab);
11067        });
11068
11069        // Allow the close operation to complete
11070        cx.run_until_parked();
11071
11072        // Verify the item was automatically closed
11073        pane.read_with(cx, |pane, _| {
11074            assert_eq!(
11075                pane.items().count(),
11076                0,
11077                "Item should be automatically closed when file is deleted"
11078            );
11079        });
11080    }
11081
11082    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11083    /// open with a strikethrough when they are deleted from disk.
11084    #[gpui::test]
11085    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11086        init_test(cx);
11087
11088        // Ensure close_on_disk_deletion is disabled (default)
11089        cx.update_global(|store: &mut SettingsStore, cx| {
11090            store.update_user_settings(cx, |settings| {
11091                settings.workspace.close_on_file_delete = Some(false);
11092            });
11093        });
11094
11095        let fs = FakeFs::new(cx.background_executor.clone());
11096        let project = Project::test(fs, [], cx).await;
11097        let (workspace, cx) =
11098            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11099        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11100
11101        // Create a test item that simulates a file
11102        let item = cx.new(|cx| {
11103            TestItem::new(cx)
11104                .with_label("test.txt")
11105                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11106        });
11107
11108        // Add item to workspace
11109        workspace.update_in(cx, |workspace, window, cx| {
11110            workspace.add_item(
11111                pane.clone(),
11112                Box::new(item.clone()),
11113                None,
11114                false,
11115                false,
11116                window,
11117                cx,
11118            );
11119        });
11120
11121        // Verify the item is in the pane
11122        pane.read_with(cx, |pane, _| {
11123            assert_eq!(pane.items().count(), 1);
11124        });
11125
11126        // Simulate file deletion
11127        item.update(cx, |item, _| {
11128            item.set_has_deleted_file(true);
11129        });
11130
11131        // Emit UpdateTab event
11132        cx.run_until_parked();
11133        item.update(cx, |_, cx| {
11134            cx.emit(ItemEvent::UpdateTab);
11135        });
11136
11137        // Allow any potential close operation to complete
11138        cx.run_until_parked();
11139
11140        // Verify the item remains open (with strikethrough)
11141        pane.read_with(cx, |pane, _| {
11142            assert_eq!(
11143                pane.items().count(),
11144                1,
11145                "Item should remain open when close_on_disk_deletion is disabled"
11146            );
11147        });
11148
11149        // Verify the item shows as deleted
11150        item.read_with(cx, |item, _| {
11151            assert!(
11152                item.has_deleted_file,
11153                "Item should be marked as having deleted file"
11154            );
11155        });
11156    }
11157
11158    /// Tests that dirty files are not automatically closed when deleted from disk,
11159    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11160    /// unsaved changes without being prompted.
11161    #[gpui::test]
11162    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11163        init_test(cx);
11164
11165        // Enable the close_on_file_delete setting
11166        cx.update_global(|store: &mut SettingsStore, cx| {
11167            store.update_user_settings(cx, |settings| {
11168                settings.workspace.close_on_file_delete = Some(true);
11169            });
11170        });
11171
11172        let fs = FakeFs::new(cx.background_executor.clone());
11173        let project = Project::test(fs, [], cx).await;
11174        let (workspace, cx) =
11175            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11176        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11177
11178        // Create a dirty test item
11179        let item = cx.new(|cx| {
11180            TestItem::new(cx)
11181                .with_dirty(true)
11182                .with_label("test.txt")
11183                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11184        });
11185
11186        // Add item to workspace
11187        workspace.update_in(cx, |workspace, window, cx| {
11188            workspace.add_item(
11189                pane.clone(),
11190                Box::new(item.clone()),
11191                None,
11192                false,
11193                false,
11194                window,
11195                cx,
11196            );
11197        });
11198
11199        // Simulate file deletion
11200        item.update(cx, |item, _| {
11201            item.set_has_deleted_file(true);
11202        });
11203
11204        // Emit UpdateTab event to trigger the close behavior
11205        cx.run_until_parked();
11206        item.update(cx, |_, cx| {
11207            cx.emit(ItemEvent::UpdateTab);
11208        });
11209
11210        // Allow any potential close operation to complete
11211        cx.run_until_parked();
11212
11213        // Verify the item remains open (dirty files are not auto-closed)
11214        pane.read_with(cx, |pane, _| {
11215            assert_eq!(
11216                pane.items().count(),
11217                1,
11218                "Dirty items should not be automatically closed even when file is deleted"
11219            );
11220        });
11221
11222        // Verify the item is marked as deleted and still dirty
11223        item.read_with(cx, |item, _| {
11224            assert!(
11225                item.has_deleted_file,
11226                "Item should be marked as having deleted file"
11227            );
11228            assert!(item.is_dirty, "Item should still be dirty");
11229        });
11230    }
11231
11232    /// Tests that navigation history is cleaned up when files are auto-closed
11233    /// due to deletion from disk.
