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    next_modal_placement: Option<ModalPlacement>,
 1209}
 1210
 1211impl EventEmitter<Event> for Workspace {}
 1212
 1213#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1214pub struct ViewId {
 1215    pub creator: CollaboratorId,
 1216    pub id: u64,
 1217}
 1218
 1219pub struct FollowerState {
 1220    center_pane: Entity<Pane>,
 1221    dock_pane: Option<Entity<Pane>>,
 1222    active_view_id: Option<ViewId>,
 1223    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1224}
 1225
 1226struct FollowerView {
 1227    view: Box<dyn FollowableItemHandle>,
 1228    location: Option<proto::PanelId>,
 1229}
 1230
 1231impl Workspace {
 1232    pub fn new(
 1233        workspace_id: Option<WorkspaceId>,
 1234        project: Entity<Project>,
 1235        app_state: Arc<AppState>,
 1236        window: &mut Window,
 1237        cx: &mut Context<Self>,
 1238    ) -> Self {
 1239        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1240            cx.subscribe(&trusted_worktrees, |workspace, worktrees_store, e, cx| {
 1241                if let TrustedWorktreesEvent::Trusted(..) = e {
 1242                    // Do not persist auto trusted worktrees
 1243                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1244                        let new_trusted_worktrees =
 1245                            worktrees_store.update(cx, |worktrees_store, cx| {
 1246                                worktrees_store.trusted_paths_for_serialization(cx)
 1247                            });
 1248                        let timeout = cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1249                        workspace._schedule_serialize_worktree_trust =
 1250                            cx.background_spawn(async move {
 1251                                timeout.await;
 1252                                persistence::DB
 1253                                    .save_trusted_worktrees(new_trusted_worktrees)
 1254                                    .await
 1255                                    .log_err();
 1256                            });
 1257                    }
 1258                }
 1259            })
 1260            .detach();
 1261
 1262            cx.observe_global::<SettingsStore>(|_, cx| {
 1263                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1264                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1265                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1266                            trusted_worktrees.auto_trust_all(cx);
 1267                        })
 1268                    }
 1269                }
 1270            })
 1271            .detach();
 1272        }
 1273
 1274        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1275            match event {
 1276                project::Event::RemoteIdChanged(_) => {
 1277                    this.update_window_title(window, cx);
 1278                }
 1279
 1280                project::Event::CollaboratorLeft(peer_id) => {
 1281                    this.collaborator_left(*peer_id, window, cx);
 1282                }
 1283
 1284                project::Event::WorktreeUpdatedEntries(worktree_id, _) => {
 1285                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1286                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1287                            trusted_worktrees.can_trust(*worktree_id, cx);
 1288                        });
 1289                    }
 1290                }
 1291
 1292                project::Event::WorktreeRemoved(_) => {
 1293                    this.update_worktree_data(window, cx);
 1294                }
 1295
 1296                project::Event::WorktreeAdded(worktree_id) => {
 1297                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1298                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1299                            trusted_worktrees.can_trust(*worktree_id, cx);
 1300                        });
 1301                    }
 1302                    this.update_worktree_data(window, cx);
 1303                }
 1304
 1305                project::Event::DisconnectedFromHost => {
 1306                    this.update_window_edited(window, cx);
 1307                    let leaders_to_unfollow =
 1308                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1309                    for leader_id in leaders_to_unfollow {
 1310                        this.unfollow(leader_id, window, cx);
 1311                    }
 1312                }
 1313
 1314                project::Event::DisconnectedFromSshRemote => {
 1315                    this.update_window_edited(window, cx);
 1316                }
 1317
 1318                project::Event::Closed => {
 1319                    window.remove_window();
 1320                }
 1321
 1322                project::Event::DeletedEntry(_, entry_id) => {
 1323                    for pane in this.panes.iter() {
 1324                        pane.update(cx, |pane, cx| {
 1325                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1326                        });
 1327                    }
 1328                }
 1329
 1330                project::Event::Toast {
 1331                    notification_id,
 1332                    message,
 1333                } => this.show_notification(
 1334                    NotificationId::named(notification_id.clone()),
 1335                    cx,
 1336                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1337                ),
 1338
 1339                project::Event::HideToast { notification_id } => {
 1340                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1341                }
 1342
 1343                project::Event::LanguageServerPrompt(request) => {
 1344                    struct LanguageServerPrompt;
 1345
 1346                    let mut hasher = DefaultHasher::new();
 1347                    request.lsp_name.as_str().hash(&mut hasher);
 1348                    let id = hasher.finish();
 1349
 1350                    this.show_notification(
 1351                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1352                        cx,
 1353                        |cx| {
 1354                            cx.new(|cx| {
 1355                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1356                            })
 1357                        },
 1358                    );
 1359                }
 1360
 1361                project::Event::AgentLocationChanged => {
 1362                    this.handle_agent_location_changed(window, cx)
 1363                }
 1364
 1365                _ => {}
 1366            }
 1367            cx.notify()
 1368        })
 1369        .detach();
 1370
 1371        cx.subscribe_in(
 1372            &project.read(cx).breakpoint_store(),
 1373            window,
 1374            |workspace, _, event, window, cx| match event {
 1375                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1376                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1377                    workspace.serialize_workspace(window, cx);
 1378                }
 1379                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1380            },
 1381        )
 1382        .detach();
 1383        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1384            cx.subscribe_in(
 1385                &toolchain_store,
 1386                window,
 1387                |workspace, _, event, window, cx| match event {
 1388                    ToolchainStoreEvent::CustomToolchainsModified => {
 1389                        workspace.serialize_workspace(window, cx);
 1390                    }
 1391                    _ => {}
 1392                },
 1393            )
 1394            .detach();
 1395        }
 1396
 1397        cx.on_focus_lost(window, |this, window, cx| {
 1398            let focus_handle = this.focus_handle(cx);
 1399            window.focus(&focus_handle, cx);
 1400        })
 1401        .detach();
 1402
 1403        let weak_handle = cx.entity().downgrade();
 1404        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1405
 1406        let center_pane = cx.new(|cx| {
 1407            let mut center_pane = Pane::new(
 1408                weak_handle.clone(),
 1409                project.clone(),
 1410                pane_history_timestamp.clone(),
 1411                None,
 1412                NewFile.boxed_clone(),
 1413                true,
 1414                window,
 1415                cx,
 1416            );
 1417            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1418            center_pane
 1419        });
 1420        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1421            .detach();
 1422
 1423        window.focus(&center_pane.focus_handle(cx), cx);
 1424
 1425        cx.emit(Event::PaneAdded(center_pane.clone()));
 1426
 1427        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1428        app_state.workspace_store.update(cx, |store, _| {
 1429            store.workspaces.insert(window_handle);
 1430        });
 1431
 1432        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1433        let mut connection_status = app_state.client.status();
 1434        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1435            current_user.next().await;
 1436            connection_status.next().await;
 1437            let mut stream =
 1438                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1439
 1440            while stream.recv().await.is_some() {
 1441                this.update(cx, |_, cx| cx.notify())?;
 1442            }
 1443            anyhow::Ok(())
 1444        });
 1445
 1446        // All leader updates are enqueued and then processed in a single task, so
 1447        // that each asynchronous operation can be run in order.
 1448        let (leader_updates_tx, mut leader_updates_rx) =
 1449            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1450        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1451            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1452                Self::process_leader_update(&this, leader_id, update, cx)
 1453                    .await
 1454                    .log_err();
 1455            }
 1456
 1457            Ok(())
 1458        });
 1459
 1460        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1461        let modal_layer = cx.new(|_| ModalLayer::new());
 1462        let toast_layer = cx.new(|_| ToastLayer::new());
 1463        cx.subscribe(
 1464            &modal_layer,
 1465            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1466                cx.emit(Event::ModalOpened);
 1467            },
 1468        )
 1469        .detach();
 1470
 1471        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1472        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1473        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1474        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1475        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1476        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1477        let status_bar = cx.new(|cx| {
 1478            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1479            status_bar.add_left_item(left_dock_buttons, window, cx);
 1480            status_bar.add_right_item(right_dock_buttons, window, cx);
 1481            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1482            status_bar
 1483        });
 1484
 1485        let session_id = app_state.session.read(cx).id().to_owned();
 1486
 1487        let mut active_call = None;
 1488        if let Some(call) = ActiveCall::try_global(cx) {
 1489            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1490            active_call = Some((call, subscriptions));
 1491        }
 1492
 1493        let (serializable_items_tx, serializable_items_rx) =
 1494            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1495        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1496            Self::serialize_items(&this, serializable_items_rx, cx).await
 1497        });
 1498
 1499        let subscriptions = vec![
 1500            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1501            cx.observe_window_bounds(window, move |this, window, cx| {
 1502                if this.bounds_save_task_queued.is_some() {
 1503                    return;
 1504                }
 1505                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1506                    cx.background_executor()
 1507                        .timer(Duration::from_millis(100))
 1508                        .await;
 1509                    this.update_in(cx, |this, window, cx| {
 1510                        if let Some(display) = window.display(cx)
 1511                            && let Ok(display_uuid) = display.uuid()
 1512                        {
 1513                            let window_bounds = window.inner_window_bounds();
 1514                            let has_paths = !this.root_paths(cx).is_empty();
 1515                            if !has_paths {
 1516                                cx.background_executor()
 1517                                    .spawn(persistence::write_default_window_bounds(
 1518                                        window_bounds,
 1519                                        display_uuid,
 1520                                    ))
 1521                                    .detach_and_log_err(cx);
 1522                            }
 1523                            if let Some(database_id) = workspace_id {
 1524                                cx.background_executor()
 1525                                    .spawn(DB.set_window_open_status(
 1526                                        database_id,
 1527                                        SerializedWindowBounds(window_bounds),
 1528                                        display_uuid,
 1529                                    ))
 1530                                    .detach_and_log_err(cx);
 1531                            } else {
 1532                                cx.background_executor()
 1533                                    .spawn(persistence::write_default_window_bounds(
 1534                                        window_bounds,
 1535                                        display_uuid,
 1536                                    ))
 1537                                    .detach_and_log_err(cx);
 1538                            }
 1539                        }
 1540                        this.bounds_save_task_queued.take();
 1541                    })
 1542                    .ok();
 1543                }));
 1544                cx.notify();
 1545            }),
 1546            cx.observe_window_appearance(window, |_, window, cx| {
 1547                let window_appearance = window.appearance();
 1548
 1549                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1550
 1551                GlobalTheme::reload_theme(cx);
 1552                GlobalTheme::reload_icon_theme(cx);
 1553            }),
 1554            cx.on_release(move |this, cx| {
 1555                this.app_state.workspace_store.update(cx, move |store, _| {
 1556                    store.workspaces.remove(&window_handle);
 1557                })
 1558            }),
 1559        ];
 1560
 1561        cx.defer_in(window, move |this, window, cx| {
 1562            this.update_window_title(window, cx);
 1563            this.show_initial_notifications(cx);
 1564        });
 1565
 1566        let mut center = PaneGroup::new(center_pane.clone());
 1567        center.set_is_center(true);
 1568        center.mark_positions(cx);
 1569
 1570        Workspace {
 1571            weak_self: weak_handle.clone(),
 1572            zoomed: None,
 1573            zoomed_position: None,
 1574            previous_dock_drag_coordinates: None,
 1575            center,
 1576            panes: vec![center_pane.clone()],
 1577            panes_by_item: Default::default(),
 1578            active_pane: center_pane.clone(),
 1579            last_active_center_pane: Some(center_pane.downgrade()),
 1580            last_active_view_id: None,
 1581            status_bar,
 1582            modal_layer,
 1583            toast_layer,
 1584            titlebar_item: None,
 1585            notifications: Notifications::default(),
 1586            suppressed_notifications: HashSet::default(),
 1587            left_dock,
 1588            bottom_dock,
 1589            right_dock,
 1590            project: project.clone(),
 1591            follower_states: Default::default(),
 1592            last_leaders_by_pane: Default::default(),
 1593            dispatching_keystrokes: Default::default(),
 1594            window_edited: false,
 1595            last_window_title: None,
 1596            dirty_items: Default::default(),
 1597            active_call,
 1598            database_id: workspace_id,
 1599            app_state,
 1600            _observe_current_user,
 1601            _apply_leader_updates,
 1602            _schedule_serialize_workspace: None,
 1603            _schedule_serialize_ssh_paths: None,
 1604            _schedule_serialize_worktree_trust: Task::ready(()),
 1605            leader_updates_tx,
 1606            _subscriptions: subscriptions,
 1607            pane_history_timestamp,
 1608            workspace_actions: Default::default(),
 1609            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1610            bounds: Default::default(),
 1611            centered_layout: false,
 1612            bounds_save_task_queued: None,
 1613            on_prompt_for_new_path: None,
 1614            on_prompt_for_open_path: None,
 1615            terminal_provider: None,
 1616            debugger_provider: None,
 1617            serializable_items_tx,
 1618            _items_serializer,
 1619            session_id: Some(session_id),
 1620
 1621            scheduled_tasks: Vec::new(),
 1622            last_open_dock_positions: Vec::new(),
 1623            removing: false,
 1624            utility_panes: UtilityPaneState::default(),
 1625            next_modal_placement: None,
 1626        }
 1627    }
 1628
 1629    pub fn new_local(
 1630        abs_paths: Vec<PathBuf>,
 1631        app_state: Arc<AppState>,
 1632        requesting_window: Option<WindowHandle<Workspace>>,
 1633        env: Option<HashMap<String, String>>,
 1634        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1635        cx: &mut App,
 1636    ) -> Task<
 1637        anyhow::Result<(
 1638            WindowHandle<Workspace>,
 1639            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1640        )>,
 1641    > {
 1642        let project_handle = Project::local(
 1643            app_state.client.clone(),
 1644            app_state.node_runtime.clone(),
 1645            app_state.user_store.clone(),
 1646            app_state.languages.clone(),
 1647            app_state.fs.clone(),
 1648            env,
 1649            true,
 1650            cx,
 1651        );
 1652
 1653        cx.spawn(async move |cx| {
 1654            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1655            for path in abs_paths.into_iter() {
 1656                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1657                    paths_to_open.push(canonical)
 1658                } else {
 1659                    paths_to_open.push(path)
 1660                }
 1661            }
 1662
 1663            let serialized_workspace =
 1664                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1665
 1666            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1667                paths_to_open = paths.ordered_paths().cloned().collect();
 1668                if !paths.is_lexicographically_ordered() {
 1669                    project_handle
 1670                        .update(cx, |project, cx| {
 1671                            project.set_worktrees_reordered(true, cx);
 1672                        })
 1673                        .log_err();
 1674                }
 1675            }
 1676
 1677            // Get project paths for all of the abs_paths
 1678            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1679                Vec::with_capacity(paths_to_open.len());
 1680
 1681            for path in paths_to_open.into_iter() {
 1682                if let Some((_, project_entry)) = cx
 1683                    .update(|cx| {
 1684                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1685                    })?
 1686                    .await
 1687                    .log_err()
 1688                {
 1689                    project_paths.push((path, Some(project_entry)));
 1690                } else {
 1691                    project_paths.push((path, None));
 1692                }
 1693            }
 1694
 1695            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1696                serialized_workspace.id
 1697            } else {
 1698                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1699            };
 1700
 1701            let toolchains = DB.toolchains(workspace_id).await?;
 1702
 1703            for (toolchain, worktree_path, path) in toolchains {
 1704                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1705                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1706                    this.find_worktree(&worktree_path, cx)
 1707                        .and_then(|(worktree, rel_path)| {
 1708                            if rel_path.is_empty() {
 1709                                Some(worktree.read(cx).id())
 1710                            } else {
 1711                                None
 1712                            }
 1713                        })
 1714                })?
 1715                else {
 1716                    // We did not find a worktree with a given path, but that's whatever.
 1717                    continue;
 1718                };
 1719                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1720                    continue;
 1721                }
 1722
 1723                project_handle
 1724                    .update(cx, |this, cx| {
 1725                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1726                    })?
 1727                    .await;
 1728            }
 1729            if let Some(workspace) = serialized_workspace.as_ref() {
 1730                project_handle.update(cx, |this, cx| {
 1731                    for (scope, toolchains) in &workspace.user_toolchains {
 1732                        for toolchain in toolchains {
 1733                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1734                        }
 1735                    }
 1736                })?;
 1737            }
 1738
 1739            let window = if let Some(window) = requesting_window {
 1740                let centered_layout = serialized_workspace
 1741                    .as_ref()
 1742                    .map(|w| w.centered_layout)
 1743                    .unwrap_or(false);
 1744
 1745                cx.update_window(window.into(), |_, window, cx| {
 1746                    window.replace_root(cx, |window, cx| {
 1747                        let mut workspace = Workspace::new(
 1748                            Some(workspace_id),
 1749                            project_handle.clone(),
 1750                            app_state.clone(),
 1751                            window,
 1752                            cx,
 1753                        );
 1754
 1755                        workspace.centered_layout = centered_layout;
 1756
 1757                        // Call init callback to add items before window renders
 1758                        if let Some(init) = init {
 1759                            init(&mut workspace, window, cx);
 1760                        }
 1761
 1762                        workspace
 1763                    });
 1764                })?;
 1765                window
 1766            } else {
 1767                let window_bounds_override = window_bounds_env_override();
 1768
 1769                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1770                    (Some(WindowBounds::Windowed(bounds)), None)
 1771                } else if let Some(workspace) = serialized_workspace.as_ref()
 1772                    && let Some(display) = workspace.display
 1773                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1774                {
 1775                    // Reopening an existing workspace - restore its saved bounds
 1776                    (Some(bounds.0), Some(display))
 1777                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1778                    // New or empty workspace - use the last known window bounds
 1779                    (Some(bounds), Some(display))
 1780                } else {
 1781                    // New window - let GPUI's default_bounds() handle cascading
 1782                    (None, None)
 1783                };
 1784
 1785                // Use the serialized workspace to construct the new window
 1786                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1787                options.window_bounds = window_bounds;
 1788                let centered_layout = serialized_workspace
 1789                    .as_ref()
 1790                    .map(|w| w.centered_layout)
 1791                    .unwrap_or(false);
 1792                cx.open_window(options, {
 1793                    let app_state = app_state.clone();
 1794                    let project_handle = project_handle.clone();
 1795                    move |window, cx| {
 1796                        cx.new(|cx| {
 1797                            let mut workspace = Workspace::new(
 1798                                Some(workspace_id),
 1799                                project_handle,
 1800                                app_state,
 1801                                window,
 1802                                cx,
 1803                            );
 1804                            workspace.centered_layout = centered_layout;
 1805
 1806                            // Call init callback to add items before window renders
 1807                            if let Some(init) = init {
 1808                                init(&mut workspace, window, cx);
 1809                            }
 1810
 1811                            workspace
 1812                        })
 1813                    }
 1814                })?
 1815            };
 1816
 1817            notify_if_database_failed(window, cx);
 1818            let opened_items = window
 1819                .update(cx, |_workspace, window, cx| {
 1820                    open_items(serialized_workspace, project_paths, window, cx)
 1821                })?
