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 oauth_device_flow_modal;
    8pub mod pane;
    9pub mod pane_group;
   10mod path_list;
   11mod persistence;
   12pub mod searchable;
   13mod security_modal;
   14pub mod shared_screen;
   15mod status_bar;
   16pub mod tasks;
   17mod theme_preview;
   18mod toast_layer;
   19mod toolbar;
   20pub mod utility_pane;
   21pub mod welcome;
   22mod workspace_settings;
   23
   24pub use crate::notifications::NotificationFrame;
   25pub use dock::Panel;
   26pub use path_list::PathList;
   27pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   28
   29use anyhow::{Context as _, Result, anyhow};
   30use call::{ActiveCall, call_settings::CallSettings};
   31use client::{
   32    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   33    proto::{self, ErrorCode, PanelId, PeerId},
   34};
   35use collections::{HashMap, HashSet, hash_map};
   36use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   37use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   38use futures::{
   39    Future, FutureExt, StreamExt,
   40    channel::{
   41        mpsc::{self, UnboundedReceiver, UnboundedSender},
   42        oneshot,
   43    },
   44    future::{Shared, try_join_all},
   45};
   46use gpui::{
   47    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   48    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   49    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   50    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   51    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   52    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   53};
   54pub use history_manager::*;
   55pub use item::{
   56    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   57    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   58};
   59use itertools::Itertools;
   60use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   61pub use modal_layer::*;
   62use node_runtime::NodeRuntime;
   63use notifications::{
   64    DetachAndPromptErr, Notifications, dismiss_app_notification,
   65    simple_message_notification::MessageNotification,
   66};
   67pub use pane::*;
   68pub use pane_group::{
   69    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   70    SplitDirection,
   71};
   72use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   73pub use persistence::{
   74    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   75    model::{ItemId, SerializedWorkspaceLocation},
   76};
   77use postage::stream::Stream;
   78use project::{
   79    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   80    WorktreeSettings,
   81    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   82    project_settings::ProjectSettings,
   83    toolchain_store::ToolchainStoreEvent,
   84    trusted_worktrees::{TrustedWorktrees, TrustedWorktreesEvent},
   85};
   86use remote::{
   87    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   88    remote_client::ConnectionIdentifier,
   89};
   90use schemars::JsonSchema;
   91use serde::Deserialize;
   92use session::AppSession;
   93use settings::{
   94    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   95};
   96use shared_screen::SharedScreen;
   97use sqlez::{
   98    bindable::{Bind, Column, StaticColumnCount},
   99    statement::Statement,
  100};
  101use status_bar::StatusBar;
  102pub use status_bar::StatusItemView;
  103use std::{
  104    any::TypeId,
  105    borrow::Cow,
  106    cell::RefCell,
  107    cmp,
  108    collections::{VecDeque, hash_map::DefaultHasher},
  109    env,
  110    hash::{Hash, Hasher},
  111    path::{Path, PathBuf},
  112    process::ExitStatus,
  113    rc::Rc,
  114    sync::{
  115        Arc, LazyLock, Weak,
  116        atomic::{AtomicBool, AtomicUsize},
  117    },
  118    time::Duration,
  119};
  120use task::{DebugScenario, SpawnInTerminal, TaskContext};
  121use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  122pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  123pub use ui;
  124use ui::{Window, prelude::*};
  125use util::{
  126    ResultExt, TryFutureExt,
  127    paths::{PathStyle, SanitizedPath},
  128    rel_path::RelPath,
  129    serde::default_true,
  130};
  131use uuid::Uuid;
  132pub use workspace_settings::{
  133    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  134    WorkspaceSettings,
  135};
  136use zed_actions::{Spawn, feedback::FileBugReport};
  137
  138use crate::{
  139    item::ItemBufferKind,
  140    notifications::NotificationId,
  141    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  142};
  143use crate::{
  144    persistence::{
  145        SerializedAxis,
  146        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  147    },
  148    security_modal::SecurityModal,
  149    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  150};
  151
  152pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  153
  154static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  155    env::var("ZED_WINDOW_SIZE")
  156        .ok()
  157        .as_deref()
  158        .and_then(parse_pixel_size_env_var)
  159});
  160
  161static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  162    env::var("ZED_WINDOW_POSITION")
  163        .ok()
  164        .as_deref()
  165        .and_then(parse_pixel_position_env_var)
  166});
  167
  168pub trait TerminalProvider {
  169    fn spawn(
  170        &self,
  171        task: SpawnInTerminal,
  172        window: &mut Window,
  173        cx: &mut App,
  174    ) -> Task<Option<Result<ExitStatus>>>;
  175}
  176
  177pub trait DebuggerProvider {
  178    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  179    fn start_session(
  180        &self,
  181        definition: DebugScenario,
  182        task_context: TaskContext,
  183        active_buffer: Option<Entity<Buffer>>,
  184        worktree_id: Option<WorktreeId>,
  185        window: &mut Window,
  186        cx: &mut App,
  187    );
  188
  189    fn spawn_task_or_modal(
  190        &self,
  191        workspace: &mut Workspace,
  192        action: &Spawn,
  193        window: &mut Window,
  194        cx: &mut Context<Workspace>,
  195    );
  196
  197    fn task_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled(&self, cx: &mut App);
  199    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  200
  201    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  202}
  203
  204actions!(
  205    workspace,
  206    [
  207        /// Activates the next pane in the workspace.
  208        ActivateNextPane,
  209        /// Activates the previous pane in the workspace.
  210        ActivatePreviousPane,
  211        /// Switches to the next window.
  212        ActivateNextWindow,
  213        /// Switches to the previous window.
  214        ActivatePreviousWindow,
  215        /// Adds a folder to the current project.
  216        AddFolderToProject,
  217        /// Clears all notifications.
  218        ClearAllNotifications,
  219        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  220        ClearNavigationHistory,
  221        /// Closes the active dock.
  222        CloseActiveDock,
  223        /// Closes all docks.
  224        CloseAllDocks,
  225        /// Toggles all docks.
  226        ToggleAllDocks,
  227        /// Closes the current window.
  228        CloseWindow,
  229        /// Opens the feedback dialog.
  230        Feedback,
  231        /// Follows the next collaborator in the session.
  232        FollowNextCollaborator,
  233        /// Moves the focused panel to the next position.
  234        MoveFocusedPanelToNextPosition,
  235        /// Opens a new terminal in the center.
  236        NewCenterTerminal,
  237        /// Creates a new file.
  238        NewFile,
  239        /// Creates a new file in a vertical split.
  240        NewFileSplitVertical,
  241        /// Creates a new file in a horizontal split.
  242        NewFileSplitHorizontal,
  243        /// Opens a new search.
  244        NewSearch,
  245        /// Opens a new terminal.
  246        NewTerminal,
  247        /// Opens a new window.
  248        NewWindow,
  249        /// Opens a file or directory.
  250        Open,
  251        /// Opens multiple files.
  252        OpenFiles,
  253        /// Opens the current location in terminal.
  254        OpenInTerminal,
  255        /// Opens the component preview.
  256        OpenComponentPreview,
  257        /// Reloads the active item.
  258        ReloadActiveItem,
  259        /// Resets the active dock to its default size.
  260        ResetActiveDockSize,
  261        /// Resets all open docks to their default sizes.
  262        ResetOpenDocksSize,
  263        /// Reloads the application
  264        Reload,
  265        /// Saves the current file with a new name.
  266        SaveAs,
  267        /// Saves without formatting.
  268        SaveWithoutFormat,
  269        /// Shuts down all debug adapters.
  270        ShutdownDebugAdapters,
  271        /// Suppresses the current notification.
  272        SuppressNotification,
  273        /// Toggles the bottom dock.
  274        ToggleBottomDock,
  275        /// Toggles centered layout mode.
  276        ToggleCenteredLayout,
  277        /// Toggles edit prediction feature globally for all files.
  278        ToggleEditPrediction,
  279        /// Toggles the left dock.
  280        ToggleLeftDock,
  281        /// Toggles the right dock.
  282        ToggleRightDock,
  283        /// Toggles zoom on the active pane.
  284        ToggleZoom,
  285        /// Zooms in on the active pane.
  286        ZoomIn,
  287        /// Zooms out of the active pane.
  288        ZoomOut,
  289        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  290        /// If the modal is shown already, closes it without trusting any worktree.
  291        ToggleWorktreeSecurity,
  292        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  293        /// Requires restart to take effect on already opened projects.
  294        ClearTrustedWorktrees,
  295        /// Stops following a collaborator.
  296        Unfollow,
  297        /// Restores the banner.
  298        RestoreBanner,
  299        /// Toggles expansion of the selected item.
  300        ToggleExpandItem,
  301    ]
  302);
  303
  304/// Activates a specific pane by its index.
  305#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  306#[action(namespace = workspace)]
  307pub struct ActivatePane(pub usize);
  308
  309/// Moves an item to a specific pane by index.
  310#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  311#[action(namespace = workspace)]
  312#[serde(deny_unknown_fields)]
  313pub struct MoveItemToPane {
  314    #[serde(default = "default_1")]
  315    pub destination: usize,
  316    #[serde(default = "default_true")]
  317    pub focus: bool,
  318    #[serde(default)]
  319    pub clone: bool,
  320}
  321
  322fn default_1() -> usize {
  323    1
  324}
  325
  326/// Moves an item to a pane in the specified direction.
  327#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  328#[action(namespace = workspace)]
  329#[serde(deny_unknown_fields)]
  330pub struct MoveItemToPaneInDirection {
  331    #[serde(default = "default_right")]
  332    pub direction: SplitDirection,
  333    #[serde(default = "default_true")]
  334    pub focus: bool,
  335    #[serde(default)]
  336    pub clone: bool,
  337}
  338
  339/// Creates a new file in a split of the desired direction.
  340#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  341#[action(namespace = workspace)]
  342#[serde(deny_unknown_fields)]
  343pub struct NewFileSplit(pub SplitDirection);
  344
  345fn default_right() -> SplitDirection {
  346    SplitDirection::Right
  347}
  348
  349/// Saves all open files in the workspace.
  350#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  351#[action(namespace = workspace)]
  352#[serde(deny_unknown_fields)]
  353pub struct SaveAll {
  354    #[serde(default)]
  355    pub save_intent: Option<SaveIntent>,
  356}
  357
  358/// Saves the current file with the specified options.
  359#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  360#[action(namespace = workspace)]
  361#[serde(deny_unknown_fields)]
  362pub struct Save {
  363    #[serde(default)]
  364    pub save_intent: Option<SaveIntent>,
  365}
  366
  367/// Closes all items and panes in the workspace.
  368#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  369#[action(namespace = workspace)]
  370#[serde(deny_unknown_fields)]
  371pub struct CloseAllItemsAndPanes {
  372    #[serde(default)]
  373    pub save_intent: Option<SaveIntent>,
  374}
  375
  376/// Closes all inactive tabs and panes in the workspace.
  377#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  378#[action(namespace = workspace)]
  379#[serde(deny_unknown_fields)]
  380pub struct CloseInactiveTabsAndPanes {
  381    #[serde(default)]
  382    pub save_intent: Option<SaveIntent>,
  383}
  384
  385/// Sends a sequence of keystrokes to the active element.
  386#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  387#[action(namespace = workspace)]
  388pub struct SendKeystrokes(pub String);
  389
  390actions!(
  391    project_symbols,
  392    [
  393        /// Toggles the project symbols search.
  394        #[action(name = "Toggle")]
  395        ToggleProjectSymbols
  396    ]
  397);
  398
  399/// Toggles the file finder interface.
  400#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  401#[action(namespace = file_finder, name = "Toggle")]
  402#[serde(deny_unknown_fields)]
  403pub struct ToggleFileFinder {
  404    #[serde(default)]
  405    pub separate_history: bool,
  406}
  407
  408/// Increases size of a currently focused dock by a given amount of pixels.
  409#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  410#[action(namespace = workspace)]
  411#[serde(deny_unknown_fields)]
  412pub struct IncreaseActiveDockSize {
  413    /// For 0px parameter, uses UI font size value.
  414    #[serde(default)]
  415    pub px: u32,
  416}
  417
  418/// Decreases size of a currently focused dock by a given amount of pixels.
  419#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  420#[action(namespace = workspace)]
  421#[serde(deny_unknown_fields)]
  422pub struct DecreaseActiveDockSize {
  423    /// For 0px parameter, uses UI font size value.
  424    #[serde(default)]
  425    pub px: u32,
  426}
  427
  428/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  429#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  430#[action(namespace = workspace)]
  431#[serde(deny_unknown_fields)]
  432pub struct IncreaseOpenDocksSize {
  433    /// For 0px parameter, uses UI font size value.
  434    #[serde(default)]
  435    pub px: u32,
  436}
  437
  438/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  439#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  440#[action(namespace = workspace)]
  441#[serde(deny_unknown_fields)]
  442pub struct DecreaseOpenDocksSize {
  443    /// For 0px parameter, uses UI font size value.
  444    #[serde(default)]
  445    pub px: u32,
  446}
  447
  448actions!(
  449    workspace,
  450    [
  451        /// Activates the pane to the left.
  452        ActivatePaneLeft,
  453        /// Activates the pane to the right.
  454        ActivatePaneRight,
  455        /// Activates the pane above.
  456        ActivatePaneUp,
  457        /// Activates the pane below.
  458        ActivatePaneDown,
  459        /// Swaps the current pane with the one to the left.
  460        SwapPaneLeft,
  461        /// Swaps the current pane with the one to the right.
  462        SwapPaneRight,
  463        /// Swaps the current pane with the one above.
  464        SwapPaneUp,
  465        /// Swaps the current pane with the one below.
  466        SwapPaneDown,
  467        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  468        SwapPaneAdjacent,
  469        /// Move the current pane to be at the far left.
  470        MovePaneLeft,
  471        /// Move the current pane to be at the far right.
  472        MovePaneRight,
  473        /// Move the current pane to be at the very top.
  474        MovePaneUp,
  475        /// Move the current pane to be at the very bottom.
  476        MovePaneDown,
  477    ]
  478);
  479
  480#[derive(PartialEq, Eq, Debug)]
  481pub enum CloseIntent {
  482    /// Quit the program entirely.
  483    Quit,
  484    /// Close a window.
  485    CloseWindow,
  486    /// Replace the workspace in an existing window.
  487    ReplaceWindow,
  488}
  489
  490#[derive(Clone)]
  491pub struct Toast {
  492    id: NotificationId,
  493    msg: Cow<'static, str>,
  494    autohide: bool,
  495    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  496}
  497
  498impl Toast {
  499    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  500        Toast {
  501            id,
  502            msg: msg.into(),
  503            on_click: None,
  504            autohide: false,
  505        }
  506    }
  507
  508    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  509    where
  510        M: Into<Cow<'static, str>>,
  511        F: Fn(&mut Window, &mut App) + 'static,
  512    {
  513        self.on_click = Some((message.into(), Arc::new(on_click)));
  514        self
  515    }
  516
  517    pub fn autohide(mut self) -> Self {
  518        self.autohide = true;
  519        self
  520    }
  521}
  522
  523impl PartialEq for Toast {
  524    fn eq(&self, other: &Self) -> bool {
  525        self.id == other.id
  526            && self.msg == other.msg
  527            && self.on_click.is_some() == other.on_click.is_some()
  528    }
  529}
  530
  531/// Opens a new terminal with the specified working directory.
  532#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  533#[action(namespace = workspace)]
  534#[serde(deny_unknown_fields)]
  535pub struct OpenTerminal {
  536    pub working_directory: PathBuf,
  537}
  538
  539#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  540pub struct WorkspaceId(i64);
  541
  542impl StaticColumnCount for WorkspaceId {}
  543impl Bind for WorkspaceId {
  544    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  545        self.0.bind(statement, start_index)
  546    }
  547}
  548impl Column for WorkspaceId {
  549    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  550        i64::column(statement, start_index)
  551            .map(|(i, next_index)| (Self(i), next_index))
  552            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  553    }
  554}
  555impl From<WorkspaceId> for i64 {
  556    fn from(val: WorkspaceId) -> Self {
  557        val.0
  558    }
  559}
  560
  561fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  562    let paths = cx.prompt_for_paths(options);
  563    cx.spawn(
  564        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  565            Ok(Some(paths)) => {
  566                cx.update(|cx| {
  567                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  568                })
  569                .ok();
  570            }
  571            Ok(None) => {}
  572            Err(err) => {
  573                util::log_err(&err);
  574                cx.update(|cx| {
  575                    if let Some(workspace_window) = cx
  576                        .active_window()
  577                        .and_then(|window| window.downcast::<Workspace>())
  578                    {
  579                        workspace_window
  580                            .update(cx, |workspace, _, cx| {
  581                                workspace.show_portal_error(err.to_string(), cx);
  582                            })
  583                            .ok();
  584                    }
  585                })
  586                .ok();
  587            }
  588        },
  589    )
  590    .detach();
  591}
  592
  593pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  594    component::init();
  595    theme_preview::init(cx);
  596    toast_layer::init(cx);
  597    history_manager::init(cx);
  598
  599    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  600        .on_action(|_: &Reload, cx| reload(cx))
  601        .on_action({
  602            let app_state = Arc::downgrade(&app_state);
  603            move |_: &Open, cx: &mut App| {
  604                if let Some(app_state) = app_state.upgrade() {
  605                    prompt_and_open_paths(
  606                        app_state,
  607                        PathPromptOptions {
  608                            files: true,
  609                            directories: true,
  610                            multiple: true,
  611                            prompt: None,
  612                        },
  613                        cx,
  614                    );
  615                }
  616            }
  617        })
  618        .on_action({
  619            let app_state = Arc::downgrade(&app_state);
  620            move |_: &OpenFiles, cx: &mut App| {
  621                let directories = cx.can_select_mixed_files_and_dirs();
  622                if let Some(app_state) = app_state.upgrade() {
  623                    prompt_and_open_paths(
  624                        app_state,
  625                        PathPromptOptions {
  626                            files: true,
  627                            directories,
  628                            multiple: true,
  629                            prompt: None,
  630                        },
  631                        cx,
  632                    );
  633                }
  634            }
  635        });
  636}
  637
  638type BuildProjectItemFn =
  639    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  640
  641type BuildProjectItemForPathFn =
  642    fn(
  643        &Entity<Project>,
  644        &ProjectPath,
  645        &mut Window,
  646        &mut App,
  647    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  648
  649#[derive(Clone, Default)]
  650struct ProjectItemRegistry {
  651    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  652    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  653}
  654
  655impl ProjectItemRegistry {
  656    fn register<T: ProjectItem>(&mut self) {
  657        self.build_project_item_fns_by_type.insert(
  658            TypeId::of::<T::Item>(),
  659            |item, project, pane, window, cx| {
  660                let item = item.downcast().unwrap();
  661                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  662                    as Box<dyn ItemHandle>
  663            },
  664        );
  665        self.build_project_item_for_path_fns
  666            .push(|project, project_path, window, cx| {
  667                let project_path = project_path.clone();
  668                let is_file = project
  669                    .read(cx)
  670                    .entry_for_path(&project_path, cx)
  671                    .is_some_and(|entry| entry.is_file());
  672                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  673                let is_local = project.read(cx).is_local();
  674                let project_item =
  675                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  676                let project = project.clone();
  677                Some(window.spawn(cx, async move |cx| {
  678                    match project_item.await.with_context(|| {
  679                        format!(
  680                            "opening project path {:?}",
  681                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  682                        )
  683                    }) {
  684                        Ok(project_item) => {
  685                            let project_item = project_item;
  686                            let project_entry_id: Option<ProjectEntryId> =
  687                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  688                            let build_workspace_item = Box::new(
  689                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  690                                    Box::new(cx.new(|cx| {
  691                                        T::for_project_item(
  692                                            project,
  693                                            Some(pane),
  694                                            project_item,
  695                                            window,
  696                                            cx,
  697                                        )
  698                                    })) as Box<dyn ItemHandle>
  699                                },
  700                            ) as Box<_>;
  701                            Ok((project_entry_id, build_workspace_item))
  702                        }
  703                        Err(e) => {
  704                            log::warn!("Failed to open a project item: {e:#}");
  705                            if e.error_code() == ErrorCode::Internal {
  706                                if let Some(abs_path) =
  707                                    entry_abs_path.as_deref().filter(|_| is_file)
  708                                {
  709                                    if let Some(broken_project_item_view) =
  710                                        cx.update(|window, cx| {
  711                                            T::for_broken_project_item(
  712                                                abs_path, is_local, &e, window, cx,
  713                                            )
  714                                        })?
  715                                    {
  716                                        let build_workspace_item = Box::new(
  717                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  718                                                cx.new(|_| broken_project_item_view).boxed_clone()
  719                                            },
  720                                        )
  721                                        as Box<_>;
  722                                        return Ok((None, build_workspace_item));
  723                                    }
  724                                }
  725                            }
  726                            Err(e)
  727                        }
  728                    }
  729                }))
  730            });
  731    }
  732
  733    fn open_path(
  734        &self,
  735        project: &Entity<Project>,
  736        path: &ProjectPath,
  737        window: &mut Window,
  738        cx: &mut App,
  739    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  740        let Some(open_project_item) = self
  741            .build_project_item_for_path_fns
  742            .iter()
  743            .rev()
  744            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  745        else {
  746            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  747        };
  748        open_project_item
  749    }
  750
  751    fn build_item<T: project::ProjectItem>(
  752        &self,
  753        item: Entity<T>,
  754        project: Entity<Project>,
  755        pane: Option<&Pane>,
  756        window: &mut Window,
  757        cx: &mut App,
  758    ) -> Option<Box<dyn ItemHandle>> {
  759        let build = self
  760            .build_project_item_fns_by_type
  761            .get(&TypeId::of::<T>())?;
  762        Some(build(item.into_any(), project, pane, window, cx))
  763    }
  764}
  765
  766type WorkspaceItemBuilder =
  767    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  768
  769impl Global for ProjectItemRegistry {}
  770
  771/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  772/// items will get a chance to open the file, starting from the project item that
  773/// was added last.
  774pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  775    cx.default_global::<ProjectItemRegistry>().register::<I>();
  776}
  777
  778#[derive(Default)]
  779pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  780
  781struct FollowableViewDescriptor {
  782    from_state_proto: fn(
  783        Entity<Workspace>,
  784        ViewId,
  785        &mut Option<proto::view::Variant>,
  786        &mut Window,
  787        &mut App,
  788    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  789    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  790}
  791
  792impl Global for FollowableViewRegistry {}
  793
  794impl FollowableViewRegistry {
  795    pub fn register<I: FollowableItem>(cx: &mut App) {
  796        cx.default_global::<Self>().0.insert(
  797            TypeId::of::<I>(),
  798            FollowableViewDescriptor {
  799                from_state_proto: |workspace, id, state, window, cx| {
  800                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  801                        cx.foreground_executor()
  802                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  803                    })
  804                },
  805                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  806            },
  807        );
  808    }
  809
  810    pub fn from_state_proto(
  811        workspace: Entity<Workspace>,
  812        view_id: ViewId,
  813        mut state: Option<proto::view::Variant>,
  814        window: &mut Window,
  815        cx: &mut App,
  816    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  817        cx.update_default_global(|this: &mut Self, cx| {
  818            this.0.values().find_map(|descriptor| {
  819                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  820            })
  821        })
  822    }
  823
  824    pub fn to_followable_view(
  825        view: impl Into<AnyView>,
  826        cx: &App,
  827    ) -> Option<Box<dyn FollowableItemHandle>> {
  828        let this = cx.try_global::<Self>()?;
  829        let view = view.into();
  830        let descriptor = this.0.get(&view.entity_type())?;
  831        Some((descriptor.to_followable_view)(&view))
  832    }
  833}
  834
  835#[derive(Copy, Clone)]
  836struct SerializableItemDescriptor {
  837    deserialize: fn(
  838        Entity<Project>,
  839        WeakEntity<Workspace>,
  840        WorkspaceId,
  841        ItemId,
  842        &mut Window,
  843        &mut Context<Pane>,
  844    ) -> Task<Result<Box<dyn ItemHandle>>>,
  845    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  846    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  847}
  848
  849#[derive(Default)]
  850struct SerializableItemRegistry {
  851    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  852    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  853}
  854
  855impl Global for SerializableItemRegistry {}
  856
  857impl SerializableItemRegistry {
  858    fn deserialize(
  859        item_kind: &str,
  860        project: Entity<Project>,
  861        workspace: WeakEntity<Workspace>,
  862        workspace_id: WorkspaceId,
  863        item_item: ItemId,
  864        window: &mut Window,
  865        cx: &mut Context<Pane>,
  866    ) -> Task<Result<Box<dyn ItemHandle>>> {
  867        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  868            return Task::ready(Err(anyhow!(
  869                "cannot deserialize {}, descriptor not found",
  870                item_kind
  871            )));
  872        };
  873
  874        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  875    }
  876
  877    fn cleanup(
  878        item_kind: &str,
  879        workspace_id: WorkspaceId,
  880        loaded_items: Vec<ItemId>,
  881        window: &mut Window,
  882        cx: &mut App,
  883    ) -> Task<Result<()>> {
  884        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  885            return Task::ready(Err(anyhow!(
  886                "cannot cleanup {}, descriptor not found",
  887                item_kind
  888            )));
  889        };
  890
  891        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  892    }
  893
  894    fn view_to_serializable_item_handle(
  895        view: AnyView,
  896        cx: &App,
  897    ) -> Option<Box<dyn SerializableItemHandle>> {
  898        let this = cx.try_global::<Self>()?;
  899        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  900        Some((descriptor.view_to_serializable_item)(view))
  901    }
  902
  903    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  904        let this = cx.try_global::<Self>()?;
  905        this.descriptors_by_kind.get(item_kind).copied()
  906    }
  907}
  908
  909pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  910    let serialized_item_kind = I::serialized_item_kind();
  911
  912    let registry = cx.default_global::<SerializableItemRegistry>();
  913    let descriptor = SerializableItemDescriptor {
  914        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  915            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  916            cx.foreground_executor()
  917                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  918        },
  919        cleanup: |workspace_id, loaded_items, window, cx| {
  920            I::cleanup(workspace_id, loaded_items, window, cx)
  921        },
  922        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  923    };
  924    registry
  925        .descriptors_by_kind
  926        .insert(Arc::from(serialized_item_kind), descriptor);
  927    registry
  928        .descriptors_by_type
  929        .insert(TypeId::of::<I>(), descriptor);
  930}
  931
  932pub struct AppState {
  933    pub languages: Arc<LanguageRegistry>,
  934    pub client: Arc<Client>,
  935    pub user_store: Entity<UserStore>,
  936    pub workspace_store: Entity<WorkspaceStore>,
  937    pub fs: Arc<dyn fs::Fs>,
  938    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  939    pub node_runtime: NodeRuntime,
  940    pub session: Entity<AppSession>,
  941}
  942
  943struct GlobalAppState(Weak<AppState>);
  944
  945impl Global for GlobalAppState {}
  946
  947pub struct WorkspaceStore {
  948    workspaces: HashSet<WindowHandle<Workspace>>,
  949    client: Arc<Client>,
  950    _subscriptions: Vec<client::Subscription>,
  951}
  952
  953#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  954pub enum CollaboratorId {
  955    PeerId(PeerId),
  956    Agent,
  957}
  958
  959impl From<PeerId> for CollaboratorId {
  960    fn from(peer_id: PeerId) -> Self {
  961        CollaboratorId::PeerId(peer_id)
  962    }
  963}
  964
  965impl From<&PeerId> for CollaboratorId {
  966    fn from(peer_id: &PeerId) -> Self {
  967        CollaboratorId::PeerId(*peer_id)
  968    }
  969}
  970
  971#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  972struct Follower {
  973    project_id: Option<u64>,
  974    peer_id: PeerId,
  975}
  976
  977impl AppState {
  978    #[track_caller]
  979    pub fn global(cx: &App) -> Weak<Self> {
  980        cx.global::<GlobalAppState>().0.clone()
  981    }
  982    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  983        cx.try_global::<GlobalAppState>()
  984            .map(|state| state.0.clone())
  985    }
  986    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  987        cx.set_global(GlobalAppState(state));
  988    }
  989
  990    #[cfg(any(test, feature = "test-support"))]
  991    pub fn test(cx: &mut App) -> Arc<Self> {
  992        use fs::Fs;
  993        use node_runtime::NodeRuntime;
  994        use session::Session;
  995        use settings::SettingsStore;
  996
  997        if !cx.has_global::<SettingsStore>() {
  998            let settings_store = SettingsStore::test(cx);
  999            cx.set_global(settings_store);
 1000        }
 1001
 1002        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1003        <dyn Fs>::set_global(fs.clone(), cx);
 1004        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1005        let clock = Arc::new(clock::FakeSystemClock::new());
 1006        let http_client = http_client::FakeHttpClient::with_404_response();
 1007        let client = Client::new(clock, http_client, cx);
 1008        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1009        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1010        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1011
 1012        theme::init(theme::LoadThemes::JustBase, cx);
 1013        client::init(&client, cx);
 1014
 1015        Arc::new(Self {
 1016            client,
 1017            fs,
 1018            languages,
 1019            user_store,
 1020            workspace_store,
 1021            node_runtime: NodeRuntime::unavailable(),
 1022            build_window_options: |_, _| Default::default(),
 1023            session,
 1024        })
 1025    }
 1026}
 1027
 1028struct DelayedDebouncedEditAction {
 1029    task: Option<Task<()>>,
 1030    cancel_channel: Option<oneshot::Sender<()>>,
 1031}
 1032
 1033impl DelayedDebouncedEditAction {
 1034    fn new() -> DelayedDebouncedEditAction {
 1035        DelayedDebouncedEditAction {
 1036            task: None,
 1037            cancel_channel: None,
 1038        }
 1039    }
 1040
 1041    fn fire_new<F>(
 1042        &mut self,
 1043        delay: Duration,
 1044        window: &mut Window,
 1045        cx: &mut Context<Workspace>,
 1046        func: F,
 1047    ) where
 1048        F: 'static
 1049            + Send
 1050            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1051    {
 1052        if let Some(channel) = self.cancel_channel.take() {
 1053            _ = channel.send(());
 1054        }
 1055
 1056        let (sender, mut receiver) = oneshot::channel::<()>();
 1057        self.cancel_channel = Some(sender);
 1058
 1059        let previous_task = self.task.take();
 1060        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1061            let mut timer = cx.background_executor().timer(delay).fuse();
 1062            if let Some(previous_task) = previous_task {
 1063                previous_task.await;
 1064            }
 1065
 1066            futures::select_biased! {
 1067                _ = receiver => return,
 1068                    _ = timer => {}
 1069            }
 1070
 1071            if let Some(result) = workspace
 1072                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1073                .log_err()
 1074            {
 1075                result.await.log_err();
 1076            }
 1077        }));
 1078    }
 1079}
 1080
 1081pub enum Event {
 1082    PaneAdded(Entity<Pane>),
 1083    PaneRemoved,
 1084    ItemAdded {
 1085        item: Box<dyn ItemHandle>,
 1086    },
 1087    ActiveItemChanged,
 1088    ItemRemoved {
 1089        item_id: EntityId,
 1090    },
 1091    UserSavedItem {
 1092        pane: WeakEntity<Pane>,
 1093        item: Box<dyn WeakItemHandle>,
 1094        save_intent: SaveIntent,
 1095    },
 1096    ContactRequestedJoin(u64),
 1097    WorkspaceCreated(WeakEntity<Workspace>),
 1098    OpenBundledFile {
 1099        text: Cow<'static, str>,
 1100        title: &'static str,
 1101        language: &'static str,
 1102    },
 1103    ZoomChanged,
 1104    ModalOpened,
 1105}
 1106
 1107#[derive(Debug)]
 1108pub enum OpenVisible {
 1109    All,
 1110    None,
 1111    OnlyFiles,
 1112    OnlyDirectories,
 1113}
 1114
 1115enum WorkspaceLocation {
 1116    // Valid local paths or SSH project to serialize
 1117    Location(SerializedWorkspaceLocation, PathList),
 1118    // No valid location found hence clear session id
 1119    DetachFromSession,
 1120    // No valid location found to serialize
 1121    None,
 1122}
 1123
 1124type PromptForNewPath = Box<
 1125    dyn Fn(
 1126        &mut Workspace,
 1127        DirectoryLister,
 1128        &mut Window,
 1129        &mut Context<Workspace>,
 1130    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1131>;
 1132
 1133type PromptForOpenPath = Box<
 1134    dyn Fn(
 1135        &mut Workspace,
 1136        DirectoryLister,
 1137        &mut Window,
 1138        &mut Context<Workspace>,
 1139    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1140>;
 1141
 1142#[derive(Default)]
 1143struct DispatchingKeystrokes {
 1144    dispatched: HashSet<Vec<Keystroke>>,
 1145    queue: VecDeque<Keystroke>,
 1146    task: Option<Shared<Task<()>>>,
 1147}
 1148
 1149/// Collects everything project-related for a certain window opened.
 1150/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1151///
 1152/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1153/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1154/// that can be used to register a global action to be triggered from any place in the window.
 1155pub struct Workspace {
 1156    weak_self: WeakEntity<Self>,
 1157    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1158    zoomed: Option<AnyWeakView>,
 1159    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1160    zoomed_position: Option<DockPosition>,
 1161    center: PaneGroup,
 1162    left_dock: Entity<Dock>,
 1163    bottom_dock: Entity<Dock>,
 1164    right_dock: Entity<Dock>,
 1165    panes: Vec<Entity<Pane>>,
 1166    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1167    active_pane: Entity<Pane>,
 1168    last_active_center_pane: Option<WeakEntity<Pane>>,
 1169    last_active_view_id: Option<proto::ViewId>,
 1170    status_bar: Entity<StatusBar>,
 1171    modal_layer: Entity<ModalLayer>,
 1172    toast_layer: Entity<ToastLayer>,
 1173    titlebar_item: Option<AnyView>,
 1174    notifications: Notifications,
 1175    suppressed_notifications: HashSet<NotificationId>,
 1176    project: Entity<Project>,
 1177    follower_states: HashMap<CollaboratorId, FollowerState>,
 1178    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1179    window_edited: bool,
 1180    last_window_title: Option<String>,
 1181    dirty_items: HashMap<EntityId, Subscription>,
 1182    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1183    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1184    database_id: Option<WorkspaceId>,
 1185    app_state: Arc<AppState>,
 1186    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1187    _subscriptions: Vec<Subscription>,
 1188    _apply_leader_updates: Task<Result<()>>,
 1189    _observe_current_user: Task<Result<()>>,
 1190    _schedule_serialize_workspace: Option<Task<()>>,
 1191    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1192    _schedule_serialize_worktree_trust: Task<()>,
 1193    pane_history_timestamp: Arc<AtomicUsize>,
 1194    bounds: Bounds<Pixels>,
 1195    pub centered_layout: bool,
 1196    bounds_save_task_queued: Option<Task<()>>,
 1197    on_prompt_for_new_path: Option<PromptForNewPath>,
 1198    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1199    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1200    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1201    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1202    _items_serializer: Task<Result<()>>,
 1203    session_id: Option<String>,
 1204    scheduled_tasks: Vec<Task<()>>,
 1205    last_open_dock_positions: Vec<DockPosition>,
 1206    removing: bool,
 1207    utility_panes: UtilityPaneState,
 1208}
 1209
 1210impl EventEmitter<Event> for Workspace {}
 1211
 1212#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1213pub struct ViewId {
 1214    pub creator: CollaboratorId,
 1215    pub id: u64,
 1216}
 1217
 1218pub struct FollowerState {
 1219    center_pane: Entity<Pane>,
 1220    dock_pane: Option<Entity<Pane>>,
 1221    active_view_id: Option<ViewId>,
 1222    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1223}
 1224
 1225struct FollowerView {
 1226    view: Box<dyn FollowableItemHandle>,
 1227    location: Option<proto::PanelId>,
 1228}
 1229
 1230impl Workspace {
 1231    pub fn new(
 1232        workspace_id: Option<WorkspaceId>,
 1233        project: Entity<Project>,
 1234        app_state: Arc<AppState>,
 1235        window: &mut Window,
 1236        cx: &mut Context<Self>,
 1237    ) -> Self {
 1238        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1239            cx.subscribe(&trusted_worktrees, |workspace, worktrees_store, e, cx| {
 1240                if let TrustedWorktreesEvent::Trusted(..) = e {
 1241                    // Do not persist auto trusted worktrees
 1242                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1243                        let new_trusted_worktrees =
 1244                            worktrees_store.update(cx, |worktrees_store, cx| {
 1245                                worktrees_store.trusted_paths_for_serialization(cx)
 1246                            });
 1247                        let timeout = cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1248                        workspace._schedule_serialize_worktree_trust =
 1249                            cx.background_spawn(async move {
 1250                                timeout.await;
 1251                                persistence::DB
 1252                                    .save_trusted_worktrees(new_trusted_worktrees)
 1253                                    .await
 1254                                    .log_err();
 1255                            });
 1256                    }
 1257                }
 1258            })
 1259            .detach();
 1260
 1261            cx.observe_global::<SettingsStore>(|_, cx| {
 1262                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1263                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1264                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1265                            trusted_worktrees.auto_trust_all(cx);
 1266                        })
 1267                    }
 1268                }
 1269            })
 1270            .detach();
 1271        }
 1272
 1273        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1274            match event {
 1275                project::Event::RemoteIdChanged(_) => {
 1276                    this.update_window_title(window, cx);
 1277                }
 1278
 1279                project::Event::CollaboratorLeft(peer_id) => {
 1280                    this.collaborator_left(*peer_id, window, cx);
 1281                }
 1282
 1283                project::Event::WorktreeUpdatedEntries(worktree_id, _) => {
 1284                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1285                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1286                            trusted_worktrees.can_trust(*worktree_id, cx);
 1287                        });
 1288                    }
 1289                }
 1290
 1291                project::Event::WorktreeRemoved(_) => {
 1292                    this.update_worktree_data(window, cx);
 1293                }
 1294
 1295                project::Event::WorktreeAdded(worktree_id) => {
 1296                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1297                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1298                            trusted_worktrees.can_trust(*worktree_id, cx);
 1299                        });
 1300                    }
 1301                    this.update_worktree_data(window, cx);
 1302                }
 1303
 1304                project::Event::DisconnectedFromHost => {
 1305                    this.update_window_edited(window, cx);
 1306                    let leaders_to_unfollow =
 1307                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1308                    for leader_id in leaders_to_unfollow {
 1309                        this.unfollow(leader_id, window, cx);
 1310                    }
 1311                }
 1312
 1313                project::Event::DisconnectedFromSshRemote => {
 1314                    this.update_window_edited(window, cx);
 1315                }
 1316
 1317                project::Event::Closed => {
 1318                    window.remove_window();
 1319                }
 1320
 1321                project::Event::DeletedEntry(_, entry_id) => {
 1322                    for pane in this.panes.iter() {
 1323                        pane.update(cx, |pane, cx| {
 1324                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1325                        });
 1326                    }
 1327                }
 1328
 1329                project::Event::Toast {
 1330                    notification_id,
 1331                    message,
 1332                } => this.show_notification(
 1333                    NotificationId::named(notification_id.clone()),
 1334                    cx,
 1335                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1336                ),
 1337
 1338                project::Event::HideToast { notification_id } => {
 1339                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1340                }
 1341
 1342                project::Event::LanguageServerPrompt(request) => {
 1343                    struct LanguageServerPrompt;
 1344
 1345                    let mut hasher = DefaultHasher::new();
 1346                    request.lsp_name.as_str().hash(&mut hasher);
 1347                    let id = hasher.finish();
 1348
 1349                    this.show_notification(
 1350                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1351                        cx,
 1352                        |cx| {
 1353                            cx.new(|cx| {
 1354                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1355                            })
 1356                        },
 1357                    );
 1358                }
 1359
 1360                project::Event::AgentLocationChanged => {
 1361                    this.handle_agent_location_changed(window, cx)
 1362                }
 1363
 1364                _ => {}
 1365            }
 1366            cx.notify()
 1367        })
 1368        .detach();
 1369
 1370        cx.subscribe_in(
 1371            &project.read(cx).breakpoint_store(),
 1372            window,
 1373            |workspace, _, event, window, cx| match event {
 1374                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1375                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1376                    workspace.serialize_workspace(window, cx);
 1377                }
 1378                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1379            },
 1380        )
 1381        .detach();
 1382        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1383            cx.subscribe_in(
 1384                &toolchain_store,
 1385                window,
 1386                |workspace, _, event, window, cx| match event {
 1387                    ToolchainStoreEvent::CustomToolchainsModified => {
 1388                        workspace.serialize_workspace(window, cx);
 1389                    }
 1390                    _ => {}
 1391                },
 1392            )
 1393            .detach();
 1394        }
 1395
 1396        cx.on_focus_lost(window, |this, window, cx| {
 1397            let focus_handle = this.focus_handle(cx);
 1398            window.focus(&focus_handle, cx);
 1399        })
 1400        .detach();
 1401
 1402        let weak_handle = cx.entity().downgrade();
 1403        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1404
 1405        let center_pane = cx.new(|cx| {
 1406            let mut center_pane = Pane::new(
 1407                weak_handle.clone(),
 1408                project.clone(),
 1409                pane_history_timestamp.clone(),
 1410                None,
 1411                NewFile.boxed_clone(),
 1412                true,
 1413                window,
 1414                cx,
 1415            );
 1416            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1417            center_pane
 1418        });
 1419        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1420            .detach();
 1421
 1422        window.focus(&center_pane.focus_handle(cx), cx);
 1423
 1424        cx.emit(Event::PaneAdded(center_pane.clone()));
 1425
 1426        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1427        app_state.workspace_store.update(cx, |store, _| {
 1428            store.workspaces.insert(window_handle);
 1429        });
 1430
 1431        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1432        let mut connection_status = app_state.client.status();
 1433        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1434            current_user.next().await;
 1435            connection_status.next().await;
 1436            let mut stream =
 1437                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1438
 1439            while stream.recv().await.is_some() {
 1440                this.update(cx, |_, cx| cx.notify())?;
 1441            }
 1442            anyhow::Ok(())
 1443        });
 1444
 1445        // All leader updates are enqueued and then processed in a single task, so
 1446        // that each asynchronous operation can be run in order.