11234    #[gpui::test]
11235    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11236        init_test(cx);
11237
11238        // Enable the close_on_file_delete setting
11239        cx.update_global(|store: &mut SettingsStore, cx| {
11240            store.update_user_settings(cx, |settings| {
11241                settings.workspace.close_on_file_delete = Some(true);
11242            });
11243        });
11244
11245        let fs = FakeFs::new(cx.background_executor.clone());
11246        let project = Project::test(fs, [], cx).await;
11247        let (workspace, cx) =
11248            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11249        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11250
11251        // Create test items
11252        let item1 = cx.new(|cx| {
11253            TestItem::new(cx)
11254                .with_label("test1.txt")
11255                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11256        });
11257        let item1_id = item1.item_id();
11258
11259        let item2 = cx.new(|cx| {
11260            TestItem::new(cx)
11261                .with_label("test2.txt")
11262                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11263        });
11264
11265        // Add items to workspace
11266        workspace.update_in(cx, |workspace, window, cx| {
11267            workspace.add_item(
11268                pane.clone(),
11269                Box::new(item1.clone()),
11270                None,
11271                false,
11272                false,
11273                window,
11274                cx,
11275            );
11276            workspace.add_item(
11277                pane.clone(),
11278                Box::new(item2.clone()),
11279                None,
11280                false,
11281                false,
11282                window,
11283                cx,
11284            );
11285        });
11286
11287        // Activate item1 to ensure it gets navigation entries
11288        pane.update_in(cx, |pane, window, cx| {
11289            pane.activate_item(0, true, true, window, cx);
11290        });
11291
11292        // Switch to item2 and back to create navigation history
11293        pane.update_in(cx, |pane, window, cx| {
11294            pane.activate_item(1, true, true, window, cx);
11295        });
11296        cx.run_until_parked();
11297
11298        pane.update_in(cx, |pane, window, cx| {
11299            pane.activate_item(0, true, true, window, cx);
11300        });
11301        cx.run_until_parked();
11302
11303        // Simulate file deletion for item1
11304        item1.update(cx, |item, _| {
11305            item.set_has_deleted_file(true);
11306        });
11307
11308        // Emit UpdateTab event to trigger the close behavior
11309        item1.update(cx, |_, cx| {
11310            cx.emit(ItemEvent::UpdateTab);
11311        });
11312        cx.run_until_parked();
11313
11314        // Verify item1 was closed
11315        pane.read_with(cx, |pane, _| {
11316            assert_eq!(
11317                pane.items().count(),
11318                1,
11319                "Should have 1 item remaining after auto-close"
11320            );
11321        });
11322
11323        // Check navigation history after close
11324        let has_item = pane.read_with(cx, |pane, cx| {
11325            let mut has_item = false;
11326            pane.nav_history().for_each_entry(cx, |entry, _| {
11327                if entry.item.id() == item1_id {
11328                    has_item = true;
11329                }
11330            });
11331            has_item
11332        });
11333
11334        assert!(
11335            !has_item,
11336            "Navigation history should not contain closed item entries"
11337        );
11338    }
11339
11340    #[gpui::test]
11341    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11342        cx: &mut TestAppContext,
11343    ) {
11344        init_test(cx);
11345
11346        let fs = FakeFs::new(cx.background_executor.clone());
11347        let project = Project::test(fs, [], cx).await;
11348        let (workspace, cx) =
11349            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11350        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11351
11352        let dirty_regular_buffer = cx.new(|cx| {
11353            TestItem::new(cx)
11354                .with_dirty(true)
11355                .with_label("1.txt")
11356                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11357        });
11358        let dirty_regular_buffer_2 = cx.new(|cx| {
11359            TestItem::new(cx)
11360                .with_dirty(true)
11361                .with_label("2.txt")
11362                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11363        });
11364        let clear_regular_buffer = cx.new(|cx| {
11365            TestItem::new(cx)
11366                .with_label("3.txt")
11367                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11368        });
11369
11370        let dirty_multi_buffer = cx.new(|cx| {
11371            TestItem::new(cx)
11372                .with_dirty(true)
11373                .with_buffer_kind(ItemBufferKind::Multibuffer)