 1822                .await
 1823                .unwrap_or_default();
 1824
 1825            window
 1826                .update(cx, |workspace, window, cx| {
 1827                    window.activate_window();
 1828                    workspace.update_history(cx);
 1829                })
 1830                .log_err();
 1831            Ok((window, opened_items))
 1832        })
 1833    }
 1834
 1835    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1836        self.weak_self.clone()
 1837    }
 1838
 1839    pub fn left_dock(&self) -> &Entity<Dock> {
 1840        &self.left_dock
 1841    }
 1842
 1843    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1844        &self.bottom_dock
 1845    }
 1846
 1847    pub fn set_bottom_dock_layout(
 1848        &mut self,
 1849        layout: BottomDockLayout,
 1850        window: &mut Window,
 1851        cx: &mut Context<Self>,
 1852    ) {
 1853        let fs = self.project().read(cx).fs();
 1854        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1855            content.workspace.bottom_dock_layout = Some(layout);
 1856        });
 1857
 1858        cx.notify();
 1859        self.serialize_workspace(window, cx);
 1860    }
 1861
 1862    pub fn right_dock(&self) -> &Entity<Dock> {
 1863        &self.right_dock
 1864    }
 1865
 1866    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1867        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1868    }
 1869
 1870    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1871        match position {
 1872            DockPosition::Left => &self.left_dock,
 1873            DockPosition::Bottom => &self.bottom_dock,
 1874            DockPosition::Right => &self.right_dock,
 1875        }
 1876    }
 1877
 1878    pub fn is_edited(&self) -> bool {
 1879        self.window_edited
 1880    }
 1881
 1882    pub fn add_panel<T: Panel>(
 1883        &mut self,
 1884        panel: Entity<T>,
 1885        window: &mut Window,
 1886        cx: &mut Context<Self>,
 1887    ) {
 1888        let focus_handle = panel.panel_focus_handle(cx);
 1889        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1890            .detach();
 1891
 1892        let dock_position = panel.position(window, cx);
 1893        let dock = self.dock_at_position(dock_position);
 1894
 1895        dock.update(cx, |dock, cx| {
 1896            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1897        });
 1898    }
 1899
 1900    pub fn remove_panel<T: Panel>(
 1901        &mut self,
 1902        panel: &Entity<T>,
 1903        window: &mut Window,
 1904        cx: &mut Context<Self>,
 1905    ) {
 1906        let mut found_in_dock = None;
 1907        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1908            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1909
 1910            if found {
 1911                found_in_dock = Some(dock.clone());
 1912            }
 1913        }
 1914        if let Some(found_in_dock) = found_in_dock {
 1915            let position = found_in_dock.read(cx).position();
 1916            let slot = utility_slot_for_dock_position(position);
 1917            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1918        }
 1919    }
 1920
 1921    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1922        &self.status_bar
 1923    }
 1924
 1925    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1926        StatusBarSettings::get_global(cx).show
 1927    }
 1928
 1929    pub fn app_state(&self) -> &Arc<AppState> {
 1930        &self.app_state
 1931    }
 1932
 1933    pub fn user_store(&self) -> &Entity<UserStore> {
 1934        &self.app_state.user_store
 1935    }
 1936
 1937    pub fn project(&self) -> &Entity<Project> {
 1938        &self.project
 1939    }
 1940
 1941    pub fn path_style(&self, cx: &App) -> PathStyle {
 1942        self.project.read(cx).path_style(cx)
 1943    }
 1944
 1945    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1946        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1947
 1948        for pane_handle in &self.panes {
 1949            let pane = pane_handle.read(cx);
 1950
 1951            for entry in pane.activation_history() {
 1952                history.insert(
 1953                    entry.entity_id,
 1954                    history
 1955                        .get(&entry.entity_id)
 1956                        .cloned()
 1957                        .unwrap_or(0)
 1958                        .max(entry.timestamp),
 1959                );
 1960            }
 1961        }
 1962
 1963        history
 1964    }
 1965
 1966    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1967        let mut recent_item: Option<Entity<T>> = None;
 1968        let mut recent_timestamp = 0;
 1969        for pane_handle in &self.panes {
 1970            let pane = pane_handle.read(cx);
 1971            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1972                pane.items().map(|item| (item.item_id(), item)).collect();
 1973            for entry in pane.activation_history() {
 1974                if entry.timestamp > recent_timestamp
 1975                    && let Some(&item) = item_map.get(&entry.entity_id)
 1976                    && let Some(typed_item) = item.act_as::<T>(cx)
 1977                {
 1978                    recent_timestamp = entry.timestamp;
 1979                    recent_item = Some(typed_item);
 1980                }
 1981            }
 1982        }
 1983        recent_item
 1984    }
 1985
 1986    pub fn recent_navigation_history_iter(
 1987        &self,
 1988        cx: &App,
 1989    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1990        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1991        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1992
 1993        for pane in &self.panes {
 1994            let pane = pane.read(cx);
 1995
 1996            pane.nav_history()
 1997                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1998                    if let Some(fs_path) = &fs_path {
 1999                        abs_paths_opened
 2000                            .entry(fs_path.clone())
 2001                            .or_default()
 2002                            .insert(project_path.clone());
 2003                    }
 2004                    let timestamp = entry.timestamp;
 2005                    match history.entry(project_path) {
 2006                        hash_map::Entry::Occupied(mut entry) => {
 2007                            let (_, old_timestamp) = entry.get();
 2008                            if &timestamp > old_timestamp {
 2009                                entry.insert((fs_path, timestamp));
 2010                            }
 2011                        }
 2012                        hash_map::Entry::Vacant(entry) => {
 2013                            entry.insert((fs_path, timestamp));
 2014                        }
 2015                    }
 2016                });
 2017
 2018            if let Some(item) = pane.active_item()
 2019                && let Some(project_path) = item.project_path(cx)
 2020            {
 2021                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2022
 2023                if let Some(fs_path) = &fs_path {
 2024                    abs_paths_opened
 2025                        .entry(fs_path.clone())
 2026                        .or_default()
 2027                        .insert(project_path.clone());
 2028                }
 2029
 2030                history.insert(project_path, (fs_path, std::usize::MAX));
 2031            }
 2032        }
 2033
 2034        history
 2035            .into_iter()
 2036            .sorted_by_key(|(_, (_, order))| *order)
 2037            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2038            .rev()
 2039            .filter(move |(history_path, abs_path)| {
 2040                let latest_project_path_opened = abs_path
 2041                    .as_ref()
 2042                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2043                    .and_then(|project_paths| {
 2044                        project_paths
 2045                            .iter()
 2046                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2047                    });
 2048
 2049                latest_project_path_opened.is_none_or(|path| path == history_path)
 2050            })
 2051    }
 2052
 2053    pub fn recent_navigation_history(
 2054        &self,
 2055        limit: Option<usize>,
 2056        cx: &App,
 2057    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2058        self.recent_navigation_history_iter(cx)
 2059            .take(limit.unwrap_or(usize::MAX))
 2060            .collect()
 2061    }
 2062
 2063    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2064        for pane in &self.panes {
 2065            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2066        }
 2067    }
 2068
 2069    fn navigate_history(
 2070        &mut self,
 2071        pane: WeakEntity<Pane>,
 2072        mode: NavigationMode,
 2073        window: &mut Window,
 2074        cx: &mut Context<Workspace>,
 2075    ) -> Task<Result<()>> {
 2076        let to_load = if let Some(pane) = pane.upgrade() {
 2077            pane.update(cx, |pane, cx| {
 2078                window.focus(&pane.focus_handle(cx), cx);
 2079                loop {
 2080                    // Retrieve the weak item handle from the history.
 2081                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2082
 2083                    // If the item is still present in this pane, then activate it.
 2084                    if let Some(index) = entry
 2085                        .item
 2086                        .upgrade()
 2087                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2088                    {
 2089                        let prev_active_item_index = pane.active_item_index();
 2090                        pane.nav_history_mut().set_mode(mode);
 2091                        pane.activate_item(index, true, true, window, cx);
 2092                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2093
 2094                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2095                        if let Some(data) = entry.data {
 2096                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2097                        }
 2098
 2099                        if navigated {
 2100                            break None;
 2101                        }
 2102                    } else {
 2103                        // If the item is no longer present in this pane, then retrieve its
 2104                        // path info in order to reopen it.
 2105                        break pane
 2106                            .nav_history()
 2107                            .path_for_item(entry.item.id())
 2108                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2109                    }
 2110                }
 2111            })
 2112        } else {
 2113            None
 2114        };
 2115
 2116        if let Some((project_path, abs_path, entry)) = to_load {
 2117            // If the item was no longer present, then load it again from its previous path, first try the local path
 2118            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2119
 2120            cx.spawn_in(window, async move  |workspace, cx| {
 2121                let open_by_project_path = open_by_project_path.await;
 2122                let mut navigated = false;
 2123                match open_by_project_path
 2124                    .with_context(|| format!("Navigating to {project_path:?}"))
 2125                {
 2126                    Ok((project_entry_id, build_item)) => {
 2127                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2128                            pane.nav_history_mut().set_mode(mode);
 2129                            pane.active_item().map(|p| p.item_id())
 2130                        })?;
 2131
 2132                        pane.update_in(cx, |pane, window, cx| {
 2133                            let item = pane.open_item(
 2134                                project_entry_id,
 2135                                project_path,
 2136                                true,
 2137                                entry.is_preview,
 2138                                true,
 2139                                None,
 2140                                window, cx,
 2141                                build_item,
 2142                            );
 2143                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2144                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2145                            if let Some(data) = entry.data {
 2146                                navigated |= item.navigate(data, window, cx);
 2147                            }
 2148                        })?;
 2149                    }
 2150                    Err(open_by_project_path_e) => {
 2151                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2152                        // and its worktree is now dropped
 2153                        if let Some(abs_path) = abs_path {
 2154                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2155                                pane.nav_history_mut().set_mode(mode);
 2156                                pane.active_item().map(|p| p.item_id())
 2157                            })?;
 2158                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2159                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2160                            })?;
 2161                            match open_by_abs_path
 2162                                .await
 2163                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2164                            {
 2165                                Ok(item) => {
 2166                                    pane.update_in(cx, |pane, window, cx| {
 2167                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2168                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2169                                        if let Some(data) = entry.data {
 2170                                            navigated |= item.navigate(data, window, cx);
 2171                                        }
 2172                                    })?;
 2173                                }
 2174                                Err(open_by_abs_path_e) => {
 2175                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2176                                }
 2177                            }
 2178                        }
 2179                    }
 2180                }
 2181
 2182                if !navigated {
 2183                    workspace
 2184                        .update_in(cx, |workspace, window, cx| {
 2185                            Self::navigate_history(workspace, pane, mode, window, cx)
 2186                        })?
 2187                        .await?;
 2188                }
 2189
 2190                Ok(())
 2191            })
 2192        } else {
 2193            Task::ready(Ok(()))
 2194        }
 2195    }
 2196
 2197    pub fn go_back(
 2198        &mut self,
 2199        pane: WeakEntity<Pane>,
 2200        window: &mut Window,
 2201        cx: &mut Context<Workspace>,
 2202    ) -> Task<Result<()>> {
 2203        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2204    }
 2205
 2206    pub fn go_forward(
 2207        &mut self,
 2208        pane: WeakEntity<Pane>,
 2209        window: &mut Window,
 2210        cx: &mut Context<Workspace>,
 2211    ) -> Task<Result<()>> {
 2212        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2213    }
 2214
 2215    pub fn reopen_closed_item(
 2216        &mut self,
 2217        window: &mut Window,
 2218        cx: &mut Context<Workspace>,
 2219    ) -> Task<Result<()>> {
 2220        self.navigate_history(
 2221            self.active_pane().downgrade(),
 2222            NavigationMode::ReopeningClosedItem,
 2223            window,
 2224            cx,
 2225        )
 2226    }
 2227
 2228    pub fn client(&self) -> &Arc<Client> {
 2229        &self.app_state.client
 2230    }
 2231
 2232    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2233        self.titlebar_item = Some(item);
 2234        cx.notify();
 2235    }
 2236
 2237    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2238        self.on_prompt_for_new_path = Some(prompt)
 2239    }
 2240
 2241    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2242        self.on_prompt_for_open_path = Some(prompt)
 2243    }
 2244
 2245    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2246        self.terminal_provider = Some(Box::new(provider));
 2247    }
 2248
 2249    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2250        self.debugger_provider = Some(Arc::new(provider));
 2251    }
 2252
 2253    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2254        self.debugger_provider.clone()
 2255    }
 2256
 2257    pub fn prompt_for_open_path(
 2258        &mut self,
 2259        path_prompt_options: PathPromptOptions,
 2260        lister: DirectoryLister,
 2261        window: &mut Window,
 2262        cx: &mut Context<Self>,
 2263    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2264        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2265            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2266            let rx = prompt(self, lister, window, cx);
 2267            self.on_prompt_for_open_path = Some(prompt);
 2268            rx
 2269        } else {
 2270            let (tx, rx) = oneshot::channel();
 2271            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2272
 2273            cx.spawn_in(window, async move |workspace, cx| {
 2274                let Ok(result) = abs_path.await else {
 2275                    return Ok(());
 2276                };
 2277
 2278                match result {
 2279                    Ok(result) => {
 2280                        tx.send(result).ok();
 2281                    }
 2282                    Err(err) => {
 2283                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2284                            workspace.show_portal_error(err.to_string(), cx);
 2285                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2286                            let rx = prompt(workspace, lister, window, cx);
 2287                            workspace.on_prompt_for_open_path = Some(prompt);
 2288                            rx
 2289                        })?;
 2290                        if let Ok(path) = rx.await {
 2291                            tx.send(path).ok();
 2292                        }
 2293                    }
 2294                };
 2295                anyhow::Ok(())
 2296            })
 2297            .detach();
 2298
 2299            rx
 2300        }
 2301    }
 2302
 2303    pub fn prompt_for_new_path(
 2304        &mut self,
 2305        lister: DirectoryLister,
 2306        suggested_name: Option<String>,
 2307        window: &mut Window,
 2308        cx: &mut Context<Self>,
 2309    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2310        if self.project.read(cx).is_via_collab()
 2311            || self.project.read(cx).is_via_remote_server()
 2312            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2313        {
 2314            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2315            let rx = prompt(self, lister, window, cx);
 2316            self.on_prompt_for_new_path = Some(prompt);
 2317            return rx;
 2318        }
 2319
 2320        let (tx, rx) = oneshot::channel();
 2321        cx.spawn_in(window, async move |workspace, cx| {
 2322            let abs_path = workspace.update(cx, |workspace, cx| {
 2323                let relative_to = workspace
 2324                    .most_recent_active_path(cx)
 2325                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2326                    .or_else(|| {
 2327                        let project = workspace.project.read(cx);
 2328                        project.visible_worktrees(cx).find_map(|worktree| {
 2329                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2330                        })
 2331                    })
 2332                    .or_else(std::env::home_dir)
 2333                    .unwrap_or_else(|| PathBuf::from(""));
 2334                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2335            })?;
 2336            let abs_path = match abs_path.await? {
 2337                Ok(path) => path,
 2338                Err(err) => {
 2339                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2340                        workspace.show_portal_error(err.to_string(), cx);
 2341
 2342                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2343                        let rx = prompt(workspace, lister, window, cx);
 2344                        workspace.on_prompt_for_new_path = Some(prompt);
 2345                        rx
 2346                    })?;
 2347                    if let Ok(path) = rx.await {
 2348                        tx.send(path).ok();
 2349                    }
 2350                    return anyhow::Ok(());
 2351                }
 2352            };
 2353
 2354            tx.send(abs_path.map(|path| vec![path])).ok();
 2355            anyhow::Ok(())
 2356        })
 2357        .detach();
 2358
 2359        rx
 2360    }
 2361
 2362    pub fn titlebar_item(&self) -> Option<AnyView> {
 2363        self.titlebar_item.clone()
 2364    }
 2365
 2366    /// Call the given callback with a workspace whose project is local.
 2367    ///
 2368    /// If the given workspace has a local project, then it will be passed
 2369    /// to the callback. Otherwise, a new empty window will be created.
 2370    pub fn with_local_workspace<T, F>(
 2371        &mut self,
 2372        window: &mut Window,
 2373        cx: &mut Context<Self>,
 2374        callback: F,
 2375    ) -> Task<Result<T>>
 2376    where
 2377        T: 'static,
 2378        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2379    {
 2380        if self.project.read(cx).is_local() {
 2381            Task::ready(Ok(callback(self, window, cx)))
 2382        } else {
 2383            let env = self.project.read(cx).cli_environment(cx);
 2384            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2385            cx.spawn_in(window, async move |_vh, cx| {
 2386                let (workspace, _) = task.await?;
 2387                workspace.update(cx, callback)
 2388            })
 2389        }
 2390    }
 2391
 2392    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2393        self.project.read(cx).worktrees(cx)
 2394    }
 2395
 2396    pub fn visible_worktrees<'a>(
 2397        &self,
 2398        cx: &'a App,
 2399    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2400        self.project.read(cx).visible_worktrees(cx)
 2401    }
 2402
 2403    #[cfg(any(test, feature = "test-support"))]
 2404    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2405        let futures = self
 2406            .worktrees(cx)
 2407            .filter_map(|worktree| worktree.read(cx).as_local())
 2408            .map(|worktree| worktree.scan_complete())
 2409            .collect::<Vec<_>>();
 2410        async move {
 2411            for future in futures {
 2412                future.await;
 2413            }
 2414        }
 2415    }
 2416
 2417    pub fn close_global(cx: &mut App) {
 2418        cx.defer(|cx| {
 2419            cx.windows().iter().find(|window| {
 2420                window
 2421                    .update(cx, |_, window, _| {
 2422                        if window.is_window_active() {
 2423                            //This can only get called when the window's project connection has been lost
 2424                            //so we don't need to prompt the user for anything and instead just close the window
 2425                            window.remove_window();
 2426                            true
 2427                        } else {
 2428                            false
 2429                        }
 2430                    })
 2431                    .unwrap_or(false)
 2432            });
 2433        });
 2434    }
 2435
 2436    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2437        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2438        cx.spawn_in(window, async move |_, cx| {
 2439            if prepare.await? {
 2440                cx.update(|window, _cx| window.remove_window())?;
 2441            }
 2442            anyhow::Ok(())
 2443        })
 2444        .detach_and_log_err(cx)
 2445    }
 2446
 2447    pub fn move_focused_panel_to_next_position(
 2448        &mut self,
 2449        _: &MoveFocusedPanelToNextPosition,
 2450        window: &mut Window,
 2451        cx: &mut Context<Self>,
 2452    ) {
 2453        let docks = self.all_docks();
 2454        let active_dock = docks
 2455            .into_iter()
 2456            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2457
 2458        if let Some(dock) = active_dock {
 2459            dock.update(cx, |dock, cx| {
 2460                let active_panel = dock
 2461                    .active_panel()
 2462                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2463
 2464                if let Some(panel) = active_panel {
 2465                    panel.move_to_next_position(window, cx);
 2466                }
 2467            })
 2468        }
 2469    }
 2470
 2471    pub fn prepare_to_close(
 2472        &mut self,
 2473        close_intent: CloseIntent,
 2474        window: &mut Window,
 2475        cx: &mut Context<Self>,
 2476    ) -> Task<Result<bool>> {
 2477        let active_call = self.active_call().cloned();
 2478
 2479        cx.spawn_in(window, async move |this, cx| {
 2480            this.update(cx, |this, _| {
 2481                if close_intent == CloseIntent::CloseWindow {
 2482                    this.removing = true;
 2483                }
 2484            })?;
 2485
 2486            let workspace_count = cx.update(|_window, cx| {
 2487                cx.windows()
 2488                    .iter()
 2489                    .filter(|window| window.downcast::<Workspace>().is_some())
 2490                    .count()
 2491            })?;
 2492
 2493            #[cfg(target_os = "macos")]
 2494            let save_last_workspace = false;
 2495
 2496            // On Linux and Windows, closing the last window should restore the last workspace.