 1447        let (leader_updates_tx, mut leader_updates_rx) =
 1448            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1449        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1450            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1451                Self::process_leader_update(&this, leader_id, update, cx)
 1452                    .await
 1453                    .log_err();
 1454            }
 1455
 1456            Ok(())
 1457        });
 1458
 1459        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1460        let modal_layer = cx.new(|_| ModalLayer::new());
 1461        let toast_layer = cx.new(|_| ToastLayer::new());
 1462        cx.subscribe(
 1463            &modal_layer,
 1464            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1465                cx.emit(Event::ModalOpened);
 1466            },
 1467        )
 1468        .detach();
 1469
 1470        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1471        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1472        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1473        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1474        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1475        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1476        let status_bar = cx.new(|cx| {
 1477            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1478            status_bar.add_left_item(left_dock_buttons, window, cx);
 1479            status_bar.add_right_item(right_dock_buttons, window, cx);
 1480            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1481            status_bar
 1482        });
 1483
 1484        let session_id = app_state.session.read(cx).id().to_owned();
 1485
 1486        let mut active_call = None;
 1487        if let Some(call) = ActiveCall::try_global(cx) {
 1488            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1489            active_call = Some((call, subscriptions));
 1490        }
 1491
 1492        let (serializable_items_tx, serializable_items_rx) =
 1493            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1494        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1495            Self::serialize_items(&this, serializable_items_rx, cx).await
 1496        });
 1497
 1498        let subscriptions = vec![
 1499            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1500            cx.observe_window_bounds(window, move |this, window, cx| {
 1501                if this.bounds_save_task_queued.is_some() {
 1502                    return;
 1503                }
 1504                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1505                    cx.background_executor()
 1506                        .timer(Duration::from_millis(100))
 1507                        .await;
 1508                    this.update_in(cx, |this, window, cx| {
 1509                        if let Some(display) = window.display(cx)
 1510                            && let Ok(display_uuid) = display.uuid()
 1511                        {
 1512                            let window_bounds = window.inner_window_bounds();
 1513                            let has_paths = !this.root_paths(cx).is_empty();
 1514                            if !has_paths {
 1515                                cx.background_executor()
 1516                                    .spawn(persistence::write_default_window_bounds(
 1517                                        window_bounds,
 1518                                        display_uuid,
 1519                                    ))
 1520                                    .detach_and_log_err(cx);
 1521                            }
 1522                            if let Some(database_id) = workspace_id {
 1523                                cx.background_executor()
 1524                                    .spawn(DB.set_window_open_status(
 1525                                        database_id,
 1526                                        SerializedWindowBounds(window_bounds),
 1527                                        display_uuid,
 1528                                    ))
 1529                                    .detach_and_log_err(cx);
 1530                            } else {
 1531                                cx.background_executor()
 1532                                    .spawn(persistence::write_default_window_bounds(
 1533                                        window_bounds,
 1534                                        display_uuid,
 1535                                    ))
 1536                                    .detach_and_log_err(cx);
 1537                            }
 1538                        }
 1539                        this.bounds_save_task_queued.take();
 1540                    })
 1541                    .ok();
 1542                }));
 1543                cx.notify();
 1544            }),
 1545            cx.observe_window_appearance(window, |_, window, cx| {
 1546                let window_appearance = window.appearance();
 1547
 1548                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1549
 1550                GlobalTheme::reload_theme(cx);
 1551                GlobalTheme::reload_icon_theme(cx);
 1552            }),
 1553            cx.on_release(move |this, cx| {
 1554                this.app_state.workspace_store.update(cx, move |store, _| {
 1555                    store.workspaces.remove(&window_handle);
 1556                })
 1557            }),
 1558        ];
 1559
 1560        cx.defer_in(window, move |this, window, cx| {
 1561            this.update_window_title(window, cx);
 1562            this.show_initial_notifications(cx);
 1563        });
 1564
 1565        let mut center = PaneGroup::new(center_pane.clone());
 1566        center.set_is_center(true);
 1567        center.mark_positions(cx);
 1568
 1569        Workspace {
 1570            weak_self: weak_handle.clone(),
 1571            zoomed: None,
 1572            zoomed_position: None,
 1573            previous_dock_drag_coordinates: None,
 1574            center,
 1575            panes: vec![center_pane.clone()],
 1576            panes_by_item: Default::default(),
 1577            active_pane: center_pane.clone(),
 1578            last_active_center_pane: Some(center_pane.downgrade()),
 1579            last_active_view_id: None,
 1580            status_bar,
 1581            modal_layer,
 1582            toast_layer,
 1583            titlebar_item: None,
 1584            notifications: Notifications::default(),
 1585            suppressed_notifications: HashSet::default(),
 1586            left_dock,
 1587            bottom_dock,
 1588            right_dock,
 1589            project: project.clone(),
 1590            follower_states: Default::default(),
 1591            last_leaders_by_pane: Default::default(),
 1592            dispatching_keystrokes: Default::default(),
 1593            window_edited: false,
 1594            last_window_title: None,
 1595            dirty_items: Default::default(),
 1596            active_call,
 1597            database_id: workspace_id,
 1598            app_state,
 1599            _observe_current_user,
 1600            _apply_leader_updates,
 1601            _schedule_serialize_workspace: None,
 1602            _schedule_serialize_ssh_paths: None,
 1603            _schedule_serialize_worktree_trust: Task::ready(()),
 1604            leader_updates_tx,
 1605            _subscriptions: subscriptions,
 1606            pane_history_timestamp,
 1607            workspace_actions: Default::default(),
 1608            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1609            bounds: Default::default(),
 1610            centered_layout: false,
 1611            bounds_save_task_queued: None,
 1612            on_prompt_for_new_path: None,
 1613            on_prompt_for_open_path: None,
 1614            terminal_provider: None,
 1615            debugger_provider: None,
 1616            serializable_items_tx,
 1617            _items_serializer,
 1618            session_id: Some(session_id),
 1619
 1620            scheduled_tasks: Vec::new(),
 1621            last_open_dock_positions: Vec::new(),
 1622            removing: false,
 1623            utility_panes: UtilityPaneState::default(),
 1624        }
 1625    }
 1626
 1627    pub fn new_local(
 1628        abs_paths: Vec<PathBuf>,
 1629        app_state: Arc<AppState>,
 1630        requesting_window: Option<WindowHandle<Workspace>>,
 1631        env: Option<HashMap<String, String>>,
 1632        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1633        cx: &mut App,
 1634    ) -> Task<
 1635        anyhow::Result<(
 1636            WindowHandle<Workspace>,
 1637            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1638        )>,
 1639    > {
 1640        let project_handle = Project::local(
 1641            app_state.client.clone(),
 1642            app_state.node_runtime.clone(),
 1643            app_state.user_store.clone(),
 1644            app_state.languages.clone(),
 1645            app_state.fs.clone(),
 1646            env,
 1647            true,
 1648            cx,
 1649        );
 1650
 1651        cx.spawn(async move |cx| {
 1652            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1653            for path in abs_paths.into_iter() {
 1654                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1655                    paths_to_open.push(canonical)
 1656                } else {
 1657                    paths_to_open.push(path)
 1658                }
 1659            }
 1660
 1661            let serialized_workspace =
 1662                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1663
 1664            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1665                paths_to_open = paths.ordered_paths().cloned().collect();
 1666                if !paths.is_lexicographically_ordered() {
 1667                    project_handle
 1668                        .update(cx, |project, cx| {
 1669                            project.set_worktrees_reordered(true, cx);
 1670                        })
 1671                        .log_err();
 1672                }
 1673            }
 1674
 1675            // Get project paths for all of the abs_paths
 1676            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1677                Vec::with_capacity(paths_to_open.len());
 1678
 1679            for path in paths_to_open.into_iter() {
 1680                if let Some((_, project_entry)) = cx
 1681                    .update(|cx| {
 1682                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1683                    })?
 1684                    .await
 1685                    .log_err()
 1686                {
 1687                    project_paths.push((path, Some(project_entry)));
 1688                } else {
 1689                    project_paths.push((path, None));
 1690                }
 1691            }
 1692
 1693            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1694                serialized_workspace.id
 1695            } else {
 1696                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1697            };
 1698
 1699            let toolchains = DB.toolchains(workspace_id).await?;
 1700
 1701            for (toolchain, worktree_id, path) in toolchains {
 1702                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1703                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1704                    continue;
 1705                }
 1706
 1707                project_handle
 1708                    .update(cx, |this, cx| {
 1709                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1710                    })?
 1711                    .await;
 1712            }
 1713            if let Some(workspace) = serialized_workspace.as_ref() {
 1714                project_handle.update(cx, |this, cx| {
 1715                    for (scope, toolchains) in &workspace.user_toolchains {
 1716                        for toolchain in toolchains {
 1717                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1718                        }
 1719                    }
 1720                })?;
 1721            }
 1722
 1723            let window = if let Some(window) = requesting_window {
 1724                let centered_layout = serialized_workspace
 1725                    .as_ref()
 1726                    .map(|w| w.centered_layout)
 1727                    .unwrap_or(false);
 1728
 1729                cx.update_window(window.into(), |_, window, cx| {
 1730                    window.replace_root(cx, |window, cx| {
 1731                        let mut workspace = Workspace::new(
 1732                            Some(workspace_id),
 1733                            project_handle.clone(),
 1734                            app_state.clone(),
 1735                            window,
 1736                            cx,
 1737                        );
 1738
 1739                        workspace.centered_layout = centered_layout;
 1740
 1741                        // Call init callback to add items before window renders
 1742                        if let Some(init) = init {
 1743                            init(&mut workspace, window, cx);
 1744                        }
 1745
 1746                        workspace
 1747                    });
 1748                })?;
 1749                window
 1750            } else {
 1751                let window_bounds_override = window_bounds_env_override();
 1752                let is_empty_workspace = project_paths.is_empty();
 1753
 1754                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1755                    (Some(WindowBounds::Windowed(bounds)), None)
 1756                } else if let Some(workspace) = serialized_workspace.as_ref() {
 1757                    // Reopening an existing workspace - restore its saved bounds
 1758                    if let (Some(display), Some(bounds)) =
 1759                        (workspace.display, workspace.window_bounds.as_ref())
 1760                    {
 1761                        (Some(bounds.0), Some(display))
 1762                    } else {
 1763                        (None, None)
 1764                    }
 1765                } else if is_empty_workspace {
 1766                    // Empty workspace - try to restore the last known no-project window bounds
 1767                    if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1768                        (Some(bounds), Some(display))
 1769                    } else {
 1770                        (None, None)
 1771                    }
 1772                } else {
 1773                    // New window - let GPUI's default_bounds() handle cascading
 1774                    (None, None)
 1775                };
 1776
 1777                // Use the serialized workspace to construct the new window
 1778                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1779                options.window_bounds = window_bounds;
 1780                let centered_layout = serialized_workspace
 1781                    .as_ref()
 1782                    .map(|w| w.centered_layout)
 1783                    .unwrap_or(false);
 1784                cx.open_window(options, {
 1785                    let app_state = app_state.clone();
 1786                    let project_handle = project_handle.clone();
 1787                    move |window, cx| {
 1788                        cx.new(|cx| {
 1789                            let mut workspace = Workspace::new(
 1790                                Some(workspace_id),
 1791                                project_handle,
 1792                                app_state,
 1793                                window,
 1794                                cx,
 1795                            );
 1796                            workspace.centered_layout = centered_layout;
 1797
 1798                            // Call init callback to add items before window renders
 1799                            if let Some(init) = init {
 1800                                init(&mut workspace, window, cx);
 1801                            }
 1802
 1803                            workspace
 1804                        })
 1805                    }
 1806                })?
 1807            };
 1808
 1809            notify_if_database_failed(window, cx);
 1810            let opened_items = window
 1811                .update(cx, |_workspace, window, cx| {
 1812                    open_items(serialized_workspace, project_paths, window, cx)
 1813                })?
 1814                .await
 1815                .unwrap_or_default();
 1816
 1817            window
 1818                .update(cx, |workspace, window, cx| {
 1819                    window.activate_window();
 1820                    workspace.update_history(cx);
 1821                })
 1822                .log_err();
 1823            Ok((window, opened_items))
 1824        })
 1825    }
 1826
 1827    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1828        self.weak_self.clone()
 1829    }
 1830
 1831    pub fn left_dock(&self) -> &Entity<Dock> {
 1832        &self.left_dock
 1833    }
 1834
 1835    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1836        &self.bottom_dock
 1837    }
 1838
 1839    pub fn set_bottom_dock_layout(
 1840        &mut self,
 1841        layout: BottomDockLayout,
 1842        window: &mut Window,
 1843        cx: &mut Context<Self>,
 1844    ) {
 1845        let fs = self.project().read(cx).fs();
 1846        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1847            content.workspace.bottom_dock_layout = Some(layout);
 1848        });
 1849
 1850        cx.notify();
 1851        self.serialize_workspace(window, cx);
 1852    }
 1853
 1854    pub fn right_dock(&self) -> &Entity<Dock> {
 1855        &self.right_dock
 1856    }
 1857
 1858    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1859        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1860    }
 1861
 1862    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1863        match position {
 1864            DockPosition::Left => &self.left_dock,
 1865            DockPosition::Bottom => &self.bottom_dock,
 1866            DockPosition::Right => &self.right_dock,
 1867        }
 1868    }
 1869
 1870    pub fn is_edited(&self) -> bool {
 1871        self.window_edited
 1872    }
 1873
 1874    pub fn add_panel<T: Panel>(
 1875        &mut self,
 1876        panel: Entity<T>,
 1877        window: &mut Window,
 1878        cx: &mut Context<Self>,
 1879    ) {
 1880        let focus_handle = panel.panel_focus_handle(cx);
 1881        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1882            .detach();
 1883
 1884        let dock_position = panel.position(window, cx);
 1885        let dock = self.dock_at_position(dock_position);
 1886
 1887        dock.update(cx, |dock, cx| {
 1888            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1889        });
 1890    }
 1891
 1892    pub fn remove_panel<T: Panel>(
 1893        &mut self,
 1894        panel: &Entity<T>,
 1895        window: &mut Window,
 1896        cx: &mut Context<Self>,
 1897    ) {
 1898        let mut found_in_dock = None;
 1899        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1900            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1901
 1902            if found {
 1903                found_in_dock = Some(dock.clone());
 1904            }
 1905        }
 1906        if let Some(found_in_dock) = found_in_dock {
 1907            let position = found_in_dock.read(cx).position();
 1908            let slot = utility_slot_for_dock_position(position);
 1909            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1910        }
 1911    }
 1912
 1913    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1914        &self.status_bar
 1915    }
 1916
 1917    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1918        StatusBarSettings::get_global(cx).show
 1919    }
 1920
 1921    pub fn app_state(&self) -> &Arc<AppState> {
 1922        &self.app_state
 1923    }
 1924
 1925    pub fn user_store(&self) -> &Entity<UserStore> {
 1926        &self.app_state.user_store
 1927    }
 1928
 1929    pub fn project(&self) -> &Entity<Project> {
 1930        &self.project
 1931    }
 1932
 1933    pub fn path_style(&self, cx: &App) -> PathStyle {
 1934        self.project.read(cx).path_style(cx)
 1935    }
 1936
 1937    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1938        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1939
 1940        for pane_handle in &self.panes {
 1941            let pane = pane_handle.read(cx);
 1942
 1943            for entry in pane.activation_history() {
 1944                history.insert(
 1945                    entry.entity_id,
 1946                    history
 1947                        .get(&entry.entity_id)
 1948                        .cloned()
 1949                        .unwrap_or(0)
 1950                        .max(entry.timestamp),
 1951                );
 1952            }
 1953        }
 1954
 1955        history
 1956    }
 1957
 1958    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1959        let mut recent_item: Option<Entity<T>> = None;
 1960        let mut recent_timestamp = 0;
 1961        for pane_handle in &self.panes {
 1962            let pane = pane_handle.read(cx);
 1963            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1964                pane.items().map(|item| (item.item_id(), item)).collect();
 1965            for entry in pane.activation_history() {
 1966                if entry.timestamp > recent_timestamp
 1967                    && let Some(&item) = item_map.get(&entry.entity_id)
 1968                    && let Some(typed_item) = item.act_as::<T>(cx)
 1969                {
 1970                    recent_timestamp = entry.timestamp;
 1971                    recent_item = Some(typed_item);
 1972                }
 1973            }
 1974        }
 1975        recent_item
 1976    }
 1977
 1978    pub fn recent_navigation_history_iter(
 1979        &self,
 1980        cx: &App,
 1981    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1982        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1983        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1984
 1985        for pane in &self.panes {
 1986            let pane = pane.read(cx);
 1987
 1988            pane.nav_history()
 1989                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1990                    if let Some(fs_path) = &fs_path {
 1991                        abs_paths_opened
 1992                            .entry(fs_path.clone())
 1993                            .or_default()
 1994                            .insert(project_path.clone());
 1995                    }
 1996                    let timestamp = entry.timestamp;
 1997                    match history.entry(project_path) {
 1998                        hash_map::Entry::Occupied(mut entry) => {
 1999                            let (_, old_timestamp) = entry.get();
 2000                            if &timestamp > old_timestamp {
 2001                                entry.insert((fs_path, timestamp));
 2002                            }
 2003                        }
 2004                        hash_map::Entry::Vacant(entry) => {
 2005                            entry.insert((fs_path, timestamp));
 2006                        }
 2007                    }
 2008                });
 2009
 2010            if let Some(item) = pane.active_item()
 2011                && let Some(project_path) = item.project_path(cx)
 2012            {
 2013                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2014
 2015                if let Some(fs_path) = &fs_path {
 2016                    abs_paths_opened
 2017                        .entry(fs_path.clone())
 2018                        .or_default()
 2019                        .insert(project_path.clone());
 2020                }
 2021
 2022                history.insert(project_path, (fs_path, std::usize::MAX));
 2023            }
 2024        }
 2025
 2026        history
 2027            .into_iter()
 2028            .sorted_by_key(|(_, (_, order))| *order)
 2029            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2030            .rev()
 2031            .filter(move |(history_path, abs_path)| {
 2032                let latest_project_path_opened = abs_path
 2033                    .as_ref()
 2034                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2035                    .and_then(|project_paths| {
 2036                        project_paths
 2037                            .iter()
 2038                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2039                    });
 2040
 2041                latest_project_path_opened.is_none_or(|path| path == history_path)
 2042            })
 2043    }
 2044
 2045    pub fn recent_navigation_history(
 2046        &self,
 2047        limit: Option<usize>,
 2048        cx: &App,
 2049    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2050        self.recent_navigation_history_iter(cx)
 2051            .take(limit.unwrap_or(usize::MAX))
 2052            .collect()
 2053    }
 2054
 2055    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2056        for pane in &self.panes {
 2057            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2058        }
 2059    }
 2060
 2061    fn navigate_history(
 2062        &mut self,
 2063        pane: WeakEntity<Pane>,
 2064        mode: NavigationMode,
 2065        window: &mut Window,
 2066        cx: &mut Context<Workspace>,
 2067    ) -> Task<Result<()>> {
 2068        let to_load = if let Some(pane) = pane.upgrade() {
 2069            pane.update(cx, |pane, cx| {
 2070                window.focus(&pane.focus_handle(cx), cx);
 2071                loop {
 2072                    // Retrieve the weak item handle from the history.
 2073                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2074
 2075                    // If the item is still present in this pane, then activate it.
 2076                    if let Some(index) = entry
 2077                        .item
 2078                        .upgrade()
 2079                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2080                    {
 2081                        let prev_active_item_index = pane.active_item_index();
 2082                        pane.nav_history_mut().set_mode(mode);
 2083                        pane.activate_item(index, true, true, window, cx);
 2084                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2085
 2086                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2087                        if let Some(data) = entry.data {
 2088                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2089                        }
 2090
 2091                        if navigated {
 2092                            break None;
 2093                        }
 2094                    } else {
 2095                        // If the item is no longer present in this pane, then retrieve its
 2096                        // path info in order to reopen it.
 2097                        break pane
 2098                            .nav_history()
 2099                            .path_for_item(entry.item.id())
 2100                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2101                    }
 2102                }
 2103            })
 2104        } else {
 2105            None
 2106        };
 2107
 2108        if let Some((project_path, abs_path, entry)) = to_load {
 2109            // If the item was no longer present, then load it again from its previous path, first try the local path
 2110            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2111
 2112            cx.spawn_in(window, async move  |workspace, cx| {
 2113                let open_by_project_path = open_by_project_path.await;
 2114                let mut navigated = false;
 2115                match open_by_project_path
 2116                    .with_context(|| format!("Navigating to {project_path:?}"))
 2117                {
 2118                    Ok((project_entry_id, build_item)) => {
 2119                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2120                            pane.nav_history_mut().set_mode(mode);
 2121                            pane.active_item().map(|p| p.item_id())
 2122                        })?;
 2123
 2124                        pane.update_in(cx, |pane, window, cx| {
 2125                            let item = pane.open_item(
 2126                                project_entry_id,
 2127                                project_path,
 2128                                true,
 2129                                entry.is_preview,
 2130                                true,
 2131                                None,
 2132                                window, cx,
 2133                                build_item,
 2134                            );
 2135                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2136                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2137                            if let Some(data) = entry.data {
 2138                                navigated |= item.navigate(data, window, cx);
 2139                            }
 2140                        })?;
 2141                    }
 2142                    Err(open_by_project_path_e) => {
 2143                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2144                        // and its worktree is now dropped
 2145                        if let Some(abs_path) = abs_path {
 2146                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2147                                pane.nav_history_mut().set_mode(mode);
 2148                                pane.active_item().map(|p| p.item_id())
 2149                            })?;
 2150                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2151                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2152                            })?;
 2153                            match open_by_abs_path
 2154                                .await
 2155                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2156                            {
 2157                                Ok(item) => {
 2158                                    pane.update_in(cx, |pane, window, cx| {
 2159                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2160                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2161                                        if let Some(data) = entry.data {
 2162                                            navigated |= item.navigate(data, window, cx);
 2163                                        }
 2164                                    })?;
 2165                                }
 2166                                Err(open_by_abs_path_e) => {
 2167                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2168                                }
 2169                            }
 2170                        }
 2171                    }
 2172                }
 2173
 2174                if !navigated {
 2175                    workspace
 2176                        .update_in(cx, |workspace, window, cx| {
 2177                            Self::navigate_history(workspace, pane, mode, window, cx)
 2178                        })?
 2179                        .await?;
 2180                }
 2181
 2182                Ok(())
 2183            })
 2184        } else {
 2185            Task::ready(Ok(()))
 2186        }
 2187    }
 2188
 2189    pub fn go_back(
 2190        &mut self,
 2191        pane: WeakEntity<Pane>,
 2192        window: &mut Window,
 2193        cx: &mut Context<Workspace>,
 2194    ) -> Task<Result<()>> {
 2195        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2196    }
 2197
 2198    pub fn go_forward(
 2199        &mut self,
 2200        pane: WeakEntity<Pane>,
 2201        window: &mut Window,
 2202        cx: &mut Context<Workspace>,
 2203    ) -> Task<Result<()>> {
 2204        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2205    }
 2206
 2207    pub fn reopen_closed_item(
 2208        &mut self,
 2209        window: &mut Window,
 2210        cx: &mut Context<Workspace>,
 2211    ) -> Task<Result<()>> {
 2212        self.navigate_history(
 2213            self.active_pane().downgrade(),
 2214            NavigationMode::ReopeningClosedItem,
 2215            window,
 2216            cx,
 2217        )
 2218    }
 2219
 2220    pub fn client(&self) -> &Arc<Client> {
 2221        &self.app_state.client
 2222    }
 2223
 2224    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2225        self.titlebar_item = Some(item);
 2226        cx.notify();
 2227    }
 2228
 2229    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2230        self.on_prompt_for_new_path = Some(prompt)
 2231    }
 2232
 2233    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2234        self.on_prompt_for_open_path = Some(prompt)
 2235    }
 2236
 2237    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2238        self.terminal_provider = Some(Box::new(provider));
 2239    }
 2240
 2241    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2242        self.debugger_provider = Some(Arc::new(provider));
 2243    }
 2244
 2245    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2246        self.debugger_provider.clone()
 2247    }
 2248
 2249    pub fn prompt_for_open_path(
 2250        &mut self,
 2251        path_prompt_options: PathPromptOptions,
 2252        lister: DirectoryLister,
 2253        window: &mut Window,
 2254        cx: &mut Context<Self>,
 2255    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2256        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2257            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2258            let rx = prompt(self, lister, window, cx);
 2259            self.on_prompt_for_open_path = Some(prompt);
 2260            rx
 2261        } else {
 2262            let (tx, rx) = oneshot::channel();
 2263            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2264
 2265            cx.spawn_in(window, async move |workspace, cx| {
 2266                let Ok(result) = abs_path.await else {
 2267                    return Ok(());
 2268                };
 2269
 2270                match result {
 2271                    Ok(result) => {
 2272                        tx.send(result).ok();
 2273                    }
 2274                    Err(err) => {
 2275                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2276                            workspace.show_portal_error(err.to_string(), cx);
 2277                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2278                            let rx = prompt(workspace, lister, window, cx);
 2279                            workspace.on_prompt_for_open_path = Some(prompt);
 2280                            rx
 2281                        })?;
 2282                        if let Ok(path) = rx.await {
 2283                            tx.send(path).ok();
 2284                        }
 2285                    }
 2286                };
 2287                anyhow::Ok(())
 2288            })
 2289            .detach();
 2290
 2291            rx
 2292        }
 2293    }
 2294
 2295    pub fn prompt_for_new_path(
 2296        &mut self,
 2297        lister: DirectoryLister,
 2298        suggested_name: Option<String>,
 2299        window: &mut Window,
 2300        cx: &mut Context<Self>,
 2301    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2302        if self.project.read(cx).is_via_collab()
 2303            || self.project.read(cx).is_via_remote_server()
 2304            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2305        {
 2306            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2307            let rx = prompt(self, lister, window, cx);
 2308            self.on_prompt_for_new_path = Some(prompt);
 2309            return rx;
 2310        }
 2311
 2312        let (tx, rx) = oneshot::channel();
 2313        cx.spawn_in(window, async move |workspace, cx| {
 2314            let abs_path = workspace.update(cx, |workspace, cx| {
 2315                let relative_to = workspace
 2316                    .most_recent_active_path(cx)
 2317                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2318                    .or_else(|| {
 2319                        let project = workspace.project.read(cx);
 2320                        project.visible_worktrees(cx).find_map(|worktree| {
 2321                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2322                        })
 2323                    })
 2324                    .or_else(std::env::home_dir)
 2325                    .unwrap_or_else(|| PathBuf::from(""));
 2326                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2327            })?;
 2328            let abs_path = match abs_path.await? {
 2329                Ok(path) => path,
 2330                Err(err) => {
 2331                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2332                        workspace.show_portal_error(err.to_string(), cx);
 2333
 2334                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2335                        let rx = prompt(workspace, lister, window, cx);
 2336                        workspace.on_prompt_for_new_path = Some(prompt);
 2337                        rx
 2338                    })?;
 2339                    if let Ok(path) = rx.await {
 2340                        tx.send(path).ok();
 2341                    }
 2342                    return anyhow::Ok(());
 2343                }
 2344            };
 2345
 2346            tx.send(abs_path.map(|path| vec![path])).ok();
 2347            anyhow::Ok(())
 2348        })
 2349        .detach();
 2350
 2351        rx
 2352    }
 2353
 2354    pub fn titlebar_item(&self) -> Option<AnyView> {
 2355        self.titlebar_item.clone()
 2356    }
 2357
 2358    /// Call the given callback with a workspace whose project is local.
 2359    ///
 2360    /// If the given workspace has a local project, then it will be passed
 2361    /// to the callback. Otherwise, a new empty window will be created.
 2362    pub fn with_local_workspace<T, F>(
 2363        &mut self,
 2364        window: &mut Window,
 2365        cx: &mut Context<Self>,
 2366        callback: F,
 2367    ) -> Task<Result<T>>
 2368    where
 2369        T: 'static,
 2370        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2371    {
 2372        if self.project.read(cx).is_local() {
 2373            Task::ready(Ok(callback(self, window, cx)))
 2374        } else {
 2375            let env = self.project.read(cx).cli_environment(cx);
 2376            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2377            cx.spawn_in(window, async move |_vh, cx| {
 2378                let (workspace, _) = task.await?;
 2379                workspace.update(cx, callback)
 2380            })
 2381        }
 2382    }
 2383
 2384    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2385        self.project.read(cx).worktrees(cx)
 2386    }
 2387
 2388    pub fn visible_worktrees<'a>(
 2389        &self,
 2390        cx: &'a App,
 2391    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2392        self.project.read(cx).visible_worktrees(cx)
 2393    }
 2394
 2395    #[cfg(any(test, feature = "test-support"))]
 2396    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2397        let futures = self
 2398            .worktrees(cx)
 2399            .filter_map(|worktree| worktree.read(cx).as_local())
 2400            .map(|worktree| worktree.scan_complete())
 2401            .collect::<Vec<_>>();
 2402        async move {
 2403            for future in futures {
 2404                future.await;
 2405            }
 2406        }
 2407    }
 2408
 2409    pub fn close_global(cx: &mut App) {
 2410        cx.defer(|cx| {
 2411            cx.windows().iter().find(|window| {
 2412                window
 2413                    .update(cx, |_, window, _| {
 2414                        if window.is_window_active() {
 2415                            //This can only get called when the window's project connection has been lost
 2416                            //so we don't need to prompt the user for anything and instead just close the window
 2417                            window.remove_window();
 2418                            true
 2419                        } else {
 2420                            false
 2421                        }
 2422                    })
 2423                    .unwrap_or(false)
 2424            });
 2425        });
 2426    }
 2427
 2428    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2429        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2430        cx.spawn_in(window, async move |_, cx| {
 2431            if prepare.await? {
 2432                cx.update(|window, _cx| window.remove_window())?;
 2433            }
 2434            anyhow::Ok(())
 2435        })
 2436        .detach_and_log_err(cx)
 2437    }
 2438
 2439    pub fn move_focused_panel_to_next_position(
 2440        &mut self,
 2441        _: &MoveFocusedPanelToNextPosition,
 2442        window: &mut Window,
 2443        cx: &mut Context<Self>,
 2444    ) {
 2445        let docks = self.all_docks();
 2446        let active_dock = docks
 2447            .into_iter()
 2448            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2449
 2450        if let Some(dock) = active_dock {
 2451            dock.update(cx, |dock, cx| {
 2452                let active_panel = dock
 2453                    .active_panel()
 2454                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2455
 2456                if let Some(panel) = active_panel {
 2457                    panel.move_to_next_position(window, cx);
 2458                }
 2459            })
 2460        }
 2461    }
 2462
 2463    pub fn prepare_to_close(
 2464        &mut self,
 2465        close_intent: CloseIntent,
 2466        window: &mut Window,
 2467        cx: &mut Context<Self>,
 2468    ) -> Task<Result<bool>> {
 2469        let active_call = self.active_call().cloned();
 2470
 2471        cx.spawn_in(window, async move |this, cx| {
 2472            this.update(cx, |this, _| {
 2473                if close_intent == CloseIntent::CloseWindow {
 2474                    this.removing = true;
 2475                }
 2476            })?;
 2477
 2478            let workspace_count = cx.update(|_window, cx| {
 2479                cx.windows()
 2480                    .iter()
 2481                    .filter(|window| window.downcast::<Workspace>().is_some())
 2482                    .count()
 2483            })?;
 2484
 2485            #[cfg(target_os = "macos")]
 2486            let save_last_workspace = false;
 2487
 2488            // On Linux and Windows, closing the last window should restore the last workspace.
 2489            #[cfg(not(target_os = "macos"))]
 2490            let save_last_workspace = {
 2491                let remaining_workspaces = cx.update(|_window, cx| {
 2492                    cx.windows()
 2493                        .iter()
 2494                        .filter_map(|window| window.downcast::<Workspace>())
 2495                        .filter_map(|workspace| {
 2496                            workspace
 2497                                .update(cx, |workspace, _, _| workspace.removing)
 2498                                .ok()
 2499                        })
 2500                        .filter(|removing| !removing)
 2501                        .count()
 2502                })?;
 2503
 2504                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2505            };
 2506
 2507            if let Some(active_call) = active_call
 2508                && workspace_count == 1
 2509                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2510            {
 2511                if close_intent == CloseIntent::CloseWindow {
 2512                    let answer = cx.update(|window, cx| {
 2513                        window.prompt(
 2514                            PromptLevel::Warning,
 2515                            "Do you want to leave the current call?",
 2516                            None,
 2517                            &["Close window and hang up", "Cancel"],
 2518                            cx,
 2519                        )
 2520                    })?;
 2521
 2522                    if answer.await.log_err() == Some(1) {
 2523                        return anyhow::Ok(false);
 2524                    } else {
 2525                        active_call
 2526                            .update(cx, |call, cx| call.hang_up(cx))?
 2527                            .await
 2528                            .log_err();
 2529                    }
 2530                }
 2531                if close_intent == CloseIntent::ReplaceWindow {
 2532                    _ = active_call.update(cx, |this, cx| {
 2533                        let workspace = cx
 2534                            .windows()
 2535                            .iter()
 2536                            .filter_map(|window| window.downcast::<Workspace>())
 2537                            .next()
 2538                            .unwrap();
 2539                        let project = workspace.read(cx)?.project.clone();
 2540                        if project.read(cx).is_shared() {
 2541                            this.unshare_project(project, cx)?;
 2542                        }
 2543                        Ok::<_, anyhow::Error>(())
 2544                    })?;
 2545                }
 2546            }
 2547
 2548            let save_result = this
 2549                .update_in(cx, |this, window, cx| {
 2550                    this.save_all_internal(SaveIntent::Close, window, cx)
 2551                })?
 2552                .await;
 2553
 2554            // If we're not quitting, but closing, we remove the workspace from
 2555            // the current session.
 2556            if close_intent != CloseIntent::Quit
 2557                && !save_last_workspace
 2558                && save_result.as_ref().is_ok_and(|&res| res)
 2559            {
 2560                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2561                    .await;
 2562            }
 2563
 2564            save_result
 2565        })
 2566    }
 2567
 2568    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2569        self.save_all_internal(
 2570            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2571            window,
 2572            cx,
 2573        )
 2574        .detach_and_log_err(cx);
 2575    }
 2576
 2577    fn send_keystrokes(
 2578        &mut self,
 2579        action: &SendKeystrokes,
 2580        window: &mut Window,
 2581        cx: &mut Context<Self>,
 2582    ) {
 2583        let keystrokes: Vec<Keystroke> = action
 2584            .0
 2585            .split(' ')
 2586            .flat_map(|k| Keystroke::parse(k).log_err())
 2587            .map(|k| {
 2588                cx.keyboard_mapper()
 2589                    .map_key_equivalent(k, true)
 2590                    .inner()
 2591                    .clone()
 2592            })
 2593            .collect();
 2594        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2595    }
 2596
 2597    pub fn send_keystrokes_impl(
 2598        &mut self,
 2599        keystrokes: Vec<Keystroke>,
 2600        window: &mut Window,
 2601        cx: &mut Context<Self>,
 2602    ) -> Shared<Task<()>> {
 2603        let mut state = self.dispatching_keystrokes.borrow_mut();
 2604        if !state.dispatched.insert(keystrokes.clone()) {
 2605            cx.propagate();
 2606            return state.task.clone().unwrap();
 2607        }
 2608
 2609        state.queue.extend(keystrokes);
 2610
 2611        let keystrokes = self.dispatching_keystrokes.clone();
 2612        if state.task.is_none() {
 2613            state.task = Some(
 2614                window
 2615                    .spawn(cx, async move |cx| {
 2616                        // limit to 100 keystrokes to avoid infinite recursion.
 2617                        for _ in 0..100 {
 2618                            let mut state = keystrokes.borrow_mut();
 2619                            let Some(keystroke) = state.queue.pop_front() else {
 2620                                state.dispatched.clear();
 2621                                state.task.take();
 2622                                return;
 2623                            };
 2624                            drop(state);
 2625                            cx.update(|window, cx| {
 2626                                let focused = window.focused(cx);
 2627                                window.dispatch_keystroke(keystroke.clone(), cx);
 2628                                if window.focused(cx) != focused {
 2629                                    // dispatch_keystroke may cause the focus to change.
 2630                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2631                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2632                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2633                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2634                                    // )
 2635                                    window.draw(cx).clear();
 2636                                }
 2637                            })
 2638                            .ok();
 2639                        }
 2640
 2641                        *keystrokes.borrow_mut() = Default::default();
 2642                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2643                    })
 2644                    .shared(),
 2645            );
 2646        }
 2647        state.task.clone().unwrap()
 2648    }
 2649
 2650    fn save_all_internal(
 2651        &mut self,
 2652        mut save_intent: SaveIntent,
 2653        window: &mut Window,
 2654        cx: &mut Context<Self>,
 2655    ) -> Task<Result<bool>> {
 2656        if self.project.read(cx).is_disconnected(cx) {
 2657            return Task::ready(Ok(true));
 2658        }
 2659        let dirty_items = self
 2660            .panes
 2661            .iter()
 2662            .flat_map(|pane| {
 2663                pane.read(cx).items().filter_map(|item| {
 2664                    if item.is_dirty(cx) {
 2665                        item.tab_content_text(0, cx);
 2666                        Some((pane.downgrade(), item.boxed_clone()))
 2667                    } else {
 2668                        None
 2669                    }
 2670                })
 2671            })
 2672            .collect::<Vec<_>>();
 2673
 2674        let project = self.project.clone();
 2675        cx.spawn_in(window, async move |workspace, cx| {
 2676            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2677                let (serialize_tasks, remaining_dirty_items) =
 2678                    workspace.update_in(cx, |workspace, window, cx| {
 2679                        let mut remaining_dirty_items = Vec::new();
 2680                        let mut serialize_tasks = Vec::new();
 2681                        for (pane, item) in dirty_items {
 2682                            if let Some(task) = item
 2683                                .to_serializable_item_handle(cx)
 2684                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2685                            {
 2686                                serialize_tasks.push(task);
 2687                            } else {
 2688                                remaining_dirty_items.push((pane, item));
 2689                            }
 2690                        }
 2691                        (serialize_tasks, remaining_dirty_items)
 2692                    })?;
 2693
 2694                futures::future::try_join_all(serialize_tasks).await?;
 2695
 2696                if remaining_dirty_items.len() > 1 {
 2697                    let answer = workspace.update_in(cx, |_, window, cx| {
 2698                        let detail = Pane::file_names_for_prompt(
 2699                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2700                            cx,
 2701                        );
 2702                        window.prompt(
 2703                            PromptLevel::Warning,
 2704                            "Do you want to save all changes in the following files?",
 2705                            Some(&detail),
 2706                            &["Save all", "Discard all", "Cancel"],
 2707                            cx,
 2708                        )
 2709                    })?;
 2710                    match answer.await.log_err() {
 2711                        Some(0) => save_intent = SaveIntent::SaveAll,
 2712                        Some(1) => save_intent = SaveIntent::Skip,
 2713                        Some(2) => return Ok(false),
 2714                        _ => {}
 2715                    }
 2716                }
 2717
 2718                remaining_dirty_items
 2719            } else {
 2720                dirty_items
 2721            };
 2722
 2723            for (pane, item) in dirty_items {
 2724                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2725                    (
 2726                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2727                        item.project_entry_ids(cx),
 2728                    )
 2729                })?;
 2730                if (singleton || !project_entry_ids.is_empty())
 2731                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2732                {
 2733                    return Ok(false);
 2734                }
 2735            }
 2736            Ok(true)
 2737        })
 2738    }
 2739
 2740    pub fn open_workspace_for_paths(
 2741        &mut self,
 2742        replace_current_window: bool,
 2743        paths: Vec<PathBuf>,
 2744        window: &mut Window,
 2745        cx: &mut Context<Self>,
 2746    ) -> Task<Result<()>> {
 2747        let window_handle = window.window_handle().downcast::<Self>();
 2748        let is_remote = self.project.read(cx).is_via_collab();
 2749        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2750        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2751
 2752        let window_to_replace = if replace_current_window {
 2753            window_handle
 2754        } else if is_remote || has_worktree || has_dirty_items {
 2755            None
 2756        } else {
 2757            window_handle
 2758        };
 2759        let app_state = self.app_state.clone();
 2760
 2761        cx.spawn(async move |_, cx| {
 2762            cx.update(|cx| {
 2763                open_paths(
 2764                    &paths,
 2765                    app_state,
 2766                    OpenOptions {
 2767                        replace_window: window_to_replace,
 2768                        ..Default::default()
 2769                    },
 2770                    cx,
 2771                )
 2772            })?
 2773            .await?;
 2774            Ok(())
 2775        })
 2776    }
 2777
 2778    #[allow(clippy::type_complexity)]
 2779    pub fn open_paths(
 2780        &mut self,
 2781        mut abs_paths: Vec<PathBuf>,
 2782        options: OpenOptions,
 2783        pane: Option<WeakEntity<Pane>>,
 2784        window: &mut Window,
 2785        cx: &mut Context<Self>,
 2786    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2787        let fs = self.app_state.fs.clone();
 2788
 2789        // Sort the paths to ensure we add worktrees for parents before their children.
 2790        abs_paths.sort_unstable();
 2791        cx.spawn_in(window, async move |this, cx| {
 2792            let mut tasks = Vec::with_capacity(abs_paths.len());
 2793
 2794            for abs_path in &abs_paths {
 2795                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2796                    OpenVisible::All => Some(true),
 2797                    OpenVisible::None => Some(false),
 2798                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2799                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2800                        Some(None) => Some(true),
 2801                        None => None,
 2802                    },
 2803                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2804                        Some(Some(metadata)) => Some(metadata.is_dir),
 2805                        Some(None) => Some(false),
 2806                        None => None,
 2807                    },
 2808                };
 2809                let project_path = match visible {
 2810                    Some(visible) => match this
 2811                        .update(cx, |this, cx| {
 2812                            Workspace::project_path_for_path(
 2813                                this.project.clone(),
 2814                                abs_path,
 2815                                visible,
 2816                                cx,
 2817                            )
 2818                        })
 2819                        .log_err()
 2820                    {
 2821                        Some(project_path) => project_path.await.log_err(),
 2822                        None => None,
 2823                    },
 2824                    None => None,
 2825                };
 2826
 2827                let this = this.clone();
 2828                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2829                let fs = fs.clone();
 2830                let pane = pane.clone();
 2831                let task = cx.spawn(async move |cx| {
 2832                    let (worktree, project_path) = project_path?;
 2833                    if fs.is_dir(&abs_path).await {
 2834                        this.update(cx, |workspace, cx| {
 2835                            let worktree = worktree.read(cx);
 2836                            let worktree_abs_path = worktree.abs_path();
 2837                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2838                                worktree.root_entry()
 2839                            } else {
 2840                                abs_path
 2841                                    .strip_prefix(worktree_abs_path.as_ref())
 2842                                    .ok()
 2843                                    .and_then(|relative_path| {
 2844                                        let relative_path =
 2845                                            RelPath::new(relative_path, PathStyle::local())
 2846                                                .log_err()?;
 2847                                        worktree.entry_for_path(&relative_path)
 2848                                    })
 2849                            }
 2850                            .map(|entry| entry.id);
 2851                            if let Some(entry_id) = entry_id {
 2852                                workspace.project.update(cx, |_, cx| {
 2853                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2854                                })
 2855                            }
 2856                        })
 2857                        .ok()?;
 2858                        None
 2859                    } else {
 2860                        Some(
 2861                            this.update_in(cx, |this, window, cx| {
 2862                                this.open_path(
 2863                                    project_path,
 2864                                    pane,
 2865                                    options.focus.unwrap_or(true),
 2866                                    window,
 2867                                    cx,
 2868                                )
 2869                            })
 2870                            .ok()?
 2871                            .await,
 2872                        )
 2873                    }
 2874                });
 2875                tasks.push(task);
 2876            }
 2877
 2878            futures::future::join_all(tasks).await
 2879        })
 2880    }
 2881
 2882    pub fn open_resolved_path(
 2883        &mut self,
 2884        path: ResolvedPath,
 2885        window: &mut Window,
 2886        cx: &mut Context<Self>,
 2887    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2888        match path {
 2889            ResolvedPath::ProjectPath { project_path, .. } => {
 2890                self.open_path(project_path, None, true, window, cx)
 2891            }
 2892            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2893                PathBuf::from(path),
 2894                OpenOptions {
 2895                    visible: Some(OpenVisible::None),
 2896                    ..Default::default()
 2897                },
 2898                window,
 2899                cx,
 2900            ),
 2901        }
 2902    }
 2903
 2904    pub fn absolute_path_of_worktree(
 2905        &self,
 2906        worktree_id: WorktreeId,
 2907        cx: &mut Context<Self>,
 2908    ) -> Option<PathBuf> {
 2909        self.project
 2910            .read(cx)
 2911            .worktree_for_id(worktree_id, cx)
 2912            // TODO: use `abs_path` or `root_dir`
 2913            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2914    }
 2915
 2916    fn add_folder_to_project(
 2917        &mut self,
 2918        _: &AddFolderToProject,
 2919        window: &mut Window,
 2920        cx: &mut Context<Self>,
 2921    ) {
 2922        let project = self.project.read(cx);
 2923        if project.is_via_collab() {
 2924            self.show_error(
 2925                &anyhow!("You cannot add folders to someone else's project"),
 2926                cx,
 2927            );
 2928            return;
 2929        }
 2930        let paths = self.prompt_for_open_path(
 2931            PathPromptOptions {
 2932                files: false,
 2933                directories: true,
 2934                multiple: true,
 2935                prompt: None,
 2936            },
 2937            DirectoryLister::Project(self.project.clone()),
 2938            window,
 2939            cx,
 2940        );
 2941        cx.spawn_in(window, async move |this, cx| {
 2942            if let Some(paths) = paths.await.log_err().flatten() {
 2943                let results = this
 2944                    .update_in(cx, |this, window, cx| {
 2945                        this.open_paths(
 2946                            paths,
 2947                            OpenOptions {
 2948                                visible: Some(OpenVisible::All),
 2949                                ..Default::default()
 2950                            },
 2951                            None,
 2952                            window,
 2953                            cx,
 2954                        )
 2955                    })?