11374                .with_label("Fake Project Search")
11375                .with_project_items(&[
11376                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11377                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11378                    clear_regular_buffer.read(cx).project_items[0].clone(),
11379                ])
11380        });
11381        workspace.update_in(cx, |workspace, window, cx| {
11382            workspace.add_item(
11383                pane.clone(),
11384                Box::new(dirty_regular_buffer.clone()),
11385                None,
11386                false,
11387                false,
11388                window,
11389                cx,
11390            );
11391            workspace.add_item(
11392                pane.clone(),
11393                Box::new(dirty_regular_buffer_2.clone()),
11394                None,
11395                false,
11396                false,
11397                window,
11398                cx,
11399            );
11400            workspace.add_item(
11401                pane.clone(),
11402                Box::new(dirty_multi_buffer.clone()),
11403                None,
11404                false,
11405                false,
11406                window,
11407                cx,
11408            );
11409        });
11410
11411        pane.update_in(cx, |pane, window, cx| {
11412            pane.activate_item(2, true, true, window, cx);
11413            assert_eq!(
11414                pane.active_item().unwrap().item_id(),
11415                dirty_multi_buffer.item_id(),
11416                "Should select the multi buffer in the pane"
11417            );
11418        });
11419        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11420            pane.close_active_item(
11421                &CloseActiveItem {
11422                    save_intent: None,
11423                    close_pinned: false,
11424                },
11425                window,
11426                cx,
11427            )
11428        });
11429        cx.background_executor.run_until_parked();
11430        assert!(
11431            !cx.has_pending_prompt(),
11432            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11433        );
11434        close_multi_buffer_task
11435            .await
11436            .expect("Closing multi buffer failed");
11437        pane.update(cx, |pane, cx| {
11438            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11439            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11440            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11441            assert_eq!(
11442                pane.items()
11443                    .map(|item| item.item_id())
11444                    .sorted()
11445                    .collect::<Vec<_>>(),
11446                vec![
11447                    dirty_regular_buffer.item_id(),
11448                    dirty_regular_buffer_2.item_id(),
11449                ],
11450                "Should have no multi buffer left in the pane"
11451            );
11452            assert!(dirty_regular_buffer.read(cx).is_dirty);
11453            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11454        });
11455    }
11456
11457    #[gpui::test]
11458    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11459        init_test(cx);
11460        let fs = FakeFs::new(cx.executor());
11461        let project = Project::test(fs, [], cx).await;
11462        let (workspace, cx) =
11463            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11464
11465        // Add a new panel to the right dock, opening the dock and setting the
11466        // focus to the new panel.
11467        let panel = workspace.update_in(cx, |workspace, window, cx| {
11468            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11469            workspace.add_panel(panel.clone(), window, cx);
11470
11471            workspace
11472                .right_dock()
11473                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11474
11475            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11476
11477            panel
11478        });
11479
11480        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11481        // panel to the next valid position which, in this case, is the left
11482        // dock.
11483        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11484        workspace.update(cx, |workspace, cx| {
11485            assert!(workspace.left_dock().read(cx).is_open());
11486            assert_eq!(panel.read(cx).position, DockPosition::Left);
11487        });
11488
11489        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11490        // panel to the next valid position which, in this case, is the bottom
11491        // dock.
11492        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11493        workspace.update(cx, |workspace, cx| {
11494            assert!(workspace.bottom_dock().read(cx).is_open());
11495            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11496        });
11497
11498        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11499        // around moving the panel to its initial position, the right dock.