 2497            #[cfg(not(target_os = "macos"))]
 2498            let save_last_workspace = {
 2499                let remaining_workspaces = cx.update(|_window, cx| {
 2500                    cx.windows()
 2501                        .iter()
 2502                        .filter_map(|window| window.downcast::<Workspace>())
 2503                        .filter_map(|workspace| {
 2504                            workspace
 2505                                .update(cx, |workspace, _, _| workspace.removing)
 2506                                .ok()
 2507                        })
 2508                        .filter(|removing| !removing)
 2509                        .count()
 2510                })?;
 2511
 2512                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2513            };
 2514
 2515            if let Some(active_call) = active_call
 2516                && workspace_count == 1
 2517                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2518            {
 2519                if close_intent == CloseIntent::CloseWindow {
 2520                    let answer = cx.update(|window, cx| {
 2521                        window.prompt(
 2522                            PromptLevel::Warning,
 2523                            "Do you want to leave the current call?",
 2524                            None,
 2525                            &["Close window and hang up", "Cancel"],
 2526                            cx,
 2527                        )
 2528                    })?;
 2529
 2530                    if answer.await.log_err() == Some(1) {
 2531                        return anyhow::Ok(false);
 2532                    } else {
 2533                        active_call
 2534                            .update(cx, |call, cx| call.hang_up(cx))?
 2535                            .await
 2536                            .log_err();
 2537                    }
 2538                }
 2539                if close_intent == CloseIntent::ReplaceWindow {
 2540                    _ = active_call.update(cx, |this, cx| {
 2541                        let workspace = cx
 2542                            .windows()
 2543                            .iter()
 2544                            .filter_map(|window| window.downcast::<Workspace>())
 2545                            .next()
 2546                            .unwrap();
 2547                        let project = workspace.read(cx)?.project.clone();
 2548                        if project.read(cx).is_shared() {
 2549                            this.unshare_project(project, cx)?;
 2550                        }
 2551                        Ok::<_, anyhow::Error>(())
 2552                    })?;
 2553                }
 2554            }
 2555
 2556            let save_result = this
 2557                .update_in(cx, |this, window, cx| {
 2558                    this.save_all_internal(SaveIntent::Close, window, cx)
 2559                })?
 2560                .await;
 2561
 2562            // If we're not quitting, but closing, we remove the workspace from
 2563            // the current session.
 2564            if close_intent != CloseIntent::Quit
 2565                && !save_last_workspace
 2566                && save_result.as_ref().is_ok_and(|&res| res)
 2567            {
 2568                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2569                    .await;
 2570            }
 2571
 2572            save_result
 2573        })
 2574    }
 2575
 2576    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2577        self.save_all_internal(
 2578            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2579            window,
 2580            cx,
 2581        )
 2582        .detach_and_log_err(cx);
 2583    }
 2584
 2585    fn send_keystrokes(
 2586        &mut self,
 2587        action: &SendKeystrokes,
 2588        window: &mut Window,
 2589        cx: &mut Context<Self>,
 2590    ) {
 2591        let keystrokes: Vec<Keystroke> = action
 2592            .0
 2593            .split(' ')
 2594            .flat_map(|k| Keystroke::parse(k).log_err())
 2595            .map(|k| {
 2596                cx.keyboard_mapper()
 2597                    .map_key_equivalent(k, true)
 2598                    .inner()
 2599                    .clone()
 2600            })
 2601            .collect();
 2602        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2603    }
 2604
 2605    pub fn send_keystrokes_impl(
 2606        &mut self,
 2607        keystrokes: Vec<Keystroke>,
 2608        window: &mut Window,
 2609        cx: &mut Context<Self>,
 2610    ) -> Shared<Task<()>> {
 2611        let mut state = self.dispatching_keystrokes.borrow_mut();
 2612        if !state.dispatched.insert(keystrokes.clone()) {
 2613            cx.propagate();
 2614            return state.task.clone().unwrap();
 2615        }
 2616
 2617        state.queue.extend(keystrokes);
 2618
 2619        let keystrokes = self.dispatching_keystrokes.clone();
 2620        if state.task.is_none() {
 2621            state.task = Some(
 2622                window
 2623                    .spawn(cx, async move |cx| {
 2624                        // limit to 100 keystrokes to avoid infinite recursion.
 2625                        for _ in 0..100 {
 2626                            let mut state = keystrokes.borrow_mut();
 2627                            let Some(keystroke) = state.queue.pop_front() else {
 2628                                state.dispatched.clear();
 2629                                state.task.take();
 2630                                return;
 2631                            };
 2632                            drop(state);
 2633                            cx.update(|window, cx| {
 2634                                let focused = window.focused(cx);
 2635                                window.dispatch_keystroke(keystroke.clone(), cx);
 2636                                if window.focused(cx) != focused {
 2637                                    // dispatch_keystroke may cause the focus to change.
 2638                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2639                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2640                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2641                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2642                                    // )
 2643                                    window.draw(cx).clear();
 2644                                }
 2645                            })
 2646                            .ok();
 2647                        }
 2648
 2649                        *keystrokes.borrow_mut() = Default::default();
 2650                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2651                    })
 2652                    .shared(),
 2653            );
 2654        }
 2655        state.task.clone().unwrap()
 2656    }
 2657
 2658    fn save_all_internal(
 2659        &mut self,
 2660        mut save_intent: SaveIntent,
 2661        window: &mut Window,
 2662        cx: &mut Context<Self>,
 2663    ) -> Task<Result<bool>> {
 2664        if self.project.read(cx).is_disconnected(cx) {
 2665            return Task::ready(Ok(true));
 2666        }
 2667        let dirty_items = self
 2668            .panes
 2669            .iter()
 2670            .flat_map(|pane| {
 2671                pane.read(cx).items().filter_map(|item| {
 2672                    if item.is_dirty(cx) {
 2673                        item.tab_content_text(0, cx);
 2674                        Some((pane.downgrade(), item.boxed_clone()))
 2675                    } else {
 2676                        None
 2677                    }
 2678                })
 2679            })
 2680            .collect::<Vec<_>>();
 2681
 2682        let project = self.project.clone();
 2683        cx.spawn_in(window, async move |workspace, cx| {
 2684            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2685                let (serialize_tasks, remaining_dirty_items) =
 2686                    workspace.update_in(cx, |workspace, window, cx| {
 2687                        let mut remaining_dirty_items = Vec::new();
 2688                        let mut serialize_tasks = Vec::new();
 2689                        for (pane, item) in dirty_items {
 2690                            if let Some(task) = item
 2691                                .to_serializable_item_handle(cx)
 2692                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2693                            {
 2694                                serialize_tasks.push(task);
 2695                            } else {
 2696                                remaining_dirty_items.push((pane, item));
 2697                            }
 2698                        }
 2699                        (serialize_tasks, remaining_dirty_items)
 2700                    })?;
 2701
 2702                futures::future::try_join_all(serialize_tasks).await?;
 2703
 2704                if remaining_dirty_items.len() > 1 {
 2705                    let answer = workspace.update_in(cx, |_, window, cx| {
 2706                        let detail = Pane::file_names_for_prompt(
 2707                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2708                            cx,
 2709                        );
 2710                        window.prompt(
 2711                            PromptLevel::Warning,
 2712                            "Do you want to save all changes in the following files?",
 2713                            Some(&detail),
 2714                            &["Save all", "Discard all", "Cancel"],
 2715                            cx,
 2716                        )
 2717                    })?;
 2718                    match answer.await.log_err() {
 2719                        Some(0) => save_intent = SaveIntent::SaveAll,
 2720                        Some(1) => save_intent = SaveIntent::Skip,
 2721                        Some(2) => return Ok(false),
 2722                        _ => {}
 2723                    }
 2724                }
 2725
 2726                remaining_dirty_items
 2727            } else {
 2728                dirty_items
 2729            };
 2730
 2731            for (pane, item) in dirty_items {
 2732                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2733                    (
 2734                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2735                        item.project_entry_ids(cx),
 2736                    )
 2737                })?;
 2738                if (singleton || !project_entry_ids.is_empty())
 2739                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2740                {
 2741                    return Ok(false);
 2742                }
 2743            }
 2744            Ok(true)
 2745        })
 2746    }
 2747
 2748    pub fn open_workspace_for_paths(
 2749        &mut self,
 2750        replace_current_window: bool,
 2751        paths: Vec<PathBuf>,
 2752        window: &mut Window,
 2753        cx: &mut Context<Self>,
 2754    ) -> Task<Result<()>> {
 2755        let window_handle = window.window_handle().downcast::<Self>();
 2756        let is_remote = self.project.read(cx).is_via_collab();
 2757        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2758        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2759
 2760        let window_to_replace = if replace_current_window {
 2761            window_handle
 2762        } else if is_remote || has_worktree || has_dirty_items {
 2763            None
 2764        } else {
 2765            window_handle
 2766        };
 2767        let app_state = self.app_state.clone();
 2768
 2769        cx.spawn(async move |_, cx| {
 2770            cx.update(|cx| {
 2771                open_paths(
 2772                    &paths,
 2773                    app_state,
 2774                    OpenOptions {
 2775                        replace_window: window_to_replace,
 2776                        ..Default::default()
 2777                    },
 2778                    cx,
 2779                )
 2780            })?
 2781            .await?;
 2782            Ok(())
 2783        })
 2784    }
 2785
 2786    #[allow(clippy::type_complexity)]
 2787    pub fn open_paths(
 2788        &mut self,
 2789        mut abs_paths: Vec<PathBuf>,
 2790        options: OpenOptions,
 2791        pane: Option<WeakEntity<Pane>>,
 2792        window: &mut Window,
 2793        cx: &mut Context<Self>,
 2794    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2795        let fs = self.app_state.fs.clone();
 2796
 2797        // Sort the paths to ensure we add worktrees for parents before their children.
 2798        abs_paths.sort_unstable();
 2799        cx.spawn_in(window, async move |this, cx| {
 2800            let mut tasks = Vec::with_capacity(abs_paths.len());
 2801
 2802            for abs_path in &abs_paths {
 2803                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2804                    OpenVisible::All => Some(true),
 2805                    OpenVisible::None => Some(false),
 2806                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2807                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2808                        Some(None) => Some(true),
 2809                        None => None,
 2810                    },
 2811                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2812                        Some(Some(metadata)) => Some(metadata.is_dir),
 2813                        Some(None) => Some(false),
 2814                        None => None,
 2815                    },
 2816                };
 2817                let project_path = match visible {
 2818                    Some(visible) => match this
 2819                        .update(cx, |this, cx| {
 2820                            Workspace::project_path_for_path(
 2821                                this.project.clone(),
 2822                                abs_path,
 2823                                visible,
 2824                                cx,
 2825                            )
 2826                        })
 2827                        .log_err()
 2828                    {
 2829                        Some(project_path) => project_path.await.log_err(),
 2830                        None => None,
 2831                    },
 2832                    None => None,
 2833                };
 2834
 2835                let this = this.clone();
 2836                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2837                let fs = fs.clone();
 2838                let pane = pane.clone();
 2839                let task = cx.spawn(async move |cx| {
 2840                    let (worktree, project_path) = project_path?;
 2841                    if fs.is_dir(&abs_path).await {
 2842                        this.update(cx, |workspace, cx| {
 2843                            let worktree = worktree.read(cx);
 2844                            let worktree_abs_path = worktree.abs_path();
 2845                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2846                                worktree.root_entry()
 2847                            } else {
 2848                                abs_path
 2849                                    .strip_prefix(worktree_abs_path.as_ref())
 2850                                    .ok()
 2851                                    .and_then(|relative_path| {
 2852                                        let relative_path =
 2853                                            RelPath::new(relative_path, PathStyle::local())
 2854                                                .log_err()?;
 2855                                        worktree.entry_for_path(&relative_path)
 2856                                    })
 2857                            }
 2858                            .map(|entry| entry.id);
 2859                            if let Some(entry_id) = entry_id {
 2860                                workspace.project.update(cx, |_, cx| {
 2861                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2862                                })
 2863                            }
 2864                        })
 2865                        .ok()?;
 2866                        None
 2867                    } else {
 2868                        Some(
 2869                            this.update_in(cx, |this, window, cx| {
 2870                                this.open_path(
 2871                                    project_path,
 2872                                    pane,
 2873                                    options.focus.unwrap_or(true),
 2874                                    window,
 2875                                    cx,
 2876                                )
 2877                            })
 2878                            .ok()?
 2879                            .await,
 2880                        )
 2881                    }
 2882                });
 2883                tasks.push(task);
 2884            }
 2885
 2886            futures::future::join_all(tasks).await
 2887        })
 2888    }
 2889
 2890    pub fn open_resolved_path(
 2891        &mut self,
 2892        path: ResolvedPath,
 2893        window: &mut Window,
 2894        cx: &mut Context<Self>,
 2895    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2896        match path {
 2897            ResolvedPath::ProjectPath { project_path, .. } => {
 2898                self.open_path(project_path, None, true, window, cx)
 2899            }
 2900            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2901                PathBuf::from(path),
 2902                OpenOptions {
 2903                    visible: Some(OpenVisible::None),
 2904                    ..Default::default()
 2905                },
 2906                window,
 2907                cx,
 2908            ),
 2909        }
 2910    }
 2911
 2912    pub fn absolute_path_of_worktree(
 2913        &self,
 2914        worktree_id: WorktreeId,
 2915        cx: &mut Context<Self>,
 2916    ) -> Option<PathBuf> {
 2917        self.project
 2918            .read(cx)
 2919            .worktree_for_id(worktree_id, cx)
 2920            // TODO: use `abs_path` or `root_dir`
 2921            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2922    }
 2923
 2924    fn add_folder_to_project(
 2925        &mut self,
 2926        _: &AddFolderToProject,
 2927        window: &mut Window,
 2928        cx: &mut Context<Self>,
 2929    ) {
 2930        let project = self.project.read(cx);
 2931        if project.is_via_collab() {
 2932            self.show_error(
 2933                &anyhow!("You cannot add folders to someone else's project"),
 2934                cx,
 2935            );
 2936            return;
 2937        }
 2938        let paths = self.prompt_for_open_path(
 2939            PathPromptOptions {
 2940                files: false,
 2941                directories: true,
 2942                multiple: true,
 2943                prompt: None,
 2944            },
 2945            DirectoryLister::Project(self.project.clone()),
 2946            window,
 2947            cx,
 2948        );
 2949        cx.spawn_in(window, async move |this, cx| {
 2950            if let Some(paths) = paths.await.log_err().flatten() {
 2951                let results = this
 2952                    .update_in(cx, |this, window, cx| {
 2953                        this.open_paths(
 2954                            paths,
 2955                            OpenOptions {
 2956                                visible: Some(OpenVisible::All),
 2957                                ..Default::default()
 2958                            },
 2959                            None,
 2960                            window,
 2961                            cx,
 2962                        )
 2963                    })?
 2964                    .await;
 2965                for result in results.into_iter().flatten() {
 2966                    result.log_err();
 2967                }
 2968            }
 2969            anyhow::Ok(())
 2970        })
 2971        .detach_and_log_err(cx);
 2972    }
 2973
 2974    pub fn project_path_for_path(
 2975        project: Entity<Project>,
 2976        abs_path: &Path,
 2977        visible: bool,
 2978        cx: &mut App,
 2979    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2980        let entry = project.update(cx, |project, cx| {
 2981            project.find_or_create_worktree(abs_path, visible, cx)
 2982        });
 2983        cx.spawn(async move |cx| {
 2984            let (worktree, path) = entry.await?;
 2985            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2986            Ok((
 2987                worktree,
 2988                ProjectPath {
 2989                    worktree_id,
 2990                    path: path,
 2991                },
 2992            ))
 2993        })
 2994    }
 2995
 2996    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2997        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2998    }
 2999
 3000    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3001        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3002    }
 3003
 3004    pub fn items_of_type<'a, T: Item>(
 3005        &'a self,
 3006        cx: &'a App,
 3007    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3008        self.panes
 3009            .iter()
 3010            .flat_map(|pane| pane.read(cx).items_of_type())
 3011    }
 3012
 3013    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3014        self.active_pane().read(cx).active_item()
 3015    }
 3016
 3017    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3018        let item = self.active_item(cx)?;
 3019        item.to_any_view().downcast::<I>().ok()
 3020    }
 3021
 3022    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3023        self.active_item(cx).and_then(|item| item.project_path(cx))
 3024    }
 3025
 3026    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3027        self.recent_navigation_history_iter(cx)
 3028            .filter_map(|(path, abs_path)| {
 3029                let worktree = self
 3030                    .project
 3031                    .read(cx)
 3032                    .worktree_for_id(path.worktree_id, cx)?;
 3033                if worktree.read(cx).is_visible() {
 3034                    abs_path
 3035                } else {
 3036                    None
 3037                }
 3038            })
 3039            .next()
 3040    }
 3041
 3042    pub fn save_active_item(
 3043        &mut self,
 3044        save_intent: SaveIntent,
 3045        window: &mut Window,
 3046        cx: &mut App,
 3047    ) -> Task<Result<()>> {
 3048        let project = self.project.clone();
 3049        let pane = self.active_pane();
 3050        let item = pane.read(cx).active_item();
 3051        let pane = pane.downgrade();
 3052
 3053        window.spawn(cx, async move |cx| {
 3054            if let Some(item) = item {
 3055                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3056                    .await
 3057                    .map(|_| ())
 3058            } else {
 3059                Ok(())
 3060            }
 3061        })
 3062    }
 3063
 3064    pub fn close_inactive_items_and_panes(
 3065        &mut self,
 3066        action: &CloseInactiveTabsAndPanes,
 3067        window: &mut Window,
 3068        cx: &mut Context<Self>,
 3069    ) {
 3070        if let Some(task) = self.close_all_internal(
 3071            true,
 3072            action.save_intent.unwrap_or(SaveIntent::Close),
 3073            window,
 3074            cx,
 3075        ) {
 3076            task.detach_and_log_err(cx)
 3077        }
 3078    }
 3079
 3080    pub fn close_all_items_and_panes(
 3081        &mut self,
 3082        action: &CloseAllItemsAndPanes,
 3083        window: &mut Window,
 3084        cx: &mut Context<Self>,
 3085    ) {
 3086        if let Some(task) = self.close_all_internal(
 3087            false,
 3088            action.save_intent.unwrap_or(SaveIntent::Close),
 3089            window,
 3090            cx,
 3091        ) {
 3092            task.detach_and_log_err(cx)
 3093        }
 3094    }
 3095
 3096    fn close_all_internal(
 3097        &mut self,
 3098        retain_active_pane: bool,
 3099        save_intent: SaveIntent,
 3100        window: &mut Window,
 3101        cx: &mut Context<Self>,
 3102    ) -> Option<Task<Result<()>>> {
 3103        let current_pane = self.active_pane();
 3104
 3105        let mut tasks = Vec::new();
 3106
 3107        if retain_active_pane {
 3108            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3109                pane.close_other_items(
 3110                    &CloseOtherItems {
 3111                        save_intent: None,
 3112                        close_pinned: false,
 3113                    },
 3114                    None,
 3115                    window,
 3116                    cx,
 3117                )
 3118            });
 3119
 3120            tasks.push(current_pane_close);
 3121        }
 3122
 3123        for pane in self.panes() {
 3124            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3125                continue;
 3126            }
 3127
 3128            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3129                pane.close_all_items(
 3130                    &CloseAllItems {
 3131                        save_intent: Some(save_intent),
 3132                        close_pinned: false,
 3133                    },
 3134                    window,
 3135                    cx,
 3136                )
 3137            });
 3138
 3139            tasks.push(close_pane_items)
 3140        }
 3141
 3142        if tasks.is_empty() {
 3143            None
 3144        } else {
 3145            Some(cx.spawn_in(window, async move |_, _| {
 3146                for task in tasks {
 3147                    task.await?