 2956                    .await;
 2957                for result in results.into_iter().flatten() {
 2958                    result.log_err();
 2959                }
 2960            }
 2961            anyhow::Ok(())
 2962        })
 2963        .detach_and_log_err(cx);
 2964    }
 2965
 2966    pub fn project_path_for_path(
 2967        project: Entity<Project>,
 2968        abs_path: &Path,
 2969        visible: bool,
 2970        cx: &mut App,
 2971    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2972        let entry = project.update(cx, |project, cx| {
 2973            project.find_or_create_worktree(abs_path, visible, cx)
 2974        });
 2975        cx.spawn(async move |cx| {
 2976            let (worktree, path) = entry.await?;
 2977            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2978            Ok((
 2979                worktree,
 2980                ProjectPath {
 2981                    worktree_id,
 2982                    path: path,
 2983                },
 2984            ))
 2985        })
 2986    }
 2987
 2988    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2989        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2990    }
 2991
 2992    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2993        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2994    }
 2995
 2996    pub fn items_of_type<'a, T: Item>(
 2997        &'a self,
 2998        cx: &'a App,
 2999    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3000        self.panes
 3001            .iter()
 3002            .flat_map(|pane| pane.read(cx).items_of_type())
 3003    }
 3004
 3005    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3006        self.active_pane().read(cx).active_item()
 3007    }
 3008
 3009    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3010        let item = self.active_item(cx)?;
 3011        item.to_any_view().downcast::<I>().ok()
 3012    }
 3013
 3014    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3015        self.active_item(cx).and_then(|item| item.project_path(cx))
 3016    }
 3017
 3018    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3019        self.recent_navigation_history_iter(cx)
 3020            .filter_map(|(path, abs_path)| {
 3021                let worktree = self
 3022                    .project
 3023                    .read(cx)
 3024                    .worktree_for_id(path.worktree_id, cx)?;
 3025                if worktree.read(cx).is_visible() {
 3026                    abs_path
 3027                } else {
 3028                    None
 3029                }
 3030            })
 3031            .next()
 3032    }
 3033
 3034    pub fn save_active_item(
 3035        &mut self,
 3036        save_intent: SaveIntent,
 3037        window: &mut Window,
 3038        cx: &mut App,
 3039    ) -> Task<Result<()>> {
 3040        let project = self.project.clone();
 3041        let pane = self.active_pane();
 3042        let item = pane.read(cx).active_item();
 3043        let pane = pane.downgrade();
 3044
 3045        window.spawn(cx, async move |cx| {
 3046            if let Some(item) = item {
 3047                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3048                    .await
 3049                    .map(|_| ())
 3050            } else {
 3051                Ok(())
 3052            }
 3053        })
 3054    }
 3055
 3056    pub fn close_inactive_items_and_panes(
 3057        &mut self,
 3058        action: &CloseInactiveTabsAndPanes,
 3059        window: &mut Window,
 3060        cx: &mut Context<Self>,
 3061    ) {
 3062        if let Some(task) = self.close_all_internal(
 3063            true,
 3064            action.save_intent.unwrap_or(SaveIntent::Close),
 3065            window,
 3066            cx,
 3067        ) {
 3068            task.detach_and_log_err(cx)
 3069        }
 3070    }
 3071
 3072    pub fn close_all_items_and_panes(
 3073        &mut self,
 3074        action: &CloseAllItemsAndPanes,
 3075        window: &mut Window,
 3076        cx: &mut Context<Self>,
 3077    ) {
 3078        if let Some(task) = self.close_all_internal(
 3079            false,
 3080            action.save_intent.unwrap_or(SaveIntent::Close),
 3081            window,
 3082            cx,
 3083        ) {
 3084            task.detach_and_log_err(cx)
 3085        }
 3086    }
 3087
 3088    fn close_all_internal(
 3089        &mut self,
 3090        retain_active_pane: bool,
 3091        save_intent: SaveIntent,
 3092        window: &mut Window,
 3093        cx: &mut Context<Self>,
 3094    ) -> Option<Task<Result<()>>> {
 3095        let current_pane = self.active_pane();
 3096
 3097        let mut tasks = Vec::new();
 3098
 3099        if retain_active_pane {
 3100            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3101                pane.close_other_items(
 3102                    &CloseOtherItems {
 3103                        save_intent: None,
 3104                        close_pinned: false,
 3105                    },
 3106                    None,
 3107                    window,
 3108                    cx,
 3109                )
 3110            });
 3111
 3112            tasks.push(current_pane_close);
 3113        }
 3114
 3115        for pane in self.panes() {
 3116            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3117                continue;
 3118            }
 3119
 3120            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3121                pane.close_all_items(
 3122                    &CloseAllItems {
 3123                        save_intent: Some(save_intent),
 3124                        close_pinned: false,
 3125                    },
 3126                    window,
 3127                    cx,
 3128                )
 3129            });
 3130
 3131            tasks.push(close_pane_items)
 3132        }
 3133
 3134        if tasks.is_empty() {
 3135            None
 3136        } else {
 3137            Some(cx.spawn_in(window, async move |_, _| {
 3138                for task in tasks {
 3139                    task.await?
 3140                }
 3141                Ok(())
 3142            }))
 3143        }
 3144    }
 3145
 3146    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3147        self.dock_at_position(position).read(cx).is_open()
 3148    }
 3149
 3150    pub fn toggle_dock(
 3151        &mut self,
 3152        dock_side: DockPosition,
 3153        window: &mut Window,
 3154        cx: &mut Context<Self>,
 3155    ) {
 3156        let mut focus_center = false;
 3157        let mut reveal_dock = false;
 3158
 3159        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3160        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3161        if was_visible {
 3162            self.save_open_dock_positions(cx);
 3163        }
 3164
 3165        let dock = self.dock_at_position(dock_side);
 3166        dock.update(cx, |dock, cx| {
 3167            dock.set_open(!was_visible, window, cx);
 3168
 3169            if dock.active_panel().is_none() {
 3170                let Some(panel_ix) = dock
 3171                    .first_enabled_panel_idx(cx)
 3172                    .log_with_level(log::Level::Info)
 3173                else {
 3174                    return;
 3175                };
 3176                dock.activate_panel(panel_ix, window, cx);
 3177            }
 3178
 3179            if let Some(active_panel) = dock.active_panel() {
 3180                if was_visible {
 3181                    if active_panel
 3182                        .panel_focus_handle(cx)
 3183                        .contains_focused(window, cx)
 3184                    {
 3185                        focus_center = true;
 3186                    }
 3187                } else {
 3188                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3189                    window.focus(focus_handle, cx);
 3190                    reveal_dock = true;
 3191                }
 3192            }
 3193        });
 3194
 3195        if reveal_dock {
 3196            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3197        }
 3198
 3199        if focus_center {
 3200            self.active_pane
 3201                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3202        }
 3203
 3204        cx.notify();
 3205        self.serialize_workspace(window, cx);
 3206    }
 3207
 3208    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3209        self.all_docks().into_iter().find(|&dock| {
 3210            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3211        })
 3212    }
 3213
 3214    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3215        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3216            self.save_open_dock_positions(cx);
 3217            dock.update(cx, |dock, cx| {
 3218                dock.set_open(false, window, cx);
 3219            });
 3220            return true;
 3221        }
 3222        false
 3223    }
 3224
 3225    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3226        self.save_open_dock_positions(cx);
 3227        for dock in self.all_docks() {
 3228            dock.update(cx, |dock, cx| {
 3229                dock.set_open(false, window, cx);
 3230            });
 3231        }
 3232
 3233        cx.focus_self(window);
 3234        cx.notify();
 3235        self.serialize_workspace(window, cx);
 3236    }
 3237
 3238    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3239        self.all_docks()
 3240            .into_iter()
 3241            .filter_map(|dock| {
 3242                let dock_ref = dock.read(cx);
 3243                if dock_ref.is_open() {
 3244                    Some(dock_ref.position())
 3245                } else {
 3246                    None
 3247                }
 3248            })
 3249            .collect()
 3250    }
 3251
 3252    /// Saves the positions of currently open docks.
 3253    ///
 3254    /// Updates `last_open_dock_positions` with positions of all currently open
 3255    /// docks, to later be restored by the 'Toggle All Docks' action.
 3256    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3257        let open_dock_positions = self.get_open_dock_positions(cx);
 3258        if !open_dock_positions.is_empty() {
 3259            self.last_open_dock_positions = open_dock_positions;
 3260        }
 3261    }
 3262
 3263    /// Toggles all docks between open and closed states.
 3264    ///
 3265    /// If any docks are open, closes all and remembers their positions. If all
 3266    /// docks are closed, restores the last remembered dock configuration.
 3267    fn toggle_all_docks(
 3268        &mut self,
 3269        _: &ToggleAllDocks,
 3270        window: &mut Window,
 3271        cx: &mut Context<Self>,
 3272    ) {
 3273        let open_dock_positions = self.get_open_dock_positions(cx);
 3274
 3275        if !open_dock_positions.is_empty() {
 3276            self.close_all_docks(window, cx);
 3277        } else if !self.last_open_dock_positions.is_empty() {
 3278            self.restore_last_open_docks(window, cx);
 3279        }
 3280    }
 3281
 3282    /// Reopens docks from the most recently remembered configuration.
 3283    ///
 3284    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3285    /// and clears the stored positions.
 3286    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3287        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3288
 3289        for position in positions_to_open {
 3290            let dock = self.dock_at_position(position);
 3291            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3292        }
 3293
 3294        cx.focus_self(window);
 3295        cx.notify();
 3296        self.serialize_workspace(window, cx);
 3297    }
 3298
 3299    /// Transfer focus to the panel of the given type.
 3300    pub fn focus_panel<T: Panel>(
 3301        &mut self,
 3302        window: &mut Window,
 3303        cx: &mut Context<Self>,
 3304    ) -> Option<Entity<T>> {
 3305        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3306        panel.to_any().downcast().ok()
 3307    }
 3308
 3309    /// Focus the panel of the given type if it isn't already focused. If it is
 3310    /// already focused, then transfer focus back to the workspace center.
 3311    pub fn toggle_panel_focus<T: Panel>(
 3312        &mut self,
 3313        window: &mut Window,
 3314        cx: &mut Context<Self>,
 3315    ) -> bool {
 3316        let mut did_focus_panel = false;
 3317        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3318            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3319            did_focus_panel
 3320        });
 3321        did_focus_panel
 3322    }
 3323
 3324    pub fn activate_panel_for_proto_id(
 3325        &mut self,
 3326        panel_id: PanelId,
 3327        window: &mut Window,
 3328        cx: &mut Context<Self>,
 3329    ) -> Option<Arc<dyn PanelHandle>> {
 3330        let mut panel = None;
 3331        for dock in self.all_docks() {
 3332            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3333                panel = dock.update(cx, |dock, cx| {
 3334                    dock.activate_panel(panel_index, window, cx);
 3335                    dock.set_open(true, window, cx);
 3336                    dock.active_panel().cloned()
 3337                });
 3338                break;
 3339            }
 3340        }
 3341
 3342        if panel.is_some() {
 3343            cx.notify();
 3344            self.serialize_workspace(window, cx);
 3345        }
 3346
 3347        panel
 3348    }
 3349
 3350    /// Focus or unfocus the given panel type, depending on the given callback.
 3351    fn focus_or_unfocus_panel<T: Panel>(
 3352        &mut self,
 3353        window: &mut Window,
 3354        cx: &mut Context<Self>,
 3355        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3356    ) -> Option<Arc<dyn PanelHandle>> {
 3357        let mut result_panel = None;
 3358        let mut serialize = false;
 3359        for dock in self.all_docks() {
 3360            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3361                let mut focus_center = false;
 3362                let panel = dock.update(cx, |dock, cx| {
 3363                    dock.activate_panel(panel_index, window, cx);
 3364
 3365                    let panel = dock.active_panel().cloned();
 3366                    if let Some(panel) = panel.as_ref() {
 3367                        if should_focus(&**panel, window, cx) {
 3368                            dock.set_open(true, window, cx);
 3369                            panel.panel_focus_handle(cx).focus(window, cx);
 3370                        } else {
 3371                            focus_center = true;
 3372                        }
 3373                    }
 3374                    panel
 3375                });
 3376
 3377                if focus_center {
 3378                    self.active_pane
 3379                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3380                }
 3381
 3382                result_panel = panel;
 3383                serialize = true;
 3384                break;
 3385            }
 3386        }
 3387
 3388        if serialize {
 3389            self.serialize_workspace(window, cx);
 3390        }
 3391
 3392        cx.notify();
 3393        result_panel
 3394    }
 3395
 3396    /// Open the panel of the given type
 3397    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3398        for dock in self.all_docks() {
 3399            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3400                dock.update(cx, |dock, cx| {
 3401                    dock.activate_panel(panel_index, window, cx);
 3402                    dock.set_open(true, window, cx);
 3403                });
 3404            }
 3405        }
 3406    }
 3407
 3408    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3409        for dock in self.all_docks().iter() {
 3410            dock.update(cx, |dock, cx| {
 3411                if dock.panel::<T>().is_some() {
 3412                    dock.set_open(false, window, cx)
 3413                }
 3414            })
 3415        }
 3416    }
 3417
 3418    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3419        self.all_docks()
 3420            .iter()
 3421            .find_map(|dock| dock.read(cx).panel::<T>())
 3422    }
 3423
 3424    fn dismiss_zoomed_items_to_reveal(
 3425        &mut self,
 3426        dock_to_reveal: Option<DockPosition>,
 3427        window: &mut Window,
 3428        cx: &mut Context<Self>,
 3429    ) {
 3430        // If a center pane is zoomed, unzoom it.
 3431        for pane in &self.panes {
 3432            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3433                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3434            }
 3435        }
 3436
 3437        // If another dock is zoomed, hide it.
 3438        let mut focus_center = false;
 3439        for dock in self.all_docks() {
 3440            dock.update(cx, |dock, cx| {
 3441                if Some(dock.position()) != dock_to_reveal
 3442                    && let Some(panel) = dock.active_panel()
 3443                    && panel.is_zoomed(window, cx)
 3444                {
 3445                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3446                    dock.set_open(false, window, cx);
 3447                }
 3448            });
 3449        }
 3450
 3451        if focus_center {
 3452            self.active_pane
 3453                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3454        }
 3455
 3456        if self.zoomed_position != dock_to_reveal {
 3457            self.zoomed = None;
 3458            self.zoomed_position = None;
 3459            cx.emit(Event::ZoomChanged);
 3460        }
 3461
 3462        cx.notify();
 3463    }
 3464
 3465    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3466        let pane = cx.new(|cx| {
 3467            let mut pane = Pane::new(
 3468                self.weak_handle(),
 3469                self.project.clone(),
 3470                self.pane_history_timestamp.clone(),
 3471                None,
 3472                NewFile.boxed_clone(),
 3473                true,
 3474                window,
 3475                cx,
 3476            );
 3477            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3478            pane
 3479        });
 3480        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3481            .detach();
 3482        self.panes.push(pane.clone());
 3483
 3484        window.focus(&pane.focus_handle(cx), cx);
 3485
 3486        cx.emit(Event::PaneAdded(pane.clone()));
 3487        pane
 3488    }
 3489
 3490    pub fn add_item_to_center(
 3491        &mut self,
 3492        item: Box<dyn ItemHandle>,
 3493        window: &mut Window,
 3494        cx: &mut Context<Self>,
 3495    ) -> bool {
 3496        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3497            if let Some(center_pane) = center_pane.upgrade() {
 3498                center_pane.update(cx, |pane, cx| {
 3499                    pane.add_item(item, true, true, None, window, cx)
 3500                });
 3501                true
 3502            } else {
 3503                false
 3504            }
 3505        } else {
 3506            false
 3507        }
 3508    }
 3509
 3510    pub fn add_item_to_active_pane(
 3511        &mut self,
 3512        item: Box<dyn ItemHandle>,
 3513        destination_index: Option<usize>,
 3514        focus_item: bool,
 3515        window: &mut Window,
 3516        cx: &mut App,
 3517    ) {
 3518        self.add_item(
 3519            self.active_pane.clone(),
 3520            item,
 3521            destination_index,
 3522            false,
 3523            focus_item,
 3524            window,
 3525            cx,
 3526        )
 3527    }
 3528
 3529    pub fn add_item(
 3530        &mut self,
 3531        pane: Entity<Pane>,
 3532        item: Box<dyn ItemHandle>,
 3533        destination_index: Option<usize>,
 3534        activate_pane: bool,
 3535        focus_item: bool,
 3536        window: &mut Window,
 3537        cx: &mut App,
 3538    ) {
 3539        pane.update(cx, |pane, cx| {
 3540            pane.add_item(
 3541                item,
 3542                activate_pane,
 3543                focus_item,
 3544                destination_index,
 3545                window,
 3546                cx,
 3547            )
 3548        });
 3549    }
 3550
 3551    pub fn split_item(
 3552        &mut self,
 3553        split_direction: SplitDirection,
 3554        item: Box<dyn ItemHandle>,
 3555        window: &mut Window,
 3556        cx: &mut Context<Self>,
 3557    ) {
 3558        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3559        self.add_item(new_pane, item, None, true, true, window, cx);
 3560    }
 3561
 3562    pub fn open_abs_path(
 3563        &mut self,
 3564        abs_path: PathBuf,
 3565        options: OpenOptions,
 3566        window: &mut Window,
 3567        cx: &mut Context<Self>,
 3568    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3569        cx.spawn_in(window, async move |workspace, cx| {
 3570            let open_paths_task_result = workspace
 3571                .update_in(cx, |workspace, window, cx| {
 3572                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3573                })
 3574                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3575                .await;
 3576            anyhow::ensure!(
 3577                open_paths_task_result.len() == 1,
 3578                "open abs path {abs_path:?} task returned incorrect number of results"
 3579            );
 3580            match open_paths_task_result
 3581                .into_iter()
 3582                .next()
 3583                .expect("ensured single task result")
 3584            {
 3585                Some(open_result) => {
 3586                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3587                }
 3588                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3589            }
 3590        })
 3591    }
 3592
 3593    pub fn split_abs_path(
 3594        &mut self,
 3595        abs_path: PathBuf,
 3596        visible: bool,
 3597        window: &mut Window,
 3598        cx: &mut Context<Self>,
 3599    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3600        let project_path_task =
 3601            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3602        cx.spawn_in(window, async move |this, cx| {
 3603            let (_, path) = project_path_task.await?;
 3604            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3605                .await
 3606        })
 3607    }
 3608
 3609    pub fn open_path(
 3610        &mut self,
 3611        path: impl Into<ProjectPath>,
 3612        pane: Option<WeakEntity<Pane>>,
 3613        focus_item: bool,
 3614        window: &mut Window,
 3615        cx: &mut App,
 3616    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3617        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3618    }
 3619
 3620    pub fn open_path_preview(
 3621        &mut self,
 3622        path: impl Into<ProjectPath>,
 3623        pane: Option<WeakEntity<Pane>>,
 3624        focus_item: bool,
 3625        allow_preview: bool,
 3626        activate: bool,
 3627        window: &mut Window,
 3628        cx: &mut App,
 3629    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3630        let pane = pane.unwrap_or_else(|| {
 3631            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3632                self.panes
 3633                    .first()
 3634                    .expect("There must be an active pane")
 3635                    .downgrade()
 3636            })
 3637        });
 3638
 3639        let project_path = path.into();
 3640        let task = self.load_path(project_path.clone(), window, cx);
 3641        window.spawn(cx, async move |cx| {
 3642            let (project_entry_id, build_item) = task.await?;
 3643
 3644            pane.update_in(cx, |pane, window, cx| {
 3645                pane.open_item(
 3646                    project_entry_id,
 3647                    project_path,
 3648                    focus_item,
 3649                    allow_preview,
 3650                    activate,
 3651                    None,
 3652                    window,
 3653                    cx,
 3654                    build_item,
 3655                )
 3656            })
 3657        })
 3658    }
 3659
 3660    pub fn split_path(
 3661        &mut self,
 3662        path: impl Into<ProjectPath>,
 3663        window: &mut Window,
 3664        cx: &mut Context<Self>,
 3665    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3666        self.split_path_preview(path, false, None, window, cx)
 3667    }
 3668
 3669    pub fn split_path_preview(
 3670        &mut self,
 3671        path: impl Into<ProjectPath>,
 3672        allow_preview: bool,
 3673        split_direction: Option<SplitDirection>,
 3674        window: &mut Window,
 3675        cx: &mut Context<Self>,
 3676    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3677        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3678            self.panes
 3679                .first()
 3680                .expect("There must be an active pane")
 3681                .downgrade()
 3682        });
 3683
 3684        if let Member::Pane(center_pane) = &self.center.root
 3685            && center_pane.read(cx).items_len() == 0
 3686        {
 3687            return self.open_path(path, Some(pane), true, window, cx);
 3688        }
 3689
 3690        let project_path = path.into();
 3691        let task = self.load_path(project_path.clone(), window, cx);
 3692        cx.spawn_in(window, async move |this, cx| {
 3693            let (project_entry_id, build_item) = task.await?;
 3694            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3695                let pane = pane.upgrade()?;
 3696                let new_pane = this.split_pane(
 3697                    pane,
 3698                    split_direction.unwrap_or(SplitDirection::Right),
 3699                    window,
 3700                    cx,
 3701                );
 3702                new_pane.update(cx, |new_pane, cx| {
 3703                    Some(new_pane.open_item(
 3704                        project_entry_id,
 3705                        project_path,
 3706                        true,
 3707                        allow_preview,
 3708                        true,
 3709                        None,
 3710                        window,
 3711                        cx,
 3712                        build_item,
 3713                    ))
 3714                })
 3715            })
 3716            .map(|option| option.context("pane was dropped"))?
 3717        })
 3718    }
 3719
 3720    fn load_path(
 3721        &mut self,
 3722        path: ProjectPath,
 3723        window: &mut Window,
 3724        cx: &mut App,
 3725    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3726        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3727        registry.open_path(self.project(), &path, window, cx)
 3728    }
 3729
 3730    pub fn find_project_item<T>(
 3731        &self,
 3732        pane: &Entity<Pane>,
 3733        project_item: &Entity<T::Item>,
 3734        cx: &App,
 3735    ) -> Option<Entity<T>>
 3736    where
 3737        T: ProjectItem,
 3738    {
 3739        use project::ProjectItem as _;
 3740        let project_item = project_item.read(cx);
 3741        let entry_id = project_item.entry_id(cx);
 3742        let project_path = project_item.project_path(cx);
 3743
 3744        let mut item = None;
 3745        if let Some(entry_id) = entry_id {
 3746            item = pane.read(cx).item_for_entry(entry_id, cx);
 3747        }
 3748        if item.is_none()
 3749            && let Some(project_path) = project_path
 3750        {
 3751            item = pane.read(cx).item_for_path(project_path, cx);
 3752        }
 3753
 3754        item.and_then(|item| item.downcast::<T>())
 3755    }
 3756
 3757    pub fn is_project_item_open<T>(
 3758        &self,
 3759        pane: &Entity<Pane>,
 3760        project_item: &Entity<T::Item>,
 3761        cx: &App,
 3762    ) -> bool
 3763    where
 3764        T: ProjectItem,
 3765    {
 3766        self.find_project_item::<T>(pane, project_item, cx)
 3767            .is_some()
 3768    }
 3769
 3770    pub fn open_project_item<T>(
 3771        &mut self,
 3772        pane: Entity<Pane>,
 3773        project_item: Entity<T::Item>,
 3774        activate_pane: bool,
 3775        focus_item: bool,
 3776        keep_old_preview: bool,
 3777        allow_new_preview: bool,
 3778        window: &mut Window,
 3779        cx: &mut Context<Self>,
 3780    ) -> Entity<T>
 3781    where
 3782        T: ProjectItem,
 3783    {
 3784        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3785
 3786        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3787            if !keep_old_preview
 3788                && let Some(old_id) = old_item_id
 3789                && old_id != item.item_id()
 3790            {
 3791                // switching to a different item, so unpreview old active item
 3792                pane.update(cx, |pane, _| {
 3793                    pane.unpreview_item_if_preview(old_id);
 3794                });
 3795            }
 3796
 3797            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3798            if !allow_new_preview {
 3799                pane.update(cx, |pane, _| {
 3800                    pane.unpreview_item_if_preview(item.item_id());
 3801                });
 3802            }
 3803            return item;
 3804        }
 3805
 3806        let item = pane.update(cx, |pane, cx| {
 3807            cx.new(|cx| {
 3808                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3809            })
 3810        });
 3811        let mut destination_index = None;
 3812        pane.update(cx, |pane, cx| {
 3813            if !keep_old_preview && let Some(old_id) = old_item_id {
 3814                pane.unpreview_item_if_preview(old_id);
 3815            }
 3816            if allow_new_preview {
 3817                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3818            }
 3819        });
 3820
 3821        self.add_item(
 3822            pane,
 3823            Box::new(item.clone()),
 3824            destination_index,
 3825            activate_pane,
 3826            focus_item,
 3827            window,
 3828            cx,
 3829        );
 3830        item
 3831    }
 3832
 3833    pub fn open_shared_screen(
 3834        &mut self,
 3835        peer_id: PeerId,
 3836        window: &mut Window,
 3837        cx: &mut Context<Self>,
 3838    ) {
 3839        if let Some(shared_screen) =
 3840            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3841        {
 3842            self.active_pane.update(cx, |pane, cx| {
 3843                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3844            });
 3845        }
 3846    }
 3847
 3848    pub fn activate_item(
 3849        &mut self,
 3850        item: &dyn ItemHandle,
 3851        activate_pane: bool,
 3852        focus_item: bool,
 3853        window: &mut Window,
 3854        cx: &mut App,
 3855    ) -> bool {
 3856        let result = self.panes.iter().find_map(|pane| {
 3857            pane.read(cx)
 3858                .index_for_item(item)
 3859                .map(|ix| (pane.clone(), ix))
 3860        });
 3861        if let Some((pane, ix)) = result {
 3862            pane.update(cx, |pane, cx| {
 3863                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3864            });
 3865            true
 3866        } else {
 3867            false
 3868        }
 3869    }
 3870
 3871    fn activate_pane_at_index(
 3872        &mut self,
 3873        action: &ActivatePane,
 3874        window: &mut Window,
 3875        cx: &mut Context<Self>,
 3876    ) {
 3877        let panes = self.center.panes();
 3878        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3879            window.focus(&pane.focus_handle(cx), cx);
 3880        } else {
 3881            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3882                .detach();
 3883        }
 3884    }
 3885
 3886    fn move_item_to_pane_at_index(
 3887        &mut self,
 3888        action: &MoveItemToPane,
 3889        window: &mut Window,
 3890        cx: &mut Context<Self>,
 3891    ) {
 3892        let panes = self.center.panes();
 3893        let destination = match panes.get(action.destination) {
 3894            Some(&destination) => destination.clone(),
 3895            None => {
 3896                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3897                    return;
 3898                }
 3899                let direction = SplitDirection::Right;
 3900                let split_off_pane = self
 3901                    .find_pane_in_direction(direction, cx)
 3902                    .unwrap_or_else(|| self.active_pane.clone());
 3903                let new_pane = self.add_pane(window, cx);
 3904                if self
 3905                    .center
 3906                    .split(&split_off_pane, &new_pane, direction, cx)
 3907                    .log_err()
 3908                    .is_none()
 3909                {
 3910                    return;
 3911                };
 3912                new_pane
 3913            }
 3914        };
 3915
 3916        if action.clone {
 3917            if self
 3918                .active_pane
 3919                .read(cx)
 3920                .active_item()
 3921                .is_some_and(|item| item.can_split(cx))
 3922            {
 3923                clone_active_item(
 3924                    self.database_id(),
 3925                    &self.active_pane,
 3926                    &destination,
 3927                    action.focus,
 3928                    window,
 3929                    cx,
 3930                );
 3931                return;
 3932            }
 3933        }
 3934        move_active_item(
 3935            &self.active_pane,
 3936            &destination,
 3937            action.focus,
 3938            true,
 3939            window,
 3940            cx,
 3941        )
 3942    }
 3943
 3944    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3945        let panes = self.center.panes();
 3946        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3947            let next_ix = (ix + 1) % panes.len();
 3948            let next_pane = panes[next_ix].clone();
 3949            window.focus(&next_pane.focus_handle(cx), cx);
 3950        }
 3951    }
 3952
 3953    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3954        let panes = self.center.panes();
 3955        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3956            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3957            let prev_pane = panes[prev_ix].clone();
 3958            window.focus(&prev_pane.focus_handle(cx), cx);
 3959        }
 3960    }
 3961
 3962    pub fn activate_pane_in_direction(
 3963        &mut self,
 3964        direction: SplitDirection,
 3965        window: &mut Window,
 3966        cx: &mut App,
 3967    ) {
 3968        use ActivateInDirectionTarget as Target;
 3969        enum Origin {
 3970            LeftDock,
 3971            RightDock,
 3972            BottomDock,
 3973            Center,
 3974        }
 3975
 3976        let origin: Origin = [
 3977            (&self.left_dock, Origin::LeftDock),
 3978            (&self.right_dock, Origin::RightDock),
 3979            (&self.bottom_dock, Origin::BottomDock),
 3980        ]
 3981        .into_iter()
 3982        .find_map(|(dock, origin)| {
 3983            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3984                Some(origin)
 3985            } else {
 3986                None
 3987            }
 3988        })
 3989        .unwrap_or(Origin::Center);
 3990
 3991        let get_last_active_pane = || {
 3992            let pane = self
 3993                .last_active_center_pane
 3994                .clone()
 3995                .unwrap_or_else(|| {
 3996                    self.panes
 3997                        .first()
 3998                        .expect("There must be an active pane")
 3999                        .downgrade()
 4000                })
 4001                .upgrade()?;
 4002            (pane.read(cx).items_len() != 0).then_some(pane)
 4003        };
 4004
 4005        let try_dock =
 4006            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4007
 4008        let target = match (origin, direction) {
 4009            // We're in the center, so we first try to go to a different pane,
 4010            // otherwise try to go to a dock.
 4011            (Origin::Center, direction) => {
 4012                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4013                    Some(Target::Pane(pane))
 4014                } else {
 4015                    match direction {
 4016                        SplitDirection::Up => None,
 4017                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4018                        SplitDirection::Left => try_dock(&self.left_dock),
 4019                        SplitDirection::Right => try_dock(&self.right_dock),
 4020                    }
 4021                }
 4022            }
 4023
 4024            (Origin::LeftDock, SplitDirection::Right) => {
 4025                if let Some(last_active_pane) = get_last_active_pane() {
 4026                    Some(Target::Pane(last_active_pane))
 4027                } else {
 4028                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4029                }
 4030            }
 4031
 4032            (Origin::LeftDock, SplitDirection::Down)
 4033            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4034
 4035            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4036            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4037            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4038
 4039            (Origin::RightDock, SplitDirection::Left) => {
 4040                if let Some(last_active_pane) = get_last_active_pane() {
 4041                    Some(Target::Pane(last_active_pane))
 4042                } else {
 4043                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4044                }
 4045            }
 4046
 4047            _ => None,
 4048        };
 4049
 4050        match target {
 4051            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4052                let pane = pane.read(cx);
 4053                if let Some(item) = pane.active_item() {
 4054                    item.item_focus_handle(cx).focus(window, cx);
 4055                } else {
 4056                    log::error!(
 4057                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4058                    );
 4059                }
 4060            }
 4061            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4062                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4063                window.defer(cx, move |window, cx| {
 4064                    let dock = dock.read(cx);
 4065                    if let Some(panel) = dock.active_panel() {
 4066                        panel.panel_focus_handle(cx).focus(window, cx);
 4067                    } else {
 4068                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4069                    }
 4070                })
 4071            }
 4072            None => {}
 4073        }
 4074    }
 4075
 4076    pub fn move_item_to_pane_in_direction(
 4077        &mut self,
 4078        action: &MoveItemToPaneInDirection,
 4079        window: &mut Window,
 4080        cx: &mut Context<Self>,
 4081    ) {
 4082        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4083            Some(destination) => destination,
 4084            None => {
 4085                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4086                    return;
 4087                }
 4088                let new_pane = self.add_pane(window, cx);
 4089                if self
 4090                    .center
 4091                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4092                    .log_err()
 4093                    .is_none()
 4094                {
 4095                    return;
 4096                };
 4097                new_pane
 4098            }
 4099        };
 4100
 4101        if action.clone {
 4102            if self
 4103                .active_pane
 4104                .read(cx)
 4105                .active_item()
 4106                .is_some_and(|item| item.can_split(cx))
 4107            {
 4108                clone_active_item(
 4109                    self.database_id(),
 4110                    &self.active_pane,
 4111                    &destination,
 4112                    action.focus,
 4113                    window,
 4114                    cx,
 4115                );
 4116                return;
 4117            }
 4118        }
 4119        move_active_item(
 4120            &self.active_pane,
 4121            &destination,
 4122            action.focus,
 4123            true,
 4124            window,
 4125            cx,
 4126        );
 4127    }
 4128
 4129    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4130        self.center.bounding_box_for_pane(pane)
 4131    }
 4132
 4133    pub fn find_pane_in_direction(
 4134        &mut self,
 4135        direction: SplitDirection,
 4136        cx: &App,
 4137    ) -> Option<Entity<Pane>> {
 4138        self.center
 4139            .find_pane_in_direction(&self.active_pane, direction, cx)
 4140            .cloned()
 4141    }
 4142
 4143    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4144        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4145            self.center.swap(&self.active_pane, &to, cx);
 4146            cx.notify();
 4147        }
 4148    }
 4149
 4150    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4151        if self
 4152            .center
 4153            .move_to_border(&self.active_pane, direction, cx)
 4154            .unwrap()
 4155        {
 4156            cx.notify();
 4157        }
 4158    }
 4159
 4160    pub fn resize_pane(
 4161        &mut self,
 4162        axis: gpui::Axis,
 4163        amount: Pixels,
 4164        window: &mut Window,
 4165        cx: &mut Context<Self>,
 4166    ) {
 4167        let docks = self.all_docks();
 4168        let active_dock = docks
 4169            .into_iter()
 4170            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4171
 4172        if let Some(dock) = active_dock {
 4173            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4174                return;
 4175            };
 4176            match dock.read(cx).position() {
 4177                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4178                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4179                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4180            }
 4181        } else {
 4182            self.center
 4183                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4184        }
 4185        cx.notify();
 4186    }
 4187
 4188    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4189        self.center.reset_pane_sizes(cx);
 4190        cx.notify();
 4191    }
 4192
 4193    fn handle_pane_focused(
 4194        &mut self,
 4195        pane: Entity<Pane>,
 4196        window: &mut Window,
 4197        cx: &mut Context<Self>,
 4198    ) {
 4199        // This is explicitly hoisted out of the following check for pane identity as
 4200        // terminal panel panes are not registered as a center panes.
 4201        self.status_bar.update(cx, |status_bar, cx| {
 4202            status_bar.set_active_pane(&pane, window, cx);
 4203        });
 4204        if self.active_pane != pane {
 4205            self.set_active_pane(&pane, window, cx);
 4206        }
 4207
 4208        if self.last_active_center_pane.is_none() {
 4209            self.last_active_center_pane = Some(pane.downgrade());
 4210        }
 4211
 4212        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4213        if pane.read(cx).is_zoomed() {
 4214            self.zoomed = Some(pane.downgrade().into());
 4215        } else {
 4216            self.zoomed = None;
 4217        }
 4218        self.zoomed_position = None;
 4219        cx.emit(Event::ZoomChanged);
 4220        self.update_active_view_for_followers(window, cx);
 4221        pane.update(cx, |pane, _| {
 4222            pane.track_alternate_file_items();
 4223        });
 4224
 4225        cx.notify();
 4226    }
 4227
 4228    fn set_active_pane(
 4229        &mut self,
 4230        pane: &Entity<Pane>,
 4231        window: &mut Window,
 4232        cx: &mut Context<Self>,
 4233    ) {
 4234        self.active_pane = pane.clone();
 4235        self.active_item_path_changed(window, cx);
 4236        self.last_active_center_pane = Some(pane.downgrade());
 4237    }
 4238
 4239    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4240        self.update_active_view_for_followers(window, cx);
 4241    }
 4242
 4243    fn handle_pane_event(
 4244        &mut self,
 4245        pane: &Entity<Pane>,
 4246        event: &pane::Event,
 4247        window: &mut Window,
 4248        cx: &mut Context<Self>,
 4249    ) {
 4250        let mut serialize_workspace = true;
 4251        match event {
 4252            pane::Event::AddItem { item } => {
 4253                item.added_to_pane(self, pane.clone(), window, cx);
 4254                cx.emit(Event::ItemAdded {
 4255                    item: item.boxed_clone(),
 4256                });
 4257            }
 4258            pane::Event::Split {
 4259                direction,
 4260                clone_active_item,
 4261            } => {
 4262                if *clone_active_item {
 4263                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4264                        .detach();
 4265                } else {
 4266                    self.split_and_move(pane.clone(), *direction, window, cx);
 4267                }
 4268            }
 4269            pane::Event::JoinIntoNext => {
 4270                self.join_pane_into_next(pane.clone(), window, cx);
 4271            }
 4272            pane::Event::JoinAll => {
 4273                self.join_all_panes(window, cx);
 4274            }
 4275            pane::Event::Remove { focus_on_pane } => {
 4276                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4277            }
 4278            pane::Event::ActivateItem {
 4279                local,
 4280                focus_changed,
 4281            } => {
 4282                window.invalidate_character_coordinates();
 4283
 4284                pane.update(cx, |pane, _| {
 4285                    pane.track_alternate_file_items();
 4286                });
 4287                if *local {
 4288                    self.unfollow_in_pane(pane, window, cx);
 4289                }
 4290                serialize_workspace = *focus_changed || pane != self.active_pane();
 4291                if pane == self.active_pane() {
 4292                    self.active_item_path_changed(window, cx);
 4293                    self.update_active_view_for_followers(window, cx);
 4294                } else if *local {
 4295                    self.set_active_pane(pane, window, cx);
 4296                }
 4297            }
 4298            pane::Event::UserSavedItem { item, save_intent } => {
 4299                cx.emit(Event::UserSavedItem {
 4300                    pane: pane.downgrade(),
 4301                    item: item.boxed_clone(),
 4302                    save_intent: *save_intent,
 4303                });
 4304                serialize_workspace = false;
 4305            }
 4306            pane::Event::ChangeItemTitle => {
 4307                if *pane == self.active_pane {
 4308                    self.active_item_path_changed(window, cx);
 4309                }
 4310                serialize_workspace = false;
 4311            }
 4312            pane::Event::RemovedItem { item } => {
 4313                cx.emit(Event::ActiveItemChanged);
 4314                self.update_window_edited(window, cx);
 4315                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4316                    && entry.get().entity_id() == pane.entity_id()
 4317                {
 4318                    entry.remove();
 4319                }
 4320                cx.emit(Event::ItemRemoved {
 4321                    item_id: item.item_id(),
 4322                });
 4323            }
 4324            pane::Event::Focus => {
 4325                window.invalidate_character_coordinates();
 4326                self.handle_pane_focused(pane.clone(), window, cx);
 4327            }
 4328            pane::Event::ZoomIn => {
 4329                if *pane == self.active_pane {
 4330                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4331                    if pane.read(cx).has_focus(window, cx) {
 4332                        self.zoomed = Some(pane.downgrade().into());
 4333                        self.zoomed_position = None;
 4334                        cx.emit(Event::ZoomChanged);
 4335                    }
 4336                    cx.notify();
 4337                }
 4338            }
 4339            pane::Event::ZoomOut => {
 4340                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4341                if self.zoomed_position.is_none() {
 4342                    self.zoomed = None;
 4343                    cx.emit(Event::ZoomChanged);
 4344                }
 4345                cx.notify();
 4346            }
 4347            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4348        }
 4349
 4350        if serialize_workspace {
 4351            self.serialize_workspace(window, cx);
 4352        }
 4353    }
 4354
 4355    pub fn unfollow_in_pane(
 4356        &mut self,
 4357        pane: &Entity<Pane>,
 4358        window: &mut Window,
 4359        cx: &mut Context<Workspace>,
 4360    ) -> Option<CollaboratorId> {
 4361        let leader_id = self.leader_for_pane(pane)?;
 4362        self.unfollow(leader_id, window, cx);
 4363        Some(leader_id)
 4364    }
 4365
 4366    pub fn split_pane(
 4367        &mut self,
 4368        pane_to_split: Entity<Pane>,
 4369        split_direction: SplitDirection,
 4370        window: &mut Window,
 4371        cx: &mut Context<Self>,
 4372    ) -> Entity<Pane> {
 4373        let new_pane = self.add_pane(window, cx);
 4374        self.center
 4375            .split(&pane_to_split, &new_pane, split_direction, cx)
 4376            .unwrap();
 4377        cx.notify();
 4378        new_pane
 4379    }
 4380
 4381    pub fn split_and_move(
 4382        &mut self,
 4383        pane: Entity<Pane>,
 4384        direction: SplitDirection,
 4385        window: &mut Window,
 4386        cx: &mut Context<Self>,
 4387    ) {
 4388        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4389            return;
 4390        };
 4391        let new_pane = self.add_pane(window, cx);
 4392        new_pane.update(cx, |pane, cx| {
 4393            pane.add_item(item, true, true, None, window, cx)
 4394        });
 4395        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4396        cx.notify();
 4397    }
 4398
 4399    pub fn split_and_clone(
 4400        &mut self,
 4401        pane: Entity<Pane>,
 4402        direction: SplitDirection,
 4403        window: &mut Window,
 4404        cx: &mut Context<Self>,
 4405    ) -> Task<Option<Entity<Pane>>> {
 4406        let Some(item) = pane.read(cx).active_item() else {
 4407            return Task::ready(None);
 4408        };
 4409        if !item.can_split(cx) {
 4410            return Task::ready(None);
 4411        }
 4412        let task = item.clone_on_split(self.database_id(), window, cx);
 4413        cx.spawn_in(window, async move |this, cx| {
 4414            if let Some(clone) = task.await {
 4415                this.update_in(cx, |this, window, cx| {
 4416                    let new_pane = this.add_pane(window, cx);
 4417                    new_pane.update(cx, |pane, cx| {
 4418                        pane.add_item(clone, true, true, None, window, cx)
 4419                    });
 4420                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4421                    cx.notify();
 4422                    new_pane
 4423                })
 4424                .ok()
 4425            } else {
 4426                None
 4427            }
 4428        })
 4429    }
 4430
 4431    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4432        let active_item = self.active_pane.read(cx).active_item();
 4433        for pane in &self.panes {
 4434            join_pane_into_active(&self.active_pane, pane, window, cx);
 4435        }
 4436        if let Some(active_item) = active_item {
 4437            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4438        }
 4439        cx.notify();
 4440    }
 4441
 4442    pub fn join_pane_into_next(
 4443        &mut self,
 4444        pane: Entity<Pane>,
 4445        window: &mut Window,
 4446        cx: &mut Context<Self>,
 4447    ) {
 4448        let next_pane = self
 4449            .find_pane_in_direction(SplitDirection::Right, cx)
 4450            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4451            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4452            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4453        let Some(next_pane) = next_pane else {
 4454            return;
 4455        };
 4456        move_all_items(&pane, &next_pane, window, cx);
 4457        cx.notify();
 4458    }
 4459
 4460    fn remove_pane(
 4461        &mut self,
 4462        pane: Entity<Pane>,
 4463        focus_on: Option<Entity<Pane>>,
 4464        window: &mut Window,
 4465        cx: &mut Context<Self>,
 4466    ) {
 4467        if self.center.remove(&pane, cx).unwrap() {
 4468            self.force_remove_pane(&pane, &focus_on, window, cx);
 4469            self.unfollow_in_pane(&pane, window, cx);
 4470            self.last_leaders_by_pane.remove(&pane.downgrade());
 4471            for removed_item in pane.read(cx).items() {
 4472                self.panes_by_item.remove(&removed_item.item_id());
 4473            }
 4474
 4475            cx.notify();
 4476        } else {
 4477            self.active_item_path_changed(window, cx);
 4478        }
 4479        cx.emit(Event::PaneRemoved);
 4480    }
 4481
 4482    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4483        &mut self.panes
 4484    }
 4485
 4486    pub fn panes(&self) -> &[Entity<Pane>] {
 4487        &self.panes
 4488    }
 4489
 4490    pub fn active_pane(&self) -> &Entity<Pane> {
 4491        &self.active_pane
 4492    }
 4493
 4494    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4495        for dock in self.all_docks() {
 4496            if dock.focus_handle(cx).contains_focused(window, cx)
 4497                && let Some(pane) = dock
 4498                    .read(cx)
 4499                    .active_panel()
 4500                    .and_then(|panel| panel.pane(cx))
 4501            {
 4502                return pane;
 4503            }
 4504        }
 4505        self.active_pane().clone()
 4506    }
 4507
 4508    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4509        self.find_pane_in_direction(SplitDirection::Right, cx)
 4510            .unwrap_or_else(|| {
 4511                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4512            })
 4513    }
 4514
 4515    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4516        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4517        weak_pane.upgrade()
 4518    }
 4519
 4520    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4521        self.follower_states.retain(|leader_id, state| {
 4522            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4523                for item in state.items_by_leader_view_id.values() {
 4524                    item.view.set_leader_id(None, window, cx);
 4525                }
 4526                false
 4527            } else {
 4528                true
 4529            }
 4530        });
 4531        cx.notify();
 4532    }
 4533
 4534    pub fn start_following(
 4535        &mut self,
 4536        leader_id: impl Into<CollaboratorId>,
 4537        window: &mut Window,
 4538        cx: &mut Context<Self>,
 4539    ) -> Option<Task<Result<()>>> {
 4540        let leader_id = leader_id.into();
 4541        let pane = self.active_pane().clone();
 4542
 4543        self.last_leaders_by_pane
 4544            .insert(pane.downgrade(), leader_id);
 4545        self.unfollow(leader_id, window, cx);
 4546        self.unfollow_in_pane(&pane, window, cx);
 4547        self.follower_states.insert(
 4548            leader_id,
 4549            FollowerState {
 4550                center_pane: pane.clone(),
 4551                dock_pane: None,
 4552                active_view_id: None,
 4553                items_by_leader_view_id: Default::default(),
 4554            },
 4555        );
 4556        cx.notify();
 4557
 4558        match leader_id {
 4559            CollaboratorId::PeerId(leader_peer_id) => {
 4560                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4561                let project_id = self.project.read(cx).remote_id();
 4562                let request = self.app_state.client.request(proto::Follow {
 4563                    room_id,
 4564                    project_id,
 4565                    leader_id: Some(leader_peer_id),
 4566                });
 4567
 4568                Some(cx.spawn_in(window, async move |this, cx| {
 4569                    let response = request.await?;
 4570                    this.update(cx, |this, _| {
 4571                        let state = this
 4572                            .follower_states
 4573                            .get_mut(&leader_id)
 4574                            .context("following interrupted")?;
 4575                        state.active_view_id = response
 4576                            .active_view
 4577                            .as_ref()
 4578                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4579                        anyhow::Ok(())
 4580                    })??;
 4581                    if let Some(view) = response.active_view {
 4582                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4583                    }
 4584                    this.update_in(cx, |this, window, cx| {
 4585                        this.leader_updated(leader_id, window, cx)
 4586                    })?;
 4587                    Ok(())
 4588                }))
 4589            }
 4590            CollaboratorId::Agent => {
 4591                self.leader_updated(leader_id, window, cx)?;
 4592                Some(Task::ready(Ok(())))
 4593            }
 4594        }
 4595    }
 4596
 4597    pub fn follow_next_collaborator(
 4598        &mut self,
 4599        _: &FollowNextCollaborator,
 4600        window: &mut Window,
 4601        cx: &mut Context<Self>,
 4602    ) {
 4603        let collaborators = self.project.read(cx).collaborators();
 4604        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4605            let mut collaborators = collaborators.keys().copied();
 4606            for peer_id in collaborators.by_ref() {
 4607                if CollaboratorId::PeerId(peer_id) == leader_id {
 4608                    break;
 4609                }
 4610            }
 4611            collaborators.next().map(CollaboratorId::PeerId)
 4612        } else if let Some(last_leader_id) =
 4613            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4614        {
 4615            match last_leader_id {
 4616                CollaboratorId::PeerId(peer_id) => {
 4617                    if collaborators.contains_key(peer_id) {
 4618                        Some(*last_leader_id)
 4619                    } else {
 4620                        None
 4621                    }
 4622                }
 4623                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4624            }
 4625        } else {
 4626            None
 4627        };
 4628
 4629        let pane = self.active_pane.clone();
 4630        let Some(leader_id) = next_leader_id.or_else(|| {
 4631            Some(CollaboratorId::PeerId(
 4632                collaborators.keys().copied().next()?,
 4633            ))
 4634        }) else {
 4635            return;
 4636        };
 4637        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4638            return;
 4639        }
 4640        if let Some(task) = self.start_following(leader_id, window, cx) {
 4641            task.detach_and_log_err(cx)
 4642        }
 4643    }
 4644
 4645    pub fn follow(
 4646        &mut self,
 4647        leader_id: impl Into<CollaboratorId>,
 4648        window: &mut Window,
 4649        cx: &mut Context<Self>,
 4650    ) {
 4651        let leader_id = leader_id.into();
 4652
 4653        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4654            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4655                return;
 4656            };
 4657            let room = room.read(cx);
 4658            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4659                return;
 4660            };
 4661
 4662            let project = self.project.read(cx);
 4663
 4664            let other_project_id = match remote_participant.location {
 4665                call::ParticipantLocation::External => None,
 4666                call::ParticipantLocation::UnsharedProject => None,
 4667                call::ParticipantLocation::SharedProject { project_id } => {
 4668                    if Some(project_id) == project.remote_id() {
 4669                        None
 4670                    } else {
 4671                        Some(project_id)
 4672                    }
 4673                }
 4674            };
 4675
 4676            // if they are active in another project, follow there.