11500        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11501        workspace.update(cx, |workspace, cx| {
11502            assert!(workspace.right_dock().read(cx).is_open());
11503            assert_eq!(panel.read(cx).position, DockPosition::Right);
11504        });
11505
11506        // Remove focus from the panel, ensuring that, if the panel is not
11507        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11508        // the panel's position, so the panel is still in the right dock.
11509        workspace.update_in(cx, |workspace, window, cx| {
11510            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11511        });
11512
11513        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11514        workspace.update(cx, |workspace, cx| {
11515            assert!(workspace.right_dock().read(cx).is_open());
11516            assert_eq!(panel.read(cx).position, DockPosition::Right);
11517        });
11518    }
11519
11520    #[gpui::test]
11521    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11522        init_test(cx);
11523
11524        let fs = FakeFs::new(cx.executor());
11525        let project = Project::test(fs, [], cx).await;
11526        let (workspace, cx) =
11527            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11528
11529        let item_1 = cx.new(|cx| {
11530            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11531        });
11532        workspace.update_in(cx, |workspace, window, cx| {
11533            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11534            workspace.move_item_to_pane_in_direction(
11535                &MoveItemToPaneInDirection {
11536                    direction: SplitDirection::Right,
11537                    focus: true,
11538                    clone: false,
11539                },
11540                window,
11541                cx,
11542            );
11543            workspace.move_item_to_pane_at_index(
11544                &MoveItemToPane {
11545                    destination: 3,
11546                    focus: true,
11547                    clone: false,
11548                },
11549                window,
11550                cx,
11551            );
11552
11553            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11554            assert_eq!(
11555                pane_items_paths(&workspace.active_pane, cx),
11556                vec!["first.txt".to_string()],
11557                "Single item was not moved anywhere"
11558            );
11559        });
11560
11561        let item_2 = cx.new(|cx| {
11562            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11563        });
11564        workspace.update_in(cx, |workspace, window, cx| {
11565            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11566            assert_eq!(
11567                pane_items_paths(&workspace.panes[0], cx),
11568                vec!["first.txt".to_string(), "second.txt".to_string()],
11569            );
11570            workspace.move_item_to_pane_in_direction(
11571                &MoveItemToPaneInDirection {
11572                    direction: SplitDirection::Right,
11573                    focus: true,
11574                    clone: false,
11575                },
11576                window,
11577                cx,
11578            );
11579
11580            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11581            assert_eq!(
11582                pane_items_paths(&workspace.panes[0], cx),
11583                vec!["first.txt".to_string()],
11584                "After moving, one item should be left in the original pane"
11585            );
11586            assert_eq!(
11587                pane_items_paths(&workspace.panes[1], cx),
11588                vec!["second.txt".to_string()],
11589                "New item should have been moved to the new pane"
11590            );
11591        });
11592
11593        let item_3 = cx.new(|cx| {
11594            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11595        });
11596        workspace.update_in(cx, |workspace, window, cx| {
11597            let original_pane = workspace.panes[0].clone();
11598            workspace.set_active_pane(&original_pane, window, cx);
11599            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11600            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11601            assert_eq!(
11602                pane_items_paths(&workspace.active_pane, cx),
11603                vec!["first.txt".to_string(), "third.txt".to_string()],
11604                "New pane should be ready to move one item out"
11605            );
11606
11607            workspace.move_item_to_pane_at_index(
11608                &MoveItemToPane {
11609                    destination: 3,
11610                    focus: true,
11611                    clone: false,
11612                },
11613                window,
11614                cx,
11615            );
11616            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11617            assert_eq!(
11618                pane_items_paths(&workspace.active_pane, cx),
11619                vec!["first.txt".to_string()],
11620                "After moving, one item should be left in the original pane"
11621            );
11622            assert_eq!(
11623                pane_items_paths(&workspace.panes[1], cx),
11624                vec!["second.txt".to_string()],
11625                "Previously created pane should be unchanged"
11626            );
11627            assert_eq!(
11628                pane_items_paths(&workspace.panes[2], cx),
11629                vec!["third.txt".to_string()],
11630                "New item should have been moved to the new pane"
11631            );
11632        });
11633    }
11634
11635    #[gpui::test]
11636    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11637        init_test(cx);
11638
11639        let fs = FakeFs::new(cx.executor());
11640        let project = Project::test(fs, [], cx).await;