 3148                }
 3149                Ok(())
 3150            }))
 3151        }
 3152    }
 3153
 3154    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3155        self.dock_at_position(position).read(cx).is_open()
 3156    }
 3157
 3158    pub fn toggle_dock(
 3159        &mut self,
 3160        dock_side: DockPosition,
 3161        window: &mut Window,
 3162        cx: &mut Context<Self>,
 3163    ) {
 3164        let mut focus_center = false;
 3165        let mut reveal_dock = false;
 3166
 3167        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3168        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3169        if was_visible {
 3170            self.save_open_dock_positions(cx);
 3171        }
 3172
 3173        let dock = self.dock_at_position(dock_side);
 3174        dock.update(cx, |dock, cx| {
 3175            dock.set_open(!was_visible, window, cx);
 3176
 3177            if dock.active_panel().is_none() {
 3178                let Some(panel_ix) = dock
 3179                    .first_enabled_panel_idx(cx)
 3180                    .log_with_level(log::Level::Info)
 3181                else {
 3182                    return;
 3183                };
 3184                dock.activate_panel(panel_ix, window, cx);
 3185            }
 3186
 3187            if let Some(active_panel) = dock.active_panel() {
 3188                if was_visible {
 3189                    if active_panel
 3190                        .panel_focus_handle(cx)
 3191                        .contains_focused(window, cx)
 3192                    {
 3193                        focus_center = true;
 3194                    }
 3195                } else {
 3196                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3197                    window.focus(focus_handle, cx);
 3198                    reveal_dock = true;
 3199                }
 3200            }
 3201        });
 3202
 3203        if reveal_dock {
 3204            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3205        }
 3206
 3207        if focus_center {
 3208            self.active_pane
 3209                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3210        }
 3211
 3212        cx.notify();
 3213        self.serialize_workspace(window, cx);
 3214    }
 3215
 3216    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3217        self.all_docks().into_iter().find(|&dock| {
 3218            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3219        })
 3220    }
 3221
 3222    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3223        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3224            self.save_open_dock_positions(cx);
 3225            dock.update(cx, |dock, cx| {
 3226                dock.set_open(false, window, cx);
 3227            });
 3228            return true;
 3229        }
 3230        false
 3231    }
 3232
 3233    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3234        self.save_open_dock_positions(cx);
 3235        for dock in self.all_docks() {
 3236            dock.update(cx, |dock, cx| {
 3237                dock.set_open(false, window, cx);
 3238            });
 3239        }
 3240
 3241        cx.focus_self(window);
 3242        cx.notify();
 3243        self.serialize_workspace(window, cx);
 3244    }
 3245
 3246    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3247        self.all_docks()
 3248            .into_iter()
 3249            .filter_map(|dock| {
 3250                let dock_ref = dock.read(cx);
 3251                if dock_ref.is_open() {
 3252                    Some(dock_ref.position())
 3253                } else {
 3254                    None
 3255                }
 3256            })
 3257            .collect()
 3258    }
 3259
 3260    /// Saves the positions of currently open docks.
 3261    ///
 3262    /// Updates `last_open_dock_positions` with positions of all currently open
 3263    /// docks, to later be restored by the 'Toggle All Docks' action.
 3264    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3265        let open_dock_positions = self.get_open_dock_positions(cx);
 3266        if !open_dock_positions.is_empty() {
 3267            self.last_open_dock_positions = open_dock_positions;
 3268        }
 3269    }
 3270
 3271    /// Toggles all docks between open and closed states.
 3272    ///
 3273    /// If any docks are open, closes all and remembers their positions. If all
 3274    /// docks are closed, restores the last remembered dock configuration.
 3275    fn toggle_all_docks(
 3276        &mut self,
 3277        _: &ToggleAllDocks,
 3278        window: &mut Window,
 3279        cx: &mut Context<Self>,
 3280    ) {
 3281        let open_dock_positions = self.get_open_dock_positions(cx);
 3282
 3283        if !open_dock_positions.is_empty() {
 3284            self.close_all_docks(window, cx);
 3285        } else if !self.last_open_dock_positions.is_empty() {
 3286            self.restore_last_open_docks(window, cx);
 3287        }
 3288    }
 3289
 3290    /// Reopens docks from the most recently remembered configuration.
 3291    ///
 3292    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3293    /// and clears the stored positions.
 3294    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3295        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3296
 3297        for position in positions_to_open {
 3298            let dock = self.dock_at_position(position);
 3299            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3300        }
 3301
 3302        cx.focus_self(window);
 3303        cx.notify();
 3304        self.serialize_workspace(window, cx);
 3305    }
 3306
 3307    /// Transfer focus to the panel of the given type.
 3308    pub fn focus_panel<T: Panel>(
 3309        &mut self,
 3310        window: &mut Window,
 3311        cx: &mut Context<Self>,
 3312    ) -> Option<Entity<T>> {
 3313        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3314        panel.to_any().downcast().ok()
 3315    }
 3316
 3317    /// Focus the panel of the given type if it isn't already focused. If it is
 3318    /// already focused, then transfer focus back to the workspace center.
 3319    pub fn toggle_panel_focus<T: Panel>(
 3320        &mut self,
 3321        window: &mut Window,
 3322        cx: &mut Context<Self>,
 3323    ) -> bool {
 3324        let mut did_focus_panel = false;
 3325        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3326            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3327            did_focus_panel
 3328        });
 3329        did_focus_panel
 3330    }
 3331
 3332    pub fn activate_panel_for_proto_id(
 3333        &mut self,
 3334        panel_id: PanelId,
 3335        window: &mut Window,
 3336        cx: &mut Context<Self>,
 3337    ) -> Option<Arc<dyn PanelHandle>> {
 3338        let mut panel = None;
 3339        for dock in self.all_docks() {
 3340            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3341                panel = dock.update(cx, |dock, cx| {
 3342                    dock.activate_panel(panel_index, window, cx);
 3343                    dock.set_open(true, window, cx);
 3344                    dock.active_panel().cloned()
 3345                });
 3346                break;
 3347            }
 3348        }
 3349
 3350        if panel.is_some() {
 3351            cx.notify();
 3352            self.serialize_workspace(window, cx);
 3353        }
 3354
 3355        panel
 3356    }
 3357
 3358    /// Focus or unfocus the given panel type, depending on the given callback.
 3359    fn focus_or_unfocus_panel<T: Panel>(
 3360        &mut self,
 3361        window: &mut Window,
 3362        cx: &mut Context<Self>,
 3363        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3364    ) -> Option<Arc<dyn PanelHandle>> {
 3365        let mut result_panel = None;
 3366        let mut serialize = false;
 3367        for dock in self.all_docks() {
 3368            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3369                let mut focus_center = false;
 3370                let panel = dock.update(cx, |dock, cx| {
 3371                    dock.activate_panel(panel_index, window, cx);
 3372
 3373                    let panel = dock.active_panel().cloned();
 3374                    if let Some(panel) = panel.as_ref() {
 3375                        if should_focus(&**panel, window, cx) {
 3376                            dock.set_open(true, window, cx);
 3377                            panel.panel_focus_handle(cx).focus(window, cx);
 3378                        } else {
 3379                            focus_center = true;
 3380                        }
 3381                    }
 3382                    panel
 3383                });
 3384
 3385                if focus_center {
 3386                    self.active_pane
 3387                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3388                }
 3389
 3390                result_panel = panel;
 3391                serialize = true;
 3392                break;
 3393            }
 3394        }
 3395
 3396        if serialize {
 3397            self.serialize_workspace(window, cx);
 3398        }
 3399
 3400        cx.notify();
 3401        result_panel
 3402    }
 3403
 3404    /// Open the panel of the given type
 3405    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3406        for dock in self.all_docks() {
 3407            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3408                dock.update(cx, |dock, cx| {
 3409                    dock.activate_panel(panel_index, window, cx);
 3410                    dock.set_open(true, window, cx);
 3411                });
 3412            }
 3413        }
 3414    }
 3415
 3416    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3417        for dock in self.all_docks().iter() {
 3418            dock.update(cx, |dock, cx| {
 3419                if dock.panel::<T>().is_some() {
 3420                    dock.set_open(false, window, cx)
 3421                }
 3422            })
 3423        }
 3424    }
 3425
 3426    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3427        self.all_docks()
 3428            .iter()
 3429            .find_map(|dock| dock.read(cx).panel::<T>())
 3430    }
 3431
 3432    fn dismiss_zoomed_items_to_reveal(
 3433        &mut self,
 3434        dock_to_reveal: Option<DockPosition>,
 3435        window: &mut Window,
 3436        cx: &mut Context<Self>,
 3437    ) {
 3438        // If a center pane is zoomed, unzoom it.
 3439        for pane in &self.panes {
 3440            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3441                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3442            }
 3443        }
 3444
 3445        // If another dock is zoomed, hide it.
 3446        let mut focus_center = false;
 3447        for dock in self.all_docks() {
 3448            dock.update(cx, |dock, cx| {
 3449                if Some(dock.position()) != dock_to_reveal
 3450                    && let Some(panel) = dock.active_panel()
 3451                    && panel.is_zoomed(window, cx)
 3452                {
 3453                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3454                    dock.set_open(false, window, cx);
 3455                }
 3456            });
 3457        }
 3458
 3459        if focus_center {
 3460            self.active_pane
 3461                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3462        }
 3463
 3464        if self.zoomed_position != dock_to_reveal {
 3465            self.zoomed = None;
 3466            self.zoomed_position = None;
 3467            cx.emit(Event::ZoomChanged);
 3468        }
 3469
 3470        cx.notify();
 3471    }
 3472
 3473    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3474        let pane = cx.new(|cx| {
 3475            let mut pane = Pane::new(
 3476                self.weak_handle(),
 3477                self.project.clone(),
 3478                self.pane_history_timestamp.clone(),
 3479                None,
 3480                NewFile.boxed_clone(),
 3481                true,
 3482                window,
 3483                cx,
 3484            );
 3485            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3486            pane
 3487        });
 3488        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3489            .detach();
 3490        self.panes.push(pane.clone());
 3491
 3492        window.focus(&pane.focus_handle(cx), cx);
 3493
 3494        cx.emit(Event::PaneAdded(pane.clone()));
 3495        pane
 3496    }
 3497
 3498    pub fn add_item_to_center(
 3499        &mut self,
 3500        item: Box<dyn ItemHandle>,
 3501        window: &mut Window,
 3502        cx: &mut Context<Self>,
 3503    ) -> bool {
 3504        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3505            if let Some(center_pane) = center_pane.upgrade() {
 3506                center_pane.update(cx, |pane, cx| {
 3507                    pane.add_item(item, true, true, None, window, cx)
 3508                });
 3509                true
 3510            } else {
 3511                false
 3512            }
 3513        } else {
 3514            false
 3515        }
 3516    }
 3517
 3518    pub fn add_item_to_active_pane(
 3519        &mut self,
 3520        item: Box<dyn ItemHandle>,
 3521        destination_index: Option<usize>,
 3522        focus_item: bool,
 3523        window: &mut Window,
 3524        cx: &mut App,
 3525    ) {
 3526        self.add_item(
 3527            self.active_pane.clone(),
 3528            item,
 3529            destination_index,
 3530            false,
 3531            focus_item,
 3532            window,
 3533            cx,
 3534        )
 3535    }
 3536
 3537    pub fn add_item(
 3538        &mut self,
 3539        pane: Entity<Pane>,
 3540        item: Box<dyn ItemHandle>,
 3541        destination_index: Option<usize>,
 3542        activate_pane: bool,
 3543        focus_item: bool,
 3544        window: &mut Window,
 3545        cx: &mut App,
 3546    ) {
 3547        pane.update(cx, |pane, cx| {
 3548            pane.add_item(
 3549                item,
 3550                activate_pane,
 3551                focus_item,
 3552                destination_index,
 3553                window,
 3554                cx,
 3555            )
 3556        });
 3557    }
 3558
 3559    pub fn split_item(
 3560        &mut self,
 3561        split_direction: SplitDirection,
 3562        item: Box<dyn ItemHandle>,
 3563        window: &mut Window,
 3564        cx: &mut Context<Self>,
 3565    ) {
 3566        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3567        self.add_item(new_pane, item, None, true, true, window, cx);
 3568    }
 3569
 3570    pub fn open_abs_path(
 3571        &mut self,
 3572        abs_path: PathBuf,
 3573        options: OpenOptions,
 3574        window: &mut Window,
 3575        cx: &mut Context<Self>,
 3576    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3577        cx.spawn_in(window, async move |workspace, cx| {
 3578            let open_paths_task_result = workspace
 3579                .update_in(cx, |workspace, window, cx| {
 3580                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3581                })
 3582                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3583                .await;
 3584            anyhow::ensure!(
 3585                open_paths_task_result.len() == 1,
 3586                "open abs path {abs_path:?} task returned incorrect number of results"
 3587            );
 3588            match open_paths_task_result
 3589                .into_iter()
 3590                .next()
 3591                .expect("ensured single task result")
 3592            {
 3593                Some(open_result) => {
 3594                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3595                }
 3596                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3597            }
 3598        })
 3599    }
 3600
 3601    pub fn split_abs_path(
 3602        &mut self,
 3603        abs_path: PathBuf,
 3604        visible: bool,
 3605        window: &mut Window,
 3606        cx: &mut Context<Self>,
 3607    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3608        let project_path_task =
 3609            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3610        cx.spawn_in(window, async move |this, cx| {
 3611            let (_, path) = project_path_task.await?;
 3612            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3613                .await
 3614        })
 3615    }
 3616
 3617    pub fn open_path(
 3618        &mut self,
 3619        path: impl Into<ProjectPath>,
 3620        pane: Option<WeakEntity<Pane>>,
 3621        focus_item: bool,
 3622        window: &mut Window,
 3623        cx: &mut App,
 3624    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3625        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3626    }
 3627
 3628    pub fn open_path_preview(
 3629        &mut self,
 3630        path: impl Into<ProjectPath>,
 3631        pane: Option<WeakEntity<Pane>>,
 3632        focus_item: bool,
 3633        allow_preview: bool,
 3634        activate: bool,
 3635        window: &mut Window,
 3636        cx: &mut App,
 3637    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3638        let pane = pane.unwrap_or_else(|| {
 3639            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3640                self.panes
 3641                    .first()
 3642                    .expect("There must be an active pane")
 3643                    .downgrade()
 3644            })
 3645        });
 3646
 3647        let project_path = path.into();
 3648        let task = self.load_path(project_path.clone(), window, cx);
 3649        window.spawn(cx, async move |cx| {
 3650            let (project_entry_id, build_item) = task.await?;
 3651
 3652            pane.update_in(cx, |pane, window, cx| {
 3653                pane.open_item(
 3654                    project_entry_id,
 3655                    project_path,
 3656                    focus_item,
 3657                    allow_preview,
 3658                    activate,
 3659                    None,
 3660                    window,
 3661                    cx,
 3662                    build_item,
 3663                )
 3664            })
 3665        })
 3666    }
 3667
 3668    pub fn split_path(
 3669        &mut self,
 3670        path: impl Into<ProjectPath>,
 3671        window: &mut Window,
 3672        cx: &mut Context<Self>,
 3673    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3674        self.split_path_preview(path, false, None, window, cx)
 3675    }
 3676
 3677    pub fn split_path_preview(
 3678        &mut self,
 3679        path: impl Into<ProjectPath>,
 3680        allow_preview: bool,
 3681        split_direction: Option<SplitDirection>,
 3682        window: &mut Window,
 3683        cx: &mut Context<Self>,
 3684    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3685        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3686            self.panes
 3687                .first()
 3688                .expect("There must be an active pane")
 3689                .downgrade()
 3690        });
 3691
 3692        if let Member::Pane(center_pane) = &self.center.root
 3693            && center_pane.read(cx).items_len() == 0
 3694        {
 3695            return self.open_path(path, Some(pane), true, window, cx);
 3696        }
 3697
 3698        let project_path = path.into();
 3699        let task = self.load_path(project_path.clone(), window, cx);
 3700        cx.spawn_in(window, async move |this, cx| {
 3701            let (project_entry_id, build_item) = task.await?;
 3702            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3703                let pane = pane.upgrade()?;
 3704                let new_pane = this.split_pane(
 3705                    pane,
 3706                    split_direction.unwrap_or(SplitDirection::Right),
 3707                    window,
 3708                    cx,
 3709                );
 3710                new_pane.update(cx, |new_pane, cx| {
 3711                    Some(new_pane.open_item(
 3712                        project_entry_id,
 3713                        project_path,
 3714                        true,
 3715                        allow_preview,
 3716                        true,
 3717                        None,
 3718                        window,
 3719                        cx,
 3720                        build_item,
 3721                    ))
 3722                })
 3723            })
 3724            .map(|option| option.context("pane was dropped"))?