 4677            if let Some(project_id) = other_project_id {
 4678                let app_state = self.app_state.clone();
 4679                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4680                    .detach_and_log_err(cx);
 4681            }
 4682        }
 4683
 4684        // if you're already following, find the right pane and focus it.
 4685        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4686            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4687
 4688            return;
 4689        }
 4690
 4691        // Otherwise, follow.
 4692        if let Some(task) = self.start_following(leader_id, window, cx) {
 4693            task.detach_and_log_err(cx)
 4694        }
 4695    }
 4696
 4697    pub fn unfollow(
 4698        &mut self,
 4699        leader_id: impl Into<CollaboratorId>,
 4700        window: &mut Window,
 4701        cx: &mut Context<Self>,
 4702    ) -> Option<()> {
 4703        cx.notify();
 4704
 4705        let leader_id = leader_id.into();
 4706        let state = self.follower_states.remove(&leader_id)?;
 4707        for (_, item) in state.items_by_leader_view_id {
 4708            item.view.set_leader_id(None, window, cx);
 4709        }
 4710
 4711        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4712            let project_id = self.project.read(cx).remote_id();
 4713            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4714            self.app_state
 4715                .client
 4716                .send(proto::Unfollow {
 4717                    room_id,
 4718                    project_id,
 4719                    leader_id: Some(leader_peer_id),
 4720                })
 4721                .log_err();
 4722        }
 4723
 4724        Some(())
 4725    }
 4726
 4727    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4728        self.follower_states.contains_key(&id.into())
 4729    }
 4730
 4731    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4732        cx.emit(Event::ActiveItemChanged);
 4733        let active_entry = self.active_project_path(cx);
 4734        self.project.update(cx, |project, cx| {
 4735            project.set_active_path(active_entry.clone(), cx)
 4736        });
 4737
 4738        if let Some(project_path) = &active_entry {
 4739            let git_store_entity = self.project.read(cx).git_store().clone();
 4740            git_store_entity.update(cx, |git_store, cx| {
 4741                git_store.set_active_repo_for_path(project_path, cx);
 4742            });
 4743        }
 4744
 4745        self.update_window_title(window, cx);
 4746    }
 4747
 4748    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4749        let project = self.project().read(cx);
 4750        let mut title = String::new();
 4751
 4752        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4753            let name = {
 4754                let settings_location = SettingsLocation {
 4755                    worktree_id: worktree.read(cx).id(),
 4756                    path: RelPath::empty(),
 4757                };
 4758
 4759                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4760                match &settings.project_name {
 4761                    Some(name) => name.as_str(),
 4762                    None => worktree.read(cx).root_name_str(),
 4763                }
 4764            };
 4765            if i > 0 {
 4766                title.push_str(", ");
 4767            }
 4768            title.push_str(name);
 4769        }
 4770
 4771        if title.is_empty() {
 4772            title = "empty project".to_string();
 4773        }
 4774
 4775        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4776            let filename = path.path.file_name().or_else(|| {
 4777                Some(
 4778                    project
 4779                        .worktree_for_id(path.worktree_id, cx)?
 4780                        .read(cx)
 4781                        .root_name_str(),
 4782                )
 4783            });
 4784
 4785            if let Some(filename) = filename {
 4786                title.push_str("");
 4787                title.push_str(filename.as_ref());
 4788            }
 4789        }
 4790
 4791        if project.is_via_collab() {
 4792            title.push_str("");
 4793        } else if project.is_shared() {
 4794            title.push_str("");
 4795        }
 4796
 4797        if let Some(last_title) = self.last_window_title.as_ref()
 4798            && &title == last_title
 4799        {
 4800            return;
 4801        }
 4802        window.set_window_title(&title);
 4803        SystemWindowTabController::update_tab_title(
 4804            cx,
 4805            window.window_handle().window_id(),
 4806            SharedString::from(&title),
 4807        );
 4808        self.last_window_title = Some(title);
 4809    }
 4810
 4811    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4812        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4813        if is_edited != self.window_edited {
 4814            self.window_edited = is_edited;
 4815            window.set_window_edited(self.window_edited)
 4816        }
 4817    }
 4818
 4819    fn update_item_dirty_state(
 4820        &mut self,
 4821        item: &dyn ItemHandle,
 4822        window: &mut Window,
 4823        cx: &mut App,
 4824    ) {
 4825        let is_dirty = item.is_dirty(cx);
 4826        let item_id = item.item_id();
 4827        let was_dirty = self.dirty_items.contains_key(&item_id);
 4828        if is_dirty == was_dirty {
 4829            return;
 4830        }
 4831        if was_dirty {
 4832            self.dirty_items.remove(&item_id);
 4833            self.update_window_edited(window, cx);
 4834            return;
 4835        }
 4836        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4837            let s = item.on_release(
 4838                cx,
 4839                Box::new(move |cx| {
 4840                    window_handle
 4841                        .update(cx, |this, window, cx| {
 4842                            this.dirty_items.remove(&item_id);
 4843                            this.update_window_edited(window, cx)
 4844                        })
 4845                        .ok();
 4846                }),
 4847            );
 4848            self.dirty_items.insert(item_id, s);
 4849            self.update_window_edited(window, cx);
 4850        }
 4851    }
 4852
 4853    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4854        if self.notifications.is_empty() {
 4855            None
 4856        } else {
 4857            Some(
 4858                div()
 4859                    .absolute()
 4860                    .right_3()
 4861                    .bottom_3()
 4862                    .w_112()
 4863                    .h_full()
 4864                    .flex()
 4865                    .flex_col()
 4866                    .justify_end()
 4867                    .gap_2()
 4868                    .children(
 4869                        self.notifications
 4870                            .iter()
 4871                            .map(|(_, notification)| notification.clone().into_any()),
 4872                    ),
 4873            )
 4874        }
 4875    }
 4876
 4877    // RPC handlers
 4878
 4879    fn active_view_for_follower(
 4880        &self,
 4881        follower_project_id: Option<u64>,
 4882        window: &mut Window,
 4883        cx: &mut Context<Self>,
 4884    ) -> Option<proto::View> {
 4885        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4886        let item = item?;
 4887        let leader_id = self
 4888            .pane_for(&*item)
 4889            .and_then(|pane| self.leader_for_pane(&pane));
 4890        let leader_peer_id = match leader_id {
 4891            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4892            Some(CollaboratorId::Agent) | None => None,
 4893        };
 4894
 4895        let item_handle = item.to_followable_item_handle(cx)?;
 4896        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4897        let variant = item_handle.to_state_proto(window, cx)?;
 4898
 4899        if item_handle.is_project_item(window, cx)
 4900            && (follower_project_id.is_none()
 4901                || follower_project_id != self.project.read(cx).remote_id())
 4902        {
 4903            return None;
 4904        }
 4905
 4906        Some(proto::View {
 4907            id: id.to_proto(),
 4908            leader_id: leader_peer_id,
 4909            variant: Some(variant),
 4910            panel_id: panel_id.map(|id| id as i32),
 4911        })
 4912    }
 4913
 4914    fn handle_follow(
 4915        &mut self,
 4916        follower_project_id: Option<u64>,
 4917        window: &mut Window,
 4918        cx: &mut Context<Self>,
 4919    ) -> proto::FollowResponse {
 4920        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4921
 4922        cx.notify();
 4923        proto::FollowResponse {
 4924            // TODO: Remove after version 0.145.x stabilizes.
 4925            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4926            views: active_view.iter().cloned().collect(),
 4927            active_view,
 4928        }
 4929    }
 4930
 4931    fn handle_update_followers(
 4932        &mut self,
 4933        leader_id: PeerId,
 4934        message: proto::UpdateFollowers,
 4935        _window: &mut Window,
 4936        _cx: &mut Context<Self>,
 4937    ) {
 4938        self.leader_updates_tx
 4939            .unbounded_send((leader_id, message))
 4940            .ok();
 4941    }
 4942
 4943    async fn process_leader_update(
 4944        this: &WeakEntity<Self>,
 4945        leader_id: PeerId,
 4946        update: proto::UpdateFollowers,
 4947        cx: &mut AsyncWindowContext,
 4948    ) -> Result<()> {
 4949        match update.variant.context("invalid update")? {
 4950            proto::update_followers::Variant::CreateView(view) => {
 4951                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4952                let should_add_view = this.update(cx, |this, _| {
 4953                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4954                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4955                    } else {
 4956                        anyhow::Ok(false)
 4957                    }
 4958                })??;
 4959
 4960                if should_add_view {
 4961                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4962                }
 4963            }
 4964            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4965                let should_add_view = this.update(cx, |this, _| {
 4966                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4967                        state.active_view_id = update_active_view
 4968                            .view
 4969                            .as_ref()
 4970                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4971
 4972                        if state.active_view_id.is_some_and(|view_id| {
 4973                            !state.items_by_leader_view_id.contains_key(&view_id)
 4974                        }) {
 4975                            anyhow::Ok(true)
 4976                        } else {
 4977                            anyhow::Ok(false)
 4978                        }
 4979                    } else {
 4980                        anyhow::Ok(false)
 4981                    }
 4982                })??;
 4983
 4984                if should_add_view && let Some(view) = update_active_view.view {
 4985                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4986                }
 4987            }
 4988            proto::update_followers::Variant::UpdateView(update_view) => {
 4989                let variant = update_view.variant.context("missing update view variant")?;
 4990                let id = update_view.id.context("missing update view id")?;
 4991                let mut tasks = Vec::new();
 4992                this.update_in(cx, |this, window, cx| {
 4993                    let project = this.project.clone();
 4994                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4995                        let view_id = ViewId::from_proto(id.clone())?;
 4996                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4997                            tasks.push(item.view.apply_update_proto(
 4998                                &project,
 4999                                variant.clone(),
 5000                                window,
 5001                                cx,
 5002                            ));
 5003                        }
 5004                    }
 5005                    anyhow::Ok(())
 5006                })??;
 5007                try_join_all(tasks).await.log_err();
 5008            }
 5009        }
 5010        this.update_in(cx, |this, window, cx| {
 5011            this.leader_updated(leader_id, window, cx)
 5012        })?;
 5013        Ok(())
 5014    }
 5015
 5016    async fn add_view_from_leader(
 5017        this: WeakEntity<Self>,
 5018        leader_id: PeerId,
 5019        view: &proto::View,
 5020        cx: &mut AsyncWindowContext,
 5021    ) -> Result<()> {
 5022        let this = this.upgrade().context("workspace dropped")?;
 5023
 5024        let Some(id) = view.id.clone() else {
 5025            anyhow::bail!("no id for view");
 5026        };
 5027        let id = ViewId::from_proto(id)?;
 5028        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5029
 5030        let pane = this.update(cx, |this, _cx| {
 5031            let state = this
 5032                .follower_states
 5033                .get(&leader_id.into())
 5034                .context("stopped following")?;
 5035            anyhow::Ok(state.pane().clone())
 5036        })??;
 5037        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5038            let client = this.read(cx).client().clone();
 5039            pane.items().find_map(|item| {
 5040                let item = item.to_followable_item_handle(cx)?;
 5041                if item.remote_id(&client, window, cx) == Some(id) {
 5042                    Some(item)
 5043                } else {
 5044                    None
 5045                }
 5046            })
 5047        })?;
 5048        let item = if let Some(existing_item) = existing_item {
 5049            existing_item
 5050        } else {
 5051            let variant = view.variant.clone();
 5052            anyhow::ensure!(variant.is_some(), "missing view variant");
 5053
 5054            let task = cx.update(|window, cx| {
 5055                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5056            })?;
 5057
 5058            let Some(task) = task else {
 5059                anyhow::bail!(
 5060                    "failed to construct view from leader (maybe from a different version of zed?)"
 5061                );
 5062            };
 5063
 5064            let mut new_item = task.await?;
 5065            pane.update_in(cx, |pane, window, cx| {
 5066                let mut item_to_remove = None;
 5067                for (ix, item) in pane.items().enumerate() {
 5068                    if let Some(item) = item.to_followable_item_handle(cx) {
 5069                        match new_item.dedup(item.as_ref(), window, cx) {
 5070                            Some(item::Dedup::KeepExisting) => {
 5071                                new_item =
 5072                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5073                                break;
 5074                            }
 5075                            Some(item::Dedup::ReplaceExisting) => {
 5076                                item_to_remove = Some((ix, item.item_id()));
 5077                                break;
 5078                            }
 5079                            None => {}
 5080                        }
 5081                    }
 5082                }
 5083
 5084                if let Some((ix, id)) = item_to_remove {
 5085                    pane.remove_item(id, false, false, window, cx);
 5086                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5087                }
 5088            })?;
 5089
 5090            new_item
 5091        };
 5092
 5093        this.update_in(cx, |this, window, cx| {
 5094            let state = this.follower_states.get_mut(&leader_id.into())?;
 5095            item.set_leader_id(Some(leader_id.into()), window, cx);
 5096            state.items_by_leader_view_id.insert(
 5097                id,
 5098                FollowerView {
 5099                    view: item,
 5100                    location: panel_id,
 5101                },
 5102            );
 5103
 5104            Some(())
 5105        })?;
 5106
 5107        Ok(())
 5108    }
 5109
 5110    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5111        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5112            return;
 5113        };
 5114
 5115        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5116            let buffer_entity_id = agent_location.buffer.entity_id();
 5117            let view_id = ViewId {
 5118                creator: CollaboratorId::Agent,
 5119                id: buffer_entity_id.as_u64(),
 5120            };
 5121            follower_state.active_view_id = Some(view_id);
 5122
 5123            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5124                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5125                hash_map::Entry::Vacant(entry) => {
 5126                    let existing_view =
 5127                        follower_state
 5128                            .center_pane
 5129                            .read(cx)
 5130                            .items()
 5131                            .find_map(|item| {
 5132                                let item = item.to_followable_item_handle(cx)?;
 5133                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5134                                    && item.project_item_model_ids(cx).as_slice()
 5135                                        == [buffer_entity_id]
 5136                                {
 5137                                    Some(item)
 5138                                } else {
 5139                                    None
 5140                                }
 5141                            });
 5142                    let view = existing_view.or_else(|| {
 5143                        agent_location.buffer.upgrade().and_then(|buffer| {
 5144                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5145                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5146                            })?
 5147                            .to_followable_item_handle(cx)
 5148                        })
 5149                    });
 5150
 5151                    view.map(|view| {
 5152                        entry.insert(FollowerView {
 5153                            view,
 5154                            location: None,
 5155                        })
 5156                    })
 5157                }
 5158            };
 5159
 5160            if let Some(item) = item {
 5161                item.view
 5162                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5163                item.view
 5164                    .update_agent_location(agent_location.position, window, cx);
 5165            }
 5166        } else {
 5167            follower_state.active_view_id = None;
 5168        }
 5169
 5170        self.leader_updated(CollaboratorId::Agent, window, cx);
 5171    }
 5172
 5173    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5174        let mut is_project_item = true;
 5175        let mut update = proto::UpdateActiveView::default();
 5176        if window.is_window_active() {
 5177            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5178
 5179            if let Some(item) = active_item
 5180                && item.item_focus_handle(cx).contains_focused(window, cx)
 5181            {
 5182                let leader_id = self
 5183                    .pane_for(&*item)
 5184                    .and_then(|pane| self.leader_for_pane(&pane));
 5185                let leader_peer_id = match leader_id {
 5186                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5187                    Some(CollaboratorId::Agent) | None => None,
 5188                };
 5189
 5190                if let Some(item) = item.to_followable_item_handle(cx) {
 5191                    let id = item
 5192                        .remote_id(&self.app_state.client, window, cx)
 5193                        .map(|id| id.to_proto());
 5194
 5195                    if let Some(id) = id
 5196                        && let Some(variant) = item.to_state_proto(window, cx)
 5197                    {
 5198                        let view = Some(proto::View {
 5199                            id: id.clone(),
 5200                            leader_id: leader_peer_id,
 5201                            variant: Some(variant),
 5202                            panel_id: panel_id.map(|id| id as i32),
 5203                        });
 5204
 5205                        is_project_item = item.is_project_item(window, cx);
 5206                        update = proto::UpdateActiveView {
 5207                            view,
 5208                            // TODO: Remove after version 0.145.x stabilizes.
 5209                            id,
 5210                            leader_id: leader_peer_id,
 5211                        };
 5212                    };
 5213                }
 5214            }
 5215        }
 5216
 5217        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5218        if active_view_id != self.last_active_view_id.as_ref() {
 5219            self.last_active_view_id = active_view_id.cloned();
 5220            self.update_followers(
 5221                is_project_item,
 5222                proto::update_followers::Variant::UpdateActiveView(update),
 5223                window,
 5224                cx,
 5225            );
 5226        }
 5227    }
 5228
 5229    fn active_item_for_followers(
 5230        &self,
 5231        window: &mut Window,
 5232        cx: &mut App,
 5233    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5234        let mut active_item = None;
 5235        let mut panel_id = None;
 5236        for dock in self.all_docks() {
 5237            if dock.focus_handle(cx).contains_focused(window, cx)
 5238                && let Some(panel) = dock.read(cx).active_panel()
 5239                && let Some(pane) = panel.pane(cx)
 5240                && let Some(item) = pane.read(cx).active_item()
 5241            {
 5242                active_item = Some(item);
 5243                panel_id = panel.remote_id();
 5244                break;
 5245            }
 5246        }
 5247
 5248        if active_item.is_none() {
 5249            active_item = self.active_pane().read(cx).active_item();
 5250        }
 5251        (active_item, panel_id)
 5252    }
 5253
 5254    fn update_followers(
 5255        &self,
 5256        project_only: bool,
 5257        update: proto::update_followers::Variant,
 5258        _: &mut Window,
 5259        cx: &mut App,
 5260    ) -> Option<()> {
 5261        // If this update only applies to for followers in the current project,
 5262        // then skip it unless this project is shared. If it applies to all
 5263        // followers, regardless of project, then set `project_id` to none,
 5264        // indicating that it goes to all followers.
 5265        let project_id = if project_only {
 5266            Some(self.project.read(cx).remote_id()?)
 5267        } else {
 5268            None
 5269        };
 5270        self.app_state().workspace_store.update(cx, |store, cx| {
 5271            store.update_followers(project_id, update, cx)
 5272        })
 5273    }
 5274
 5275    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5276        self.follower_states.iter().find_map(|(leader_id, state)| {
 5277            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5278                Some(*leader_id)
 5279            } else {
 5280                None
 5281            }
 5282        })
 5283    }
 5284
 5285    fn leader_updated(
 5286        &mut self,
 5287        leader_id: impl Into<CollaboratorId>,
 5288        window: &mut Window,
 5289        cx: &mut Context<Self>,
 5290    ) -> Option<Box<dyn ItemHandle>> {
 5291        cx.notify();
 5292
 5293        let leader_id = leader_id.into();
 5294        let (panel_id, item) = match leader_id {
 5295            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5296            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5297        };
 5298
 5299        let state = self.follower_states.get(&leader_id)?;
 5300        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5301        let pane;
 5302        if let Some(panel_id) = panel_id {
 5303            pane = self
 5304                .activate_panel_for_proto_id(panel_id, window, cx)?
 5305                .pane(cx)?;
 5306            let state = self.follower_states.get_mut(&leader_id)?;
 5307            state.dock_pane = Some(pane.clone());
 5308        } else {
 5309            pane = state.center_pane.clone();
 5310            let state = self.follower_states.get_mut(&leader_id)?;
 5311            if let Some(dock_pane) = state.dock_pane.take() {
 5312                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5313            }
 5314        }
 5315
 5316        pane.update(cx, |pane, cx| {
 5317            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5318            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5319                pane.activate_item(index, false, false, window, cx);
 5320            } else {
 5321                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5322            }
 5323
 5324            if focus_active_item {
 5325                pane.focus_active_item(window, cx)
 5326            }
 5327        });
 5328
 5329        Some(item)
 5330    }
 5331
 5332    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5333        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5334        let active_view_id = state.active_view_id?;
 5335        Some(
 5336            state
 5337                .items_by_leader_view_id
 5338                .get(&active_view_id)?
 5339                .view
 5340                .boxed_clone(),
 5341        )
 5342    }
 5343
 5344    fn active_item_for_peer(
 5345        &self,
 5346        peer_id: PeerId,
 5347        window: &mut Window,
 5348        cx: &mut Context<Self>,
 5349    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5350        let call = self.active_call()?;
 5351        let room = call.read(cx).room()?.read(cx);
 5352        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5353        let leader_in_this_app;
 5354        let leader_in_this_project;
 5355        match participant.location {
 5356            call::ParticipantLocation::SharedProject { project_id } => {
 5357                leader_in_this_app = true;
 5358                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5359            }
 5360            call::ParticipantLocation::UnsharedProject => {
 5361                leader_in_this_app = true;
 5362                leader_in_this_project = false;
 5363            }
 5364            call::ParticipantLocation::External => {
 5365                leader_in_this_app = false;
 5366                leader_in_this_project = false;
 5367            }
 5368        };
 5369        let state = self.follower_states.get(&peer_id.into())?;
 5370        let mut item_to_activate = None;
 5371        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5372            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5373                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5374            {
 5375                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5376            }
 5377        } else if let Some(shared_screen) =
 5378            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5379        {
 5380            item_to_activate = Some((None, Box::new(shared_screen)));
 5381        }
 5382        item_to_activate
 5383    }
 5384
 5385    fn shared_screen_for_peer(
 5386        &self,
 5387        peer_id: PeerId,
 5388        pane: &Entity<Pane>,
 5389        window: &mut Window,
 5390        cx: &mut App,
 5391    ) -> Option<Entity<SharedScreen>> {
 5392        let call = self.active_call()?;
 5393        let room = call.read(cx).room()?.clone();
 5394        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5395        let track = participant.video_tracks.values().next()?.clone();
 5396        let user = participant.user.clone();
 5397
 5398        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5399            if item.read(cx).peer_id == peer_id {
 5400                return Some(item);
 5401            }
 5402        }
 5403
 5404        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5405    }
 5406
 5407    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5408        if window.is_window_active() {
 5409            self.update_active_view_for_followers(window, cx);
 5410
 5411            if let Some(database_id) = self.database_id {
 5412                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5413                    .detach();
 5414            }
 5415        } else {
 5416            for pane in &self.panes {
 5417                pane.update(cx, |pane, cx| {
 5418                    if let Some(item) = pane.active_item() {
 5419                        item.workspace_deactivated(window, cx);
 5420                    }
 5421                    for item in pane.items() {
 5422                        if matches!(
 5423                            item.workspace_settings(cx).autosave,
 5424                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5425                        ) {
 5426                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5427                                .detach_and_log_err(cx);
 5428                        }
 5429                    }
 5430                });
 5431            }
 5432        }
 5433    }
 5434
 5435    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5436        self.active_call.as_ref().map(|(call, _)| call)
 5437    }
 5438
 5439    fn on_active_call_event(
 5440        &mut self,
 5441        _: &Entity<ActiveCall>,
 5442        event: &call::room::Event,
 5443        window: &mut Window,
 5444        cx: &mut Context<Self>,
 5445    ) {
 5446        match event {
 5447            call::room::Event::ParticipantLocationChanged { participant_id }
 5448            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5449                self.leader_updated(participant_id, window, cx);
 5450            }
 5451            _ => {}
 5452        }
 5453    }
 5454
 5455    pub fn database_id(&self) -> Option<WorkspaceId> {
 5456        self.database_id
 5457    }
 5458
 5459    pub fn session_id(&self) -> Option<String> {
 5460        self.session_id.clone()
 5461    }
 5462
 5463    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5464        let project = self.project().read(cx);
 5465        project
 5466            .visible_worktrees(cx)
 5467            .map(|worktree| worktree.read(cx).abs_path())
 5468            .collect::<Vec<_>>()
 5469    }
 5470
 5471    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5472        match member {
 5473            Member::Axis(PaneAxis { members, .. }) => {
 5474                for child in members.iter() {
 5475                    self.remove_panes(child.clone(), window, cx)
 5476                }
 5477            }
 5478            Member::Pane(pane) => {
 5479                self.force_remove_pane(&pane, &None, window, cx);
 5480            }
 5481        }
 5482    }
 5483
 5484    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5485        self.session_id.take();
 5486        self.serialize_workspace_internal(window, cx)
 5487    }
 5488
 5489    fn force_remove_pane(
 5490        &mut self,
 5491        pane: &Entity<Pane>,
 5492        focus_on: &Option<Entity<Pane>>,
 5493        window: &mut Window,
 5494        cx: &mut Context<Workspace>,
 5495    ) {
 5496        self.panes.retain(|p| p != pane);
 5497        if let Some(focus_on) = focus_on {
 5498            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5499        } else if self.active_pane() == pane {
 5500            self.panes
 5501                .last()
 5502                .unwrap()
 5503                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5504        }
 5505        if self.last_active_center_pane == Some(pane.downgrade()) {
 5506            self.last_active_center_pane = None;
 5507        }
 5508        cx.notify();
 5509    }
 5510
 5511    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5512        if self._schedule_serialize_workspace.is_none() {
 5513            self._schedule_serialize_workspace =
 5514                Some(cx.spawn_in(window, async move |this, cx| {
 5515                    cx.background_executor()
 5516                        .timer(SERIALIZATION_THROTTLE_TIME)
 5517                        .await;
 5518                    this.update_in(cx, |this, window, cx| {
 5519                        this.serialize_workspace_internal(window, cx).detach();
 5520                        this._schedule_serialize_workspace.take();
 5521                    })
 5522                    .log_err();
 5523                }));
 5524        }
 5525    }
 5526
 5527    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5528        let Some(database_id) = self.database_id() else {
 5529            return Task::ready(());
 5530        };
 5531
 5532        fn serialize_pane_handle(
 5533            pane_handle: &Entity<Pane>,
 5534            window: &mut Window,
 5535            cx: &mut App,
 5536        ) -> SerializedPane {
 5537            let (items, active, pinned_count) = {
 5538                let pane = pane_handle.read(cx);
 5539                let active_item_id = pane.active_item().map(|item| item.item_id());
 5540                (
 5541                    pane.items()
 5542                        .filter_map(|handle| {
 5543                            let handle = handle.to_serializable_item_handle(cx)?;
 5544
 5545                            Some(SerializedItem {
 5546                                kind: Arc::from(handle.serialized_item_kind()),
 5547                                item_id: handle.item_id().as_u64(),
 5548                                active: Some(handle.item_id()) == active_item_id,
 5549                                preview: pane.is_active_preview_item(handle.item_id()),
 5550                            })
 5551                        })
 5552                        .collect::<Vec<_>>(),
 5553                    pane.has_focus(window, cx),
 5554                    pane.pinned_count(),
 5555                )
 5556            };
 5557
 5558            SerializedPane::new(items, active, pinned_count)
 5559        }
 5560
 5561        fn build_serialized_pane_group(
 5562            pane_group: &Member,
 5563            window: &mut Window,
 5564            cx: &mut App,
 5565        ) -> SerializedPaneGroup {
 5566            match pane_group {
 5567                Member::Axis(PaneAxis {
 5568                    axis,
 5569                    members,
 5570                    flexes,
 5571                    bounding_boxes: _,
 5572                }) => SerializedPaneGroup::Group {
 5573                    axis: SerializedAxis(*axis),
 5574                    children: members
 5575                        .iter()
 5576                        .map(|member| build_serialized_pane_group(member, window, cx))
 5577                        .collect::<Vec<_>>(),
 5578                    flexes: Some(flexes.lock().clone()),
 5579                },
 5580                Member::Pane(pane_handle) => {
 5581                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5582                }
 5583            }
 5584        }
 5585
 5586        fn build_serialized_docks(
 5587            this: &Workspace,
 5588            window: &mut Window,
 5589            cx: &mut App,
 5590        ) -> DockStructure {
 5591            let left_dock = this.left_dock.read(cx);
 5592            let left_visible = left_dock.is_open();
 5593            let left_active_panel = left_dock
 5594                .active_panel()
 5595                .map(|panel| panel.persistent_name().to_string());
 5596            let left_dock_zoom = left_dock
 5597                .active_panel()
 5598                .map(|panel| panel.is_zoomed(window, cx))
 5599                .unwrap_or(false);
 5600
 5601            let right_dock = this.right_dock.read(cx);
 5602            let right_visible = right_dock.is_open();
 5603            let right_active_panel = right_dock
 5604                .active_panel()
 5605                .map(|panel| panel.persistent_name().to_string());
 5606            let right_dock_zoom = right_dock
 5607                .active_panel()
 5608                .map(|panel| panel.is_zoomed(window, cx))
 5609                .unwrap_or(false);
 5610
 5611            let bottom_dock = this.bottom_dock.read(cx);
 5612            let bottom_visible = bottom_dock.is_open();
 5613            let bottom_active_panel = bottom_dock
 5614                .active_panel()
 5615                .map(|panel| panel.persistent_name().to_string());
 5616            let bottom_dock_zoom = bottom_dock
 5617                .active_panel()
 5618                .map(|panel| panel.is_zoomed(window, cx))
 5619                .unwrap_or(false);
 5620
 5621            DockStructure {
 5622                left: DockData {
 5623                    visible: left_visible,
 5624                    active_panel: left_active_panel,
 5625                    zoom: left_dock_zoom,
 5626                },
 5627                right: DockData {
 5628                    visible: right_visible,
 5629                    active_panel: right_active_panel,
 5630                    zoom: right_dock_zoom,
 5631                },
 5632                bottom: DockData {
 5633                    visible: bottom_visible,
 5634                    active_panel: bottom_active_panel,
 5635                    zoom: bottom_dock_zoom,
 5636                },
 5637            }
 5638        }
 5639
 5640        match self.serialize_workspace_location(cx) {
 5641            WorkspaceLocation::Location(location, paths) => {
 5642                let breakpoints = self.project.update(cx, |project, cx| {
 5643                    project
 5644                        .breakpoint_store()
 5645                        .read(cx)
 5646                        .all_source_breakpoints(cx)
 5647                });
 5648                let user_toolchains = self
 5649                    .project
 5650                    .read(cx)
 5651                    .user_toolchains(cx)
 5652                    .unwrap_or_default();
 5653
 5654                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5655                let docks = build_serialized_docks(self, window, cx);
 5656                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5657
 5658                let serialized_workspace = SerializedWorkspace {
 5659                    id: database_id,
 5660                    location,
 5661                    paths,
 5662                    center_group,
 5663                    window_bounds,
 5664                    display: Default::default(),
 5665                    docks,
 5666                    centered_layout: self.centered_layout,
 5667                    session_id: self.session_id.clone(),
 5668                    breakpoints,
 5669                    window_id: Some(window.window_handle().window_id().as_u64()),
 5670                    user_toolchains,
 5671                };
 5672
 5673                window.spawn(cx, async move |_| {
 5674                    persistence::DB.save_workspace(serialized_workspace).await;
 5675                })
 5676            }
 5677            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5678                persistence::DB
 5679                    .set_session_id(database_id, None)
 5680                    .await
 5681                    .log_err();
 5682            }),
 5683            WorkspaceLocation::None => Task::ready(()),
 5684        }
 5685    }
 5686
 5687    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5688        let paths = PathList::new(&self.root_paths(cx));
 5689        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5690            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5691        } else if self.project.read(cx).is_local() {
 5692            if !paths.is_empty() {
 5693                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5694            } else {
 5695                WorkspaceLocation::DetachFromSession
 5696            }
 5697        } else {
 5698            WorkspaceLocation::None
 5699        }
 5700    }
 5701
 5702    fn update_history(&self, cx: &mut App) {
 5703        let Some(id) = self.database_id() else {
 5704            return;
 5705        };
 5706        if !self.project.read(cx).is_local() {
 5707            return;
 5708        }
 5709        if let Some(manager) = HistoryManager::global(cx) {
 5710            let paths = PathList::new(&self.root_paths(cx));
 5711            manager.update(cx, |this, cx| {
 5712                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5713            });
 5714        }
 5715    }
 5716
 5717    async fn serialize_items(
 5718        this: &WeakEntity<Self>,
 5719        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5720        cx: &mut AsyncWindowContext,
 5721    ) -> Result<()> {
 5722        const CHUNK_SIZE: usize = 200;
 5723
 5724        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5725
 5726        while let Some(items_received) = serializable_items.next().await {
 5727            let unique_items =
 5728                items_received
 5729                    .into_iter()
 5730                    .fold(HashMap::default(), |mut acc, item| {
 5731                        acc.entry(item.item_id()).or_insert(item);
 5732                        acc
 5733                    });
 5734
 5735            // We use into_iter() here so that the references to the items are moved into
 5736            // the tasks and not kept alive while we're sleeping.
 5737            for (_, item) in unique_items.into_iter() {
 5738                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5739                    item.serialize(workspace, false, window, cx)
 5740                }) {
 5741                    cx.background_spawn(async move { task.await.log_err() })
 5742                        .detach();
 5743                }
 5744            }
 5745
 5746            cx.background_executor()
 5747                .timer(SERIALIZATION_THROTTLE_TIME)
 5748                .await;
 5749        }
 5750
 5751        Ok(())
 5752    }
 5753
 5754    pub(crate) fn enqueue_item_serialization(
 5755        &mut self,
 5756        item: Box<dyn SerializableItemHandle>,
 5757    ) -> Result<()> {
 5758        self.serializable_items_tx
 5759            .unbounded_send(item)
 5760            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5761    }
 5762
 5763    pub(crate) fn load_workspace(
 5764        serialized_workspace: SerializedWorkspace,
 5765        paths_to_open: Vec<Option<ProjectPath>>,
 5766        window: &mut Window,
 5767        cx: &mut Context<Workspace>,
 5768    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5769        cx.spawn_in(window, async move |workspace, cx| {
 5770            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5771
 5772            let mut center_group = None;
 5773            let mut center_items = None;
 5774
 5775            // Traverse the splits tree and add to things
 5776            if let Some((group, active_pane, items)) = serialized_workspace
 5777                .center_group
 5778                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5779                .await
 5780            {
 5781                center_items = Some(items);
 5782                center_group = Some((group, active_pane))
 5783            }
 5784
 5785            let mut items_by_project_path = HashMap::default();
 5786            let mut item_ids_by_kind = HashMap::default();
 5787            let mut all_deserialized_items = Vec::default();
 5788            cx.update(|_, cx| {
 5789                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5790                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5791                        item_ids_by_kind
 5792                            .entry(serializable_item_handle.serialized_item_kind())
 5793                            .or_insert(Vec::new())
 5794                            .push(item.item_id().as_u64() as ItemId);
 5795                    }
 5796
 5797                    if let Some(project_path) = item.project_path(cx) {
 5798                        items_by_project_path.insert(project_path, item.clone());
 5799                    }
 5800                    all_deserialized_items.push(item);
 5801                }
 5802            })?;
 5803
 5804            let opened_items = paths_to_open
 5805                .into_iter()
 5806                .map(|path_to_open| {
 5807                    path_to_open
 5808                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5809                })
 5810                .collect::<Vec<_>>();
 5811
 5812            // Remove old panes from workspace panes list
 5813            workspace.update_in(cx, |workspace, window, cx| {
 5814                if let Some((center_group, active_pane)) = center_group {
 5815                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5816
 5817                    // Swap workspace center group
 5818                    workspace.center = PaneGroup::with_root(center_group);
 5819                    workspace.center.set_is_center(true);
 5820                    workspace.center.mark_positions(cx);
 5821
 5822                    if let Some(active_pane) = active_pane {
 5823                        workspace.set_active_pane(&active_pane, window, cx);
 5824                        cx.focus_self(window);
 5825                    } else {
 5826                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5827                    }
 5828                }
 5829
 5830                let docks = serialized_workspace.docks;
 5831
 5832                for (dock, serialized_dock) in [
 5833                    (&mut workspace.right_dock, docks.right),
 5834                    (&mut workspace.left_dock, docks.left),
 5835                    (&mut workspace.bottom_dock, docks.bottom),
 5836                ]
 5837                .iter_mut()
 5838                {
 5839                    dock.update(cx, |dock, cx| {
 5840                        dock.serialized_dock = Some(serialized_dock.clone());
 5841                        dock.restore_state(window, cx);
 5842                    });
 5843                }
 5844
 5845                cx.notify();
 5846            })?;
 5847
 5848            let _ = project
 5849                .update(cx, |project, cx| {
 5850                    project
 5851                        .breakpoint_store()
 5852                        .update(cx, |breakpoint_store, cx| {
 5853                            breakpoint_store
 5854                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5855                        })
 5856                })?
 5857                .await;
 5858
 5859            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5860            // after loading the items, we might have different items and in order to avoid
 5861            // the database filling up, we delete items that haven't been loaded now.
 5862            //
 5863            // The items that have been loaded, have been saved after they've been added to the workspace.