11641        let (workspace, cx) =
11642            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11643
11644        let item_1 = cx.new(|cx| {
11645            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11646        });
11647        workspace.update_in(cx, |workspace, window, cx| {
11648            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11649            workspace.move_item_to_pane_in_direction(
11650                &MoveItemToPaneInDirection {
11651                    direction: SplitDirection::Right,
11652                    focus: true,
11653                    clone: true,
11654                },
11655                window,
11656                cx,
11657            );
11658        });
11659        cx.run_until_parked();
11660        workspace.update_in(cx, |workspace, window, cx| {
11661            workspace.move_item_to_pane_at_index(
11662                &MoveItemToPane {
11663                    destination: 3,
11664                    focus: true,
11665                    clone: true,
11666                },
11667                window,
11668                cx,
11669            );
11670        });
11671        cx.run_until_parked();
11672
11673        workspace.update(cx, |workspace, cx| {
11674            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11675            for pane in workspace.panes() {
11676                assert_eq!(
11677                    pane_items_paths(pane, cx),
11678                    vec!["first.txt".to_string()],
11679                    "Single item exists in all panes"
11680                );
11681            }
11682        });
11683
11684        // verify that the active pane has been updated after waiting for the
11685        // pane focus event to fire and resolve
11686        workspace.read_with(cx, |workspace, _app| {
11687            assert_eq!(
11688                workspace.active_pane(),
11689                &workspace.panes[2],
11690                "The third pane should be the active one: {:?}",
11691                workspace.panes
11692            );
11693        })
11694    }
11695
11696    mod register_project_item_tests {
11697
11698        use super::*;
11699
11700        // View
11701        struct TestPngItemView {
11702            focus_handle: FocusHandle,
11703        }
11704        // Model
11705        struct TestPngItem {}
11706
11707        impl project::ProjectItem for TestPngItem {
11708            fn try_open(
11709                _project: &Entity<Project>,
11710                path: &ProjectPath,
11711                cx: &mut App,
11712            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11713                if path.path.extension().unwrap() == "png" {
11714                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
11715                } else {
11716                    None
11717                }
11718            }
11719
11720            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11721                None
11722            }
11723
11724            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11725                None
11726            }
11727
11728            fn is_dirty(&self) -> bool {
11729                false
11730            }
11731        }
11732
11733        impl Item for TestPngItemView {
11734            type Event = ();
11735            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11736                "".into()
11737            }
11738        }
11739        impl EventEmitter<()> for TestPngItemView {}
11740        impl Focusable for TestPngItemView {
11741            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11742                self.focus_handle.clone()
11743            }
11744        }
11745
11746        impl Render for TestPngItemView {
11747            fn render(
11748                &mut self,
11749                _window: &mut Window,
11750                _cx: &mut Context<Self>,
11751            ) -> impl IntoElement {
11752                Empty
11753            }
11754        }
11755
11756        impl ProjectItem for TestPngItemView {
11757            type Item = TestPngItem;
11758
11759            fn for_project_item(
11760                _project: Entity<Project>,
11761                _pane: Option<&Pane>,
11762                _item: Entity<Self::Item>,
11763                _: &mut Window,
11764                cx: &mut Context<Self>,
11765            ) -> Self
11766            where
11767                Self: Sized,
11768            {
11769                Self {
11770                    focus_handle: cx.focus_handle(),
11771                }
11772            }
11773        }
11774
11775        // View
11776        struct TestIpynbItemView {
11777            focus_handle: FocusHandle,
11778        }
11779        // Model
11780        struct TestIpynbItem {}
11781
11782        impl project::ProjectItem for TestIpynbItem {
11783            fn try_open(
11784                _project: &Entity<Project>,
11785                path: &ProjectPath,
11786                cx: &mut App,
11787            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11788                if path.path.extension().unwrap() == "ipynb" {
11789                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
11790                } else {
11791                    None
11792                }
11793            }
11794
11795            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11796                None
11797            }
11798
11799            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11800                None
11801            }
11802
11803            fn is_dirty(&self) -> bool {
11804                false
11805            }
11806        }
11807
11808        impl Item for TestIpynbItemView {
11809            type Event = ();
11810            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11811                "".into()
11812            }
11813        }
11814        impl EventEmitter<()> for TestIpynbItemView {}