 3725        })
 3726    }
 3727
 3728    fn load_path(
 3729        &mut self,
 3730        path: ProjectPath,
 3731        window: &mut Window,
 3732        cx: &mut App,
 3733    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3734        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3735        registry.open_path(self.project(), &path, window, cx)
 3736    }
 3737
 3738    pub fn find_project_item<T>(
 3739        &self,
 3740        pane: &Entity<Pane>,
 3741        project_item: &Entity<T::Item>,
 3742        cx: &App,
 3743    ) -> Option<Entity<T>>
 3744    where
 3745        T: ProjectItem,
 3746    {
 3747        use project::ProjectItem as _;
 3748        let project_item = project_item.read(cx);
 3749        let entry_id = project_item.entry_id(cx);
 3750        let project_path = project_item.project_path(cx);
 3751
 3752        let mut item = None;
 3753        if let Some(entry_id) = entry_id {
 3754            item = pane.read(cx).item_for_entry(entry_id, cx);
 3755        }
 3756        if item.is_none()
 3757            && let Some(project_path) = project_path
 3758        {
 3759            item = pane.read(cx).item_for_path(project_path, cx);
 3760        }
 3761
 3762        item.and_then(|item| item.downcast::<T>())
 3763    }
 3764
 3765    pub fn is_project_item_open<T>(
 3766        &self,
 3767        pane: &Entity<Pane>,
 3768        project_item: &Entity<T::Item>,
 3769        cx: &App,
 3770    ) -> bool
 3771    where
 3772        T: ProjectItem,
 3773    {
 3774        self.find_project_item::<T>(pane, project_item, cx)
 3775            .is_some()
 3776    }
 3777
 3778    pub fn open_project_item<T>(
 3779        &mut self,
 3780        pane: Entity<Pane>,
 3781        project_item: Entity<T::Item>,
 3782        activate_pane: bool,
 3783        focus_item: bool,
 3784        keep_old_preview: bool,
 3785        allow_new_preview: bool,
 3786        window: &mut Window,
 3787        cx: &mut Context<Self>,
 3788    ) -> Entity<T>
 3789    where
 3790        T: ProjectItem,
 3791    {
 3792        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3793
 3794        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3795            if !keep_old_preview
 3796                && let Some(old_id) = old_item_id
 3797                && old_id != item.item_id()
 3798            {
 3799                // switching to a different item, so unpreview old active item
 3800                pane.update(cx, |pane, _| {
 3801                    pane.unpreview_item_if_preview(old_id);
 3802                });
 3803            }
 3804
 3805            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3806            if !allow_new_preview {
 3807                pane.update(cx, |pane, _| {
 3808                    pane.unpreview_item_if_preview(item.item_id());
 3809                });
 3810            }
 3811            return item;
 3812        }
 3813
 3814        let item = pane.update(cx, |pane, cx| {
 3815            cx.new(|cx| {
 3816                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3817            })
 3818        });
 3819        let mut destination_index = None;
 3820        pane.update(cx, |pane, cx| {
 3821            if !keep_old_preview && let Some(old_id) = old_item_id {
 3822                pane.unpreview_item_if_preview(old_id);
 3823            }
 3824            if allow_new_preview {
 3825                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3826            }
 3827        });
 3828
 3829        self.add_item(
 3830            pane,
 3831            Box::new(item.clone()),
 3832            destination_index,
 3833            activate_pane,
 3834            focus_item,
 3835            window,
 3836            cx,
 3837        );
 3838        item
 3839    }
 3840
 3841    pub fn open_shared_screen(
 3842        &mut self,
 3843        peer_id: PeerId,
 3844        window: &mut Window,
 3845        cx: &mut Context<Self>,
 3846    ) {
 3847        if let Some(shared_screen) =
 3848            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3849        {
 3850            self.active_pane.update(cx, |pane, cx| {
 3851                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3852            });
 3853        }
 3854    }
 3855
 3856    pub fn activate_item(
 3857        &mut self,
 3858        item: &dyn ItemHandle,
 3859        activate_pane: bool,
 3860        focus_item: bool,
 3861        window: &mut Window,
 3862        cx: &mut App,
 3863    ) -> bool {
 3864        let result = self.panes.iter().find_map(|pane| {
 3865            pane.read(cx)
 3866                .index_for_item(item)
 3867                .map(|ix| (pane.clone(), ix))
 3868        });
 3869        if let Some((pane, ix)) = result {
 3870            pane.update(cx, |pane, cx| {
 3871                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3872            });
 3873            true
 3874        } else {
 3875            false
 3876        }
 3877    }
 3878
 3879    fn activate_pane_at_index(
 3880        &mut self,
 3881        action: &ActivatePane,
 3882        window: &mut Window,
 3883        cx: &mut Context<Self>,
 3884    ) {
 3885        let panes = self.center.panes();
 3886        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3887            window.focus(&pane.focus_handle(cx), cx);
 3888        } else {
 3889            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3890                .detach();
 3891        }
 3892    }
 3893
 3894    fn move_item_to_pane_at_index(
 3895        &mut self,
 3896        action: &MoveItemToPane,
 3897        window: &mut Window,
 3898        cx: &mut Context<Self>,
 3899    ) {
 3900        let panes = self.center.panes();
 3901        let destination = match panes.get(action.destination) {
 3902            Some(&destination) => destination.clone(),
 3903            None => {
 3904                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3905                    return;
 3906                }
 3907                let direction = SplitDirection::Right;
 3908                let split_off_pane = self
 3909                    .find_pane_in_direction(direction, cx)
 3910                    .unwrap_or_else(|| self.active_pane.clone());
 3911                let new_pane = self.add_pane(window, cx);
 3912                if self
 3913                    .center
 3914                    .split(&split_off_pane, &new_pane, direction, cx)
 3915                    .log_err()
 3916                    .is_none()
 3917                {
 3918                    return;
 3919                };
 3920                new_pane
 3921            }
 3922        };
 3923
 3924        if action.clone {
 3925            if self
 3926                .active_pane
 3927                .read(cx)
 3928                .active_item()
 3929                .is_some_and(|item| item.can_split(cx))
 3930            {
 3931                clone_active_item(
 3932                    self.database_id(),
 3933                    &self.active_pane,
 3934                    &destination,
 3935                    action.focus,
 3936                    window,
 3937                    cx,
 3938                );
 3939                return;
 3940            }
 3941        }
 3942        move_active_item(
 3943            &self.active_pane,
 3944            &destination,
 3945            action.focus,
 3946            true,
 3947            window,
 3948            cx,
 3949        )
 3950    }
 3951
 3952    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3953        let panes = self.center.panes();
 3954        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3955            let next_ix = (ix + 1) % panes.len();
 3956            let next_pane = panes[next_ix].clone();
 3957            window.focus(&next_pane.focus_handle(cx), cx);
 3958        }
 3959    }
 3960
 3961    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3962        let panes = self.center.panes();
 3963        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3964            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3965            let prev_pane = panes[prev_ix].clone();
 3966            window.focus(&prev_pane.focus_handle(cx), cx);
 3967        }
 3968    }
 3969
 3970    pub fn activate_pane_in_direction(
 3971        &mut self,
 3972        direction: SplitDirection,
 3973        window: &mut Window,
 3974        cx: &mut App,
 3975    ) {
 3976        use ActivateInDirectionTarget as Target;
 3977        enum Origin {
 3978            LeftDock,
 3979            RightDock,
 3980            BottomDock,
 3981            Center,
 3982        }
 3983
 3984        let origin: Origin = [
 3985            (&self.left_dock, Origin::LeftDock),
 3986            (&self.right_dock, Origin::RightDock),
 3987            (&self.bottom_dock, Origin::BottomDock),
 3988        ]
 3989        .into_iter()
 3990        .find_map(|(dock, origin)| {
 3991            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3992                Some(origin)
 3993            } else {
 3994                None
 3995            }
 3996        })
 3997        .unwrap_or(Origin::Center);
 3998
 3999        let get_last_active_pane = || {
 4000            let pane = self
 4001                .last_active_center_pane
 4002                .clone()
 4003                .unwrap_or_else(|| {
 4004                    self.panes
 4005                        .first()
 4006                        .expect("There must be an active pane")
 4007                        .downgrade()
 4008                })
 4009                .upgrade()?;
 4010            (pane.read(cx).items_len() != 0).then_some(pane)
 4011        };
 4012
 4013        let try_dock =
 4014            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4015
 4016        let target = match (origin, direction) {
 4017            // We're in the center, so we first try to go to a different pane,
 4018            // otherwise try to go to a dock.
 4019            (Origin::Center, direction) => {
 4020                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4021                    Some(Target::Pane(pane))
 4022                } else {
 4023                    match direction {
 4024                        SplitDirection::Up => None,
 4025                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4026                        SplitDirection::Left => try_dock(&self.left_dock),
 4027                        SplitDirection::Right => try_dock(&self.right_dock),
 4028                    }
 4029                }
 4030            }
 4031
 4032            (Origin::LeftDock, SplitDirection::Right) => {
 4033                if let Some(last_active_pane) = get_last_active_pane() {
 4034                    Some(Target::Pane(last_active_pane))
 4035                } else {
 4036                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4037                }
 4038            }
 4039
 4040            (Origin::LeftDock, SplitDirection::Down)
 4041            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4042
 4043            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4044            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4045            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4046
 4047            (Origin::RightDock, SplitDirection::Left) => {
 4048                if let Some(last_active_pane) = get_last_active_pane() {
 4049                    Some(Target::Pane(last_active_pane))
 4050                } else {
 4051                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4052                }
 4053            }
 4054
 4055            _ => None,
 4056        };
 4057
 4058        match target {
 4059            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4060                let pane = pane.read(cx);
 4061                if let Some(item) = pane.active_item() {
 4062                    item.item_focus_handle(cx).focus(window, cx);
 4063                } else {
 4064                    log::error!(
 4065                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4066                    );
 4067                }
 4068            }
 4069            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4070                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4071                window.defer(cx, move |window, cx| {
 4072                    let dock = dock.read(cx);
 4073                    if let Some(panel) = dock.active_panel() {
 4074                        panel.panel_focus_handle(cx).focus(window, cx);
 4075                    } else {
 4076                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4077                    }
 4078                })
 4079            }
 4080            None => {}
 4081        }
 4082    }
 4083
 4084    pub fn move_item_to_pane_in_direction(
 4085        &mut self,
 4086        action: &MoveItemToPaneInDirection,
 4087        window: &mut Window,
 4088        cx: &mut Context<Self>,
 4089    ) {
 4090        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4091            Some(destination) => destination,
 4092            None => {
 4093                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4094                    return;
 4095                }
 4096                let new_pane = self.add_pane(window, cx);
 4097                if self
 4098                    .center
 4099                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4100                    .log_err()
 4101                    .is_none()
 4102                {
 4103                    return;
 4104                };
 4105                new_pane
 4106            }
 4107        };
 4108
 4109        if action.clone {
 4110            if self
 4111                .active_pane
 4112                .read(cx)
 4113                .active_item()
 4114                .is_some_and(|item| item.can_split(cx))
 4115            {
 4116                clone_active_item(
 4117                    self.database_id(),
 4118                    &self.active_pane,
 4119                    &destination,
 4120                    action.focus,
 4121                    window,
 4122                    cx,
 4123                );
 4124                return;
 4125            }
 4126        }
 4127        move_active_item(
 4128            &self.active_pane,
 4129            &destination,
 4130            action.focus,
 4131            true,
 4132            window,
 4133            cx,
 4134        );
 4135    }
 4136
 4137    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4138        self.center.bounding_box_for_pane(pane)
 4139    }
 4140
 4141    pub fn find_pane_in_direction(
 4142        &mut self,
 4143        direction: SplitDirection,
 4144        cx: &App,
 4145    ) -> Option<Entity<Pane>> {
 4146        self.center
 4147            .find_pane_in_direction(&self.active_pane, direction, cx)
 4148            .cloned()
 4149    }
 4150
 4151    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4152        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4153            self.center.swap(&self.active_pane, &to, cx);
 4154            cx.notify();
 4155        }
 4156    }
 4157
 4158    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4159        if self
 4160            .center
 4161            .move_to_border(&self.active_pane, direction, cx)
 4162            .unwrap()
 4163        {
 4164            cx.notify();
 4165        }
 4166    }
 4167
 4168    pub fn resize_pane(
 4169        &mut self,
 4170        axis: gpui::Axis,
 4171        amount: Pixels,
 4172        window: &mut Window,
 4173        cx: &mut Context<Self>,
 4174    ) {
 4175        let docks = self.all_docks();
 4176        let active_dock = docks
 4177            .into_iter()
 4178            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4179
 4180        if let Some(dock) = active_dock {
 4181            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4182                return;
 4183            };
 4184            match dock.read(cx).position() {
 4185                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4186                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4187                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4188            }
 4189        } else {
 4190            self.center
 4191                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4192        }
 4193        cx.notify();
 4194    }
 4195
 4196    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4197        self.center.reset_pane_sizes(cx);
 4198        cx.notify();
 4199    }
 4200
 4201    fn handle_pane_focused(
 4202        &mut self,
 4203        pane: Entity<Pane>,
 4204        window: &mut Window,
 4205        cx: &mut Context<Self>,
 4206    ) {
 4207        // This is explicitly hoisted out of the following check for pane identity as
 4208        // terminal panel panes are not registered as a center panes.
 4209        self.status_bar.update(cx, |status_bar, cx| {
 4210            status_bar.set_active_pane(&pane, window, cx);
 4211        });
 4212        if self.active_pane != pane {
 4213            self.set_active_pane(&pane, window, cx);
 4214        }
 4215
 4216        if self.last_active_center_pane.is_none() {
 4217            self.last_active_center_pane = Some(pane.downgrade());
 4218        }
 4219
 4220        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4221        if pane.read(cx).is_zoomed() {
 4222            self.zoomed = Some(pane.downgrade().into());
 4223        } else {
 4224            self.zoomed = None;
 4225        }
 4226        self.zoomed_position = None;
 4227        cx.emit(Event::ZoomChanged);
 4228        self.update_active_view_for_followers(window, cx);
 4229        pane.update(cx, |pane, _| {
 4230            pane.track_alternate_file_items();
 4231        });
 4232
 4233        cx.notify();
 4234    }
 4235
 4236    fn set_active_pane(
 4237        &mut self,
 4238        pane: &Entity<Pane>,
 4239        window: &mut Window,
 4240        cx: &mut Context<Self>,
 4241    ) {
 4242        self.active_pane = pane.clone();
 4243        self.active_item_path_changed(true, window, cx);
 4244        self.last_active_center_pane = Some(pane.downgrade());
 4245    }
 4246
 4247    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4248        self.update_active_view_for_followers(window, cx);
 4249    }
 4250
 4251    fn handle_pane_event(
 4252        &mut self,
 4253        pane: &Entity<Pane>,
 4254        event: &pane::Event,
 4255        window: &mut Window,
 4256        cx: &mut Context<Self>,
 4257    ) {
 4258        let mut serialize_workspace = true;
 4259        match event {
 4260            pane::Event::AddItem { item } => {
 4261                item.added_to_pane(self, pane.clone(), window, cx);
 4262                cx.emit(Event::ItemAdded {
 4263                    item: item.boxed_clone(),
 4264                });
 4265            }
 4266            pane::Event::Split {
 4267                direction,
 4268                clone_active_item,
 4269            } => {
 4270                if *clone_active_item {
 4271                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4272                        .detach();
 4273                } else {
 4274                    self.split_and_move(pane.clone(), *direction, window, cx);
 4275                }
 4276            }
 4277            pane::Event::JoinIntoNext => {
 4278                self.join_pane_into_next(pane.clone(), window, cx);
 4279            }
 4280            pane::Event::JoinAll => {
 4281                self.join_all_panes(window, cx);
 4282            }
 4283            pane::Event::Remove { focus_on_pane } => {
 4284                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4285            }
 4286            pane::Event::ActivateItem {
 4287                local,
 4288                focus_changed,
 4289            } => {
 4290                window.invalidate_character_coordinates();
 4291
 4292                pane.update(cx, |pane, _| {
 4293                    pane.track_alternate_file_items();
 4294                });
 4295                if *local {
 4296                    self.unfollow_in_pane(pane, window, cx);
 4297                }
 4298                serialize_workspace = *focus_changed || pane != self.active_pane();
 4299                if pane == self.active_pane() {
 4300                    self.active_item_path_changed(*focus_changed, window, cx);
 4301                    self.update_active_view_for_followers(window, cx);
 4302                } else if *local {
 4303                    self.set_active_pane(pane, window, cx);
 4304                }
 4305            }
 4306            pane::Event::UserSavedItem { item, save_intent } => {
 4307                cx.emit(Event::UserSavedItem {
 4308                    pane: pane.downgrade(),
 4309                    item: item.boxed_clone(),
 4310                    save_intent: *save_intent,
 4311                });
 4312                serialize_workspace = false;
 4313            }
 4314            pane::Event::ChangeItemTitle => {
 4315                if *pane == self.active_pane {
 4316                    self.active_item_path_changed(false, window, cx);
 4317                }
 4318                serialize_workspace = false;
 4319            }
 4320            pane::Event::RemovedItem { item } => {
 4321                cx.emit(Event::ActiveItemChanged);
 4322                self.update_window_edited(window, cx);
 4323                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4324                    && entry.get().entity_id() == pane.entity_id()
 4325                {
 4326                    entry.remove();
 4327                }
 4328                cx.emit(Event::ItemRemoved {
 4329                    item_id: item.item_id(),
 4330                });
 4331            }
 4332            pane::Event::Focus => {
 4333                window.invalidate_character_coordinates();
 4334                self.handle_pane_focused(pane.clone(), window, cx);
 4335            }
 4336            pane::Event::ZoomIn => {
 4337                if *pane == self.active_pane {
 4338                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4339                    if pane.read(cx).has_focus(window, cx) {
 4340                        self.zoomed = Some(pane.downgrade().into());
 4341                        self.zoomed_position = None;
 4342                        cx.emit(Event::ZoomChanged);
 4343                    }
 4344                    cx.notify();
 4345                }
 4346            }
 4347            pane::Event::ZoomOut => {
 4348                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4349                if self.zoomed_position.is_none() {
 4350                    self.zoomed = None;
 4351                    cx.emit(Event::ZoomChanged);
 4352                }
 4353                cx.notify();
 4354            }
 4355            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4356        }
 4357
 4358        if serialize_workspace {
 4359            self.serialize_workspace(window, cx);
 4360        }
 4361    }
 4362
 4363    pub fn unfollow_in_pane(
 4364        &mut self,
 4365        pane: &Entity<Pane>,
 4366        window: &mut Window,
 4367        cx: &mut Context<Workspace>,
 4368    ) -> Option<CollaboratorId> {
 4369        let leader_id = self.leader_for_pane(pane)?;
 4370        self.unfollow(leader_id, window, cx);
 4371        Some(leader_id)
 4372    }
 4373
 4374    pub fn split_pane(
 4375        &mut self,
 4376        pane_to_split: Entity<Pane>,
 4377        split_direction: SplitDirection,
 4378        window: &mut Window,
 4379        cx: &mut Context<Self>,
 4380    ) -> Entity<Pane> {
 4381        let new_pane = self.add_pane(window, cx);
 4382        self.center
 4383            .split(&pane_to_split, &new_pane, split_direction, cx)
 4384            .unwrap();
 4385        cx.notify();
 4386        new_pane
 4387    }
 4388
 4389    pub fn split_and_move(
 4390        &mut self,
 4391        pane: Entity<Pane>,
 4392        direction: SplitDirection,
 4393        window: &mut Window,
 4394        cx: &mut Context<Self>,
 4395    ) {
 4396        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4397            return;
 4398        };
 4399        let new_pane = self.add_pane(window, cx);
 4400        new_pane.update(cx, |pane, cx| {
 4401            pane.add_item(item, true, true, None, window, cx)
 4402        });
 4403        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4404        cx.notify();
 4405    }
 4406
 4407    pub fn split_and_clone(
 4408        &mut self,
 4409        pane: Entity<Pane>,
 4410        direction: SplitDirection,
 4411        window: &mut Window,
 4412        cx: &mut Context<Self>,
 4413    ) -> Task<Option<Entity<Pane>>> {
 4414        let Some(item) = pane.read(cx).active_item() else {
 4415            return Task::ready(None);
 4416        };
 4417        if !item.can_split(cx) {
 4418            return Task::ready(None);
 4419        }
 4420        let task = item.clone_on_split(self.database_id(), window, cx);