 5864            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5865                item_ids_by_kind
 5866                    .into_iter()
 5867                    .map(|(item_kind, loaded_items)| {
 5868                        SerializableItemRegistry::cleanup(
 5869                            item_kind,
 5870                            serialized_workspace.id,
 5871                            loaded_items,
 5872                            window,
 5873                            cx,
 5874                        )
 5875                        .log_err()
 5876                    })
 5877                    .collect::<Vec<_>>()
 5878            })?;
 5879
 5880            futures::future::join_all(clean_up_tasks).await;
 5881
 5882            workspace
 5883                .update_in(cx, |workspace, window, cx| {
 5884                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5885                    workspace.serialize_workspace_internal(window, cx).detach();
 5886
 5887                    // Ensure that we mark the window as edited if we did load dirty items
 5888                    workspace.update_window_edited(window, cx);
 5889                })
 5890                .ok();
 5891
 5892            Ok(opened_items)
 5893        })
 5894    }
 5895
 5896    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5897        self.add_workspace_actions_listeners(div, window, cx)
 5898            .on_action(cx.listener(
 5899                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5900                    for action in &action_sequence.0 {
 5901                        window.dispatch_action(action.boxed_clone(), cx);
 5902                    }
 5903                },
 5904            ))
 5905            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5906            .on_action(cx.listener(Self::close_all_items_and_panes))
 5907            .on_action(cx.listener(Self::save_all))
 5908            .on_action(cx.listener(Self::send_keystrokes))
 5909            .on_action(cx.listener(Self::add_folder_to_project))
 5910            .on_action(cx.listener(Self::follow_next_collaborator))
 5911            .on_action(cx.listener(Self::close_window))
 5912            .on_action(cx.listener(Self::activate_pane_at_index))
 5913            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5914            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5915            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5916            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5917                let pane = workspace.active_pane().clone();
 5918                workspace.unfollow_in_pane(&pane, window, cx);
 5919            }))
 5920            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5921                workspace
 5922                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5923                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5924            }))
 5925            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5926                workspace
 5927                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5928                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5929            }))
 5930            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5931                workspace
 5932                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5933                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5934            }))
 5935            .on_action(
 5936                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5937                    workspace.activate_previous_pane(window, cx)
 5938                }),
 5939            )
 5940            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5941                workspace.activate_next_pane(window, cx)
 5942            }))
 5943            .on_action(
 5944                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5945                    workspace.activate_next_window(cx)
 5946                }),
 5947            )
 5948            .on_action(
 5949                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5950                    workspace.activate_previous_window(cx)
 5951                }),
 5952            )
 5953            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5954                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5955            }))
 5956            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5957                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5958            }))
 5959            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5960                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5961            }))
 5962            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5963                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5964            }))
 5965            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5966                workspace.activate_next_pane(window, cx)
 5967            }))
 5968            .on_action(cx.listener(
 5969                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5970                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5971                },
 5972            ))
 5973            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5974                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5975            }))
 5976            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5977                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5978            }))
 5979            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5980                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5981            }))
 5982            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5983                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5984            }))
 5985            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5986                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5987                    SplitDirection::Down,
 5988                    SplitDirection::Up,
 5989                    SplitDirection::Right,
 5990                    SplitDirection::Left,
 5991                ];
 5992                for dir in DIRECTION_PRIORITY {
 5993                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 5994                        workspace.swap_pane_in_direction(dir, cx);
 5995                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 5996                        break;
 5997                    }
 5998                }
 5999            }))
 6000            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6001                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6002            }))
 6003            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6004                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6005            }))
 6006            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6007                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6008            }))
 6009            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6010                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6011            }))
 6012            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6013                this.toggle_dock(DockPosition::Left, window, cx);
 6014            }))
 6015            .on_action(cx.listener(
 6016                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6017                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6018                },
 6019            ))
 6020            .on_action(cx.listener(
 6021                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6022                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6023                },
 6024            ))
 6025            .on_action(cx.listener(
 6026                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6027                    if !workspace.close_active_dock(window, cx) {
 6028                        cx.propagate();
 6029                    }
 6030                },
 6031            ))
 6032            .on_action(
 6033                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6034                    workspace.close_all_docks(window, cx);
 6035                }),
 6036            )
 6037            .on_action(cx.listener(Self::toggle_all_docks))
 6038            .on_action(cx.listener(
 6039                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6040                    workspace.clear_all_notifications(cx);
 6041                },
 6042            ))
 6043            .on_action(cx.listener(
 6044                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6045                    workspace.clear_navigation_history(window, cx);
 6046                },
 6047            ))
 6048            .on_action(cx.listener(
 6049                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6050                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6051                        workspace.suppress_notification(&notification_id, cx);
 6052                    }
 6053                },
 6054            ))
 6055            .on_action(cx.listener(
 6056                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6057                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6058                },
 6059            ))
 6060            .on_action(
 6061                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6062                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6063                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6064                            trusted_worktrees.clear_trusted_paths()
 6065                        });
 6066                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6067                        cx.spawn(async move |_, cx| {
 6068                            if clear_task.await.log_err().is_some() {
 6069                                cx.update(|cx| reload(cx)).ok();
 6070                            }
 6071                        })
 6072                        .detach();
 6073                    }
 6074                }),
 6075            )
 6076            .on_action(cx.listener(
 6077                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6078                    workspace.reopen_closed_item(window, cx).detach();
 6079                },
 6080            ))
 6081            .on_action(cx.listener(
 6082                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6083                    for dock in workspace.all_docks() {
 6084                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6085                            let Some(panel) = dock.read(cx).active_panel() else {
 6086                                return;
 6087                            };
 6088
 6089                            // Set to `None`, then the size will fall back to the default.
 6090                            panel.clone().set_size(None, window, cx);
 6091
 6092                            return;
 6093                        }
 6094                    }
 6095                },
 6096            ))
 6097            .on_action(cx.listener(
 6098                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6099                    for dock in workspace.all_docks() {
 6100                        if let Some(panel) = dock.read(cx).visible_panel() {
 6101                            // Set to `None`, then the size will fall back to the default.
 6102                            panel.clone().set_size(None, window, cx);
 6103                        }
 6104                    }
 6105                },
 6106            ))
 6107            .on_action(cx.listener(
 6108                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6109                    adjust_active_dock_size_by_px(
 6110                        px_with_ui_font_fallback(act.px, cx),
 6111                        workspace,
 6112                        window,
 6113                        cx,
 6114                    );
 6115                },
 6116            ))
 6117            .on_action(cx.listener(
 6118                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6119                    adjust_active_dock_size_by_px(
 6120                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6121                        workspace,
 6122                        window,
 6123                        cx,
 6124                    );
 6125                },
 6126            ))
 6127            .on_action(cx.listener(
 6128                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6129                    adjust_open_docks_size_by_px(
 6130                        px_with_ui_font_fallback(act.px, cx),
 6131                        workspace,
 6132                        window,
 6133                        cx,
 6134                    );
 6135                },
 6136            ))
 6137            .on_action(cx.listener(
 6138                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6139                    adjust_open_docks_size_by_px(
 6140                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6141                        workspace,
 6142                        window,
 6143                        cx,
 6144                    );
 6145                },
 6146            ))
 6147            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6148            .on_action(cx.listener(
 6149                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6150                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6151                        let dock = active_dock.read(cx);
 6152                        if let Some(active_panel) = dock.active_panel() {
 6153                            if active_panel.pane(cx).is_none() {
 6154                                let mut recent_pane: Option<Entity<Pane>> = None;
 6155                                let mut recent_timestamp = 0;
 6156                                for pane_handle in workspace.panes() {
 6157                                    let pane = pane_handle.read(cx);
 6158                                    for entry in pane.activation_history() {
 6159                                        if entry.timestamp > recent_timestamp {
 6160                                            recent_timestamp = entry.timestamp;
 6161                                            recent_pane = Some(pane_handle.clone());
 6162                                        }
 6163                                    }
 6164                                }
 6165
 6166                                if let Some(pane) = recent_pane {
 6167                                    pane.update(cx, |pane, cx| {
 6168                                        let current_index = pane.active_item_index();
 6169                                        let items_len = pane.items_len();
 6170                                        if items_len > 0 {
 6171                                            let next_index = if current_index + 1 < items_len {
 6172                                                current_index + 1
 6173                                            } else {
 6174                                                0
 6175                                            };
 6176                                            pane.activate_item(
 6177                                                next_index, false, false, window, cx,
 6178                                            );
 6179                                        }
 6180                                    });
 6181                                    return;
 6182                                }
 6183                            }
 6184                        }
 6185                    }
 6186                    cx.propagate();
 6187                },
 6188            ))
 6189            .on_action(cx.listener(
 6190                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6191                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6192                        let dock = active_dock.read(cx);
 6193                        if let Some(active_panel) = dock.active_panel() {
 6194                            if active_panel.pane(cx).is_none() {
 6195                                let mut recent_pane: Option<Entity<Pane>> = None;
 6196                                let mut recent_timestamp = 0;
 6197                                for pane_handle in workspace.panes() {
 6198                                    let pane = pane_handle.read(cx);
 6199                                    for entry in pane.activation_history() {
 6200                                        if entry.timestamp > recent_timestamp {
 6201                                            recent_timestamp = entry.timestamp;
 6202                                            recent_pane = Some(pane_handle.clone());
 6203                                        }
 6204                                    }
 6205                                }
 6206
 6207                                if let Some(pane) = recent_pane {
 6208                                    pane.update(cx, |pane, cx| {
 6209                                        let current_index = pane.active_item_index();
 6210                                        let items_len = pane.items_len();
 6211                                        if items_len > 0 {
 6212                                            let prev_index = if current_index > 0 {
 6213                                                current_index - 1
 6214                                            } else {
 6215                                                items_len.saturating_sub(1)
 6216                                            };
 6217                                            pane.activate_item(
 6218                                                prev_index, false, false, window, cx,
 6219                                            );
 6220                                        }
 6221                                    });
 6222                                    return;
 6223                                }
 6224                            }
 6225                        }
 6226                    }
 6227                    cx.propagate();
 6228                },
 6229            ))
 6230            .on_action(cx.listener(Workspace::cancel))
 6231    }
 6232
 6233    #[cfg(any(test, feature = "test-support"))]
 6234    pub fn set_random_database_id(&mut self) {
 6235        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6236    }
 6237
 6238    #[cfg(any(test, feature = "test-support"))]
 6239    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6240        use node_runtime::NodeRuntime;
 6241        use session::Session;
 6242
 6243        let client = project.read(cx).client();
 6244        let user_store = project.read(cx).user_store();
 6245        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6246        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6247        window.activate_window();
 6248        let app_state = Arc::new(AppState {
 6249            languages: project.read(cx).languages().clone(),
 6250            workspace_store,
 6251            client,
 6252            user_store,
 6253            fs: project.read(cx).fs().clone(),
 6254            build_window_options: |_, _| Default::default(),
 6255            node_runtime: NodeRuntime::unavailable(),
 6256            session,
 6257        });
 6258        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6259        workspace
 6260            .active_pane
 6261            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6262        workspace
 6263    }
 6264
 6265    pub fn register_action<A: Action>(
 6266        &mut self,
 6267        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6268    ) -> &mut Self {
 6269        let callback = Arc::new(callback);
 6270
 6271        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6272            let callback = callback.clone();
 6273            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6274                (callback)(workspace, event, window, cx)
 6275            }))
 6276        }));
 6277        self
 6278    }
 6279    pub fn register_action_renderer(
 6280        &mut self,
 6281        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6282    ) -> &mut Self {
 6283        self.workspace_actions.push(Box::new(callback));
 6284        self
 6285    }
 6286
 6287    fn add_workspace_actions_listeners(
 6288        &self,
 6289        mut div: Div,
 6290        window: &mut Window,
 6291        cx: &mut Context<Self>,
 6292    ) -> Div {
 6293        for action in self.workspace_actions.iter() {
 6294            div = (action)(div, self, window, cx)
 6295        }
 6296        div
 6297    }
 6298
 6299    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6300        self.modal_layer.read(cx).has_active_modal()
 6301    }
 6302
 6303    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6304        self.modal_layer.read(cx).active_modal()
 6305    }
 6306
 6307    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6308    where
 6309        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6310    {
 6311        self.modal_layer.update(cx, |modal_layer, cx| {
 6312            modal_layer.toggle_modal(window, cx, build)
 6313        })
 6314    }
 6315
 6316    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6317        self.modal_layer
 6318            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6319    }
 6320
 6321    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6322        self.toast_layer
 6323            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6324    }
 6325
 6326    pub fn toggle_centered_layout(
 6327        &mut self,
 6328        _: &ToggleCenteredLayout,
 6329        _: &mut Window,
 6330        cx: &mut Context<Self>,
 6331    ) {
 6332        self.centered_layout = !self.centered_layout;
 6333        if let Some(database_id) = self.database_id() {
 6334            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6335                .detach_and_log_err(cx);
 6336        }
 6337        cx.notify();
 6338    }
 6339
 6340    fn adjust_padding(padding: Option<f32>) -> f32 {
 6341        padding
 6342            .unwrap_or(CenteredPaddingSettings::default().0)
 6343            .clamp(
 6344                CenteredPaddingSettings::MIN_PADDING,
 6345                CenteredPaddingSettings::MAX_PADDING,
 6346            )
 6347    }
 6348
 6349    fn render_dock(
 6350        &self,
 6351        position: DockPosition,
 6352        dock: &Entity<Dock>,
 6353        window: &mut Window,
 6354        cx: &mut App,
 6355    ) -> Option<Div> {
 6356        if self.zoomed_position == Some(position) {
 6357            return None;
 6358        }
 6359
 6360        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6361            let pane = panel.pane(cx)?;
 6362            let follower_states = &self.follower_states;
 6363            leader_border_for_pane(follower_states, &pane, window, cx)
 6364        });
 6365
 6366        Some(
 6367            div()
 6368                .flex()
 6369                .flex_none()
 6370                .overflow_hidden()
 6371                .child(dock.clone())
 6372                .children(leader_border),
 6373        )
 6374    }
 6375
 6376    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6377        window.root().flatten()
 6378    }
 6379
 6380    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6381        self.zoomed.as_ref()
 6382    }
 6383
 6384    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6385        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6386            return;
 6387        };
 6388        let windows = cx.windows();
 6389        let next_window =
 6390            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6391                || {
 6392                    windows
 6393                        .iter()
 6394                        .cycle()
 6395                        .skip_while(|window| window.window_id() != current_window_id)
 6396                        .nth(1)
 6397                },
 6398            );
 6399
 6400        if let Some(window) = next_window {
 6401            window
 6402                .update(cx, |_, window, _| window.activate_window())
 6403                .ok();
 6404        }
 6405    }
 6406
 6407    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6408        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6409            return;
 6410        };
 6411        let windows = cx.windows();
 6412        let prev_window =
 6413            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6414                || {
 6415                    windows
 6416                        .iter()
 6417                        .rev()
 6418                        .cycle()
 6419                        .skip_while(|window| window.window_id() != current_window_id)
 6420                        .nth(1)
 6421                },
 6422            );
 6423
 6424        if let Some(window) = prev_window {
 6425            window
 6426                .update(cx, |_, window, _| window.activate_window())
 6427                .ok();
 6428        }
 6429    }
 6430
 6431    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6432        if cx.stop_active_drag(window) {
 6433        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6434            dismiss_app_notification(&notification_id, cx);
 6435        } else {
 6436            cx.propagate();
 6437        }
 6438    }
 6439
 6440    fn adjust_dock_size_by_px(
 6441        &mut self,
 6442        panel_size: Pixels,
 6443        dock_pos: DockPosition,
 6444        px: Pixels,
 6445        window: &mut Window,
 6446        cx: &mut Context<Self>,
 6447    ) {
 6448        match dock_pos {
 6449            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6450            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6451            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6452        }
 6453    }
 6454
 6455    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6456        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6457
 6458        self.left_dock.update(cx, |left_dock, cx| {
 6459            if WorkspaceSettings::get_global(cx)
 6460                .resize_all_panels_in_dock
 6461                .contains(&DockPosition::Left)
 6462            {
 6463                left_dock.resize_all_panels(Some(size), window, cx);
 6464            } else {
 6465                left_dock.resize_active_panel(Some(size), window, cx);
 6466            }
 6467        });
 6468        self.clamp_utility_pane_widths(window, cx);
 6469    }
 6470
 6471    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6472        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6473        self.left_dock.read_with(cx, |left_dock, cx| {
 6474            let left_dock_size = left_dock
 6475                .active_panel_size(window, cx)
 6476                .unwrap_or(Pixels::ZERO);
 6477            if left_dock_size + size > self.bounds.right() {
 6478                size = self.bounds.right() - left_dock_size
 6479            }
 6480        });
 6481        self.right_dock.update(cx, |right_dock, cx| {
 6482            if WorkspaceSettings::get_global(cx)
 6483                .resize_all_panels_in_dock
 6484                .contains(&DockPosition::Right)
 6485            {
 6486                right_dock.resize_all_panels(Some(size), window, cx);
 6487            } else {
 6488                right_dock.resize_active_panel(Some(size), window, cx);
 6489            }
 6490        });
 6491        self.clamp_utility_pane_widths(window, cx);
 6492    }
 6493
 6494    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6495        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6496        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6497            if WorkspaceSettings::get_global(cx)
 6498                .resize_all_panels_in_dock
 6499                .contains(&DockPosition::Bottom)
 6500            {
 6501                bottom_dock.resize_all_panels(Some(size), window, cx);
 6502            } else {
 6503                bottom_dock.resize_active_panel(Some(size), window, cx);
 6504            }
 6505        });
 6506        self.clamp_utility_pane_widths(window, cx);
 6507    }
 6508
 6509    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6510        let left_dock_width = self
 6511            .left_dock
 6512            .read(cx)
 6513            .active_panel_size(window, cx)
 6514            .unwrap_or(px(0.0));
 6515        let right_dock_width = self
 6516            .right_dock
 6517            .read(cx)
 6518            .active_panel_size(window, cx)
 6519            .unwrap_or(px(0.0));
 6520        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6521        center_pane_width - px(10.0)
 6522    }
 6523
 6524    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6525        let max_width = self.max_utility_pane_width(window, cx);
 6526
 6527        // Clamp left slot utility pane if it exists
 6528        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6529            let current_width = handle.width(cx);
 6530            if current_width > max_width {
 6531                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6532            }
 6533        }
 6534
 6535        // Clamp right slot utility pane if it exists
 6536        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6537            let current_width = handle.width(cx);
 6538            if current_width > max_width {
 6539                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6540            }
 6541        }
 6542    }
 6543
 6544    fn toggle_edit_predictions_all_files(
 6545        &mut self,
 6546        _: &ToggleEditPrediction,
 6547        _window: &mut Window,
 6548        cx: &mut Context<Self>,
 6549    ) {
 6550        let fs = self.project().read(cx).fs().clone();
 6551        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6552        update_settings_file(fs, cx, move |file, _| {
 6553            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6554        });
 6555    }
 6556
 6557    pub fn show_worktree_trust_security_modal(
 6558        &mut self,
 6559        toggle: bool,
 6560        window: &mut Window,
 6561        cx: &mut Context<Self>,
 6562    ) {
 6563        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6564            if toggle {
 6565                security_modal.update(cx, |security_modal, cx| {
 6566                    security_modal.dismiss(cx);
 6567                })
 6568            } else {
 6569                security_modal.update(cx, |security_modal, cx| {
 6570                    security_modal.refresh_restricted_paths(cx);
 6571                });
 6572            }
 6573        } else {
 6574            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6575                .map(|trusted_worktrees| {
 6576                    trusted_worktrees
 6577                        .read(cx)
 6578                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6579                })
 6580                .unwrap_or(false);
 6581            if has_restricted_worktrees {
 6582                let project = self.project().read(cx);
 6583                let remote_host = project.remote_connection_options(cx);
 6584                let worktree_store = project.worktree_store().downgrade();
 6585                self.toggle_modal(window, cx, |_, cx| {
 6586                    SecurityModal::new(worktree_store, remote_host, cx)
 6587                });
 6588            }
 6589        }
 6590    }
 6591
 6592    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6593        self.update_window_title(window, cx);
 6594        self.serialize_workspace(window, cx);
 6595        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6596        self.update_history(cx);
 6597    }
 6598}
 6599
 6600fn leader_border_for_pane(
 6601    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6602    pane: &Entity<Pane>,
 6603    _: &Window,
 6604    cx: &App,
 6605) -> Option<Div> {
 6606    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6607        if state.pane() == pane {
 6608            Some((*leader_id, state))
 6609        } else {
 6610            None
 6611        }
 6612    })?;
 6613
 6614    let mut leader_color = match leader_id {
 6615        CollaboratorId::PeerId(leader_peer_id) => {
 6616            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6617            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6618
 6619            cx.theme()
 6620                .players()
 6621                .color_for_participant(leader.participant_index.0)
 6622                .cursor
 6623        }
 6624        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6625    };
 6626    leader_color.fade_out(0.3);
 6627    Some(
 6628        div()
 6629            .absolute()
 6630            .size_full()
 6631            .left_0()
 6632            .top_0()
 6633            .border_2()
 6634            .border_color(leader_color),
 6635    )
 6636}
 6637
 6638fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6639    ZED_WINDOW_POSITION
 6640        .zip(*ZED_WINDOW_SIZE)
 6641        .map(|(position, size)| Bounds {
 6642            origin: position,
 6643            size,
 6644        })
 6645}
 6646
 6647fn open_items(
 6648    serialized_workspace: Option<SerializedWorkspace>,
 6649    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6650    window: &mut Window,
 6651    cx: &mut Context<Workspace>,
 6652) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6653    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6654        Workspace::load_workspace(
 6655            serialized_workspace,
 6656            project_paths_to_open
 6657                .iter()
 6658                .map(|(_, project_path)| project_path)
 6659                .cloned()
 6660                .collect(),
 6661            window,
 6662            cx,
 6663        )
 6664    });
 6665
 6666    cx.spawn_in(window, async move |workspace, cx| {
 6667        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6668
 6669        if let Some(restored_items) = restored_items {
 6670            let restored_items = restored_items.await?;
 6671
 6672            let restored_project_paths = restored_items
 6673                .iter()
 6674                .filter_map(|item| {
 6675                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6676                        .ok()
 6677                        .flatten()
 6678                })
 6679                .collect::<HashSet<_>>();
 6680
 6681            for restored_item in restored_items {
 6682                opened_items.push(restored_item.map(Ok));
 6683            }
 6684
 6685            project_paths_to_open
 6686                .iter_mut()
 6687                .for_each(|(_, project_path)| {
 6688                    if let Some(project_path_to_open) = project_path
 6689                        && restored_project_paths.contains(project_path_to_open)
 6690                    {
 6691                        *project_path = None;
 6692                    }
 6693                });
 6694        } else {
 6695            for _ in 0..project_paths_to_open.len() {
 6696                opened_items.push(None);
 6697            }
 6698        }
 6699        assert!(opened_items.len() == project_paths_to_open.len());
 6700
 6701        let tasks =
 6702            project_paths_to_open
 6703                .into_iter()
 6704                .enumerate()
 6705                .map(|(ix, (abs_path, project_path))| {
 6706                    let workspace = workspace.clone();
 6707                    cx.spawn(async move |cx| {
 6708                        let file_project_path = project_path?;
 6709                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6710                            workspace.project().update(cx, |project, cx| {
 6711                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6712                            })
 6713                        });
 6714
 6715                        // We only want to open file paths here. If one of the items
 6716                        // here is a directory, it was already opened further above
 6717                        // with a `find_or_create_worktree`.
 6718                        if let Ok(task) = abs_path_task
 6719                            && task.await.is_none_or(|p| p.is_file())
 6720                        {
 6721                            return Some((
 6722                                ix,
 6723                                workspace
 6724                                    .update_in(cx, |workspace, window, cx| {
 6725                                        workspace.open_path(
 6726                                            file_project_path,
 6727                                            None,
 6728                                            true,
 6729                                            window,
 6730                                            cx,
 6731                                        )
 6732                                    })
 6733                                    .log_err()?
 6734                                    .await,
 6735                            ));
 6736                        }
 6737                        None
 6738                    })
 6739                });
 6740
 6741        let tasks = tasks.collect::<Vec<_>>();
 6742
 6743        let tasks = futures::future::join_all(tasks);
 6744        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6745            opened_items[ix] = Some(path_open_result);
 6746        }
 6747
 6748        Ok(opened_items)
 6749    })
 6750}
 6751
 6752enum ActivateInDirectionTarget {
 6753    Pane(Entity<Pane>),
 6754    Dock(Entity<Dock>),
 6755}
 6756
 6757fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6758    workspace
 6759        .update(cx, |workspace, _, cx| {
 6760            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6761                struct DatabaseFailedNotification;
 6762
 6763                workspace.show_notification(
 6764                    NotificationId::unique::<DatabaseFailedNotification>(),
 6765                    cx,
 6766                    |cx| {
 6767                        cx.new(|cx| {
 6768                            MessageNotification::new("Failed to load the database file.", cx)
 6769                                .primary_message("File an Issue")
 6770                                .primary_icon(IconName::Plus)
 6771                                .primary_on_click(|window, cx| {
 6772                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6773                                })
 6774                        })
 6775                    },
 6776                );
 6777            }
 6778        })
 6779        .log_err();
 6780}
 6781
 6782fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6783    if val == 0 {
 6784        ThemeSettings::get_global(cx).ui_font_size(cx)
 6785    } else {
 6786        px(val as f32)
 6787    }
 6788}
 6789
 6790fn adjust_active_dock_size_by_px(
 6791    px: Pixels,
 6792    workspace: &mut Workspace,
 6793    window: &mut Window,
 6794    cx: &mut Context<Workspace>,
 6795) {
 6796    let Some(active_dock) = workspace
 6797        .all_docks()
 6798        .into_iter()
 6799        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6800    else {
 6801        return;
 6802    };
 6803    let dock = active_dock.read(cx);
 6804    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6805        return;
 6806    };
 6807    let dock_pos = dock.position();
 6808    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6809}
 6810
 6811fn adjust_open_docks_size_by_px(
 6812    px: Pixels,
 6813    workspace: &mut Workspace,
 6814    window: &mut Window,
 6815    cx: &mut Context<Workspace>,
 6816) {
 6817    let docks = workspace
 6818        .all_docks()
 6819        .into_iter()
 6820        .filter_map(|dock| {
 6821            if dock.read(cx).is_open() {
 6822                let dock = dock.read(cx);
 6823                let panel_size = dock.active_panel_size(window, cx)?;
 6824                let dock_pos = dock.position();
 6825                Some((panel_size, dock_pos, px))
 6826            } else {
 6827                None
 6828            }
 6829        })
 6830        .collect::<Vec<_>>();
 6831
 6832    docks
 6833        .into_iter()
 6834        .for_each(|(panel_size, dock_pos, offset)| {
 6835            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6836        });
 6837}
 6838
 6839impl Focusable for Workspace {
 6840    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6841        self.active_pane.focus_handle(cx)
 6842    }
 6843}
 6844
 6845#[derive(Clone)]
 6846struct DraggedDock(DockPosition);
 6847
 6848impl Render for DraggedDock {
 6849    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6850        gpui::Empty
 6851    }
 6852}
 6853
 6854impl Render for Workspace {
 6855    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6856        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6857        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6858            log::info!("Rendered first frame");
 6859        }
 6860        let mut context = KeyContext::new_with_defaults();
 6861        context.add("Workspace");
 6862        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6863        if let Some(status) = self
 6864            .debugger_provider
 6865            .as_ref()
 6866            .and_then(|provider| provider.active_thread_state(cx))
 6867        {
 6868            match status {
 6869                ThreadStatus::Running | ThreadStatus::Stepping => {
 6870                    context.add("debugger_running");
 6871                }
 6872                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6873                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6874            }
 6875        }
 6876
 6877        if self.left_dock.read(cx).is_open() {
 6878            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6879                context.set("left_dock", active_panel.panel_key());
 6880            }
 6881        }
 6882
 6883        if self.right_dock.read(cx).is_open() {
 6884            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6885                context.set("right_dock", active_panel.panel_key());
 6886            }
 6887        }
 6888
 6889        if self.bottom_dock.read(cx).is_open() {
 6890            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6891                context.set("bottom_dock", active_panel.panel_key());
 6892            }
 6893        }
 6894
 6895        let centered_layout = self.centered_layout
 6896            && self.center.panes().len() == 1
 6897            && self.active_item(cx).is_some();
 6898        let render_padding = |size| {
 6899            (size > 0.0).then(|| {
 6900                div()
 6901                    .h_full()
 6902                    .w(relative(size))
 6903                    .bg(cx.theme().colors().editor_background)
 6904                    .border_color(cx.theme().colors().pane_group_border)
 6905            })
 6906        };
 6907        let paddings = if centered_layout {
 6908            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6909            (
 6910                render_padding(Self::adjust_padding(
 6911                    settings.left_padding.map(|padding| padding.0),
 6912                )),
 6913                render_padding(Self::adjust_padding(
 6914                    settings.right_padding.map(|padding| padding.0),
 6915                )),
 6916            )
 6917        } else {
 6918            (None, None)
 6919        };
 6920        let ui_font = theme::setup_ui_font(window, cx);
 6921
 6922        let theme = cx.theme().clone();
 6923        let colors = theme.colors();
 6924        let notification_entities = self
 6925            .notifications
 6926            .iter()
 6927            .map(|(_, notification)| notification.entity_id())
 6928            .collect::<Vec<_>>();
 6929        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6930
 6931        client_side_decorations(
 6932            self.actions(div(), window, cx)
 6933                .key_context(context)
 6934                .relative()
 6935                .size_full()
 6936                .flex()
 6937                .flex_col()
 6938                .font(ui_font)
 6939                .gap_0()
 6940                .justify_start()
 6941                .items_start()
 6942                .text_color(colors.text)
 6943                .overflow_hidden()
 6944                .children(self.titlebar_item.clone())
 6945                .on_modifiers_changed(move |_, _, cx| {
 6946                    for &id in &notification_entities {
 6947                        cx.notify(id);
 6948                    }
 6949                })
 6950                .child(
 6951                    div()
 6952                        .size_full()
 6953                        .relative()
 6954                        .flex_1()
 6955                        .flex()
 6956                        .flex_col()
 6957                        .child(
 6958                            div()
 6959                                .id("workspace")
 6960                                .bg(colors.background)
 6961                                .relative()
 6962                                .flex_1()
 6963                                .w_full()
 6964                                .flex()
 6965                                .flex_col()
 6966                                .overflow_hidden()
 6967                                .border_t_1()
 6968                                .border_b_1()
 6969                                .border_color(colors.border)
 6970                                .child({
 6971                                    let this = cx.entity();
 6972                                    canvas(
 6973                                        move |bounds, window, cx| {
 6974                                            this.update(cx, |this, cx| {
 6975                                                let bounds_changed = this.bounds != bounds;
 6976                                                this.bounds = bounds;
 6977
 6978                                                if bounds_changed {
 6979                                                    this.left_dock.update(cx, |dock, cx| {
 6980                                                        dock.clamp_panel_size(
 6981                                                            bounds.size.width,
 6982                                                            window,
 6983                                                            cx,
 6984                                                        )
 6985                                                    });
 6986
 6987                                                    this.right_dock.update(cx, |dock, cx| {
 6988                                                        dock.clamp_panel_size(
 6989                                                            bounds.size.width,
 6990                                                            window,
 6991                                                            cx,
 6992                                                        )
 6993                                                    });
 6994
 6995                                                    this.bottom_dock.update(cx, |dock, cx| {
 6996                                                        dock.clamp_panel_size(
 6997                                                            bounds.size.height,
 6998                                                            window,
 6999                                                            cx,
 7000                                                        )
 7001                                                    });
 7002                                                }
 7003                                            })
 7004                                        },
 7005                                        |_, _, _, _| {},
 7006                                    )
 7007                                    .absolute()
 7008                                    .size_full()
 7009                                })
 7010                                .when(self.zoomed.is_none(), |this| {
 7011                                    this.on_drag_move(cx.listener(
 7012                                        move |workspace,
 7013                                              e: &DragMoveEvent<DraggedDock>,
 7014                                              window,
 7015                                              cx| {
 7016                                            if workspace.previous_dock_drag_coordinates
 7017                                                != Some(e.event.position)
 7018                                            {
 7019                                                workspace.previous_dock_drag_coordinates =
 7020                                                    Some(e.event.position);
 7021                                                match e.drag(cx).0 {
 7022                                                    DockPosition::Left => {
 7023                                                        workspace.resize_left_dock(
 7024                                                            e.event.position.x
 7025                                                                - workspace.bounds.left(),
 7026                                                            window,
 7027                                                            cx,
 7028                                                        );
 7029                                                    }
 7030                                                    DockPosition::Right => {
 7031                                                        workspace.resize_right_dock(
 7032                                                            workspace.bounds.right()
 7033                                                                - e.event.position.x,
 7034                                                            window,
 7035                                                            cx,
 7036                                                        );
 7037                                                    }
 7038                                                    DockPosition::Bottom => {
 7039                                                        workspace.resize_bottom_dock(
 7040                                                            workspace.bounds.bottom()
 7041                                                                - e.event.position.y,
 7042                                                            window,
 7043                                                            cx,
 7044                                                        );
 7045                                                    }
 7046                                                };
 7047                                                workspace.serialize_workspace(window, cx);
 7048                                            }
 7049                                        },
 7050                                    ))
 7051                                    .on_drag_move(cx.listener(
 7052                                        move |workspace,
 7053                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7054                                              window,
 7055                                              cx| {
 7056                                            let slot = e.drag(cx).0;
 7057                                            match slot {
 7058                                                UtilityPaneSlot::Left => {
 7059                                                    let left_dock_width = workspace.left_dock.read(cx)
 7060                                                        .active_panel_size(window, cx)
 7061                                                        .unwrap_or(gpui::px(0.0));
 7062                                                    let new_width = e.event.position.x
 7063                                                        - workspace.bounds.left()
 7064                                                        - left_dock_width;
 7065                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7066                                                }
 7067                                                UtilityPaneSlot::Right => {
 7068                                                    let right_dock_width = workspace.right_dock.read(cx)
 7069                                                        .active_panel_size(window, cx)
 7070                                                        .unwrap_or(gpui::px(0.0));
 7071                                                    let new_width = workspace.bounds.right()
 7072                                                        - e.event.position.x
 7073                                                        - right_dock_width;
 7074                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7075                                                }
 7076                                            }
 7077                                        },
 7078                                    ))
 7079                                })
 7080                                .child({
 7081                                    match bottom_dock_layout {
 7082                                        BottomDockLayout::Full => div()
 7083                                            .flex()
 7084                                            .flex_col()
 7085                                            .h_full()
 7086                                            .child(
 7087                                                div()
 7088                                                    .flex()
 7089                                                    .flex_row()
 7090                                                    .flex_1()
 7091                                                    .overflow_hidden()
 7092                                                    .children(self.render_dock(
 7093                                                        DockPosition::Left,
 7094                                                        &self.left_dock,
 7095                                                        window,
 7096                                                        cx,
 7097                                                    ))
 7098                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7099                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7100                                                            this.when(pane.expanded(cx), |this| {
 7101                                                                this.child(
 7102                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7103                                                                )
 7104                                                            })
 7105                                                        })
 7106                                                    })
 7107                                                    .child(
 7108                                                        div()
 7109                                                            .flex()
 7110                                                            .flex_col()
 7111                                                            .flex_1()
 7112                                                            .overflow_hidden()
 7113                                                            .child(
 7114                                                                h_flex()
 7115                                                                    .flex_1()
 7116                                                                    .when_some(
 7117                                                                        paddings.0,
 7118                                                                        |this, p| {
 7119                                                                            this.child(
 7120                                                                                p.border_r_1(),
 7121                                                                            )
 7122                                                                        },
 7123                                                                    )
 7124                                                                    .child(self.center.render(
 7125                                                                        self.zoomed.as_ref(),
 7126                                                                        &PaneRenderContext {
 7127                                                                            follower_states:
 7128                                                                                &self.follower_states,
 7129                                                                            active_call: self.active_call(),
 7130                                                                            active_pane: &self.active_pane,
 7131                                                                            app_state: &self.app_state,
 7132                                                                            project: &self.project,
 7133                                                                            workspace: &self.weak_self,
 7134                                                                        },
 7135                                                                        window,
 7136                                                                        cx,
 7137                                                                    ))
 7138                                                                    .when_some(
 7139                                                                        paddings.1,
 7140                                                                        |this, p| {
 7141                                                                            this.child(
 7142                                                                                p.border_l_1(),
 7143                                                                            )
 7144                                                                        },
 7145                                                                    ),
 7146                                                            ),
 7147                                                    )
 7148                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7149                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7150                                                            this.when(pane.expanded(cx), |this| {
 7151                                                                this.child(
 7152                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7153                                                                )
 7154                                                            })
 7155                                                        })
 7156                                                    })
 7157                                                    .children(self.render_dock(
 7158                                                        DockPosition::Right,
 7159                                                        &self.right_dock,
 7160                                                        window,
 7161                                                        cx,
 7162                                                    )),
 7163                                            )
 7164                                            .child(div().w_full().children(self.render_dock(
 7165                                                DockPosition::Bottom,
 7166                                                &self.bottom_dock,
 7167                                                window,
 7168                                                cx
 7169                                            ))),
 7170
 7171                                        BottomDockLayout::LeftAligned => div()
 7172                                            .flex()
 7173                                            .flex_row()
 7174                                            .h_full()
 7175                                            .child(
 7176                                                div()
 7177                                                    .flex()
 7178                                                    .flex_col()
 7179                                                    .flex_1()
 7180                                                    .h_full()
 7181                                                    .child(
 7182                                                        div()
 7183                                                            .flex()
 7184                                                            .flex_row()
 7185                                                            .flex_1()
 7186                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7187                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7188                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7189                                                                    this.when(pane.expanded(cx), |this| {
 7190                                                                        this.child(
 7191                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7192                                                                        )
 7193                                                                    })
 7194                                                                })
 7195                                                            })
 7196                                                            .child(
 7197                                                                div()
 7198                                                                    .flex()
 7199                                                                    .flex_col()
 7200                                                                    .flex_1()
 7201                                                                    .overflow_hidden()
 7202                                                                    .child(
 7203                                                                        h_flex()
 7204                                                                            .flex_1()
 7205                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7206                                                                            .child(self.center.render(
 7207                                                                                self.zoomed.as_ref(),
 7208                                                                                &PaneRenderContext {
 7209                                                                                    follower_states:
 7210                                                                                        &self.follower_states,
 7211                                                                                    active_call: self.active_call(),
 7212                                                                                    active_pane: &self.active_pane,
 7213                                                                                    app_state: &self.app_state,
 7214                                                                                    project: &self.project,
 7215                                                                                    workspace: &self.weak_self,
 7216                                                                                },
 7217                                                                                window,
 7218                                                                                cx,
 7219                                                                            ))
 7220                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7221                                                                    )
 7222                                                            )
 7223                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7224                                                                this.when(pane.expanded(cx), |this| {
 7225                                                                    this.child(
 7226                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7227                                                                    )
 7228                                                                })
 7229                                                            })
 7230                                                    )
 7231                                                    .child(
 7232                                                        div()
 7233                                                            .w_full()
 7234                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7235                                                    ),
 7236                                            )
 7237                                            .children(self.render_dock(
 7238                                                DockPosition::Right,
 7239                                                &self.right_dock,
 7240                                                window,
 7241                                                cx,
 7242                                            )),
 7243
 7244                                        BottomDockLayout::RightAligned => div()
 7245                                            .flex()
 7246                                            .flex_row()
 7247                                            .h_full()
 7248                                            .children(self.render_dock(
 7249                                                DockPosition::Left,
 7250                                                &self.left_dock,
 7251                                                window,
 7252                                                cx,
 7253                                            ))
 7254                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7255                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7256                                                    this.when(pane.expanded(cx), |this| {
 7257                                                        this.child(
 7258                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7259                                                        )
 7260                                                    })
 7261                                                })
 7262                                            })
 7263                                            .child(
 7264                                                div()
 7265                                                    .flex()
 7266                                                    .flex_col()
 7267                                                    .flex_1()
 7268                                                    .h_full()
 7269                                                    .child(
 7270                                                        div()
 7271                                                            .flex()
 7272                                                            .flex_row()
 7273                                                            .flex_1()
 7274                                                            .child(
 7275                                                                div()
 7276                                                                    .flex()
 7277                                                                    .flex_col()
 7278                                                                    .flex_1()
 7279                                                                    .overflow_hidden()
 7280                                                                    .child(
 7281                                                                        h_flex()
 7282                                                                            .flex_1()
 7283                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7284                                                                            .child(self.center.render(
 7285                                                                                self.zoomed.as_ref(),
 7286                                                                                &PaneRenderContext {
 7287                                                                                    follower_states:
 7288                                                                                        &self.follower_states,
 7289                                                                                    active_call: self.active_call(),
 7290                                                                                    active_pane: &self.active_pane,
 7291                                                                                    app_state: &self.app_state,
 7292                                                                                    project: &self.project,
 7293                                                                                    workspace: &self.weak_self,
 7294                                                                                },
 7295                                                                                window,
 7296                                                                                cx,
 7297                                                                            ))
 7298                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7299                                                                    )
 7300                                                            )
 7301                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7302                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7303                                                                    this.when(pane.expanded(cx), |this| {
 7304                                                                        this.child(
 7305                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7306                                                                        )
 7307                                                                    })
 7308                                                                })
 7309                                                            })
 7310                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7311                                                    )
 7312                                                    .child(
 7313                                                        div()
 7314                                                            .w_full()
 7315                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7316                                                    ),
 7317                                            ),
 7318
 7319                                        BottomDockLayout::Contained => div()
 7320                                            .flex()
 7321                                            .flex_row()
 7322                                            .h_full()
 7323                                            .children(self.render_dock(
 7324                                                DockPosition::Left,
 7325                                                &self.left_dock,
 7326                                                window,
 7327                                                cx,
 7328                                            ))
 7329                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7330                                                this.when(pane.expanded(cx), |this| {
 7331                                                    this.child(
 7332                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7333                                                    )
 7334                                                })
 7335                                            })
 7336                                            .child(
 7337                                                div()
 7338                                                    .flex()
 7339                                                    .flex_col()
 7340                                                    .flex_1()
 7341                                                    .overflow_hidden()
 7342                                                    .child(
 7343                                                        h_flex()
 7344                                                            .flex_1()
 7345                                                            .when_some(paddings.0, |this, p| {
 7346                                                                this.child(p.border_r_1())
 7347                                                            })
 7348                                                            .child(self.center.render(
 7349                                                                self.zoomed.as_ref(),
 7350                                                                &PaneRenderContext {
 7351                                                                    follower_states:
 7352                                                                        &self.follower_states,
 7353                                                                    active_call: self.active_call(),
 7354                                                                    active_pane: &self.active_pane,
 7355                                                                    app_state: &self.app_state,
 7356                                                                    project: &self.project,
 7357                                                                    workspace: &self.weak_self,
 7358                                                                },
 7359                                                                window,
 7360                                                                cx,
 7361                                                            ))
 7362                                                            .when_some(paddings.1, |this, p| {
 7363                                                                this.child(p.border_l_1())
 7364                                                            }),
 7365                                                    )
 7366                                                    .children(self.render_dock(
 7367                                                        DockPosition::Bottom,
 7368                                                        &self.bottom_dock,
 7369                                                        window,
 7370                                                        cx,
 7371                                                    )),
 7372                                            )
 7373                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7374                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7375                                                    this.when(pane.expanded(cx), |this| {
 7376                                                        this.child(
 7377                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7378                                                        )
 7379                                                    })
 7380                                                })
 7381                                            })
 7382                                            .children(self.render_dock(
 7383                                                DockPosition::Right,
 7384                                                &self.right_dock,
 7385                                                window,
 7386                                                cx,
 7387                                            )),
 7388                                    }
 7389                                })
 7390                                .children(self.zoomed.as_ref().and_then(|view| {
 7391                                    let zoomed_view = view.upgrade()?;
 7392                                    let div = div()
 7393                                        .occlude()
 7394                                        .absolute()
 7395                                        .overflow_hidden()
 7396                                        .border_color(colors.border)
 7397                                        .bg(colors.background)
 7398                                        .child(zoomed_view)
 7399                                        .inset_0()
 7400                                        .shadow_lg();
 7401
 7402                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7403                                       return Some(div);
 7404                                    }
 7405
 7406                                    Some(match self.zoomed_position {
 7407                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7408                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7409                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7410                                        None => {
 7411                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7412                                        }
 7413                                    })
 7414                                }))
 7415                                .children(self.render_notifications(window, cx)),
 7416                        )
 7417                        .when(self.status_bar_visible(cx), |parent| {
 7418                            parent.child(self.status_bar.clone())
 7419                        })
 7420                        .child(self.modal_layer.clone())
 7421                        .child(self.toast_layer.clone()),
 7422                ),
 7423            window,
 7424            cx,
 7425        )
 7426    }
 7427}
 7428
 7429impl WorkspaceStore {
 7430    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7431        Self {
 7432            workspaces: Default::default(),
 7433            _subscriptions: vec![
 7434                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7435                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7436            ],
 7437            client,
 7438        }
 7439    }
 7440
 7441    pub fn update_followers(
 7442        &self,
 7443        project_id: Option<u64>,
 7444        update: proto::update_followers::Variant,
 7445        cx: &App,
 7446    ) -> Option<()> {
 7447        let active_call = ActiveCall::try_global(cx)?;
 7448        let room_id = active_call.read(cx).room()?.read(cx).id();
 7449        self.client
 7450            .send(proto::UpdateFollowers {
 7451                room_id,
 7452                project_id,
 7453                variant: Some(update),
 7454            })
 7455            .log_err()
 7456    }
 7457
 7458    pub async fn handle_follow(
 7459        this: Entity<Self>,
 7460        envelope: TypedEnvelope<proto::Follow>,
 7461        mut cx: AsyncApp,
 7462    ) -> Result<proto::FollowResponse> {
 7463        this.update(&mut cx, |this, cx| {
 7464            let follower = Follower {
 7465                project_id: envelope.payload.project_id,
 7466                peer_id: envelope.original_sender_id()?,
 7467            };
 7468
 7469            let mut response = proto::FollowResponse::default();
 7470            this.workspaces.retain(|workspace| {
 7471                workspace
 7472                    .update(cx, |workspace, window, cx| {
 7473                        let handler_response =
 7474                            workspace.handle_follow(follower.project_id, window, cx);
 7475                        if let Some(active_view) = handler_response.active_view
 7476                            && workspace.project.read(cx).remote_id() == follower.project_id
 7477                        {
 7478                            response.active_view = Some(active_view)
 7479                        }
 7480                    })
 7481                    .is_ok()
 7482            });
 7483
 7484            Ok(response)
 7485        })?