11815        impl Focusable for TestIpynbItemView {
11816            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11817                self.focus_handle.clone()
11818            }
11819        }
11820
11821        impl Render for TestIpynbItemView {
11822            fn render(
11823                &mut self,
11824                _window: &mut Window,
11825                _cx: &mut Context<Self>,
11826            ) -> impl IntoElement {
11827                Empty
11828            }
11829        }
11830
11831        impl ProjectItem for TestIpynbItemView {
11832            type Item = TestIpynbItem;
11833
11834            fn for_project_item(
11835                _project: Entity<Project>,
11836                _pane: Option<&Pane>,
11837                _item: Entity<Self::Item>,
11838                _: &mut Window,
11839                cx: &mut Context<Self>,
11840            ) -> Self
11841            where
11842                Self: Sized,
11843            {
11844                Self {
11845                    focus_handle: cx.focus_handle(),
11846                }
11847            }
11848        }
11849
11850        struct TestAlternatePngItemView {
11851            focus_handle: FocusHandle,
11852        }
11853
11854        impl Item for TestAlternatePngItemView {
11855            type Event = ();
11856            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11857                "".into()
11858            }
11859        }
11860
11861        impl EventEmitter<()> for TestAlternatePngItemView {}
11862        impl Focusable for TestAlternatePngItemView {
11863            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11864                self.focus_handle.clone()
11865            }
11866        }
11867
11868        impl Render for TestAlternatePngItemView {
11869            fn render(
11870                &mut self,
11871                _window: &mut Window,
11872                _cx: &mut Context<Self>,
11873            ) -> impl IntoElement {
11874                Empty
11875            }
11876        }
11877
11878        impl ProjectItem for TestAlternatePngItemView {
11879            type Item = TestPngItem;
11880
11881            fn for_project_item(
11882                _project: Entity<Project>,
11883                _pane: Option<&Pane>,
11884                _item: Entity<Self::Item>,
11885                _: &mut Window,
11886                cx: &mut Context<Self>,
11887            ) -> Self
11888            where
11889                Self: Sized,
11890            {
11891                Self {
11892                    focus_handle: cx.focus_handle(),
11893                }
11894            }
11895        }
11896
11897        #[gpui::test]
11898        async fn test_register_project_item(cx: &mut TestAppContext) {
11899            init_test(cx);
11900
11901            cx.update(|cx| {
11902                register_project_item::<TestPngItemView>(cx);
11903                register_project_item::<TestIpynbItemView>(cx);
11904            });
11905
11906            let fs = FakeFs::new(cx.executor());
11907            fs.insert_tree(
11908                "/root1",
11909                json!({
11910                    "one.png": "BINARYDATAHERE",
11911                    "two.ipynb": "{ totally a notebook }",
11912                    "three.txt": "editing text, sure why not?"
11913                }),
11914            )
11915            .await;
11916
11917            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11918            let (workspace, cx) =
11919                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11920
11921            let worktree_id = project.update(cx, |project, cx| {
11922                project.worktrees(cx).next().unwrap().read(cx).id()
11923            });
11924
11925            let handle = workspace
11926                .update_in(cx, |workspace, window, cx| {
11927                    let project_path = (worktree_id, rel_path("one.png"));
11928                    workspace.open_path(project_path, None, true, window, cx)
11929                })
11930                .await
11931                .unwrap();
11932
11933            // Now we can check if the handle we got back errored or not
11934            assert_eq!(
11935                handle.to_any_view().entity_type(),
11936                TypeId::of::<TestPngItemView>()
11937            );
11938
11939            let handle = workspace
11940                .update_in(cx, |workspace, window, cx| {
11941                    let project_path = (worktree_id, rel_path("two.ipynb"));
11942                    workspace.open_path(project_path, None, true, window, cx)
11943                })
11944                .await
11945                .unwrap();
11946
11947            assert_eq!(
11948                handle.to_any_view().entity_type(),
11949                TypeId::of::<TestIpynbItemView>()
11950            );
11951
11952            let handle = workspace
11953                .update_in(cx, |workspace, window, cx| {
11954                    let project_path = (worktree_id, rel_path("three.txt"));
11955                    workspace.open_path(project_path, None, true, window, cx)
11956                })
11957                .await;
11958            assert!(handle.is_err());
11959        }
11960
11961        #[gpui::test]
11962        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11963            init_test(cx);
11964
11965            cx.update(|cx| {
11966                register_project_item::<TestPngItemView>(cx);
11967                register_project_item::<TestAlternatePngItemView>(cx);
11968            });
11969
11970            let fs = FakeFs::new(cx.executor());
11971            fs.insert_tree(
11972                "/root1",
11973                json!({
11974                    "one.png": "BINARYDATAHERE",
11975                    "two.ipynb": "{ totally a notebook }",
11976                    "three.txt": "editing text, sure why not?"