 4421        cx.spawn_in(window, async move |this, cx| {
 4422            if let Some(clone) = task.await {
 4423                this.update_in(cx, |this, window, cx| {
 4424                    let new_pane = this.add_pane(window, cx);
 4425                    new_pane.update(cx, |pane, cx| {
 4426                        pane.add_item(clone, true, true, None, window, cx)
 4427                    });
 4428                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4429                    cx.notify();
 4430                    new_pane
 4431                })
 4432                .ok()
 4433            } else {
 4434                None
 4435            }
 4436        })
 4437    }
 4438
 4439    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4440        let active_item = self.active_pane.read(cx).active_item();
 4441        for pane in &self.panes {
 4442            join_pane_into_active(&self.active_pane, pane, window, cx);
 4443        }
 4444        if let Some(active_item) = active_item {
 4445            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4446        }
 4447        cx.notify();
 4448    }
 4449
 4450    pub fn join_pane_into_next(
 4451        &mut self,
 4452        pane: Entity<Pane>,
 4453        window: &mut Window,
 4454        cx: &mut Context<Self>,
 4455    ) {
 4456        let next_pane = self
 4457            .find_pane_in_direction(SplitDirection::Right, cx)
 4458            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4459            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4460            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4461        let Some(next_pane) = next_pane else {
 4462            return;
 4463        };
 4464        move_all_items(&pane, &next_pane, window, cx);
 4465        cx.notify();
 4466    }
 4467
 4468    fn remove_pane(
 4469        &mut self,
 4470        pane: Entity<Pane>,
 4471        focus_on: Option<Entity<Pane>>,
 4472        window: &mut Window,
 4473        cx: &mut Context<Self>,
 4474    ) {
 4475        if self.center.remove(&pane, cx).unwrap() {
 4476            self.force_remove_pane(&pane, &focus_on, window, cx);
 4477            self.unfollow_in_pane(&pane, window, cx);
 4478            self.last_leaders_by_pane.remove(&pane.downgrade());
 4479            for removed_item in pane.read(cx).items() {
 4480                self.panes_by_item.remove(&removed_item.item_id());
 4481            }
 4482
 4483            cx.notify();
 4484        } else {
 4485            self.active_item_path_changed(true, window, cx);
 4486        }
 4487        cx.emit(Event::PaneRemoved);
 4488    }
 4489
 4490    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4491        &mut self.panes
 4492    }
 4493
 4494    pub fn panes(&self) -> &[Entity<Pane>] {
 4495        &self.panes
 4496    }
 4497
 4498    pub fn active_pane(&self) -> &Entity<Pane> {
 4499        &self.active_pane
 4500    }
 4501
 4502    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4503        for dock in self.all_docks() {
 4504            if dock.focus_handle(cx).contains_focused(window, cx)
 4505                && let Some(pane) = dock
 4506                    .read(cx)
 4507                    .active_panel()
 4508                    .and_then(|panel| panel.pane(cx))
 4509            {
 4510                return pane;
 4511            }
 4512        }
 4513        self.active_pane().clone()
 4514    }
 4515
 4516    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4517        self.find_pane_in_direction(SplitDirection::Right, cx)
 4518            .unwrap_or_else(|| {
 4519                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4520            })
 4521    }
 4522
 4523    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4524        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4525        weak_pane.upgrade()
 4526    }
 4527
 4528    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4529        self.follower_states.retain(|leader_id, state| {
 4530            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4531                for item in state.items_by_leader_view_id.values() {
 4532                    item.view.set_leader_id(None, window, cx);
 4533                }
 4534                false
 4535            } else {
 4536                true
 4537            }
 4538        });
 4539        cx.notify();
 4540    }
 4541
 4542    pub fn start_following(
 4543        &mut self,
 4544        leader_id: impl Into<CollaboratorId>,
 4545        window: &mut Window,
 4546        cx: &mut Context<Self>,
 4547    ) -> Option<Task<Result<()>>> {
 4548        let leader_id = leader_id.into();
 4549        let pane = self.active_pane().clone();
 4550
 4551        self.last_leaders_by_pane
 4552            .insert(pane.downgrade(), leader_id);
 4553        self.unfollow(leader_id, window, cx);
 4554        self.unfollow_in_pane(&pane, window, cx);
 4555        self.follower_states.insert(
 4556            leader_id,
 4557            FollowerState {
 4558                center_pane: pane.clone(),
 4559                dock_pane: None,
 4560                active_view_id: None,
 4561                items_by_leader_view_id: Default::default(),
 4562            },
 4563        );
 4564        cx.notify();
 4565
 4566        match leader_id {
 4567            CollaboratorId::PeerId(leader_peer_id) => {
 4568                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4569                let project_id = self.project.read(cx).remote_id();
 4570                let request = self.app_state.client.request(proto::Follow {
 4571                    room_id,
 4572                    project_id,
 4573                    leader_id: Some(leader_peer_id),
 4574                });
 4575
 4576                Some(cx.spawn_in(window, async move |this, cx| {
 4577                    let response = request.await?;
 4578                    this.update(cx, |this, _| {
 4579                        let state = this
 4580                            .follower_states
 4581                            .get_mut(&leader_id)
 4582                            .context("following interrupted")?;
 4583                        state.active_view_id = response
 4584                            .active_view
 4585                            .as_ref()
 4586                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4587                        anyhow::Ok(())
 4588                    })??;
 4589                    if let Some(view) = response.active_view {
 4590                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4591                    }
 4592                    this.update_in(cx, |this, window, cx| {
 4593                        this.leader_updated(leader_id, window, cx)
 4594                    })?;
 4595                    Ok(())
 4596                }))
 4597            }
 4598            CollaboratorId::Agent => {
 4599                self.leader_updated(leader_id, window, cx)?;
 4600                Some(Task::ready(Ok(())))
 4601            }
 4602        }
 4603    }
 4604
 4605    pub fn follow_next_collaborator(
 4606        &mut self,
 4607        _: &FollowNextCollaborator,
 4608        window: &mut Window,
 4609        cx: &mut Context<Self>,
 4610    ) {
 4611        let collaborators = self.project.read(cx).collaborators();
 4612        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4613            let mut collaborators = collaborators.keys().copied();
 4614            for peer_id in collaborators.by_ref() {
 4615                if CollaboratorId::PeerId(peer_id) == leader_id {
 4616                    break;
 4617                }
 4618            }
 4619            collaborators.next().map(CollaboratorId::PeerId)
 4620        } else if let Some(last_leader_id) =
 4621            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4622        {
 4623            match last_leader_id {
 4624                CollaboratorId::PeerId(peer_id) => {
 4625                    if collaborators.contains_key(peer_id) {
 4626                        Some(*last_leader_id)
 4627                    } else {
 4628                        None
 4629                    }
 4630                }
 4631                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4632            }
 4633        } else {
 4634            None
 4635        };
 4636
 4637        let pane = self.active_pane.clone();
 4638        let Some(leader_id) = next_leader_id.or_else(|| {
 4639            Some(CollaboratorId::PeerId(
 4640                collaborators.keys().copied().next()?,
 4641            ))
 4642        }) else {
 4643            return;
 4644        };
 4645        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4646            return;
 4647        }
 4648        if let Some(task) = self.start_following(leader_id, window, cx) {
 4649            task.detach_and_log_err(cx)
 4650        }
 4651    }
 4652
 4653    pub fn follow(
 4654        &mut self,
 4655        leader_id: impl Into<CollaboratorId>,
 4656        window: &mut Window,
 4657        cx: &mut Context<Self>,
 4658    ) {
 4659        let leader_id = leader_id.into();
 4660
 4661        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4662            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4663                return;
 4664            };
 4665            let room = room.read(cx);
 4666            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4667                return;
 4668            };
 4669
 4670            let project = self.project.read(cx);
 4671
 4672            let other_project_id = match remote_participant.location {
 4673                call::ParticipantLocation::External => None,
 4674                call::ParticipantLocation::UnsharedProject => None,
 4675                call::ParticipantLocation::SharedProject { project_id } => {
 4676                    if Some(project_id) == project.remote_id() {
 4677                        None
 4678                    } else {
 4679                        Some(project_id)
 4680                    }
 4681                }
 4682            };
 4683
 4684            // if they are active in another project, follow there.
 4685            if let Some(project_id) = other_project_id {
 4686                let app_state = self.app_state.clone();
 4687                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4688                    .detach_and_log_err(cx);
 4689            }
 4690        }
 4691
 4692        // if you're already following, find the right pane and focus it.
 4693        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4694            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4695
 4696            return;
 4697        }
 4698
 4699        // Otherwise, follow.
 4700        if let Some(task) = self.start_following(leader_id, window, cx) {
 4701            task.detach_and_log_err(cx)
 4702        }
 4703    }
 4704
 4705    pub fn unfollow(
 4706        &mut self,
 4707        leader_id: impl Into<CollaboratorId>,
 4708        window: &mut Window,
 4709        cx: &mut Context<Self>,
 4710    ) -> Option<()> {
 4711        cx.notify();
 4712
 4713        let leader_id = leader_id.into();
 4714        let state = self.follower_states.remove(&leader_id)?;
 4715        for (_, item) in state.items_by_leader_view_id {
 4716            item.view.set_leader_id(None, window, cx);
 4717        }
 4718
 4719        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4720            let project_id = self.project.read(cx).remote_id();
 4721            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4722            self.app_state
 4723                .client
 4724                .send(proto::Unfollow {
 4725                    room_id,
 4726                    project_id,
 4727                    leader_id: Some(leader_peer_id),
 4728                })
 4729                .log_err();
 4730        }
 4731
 4732        Some(())
 4733    }
 4734
 4735    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4736        self.follower_states.contains_key(&id.into())
 4737    }
 4738
 4739    fn active_item_path_changed(
 4740        &mut self,
 4741        focus_changed: bool,
 4742        window: &mut Window,
 4743        cx: &mut Context<Self>,
 4744    ) {
 4745        cx.emit(Event::ActiveItemChanged);
 4746        let active_entry = self.active_project_path(cx);
 4747        self.project.update(cx, |project, cx| {
 4748            project.set_active_path(active_entry.clone(), cx)
 4749        });
 4750
 4751        if focus_changed && let Some(project_path) = &active_entry {
 4752            let git_store_entity = self.project.read(cx).git_store().clone();
 4753            git_store_entity.update(cx, |git_store, cx| {
 4754                git_store.set_active_repo_for_path(project_path, cx);
 4755            });
 4756        }
 4757
 4758        self.update_window_title(window, cx);
 4759    }
 4760
 4761    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4762        let project = self.project().read(cx);
 4763        let mut title = String::new();
 4764
 4765        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4766            let name = {
 4767                let settings_location = SettingsLocation {
 4768                    worktree_id: worktree.read(cx).id(),
 4769                    path: RelPath::empty(),
 4770                };
 4771
 4772                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4773                match &settings.project_name {
 4774                    Some(name) => name.as_str(),
 4775                    None => worktree.read(cx).root_name_str(),
 4776                }
 4777            };
 4778            if i > 0 {
 4779                title.push_str(", ");
 4780            }
 4781            title.push_str(name);
 4782        }
 4783
 4784        if title.is_empty() {
 4785            title = "empty project".to_string();
 4786        }
 4787
 4788        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4789            let filename = path.path.file_name().or_else(|| {
 4790                Some(
 4791                    project
 4792                        .worktree_for_id(path.worktree_id, cx)?
 4793                        .read(cx)
 4794                        .root_name_str(),
 4795                )
 4796            });
 4797
 4798            if let Some(filename) = filename {
 4799                title.push_str("");
 4800                title.push_str(filename.as_ref());
 4801            }
 4802        }
 4803
 4804        if project.is_via_collab() {
 4805            title.push_str("");
 4806        } else if project.is_shared() {
 4807            title.push_str("");
 4808        }
 4809
 4810        if let Some(last_title) = self.last_window_title.as_ref()
 4811            && &title == last_title
 4812        {
 4813            return;
 4814        }
 4815        window.set_window_title(&title);
 4816        SystemWindowTabController::update_tab_title(
 4817            cx,
 4818            window.window_handle().window_id(),
 4819            SharedString::from(&title),
 4820        );
 4821        self.last_window_title = Some(title);
 4822    }
 4823
 4824    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4825        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4826        if is_edited != self.window_edited {
 4827            self.window_edited = is_edited;
 4828            window.set_window_edited(self.window_edited)
 4829        }
 4830    }
 4831
 4832    fn update_item_dirty_state(
 4833        &mut self,
 4834        item: &dyn ItemHandle,
 4835        window: &mut Window,
 4836        cx: &mut App,
 4837    ) {
 4838        let is_dirty = item.is_dirty(cx);
 4839        let item_id = item.item_id();
 4840        let was_dirty = self.dirty_items.contains_key(&item_id);
 4841        if is_dirty == was_dirty {
 4842            return;
 4843        }
 4844        if was_dirty {
 4845            self.dirty_items.remove(&item_id);
 4846            self.update_window_edited(window, cx);
 4847            return;
 4848        }
 4849        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4850            let s = item.on_release(
 4851                cx,
 4852                Box::new(move |cx| {
 4853                    window_handle
 4854                        .update(cx, |this, window, cx| {
 4855                            this.dirty_items.remove(&item_id);
 4856                            this.update_window_edited(window, cx)
 4857                        })
 4858                        .ok();
 4859                }),
 4860            );
 4861            self.dirty_items.insert(item_id, s);
 4862            self.update_window_edited(window, cx);
 4863        }
 4864    }
 4865
 4866    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4867        if self.notifications.is_empty() {
 4868            None
 4869        } else {
 4870            Some(
 4871                div()
 4872                    .absolute()
 4873                    .right_3()
 4874                    .bottom_3()
 4875                    .w_112()
 4876                    .h_full()
 4877                    .flex()
 4878                    .flex_col()
 4879                    .justify_end()
 4880                    .gap_2()
 4881                    .children(
 4882                        self.notifications
 4883                            .iter()
 4884                            .map(|(_, notification)| notification.clone().into_any()),
 4885                    ),
 4886            )
 4887        }
 4888    }
 4889
 4890    // RPC handlers
 4891
 4892    fn active_view_for_follower(
 4893        &self,
 4894        follower_project_id: Option<u64>,
 4895        window: &mut Window,
 4896        cx: &mut Context<Self>,
 4897    ) -> Option<proto::View> {
 4898        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4899        let item = item?;
 4900        let leader_id = self
 4901            .pane_for(&*item)
 4902            .and_then(|pane| self.leader_for_pane(&pane));
 4903        let leader_peer_id = match leader_id {
 4904            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4905            Some(CollaboratorId::Agent) | None => None,
 4906        };
 4907
 4908        let item_handle = item.to_followable_item_handle(cx)?;
 4909        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4910        let variant = item_handle.to_state_proto(window, cx)?;
 4911
 4912        if item_handle.is_project_item(window, cx)
 4913            && (follower_project_id.is_none()
 4914                || follower_project_id != self.project.read(cx).remote_id())
 4915        {
 4916            return None;
 4917        }
 4918
 4919        Some(proto::View {
 4920            id: id.to_proto(),
 4921            leader_id: leader_peer_id,
 4922            variant: Some(variant),
 4923            panel_id: panel_id.map(|id| id as i32),
 4924        })
 4925    }
 4926
 4927    fn handle_follow(
 4928        &mut self,
 4929        follower_project_id: Option<u64>,
 4930        window: &mut Window,
 4931        cx: &mut Context<Self>,
 4932    ) -> proto::FollowResponse {
 4933        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4934
 4935        cx.notify();
 4936        proto::FollowResponse {
 4937            // TODO: Remove after version 0.145.x stabilizes.
 4938            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4939            views: active_view.iter().cloned().collect(),
 4940            active_view,
 4941        }
 4942    }
 4943
 4944    fn handle_update_followers(
 4945        &mut self,
 4946        leader_id: PeerId,
 4947        message: proto::UpdateFollowers,
 4948        _window: &mut Window,
 4949        _cx: &mut Context<Self>,
 4950    ) {
 4951        self.leader_updates_tx
 4952            .unbounded_send((leader_id, message))
 4953            .ok();
 4954    }
 4955
 4956    async fn process_leader_update(
 4957        this: &WeakEntity<Self>,
 4958        leader_id: PeerId,
 4959        update: proto::UpdateFollowers,
 4960        cx: &mut AsyncWindowContext,
 4961    ) -> Result<()> {
 4962        match update.variant.context("invalid update")? {
 4963            proto::update_followers::Variant::CreateView(view) => {
 4964                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4965                let should_add_view = this.update(cx, |this, _| {
 4966                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4967                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4968                    } else {
 4969                        anyhow::Ok(false)
 4970                    }
 4971                })??;
 4972
 4973                if should_add_view {
 4974                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4975                }
 4976            }
 4977            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4978                let should_add_view = this.update(cx, |this, _| {
 4979                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4980                        state.active_view_id = update_active_view
 4981                            .view
 4982                            .as_ref()
 4983                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4984
 4985                        if state.active_view_id.is_some_and(|view_id| {
 4986                            !state.items_by_leader_view_id.contains_key(&view_id)
 4987                        }) {
 4988                            anyhow::Ok(true)
 4989                        } else {
 4990                            anyhow::Ok(false)
 4991                        }
 4992                    } else {
 4993                        anyhow::Ok(false)
 4994                    }
 4995                })??;
 4996
 4997                if should_add_view && let Some(view) = update_active_view.view {
 4998                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4999                }
 5000            }
 5001            proto::update_followers::Variant::UpdateView(update_view) => {
 5002                let variant = update_view.variant.context("missing update view variant")?;
 5003                let id = update_view.id.context("missing update view id")?;
 5004                let mut tasks = Vec::new();
 5005                this.update_in(cx, |this, window, cx| {
 5006                    let project = this.project.clone();
 5007                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5008                        let view_id = ViewId::from_proto(id.clone())?;
 5009                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5010                            tasks.push(item.view.apply_update_proto(
 5011                                &project,
 5012                                variant.clone(),
 5013                                window,
 5014                                cx,
 5015                            ));
 5016                        }
 5017                    }
 5018                    anyhow::Ok(())
 5019                })??;
 5020                try_join_all(tasks).await.log_err();
 5021            }
 5022        }
 5023        this.update_in(cx, |this, window, cx| {
 5024            this.leader_updated(leader_id, window, cx)
 5025        })?;
 5026        Ok(())
 5027    }
 5028
 5029    async fn add_view_from_leader(
 5030        this: WeakEntity<Self>,
 5031        leader_id: PeerId,
 5032        view: &proto::View,
 5033        cx: &mut AsyncWindowContext,
 5034    ) -> Result<()> {
 5035        let this = this.upgrade().context("workspace dropped")?;
 5036
 5037        let Some(id) = view.id.clone() else {
 5038            anyhow::bail!("no id for view");
 5039        };
 5040        let id = ViewId::from_proto(id)?;
 5041        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5042
 5043        let pane = this.update(cx, |this, _cx| {
 5044            let state = this
 5045                .follower_states
 5046                .get(&leader_id.into())
 5047                .context("stopped following")?;
 5048            anyhow::Ok(state.pane().clone())
 5049        })??;
 5050        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5051            let client = this.read(cx).client().clone();
 5052            pane.items().find_map(|item| {
 5053                let item = item.to_followable_item_handle(cx)?;
 5054                if item.remote_id(&client, window, cx) == Some(id) {
 5055                    Some(item)
 5056                } else {
 5057                    None
 5058                }
 5059            })
 5060        })?;
 5061        let item = if let Some(existing_item) = existing_item {
 5062            existing_item
 5063        } else {
 5064            let variant = view.variant.clone();
 5065            anyhow::ensure!(variant.is_some(), "missing view variant");
 5066
 5067            let task = cx.update(|window, cx| {
 5068                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5069            })?;
 5070
 5071            let Some(task) = task else {
 5072                anyhow::bail!(
 5073                    "failed to construct view from leader (maybe from a different version of zed?)"