 7486    }
 7487
 7488    async fn handle_update_followers(
 7489        this: Entity<Self>,
 7490        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7491        mut cx: AsyncApp,
 7492    ) -> Result<()> {
 7493        let leader_id = envelope.original_sender_id()?;
 7494        let update = envelope.payload;
 7495
 7496        this.update(&mut cx, |this, cx| {
 7497            this.workspaces.retain(|workspace| {
 7498                workspace
 7499                    .update(cx, |workspace, window, cx| {
 7500                        let project_id = workspace.project.read(cx).remote_id();
 7501                        if update.project_id != project_id && update.project_id.is_some() {
 7502                            return;
 7503                        }
 7504                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7505                    })
 7506                    .is_ok()
 7507            });
 7508            Ok(())
 7509        })?
 7510    }
 7511
 7512    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7513        &self.workspaces
 7514    }
 7515}
 7516
 7517impl ViewId {
 7518    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7519        Ok(Self {
 7520            creator: message
 7521                .creator
 7522                .map(CollaboratorId::PeerId)
 7523                .context("creator is missing")?,
 7524            id: message.id,
 7525        })
 7526    }
 7527
 7528    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7529        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7530            Some(proto::ViewId {
 7531                creator: Some(peer_id),
 7532                id: self.id,
 7533            })
 7534        } else {
 7535            None
 7536        }
 7537    }
 7538}
 7539
 7540impl FollowerState {
 7541    fn pane(&self) -> &Entity<Pane> {
 7542        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7543    }
 7544}
 7545
 7546pub trait WorkspaceHandle {
 7547    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7548}
 7549
 7550impl WorkspaceHandle for Entity<Workspace> {
 7551    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7552        self.read(cx)
 7553            .worktrees(cx)
 7554            .flat_map(|worktree| {
 7555                let worktree_id = worktree.read(cx).id();
 7556                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7557                    worktree_id,
 7558                    path: f.path.clone(),
 7559                })
 7560            })
 7561            .collect::<Vec<_>>()
 7562    }
 7563}
 7564
 7565pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7566    DB.last_workspace().await.log_err().flatten()
 7567}
 7568
 7569pub fn last_session_workspace_locations(
 7570    last_session_id: &str,
 7571    last_session_window_stack: Option<Vec<WindowId>>,
 7572) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7573    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7574        .log_err()
 7575}
 7576
 7577actions!(
 7578    collab,
 7579    [
 7580        /// Opens the channel notes for the current call.
 7581        ///
 7582        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7583        /// channel in the collab panel.
 7584        ///
 7585        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7586        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7587        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7588        OpenChannelNotes,
 7589        /// Mutes your microphone.
 7590        Mute,
 7591        /// Deafens yourself (mute both microphone and speakers).
 7592        Deafen,
 7593        /// Leaves the current call.
 7594        LeaveCall,
 7595        /// Shares the current project with collaborators.
 7596        ShareProject,
 7597        /// Shares your screen with collaborators.
 7598        ScreenShare,
 7599        /// Copies the current room name and session id for debugging purposes.
 7600        CopyRoomId,
 7601    ]
 7602);
 7603actions!(
 7604    zed,
 7605    [
 7606        /// Opens the Zed log file.
 7607        OpenLog,
 7608        /// Reveals the Zed log file in the system file manager.
 7609        RevealLogInFileManager
 7610    ]
 7611);
 7612
 7613async fn join_channel_internal(
 7614    channel_id: ChannelId,
 7615    app_state: &Arc<AppState>,
 7616    requesting_window: Option<WindowHandle<Workspace>>,
 7617    active_call: &Entity<ActiveCall>,
 7618    cx: &mut AsyncApp,
 7619) -> Result<bool> {
 7620    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7621        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7622            return (false, None);
 7623        };
 7624
 7625        let already_in_channel = room.channel_id() == Some(channel_id);
 7626        let should_prompt = room.is_sharing_project()
 7627            && !room.remote_participants().is_empty()
 7628            && !already_in_channel;
 7629        let open_room = if already_in_channel {
 7630            active_call.room().cloned()
 7631        } else {
 7632            None
 7633        };
 7634        (should_prompt, open_room)
 7635    })?;
 7636
 7637    if let Some(room) = open_room {
 7638        let task = room.update(cx, |room, cx| {
 7639            if let Some((project, host)) = room.most_active_project(cx) {
 7640                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7641            }
 7642
 7643            None
 7644        })?;
 7645        if let Some(task) = task {
 7646            task.await?;
 7647        }
 7648        return anyhow::Ok(true);
 7649    }
 7650
 7651    if should_prompt {
 7652        if let Some(workspace) = requesting_window {
 7653            let answer = workspace
 7654                .update(cx, |_, window, cx| {
 7655                    window.prompt(
 7656                        PromptLevel::Warning,
 7657                        "Do you want to switch channels?",
 7658                        Some("Leaving this call will unshare your current project."),
 7659                        &["Yes, Join Channel", "Cancel"],
 7660                        cx,
 7661                    )
 7662                })?
 7663                .await;
 7664
 7665            if answer == Ok(1) {
 7666                return Ok(false);
 7667            }
 7668        } else {
 7669            return Ok(false); // unreachable!() hopefully
 7670        }
 7671    }
 7672
 7673    let client = cx.update(|cx| active_call.read(cx).client())?;
 7674
 7675    let mut client_status = client.status();
 7676
 7677    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7678    'outer: loop {
 7679        let Some(status) = client_status.recv().await else {
 7680            anyhow::bail!("error connecting");
 7681        };
 7682
 7683        match status {
 7684            Status::Connecting
 7685            | Status::Authenticating
 7686            | Status::Authenticated
 7687            | Status::Reconnecting
 7688            | Status::Reauthenticating
 7689            | Status::Reauthenticated => continue,
 7690            Status::Connected { .. } => break 'outer,
 7691            Status::SignedOut | Status::AuthenticationError => {
 7692                return Err(ErrorCode::SignedOut.into());
 7693            }
 7694            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7695            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7696                return Err(ErrorCode::Disconnected.into());
 7697            }
 7698        }
 7699    }
 7700
 7701    let room = active_call
 7702        .update(cx, |active_call, cx| {
 7703            active_call.join_channel(channel_id, cx)
 7704        })?
 7705        .await?;
 7706
 7707    let Some(room) = room else {
 7708        return anyhow::Ok(true);
 7709    };
 7710
 7711    room.update(cx, |room, _| room.room_update_completed())?
 7712        .await;
 7713
 7714    let task = room.update(cx, |room, cx| {
 7715        if let Some((project, host)) = room.most_active_project(cx) {
 7716            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7717        }
 7718
 7719        // If you are the first to join a channel, see if you should share your project.
 7720        if room.remote_participants().is_empty()
 7721            && !room.local_participant_is_guest()
 7722            && let Some(workspace) = requesting_window
 7723        {
 7724            let project = workspace.update(cx, |workspace, _, cx| {
 7725                let project = workspace.project.read(cx);
 7726
 7727                if !CallSettings::get_global(cx).share_on_join {
 7728                    return None;
 7729                }
 7730
 7731                if (project.is_local() || project.is_via_remote_server())
 7732                    && project.visible_worktrees(cx).any(|tree| {
 7733                        tree.read(cx)
 7734                            .root_entry()
 7735                            .is_some_and(|entry| entry.is_dir())
 7736                    })
 7737                {
 7738                    Some(workspace.project.clone())
 7739                } else {
 7740                    None
 7741                }
 7742            });
 7743            if let Ok(Some(project)) = project {
 7744                return Some(cx.spawn(async move |room, cx| {
 7745                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7746                        .await?;
 7747                    Ok(())
 7748                }));
 7749            }
 7750        }
 7751
 7752        None
 7753    })?;
 7754    if let Some(task) = task {
 7755        task.await?;
 7756        return anyhow::Ok(true);
 7757    }
 7758    anyhow::Ok(false)
 7759}
 7760
 7761pub fn join_channel(
 7762    channel_id: ChannelId,
 7763    app_state: Arc<AppState>,
 7764    requesting_window: Option<WindowHandle<Workspace>>,
 7765    cx: &mut App,
 7766) -> Task<Result<()>> {
 7767    let active_call = ActiveCall::global(cx);
 7768    cx.spawn(async move |cx| {
 7769        let result =
 7770            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7771                .await;
 7772
 7773        // join channel succeeded, and opened a window
 7774        if matches!(result, Ok(true)) {
 7775            return anyhow::Ok(());
 7776        }
 7777
 7778        // find an existing workspace to focus and show call controls
 7779        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7780        if active_window.is_none() {
 7781            // no open workspaces, make one to show the error in (blergh)
 7782            let (window_handle, _) = cx
 7783                .update(|cx| {
 7784                    Workspace::new_local(
 7785                        vec![],
 7786                        app_state.clone(),
 7787                        requesting_window,
 7788                        None,
 7789                        None,
 7790                        cx,
 7791                    )
 7792                })?
 7793                .await?;
 7794
 7795            if result.is_ok() {
 7796                cx.update(|cx| {
 7797                    cx.dispatch_action(&OpenChannelNotes);
 7798                })
 7799                .log_err();
 7800            }
 7801
 7802            active_window = Some(window_handle);
 7803        }
 7804
 7805        if let Err(err) = result {
 7806            log::error!("failed to join channel: {}", err);
 7807            if let Some(active_window) = active_window {
 7808                active_window
 7809                    .update(cx, |_, window, cx| {
 7810                        let detail: SharedString = match err.error_code() {
 7811                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7812                            ErrorCode::UpgradeRequired => concat!(
 7813                                "Your are running an unsupported version of Zed. ",
 7814                                "Please update to continue."
 7815                            )
 7816                            .into(),
 7817                            ErrorCode::NoSuchChannel => concat!(
 7818                                "No matching channel was found. ",
 7819                                "Please check the link and try again."
 7820                            )
 7821                            .into(),
 7822                            ErrorCode::Forbidden => concat!(
 7823                                "This channel is private, and you do not have access. ",
 7824                                "Please ask someone to add you and try again."
 7825                            )
 7826                            .into(),
 7827                            ErrorCode::Disconnected => {
 7828                                "Please check your internet connection and try again.".into()
 7829                            }
 7830                            _ => format!("{}\n\nPlease try again.", err).into(),
 7831                        };
 7832                        window.prompt(
 7833                            PromptLevel::Critical,
 7834                            "Failed to join channel",
 7835                            Some(&detail),
 7836                            &["Ok"],
 7837                            cx,
 7838                        )
 7839                    })?
 7840                    .await
 7841                    .ok();
 7842            }
 7843        }
 7844
 7845        // return ok, we showed the error to the user.
 7846        anyhow::Ok(())
 7847    })
 7848}
 7849
 7850pub async fn get_any_active_workspace(
 7851    app_state: Arc<AppState>,
 7852    mut cx: AsyncApp,
 7853) -> anyhow::Result<WindowHandle<Workspace>> {
 7854    // find an existing workspace to focus and show call controls
 7855    let active_window = activate_any_workspace_window(&mut cx);
 7856    if active_window.is_none() {
 7857        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7858            .await?;
 7859    }
 7860    activate_any_workspace_window(&mut cx).context("could not open zed")
 7861}
 7862
 7863fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7864    cx.update(|cx| {
 7865        if let Some(workspace_window) = cx
 7866            .active_window()
 7867            .and_then(|window| window.downcast::<Workspace>())
 7868        {
 7869            return Some(workspace_window);
 7870        }
 7871
 7872        for window in cx.windows() {
 7873            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7874                workspace_window
 7875                    .update(cx, |_, window, _| window.activate_window())
 7876                    .ok();
 7877                return Some(workspace_window);
 7878            }
 7879        }
 7880        None
 7881    })
 7882    .ok()
 7883    .flatten()
 7884}
 7885
 7886pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7887    cx.windows()
 7888        .into_iter()
 7889        .filter_map(|window| window.downcast::<Workspace>())
 7890        .filter(|workspace| {
 7891            workspace
 7892                .read(cx)
 7893                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7894        })
 7895        .collect()
 7896}
 7897
 7898#[derive(Default)]
 7899pub struct OpenOptions {
 7900    pub visible: Option<OpenVisible>,
 7901    pub focus: Option<bool>,
 7902    pub open_new_workspace: Option<bool>,
 7903    pub prefer_focused_window: bool,
 7904    pub replace_window: Option<WindowHandle<Workspace>>,
 7905    pub env: Option<HashMap<String, String>>,
 7906}
 7907
 7908#[allow(clippy::type_complexity)]
 7909pub fn open_paths(
 7910    abs_paths: &[PathBuf],
 7911    app_state: Arc<AppState>,
 7912    open_options: OpenOptions,
 7913    cx: &mut App,
 7914) -> Task<
 7915    anyhow::Result<(
 7916        WindowHandle<Workspace>,
 7917        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7918    )>,
 7919> {
 7920    let abs_paths = abs_paths.to_vec();
 7921    let mut existing = None;
 7922    let mut best_match = None;
 7923    let mut open_visible = OpenVisible::All;
 7924    #[cfg(target_os = "windows")]
 7925    let wsl_path = abs_paths
 7926        .iter()
 7927        .find_map(|p| util::paths::WslPath::from_path(p));
 7928
 7929    cx.spawn(async move |cx| {
 7930        if open_options.open_new_workspace != Some(true) {
 7931            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7932            let all_metadatas = futures::future::join_all(all_paths)
 7933                .await
 7934                .into_iter()
 7935                .filter_map(|result| result.ok().flatten())
 7936                .collect::<Vec<_>>();
 7937
 7938            cx.update(|cx| {
 7939                for window in local_workspace_windows(cx) {
 7940                    if let Ok(workspace) = window.read(cx) {
 7941                        let m = workspace.project.read(cx).visibility_for_paths(
 7942                            &abs_paths,
 7943                            &all_metadatas,
 7944                            open_options.open_new_workspace == None,
 7945                            cx,
 7946                        );
 7947                        if m > best_match {
 7948                            existing = Some(window);
 7949                            best_match = m;
 7950                        } else if best_match.is_none()
 7951                            && open_options.open_new_workspace == Some(false)
 7952                        {
 7953                            existing = Some(window)
 7954                        }
 7955                    }
 7956                }
 7957            })?;
 7958
 7959            if open_options.open_new_workspace.is_none()
 7960                && (existing.is_none() || open_options.prefer_focused_window)
 7961                && all_metadatas.iter().all(|file| !file.is_dir)
 7962            {
 7963                cx.update(|cx| {
 7964                    if let Some(window) = cx
 7965                        .active_window()
 7966                        .and_then(|window| window.downcast::<Workspace>())
 7967                        && let Ok(workspace) = window.read(cx)
 7968                    {
 7969                        let project = workspace.project().read(cx);
 7970                        if project.is_local() && !project.is_via_collab() {
 7971                            existing = Some(window);
 7972                            open_visible = OpenVisible::None;
 7973                            return;
 7974                        }
 7975                    }
 7976                    for window in local_workspace_windows(cx) {
 7977                        if let Ok(workspace) = window.read(cx) {
 7978                            let project = workspace.project().read(cx);
 7979                            if project.is_via_collab() {
 7980                                continue;
 7981                            }
 7982                            existing = Some(window);
 7983                            open_visible = OpenVisible::None;
 7984                            break;
 7985                        }
 7986                    }
 7987                })?;
 7988            }
 7989        }
 7990
 7991        let result = if let Some(existing) = existing {
 7992            let open_task = existing
 7993                .update(cx, |workspace, window, cx| {
 7994                    window.activate_window();
 7995                    workspace.open_paths(
 7996                        abs_paths,
 7997                        OpenOptions {
 7998                            visible: Some(open_visible),
 7999                            ..Default::default()
 8000                        },
 8001                        None,
 8002                        window,
 8003                        cx,
 8004                    )
 8005                })?
 8006                .await;
 8007
 8008            _ = existing.update(cx, |workspace, _, cx| {
 8009                for item in open_task.iter().flatten() {
 8010                    if let Err(e) = item {
 8011                        workspace.show_error(&e, cx);
 8012                    }
 8013                }
 8014            });
 8015
 8016            Ok((existing, open_task))
 8017        } else {
 8018            cx.update(move |cx| {
 8019                Workspace::new_local(
 8020                    abs_paths,
 8021                    app_state.clone(),
 8022                    open_options.replace_window,
 8023                    open_options.env,
 8024                    None,
 8025                    cx,
 8026                )
 8027            })?
 8028            .await
 8029        };
 8030
 8031        #[cfg(target_os = "windows")]
 8032        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8033            && let Ok((workspace, _)) = &result
 8034        {
 8035            workspace
 8036                .update(cx, move |workspace, _window, cx| {
 8037                    struct OpenInWsl;
 8038                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8039                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8040                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8041                        cx.new(move |cx| {
 8042                            MessageNotification::new(msg, cx)
 8043                                .primary_message("Open in WSL")
 8044                                .primary_icon(IconName::FolderOpen)
 8045                                .primary_on_click(move |window, cx| {
 8046                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8047                                            distro: remote::WslConnectionOptions {
 8048                                                    distro_name: distro.clone(),
 8049                                                user: None,
 8050                                            },
 8051                                            paths: vec![path.clone().into()],
 8052                                        }), cx)
 8053                                })
 8054                        })
 8055                    });
 8056                })
 8057                .unwrap();
 8058        };
 8059        result
 8060    })
 8061}
 8062
 8063pub fn open_new(
 8064    open_options: OpenOptions,
 8065    app_state: Arc<AppState>,
 8066    cx: &mut App,
 8067    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8068) -> Task<anyhow::Result<()>> {
 8069    let task = Workspace::new_local(
 8070        Vec::new(),
 8071        app_state,
 8072        None,
 8073        open_options.env,
 8074        Some(Box::new(init)),
 8075        cx,
 8076    );
 8077    cx.spawn(async move |_cx| {
 8078        let (_workspace, _opened_paths) = task.await?;
 8079        // Init callback is called synchronously during workspace creation
 8080        Ok(())
 8081    })
 8082}
 8083
 8084pub fn create_and_open_local_file(
 8085    path: &'static Path,
 8086    window: &mut Window,
 8087    cx: &mut Context<Workspace>,
 8088    default_content: impl 'static + Send + FnOnce() -> Rope,
 8089) -> Task<Result<Box<dyn ItemHandle>>> {
 8090    cx.spawn_in(window, async move |workspace, cx| {
 8091        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8092        if !fs.is_file(path).await {
 8093            fs.create_file(path, Default::default()).await?;
 8094            fs.save(path, &default_content(), Default::default())
 8095                .await?;
 8096        }
 8097
 8098        let mut items = workspace
 8099            .update_in(cx, |workspace, window, cx| {
 8100                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8101                    workspace.open_paths(
 8102                        vec![path.to_path_buf()],
 8103                        OpenOptions {
 8104                            visible: Some(OpenVisible::None),
 8105                            ..Default::default()
 8106                        },
 8107                        None,
 8108                        window,
 8109                        cx,
 8110                    )
 8111                })
 8112            })?
 8113            .await?
 8114            .await;
 8115
 8116        let item = items.pop().flatten();
 8117        item.with_context(|| format!("path {path:?} is not a file"))?
 8118    })
 8119}
 8120
 8121pub fn open_remote_project_with_new_connection(
 8122    window: WindowHandle<Workspace>,
 8123    remote_connection: Arc<dyn RemoteConnection>,
 8124    cancel_rx: oneshot::Receiver<()>,
 8125    delegate: Arc<dyn RemoteClientDelegate>,
 8126    app_state: Arc<AppState>,
 8127    paths: Vec<PathBuf>,
 8128    cx: &mut App,
 8129) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8130    cx.spawn(async move |cx| {
 8131        let (workspace_id, serialized_workspace) =
 8132            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8133                .await?;
 8134
 8135        let session = match cx
 8136            .update(|cx| {
 8137                remote::RemoteClient::new(
 8138                    ConnectionIdentifier::Workspace(workspace_id.0),
 8139                    remote_connection,
 8140                    cancel_rx,
 8141                    delegate,
 8142                    cx,
 8143                )
 8144            })?
 8145            .await?
 8146        {
 8147            Some(result) => result,
 8148            None => return Ok(Vec::new()),
 8149        };
 8150
 8151        let project = cx.update(|cx| {
 8152            project::Project::remote(
 8153                session,
 8154                app_state.client.clone(),
 8155                app_state.node_runtime.clone(),
 8156                app_state.user_store.clone(),
 8157                app_state.languages.clone(),
 8158                app_state.fs.clone(),
 8159                true,
 8160                cx,
 8161            )
 8162        })?;
 8163
 8164        open_remote_project_inner(
 8165            project,
 8166            paths,
 8167            workspace_id,
 8168            serialized_workspace,
 8169            app_state,
 8170            window,
 8171            cx,
 8172        )
 8173        .await
 8174    })
 8175}
 8176
 8177pub fn open_remote_project_with_existing_connection(
 8178    connection_options: RemoteConnectionOptions,
 8179    project: Entity<Project>,
 8180    paths: Vec<PathBuf>,
 8181    app_state: Arc<AppState>,
 8182    window: WindowHandle<Workspace>,
 8183    cx: &mut AsyncApp,
 8184) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8185    cx.spawn(async move |cx| {
 8186        let (workspace_id, serialized_workspace) =
 8187            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8188
 8189        open_remote_project_inner(
 8190            project,
 8191            paths,
 8192            workspace_id,
 8193            serialized_workspace,
 8194            app_state,
 8195            window,
 8196            cx,
 8197        )
 8198        .await
 8199    })
 8200}
 8201
 8202async fn open_remote_project_inner(
 8203    project: Entity<Project>,
 8204    paths: Vec<PathBuf>,
 8205    workspace_id: WorkspaceId,
 8206    serialized_workspace: Option<SerializedWorkspace>,
 8207    app_state: Arc<AppState>,
 8208    window: WindowHandle<Workspace>,
 8209    cx: &mut AsyncApp,
 8210) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8211    let toolchains = DB.toolchains(workspace_id).await?;
 8212    for (toolchain, worktree_id, path) in toolchains {
 8213        project
 8214            .update(cx, |this, cx| {
 8215                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8216            })?
 8217            .await;
 8218    }
 8219    let mut project_paths_to_open = vec![];
 8220    let mut project_path_errors = vec![];
 8221
 8222    for path in paths {
 8223        let result = cx
 8224            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8225            .await;
 8226        match result {
 8227            Ok((_, project_path)) => {
 8228                project_paths_to_open.push((path.clone(), Some(project_path)));
 8229            }
 8230            Err(error) => {
 8231                project_path_errors.push(error);
 8232            }
 8233        };
 8234    }
 8235
 8236    if project_paths_to_open.is_empty() {
 8237        return Err(project_path_errors.pop().context("no paths given")?);
 8238    }
 8239
 8240    if let Some(detach_session_task) = window
 8241        .update(cx, |_workspace, window, cx| {
 8242            cx.spawn_in(window, async move |this, cx| {
 8243                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8244            })
 8245        })
 8246        .ok()
 8247    {
 8248        detach_session_task.await.ok();
 8249    }
 8250
 8251    cx.update_window(window.into(), |_, window, cx| {
 8252        window.replace_root(cx, |window, cx| {
 8253            telemetry::event!("SSH Project Opened");
 8254
 8255            let mut workspace =
 8256                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8257            workspace.update_history(cx);
 8258
 8259            if let Some(ref serialized) = serialized_workspace {
 8260                workspace.centered_layout = serialized.centered_layout;
 8261            }
 8262
 8263            workspace
 8264        });
 8265    })?;
 8266
 8267    let items = window
 8268        .update(cx, |_, window, cx| {
 8269            window.activate_window();
 8270            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8271        })?
 8272        .await?;
 8273
 8274    window.update(cx, |workspace, _, cx| {
 8275        for error in project_path_errors {
 8276            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8277                if let Some(path) = error.error_tag("path") {
 8278                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8279                }
 8280            } else {
 8281                workspace.show_error(&error, cx)
 8282            }
 8283        }
 8284    })?;
 8285
 8286    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8287}
 8288
 8289fn deserialize_remote_project(
 8290    connection_options: RemoteConnectionOptions,
 8291    paths: Vec<PathBuf>,
 8292    cx: &AsyncApp,
 8293) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8294    cx.background_spawn(async move {
 8295        let remote_connection_id = persistence::DB
 8296            .get_or_create_remote_connection(connection_options)
 8297            .await?;
 8298
 8299        let serialized_workspace =
 8300            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8301
 8302        let workspace_id = if let Some(workspace_id) =
 8303            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8304        {
 8305            workspace_id
 8306        } else {
 8307            persistence::DB.next_id().await?
 8308        };
 8309
 8310        Ok((workspace_id, serialized_workspace))
 8311    })
 8312}
 8313
 8314pub fn join_in_room_project(
 8315    project_id: u64,
 8316    follow_user_id: u64,
 8317    app_state: Arc<AppState>,
 8318    cx: &mut App,
 8319) -> Task<Result<()>> {
 8320    let windows = cx.windows();
 8321    cx.spawn(async move |cx| {
 8322        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8323            window_handle
 8324                .downcast::<Workspace>()
 8325                .and_then(|window_handle| {
 8326                    window_handle
 8327                        .update(cx, |workspace, _window, cx| {
 8328                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8329                                Some(window_handle)
 8330                            } else {
 8331                                None
 8332                            }
 8333                        })
 8334                        .unwrap_or(None)
 8335                })
 8336        });
 8337
 8338        let workspace = if let Some(existing_workspace) = existing_workspace {
 8339            existing_workspace
 8340        } else {
 8341            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8342            let room = active_call
 8343                .read_with(cx, |call, _| call.room().cloned())?
 8344                .context("not in a call")?;
 8345            let project = room
 8346                .update(cx, |room, cx| {
 8347                    room.join_project(
 8348                        project_id,
 8349                        app_state.languages.clone(),
 8350                        app_state.fs.clone(),
 8351                        cx,
 8352                    )
 8353                })?
 8354                .await?;
 8355
 8356            let window_bounds_override = window_bounds_env_override();
 8357            cx.update(|cx| {
 8358                let mut options = (app_state.build_window_options)(None, cx);
 8359                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8360                cx.open_window(options, |window, cx| {
 8361                    cx.new(|cx| {
 8362                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8363                    })
 8364                })
 8365            })??
 8366        };
 8367
 8368        workspace.update(cx, |workspace, window, cx| {
 8369            cx.activate(true);
 8370            window.activate_window();
 8371
 8372            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8373                let follow_peer_id = room
 8374                    .read(cx)
 8375                    .remote_participants()
 8376                    .iter()
 8377                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8378                    .map(|(_, p)| p.peer_id)
 8379                    .or_else(|| {
 8380                        // If we couldn't follow the given user, follow the host instead.
 8381                        let collaborator = workspace
 8382                            .project()
 8383                            .read(cx)
 8384                            .collaborators()
 8385                            .values()
 8386                            .find(|collaborator| collaborator.is_host)?;
 8387                        Some(collaborator.peer_id)
 8388                    });
 8389
 8390                if let Some(follow_peer_id) = follow_peer_id {
 8391                    workspace.follow(follow_peer_id, window, cx);
 8392                }
 8393            }
 8394        })?;
 8395
 8396        anyhow::Ok(())
 8397    })
 8398}
 8399
 8400pub fn reload(cx: &mut App) {
 8401    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8402    let mut workspace_windows = cx
 8403        .windows()
 8404        .into_iter()
 8405        .filter_map(|window| window.downcast::<Workspace>())
 8406        .collect::<Vec<_>>();
 8407
 8408    // If multiple windows have unsaved changes, and need a save prompt,
 8409    // prompt in the active window before switching to a different window.
 8410    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8411
 8412    let mut prompt = None;
 8413    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8414        prompt = window
 8415            .update(cx, |_, window, cx| {
 8416                window.prompt(
 8417                    PromptLevel::Info,
 8418                    "Are you sure you want to restart?",
 8419                    None,
 8420                    &["Restart", "Cancel"],
 8421                    cx,
 8422                )
 8423            })
 8424            .ok();
 8425    }
 8426
 8427    cx.spawn(async move |cx| {
 8428        if let Some(prompt) = prompt {
 8429            let answer = prompt.await?;
 8430            if answer != 0 {
 8431                return Ok(());
 8432            }
 8433        }
 8434
 8435        // If the user cancels any save prompt, then keep the app open.
 8436        for window in workspace_windows {
 8437            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8438                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8439            }) && !should_close.await?
 8440            {
 8441                return Ok(());
 8442            }
 8443        }
 8444        cx.update(|cx| cx.restart())
 8445    })
 8446    .detach_and_log_err(cx);
 8447}
 8448
 8449fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8450    let mut parts = value.split(',');
 8451    let x: usize = parts.next()?.parse().ok()?;
 8452    let y: usize = parts.next()?.parse().ok()?;
 8453    Some(point(px(x as f32), px(y as f32)))
 8454}
 8455
 8456fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8457    let mut parts = value.split(',');
 8458    let width: usize = parts.next()?.parse().ok()?;
 8459    let height: usize = parts.next()?.parse().ok()?;
 8460    Some(size(px(width as f32), px(height as f32)))
 8461}
 8462
 8463/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8464pub fn client_side_decorations(
 8465    element: impl IntoElement,
 8466    window: &mut Window,
 8467    cx: &mut App,
 8468) -> Stateful<Div> {
 8469    const BORDER_SIZE: Pixels = px(1.0);
 8470    let decorations = window.window_decorations();
 8471
 8472    match decorations {
 8473        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8474        Decorations::Server => window.set_client_inset(px(0.0)),
 8475    }
 8476
 8477    struct GlobalResizeEdge(ResizeEdge);
 8478    impl Global for GlobalResizeEdge {}
 8479
 8480    div()
 8481        .id("window-backdrop")
 8482        .bg(transparent_black())
 8483        .map(|div| match decorations {
 8484            Decorations::Server => div,
 8485            Decorations::Client { tiling, .. } => div
 8486                .when(!(tiling.top || tiling.right), |div| {
 8487                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8488                })
 8489                .when(!(tiling.top || tiling.left), |div| {
 8490                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8491                })
 8492                .when(!(tiling.bottom || tiling.right), |div| {
 8493                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8494                })
 8495                .when(!(tiling.bottom || tiling.left), |div| {
 8496                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8497                })
 8498                .when(!tiling.top, |div| {
 8499                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8500                })
 8501                .when(!tiling.bottom, |div| {
 8502                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8503                })
 8504                .when(!tiling.left, |div| {
 8505                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8506                })
 8507                .when(!tiling.right, |div| {
 8508                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8509                })
 8510                .on_mouse_move(move |e, window, cx| {
 8511                    let size = window.window_bounds().get_bounds().size;
 8512                    let pos = e.position;
 8513
 8514                    let new_edge =
 8515                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8516
 8517                    let edge = cx.try_global::<GlobalResizeEdge>();
 8518                    if new_edge != edge.map(|edge| edge.0) {
 8519                        window
 8520                            .window_handle()
 8521                            .update(cx, |workspace, _, cx| {
 8522                                cx.notify(workspace.entity_id());
 8523                            })
 8524                            .ok();
 8525                    }
 8526                })
 8527                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8528                    let size = window.window_bounds().get_bounds().size;
 8529                    let pos = e.position;
 8530
 8531                    let edge = match resize_edge(
 8532                        pos,
 8533                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8534                        size,
 8535                        tiling,
 8536                    ) {
 8537                        Some(value) => value,
 8538                        None => return,
 8539                    };
 8540
 8541                    window.start_window_resize(edge);
 8542                }),
 8543        })
 8544        .size_full()
 8545        .child(
 8546            div()
 8547                .cursor(CursorStyle::Arrow)
 8548                .map(|div| match decorations {
 8549                    Decorations::Server => div,
 8550                    Decorations::Client { tiling } => div
 8551                        .border_color(cx.theme().colors().border)
 8552                        .when(!(tiling.top || tiling.right), |div| {
 8553                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8554                        })
 8555                        .when(!(tiling.top || tiling.left), |div| {
 8556                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8557                        })
 8558                        .when(!(tiling.bottom || tiling.right), |div| {
 8559                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8560                        })
 8561                        .when(!(tiling.bottom || tiling.left), |div| {
 8562                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8563                        })
 8564                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8565                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8566                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8567                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8568                        .when(!tiling.is_tiled(), |div| {
 8569                            div.shadow(vec![gpui::BoxShadow {
 8570                                color: Hsla {
 8571                                    h: 0.,
 8572                                    s: 0.,
 8573                                    l: 0.,
 8574                                    a: 0.4,
 8575                                },
 8576                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8577                                spread_radius: px(0.),
 8578                                offset: point(px(0.0), px(0.0)),
 8579                            }])
 8580                        }),
 8581                })
 8582                .on_mouse_move(|_e, _, cx| {
 8583                    cx.stop_propagation();
 8584                })
 8585                .size_full()
 8586                .child(element),
 8587        )
 8588        .map(|div| match decorations {
 8589            Decorations::Server => div,
 8590            Decorations::Client { tiling, .. } => div.child(
 8591                canvas(
 8592                    |_bounds, window, _| {
 8593                        window.insert_hitbox(
 8594                            Bounds::new(
 8595                                point(px(0.0), px(0.0)),
 8596                                window.window_bounds().get_bounds().size,
 8597                            ),
 8598                            HitboxBehavior::Normal,
 8599                        )
 8600                    },
 8601                    move |_bounds, hitbox, window, cx| {
 8602                        let mouse = window.mouse_position();
 8603                        let size = window.window_bounds().get_bounds().size;
 8604                        let Some(edge) =
 8605                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8606                        else {
 8607                            return;
 8608                        };
 8609                        cx.set_global(GlobalResizeEdge(edge));
 8610                        window.set_cursor_style(
 8611                            match edge {
 8612                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8613                                ResizeEdge::Left | ResizeEdge::Right => {
 8614                                    CursorStyle::ResizeLeftRight
 8615                                }
 8616                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8617                                    CursorStyle::ResizeUpLeftDownRight
 8618                                }
 8619                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8620                                    CursorStyle::ResizeUpRightDownLeft
 8621                                }
 8622                            },
 8623                            &hitbox,
 8624                        );
 8625                    },
 8626                )
 8627                .size_full()
 8628                .absolute(),
 8629            ),
 8630        })
 8631}
 8632
 8633fn resize_edge(
 8634    pos: Point<Pixels>,
 8635    shadow_size: Pixels,
 8636    window_size: Size<Pixels>,
 8637    tiling: Tiling,
 8638) -> Option<ResizeEdge> {
 8639    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8640    if bounds.contains(&pos) {
 8641        return None;
 8642    }
 8643
 8644    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8645    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8646    if !tiling.top && top_left_bounds.contains(&pos) {
 8647        return Some(ResizeEdge::TopLeft);
 8648    }
 8649
 8650    let top_right_bounds = Bounds::new(
 8651        Point::new(window_size.width - corner_size.width, px(0.)),
 8652        corner_size,
 8653    );
 8654    if !tiling.top && top_right_bounds.contains(&pos) {
 8655        return Some(ResizeEdge::TopRight);
 8656    }
 8657
 8658    let bottom_left_bounds = Bounds::new(
 8659        Point::new(px(0.), window_size.height - corner_size.height),
 8660        corner_size,
 8661    );
 8662    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8663        return Some(ResizeEdge::BottomLeft);
 8664    }
 8665
 8666    let bottom_right_bounds = Bounds::new(
 8667        Point::new(
 8668            window_size.width - corner_size.width,
 8669            window_size.height - corner_size.height,
 8670        ),
 8671        corner_size,
 8672    );
 8673    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8674        return Some(ResizeEdge::BottomRight);
 8675    }
 8676
 8677    if !tiling.top && pos.y < shadow_size {
 8678        Some(ResizeEdge::Top)
 8679    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8680        Some(ResizeEdge::Bottom)
 8681    } else if !tiling.left && pos.x < shadow_size {
 8682        Some(ResizeEdge::Left)
 8683    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8684        Some(ResizeEdge::Right)
 8685    } else {
 8686        None
 8687    }
 8688}
 8689
 8690fn join_pane_into_active(
 8691    active_pane: &Entity<Pane>,
 8692    pane: &Entity<Pane>,
 8693    window: &mut Window,
 8694    cx: &mut App,
 8695) {
 8696    if pane == active_pane {
 8697    } else if pane.read(cx).items_len() == 0 {
 8698        pane.update(cx, |_, cx| {
 8699            cx.emit(pane::Event::Remove {
 8700                focus_on_pane: None,
 8701            });
 8702        })
 8703    } else {
 8704        move_all_items(pane, active_pane, window, cx);
 8705    }
 8706}
 8707
 8708fn move_all_items(
 8709    from_pane: &Entity<Pane>,
 8710    to_pane: &Entity<Pane>,
 8711    window: &mut Window,
 8712    cx: &mut App,
 8713) {
 8714    let destination_is_different = from_pane != to_pane;
 8715    let mut moved_items = 0;
 8716    for (item_ix, item_handle) in from_pane
 8717        .read(cx)
 8718        .items()
 8719        .enumerate()
 8720        .map(|(ix, item)| (ix, item.clone()))
 8721        .collect::<Vec<_>>()
 8722    {
 8723        let ix = item_ix - moved_items;
 8724        if destination_is_different {
 8725            // Close item from previous pane
 8726            from_pane.update(cx, |source, cx| {
 8727                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8728            });
 8729            moved_items += 1;
 8730        }
 8731
 8732        // This automatically removes duplicate items in the pane
 8733        to_pane.update(cx, |destination, cx| {
 8734            destination.add_item(item_handle, true, true, None, window, cx);
 8735            window.focus(&destination.focus_handle(cx), cx)
 8736        });
 8737    }
 8738}
 8739
 8740pub fn move_item(
 8741    source: &Entity<Pane>,
 8742    destination: &Entity<Pane>,
 8743    item_id_to_move: EntityId,
 8744    destination_index: usize,
 8745    activate: bool,
 8746    window: &mut Window,
 8747    cx: &mut App,
 8748) {
 8749    let Some((item_ix, item_handle)) = source
 8750        .read(cx)
 8751        .items()
 8752        .enumerate()
 8753        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8754        .map(|(ix, item)| (ix, item.clone()))
 8755    else {
 8756        // Tab was closed during drag
 8757        return;
 8758    };
 8759
 8760    if source != destination {
 8761        // Close item from previous pane
 8762        source.update(cx, |source, cx| {
 8763            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8764        });
 8765    }
 8766
 8767    // This automatically removes duplicate items in the pane
 8768    destination.update(cx, |destination, cx| {
 8769        destination.add_item_inner(
 8770            item_handle,
 8771            activate,
 8772            activate,
 8773            activate,
 8774            Some(destination_index),
 8775            window,
 8776            cx,
 8777        );
 8778        if activate {
 8779            window.focus(&destination.focus_handle(cx), cx)
 8780        }
 8781    });
 8782}
 8783
 8784pub fn move_active_item(
 8785    source: &Entity<Pane>,
 8786    destination: &Entity<Pane>,
 8787    focus_destination: bool,
 8788    close_if_empty: bool,
 8789    window: &mut Window,
 8790    cx: &mut App,
 8791) {
 8792    if source == destination {
 8793        return;
 8794    }
 8795    let Some(active_item) = source.read(cx).active_item() else {
 8796        return;
 8797    };
 8798    source.update(cx, |source_pane, cx| {
 8799        let item_id = active_item.item_id();
 8800        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8801        destination.update(cx, |target_pane, cx| {
 8802            target_pane.add_item(
 8803                active_item,
 8804                focus_destination,
 8805                focus_destination,
 8806                Some(target_pane.items_len()),
 8807                window,
 8808                cx,
 8809            );
 8810        });
 8811    });
 8812}
 8813
 8814pub fn clone_active_item(
 8815    workspace_id: Option<WorkspaceId>,
 8816    source: &Entity<Pane>,
 8817    destination: &Entity<Pane>,
 8818    focus_destination: bool,
 8819    window: &mut Window,
 8820    cx: &mut App,
 8821) {
 8822    if source == destination {
 8823        return;
 8824    }
 8825    let Some(active_item) = source.read(cx).active_item() else {
 8826        return;
 8827    };
 8828    if !active_item.can_split(cx) {
 8829        return;
 8830    }
 8831    let destination = destination.downgrade();
 8832    let task = active_item.clone_on_split(workspace_id, window, cx);
 8833    window
 8834        .spawn(cx, async move |cx| {
 8835            let Some(clone) = task.await else {
 8836                return;
 8837            };
 8838            destination
 8839                .update_in(cx, |target_pane, window, cx| {
 8840                    target_pane.add_item(
 8841                        clone,
 8842                        focus_destination,
 8843                        focus_destination,
 8844                        Some(target_pane.items_len()),
 8845                        window,
 8846                        cx,
 8847                    );
 8848                })
 8849                .log_err();
 8850        })
 8851        .detach();
 8852}
 8853
 8854#[derive(Debug)]
 8855pub struct WorkspacePosition {
 8856    pub window_bounds: Option<WindowBounds>,
 8857    pub display: Option<Uuid>,
 8858    pub centered_layout: bool,
 8859}
 8860
 8861pub fn remote_workspace_position_from_db(
 8862    connection_options: RemoteConnectionOptions,
 8863    paths_to_open: &[PathBuf],
 8864    cx: &App,
 8865) -> Task<Result<WorkspacePosition>> {
 8866    let paths = paths_to_open.to_vec();
 8867
 8868    cx.background_spawn(async move {
 8869        let remote_connection_id = persistence::DB
 8870            .get_or_create_remote_connection(connection_options)
 8871            .await
 8872            .context("fetching serialized ssh project")?;
 8873        let serialized_workspace =
 8874            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8875
 8876        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8877            (Some(WindowBounds::Windowed(bounds)), None)
 8878        } else {
 8879            let restorable_bounds = serialized_workspace
 8880                .as_ref()
 8881                .and_then(|workspace| {
 8882                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8883                })
 8884                .or_else(|| persistence::read_default_window_bounds());
 8885
 8886            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8887                (Some(serialized_bounds), Some(serialized_display))
 8888            } else {
 8889                (None, None)
 8890            }
 8891        };
 8892
 8893        let centered_layout = serialized_workspace
 8894            .as_ref()
 8895            .map(|w| w.centered_layout)
 8896            .unwrap_or(false);
 8897
 8898        Ok(WorkspacePosition {
 8899            window_bounds,
 8900            display,
 8901            centered_layout,
 8902        })
 8903    })
 8904}
 8905
 8906pub fn with_active_or_new_workspace(
 8907    cx: &mut App,
 8908    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8909) {
 8910    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8911        Some(workspace) => {
 8912            cx.defer(move |cx| {
 8913                workspace
 8914                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8915                    .log_err();
 8916            });
 8917        }
 8918        None => {
 8919            let app_state = AppState::global(cx);
 8920            if let Some(app_state) = app_state.upgrade() {
 8921                open_new(
 8922                    OpenOptions::default(),
 8923                    app_state,
 8924                    cx,
 8925                    move |workspace, window, cx| f(workspace, window, cx),
 8926                )
 8927                .detach_and_log_err(cx);
 8928            }
 8929        }
 8930    }
 8931}
 8932
 8933#[cfg(test)]
 8934mod tests {
 8935    use std::{cell::RefCell, rc::Rc};
 8936
 8937    use super::*;
 8938    use crate::{
 8939        dock::{PanelEvent, test::TestPanel},
 8940        item::{
 8941            ItemBufferKind, ItemEvent,
 8942            test::{TestItem, TestProjectItem},
 8943        },
 8944    };
 8945    use fs::FakeFs;
 8946    use gpui::{
 8947        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8948        UpdateGlobal, VisualTestContext, px,
 8949    };
 8950    use project::{Project, ProjectEntryId};
 8951    use serde_json::json;
 8952    use settings::SettingsStore;
 8953    use util::rel_path::rel_path;
 8954
 8955    #[gpui::test]
 8956    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8957        init_test(cx);
 8958
 8959        let fs = FakeFs::new(cx.executor());
 8960        let project = Project::test(fs, [], cx).await;
 8961        let (workspace, cx) =
 8962            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8963
 8964        // Adding an item with no ambiguity renders the tab without detail.