11977                }),
11978            )
11979            .await;
11980            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11981            let (workspace, cx) =
11982                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11983            let worktree_id = project.update(cx, |project, cx| {
11984                project.worktrees(cx).next().unwrap().read(cx).id()
11985            });
11986
11987            let handle = workspace
11988                .update_in(cx, |workspace, window, cx| {
11989                    let project_path = (worktree_id, rel_path("one.png"));
11990                    workspace.open_path(project_path, None, true, window, cx)
11991                })
11992                .await
11993                .unwrap();
11994
11995            // This _must_ be the second item registered
11996            assert_eq!(
11997                handle.to_any_view().entity_type(),
11998                TypeId::of::<TestAlternatePngItemView>()
11999            );
12000
12001            let handle = workspace
12002                .update_in(cx, |workspace, window, cx| {
12003                    let project_path = (worktree_id, rel_path("three.txt"));
12004                    workspace.open_path(project_path, None, true, window, cx)
12005                })
12006                .await;
12007            assert!(handle.is_err());
12008        }
12009    }
12010
12011    #[gpui::test]
12012    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
12013        init_test(cx);
12014
12015        let fs = FakeFs::new(cx.executor());
12016        let project = Project::test(fs, [], cx).await;
12017        let (workspace, _cx) =
12018            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12019
12020        // Test with status bar shown (default)
12021        workspace.read_with(cx, |workspace, cx| {
12022            let visible = workspace.status_bar_visible(cx);
12023            assert!(visible, "Status bar should be visible by default");
12024        });
12025
12026        // Test with status bar hidden
12027        cx.update_global(|store: &mut SettingsStore, cx| {
12028            store.update_user_settings(cx, |settings| {
12029                settings.status_bar.get_or_insert_default().show = Some(false);
12030            });
12031        });
12032
12033        workspace.read_with(cx, |workspace, cx| {
12034            let visible = workspace.status_bar_visible(cx);
12035            assert!(!visible, "Status bar should be hidden when show is false");
12036        });
12037
12038        // Test with status bar shown explicitly
12039        cx.update_global(|store: &mut SettingsStore, cx| {
12040            store.update_user_settings(cx, |settings| {
12041                settings.status_bar.get_or_insert_default().show = Some(true);
12042            });
12043        });
12044
12045        workspace.read_with(cx, |workspace, cx| {
12046            let visible = workspace.status_bar_visible(cx);
12047            assert!(visible, "Status bar should be visible when show is true");
12048        });
12049    }
12050
12051    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
12052        pane.read(cx)
12053            .items()
12054            .flat_map(|item| {
12055                item.project_paths(cx)
12056                    .into_iter()
12057                    .map(|path| path.path.display(PathStyle::local()).into_owned())
12058            })
12059            .collect()
12060    }
12061
12062    pub fn init_test(cx: &mut TestAppContext) {
12063        cx.update(|cx| {
12064            let settings_store = SettingsStore::test(cx);
12065            cx.set_global(settings_store);
12066            theme::init(theme::LoadThemes::JustBase, cx);
12067        });
12068    }
12069
12070    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
12071        let item = TestProjectItem::new(id, path, cx);
12072        item.update(cx, |item, _| {
12073            item.is_dirty = true;
12074        });
12075        item
12076    }
12077}