 5074                );
 5075            };
 5076
 5077            let mut new_item = task.await?;
 5078            pane.update_in(cx, |pane, window, cx| {
 5079                let mut item_to_remove = None;
 5080                for (ix, item) in pane.items().enumerate() {
 5081                    if let Some(item) = item.to_followable_item_handle(cx) {
 5082                        match new_item.dedup(item.as_ref(), window, cx) {
 5083                            Some(item::Dedup::KeepExisting) => {
 5084                                new_item =
 5085                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5086                                break;
 5087                            }
 5088                            Some(item::Dedup::ReplaceExisting) => {
 5089                                item_to_remove = Some((ix, item.item_id()));
 5090                                break;
 5091                            }
 5092                            None => {}
 5093                        }
 5094                    }
 5095                }
 5096
 5097                if let Some((ix, id)) = item_to_remove {
 5098                    pane.remove_item(id, false, false, window, cx);
 5099                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5100                }
 5101            })?;
 5102
 5103            new_item
 5104        };
 5105
 5106        this.update_in(cx, |this, window, cx| {
 5107            let state = this.follower_states.get_mut(&leader_id.into())?;
 5108            item.set_leader_id(Some(leader_id.into()), window, cx);
 5109            state.items_by_leader_view_id.insert(
 5110                id,
 5111                FollowerView {
 5112                    view: item,
 5113                    location: panel_id,
 5114                },
 5115            );
 5116
 5117            Some(())
 5118        })?;
 5119
 5120        Ok(())
 5121    }
 5122
 5123    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5124        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5125            return;
 5126        };
 5127
 5128        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5129            let buffer_entity_id = agent_location.buffer.entity_id();
 5130            let view_id = ViewId {
 5131                creator: CollaboratorId::Agent,
 5132                id: buffer_entity_id.as_u64(),
 5133            };
 5134            follower_state.active_view_id = Some(view_id);
 5135
 5136            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5137                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5138                hash_map::Entry::Vacant(entry) => {
 5139                    let existing_view =
 5140                        follower_state
 5141                            .center_pane
 5142                            .read(cx)
 5143                            .items()
 5144                            .find_map(|item| {
 5145                                let item = item.to_followable_item_handle(cx)?;
 5146                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5147                                    && item.project_item_model_ids(cx).as_slice()
 5148                                        == [buffer_entity_id]
 5149                                {
 5150                                    Some(item)
 5151                                } else {
 5152                                    None
 5153                                }
 5154                            });
 5155                    let view = existing_view.or_else(|| {
 5156                        agent_location.buffer.upgrade().and_then(|buffer| {
 5157                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5158                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5159                            })?
 5160                            .to_followable_item_handle(cx)
 5161                        })
 5162                    });
 5163
 5164                    view.map(|view| {
 5165                        entry.insert(FollowerView {
 5166                            view,
 5167                            location: None,
 5168                        })
 5169                    })
 5170                }
 5171            };
 5172
 5173            if let Some(item) = item {
 5174                item.view
 5175                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5176                item.view
 5177                    .update_agent_location(agent_location.position, window, cx);
 5178            }
 5179        } else {
 5180            follower_state.active_view_id = None;
 5181        }
 5182
 5183        self.leader_updated(CollaboratorId::Agent, window, cx);
 5184    }
 5185
 5186    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5187        let mut is_project_item = true;
 5188        let mut update = proto::UpdateActiveView::default();
 5189        if window.is_window_active() {
 5190            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5191
 5192            if let Some(item) = active_item
 5193                && item.item_focus_handle(cx).contains_focused(window, cx)
 5194            {
 5195                let leader_id = self
 5196                    .pane_for(&*item)
 5197                    .and_then(|pane| self.leader_for_pane(&pane));
 5198                let leader_peer_id = match leader_id {
 5199                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5200                    Some(CollaboratorId::Agent) | None => None,
 5201                };
 5202
 5203                if let Some(item) = item.to_followable_item_handle(cx) {
 5204                    let id = item
 5205                        .remote_id(&self.app_state.client, window, cx)
 5206                        .map(|id| id.to_proto());
 5207
 5208                    if let Some(id) = id
 5209                        && let Some(variant) = item.to_state_proto(window, cx)
 5210                    {
 5211                        let view = Some(proto::View {
 5212                            id: id.clone(),
 5213                            leader_id: leader_peer_id,
 5214                            variant: Some(variant),
 5215                            panel_id: panel_id.map(|id| id as i32),
 5216                        });
 5217
 5218                        is_project_item = item.is_project_item(window, cx);
 5219                        update = proto::UpdateActiveView {
 5220                            view,
 5221                            // TODO: Remove after version 0.145.x stabilizes.
 5222                            id,
 5223                            leader_id: leader_peer_id,
 5224                        };
 5225                    };
 5226                }
 5227            }
 5228        }
 5229
 5230        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5231        if active_view_id != self.last_active_view_id.as_ref() {
 5232            self.last_active_view_id = active_view_id.cloned();
 5233            self.update_followers(
 5234                is_project_item,
 5235                proto::update_followers::Variant::UpdateActiveView(update),
 5236                window,
 5237                cx,
 5238            );
 5239        }
 5240    }
 5241
 5242    fn active_item_for_followers(
 5243        &self,
 5244        window: &mut Window,
 5245        cx: &mut App,
 5246    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5247        let mut active_item = None;
 5248        let mut panel_id = None;
 5249        for dock in self.all_docks() {
 5250            if dock.focus_handle(cx).contains_focused(window, cx)
 5251                && let Some(panel) = dock.read(cx).active_panel()
 5252                && let Some(pane) = panel.pane(cx)
 5253                && let Some(item) = pane.read(cx).active_item()
 5254            {
 5255                active_item = Some(item);
 5256                panel_id = panel.remote_id();
 5257                break;
 5258            }
 5259        }
 5260
 5261        if active_item.is_none() {
 5262            active_item = self.active_pane().read(cx).active_item();
 5263        }
 5264        (active_item, panel_id)
 5265    }
 5266
 5267    fn update_followers(
 5268        &self,
 5269        project_only: bool,
 5270        update: proto::update_followers::Variant,
 5271        _: &mut Window,
 5272        cx: &mut App,
 5273    ) -> Option<()> {
 5274        // If this update only applies to for followers in the current project,
 5275        // then skip it unless this project is shared. If it applies to all
 5276        // followers, regardless of project, then set `project_id` to none,
 5277        // indicating that it goes to all followers.
 5278        let project_id = if project_only {
 5279            Some(self.project.read(cx).remote_id()?)
 5280        } else {
 5281            None
 5282        };
 5283        self.app_state().workspace_store.update(cx, |store, cx| {
 5284            store.update_followers(project_id, update, cx)
 5285        })
 5286    }
 5287
 5288    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5289        self.follower_states.iter().find_map(|(leader_id, state)| {
 5290            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5291                Some(*leader_id)
 5292            } else {
 5293                None
 5294            }
 5295        })
 5296    }
 5297
 5298    fn leader_updated(
 5299        &mut self,
 5300        leader_id: impl Into<CollaboratorId>,
 5301        window: &mut Window,
 5302        cx: &mut Context<Self>,
 5303    ) -> Option<Box<dyn ItemHandle>> {
 5304        cx.notify();
 5305
 5306        let leader_id = leader_id.into();
 5307        let (panel_id, item) = match leader_id {
 5308            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5309            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5310        };
 5311
 5312        let state = self.follower_states.get(&leader_id)?;
 5313        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5314        let pane;
 5315        if let Some(panel_id) = panel_id {
 5316            pane = self
 5317                .activate_panel_for_proto_id(panel_id, window, cx)?
 5318                .pane(cx)?;
 5319            let state = self.follower_states.get_mut(&leader_id)?;
 5320            state.dock_pane = Some(pane.clone());
 5321        } else {
 5322            pane = state.center_pane.clone();
 5323            let state = self.follower_states.get_mut(&leader_id)?;
 5324            if let Some(dock_pane) = state.dock_pane.take() {
 5325                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5326            }
 5327        }
 5328
 5329        pane.update(cx, |pane, cx| {
 5330            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5331            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5332                pane.activate_item(index, false, false, window, cx);
 5333            } else {
 5334                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5335            }
 5336
 5337            if focus_active_item {
 5338                pane.focus_active_item(window, cx)
 5339            }
 5340        });
 5341
 5342        Some(item)
 5343    }
 5344
 5345    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5346        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5347        let active_view_id = state.active_view_id?;
 5348        Some(
 5349            state
 5350                .items_by_leader_view_id
 5351                .get(&active_view_id)?
 5352                .view
 5353                .boxed_clone(),
 5354        )
 5355    }
 5356
 5357    fn active_item_for_peer(
 5358        &self,
 5359        peer_id: PeerId,
 5360        window: &mut Window,
 5361        cx: &mut Context<Self>,
 5362    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5363        let call = self.active_call()?;
 5364        let room = call.read(cx).room()?.read(cx);
 5365        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5366        let leader_in_this_app;
 5367        let leader_in_this_project;
 5368        match participant.location {
 5369            call::ParticipantLocation::SharedProject { project_id } => {
 5370                leader_in_this_app = true;
 5371                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5372            }
 5373            call::ParticipantLocation::UnsharedProject => {
 5374                leader_in_this_app = true;
 5375                leader_in_this_project = false;
 5376            }
 5377            call::ParticipantLocation::External => {
 5378                leader_in_this_app = false;
 5379                leader_in_this_project = false;
 5380            }
 5381        };
 5382        let state = self.follower_states.get(&peer_id.into())?;
 5383        let mut item_to_activate = None;
 5384        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5385            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5386                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5387            {
 5388                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5389            }
 5390        } else if let Some(shared_screen) =
 5391            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5392        {
 5393            item_to_activate = Some((None, Box::new(shared_screen)));
 5394        }
 5395        item_to_activate
 5396    }
 5397
 5398    fn shared_screen_for_peer(
 5399        &self,
 5400        peer_id: PeerId,
 5401        pane: &Entity<Pane>,
 5402        window: &mut Window,
 5403        cx: &mut App,
 5404    ) -> Option<Entity<SharedScreen>> {
 5405        let call = self.active_call()?;
 5406        let room = call.read(cx).room()?.clone();
 5407        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5408        let track = participant.video_tracks.values().next()?.clone();
 5409        let user = participant.user.clone();
 5410
 5411        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5412            if item.read(cx).peer_id == peer_id {
 5413                return Some(item);
 5414            }
 5415        }
 5416
 5417        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5418    }
 5419
 5420    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5421        if window.is_window_active() {
 5422            self.update_active_view_for_followers(window, cx);
 5423
 5424            if let Some(database_id) = self.database_id {
 5425                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5426                    .detach();
 5427            }
 5428        } else {
 5429            for pane in &self.panes {
 5430                pane.update(cx, |pane, cx| {
 5431                    if let Some(item) = pane.active_item() {
 5432                        item.workspace_deactivated(window, cx);
 5433                    }
 5434                    for item in pane.items() {
 5435                        if matches!(
 5436                            item.workspace_settings(cx).autosave,
 5437                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5438                        ) {
 5439                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5440                                .detach_and_log_err(cx);
 5441                        }
 5442                    }
 5443                });
 5444            }
 5445        }
 5446    }
 5447
 5448    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5449        self.active_call.as_ref().map(|(call, _)| call)
 5450    }
 5451
 5452    fn on_active_call_event(
 5453        &mut self,
 5454        _: &Entity<ActiveCall>,
 5455        event: &call::room::Event,
 5456        window: &mut Window,
 5457        cx: &mut Context<Self>,
 5458    ) {
 5459        match event {
 5460            call::room::Event::ParticipantLocationChanged { participant_id }
 5461            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5462                self.leader_updated(participant_id, window, cx);
 5463            }
 5464            _ => {}
 5465        }
 5466    }
 5467
 5468    pub fn database_id(&self) -> Option<WorkspaceId> {
 5469        self.database_id
 5470    }
 5471
 5472    pub fn session_id(&self) -> Option<String> {
 5473        self.session_id.clone()
 5474    }
 5475
 5476    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5477        let project = self.project().read(cx);
 5478        project
 5479            .visible_worktrees(cx)
 5480            .map(|worktree| worktree.read(cx).abs_path())
 5481            .collect::<Vec<_>>()
 5482    }
 5483
 5484    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5485        match member {
 5486            Member::Axis(PaneAxis { members, .. }) => {
 5487                for child in members.iter() {
 5488                    self.remove_panes(child.clone(), window, cx)
 5489                }
 5490            }
 5491            Member::Pane(pane) => {
 5492                self.force_remove_pane(&pane, &None, window, cx);
 5493            }
 5494        }
 5495    }
 5496
 5497    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5498        self.session_id.take();
 5499        self.serialize_workspace_internal(window, cx)
 5500    }
 5501
 5502    fn force_remove_pane(
 5503        &mut self,
 5504        pane: &Entity<Pane>,
 5505        focus_on: &Option<Entity<Pane>>,
 5506        window: &mut Window,
 5507        cx: &mut Context<Workspace>,
 5508    ) {
 5509        self.panes.retain(|p| p != pane);
 5510        if let Some(focus_on) = focus_on {
 5511            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5512        } else if self.active_pane() == pane {
 5513            self.panes
 5514                .last()
 5515                .unwrap()
 5516                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5517        }
 5518        if self.last_active_center_pane == Some(pane.downgrade()) {
 5519            self.last_active_center_pane = None;
 5520        }
 5521        cx.notify();
 5522    }
 5523
 5524    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5525        if self._schedule_serialize_workspace.is_none() {
 5526            self._schedule_serialize_workspace =
 5527                Some(cx.spawn_in(window, async move |this, cx| {
 5528                    cx.background_executor()
 5529                        .timer(SERIALIZATION_THROTTLE_TIME)
 5530                        .await;
 5531                    this.update_in(cx, |this, window, cx| {
 5532                        this.serialize_workspace_internal(window, cx).detach();
 5533                        this._schedule_serialize_workspace.take();
 5534                    })
 5535                    .log_err();
 5536                }));
 5537        }
 5538    }
 5539
 5540    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5541        let Some(database_id) = self.database_id() else {
 5542            return Task::ready(());
 5543        };
 5544
 5545        fn serialize_pane_handle(
 5546            pane_handle: &Entity<Pane>,
 5547            window: &mut Window,
 5548            cx: &mut App,
 5549        ) -> SerializedPane {
 5550            let (items, active, pinned_count) = {
 5551                let pane = pane_handle.read(cx);
 5552                let active_item_id = pane.active_item().map(|item| item.item_id());
 5553                (
 5554                    pane.items()
 5555                        .filter_map(|handle| {
 5556                            let handle = handle.to_serializable_item_handle(cx)?;
 5557
 5558                            Some(SerializedItem {
 5559                                kind: Arc::from(handle.serialized_item_kind()),
 5560                                item_id: handle.item_id().as_u64(),
 5561                                active: Some(handle.item_id()) == active_item_id,
 5562                                preview: pane.is_active_preview_item(handle.item_id()),
 5563                            })
 5564                        })
 5565                        .collect::<Vec<_>>(),
 5566                    pane.has_focus(window, cx),
 5567                    pane.pinned_count(),
 5568                )
 5569            };
 5570
 5571            SerializedPane::new(items, active, pinned_count)
 5572        }
 5573
 5574        fn build_serialized_pane_group(
 5575            pane_group: &Member,
 5576            window: &mut Window,
 5577            cx: &mut App,
 5578        ) -> SerializedPaneGroup {
 5579            match pane_group {
 5580                Member::Axis(PaneAxis {
 5581                    axis,
 5582                    members,
 5583                    flexes,
 5584                    bounding_boxes: _,
 5585                }) => SerializedPaneGroup::Group {
 5586                    axis: SerializedAxis(*axis),
 5587                    children: members
 5588                        .iter()
 5589                        .map(|member| build_serialized_pane_group(member, window, cx))
 5590                        .collect::<Vec<_>>(),
 5591                    flexes: Some(flexes.lock().clone()),
 5592                },
 5593                Member::Pane(pane_handle) => {
 5594                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5595                }
 5596            }
 5597        }
 5598
 5599        fn build_serialized_docks(
 5600            this: &Workspace,
 5601            window: &mut Window,
 5602            cx: &mut App,
 5603        ) -> DockStructure {
 5604            let left_dock = this.left_dock.read(cx);
 5605            let left_visible = left_dock.is_open();
 5606            let left_active_panel = left_dock
 5607                .active_panel()
 5608                .map(|panel| panel.persistent_name().to_string());
 5609            let left_dock_zoom = left_dock
 5610                .active_panel()
 5611                .map(|panel| panel.is_zoomed(window, cx))
 5612                .unwrap_or(false);
 5613
 5614            let right_dock = this.right_dock.read(cx);
 5615            let right_visible = right_dock.is_open();
 5616            let right_active_panel = right_dock
 5617                .active_panel()
 5618                .map(|panel| panel.persistent_name().to_string());
 5619            let right_dock_zoom = right_dock
 5620                .active_panel()
 5621                .map(|panel| panel.is_zoomed(window, cx))
 5622                .unwrap_or(false);
 5623
 5624            let bottom_dock = this.bottom_dock.read(cx);
 5625            let bottom_visible = bottom_dock.is_open();
 5626            let bottom_active_panel = bottom_dock
 5627                .active_panel()
 5628                .map(|panel| panel.persistent_name().to_string());
 5629            let bottom_dock_zoom = bottom_dock
 5630                .active_panel()
 5631                .map(|panel| panel.is_zoomed(window, cx))
 5632                .unwrap_or(false);
 5633
 5634            DockStructure {
 5635                left: DockData {
 5636                    visible: left_visible,
 5637                    active_panel: left_active_panel,
 5638                    zoom: left_dock_zoom,
 5639                },
 5640                right: DockData {
 5641                    visible: right_visible,
 5642                    active_panel: right_active_panel,
 5643                    zoom: right_dock_zoom,
 5644                },
 5645                bottom: DockData {
 5646                    visible: bottom_visible,
 5647                    active_panel: bottom_active_panel,
 5648                    zoom: bottom_dock_zoom,
 5649                },
 5650            }
 5651        }
 5652
 5653        match self.serialize_workspace_location(cx) {
 5654            WorkspaceLocation::Location(location, paths) => {
 5655                let breakpoints = self.project.update(cx, |project, cx| {
 5656                    project
 5657                        .breakpoint_store()
 5658                        .read(cx)
 5659                        .all_source_breakpoints(cx)
 5660                });
 5661                let user_toolchains = self
 5662                    .project
 5663                    .read(cx)
 5664                    .user_toolchains(cx)
 5665                    .unwrap_or_default();
 5666
 5667                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5668                let docks = build_serialized_docks(self, window, cx);
 5669                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5670
 5671                let serialized_workspace = SerializedWorkspace {
 5672                    id: database_id,
 5673                    location,
 5674                    paths,
 5675                    center_group,
 5676                    window_bounds,
 5677                    display: Default::default(),
 5678                    docks,
 5679                    centered_layout: self.centered_layout,
 5680                    session_id: self.session_id.clone(),
 5681                    breakpoints,
 5682                    window_id: Some(window.window_handle().window_id().as_u64()),
 5683                    user_toolchains,
 5684                };
 5685
 5686                window.spawn(cx, async move |_| {
 5687                    persistence::DB.save_workspace(serialized_workspace).await;
 5688                })
 5689            }
 5690            WorkspaceLocation::DetachFromSession => {
 5691                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5692                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5693                window.spawn(cx, async move |_| {
 5694                    persistence::DB
 5695                        .set_window_open_status(
 5696                            database_id,
 5697                            window_bounds,
 5698                            display.unwrap_or_default(),
 5699                        )
 5700                        .await
 5701                        .log_err();
 5702                    persistence::DB
 5703                        .set_session_id(database_id, None)
 5704                        .await
 5705                        .log_err();
 5706                })
 5707            }
 5708            WorkspaceLocation::None => Task::ready(()),
 5709        }
 5710    }
 5711
 5712    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5713        let paths = PathList::new(&self.root_paths(cx));
 5714        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5715            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5716        } else if self.project.read(cx).is_local() {
 5717            if !paths.is_empty() {
 5718                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5719            } else {
 5720                WorkspaceLocation::DetachFromSession
 5721            }
 5722        } else {
 5723            WorkspaceLocation::None
 5724        }
 5725    }
 5726
 5727    fn update_history(&self, cx: &mut App) {
 5728        let Some(id) = self.database_id() else {
 5729            return;
 5730        };
 5731        if !self.project.read(cx).is_local() {
 5732            return;
 5733        }
 5734        if let Some(manager) = HistoryManager::global(cx) {
 5735            let paths = PathList::new(&self.root_paths(cx));
 5736            manager.update(cx, |this, cx| {
 5737                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5738            });
 5739        }
 5740    }
 5741
 5742    async fn serialize_items(
 5743        this: &WeakEntity<Self>,
 5744        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5745        cx: &mut AsyncWindowContext,
 5746    ) -> Result<()> {
 5747        const CHUNK_SIZE: usize = 200;
 5748
 5749        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5750
 5751        while let Some(items_received) = serializable_items.next().await {
 5752            let unique_items =
 5753                items_received
 5754                    .into_iter()
 5755                    .fold(HashMap::default(), |mut acc, item| {
 5756                        acc.entry(item.item_id()).or_insert(item);
 5757                        acc
 5758                    });
 5759
 5760            // We use into_iter() here so that the references to the items are moved into
 5761            // the tasks and not kept alive while we're sleeping.