 8965        let item1 = cx.new(|cx| {
 8966            let mut item = TestItem::new(cx);
 8967            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8968            item
 8969        });
 8970        workspace.update_in(cx, |workspace, window, cx| {
 8971            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8972        });
 8973        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8974
 8975        // Adding an item that creates ambiguity increases the level of detail on
 8976        // both tabs.
 8977        let item2 = cx.new_window_entity(|_window, cx| {
 8978            let mut item = TestItem::new(cx);
 8979            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8980            item
 8981        });
 8982        workspace.update_in(cx, |workspace, window, cx| {
 8983            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8984        });
 8985        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8986        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8987
 8988        // Adding an item that creates ambiguity increases the level of detail only
 8989        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8990        // we stop at the highest detail available.
 8991        let item3 = cx.new(|cx| {
 8992            let mut item = TestItem::new(cx);
 8993            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8994            item
 8995        });
 8996        workspace.update_in(cx, |workspace, window, cx| {
 8997            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8998        });
 8999        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9000        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9001        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9002    }
 9003
 9004    #[gpui::test]
 9005    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9006        init_test(cx);
 9007
 9008        let fs = FakeFs::new(cx.executor());
 9009        fs.insert_tree(
 9010            "/root1",
 9011            json!({
 9012                "one.txt": "",
 9013                "two.txt": "",
 9014            }),
 9015        )
 9016        .await;
 9017        fs.insert_tree(
 9018            "/root2",
 9019            json!({
 9020                "three.txt": "",
 9021            }),
 9022        )
 9023        .await;
 9024
 9025        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9026        let (workspace, cx) =
 9027            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9028        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9029        let worktree_id = project.update(cx, |project, cx| {
 9030            project.worktrees(cx).next().unwrap().read(cx).id()
 9031        });
 9032
 9033        let item1 = cx.new(|cx| {
 9034            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9035        });
 9036        let item2 = cx.new(|cx| {
 9037            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9038        });
 9039
 9040        // Add an item to an empty pane
 9041        workspace.update_in(cx, |workspace, window, cx| {
 9042            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9043        });
 9044        project.update(cx, |project, cx| {
 9045            assert_eq!(
 9046                project.active_entry(),
 9047                project
 9048                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9049                    .map(|e| e.id)
 9050            );
 9051        });
 9052        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9053
 9054        // Add a second item to a non-empty pane
 9055        workspace.update_in(cx, |workspace, window, cx| {
 9056            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9057        });
 9058        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9059        project.update(cx, |project, cx| {
 9060            assert_eq!(
 9061                project.active_entry(),
 9062                project
 9063                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9064                    .map(|e| e.id)
 9065            );
 9066        });
 9067
 9068        // Close the active item
 9069        pane.update_in(cx, |pane, window, cx| {
 9070            pane.close_active_item(&Default::default(), window, cx)
 9071        })
 9072        .await
 9073        .unwrap();
 9074        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9075        project.update(cx, |project, cx| {
 9076            assert_eq!(
 9077                project.active_entry(),
 9078                project
 9079                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9080                    .map(|e| e.id)
 9081            );
 9082        });
 9083
 9084        // Add a project folder
 9085        project
 9086            .update(cx, |project, cx| {
 9087                project.find_or_create_worktree("root2", true, cx)
 9088            })
 9089            .await
 9090            .unwrap();
 9091        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9092
 9093        // Remove a project folder
 9094        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9095        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9096    }
 9097
 9098    #[gpui::test]
 9099    async fn test_close_window(cx: &mut TestAppContext) {
 9100        init_test(cx);
 9101
 9102        let fs = FakeFs::new(cx.executor());
 9103        fs.insert_tree("/root", json!({ "one": "" })).await;
 9104
 9105        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9106        let (workspace, cx) =
 9107            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9108
 9109        // When there are no dirty items, there's nothing to do.
 9110        let item1 = cx.new(TestItem::new);
 9111        workspace.update_in(cx, |w, window, cx| {
 9112            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9113        });
 9114        let task = workspace.update_in(cx, |w, window, cx| {
 9115            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9116        });
 9117        assert!(task.await.unwrap());
 9118
 9119        // When there are dirty untitled items, prompt to save each one. If the user
 9120        // cancels any prompt, then abort.
 9121        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9122        let item3 = cx.new(|cx| {
 9123            TestItem::new(cx)
 9124                .with_dirty(true)
 9125                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9126        });
 9127        workspace.update_in(cx, |w, window, cx| {
 9128            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9129            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9130        });
 9131        let task = workspace.update_in(cx, |w, window, cx| {
 9132            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9133        });
 9134        cx.executor().run_until_parked();
 9135        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9136        cx.executor().run_until_parked();
 9137        assert!(!cx.has_pending_prompt());
 9138        assert!(!task.await.unwrap());
 9139    }
 9140
 9141    #[gpui::test]
 9142    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9143        init_test(cx);
 9144
 9145        // Register TestItem as a serializable item
 9146        cx.update(|cx| {
 9147            register_serializable_item::<TestItem>(cx);
 9148        });
 9149
 9150        let fs = FakeFs::new(cx.executor());
 9151        fs.insert_tree("/root", json!({ "one": "" })).await;
 9152
 9153        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9154        let (workspace, cx) =
 9155            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9156
 9157        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9158        let item1 = cx.new(|cx| {
 9159            TestItem::new(cx)
 9160                .with_dirty(true)
 9161                .with_serialize(|| Some(Task::ready(Ok(()))))
 9162        });
 9163        let item2 = cx.new(|cx| {
 9164            TestItem::new(cx)
 9165                .with_dirty(true)
 9166                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9167                .with_serialize(|| Some(Task::ready(Ok(()))))
 9168        });
 9169        workspace.update_in(cx, |w, window, cx| {
 9170            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9171            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9172        });
 9173        let task = workspace.update_in(cx, |w, window, cx| {
 9174            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9175        });
 9176        assert!(task.await.unwrap());
 9177    }
 9178
 9179    #[gpui::test]
 9180    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9181        init_test(cx);
 9182
 9183        let fs = FakeFs::new(cx.executor());
 9184
 9185        let project = Project::test(fs, None, cx).await;
 9186        let (workspace, cx) =
 9187            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9188
 9189        let item1 = cx.new(|cx| {
 9190            TestItem::new(cx)
 9191                .with_dirty(true)
 9192                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9193        });
 9194        let item2 = cx.new(|cx| {
 9195            TestItem::new(cx)
 9196                .with_dirty(true)
 9197                .with_conflict(true)
 9198                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9199        });
 9200        let item3 = cx.new(|cx| {
 9201            TestItem::new(cx)
 9202                .with_dirty(true)
 9203                .with_conflict(true)
 9204                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9205        });
 9206        let item4 = cx.new(|cx| {
 9207            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9208                let project_item = TestProjectItem::new_untitled(cx);
 9209                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9210                project_item
 9211            }])
 9212        });
 9213        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9214            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9215            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9216            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9217            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9218            workspace.active_pane().clone()
 9219        });
 9220
 9221        let close_items = pane.update_in(cx, |pane, window, cx| {
 9222            pane.activate_item(1, true, true, window, cx);
 9223            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9224            let item1_id = item1.item_id();
 9225            let item3_id = item3.item_id();
 9226            let item4_id = item4.item_id();
 9227            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9228                [item1_id, item3_id, item4_id].contains(&id)
 9229            })
 9230        });
 9231        cx.executor().run_until_parked();
 9232
 9233        assert!(cx.has_pending_prompt());
 9234        cx.simulate_prompt_answer("Save all");
 9235
 9236        cx.executor().run_until_parked();
 9237
 9238        // Item 1 is saved. There's a prompt to save item 3.
 9239        pane.update(cx, |pane, cx| {
 9240            assert_eq!(item1.read(cx).save_count, 1);
 9241            assert_eq!(item1.read(cx).save_as_count, 0);
 9242            assert_eq!(item1.read(cx).reload_count, 0);
 9243            assert_eq!(pane.items_len(), 3);
 9244            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9245        });
 9246        assert!(cx.has_pending_prompt());
 9247
 9248        // Cancel saving item 3.
 9249        cx.simulate_prompt_answer("Discard");
 9250        cx.executor().run_until_parked();
 9251
 9252        // Item 3 is reloaded. There's a prompt to save item 4.
 9253        pane.update(cx, |pane, cx| {
 9254            assert_eq!(item3.read(cx).save_count, 0);
 9255            assert_eq!(item3.read(cx).save_as_count, 0);
 9256            assert_eq!(item3.read(cx).reload_count, 1);
 9257            assert_eq!(pane.items_len(), 2);
 9258            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9259        });
 9260
 9261        // There's a prompt for a path for item 4.
 9262        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9263        close_items.await.unwrap();
 9264
 9265        // The requested items are closed.
 9266        pane.update(cx, |pane, cx| {
 9267            assert_eq!(item4.read(cx).save_count, 0);
 9268            assert_eq!(item4.read(cx).save_as_count, 1);
 9269            assert_eq!(item4.read(cx).reload_count, 0);
 9270            assert_eq!(pane.items_len(), 1);
 9271            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9272        });
 9273    }
 9274
 9275    #[gpui::test]
 9276    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9277        init_test(cx);
 9278
 9279        let fs = FakeFs::new(cx.executor());
 9280        let project = Project::test(fs, [], cx).await;
 9281        let (workspace, cx) =
 9282            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9283
 9284        // Create several workspace items with single project entries, and two
 9285        // workspace items with multiple project entries.
 9286        let single_entry_items = (0..=4)
 9287            .map(|project_entry_id| {
 9288                cx.new(|cx| {
 9289                    TestItem::new(cx)
 9290                        .with_dirty(true)
 9291                        .with_project_items(&[dirty_project_item(
 9292                            project_entry_id,
 9293                            &format!("{project_entry_id}.txt"),
 9294                            cx,
 9295                        )])
 9296                })
 9297            })
 9298            .collect::<Vec<_>>();
 9299        let item_2_3 = cx.new(|cx| {
 9300            TestItem::new(cx)
 9301                .with_dirty(true)
 9302                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9303                .with_project_items(&[
 9304                    single_entry_items[2].read(cx).project_items[0].clone(),
 9305                    single_entry_items[3].read(cx).project_items[0].clone(),
 9306                ])
 9307        });
 9308        let item_3_4 = cx.new(|cx| {
 9309            TestItem::new(cx)
 9310                .with_dirty(true)
 9311                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9312                .with_project_items(&[
 9313                    single_entry_items[3].read(cx).project_items[0].clone(),
 9314                    single_entry_items[4].read(cx).project_items[0].clone(),
 9315                ])
 9316        });
 9317
 9318        // Create two panes that contain the following project entries:
 9319        //   left pane:
 9320        //     multi-entry items:   (2, 3)
 9321        //     single-entry items:  0, 2, 3, 4
 9322        //   right pane:
 9323        //     single-entry items:  4, 1
 9324        //     multi-entry items:   (3, 4)
 9325        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9326            let left_pane = workspace.active_pane().clone();
 9327            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9328            workspace.add_item_to_active_pane(
 9329                single_entry_items[0].boxed_clone(),
 9330                None,
 9331                true,
 9332                window,
 9333                cx,
 9334            );
 9335            workspace.add_item_to_active_pane(
 9336                single_entry_items[2].boxed_clone(),
 9337                None,
 9338                true,
 9339                window,
 9340                cx,
 9341            );
 9342            workspace.add_item_to_active_pane(
 9343                single_entry_items[3].boxed_clone(),
 9344                None,
 9345                true,
 9346                window,
 9347                cx,
 9348            );
 9349            workspace.add_item_to_active_pane(
 9350                single_entry_items[4].boxed_clone(),
 9351                None,
 9352                true,
 9353                window,
 9354                cx,
 9355            );
 9356
 9357            let right_pane =
 9358                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9359
 9360            let boxed_clone = single_entry_items[1].boxed_clone();
 9361            let right_pane = window.spawn(cx, async move |cx| {
 9362                right_pane.await.inspect(|right_pane| {
 9363                    right_pane
 9364                        .update_in(cx, |pane, window, cx| {
 9365                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9366                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9367                        })
 9368                        .unwrap();
 9369                })
 9370            });
 9371
 9372            (left_pane, right_pane)
 9373        });
 9374        let right_pane = right_pane.await.unwrap();
 9375        cx.focus(&right_pane);
 9376
 9377        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9378            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9379                .unwrap()
 9380        });
 9381        cx.executor().run_until_parked();
 9382
 9383        let msg = cx.pending_prompt().unwrap().0;
 9384        assert!(msg.contains("1.txt"));
 9385        assert!(!msg.contains("2.txt"));
 9386        assert!(!msg.contains("3.txt"));
 9387        assert!(!msg.contains("4.txt"));
 9388
 9389        cx.simulate_prompt_answer("Cancel");
 9390        close.await;
 9391
 9392        left_pane
 9393            .update_in(cx, |left_pane, window, cx| {
 9394                left_pane.close_item_by_id(
 9395                    single_entry_items[3].entity_id(),
 9396                    SaveIntent::Skip,
 9397                    window,
 9398                    cx,
 9399                )
 9400            })
 9401            .await
 9402            .unwrap();
 9403
 9404        close = right_pane.update_in(cx, |pane, window, cx| {
 9405            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9406                .unwrap()
 9407        });
 9408        cx.executor().run_until_parked();
 9409
 9410        let details = cx.pending_prompt().unwrap().1;
 9411        assert!(details.contains("1.txt"));
 9412        assert!(!details.contains("2.txt"));
 9413        assert!(details.contains("3.txt"));
 9414        // ideally this assertion could be made, but today we can only
 9415        // save whole items not project items, so the orphaned item 3 causes
 9416        // 4 to be saved too.
 9417        // assert!(!details.contains("4.txt"));
 9418
 9419        cx.simulate_prompt_answer("Save all");
 9420
 9421        cx.executor().run_until_parked();
 9422        close.await;
 9423        right_pane.read_with(cx, |pane, _| {
 9424            assert_eq!(pane.items_len(), 0);
 9425        });
 9426    }
 9427
 9428    #[gpui::test]
 9429    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9430        init_test(cx);
 9431
 9432        let fs = FakeFs::new(cx.executor());
 9433        let project = Project::test(fs, [], cx).await;
 9434        let (workspace, cx) =
 9435            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9436        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9437
 9438        let item = cx.new(|cx| {
 9439            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9440        });
 9441        let item_id = item.entity_id();
 9442        workspace.update_in(cx, |workspace, window, cx| {
 9443            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9444        });
 9445
 9446        // Autosave on window change.
 9447        item.update(cx, |item, cx| {
 9448            SettingsStore::update_global(cx, |settings, cx| {
 9449                settings.update_user_settings(cx, |settings| {
 9450                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9451                })
 9452            });
 9453            item.is_dirty = true;
 9454        });
 9455
 9456        // Deactivating the window saves the file.
 9457        cx.deactivate_window();
 9458        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9459
 9460        // Re-activating the window doesn't save the file.
 9461        cx.update(|window, _| window.activate_window());
 9462        cx.executor().run_until_parked();
 9463        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9464
 9465        // Autosave on focus change.
 9466        item.update_in(cx, |item, window, cx| {
 9467            cx.focus_self(window);
 9468            SettingsStore::update_global(cx, |settings, cx| {
 9469                settings.update_user_settings(cx, |settings| {
 9470                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9471                })
 9472            });
 9473            item.is_dirty = true;
 9474        });
 9475        // Blurring the item saves the file.
 9476        item.update_in(cx, |_, window, _| window.blur());
 9477        cx.executor().run_until_parked();
 9478        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9479
 9480        // Deactivating the window still saves the file.
 9481        item.update_in(cx, |item, window, cx| {
 9482            cx.focus_self(window);
 9483            item.is_dirty = true;
 9484        });
 9485        cx.deactivate_window();
 9486        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9487
 9488        // Autosave after delay.
 9489        item.update(cx, |item, cx| {
 9490            SettingsStore::update_global(cx, |settings, cx| {
 9491                settings.update_user_settings(cx, |settings| {
 9492                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9493                        milliseconds: 500.into(),
 9494                    });
 9495                })
 9496            });
 9497            item.is_dirty = true;
 9498            cx.emit(ItemEvent::Edit);
 9499        });
 9500
 9501        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9502        cx.executor().advance_clock(Duration::from_millis(250));
 9503        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9504
 9505        // After delay expires, the file is saved.
 9506        cx.executor().advance_clock(Duration::from_millis(250));
 9507        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9508
 9509        // Autosave after delay, should save earlier than delay if tab is closed
 9510        item.update(cx, |item, cx| {
 9511            item.is_dirty = true;
 9512            cx.emit(ItemEvent::Edit);
 9513        });
 9514        cx.executor().advance_clock(Duration::from_millis(250));
 9515        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9516
 9517        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9518        pane.update_in(cx, |pane, window, cx| {
 9519            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9520        })
 9521        .await
 9522        .unwrap();
 9523        assert!(!cx.has_pending_prompt());
 9524        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9525
 9526        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9527        workspace.update_in(cx, |workspace, window, cx| {
 9528            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9529        });
 9530        item.update_in(cx, |item, _window, cx| {
 9531            item.is_dirty = true;
 9532            for project_item in &mut item.project_items {
 9533                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9534            }
 9535        });
 9536        cx.run_until_parked();
 9537        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9538
 9539        // Autosave on focus change, ensuring closing the tab counts as such.
 9540        item.update(cx, |item, cx| {
 9541            SettingsStore::update_global(cx, |settings, cx| {
 9542                settings.update_user_settings(cx, |settings| {
 9543                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9544                })
 9545            });
 9546            item.is_dirty = true;
 9547            for project_item in &mut item.project_items {
 9548                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9549            }
 9550        });
 9551
 9552        pane.update_in(cx, |pane, window, cx| {
 9553            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9554        })
 9555        .await
 9556        .unwrap();
 9557        assert!(!cx.has_pending_prompt());
 9558        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9559
 9560        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9561        workspace.update_in(cx, |workspace, window, cx| {
 9562            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9563        });
 9564        item.update_in(cx, |item, window, cx| {
 9565            item.project_items[0].update(cx, |item, _| {
 9566                item.entry_id = None;
 9567            });
 9568            item.is_dirty = true;
 9569            window.blur();
 9570        });
 9571        cx.run_until_parked();
 9572        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9573
 9574        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9575        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9576            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9577        });
 9578        cx.run_until_parked();
 9579        assert!(cx.has_pending_prompt());
 9580        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9581    }
 9582
 9583    #[gpui::test]
 9584    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9585        init_test(cx);
 9586
 9587        let fs = FakeFs::new(cx.executor());
 9588
 9589        let project = Project::test(fs, [], cx).await;
 9590        let (workspace, cx) =
 9591            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9592
 9593        let item = cx.new(|cx| {
 9594            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9595        });
 9596        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9597        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9598        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9599
 9600        workspace.update_in(cx, |workspace, window, cx| {
 9601            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9602            let toolbar_notification_count = toolbar_notify_count.clone();
 9603            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9604                *toolbar_notification_count.borrow_mut() += 1
 9605            })
 9606            .detach();
 9607        });
 9608
 9609        pane.read_with(cx, |pane, _| {
 9610            assert!(!pane.can_navigate_backward());
 9611            assert!(!pane.can_navigate_forward());
 9612        });
 9613
 9614        item.update_in(cx, |item, _, cx| {
 9615            item.set_state("one".to_string(), cx);
 9616        });
 9617
 9618        // Toolbar must be notified to re-render the navigation buttons
 9619        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9620
 9621        pane.read_with(cx, |pane, _| {
 9622            assert!(pane.can_navigate_backward());
 9623            assert!(!pane.can_navigate_forward());
 9624        });
 9625
 9626        workspace
 9627            .update_in(cx, |workspace, window, cx| {
 9628                workspace.go_back(pane.downgrade(), window, cx)
 9629            })
 9630            .await
 9631            .unwrap();
 9632
 9633        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9634        pane.read_with(cx, |pane, _| {
 9635            assert!(!pane.can_navigate_backward());
 9636            assert!(pane.can_navigate_forward());
 9637        });
 9638    }
 9639
 9640    #[gpui::test]
 9641    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9642        init_test(cx);
 9643        let fs = FakeFs::new(cx.executor());
 9644
 9645        let project = Project::test(fs, [], cx).await;
 9646        let (workspace, cx) =
 9647            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9648
 9649        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9650            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9651            workspace.add_panel(panel.clone(), window, cx);
 9652
 9653            workspace
 9654                .right_dock()
 9655                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9656
 9657            panel
 9658        });
 9659
 9660        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9661        pane.update_in(cx, |pane, window, cx| {
 9662            let item = cx.new(TestItem::new);
 9663            pane.add_item(Box::new(item), true, true, None, window, cx);
 9664        });
 9665
 9666        // Transfer focus from center to panel
 9667        workspace.update_in(cx, |workspace, window, cx| {
 9668            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9669        });
 9670
 9671        workspace.update_in(cx, |workspace, window, cx| {
 9672            assert!(workspace.right_dock().read(cx).is_open());
 9673            assert!(!panel.is_zoomed(window, cx));
 9674            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9675        });
 9676
 9677        // Transfer focus from panel to center
 9678        workspace.update_in(cx, |workspace, window, cx| {
 9679            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9680        });
 9681
 9682        workspace.update_in(cx, |workspace, window, cx| {
 9683            assert!(workspace.right_dock().read(cx).is_open());
 9684            assert!(!panel.is_zoomed(window, cx));
 9685            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9686        });
 9687
 9688        // Close the dock
 9689        workspace.update_in(cx, |workspace, window, cx| {
 9690            workspace.toggle_dock(DockPosition::Right, window, cx);
 9691        });
 9692
 9693        workspace.update_in(cx, |workspace, window, cx| {
 9694            assert!(!workspace.right_dock().read(cx).is_open());
 9695            assert!(!panel.is_zoomed(window, cx));
 9696            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9697        });
 9698
 9699        // Open the dock
 9700        workspace.update_in(cx, |workspace, window, cx| {
 9701            workspace.toggle_dock(DockPosition::Right, window, cx);
 9702        });
 9703
 9704        workspace.update_in(cx, |workspace, window, cx| {
 9705            assert!(workspace.right_dock().read(cx).is_open());
 9706            assert!(!panel.is_zoomed(window, cx));
 9707            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9708        });
 9709
 9710        // Focus and zoom panel
 9711        panel.update_in(cx, |panel, window, cx| {
 9712            cx.focus_self(window);
 9713            panel.set_zoomed(true, window, cx)
 9714        });
 9715
 9716        workspace.update_in(cx, |workspace, window, cx| {
 9717            assert!(workspace.right_dock().read(cx).is_open());
 9718            assert!(panel.is_zoomed(window, cx));
 9719            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9720        });
 9721
 9722        // Transfer focus to the center closes the dock
 9723        workspace.update_in(cx, |workspace, window, cx| {
 9724            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9725        });
 9726
 9727        workspace.update_in(cx, |workspace, window, cx| {
 9728            assert!(!workspace.right_dock().read(cx).is_open());
 9729            assert!(panel.is_zoomed(window, cx));
 9730            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9731        });
 9732
 9733        // Transferring focus back to the panel keeps it zoomed
 9734        workspace.update_in(cx, |workspace, window, cx| {
 9735            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9736        });
 9737
 9738        workspace.update_in(cx, |workspace, window, cx| {
 9739            assert!(workspace.right_dock().read(cx).is_open());
 9740            assert!(panel.is_zoomed(window, cx));
 9741            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9742        });
 9743
 9744        // Close the dock while it is zoomed
 9745        workspace.update_in(cx, |workspace, window, cx| {
 9746            workspace.toggle_dock(DockPosition::Right, window, cx)
 9747        });
 9748
 9749        workspace.update_in(cx, |workspace, window, cx| {
 9750            assert!(!workspace.right_dock().read(cx).is_open());
 9751            assert!(panel.is_zoomed(window, cx));
 9752            assert!(workspace.zoomed.is_none());
 9753            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9754        });
 9755
 9756        // Opening the dock, when it's zoomed, retains focus
 9757        workspace.update_in(cx, |workspace, window, cx| {
 9758            workspace.toggle_dock(DockPosition::Right, window, cx)
 9759        });
 9760
 9761        workspace.update_in(cx, |workspace, window, cx| {
 9762            assert!(workspace.right_dock().read(cx).is_open());
 9763            assert!(panel.is_zoomed(window, cx));
 9764            assert!(workspace.zoomed.is_some());
 9765            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9766        });
 9767
 9768        // Unzoom and close the panel, zoom the active pane.
 9769        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9770        workspace.update_in(cx, |workspace, window, cx| {
 9771            workspace.toggle_dock(DockPosition::Right, window, cx)
 9772        });
 9773        pane.update_in(cx, |pane, window, cx| {
 9774            pane.toggle_zoom(&Default::default(), window, cx)
 9775        });
 9776
 9777        // Opening a dock unzooms the pane.
 9778        workspace.update_in(cx, |workspace, window, cx| {
 9779            workspace.toggle_dock(DockPosition::Right, window, cx)
 9780        });
 9781        workspace.update_in(cx, |workspace, window, cx| {
 9782            let pane = pane.read(cx);
 9783            assert!(!pane.is_zoomed());
 9784            assert!(!pane.focus_handle(cx).is_focused(window));
 9785            assert!(workspace.right_dock().read(cx).is_open());
 9786            assert!(workspace.zoomed.is_none());
 9787        });
 9788    }
 9789
 9790    #[gpui::test]
 9791    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9792        init_test(cx);
 9793        let fs = FakeFs::new(cx.executor());
 9794
 9795        let project = Project::test(fs, [], cx).await;
 9796        let (workspace, cx) =
 9797            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9798
 9799        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9800            workspace.active_pane().clone()
 9801        });
 9802
 9803        // Add an item to the pane so it can be zoomed
 9804        workspace.update_in(cx, |workspace, window, cx| {
 9805            let item = cx.new(TestItem::new);
 9806            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9807        });
 9808
 9809        // Initially not zoomed
 9810        workspace.update_in(cx, |workspace, _window, cx| {
 9811            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9812            assert!(
 9813                workspace.zoomed.is_none(),
 9814                "Workspace should track no zoomed pane"
 9815            );
 9816            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9817        });
 9818
 9819        // Zoom In
 9820        pane.update_in(cx, |pane, window, cx| {
 9821            pane.zoom_in(&crate::ZoomIn, window, cx);
 9822        });
 9823
 9824        workspace.update_in(cx, |workspace, window, cx| {
 9825            assert!(
 9826                pane.read(cx).is_zoomed(),
 9827                "Pane should be zoomed after ZoomIn"
 9828            );
 9829            assert!(
 9830                workspace.zoomed.is_some(),
 9831                "Workspace should track the zoomed pane"
 9832            );
 9833            assert!(
 9834                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9835                "ZoomIn should focus the pane"
 9836            );
 9837        });
 9838
 9839        // Zoom In again is a no-op
 9840        pane.update_in(cx, |pane, window, cx| {
 9841            pane.zoom_in(&crate::ZoomIn, window, cx);
 9842        });
 9843
 9844        workspace.update_in(cx, |workspace, window, cx| {
 9845            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9846            assert!(
 9847                workspace.zoomed.is_some(),
 9848                "Workspace still tracks zoomed pane"
 9849            );
 9850            assert!(
 9851                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9852                "Pane remains focused after repeated ZoomIn"
 9853            );
 9854        });
 9855
 9856        // Zoom Out
 9857        pane.update_in(cx, |pane, window, cx| {
 9858            pane.zoom_out(&crate::ZoomOut, window, cx);
 9859        });
 9860
 9861        workspace.update_in(cx, |workspace, _window, cx| {
 9862            assert!(
 9863                !pane.read(cx).is_zoomed(),
 9864                "Pane should unzoom after ZoomOut"
 9865            );
 9866            assert!(
 9867                workspace.zoomed.is_none(),
 9868                "Workspace clears zoom tracking after ZoomOut"
 9869            );
 9870        });
 9871
 9872        // Zoom Out again is a no-op
 9873        pane.update_in(cx, |pane, window, cx| {
 9874            pane.zoom_out(&crate::ZoomOut, window, cx);
 9875        });
 9876
 9877        workspace.update_in(cx, |workspace, _window, cx| {
 9878            assert!(
 9879                !pane.read(cx).is_zoomed(),
 9880                "Second ZoomOut keeps pane unzoomed"
 9881            );
 9882            assert!(
 9883                workspace.zoomed.is_none(),
 9884                "Workspace remains without zoomed pane"
 9885            );
 9886        });
 9887    }
 9888
 9889    #[gpui::test]
 9890    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9891        init_test(cx);
 9892        let fs = FakeFs::new(cx.executor());
 9893
 9894        let project = Project::test(fs, [], cx).await;
 9895        let (workspace, cx) =
 9896            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9897        workspace.update_in(cx, |workspace, window, cx| {
 9898            // Open two docks
 9899            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9900            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9901
 9902            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9903            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9904
 9905            assert!(left_dock.read(cx).is_open());
 9906            assert!(right_dock.read(cx).is_open());
 9907        });
 9908
 9909        workspace.update_in(cx, |workspace, window, cx| {
 9910            // Toggle all docks - should close both
 9911            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9912
 9913            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9914            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9915            assert!(!left_dock.read(cx).is_open());
 9916            assert!(!right_dock.read(cx).is_open());
 9917        });
 9918
 9919        workspace.update_in(cx, |workspace, window, cx| {
 9920            // Toggle again - should reopen both
 9921            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9922
 9923            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9924            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9925            assert!(left_dock.read(cx).is_open());
 9926            assert!(right_dock.read(cx).is_open());
 9927        });
 9928    }
 9929
 9930    #[gpui::test]
 9931    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9932        init_test(cx);
 9933        let fs = FakeFs::new(cx.executor());
 9934
 9935        let project = Project::test(fs, [], cx).await;
 9936        let (workspace, cx) =
 9937            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9938        workspace.update_in(cx, |workspace, window, cx| {
 9939            // Open two docks
 9940            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9941            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9942
 9943            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9944            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9945
 9946            assert!(left_dock.read(cx).is_open());
 9947            assert!(right_dock.read(cx).is_open());
 9948        });
 9949
 9950        workspace.update_in(cx, |workspace, window, cx| {
 9951            // Close them manually
 9952            workspace.toggle_dock(DockPosition::Left, window, cx);
 9953            workspace.toggle_dock(DockPosition::Right, window, cx);
 9954
 9955            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9956            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9957            assert!(!left_dock.read(cx).is_open());
 9958            assert!(!right_dock.read(cx).is_open());
 9959        });
 9960
 9961        workspace.update_in(cx, |workspace, window, cx| {
 9962            // Toggle all docks - only last closed (right dock) should reopen
 9963            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9964
 9965            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9966            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9967            assert!(!left_dock.read(cx).is_open());
 9968            assert!(right_dock.read(cx).is_open());
 9969        });
 9970    }
 9971
 9972    #[gpui::test]
 9973    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9974        init_test(cx);
 9975        let fs = FakeFs::new(cx.executor());
 9976        let project = Project::test(fs, [], cx).await;
 9977        let (workspace, cx) =
 9978            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9979
 9980        // Open two docks (left and right) with one panel each
 9981        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9982            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9983            workspace.add_panel(left_panel.clone(), window, cx);
 9984
 9985            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9986            workspace.add_panel(right_panel.clone(), window, cx);
 9987
 9988            workspace.toggle_dock(DockPosition::Left, window, cx);
 9989            workspace.toggle_dock(DockPosition::Right, window, cx);
 9990
 9991            // Verify initial state
 9992            assert!(
 9993                workspace.left_dock().read(cx).is_open(),
 9994                "Left dock should be open"
 9995            );
 9996            assert_eq!(
 9997                workspace
 9998                    .left_dock()
 9999                    .read(cx)
10000                    .visible_panel()
10001                    .unwrap()
10002                    .panel_id(),
10003                left_panel.panel_id(),
10004                "Left panel should be visible in left dock"
10005            );
10006            assert!(
10007                workspace.right_dock().read(cx).is_open(),
10008                "Right dock should be open"
10009            );
10010            assert_eq!(
10011                workspace
10012                    .right_dock()
10013                    .read(cx)
10014                    .visible_panel()
10015                    .unwrap()
10016                    .panel_id(),
10017                right_panel.panel_id(),
10018                "Right panel should be visible in right dock"
10019            );
10020            assert!(
10021                !workspace.bottom_dock().read(cx).is_open(),
10022                "Bottom dock should be closed"
10023            );
10024
10025            (left_panel, right_panel)
10026        });
10027
10028        // Focus the left panel and move it to the next position (bottom dock)
10029        workspace.update_in(cx, |workspace, window, cx| {
10030            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10031            assert!(
10032                left_panel.read(cx).focus_handle(cx).is_focused(window),
10033                "Left panel should be focused"
10034            );
10035        });
10036
10037        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10038
10039        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10040        workspace.update(cx, |workspace, cx| {
10041            assert!(
10042                !workspace.left_dock().read(cx).is_open(),
10043                "Left dock should be closed"
10044            );
10045            assert!(
10046                workspace.bottom_dock().read(cx).is_open(),
10047                "Bottom dock should now be open"
10048            );
10049            assert_eq!(
10050                left_panel.read(cx).position,
10051                DockPosition::Bottom,
10052                "Left panel should now be in the bottom dock"
10053            );
10054            assert_eq!(
10055                workspace
10056                    .bottom_dock()
10057                    .read(cx)
10058                    .visible_panel()
10059                    .unwrap()
10060                    .panel_id(),
10061                left_panel.panel_id(),
10062                "Left panel should be the visible panel in the bottom dock"
10063            );
10064        });
10065
10066        // Toggle all docks off
10067        workspace.update_in(cx, |workspace, window, cx| {
10068            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10069            assert!(
10070                !workspace.left_dock().read(cx).is_open(),
10071                "Left dock should be closed"
10072            );
10073            assert!(
10074                !workspace.right_dock().read(cx).is_open(),
10075                "Right dock should be closed"
10076            );
10077            assert!(
10078                !workspace.bottom_dock().read(cx).is_open(),
10079                "Bottom dock should be closed"
10080            );
10081        });
10082
10083        // Toggle all docks back on and verify positions are restored
10084        workspace.update_in(cx, |workspace, window, cx| {
10085            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10086            assert!(
10087                !workspace.left_dock().read(cx).is_open(),
10088                "Left dock should remain closed"
10089            );
10090            assert!(
10091                workspace.right_dock().read(cx).is_open(),
10092                "Right dock should remain open"
10093            );
10094            assert!(
10095                workspace.bottom_dock().read(cx).is_open(),
10096                "Bottom dock should remain open"
10097            );
10098            assert_eq!(
10099                left_panel.read(cx).position,
10100                DockPosition::Bottom,
10101                "Left panel should remain in the bottom dock"
10102            );
10103            assert_eq!(
10104                right_panel.read(cx).position,
10105                DockPosition::Right,
10106                "Right panel should remain in the right dock"
10107            );
10108            assert_eq!(
10109                workspace
10110                    .bottom_dock()
10111                    .read(cx)
10112                    .visible_panel()
10113                    .unwrap()
10114                    .panel_id(),
10115                left_panel.panel_id(),
10116                "Left panel should be the visible panel in the right dock"
10117            );
10118        });
10119    }
10120
10121    #[gpui::test]
10122    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10123        init_test(cx);
10124
10125        let fs = FakeFs::new(cx.executor());
10126
10127        let project = Project::test(fs, None, cx).await;
10128        let (workspace, cx) =
10129            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10130
10131        // Let's arrange the panes like this:
10132        //
10133        // +-----------------------+
10134        // |         top           |
10135        // +------+--------+-------+
10136        // | left | center | right |
10137        // +------+--------+-------+
10138        // |        bottom         |
10139        // +-----------------------+
10140
10141        let top_item = cx.new(|cx| {
10142            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10143        });
10144        let bottom_item = cx.new(|cx| {
10145            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10146        });
10147        let left_item = cx.new(|cx| {
10148            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10149        });
10150        let right_item = cx.new(|cx| {
10151            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10152        });
10153        let center_item = cx.new(|cx| {
10154            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10155        });
10156
10157        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10158            let top_pane_id = workspace.active_pane().entity_id();
10159            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10160            workspace.split_pane(
10161                workspace.active_pane().clone(),
10162                SplitDirection::Down,
10163                window,
10164                cx,
10165            );
10166            top_pane_id
10167        });
10168        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10169            let bottom_pane_id = workspace.active_pane().entity_id();
10170            workspace.add_item_to_active_pane(
10171                Box::new(bottom_item.clone()),
10172                None,
10173                false,
10174                window,
10175                cx,
10176            );
10177            workspace.split_pane(
10178                workspace.active_pane().clone(),
10179                SplitDirection::Up,
10180                window,
10181                cx,
10182            );
10183            bottom_pane_id
10184        });
10185        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10186            let left_pane_id = workspace.active_pane().entity_id();
10187            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10188            workspace.split_pane(
10189                workspace.active_pane().clone(),
10190                SplitDirection::Right,
10191                window,
10192                cx,
10193            );
10194            left_pane_id
10195        });
10196        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10197            let right_pane_id = workspace.active_pane().entity_id();
10198            workspace.add_item_to_active_pane(
10199                Box::new(right_item.clone()),
10200                None,
10201                false,
10202                window,
10203                cx,
10204            );
10205            workspace.split_pane(
10206                workspace.active_pane().clone(),
10207                SplitDirection::Left,
10208                window,
10209                cx,
10210            );
10211            right_pane_id
10212        });
10213        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10214            let center_pane_id = workspace.active_pane().entity_id();
10215            workspace.add_item_to_active_pane(
10216                Box::new(center_item.clone()),
10217                None,
10218                false,
10219                window,
10220                cx,
10221            );
10222            center_pane_id
10223        });
10224        cx.executor().run_until_parked();
10225
10226        workspace.update_in(cx, |workspace, window, cx| {
10227            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10228
10229            // Join into next from center pane into right
10230            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10231        });
10232
10233        workspace.update_in(cx, |workspace, window, cx| {
10234            let active_pane = workspace.active_pane();
10235            assert_eq!(right_pane_id, active_pane.entity_id());
10236            assert_eq!(2, active_pane.read(cx).items_len());
10237            let item_ids_in_pane =
10238                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10239            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10240            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10241
10242            // Join into next from right pane into bottom
10243            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10244        });
10245
10246        workspace.update_in(cx, |workspace, window, cx| {
10247            let active_pane = workspace.active_pane();
10248            assert_eq!(bottom_pane_id, active_pane.entity_id());
10249            assert_eq!(3, active_pane.read(cx).items_len());
10250            let item_ids_in_pane =
10251                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10252            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10253            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10254            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10255
10256            // Join into next from bottom pane into left
10257            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10258        });
10259
10260        workspace.update_in(cx, |workspace, window, cx| {
10261            let active_pane = workspace.active_pane();
10262            assert_eq!(left_pane_id, active_pane.entity_id());
10263            assert_eq!(4, active_pane.read(cx).items_len());
10264            let item_ids_in_pane =
10265                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10266            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10267            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10268            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10269            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10270
10271            // Join into next from left pane into top
10272            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10273        });
10274
10275        workspace.update_in(cx, |workspace, window, cx| {
10276            let active_pane = workspace.active_pane();
10277            assert_eq!(top_pane_id, active_pane.entity_id());
10278            assert_eq!(5, active_pane.read(cx).items_len());
10279            let item_ids_in_pane =
10280                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10281            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10282            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10283            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10284            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10285            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10286
10287            // Single pane left: no-op
10288            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10289        });
10290
10291        workspace.update(cx, |workspace, _cx| {
10292            let active_pane = workspace.active_pane();
10293            assert_eq!(top_pane_id, active_pane.entity_id());
10294        });
10295    }
10296
10297    fn add_an_item_to_active_pane(
10298        cx: &mut VisualTestContext,
10299        workspace: &Entity<Workspace>,
10300        item_id: u64,
10301    ) -> Entity<TestItem> {
10302        let item = cx.new(|cx| {
10303            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10304                item_id,
10305                "item{item_id}.txt",
10306                cx,
10307            )])
10308        });
10309        workspace.update_in(cx, |workspace, window, cx| {
10310            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10311        });
10312        item
10313    }
10314
10315    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10316        workspace.update_in(cx, |workspace, window, cx| {
10317            workspace.split_pane(
10318                workspace.active_pane().clone(),
10319                SplitDirection::Right,
10320                window,
10321                cx,
10322            )
10323        })
10324    }
10325
10326    #[gpui::test]
10327    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10328        init_test(cx);
10329        let fs = FakeFs::new(cx.executor());
10330        let project = Project::test(fs, None, cx).await;
10331        let (workspace, cx) =
10332            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10333
10334        add_an_item_to_active_pane(cx, &workspace, 1);
10335        split_pane(cx, &workspace);
10336        add_an_item_to_active_pane(cx, &workspace, 2);
10337        split_pane(cx, &workspace); // empty pane
10338        split_pane(cx, &workspace);
10339        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10340
10341        cx.executor().run_until_parked();
10342
10343        workspace.update(cx, |workspace, cx| {
10344            let num_panes = workspace.panes().len();
10345            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10346            let active_item = workspace
10347                .active_pane()
10348                .read(cx)
10349                .active_item()
10350                .expect("item is in focus");
10351
10352            assert_eq!(num_panes, 4);
10353            assert_eq!(num_items_in_current_pane, 1);
10354            assert_eq!(active_item.item_id(), last_item.item_id());
10355        });
10356
10357        workspace.update_in(cx, |workspace, window, cx| {
10358            workspace.join_all_panes(window, cx);
10359        });
10360
10361        workspace.update(cx, |workspace, cx| {
10362            let num_panes = workspace.panes().len();
10363            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10364            let active_item = workspace
10365                .active_pane()
10366                .read(cx)
10367                .active_item()
10368                .expect("item is in focus");
10369
10370            assert_eq!(num_panes, 1);
10371            assert_eq!(num_items_in_current_pane, 3);
10372            assert_eq!(active_item.item_id(), last_item.item_id());
10373        });
10374    }
10375    struct TestModal(FocusHandle);
10376
10377    impl TestModal {
10378        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10379            Self(cx.focus_handle())
10380        }
10381    }
10382
10383    impl EventEmitter<DismissEvent> for TestModal {}
10384
10385    impl Focusable for TestModal {
10386        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10387            self.0.clone()
10388        }
10389    }
10390
10391    impl ModalView for TestModal {}
10392
10393    impl Render for TestModal {
10394        fn render(
10395            &mut self,
10396            _window: &mut Window,
10397            _cx: &mut Context<TestModal>,
10398        ) -> impl IntoElement {
10399            div().track_focus(&self.0)
10400        }
10401    }
10402
10403    #[gpui::test]
10404    async fn test_panels(cx: &mut gpui::TestAppContext) {
10405        init_test(cx);
10406        let fs = FakeFs::new(cx.executor());
10407
10408        let project = Project::test(fs, [], cx).await;
10409        let (workspace, cx) =
10410            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10411
10412        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10413            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10414            workspace.add_panel(panel_1.clone(), window, cx);
10415            workspace.toggle_dock(DockPosition::Left, window, cx);
10416            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10417            workspace.add_panel(panel_2.clone(), window, cx);
10418            workspace.toggle_dock(DockPosition::Right, window, cx);
10419
10420            let left_dock = workspace.left_dock();
10421            assert_eq!(
10422                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10423                panel_1.panel_id()
10424            );
10425            assert_eq!(
10426                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10427                panel_1.size(window, cx)
10428            );
10429
10430            left_dock.update(cx, |left_dock, cx| {
10431                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10432            });
10433            assert_eq!(
10434                workspace
10435                    .right_dock()
10436                    .read(cx)
10437                    .visible_panel()
10438                    .unwrap()
10439                    .panel_id(),
10440                panel_2.panel_id(),
10441            );
10442
10443            (panel_1, panel_2)
10444        });
10445
10446        // Move panel_1 to the right
10447        panel_1.update_in(cx, |panel_1, window, cx| {
10448            panel_1.set_position(DockPosition::Right, window, cx)
10449        });
10450
10451        workspace.update_in(cx, |workspace, window, cx| {
10452            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10453            // Since it was the only panel on the left, the left dock should now be closed.
10454            assert!(!workspace.left_dock().read(cx).is_open());
10455            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10456            let right_dock = workspace.right_dock();
10457            assert_eq!(
10458                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10459                panel_1.panel_id()
10460            );
10461            assert_eq!(
10462                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10463                px(1337.)
10464            );
10465
10466            // Now we move panel_2 to the left
10467            panel_2.set_position(DockPosition::Left, window, cx);
10468        });
10469
10470        workspace.update(cx, |workspace, cx| {
10471            // Since panel_2 was not visible on the right, we don't open the left dock.
10472            assert!(!workspace.left_dock().read(cx).is_open());
10473            // And the right dock is unaffected in its displaying of panel_1
10474            assert!(workspace.right_dock().read(cx).is_open());
10475            assert_eq!(
10476                workspace
10477                    .right_dock()
10478                    .read(cx)
10479                    .visible_panel()
10480                    .unwrap()
10481                    .panel_id(),
10482                panel_1.panel_id(),
10483            );
10484        });
10485
10486        // Move panel_1 back to the left
10487        panel_1.update_in(cx, |panel_1, window, cx| {
10488            panel_1.set_position(DockPosition::Left, window, cx)
10489        });
10490
10491        workspace.update_in(cx, |workspace, window, cx| {
10492            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10493            let left_dock = workspace.left_dock();
10494            assert!(left_dock.read(cx).is_open());
10495            assert_eq!(
10496                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10497                panel_1.panel_id()
10498            );
10499            assert_eq!(
10500                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10501                px(1337.)
10502            );
10503            // And the right dock should be closed as it no longer has any panels.
10504            assert!(!workspace.right_dock().read(cx).is_open());
10505
10506            // Now we move panel_1 to the bottom
10507            panel_1.set_position(DockPosition::Bottom, window, cx);
10508        });
10509
10510        workspace.update_in(cx, |workspace, window, cx| {
10511            // Since panel_1 was visible on the left, we close the left dock.
10512            assert!(!workspace.left_dock().read(cx).is_open());
10513            // The bottom dock is sized based on the panel's default size,
10514            // since the panel orientation changed from vertical to horizontal.
10515            let bottom_dock = workspace.bottom_dock();
10516            assert_eq!(
10517                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10518                panel_1.size(window, cx),
10519            );
10520            // Close bottom dock and move panel_1 back to the left.
10521            bottom_dock.update(cx, |bottom_dock, cx| {
10522                bottom_dock.set_open(false, window, cx)
10523            });
10524            panel_1.set_position(DockPosition::Left, window, cx);
10525        });
10526
10527        // Emit activated event on panel 1
10528        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10529
10530        // Now the left dock is open and panel_1 is active and focused.
10531        workspace.update_in(cx, |workspace, window, cx| {
10532            let left_dock = workspace.left_dock();
10533            assert!(left_dock.read(cx).is_open());
10534            assert_eq!(
10535                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10536                panel_1.panel_id(),
10537            );
10538            assert!(panel_1.focus_handle(cx).is_focused(window));
10539        });
10540
10541        // Emit closed event on panel 2, which is not active
10542        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10543
10544        // Wo don't close the left dock, because panel_2 wasn't the active panel
10545        workspace.update(cx, |workspace, cx| {
10546            let left_dock = workspace.left_dock();
10547            assert!(left_dock.read(cx).is_open());
10548            assert_eq!(
10549                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10550                panel_1.panel_id(),
10551            );
10552        });
10553
10554        // Emitting a ZoomIn event shows the panel as zoomed.
10555        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10556        workspace.read_with(cx, |workspace, _| {
10557            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10558            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10559        });
10560
10561        // Move panel to another dock while it is zoomed
10562        panel_1.update_in(cx, |panel, window, cx| {
10563            panel.set_position(DockPosition::Right, window, cx)
10564        });
10565        workspace.read_with(cx, |workspace, _| {
10566            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10567
10568            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10569        });
10570
10571        // This is a helper for getting a:
10572        // - valid focus on an element,
10573        // - that isn't a part of the panes and panels system of the Workspace,
10574        // - and doesn't trigger the 'on_focus_lost' API.
10575        let focus_other_view = {
10576            let workspace = workspace.clone();
10577            move |cx: &mut VisualTestContext| {
10578                workspace.update_in(cx, |workspace, window, cx| {
10579                    if workspace.active_modal::<TestModal>(cx).is_some() {
10580                        workspace.toggle_modal(window, cx, TestModal::new);
10581                        workspace.toggle_modal(window, cx, TestModal::new);
10582                    } else {
10583                        workspace.toggle_modal(window, cx, TestModal::new);
10584                    }
10585                })
10586            }
10587        };
10588
10589        // If focus is transferred to another view that's not a panel or another pane, we still show
10590        // the panel as zoomed.
10591        focus_other_view(cx);
10592        workspace.read_with(cx, |workspace, _| {
10593            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10594            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10595        });
10596
10597        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10598        workspace.update_in(cx, |_workspace, window, cx| {
10599            cx.focus_self(window);
10600        });
10601        workspace.read_with(cx, |workspace, _| {
10602            assert_eq!(workspace.zoomed, None);
10603            assert_eq!(workspace.zoomed_position, None);
10604        });
10605
10606        // If focus is transferred again to another view that's not a panel or a pane, we won't
10607        // show the panel as zoomed because it wasn't zoomed before.
10608        focus_other_view(cx);
10609        workspace.read_with(cx, |workspace, _| {
10610            assert_eq!(workspace.zoomed, None);
10611            assert_eq!(workspace.zoomed_position, None);
10612        });
10613
10614        // When the panel is activated, it is zoomed again.
10615        cx.dispatch_action(ToggleRightDock);
10616        workspace.read_with(cx, |workspace, _| {
10617            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10618            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10619        });
10620
10621        // Emitting a ZoomOut event unzooms the panel.
10622        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10623        workspace.read_with(cx, |workspace, _| {
10624            assert_eq!(workspace.zoomed, None);
10625            assert_eq!(workspace.zoomed_position, None);
10626        });
10627
10628        // Emit closed event on panel 1, which is active
10629        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10630
10631        // Now the left dock is closed, because panel_1 was the active panel
10632        workspace.update(cx, |workspace, cx| {
10633            let right_dock = workspace.right_dock();
10634            assert!(!right_dock.read(cx).is_open());
10635        });
10636    }
10637
10638    #[gpui::test]
10639    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10640        init_test(cx);
10641
10642        let fs = FakeFs::new(cx.background_executor.clone());
10643        let project = Project::test(fs, [], cx).await;
10644        let (workspace, cx) =
10645            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10646        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10647
10648        let dirty_regular_buffer = cx.new(|cx| {
10649            TestItem::new(cx)
10650                .with_dirty(true)
10651                .with_label("1.txt")
10652                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10653        });
10654        let dirty_regular_buffer_2 = cx.new(|cx| {
10655            TestItem::new(cx)
10656                .with_dirty(true)
10657                .with_label("2.txt")
10658                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10659        });
10660        let dirty_multi_buffer_with_both = cx.new(|cx| {
10661            TestItem::new(cx)
10662                .with_dirty(true)
10663                .with_buffer_kind(ItemBufferKind::Multibuffer)
10664                .with_label("Fake Project Search")
10665                .with_project_items(&[
10666                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10667                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10668                ])
10669        });
10670        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10671        workspace.update_in(cx, |workspace, window, cx| {
10672            workspace.add_item(
10673                pane.clone(),
10674                Box::new(dirty_regular_buffer.clone()),
10675                None,
10676                false,
10677                false,
10678                window,
10679                cx,
10680            );
10681            workspace.add_item(
10682                pane.clone(),
10683                Box::new(dirty_regular_buffer_2.clone()),
10684                None,
10685                false,
10686                false,
10687                window,
10688                cx,
10689            );
10690            workspace.add_item(
10691                pane.clone(),
10692                Box::new(dirty_multi_buffer_with_both.clone()),
10693                None,
10694                false,
10695                false,
10696                window,
10697                cx,
10698            );
10699        });
10700
10701        pane.update_in(cx, |pane, window, cx| {
10702            pane.activate_item(2, true, true, window, cx);
10703            assert_eq!(
10704                pane.active_item().unwrap().item_id(),
10705                multi_buffer_with_both_files_id,
10706                "Should select the multi buffer in the pane"
10707            );
10708        });
10709        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10710            pane.close_other_items(
10711                &CloseOtherItems {
10712                    save_intent: Some(SaveIntent::Save),
10713                    close_pinned: true,
10714                },
10715                None,
10716                window,
10717                cx,
10718            )
10719        });
10720        cx.background_executor.run_until_parked();
10721        assert!(!cx.has_pending_prompt());
10722        close_all_but_multi_buffer_task
10723            .await
10724            .expect("Closing all buffers but the multi buffer failed");
10725        pane.update(cx, |pane, cx| {
10726            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10727            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10728            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10729            assert_eq!(pane.items_len(), 1);
10730            assert_eq!(
10731                pane.active_item().unwrap().item_id(),
10732                multi_buffer_with_both_files_id,
10733                "Should have only the multi buffer left in the pane"
10734            );
10735            assert!(
10736                dirty_multi_buffer_with_both.read(cx).is_dirty,
10737                "The multi buffer containing the unsaved buffer should still be dirty"
10738            );
10739        });
10740
10741        dirty_regular_buffer.update(cx, |buffer, cx| {
10742            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10743        });
10744
10745        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10746            pane.close_active_item(
10747                &CloseActiveItem {
10748                    save_intent: Some(SaveIntent::Close),
10749                    close_pinned: false,
10750                },
10751                window,
10752                cx,
10753            )
10754        });
10755        cx.background_executor.run_until_parked();
10756        assert!(
10757            cx.has_pending_prompt(),
10758            "Dirty multi buffer should prompt a save dialog"
10759        );
10760        cx.simulate_prompt_answer("Save");
10761        cx.background_executor.run_until_parked();
10762        close_multi_buffer_task
10763            .await
10764            .expect("Closing the multi buffer failed");
10765        pane.update(cx, |pane, cx| {
10766            assert_eq!(
10767                dirty_multi_buffer_with_both.read(cx).save_count,
10768                1,
10769                "Multi buffer item should get be saved"
10770            );
10771            // Test impl does not save inner items, so we do not assert them
10772            assert_eq!(
10773                pane.items_len(),
10774                0,
10775                "No more items should be left in the pane"
10776            );
10777            assert!(pane.active_item().is_none());
10778        });
10779    }
10780
10781    #[gpui::test]
10782    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10783        cx: &mut TestAppContext,
10784    ) {
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 clear_regular_buffer = cx.new(|cx| {
10806            TestItem::new(cx)
10807                .with_label("3.txt")
10808                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10809        });
10810
10811        let dirty_multi_buffer_with_both = cx.new(|cx| {
10812            TestItem::new(cx)
10813                .with_dirty(true)
10814                .with_buffer_kind(ItemBufferKind::Multibuffer)
10815                .with_label("Fake Project Search")
10816                .with_project_items(&[
10817                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10818                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10819                    clear_regular_buffer.read(cx).project_items[0].clone(),
10820                ])
10821        });
10822        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10823        workspace.update_in(cx, |workspace, window, cx| {
10824            workspace.add_item(
10825                pane.clone(),
10826                Box::new(dirty_regular_buffer.clone()),
10827                None,
10828                false,
10829                false,
10830                window,
10831                cx,
10832            );
10833            workspace.add_item(
10834                pane.clone(),
10835                Box::new(dirty_multi_buffer_with_both.clone()),
10836                None,
10837                false,
10838                false,
10839                window,
10840                cx,
10841            );
10842        });
10843
10844        pane.update_in(cx, |pane, window, cx| {
10845            pane.activate_item(1, true, true, window, cx);
10846            assert_eq!(
10847                pane.active_item().unwrap().item_id(),
10848                multi_buffer_with_both_files_id,
10849                "Should select the multi buffer in the pane"
10850            );
10851        });
10852        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10853            pane.close_active_item(
10854                &CloseActiveItem {
10855                    save_intent: None,
10856                    close_pinned: false,
10857                },
10858                window,
10859                cx,
10860            )
10861        });
10862        cx.background_executor.run_until_parked();
10863        assert!(
10864            cx.has_pending_prompt(),
10865            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10866        );
10867    }
10868
10869    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10870    /// closed when they are deleted from disk.
10871    #[gpui::test]
10872    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10873        init_test(cx);
10874
10875        // Enable the close_on_disk_deletion setting
10876        cx.update_global(|store: &mut SettingsStore, cx| {
10877            store.update_user_settings(cx, |settings| {
10878                settings.workspace.close_on_file_delete = Some(true);
10879            });
10880        });
10881
10882        let fs = FakeFs::new(cx.background_executor.clone());
10883        let project = Project::test(fs, [], cx).await;
10884        let (workspace, cx) =
10885            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10886        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10887
10888        // Create a test item that simulates a file
10889        let item = cx.new(|cx| {
10890            TestItem::new(cx)
10891                .with_label("test.txt")
10892                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10893        });
10894
10895        // Add item to workspace
10896        workspace.update_in(cx, |workspace, window, cx| {
10897            workspace.add_item(
10898                pane.clone(),
10899                Box::new(item.clone()),
10900                None,
10901                false,
10902                false,
10903                window,
10904                cx,
10905            );
10906        });
10907
10908        // Verify the item is in the pane
10909        pane.read_with(cx, |pane, _| {
10910            assert_eq!(pane.items().count(), 1);
10911        });
10912
10913        // Simulate file deletion by setting the item's deleted state
10914        item.update(cx, |item, _| {
10915            item.set_has_deleted_file(true);
10916        });
10917
10918        // Emit UpdateTab event to trigger the close behavior
10919        cx.run_until_parked();
10920        item.update(cx, |_, cx| {
10921            cx.emit(ItemEvent::UpdateTab);
10922        });
10923
10924        // Allow the close operation to complete
10925        cx.run_until_parked();
10926
10927        // Verify the item was automatically closed
10928        pane.read_with(cx, |pane, _| {
10929            assert_eq!(
10930                pane.items().count(),
10931                0,
10932                "Item should be automatically closed when file is deleted"
10933            );
10934        });
10935    }
10936
10937    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10938    /// open with a strikethrough when they are deleted from disk.
10939    #[gpui::test]
10940    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10941        init_test(cx);
10942
10943        // Ensure close_on_disk_deletion is disabled (default)
10944        cx.update_global(|store: &mut SettingsStore, cx| {
10945            store.update_user_settings(cx, |settings| {
10946                settings.workspace.close_on_file_delete = Some(false);
10947            });
10948        });
10949
10950        let fs = FakeFs::new(cx.background_executor.clone());
10951        let project = Project::test(fs, [], cx).await;
10952        let (workspace, cx) =
10953            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10954        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10955
10956        // Create a test item that simulates a file
10957        let item = cx.new(|cx| {
10958            TestItem::new(cx)
10959                .with_label("test.txt")
10960                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10961        });
10962
10963        // Add item to workspace
10964        workspace.update_in(cx, |workspace, window, cx| {
10965            workspace.add_item(
10966                pane.clone(),
10967                Box::new(item.clone()),
10968                None,
10969                false,
10970                false,
10971                window,
10972                cx,
10973            );
10974        });
10975
10976        // Verify the item is in the pane
10977        pane.read_with(cx, |pane, _| {
10978            assert_eq!(pane.items().count(), 1);
10979        });
10980
10981        // Simulate file deletion
10982        item.update(cx, |item, _| {
10983            item.set_has_deleted_file(true);
10984        });
10985
10986        // Emit UpdateTab event
10987        cx.run_until_parked();
10988        item.update(cx, |_, cx| {
10989            cx.emit(ItemEvent::UpdateTab);
10990        });
10991
10992        // Allow any potential close operation to complete
10993        cx.run_until_parked();
10994
10995        // Verify the item remains open (with strikethrough)
10996        pane.read_with(cx, |pane, _| {
10997            assert_eq!(
10998                pane.items().count(),
10999                1,
11000                "Item should remain open when close_on_disk_deletion is disabled"
11001            );
11002        });
11003
11004        // Verify the item shows as deleted
11005        item.read_with(cx, |item, _| {
11006            assert!(
11007                item.has_deleted_file,
11008                "Item should be marked as having deleted file"
11009            );
11010        });
11011    }
11012
11013    /// Tests that dirty files are not automatically closed when deleted from disk,
11014    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11015    /// unsaved changes without being prompted.
11016    #[gpui::test]
11017    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11018        init_test(cx);
11019
11020        // Enable the close_on_file_delete 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 dirty test item
11034        let item = cx.new(|cx| {
11035            TestItem::new(cx)
11036                .with_dirty(true)
11037                .with_label("test.txt")
11038                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11039        });
11040
11041        // Add item to workspace
11042        workspace.update_in(cx, |workspace, window, cx| {
11043            workspace.add_item(
11044                pane.clone(),
11045                Box::new(item.clone()),
11046                None,
11047                false,
11048                false,
11049                window,
11050                cx,
11051            );
11052        });
11053
11054        // Simulate file deletion
11055        item.update(cx, |item, _| {
11056            item.set_has_deleted_file(true);
11057        });
11058
11059        // Emit UpdateTab event to trigger the close behavior
11060        cx.run_until_parked();
11061        item.update(cx, |_, cx| {
11062            cx.emit(ItemEvent::UpdateTab);
11063        });
11064
11065        // Allow any potential close operation to complete
11066        cx.run_until_parked();
11067
11068        // Verify the item remains open (dirty files are not auto-closed)
11069        pane.read_with(cx, |pane, _| {
11070            assert_eq!(
11071                pane.items().count(),
11072                1,
11073                "Dirty items should not be automatically closed even when file is deleted"
11074            );
11075        });
11076
11077        // Verify the item is marked as deleted and still dirty
11078        item.read_with(cx, |item, _| {
11079            assert!(
11080                item.has_deleted_file,
11081                "Item should be marked as having deleted file"
11082            );
11083            assert!(item.is_dirty, "Item should still be dirty");
11084        });
11085    }
11086
11087    /// Tests that navigation history is cleaned up when files are auto-closed
11088    /// due to deletion from disk.
11089    #[gpui::test]
11090    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11091        init_test(cx);
11092
11093        // Enable the close_on_file_delete setting
11094        cx.update_global(|store: &mut SettingsStore, cx| {
11095            store.update_user_settings(cx, |settings| {
11096                settings.workspace.close_on_file_delete = Some(true);
11097            });
11098        });
11099
11100        let fs = FakeFs::new(cx.background_executor.clone());
11101        let project = Project::test(fs, [], cx).await;
11102        let (workspace, cx) =
11103            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11104        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11105
11106        // Create test items
11107        let item1 = cx.new(|cx| {
11108            TestItem::new(cx)
11109                .with_label("test1.txt")
11110                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11111        });
11112        let item1_id = item1.item_id();
11113
11114        let item2 = cx.new(|cx| {
11115            TestItem::new(cx)
11116                .with_label("test2.txt")
11117                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11118        });
11119
11120        // Add items to workspace
11121        workspace.update_in(cx, |workspace, window, cx| {
11122            workspace.add_item(
11123                pane.clone(),
11124                Box::new(item1.clone()),
11125                None,
11126                false,
11127                false,
11128                window,
11129                cx,
11130            );
11131            workspace.add_item(
11132                pane.clone(),
11133                Box::new(item2.clone()),
11134                None,
11135                false,
11136                false,
11137                window,
11138                cx,
11139            );
11140        });
11141
11142        // Activate item1 to ensure it gets navigation entries
11143        pane.update_in(cx, |pane, window, cx| {
11144            pane.activate_item(0, true, true, window, cx);
11145        });
11146
11147        // Switch to item2 and back to create navigation history
11148        pane.update_in(cx, |pane, window, cx| {
11149            pane.activate_item(1, true, true, window, cx);
11150        });
11151        cx.run_until_parked();
11152
11153        pane.update_in(cx, |pane, window, cx| {
11154            pane.activate_item(0, true, true, window, cx);
11155        });
11156        cx.run_until_parked();
11157
11158        // Simulate file deletion for item1
11159        item1.update(cx, |item, _| {
11160            item.set_has_deleted_file(true);
11161        });
11162
11163        // Emit UpdateTab event to trigger the close behavior
11164        item1.update(cx, |_, cx| {
11165            cx.emit(ItemEvent::UpdateTab);
11166        });
11167        cx.run_until_parked();
11168
11169        // Verify item1 was closed
11170        pane.read_with(cx, |pane, _| {
11171            assert_eq!(
11172                pane.items().count(),
11173                1,
11174                "Should have 1 item remaining after auto-close"
11175            );
11176        });
11177
11178        // Check navigation history after close
11179        let has_item = pane.read_with(cx, |pane, cx| {
11180            let mut has_item = false;
11181            pane.nav_history().for_each_entry(cx, |entry, _| {
11182                if entry.item.id() == item1_id {
11183                    has_item = true;
11184                }
11185            });
11186            has_item
11187        });
11188
11189        assert!(
11190            !has_item,
11191            "Navigation history should not contain closed item entries"
11192        );
11193    }
11194
11195    #[gpui::test]
11196    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11197        cx: &mut TestAppContext,
11198    ) {
11199        init_test(cx);
11200
11201        let fs = FakeFs::new(cx.background_executor.clone());
11202        let project = Project::test(fs, [], cx).await;
11203        let (workspace, cx) =
11204            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11205        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11206
11207        let dirty_regular_buffer = cx.new(|cx| {
11208            TestItem::new(cx)
11209                .with_dirty(true)
11210                .with_label("1.txt")
11211                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11212        });
11213        let dirty_regular_buffer_2 = cx.new(|cx| {
11214            TestItem::new(cx)
11215                .with_dirty(true)
11216                .with_label("2.txt")
11217                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11218        });
11219        let clear_regular_buffer = cx.new(|cx| {
11220            TestItem::new(cx)
11221                .with_label("3.txt")
11222                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11223        });
11224
11225        let dirty_multi_buffer = cx.new(|cx| {
11226            TestItem::new(cx)
11227                .with_dirty(true)
11228                .with_buffer_kind(ItemBufferKind::Multibuffer)
11229                .with_label("Fake Project Search")
11230                .with_project_items(&[
11231                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11232                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11233                    clear_regular_buffer.read(cx).project_items[0].clone(),
11234                ])
11235        });
11236        workspace.update_in(cx, |workspace, window, cx| {
11237            workspace.add_item(
11238                pane.clone(),
11239                Box::new(dirty_regular_buffer.clone()),
11240                None,
11241                false,
11242                false,
11243                window,
11244                cx,
11245            );
11246            workspace.add_item(
11247                pane.clone(),
11248                Box::new(dirty_regular_buffer_2.clone()),
11249                None,
11250                false,
11251                false,
11252                window,
11253                cx,
11254            );
11255            workspace.add_item(
11256                pane.clone(),
11257                Box::new(dirty_multi_buffer.clone()),
11258                None,
11259                false,
11260                false,
11261                window,
11262                cx,
11263            );
11264        });
11265
11266        pane.update_in(cx, |pane, window, cx| {
11267            pane.activate_item(2, true, true, window, cx);
11268            assert_eq!(
11269                pane.active_item().unwrap().item_id(),
11270                dirty_multi_buffer.item_id(),
11271                "Should select the multi buffer in the pane"
11272            );
11273        });
11274        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11275            pane.close_active_item(
11276                &CloseActiveItem {
11277                    save_intent: None,
11278                    close_pinned: false,
11279                },
11280                window,
11281                cx,
11282            )
11283        });
11284        cx.background_executor.run_until_parked();
11285        assert!(
11286            !cx.has_pending_prompt(),
11287            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11288        );
11289        close_multi_buffer_task
11290            .await
11291            .expect("Closing multi buffer failed");
11292        pane.update(cx, |pane, cx| {
11293            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11294            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11295            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11296            assert_eq!(
11297                pane.items()
11298                    .map(|item| item.item_id())
11299                    .sorted()
11300                    .collect::<Vec<_>>(),
11301                vec![
11302                    dirty_regular_buffer.item_id(),
11303                    dirty_regular_buffer_2.item_id(),
11304                ],
11305                "Should have no multi buffer left in the pane"
11306            );
11307            assert!(dirty_regular_buffer.read(cx).is_dirty);
11308            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11309        });
11310    }
11311
11312    #[gpui::test]
11313    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11314        init_test(cx);
11315        let fs = FakeFs::new(cx.executor());
11316        let project = Project::test(fs, [], cx).await;
11317        let (workspace, cx) =
11318            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11319
11320        // Add a new panel to the right dock, opening the dock and setting the
11321        // focus to the new panel.
11322        let panel = workspace.update_in(cx, |workspace, window, cx| {
11323            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11324            workspace.add_panel(panel.clone(), window, cx);
11325
11326            workspace
11327                .right_dock()
11328                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11329
11330            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11331
11332            panel
11333        });
11334
11335        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11336        // panel to the next valid position which, in this case, is the left
11337        // dock.
11338        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11339        workspace.update(cx, |workspace, cx| {
11340            assert!(workspace.left_dock().read(cx).is_open());
11341            assert_eq!(panel.read(cx).position, DockPosition::Left);
11342        });
11343
11344        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11345        // panel to the next valid position which, in this case, is the bottom
11346        // dock.
11347        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11348        workspace.update(cx, |workspace, cx| {
11349            assert!(workspace.bottom_dock().read(cx).is_open());
11350            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11351        });
11352
11353        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11354        // around moving the panel to its initial position, the right dock.
11355        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11356        workspace.update(cx, |workspace, cx| {
11357            assert!(workspace.right_dock().read(cx).is_open());
11358            assert_eq!(panel.read(cx).position, DockPosition::Right);
11359        });
11360
11361        // Remove focus from the panel, ensuring that, if the panel is not
11362        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11363        // the panel's position, so the panel is still in the right dock.
11364        workspace.update_in(cx, |workspace, window, cx| {
11365            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11366        });
11367
11368        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11369        workspace.update(cx, |workspace, cx| {
11370            assert!(workspace.right_dock().read(cx).is_open());
11371            assert_eq!(panel.read(cx).position, DockPosition::Right);
11372        });
11373    }
11374
11375    #[gpui::test]
11376    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11377        init_test(cx);
11378
11379        let fs = FakeFs::new(cx.executor());
11380        let project = Project::test(fs, [], cx).await;
11381        let (workspace, cx) =
11382            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11383
11384        let item_1 = cx.new(|cx| {
11385            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11386        });
11387        workspace.update_in(cx, |workspace, window, cx| {
11388            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11389            workspace.move_item_to_pane_in_direction(
11390                &MoveItemToPaneInDirection {
11391                    direction: SplitDirection::Right,
11392                    focus: true,
11393                    clone: false,
11394                },
11395                window,
11396                cx,
11397            );
11398            workspace.move_item_to_pane_at_index(
11399                &MoveItemToPane {
11400                    destination: 3,
11401                    focus: true,
11402                    clone: false,
11403                },
11404                window,
11405                cx,
11406            );
11407
11408            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11409            assert_eq!(
11410                pane_items_paths(&workspace.active_pane, cx),
11411                vec!["first.txt".to_string()],
11412                "Single item was not moved anywhere"
11413            );
11414        });
11415
11416        let item_2 = cx.new(|cx| {
11417            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11418        });
11419        workspace.update_in(cx, |workspace, window, cx| {
11420            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11421            assert_eq!(
11422                pane_items_paths(&workspace.panes[0], cx),
11423                vec!["first.txt".to_string(), "second.txt".to_string()],
11424            );
11425            workspace.move_item_to_pane_in_direction(
11426                &MoveItemToPaneInDirection {
11427                    direction: SplitDirection::Right,
11428                    focus: true,
11429                    clone: false,
11430                },
11431                window,
11432                cx,
11433            );
11434
11435            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11436            assert_eq!(
11437                pane_items_paths(&workspace.panes[0], cx),
11438                vec!["first.txt".to_string()],
11439                "After moving, one item should be left in the original pane"
11440            );
11441            assert_eq!(
11442                pane_items_paths(&workspace.panes[1], cx),
11443                vec!["second.txt".to_string()],
11444                "New item should have been moved to the new pane"
11445            );
11446        });
11447
11448        let item_3 = cx.new(|cx| {
11449            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11450        });
11451        workspace.update_in(cx, |workspace, window, cx| {
11452            let original_pane = workspace.panes[0].clone();
11453            workspace.set_active_pane(&original_pane, window, cx);
11454            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11455            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11456            assert_eq!(
11457                pane_items_paths(&workspace.active_pane, cx),
11458                vec!["first.txt".to_string(), "third.txt".to_string()],
11459                "New pane should be ready to move one item out"
11460            );
11461
11462            workspace.move_item_to_pane_at_index(
11463                &MoveItemToPane {
11464                    destination: 3,
11465                    focus: true,
11466                    clone: false,
11467                },
11468                window,
11469                cx,
11470            );
11471            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11472            assert_eq!(
11473                pane_items_paths(&workspace.active_pane, cx),
11474                vec!["first.txt".to_string()],
11475                "After moving, one item should be left in the original pane"
11476            );
11477            assert_eq!(
11478                pane_items_paths(&workspace.panes[1], cx),
11479                vec!["second.txt".to_string()],
11480                "Previously created pane should be unchanged"
11481            );
11482            assert_eq!(
11483                pane_items_paths(&workspace.panes[2], cx),
11484                vec!["third.txt".to_string()],
11485                "New item should have been moved to the new pane"
11486            );
11487        });
11488    }
11489
11490    #[gpui::test]
11491    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11492        init_test(cx);
11493
11494        let fs = FakeFs::new(cx.executor());
11495        let project = Project::test(fs, [], cx).await;
11496        let (workspace, cx) =
11497            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11498
11499        let item_1 = cx.new(|cx| {
11500            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11501        });
11502        workspace.update_in(cx, |workspace, window, cx| {
11503            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11504            workspace.move_item_to_pane_in_direction(
11505                &MoveItemToPaneInDirection {
11506                    direction: SplitDirection::Right,
11507                    focus: true,
11508                    clone: true,
11509                },
11510                window,
11511                cx,
11512            );
11513            workspace.move_item_to_pane_at_index(
11514                &MoveItemToPane {
11515                    destination: 3,
11516                    focus: true,
11517                    clone: true,
11518                },
11519                window,
11520                cx,
11521            );
11522        });
11523        cx.run_until_parked();
11524
11525        workspace.update(cx, |workspace, cx| {
11526            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11527            for pane in workspace.panes() {
11528                assert_eq!(
11529                    pane_items_paths(pane, cx),
11530                    vec!["first.txt".to_string()],
11531                    "Single item exists in all panes"
11532                );
11533            }
11534        });
11535
11536        // verify that the active pane has been updated after waiting for the
11537        // pane focus event to fire and resolve
11538        workspace.read_with(cx, |workspace, _app| {
11539            assert_eq!(
11540                workspace.active_pane(),
11541                &workspace.panes[2],
11542                "The third pane should be the active one: {:?}",
11543                workspace.panes
11544            );
11545        })
11546    }
11547
11548    mod register_project_item_tests {
11549
11550        use super::*;
11551
11552        // View
11553        struct TestPngItemView {
11554            focus_handle: FocusHandle,
11555        }
11556        // Model
11557        struct TestPngItem {}
11558
11559        impl project::ProjectItem for TestPngItem {
11560            fn try_open(
11561                _project: &Entity<Project>,
11562                path: &ProjectPath,
11563                cx: &mut App,
11564            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11565                if path.path.extension().unwrap() == "png" {
11566                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11567                } else {
11568                    None
11569                }
11570            }
11571
11572            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11573                None
11574            }
11575
11576            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11577                None
11578            }
11579
11580            fn is_dirty(&self) -> bool {
11581                false
11582            }
11583        }
11584
11585        impl Item for TestPngItemView {
11586            type Event = ();
11587            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11588                "".into()
11589            }
11590        }
11591        impl EventEmitter<()> for TestPngItemView {}
11592        impl Focusable for TestPngItemView {
11593            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11594                self.focus_handle.clone()
11595            }
11596        }
11597
11598        impl Render for TestPngItemView {
11599            fn render(
11600                &mut self,
11601                _window: &mut Window,
11602                _cx: &mut Context<Self>,
11603            ) -> impl IntoElement {
11604                Empty
11605            }
11606        }
11607
11608        impl ProjectItem for TestPngItemView {
11609            type Item = TestPngItem;
11610
11611            fn for_project_item(
11612                _project: Entity<Project>,
11613                _pane: Option<&Pane>,
11614                _item: Entity<Self::Item>,
11615                _: &mut Window,
11616                cx: &mut Context<Self>,
11617            ) -> Self
11618            where
11619                Self: Sized,
11620            {
11621                Self {
11622                    focus_handle: cx.focus_handle(),
11623                }
11624            }
11625        }
11626
11627        // View
11628        struct TestIpynbItemView {
11629            focus_handle: FocusHandle,
11630        }
11631        // Model
11632        struct TestIpynbItem {}
11633
11634        impl project::ProjectItem for TestIpynbItem {
11635            fn try_open(
11636                _project: &Entity<Project>,
11637                path: &ProjectPath,
11638                cx: &mut App,
11639            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11640                if path.path.extension().unwrap() == "ipynb" {
11641                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11642                } else {
11643                    None
11644                }
11645            }
11646
11647            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11648                None
11649            }
11650
11651            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11652                None
11653            }
11654
11655            fn is_dirty(&self) -> bool {
11656                false
11657            }
11658        }
11659
11660        impl Item for TestIpynbItemView {
11661            type Event = ();
11662            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11663                "".into()
11664            }
11665        }
11666        impl EventEmitter<()> for TestIpynbItemView {}
11667        impl Focusable for TestIpynbItemView {
11668            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11669                self.focus_handle.clone()
11670            }
11671        }
11672
11673        impl Render for TestIpynbItemView {
11674            fn render(
11675                &mut self,
11676                _window: &mut Window,
11677                _cx: &mut Context<Self>,
11678            ) -> impl IntoElement {
11679                Empty
11680            }
11681        }
11682
11683        impl ProjectItem for TestIpynbItemView {
11684            type Item = TestIpynbItem;
11685
11686            fn for_project_item(
11687                _project: Entity<Project>,
11688                _pane: Option<&Pane>,
11689                _item: Entity<Self::Item>,
11690                _: &mut Window,
11691                cx: &mut Context<Self>,
11692            ) -> Self
11693            where
11694                Self: Sized,
11695            {
11696                Self {
11697                    focus_handle: cx.focus_handle(),
11698                }
11699            }
11700        }
11701
11702        struct TestAlternatePngItemView {
11703            focus_handle: FocusHandle,
11704        }
11705
11706        impl Item for TestAlternatePngItemView {
11707            type Event = ();
11708            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11709                "".into()
11710            }
11711        }
11712
11713        impl EventEmitter<()> for TestAlternatePngItemView {}
11714        impl Focusable for TestAlternatePngItemView {
11715            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11716                self.focus_handle.clone()
11717            }
11718        }
11719
11720        impl Render for TestAlternatePngItemView {
11721            fn render(
11722                &mut self,
11723                _window: &mut Window,
11724                _cx: &mut Context<Self>,
11725            ) -> impl IntoElement {
11726                Empty
11727            }
11728        }
11729
11730        impl ProjectItem for TestAlternatePngItemView {
11731            type Item = TestPngItem;
11732
11733            fn for_project_item(
11734                _project: Entity<Project>,
11735                _pane: Option<&Pane>,
11736                _item: Entity<Self::Item>,
11737                _: &mut Window,
11738                cx: &mut Context<Self>,
11739            ) -> Self
11740            where
11741                Self: Sized,
11742            {
11743                Self {
11744                    focus_handle: cx.focus_handle(),
11745                }
11746            }
11747        }
11748
11749        #[gpui::test]
11750        async fn test_register_project_item(cx: &mut TestAppContext) {
11751            init_test(cx);
11752
11753            cx.update(|cx| {
11754                register_project_item::<TestPngItemView>(cx);
11755                register_project_item::<TestIpynbItemView>(cx);
11756            });
11757
11758            let fs = FakeFs::new(cx.executor());
11759            fs.insert_tree(
11760                "/root1",
11761                json!({
11762                    "one.png": "BINARYDATAHERE",
11763                    "two.ipynb": "{ totally a notebook }",
11764                    "three.txt": "editing text, sure why not?"
11765                }),
11766            )
11767            .await;
11768
11769            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11770            let (workspace, cx) =
11771                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11772
11773            let worktree_id = project.update(cx, |project, cx| {
11774                project.worktrees(cx).next().unwrap().read(cx).id()
11775            });
11776
11777            let handle = workspace
11778                .update_in(cx, |workspace, window, cx| {
11779                    let project_path = (worktree_id, rel_path("one.png"));
11780                    workspace.open_path(project_path, None, true, window, cx)
11781                })
11782                .await
11783                .unwrap();
11784
11785            // Now we can check if the handle we got back errored or not
11786            assert_eq!(
11787                handle.to_any_view().entity_type(),
11788                TypeId::of::<TestPngItemView>()
11789            );
11790
11791            let handle = workspace
11792                .update_in(cx, |workspace, window, cx| {
11793                    let project_path = (worktree_id, rel_path("two.ipynb"));
11794                    workspace.open_path(project_path, None, true, window, cx)
11795                })
11796                .await
11797                .unwrap();
11798
11799            assert_eq!(
11800                handle.to_any_view().entity_type(),
11801                TypeId::of::<TestIpynbItemView>()
11802            );
11803
11804            let handle = workspace
11805                .update_in(cx, |workspace, window, cx| {
11806                    let project_path = (worktree_id, rel_path("three.txt"));
11807                    workspace.open_path(project_path, None, true, window, cx)
11808                })
11809                .await;
11810            assert!(handle.is_err());
11811        }
11812
11813        #[gpui::test]
11814        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11815            init_test(cx);
11816
11817            cx.update(|cx| {
11818                register_project_item::<TestPngItemView>(cx);
11819                register_project_item::<TestAlternatePngItemView>(cx);
11820            });
11821
11822            let fs = FakeFs::new(cx.executor());
11823            fs.insert_tree(
11824                "/root1",
11825                json!({
11826                    "one.png": "BINARYDATAHERE",
11827                    "two.ipynb": "{ totally a notebook }",
11828                    "three.txt": "editing text, sure why not?"
11829                }),
11830            )
11831            .await;
11832            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11833            let (workspace, cx) =
11834                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11835            let worktree_id = project.update(cx, |project, cx| {
11836                project.worktrees(cx).next().unwrap().read(cx).id()
11837            });
11838
11839            let handle = workspace
11840                .update_in(cx, |workspace, window, cx| {
11841                    let project_path = (worktree_id, rel_path("one.png"));
11842                    workspace.open_path(project_path, None, true, window, cx)
11843                })
11844                .await
11845                .unwrap();
11846
11847            // This _must_ be the second item registered
11848            assert_eq!(
11849                handle.to_any_view().entity_type(),
11850                TypeId::of::<TestAlternatePngItemView>()
11851            );
11852
11853            let handle = workspace
11854                .update_in(cx, |workspace, window, cx| {
11855                    let project_path = (worktree_id, rel_path("three.txt"));
11856                    workspace.open_path(project_path, None, true, window, cx)
11857                })
11858                .await;
11859            assert!(handle.is_err());
11860        }
11861    }
11862
11863    #[gpui::test]
11864    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11865        init_test(cx);
11866
11867        let fs = FakeFs::new(cx.executor());
11868        let project = Project::test(fs, [], cx).await;
11869        let (workspace, _cx) =
11870            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11871
11872        // Test with status bar shown (default)
11873        workspace.read_with(cx, |workspace, cx| {
11874            let visible = workspace.status_bar_visible(cx);
11875            assert!(visible, "Status bar should be visible by default");
11876        });
11877
11878        // Test with status bar hidden
11879        cx.update_global(|store: &mut SettingsStore, cx| {
11880            store.update_user_settings(cx, |settings| {
11881                settings.status_bar.get_or_insert_default().show = Some(false);
11882            });
11883        });
11884
11885        workspace.read_with(cx, |workspace, cx| {
11886            let visible = workspace.status_bar_visible(cx);
11887            assert!(!visible, "Status bar should be hidden when show is false");
11888        });
11889
11890        // Test with status bar shown explicitly
11891        cx.update_global(|store: &mut SettingsStore, cx| {
11892            store.update_user_settings(cx, |settings| {
11893                settings.status_bar.get_or_insert_default().show = Some(true);
11894            });
11895        });
11896
11897        workspace.read_with(cx, |workspace, cx| {
11898            let visible = workspace.status_bar_visible(cx);
11899            assert!(visible, "Status bar should be visible when show is true");
11900        });
11901    }
11902
11903    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11904        pane.read(cx)
11905            .items()
11906            .flat_map(|item| {
11907                item.project_paths(cx)
11908                    .into_iter()
11909                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11910            })
11911            .collect()
11912    }
11913
11914    pub fn init_test(cx: &mut TestAppContext) {
11915        cx.update(|cx| {
11916            let settings_store = SettingsStore::test(cx);
11917            cx.set_global(settings_store);
11918            theme::init(theme::LoadThemes::JustBase, cx);
11919        });
11920    }
11921
11922    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11923        let item = TestProjectItem::new(id, path, cx);
11924        item.update(cx, |item, _| {
11925            item.is_dirty = true;
11926        });
11927        item
11928    }
11929}