 5762            for (_, item) in unique_items.into_iter() {
 5763                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5764                    item.serialize(workspace, false, window, cx)
 5765                }) {
 5766                    cx.background_spawn(async move { task.await.log_err() })
 5767                        .detach();
 5768                }
 5769            }
 5770
 5771            cx.background_executor()
 5772                .timer(SERIALIZATION_THROTTLE_TIME)
 5773                .await;
 5774        }
 5775
 5776        Ok(())
 5777    }
 5778
 5779    pub(crate) fn enqueue_item_serialization(
 5780        &mut self,
 5781        item: Box<dyn SerializableItemHandle>,
 5782    ) -> Result<()> {
 5783        self.serializable_items_tx
 5784            .unbounded_send(item)
 5785            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5786    }
 5787
 5788    pub(crate) fn load_workspace(
 5789        serialized_workspace: SerializedWorkspace,
 5790        paths_to_open: Vec<Option<ProjectPath>>,
 5791        window: &mut Window,
 5792        cx: &mut Context<Workspace>,
 5793    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5794        cx.spawn_in(window, async move |workspace, cx| {
 5795            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5796
 5797            let mut center_group = None;
 5798            let mut center_items = None;
 5799
 5800            // Traverse the splits tree and add to things
 5801            if let Some((group, active_pane, items)) = serialized_workspace
 5802                .center_group
 5803                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5804                .await
 5805            {
 5806                center_items = Some(items);
 5807                center_group = Some((group, active_pane))
 5808            }
 5809
 5810            let mut items_by_project_path = HashMap::default();
 5811            let mut item_ids_by_kind = HashMap::default();
 5812            let mut all_deserialized_items = Vec::default();
 5813            cx.update(|_, cx| {
 5814                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5815                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5816                        item_ids_by_kind
 5817                            .entry(serializable_item_handle.serialized_item_kind())
 5818                            .or_insert(Vec::new())
 5819                            .push(item.item_id().as_u64() as ItemId);
 5820                    }
 5821
 5822                    if let Some(project_path) = item.project_path(cx) {
 5823                        items_by_project_path.insert(project_path, item.clone());
 5824                    }
 5825                    all_deserialized_items.push(item);
 5826                }
 5827            })?;
 5828
 5829            let opened_items = paths_to_open
 5830                .into_iter()
 5831                .map(|path_to_open| {
 5832                    path_to_open
 5833                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5834                })
 5835                .collect::<Vec<_>>();
 5836
 5837            // Remove old panes from workspace panes list
 5838            workspace.update_in(cx, |workspace, window, cx| {
 5839                if let Some((center_group, active_pane)) = center_group {
 5840                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5841
 5842                    // Swap workspace center group
 5843                    workspace.center = PaneGroup::with_root(center_group);
 5844                    workspace.center.set_is_center(true);
 5845                    workspace.center.mark_positions(cx);
 5846
 5847                    if let Some(active_pane) = active_pane {
 5848                        workspace.set_active_pane(&active_pane, window, cx);
 5849                        cx.focus_self(window);
 5850                    } else {
 5851                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5852                    }
 5853                }
 5854
 5855                let docks = serialized_workspace.docks;
 5856
 5857                for (dock, serialized_dock) in [
 5858                    (&mut workspace.right_dock, docks.right),
 5859                    (&mut workspace.left_dock, docks.left),
 5860                    (&mut workspace.bottom_dock, docks.bottom),
 5861                ]
 5862                .iter_mut()
 5863                {
 5864                    dock.update(cx, |dock, cx| {
 5865                        dock.serialized_dock = Some(serialized_dock.clone());
 5866                        dock.restore_state(window, cx);
 5867                    });
 5868                }
 5869
 5870                cx.notify();
 5871            })?;
 5872
 5873            let _ = project
 5874                .update(cx, |project, cx| {
 5875                    project
 5876                        .breakpoint_store()
 5877                        .update(cx, |breakpoint_store, cx| {
 5878                            breakpoint_store
 5879                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5880                        })
 5881                })?
 5882                .await;
 5883
 5884            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5885            // after loading the items, we might have different items and in order to avoid
 5886            // the database filling up, we delete items that haven't been loaded now.
 5887            //
 5888            // The items that have been loaded, have been saved after they've been added to the workspace.
 5889            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5890                item_ids_by_kind
 5891                    .into_iter()
 5892                    .map(|(item_kind, loaded_items)| {
 5893                        SerializableItemRegistry::cleanup(
 5894                            item_kind,
 5895                            serialized_workspace.id,
 5896                            loaded_items,
 5897                            window,
 5898                            cx,
 5899                        )
 5900                        .log_err()
 5901                    })
 5902                    .collect::<Vec<_>>()
 5903            })?;
 5904
 5905            futures::future::join_all(clean_up_tasks).await;
 5906
 5907            workspace
 5908                .update_in(cx, |workspace, window, cx| {
 5909                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5910                    workspace.serialize_workspace_internal(window, cx).detach();
 5911
 5912                    // Ensure that we mark the window as edited if we did load dirty items
 5913                    workspace.update_window_edited(window, cx);
 5914                })
 5915                .ok();
 5916
 5917            Ok(opened_items)
 5918        })
 5919    }
 5920
 5921    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5922        self.add_workspace_actions_listeners(div, window, cx)
 5923            .on_action(cx.listener(
 5924                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5925                    for action in &action_sequence.0 {
 5926                        window.dispatch_action(action.boxed_clone(), cx);
 5927                    }
 5928                },
 5929            ))
 5930            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5931            .on_action(cx.listener(Self::close_all_items_and_panes))
 5932            .on_action(cx.listener(Self::save_all))
 5933            .on_action(cx.listener(Self::send_keystrokes))
 5934            .on_action(cx.listener(Self::add_folder_to_project))
 5935            .on_action(cx.listener(Self::follow_next_collaborator))
 5936            .on_action(cx.listener(Self::close_window))
 5937            .on_action(cx.listener(Self::activate_pane_at_index))
 5938            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5939            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5940            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5941            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5942                let pane = workspace.active_pane().clone();
 5943                workspace.unfollow_in_pane(&pane, window, cx);
 5944            }))
 5945            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5946                workspace
 5947                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5948                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5949            }))
 5950            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5951                workspace
 5952                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5953                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5954            }))
 5955            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5956                workspace
 5957                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5958                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5959            }))
 5960            .on_action(
 5961                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5962                    workspace.activate_previous_pane(window, cx)
 5963                }),
 5964            )
 5965            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5966                workspace.activate_next_pane(window, cx)
 5967            }))
 5968            .on_action(
 5969                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5970                    workspace.activate_next_window(cx)
 5971                }),
 5972            )
 5973            .on_action(
 5974                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5975                    workspace.activate_previous_window(cx)
 5976                }),
 5977            )
 5978            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5979                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5980            }))
 5981            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5982                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5983            }))
 5984            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5985                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5986            }))
 5987            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5988                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5989            }))
 5990            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5991                workspace.activate_next_pane(window, cx)
 5992            }))
 5993            .on_action(cx.listener(
 5994                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5995                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5996                },
 5997            ))
 5998            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5999                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6000            }))
 6001            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6002                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6003            }))
 6004            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6005                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6006            }))
 6007            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6008                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6009            }))
 6010            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6011                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6012                    SplitDirection::Down,
 6013                    SplitDirection::Up,
 6014                    SplitDirection::Right,
 6015                    SplitDirection::Left,
 6016                ];
 6017                for dir in DIRECTION_PRIORITY {
 6018                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6019                        workspace.swap_pane_in_direction(dir, cx);
 6020                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6021                        break;
 6022                    }
 6023                }
 6024            }))
 6025            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6026                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6027            }))
 6028            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6029                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6030            }))
 6031            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6032                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6033            }))
 6034            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6035                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6036            }))
 6037            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6038                this.toggle_dock(DockPosition::Left, window, cx);
 6039            }))
 6040            .on_action(cx.listener(
 6041                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6042                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6043                },
 6044            ))
 6045            .on_action(cx.listener(
 6046                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6047                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6048                },
 6049            ))
 6050            .on_action(cx.listener(
 6051                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6052                    if !workspace.close_active_dock(window, cx) {
 6053                        cx.propagate();
 6054                    }
 6055                },
 6056            ))
 6057            .on_action(
 6058                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6059                    workspace.close_all_docks(window, cx);
 6060                }),
 6061            )
 6062            .on_action(cx.listener(Self::toggle_all_docks))
 6063            .on_action(cx.listener(
 6064                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6065                    workspace.clear_all_notifications(cx);
 6066                },
 6067            ))
 6068            .on_action(cx.listener(
 6069                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6070                    workspace.clear_navigation_history(window, cx);
 6071                },
 6072            ))
 6073            .on_action(cx.listener(
 6074                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6075                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6076                        workspace.suppress_notification(&notification_id, cx);
 6077                    }
 6078                },
 6079            ))
 6080            .on_action(cx.listener(
 6081                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6082                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6083                },
 6084            ))
 6085            .on_action(
 6086                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6087                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6088                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6089                            trusted_worktrees.clear_trusted_paths()
 6090                        });
 6091                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6092                        cx.spawn(async move |_, cx| {
 6093                            if clear_task.await.log_err().is_some() {
 6094                                cx.update(|cx| reload(cx)).ok();
 6095                            }
 6096                        })
 6097                        .detach();
 6098                    }
 6099                }),
 6100            )
 6101            .on_action(cx.listener(
 6102                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6103                    workspace.reopen_closed_item(window, cx).detach();
 6104                },
 6105            ))
 6106            .on_action(cx.listener(
 6107                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6108                    for dock in workspace.all_docks() {
 6109                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6110                            let Some(panel) = dock.read(cx).active_panel() else {
 6111                                return;
 6112                            };
 6113
 6114                            // Set to `None`, then the size will fall back to the default.
 6115                            panel.clone().set_size(None, window, cx);
 6116
 6117                            return;
 6118                        }
 6119                    }
 6120                },
 6121            ))
 6122            .on_action(cx.listener(
 6123                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6124                    for dock in workspace.all_docks() {
 6125                        if let Some(panel) = dock.read(cx).visible_panel() {
 6126                            // Set to `None`, then the size will fall back to the default.
 6127                            panel.clone().set_size(None, window, cx);
 6128                        }
 6129                    }
 6130                },
 6131            ))
 6132            .on_action(cx.listener(
 6133                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6134                    adjust_active_dock_size_by_px(
 6135                        px_with_ui_font_fallback(act.px, cx),
 6136                        workspace,
 6137                        window,
 6138                        cx,
 6139                    );
 6140                },
 6141            ))
 6142            .on_action(cx.listener(
 6143                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6144                    adjust_active_dock_size_by_px(
 6145                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6146                        workspace,
 6147                        window,
 6148                        cx,
 6149                    );
 6150                },
 6151            ))
 6152            .on_action(cx.listener(
 6153                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6154                    adjust_open_docks_size_by_px(
 6155                        px_with_ui_font_fallback(act.px, cx),
 6156                        workspace,
 6157                        window,
 6158                        cx,
 6159                    );
 6160                },
 6161            ))
 6162            .on_action(cx.listener(
 6163                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6164                    adjust_open_docks_size_by_px(
 6165                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6166                        workspace,
 6167                        window,
 6168                        cx,
 6169                    );
 6170                },
 6171            ))
 6172            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6173            .on_action(cx.listener(
 6174                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6175                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6176                        let dock = active_dock.read(cx);
 6177                        if let Some(active_panel) = dock.active_panel() {
 6178                            if active_panel.pane(cx).is_none() {
 6179                                let mut recent_pane: Option<Entity<Pane>> = None;
 6180                                let mut recent_timestamp = 0;
 6181                                for pane_handle in workspace.panes() {
 6182                                    let pane = pane_handle.read(cx);
 6183                                    for entry in pane.activation_history() {
 6184                                        if entry.timestamp > recent_timestamp {
 6185                                            recent_timestamp = entry.timestamp;
 6186                                            recent_pane = Some(pane_handle.clone());
 6187                                        }
 6188                                    }
 6189                                }
 6190
 6191                                if let Some(pane) = recent_pane {
 6192                                    pane.update(cx, |pane, cx| {
 6193                                        let current_index = pane.active_item_index();
 6194                                        let items_len = pane.items_len();
 6195                                        if items_len > 0 {
 6196                                            let next_index = if current_index + 1 < items_len {
 6197                                                current_index + 1
 6198                                            } else {
 6199                                                0
 6200                                            };
 6201                                            pane.activate_item(
 6202                                                next_index, false, false, window, cx,
 6203                                            );
 6204                                        }
 6205                                    });
 6206                                    return;
 6207                                }
 6208                            }
 6209                        }
 6210                    }
 6211                    cx.propagate();
 6212                },
 6213            ))
 6214            .on_action(cx.listener(
 6215                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6216                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6217                        let dock = active_dock.read(cx);
 6218                        if let Some(active_panel) = dock.active_panel() {
 6219                            if active_panel.pane(cx).is_none() {
 6220                                let mut recent_pane: Option<Entity<Pane>> = None;
 6221                                let mut recent_timestamp = 0;
 6222                                for pane_handle in workspace.panes() {
 6223                                    let pane = pane_handle.read(cx);
 6224                                    for entry in pane.activation_history() {
 6225                                        if entry.timestamp > recent_timestamp {
 6226                                            recent_timestamp = entry.timestamp;
 6227                                            recent_pane = Some(pane_handle.clone());
 6228                                        }
 6229                                    }
 6230                                }
 6231
 6232                                if let Some(pane) = recent_pane {
 6233                                    pane.update(cx, |pane, cx| {
 6234                                        let current_index = pane.active_item_index();
 6235                                        let items_len = pane.items_len();
 6236                                        if items_len > 0 {
 6237                                            let prev_index = if current_index > 0 {
 6238                                                current_index - 1
 6239                                            } else {
 6240                                                items_len.saturating_sub(1)
 6241                                            };
 6242                                            pane.activate_item(
 6243                                                prev_index, false, false, window, cx,
 6244                                            );
 6245                                        }
 6246                                    });
 6247                                    return;
 6248                                }
 6249                            }
 6250                        }
 6251                    }
 6252                    cx.propagate();
 6253                },
 6254            ))
 6255            .on_action(cx.listener(Workspace::cancel))
 6256    }
 6257
 6258    #[cfg(any(test, feature = "test-support"))]
 6259    pub fn set_random_database_id(&mut self) {
 6260        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6261    }
 6262
 6263    #[cfg(any(test, feature = "test-support"))]
 6264    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6265        use node_runtime::NodeRuntime;
 6266        use session::Session;
 6267
 6268        let client = project.read(cx).client();
 6269        let user_store = project.read(cx).user_store();
 6270        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6271        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6272        window.activate_window();
 6273        let app_state = Arc::new(AppState {
 6274            languages: project.read(cx).languages().clone(),
 6275            workspace_store,
 6276            client,
 6277            user_store,
 6278            fs: project.read(cx).fs().clone(),
 6279            build_window_options: |_, _| Default::default(),
 6280            node_runtime: NodeRuntime::unavailable(),
 6281            session,
 6282        });
 6283        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6284        workspace
 6285            .active_pane
 6286            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6287        workspace
 6288    }
 6289
 6290    pub fn register_action<A: Action>(
 6291        &mut self,
 6292        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6293    ) -> &mut Self {
 6294        let callback = Arc::new(callback);
 6295
 6296        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6297            let callback = callback.clone();
 6298            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6299                (callback)(workspace, event, window, cx)
 6300            }))
 6301        }));
 6302        self
 6303    }
 6304    pub fn register_action_renderer(
 6305        &mut self,
 6306        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6307    ) -> &mut Self {
 6308        self.workspace_actions.push(Box::new(callback));
 6309        self
 6310    }
 6311
 6312    fn add_workspace_actions_listeners(
 6313        &self,
 6314        mut div: Div,
 6315        window: &mut Window,
 6316        cx: &mut Context<Self>,
 6317    ) -> Div {
 6318        for action in self.workspace_actions.iter() {
 6319            div = (action)(div, self, window, cx)
 6320        }
 6321        div
 6322    }
 6323
 6324    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6325        self.modal_layer.read(cx).has_active_modal()
 6326    }
 6327
 6328    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6329        self.modal_layer.read(cx).active_modal()
 6330    }
 6331
 6332    pub fn is_modal_open<V: 'static>(&self, cx: &App) -> bool {
 6333        self.modal_layer.read(cx).active_modal::<V>().is_some()
 6334    }
 6335
 6336    pub fn set_next_modal_placement(&mut self, placement: ModalPlacement) {
 6337        self.next_modal_placement = Some(placement);
 6338    }
 6339
 6340    fn take_next_modal_placement(&mut self) -> ModalPlacement {
 6341        self.next_modal_placement.take().unwrap_or_default()
 6342    }
 6343
 6344    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6345    where
 6346        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6347    {
 6348        let placement = self.take_next_modal_placement();
 6349        self.modal_layer.update(cx, |modal_layer, cx| {
 6350            modal_layer.toggle_modal_with_placement(window, cx, placement, build)
 6351        })
 6352    }
 6353
 6354    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6355        self.modal_layer
 6356            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6357    }
 6358
 6359    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6360        self.toast_layer
 6361            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6362    }
 6363
 6364    pub fn toggle_centered_layout(
 6365        &mut self,
 6366        _: &ToggleCenteredLayout,
 6367        _: &mut Window,
 6368        cx: &mut Context<Self>,
 6369    ) {
 6370        self.centered_layout = !self.centered_layout;
 6371        if let Some(database_id) = self.database_id() {
 6372            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6373                .detach_and_log_err(cx);
 6374        }
 6375        cx.notify();
 6376    }
 6377
 6378    fn adjust_padding(padding: Option<f32>) -> f32 {
 6379        padding
 6380            .unwrap_or(CenteredPaddingSettings::default().0)
 6381            .clamp(
 6382                CenteredPaddingSettings::MIN_PADDING,
 6383                CenteredPaddingSettings::MAX_PADDING,
 6384            )
 6385    }
 6386
 6387    fn render_dock(
 6388        &self,
 6389        position: DockPosition,
 6390        dock: &Entity<Dock>,
 6391        window: &mut Window,
 6392        cx: &mut App,
 6393    ) -> Option<Div> {
 6394        if self.zoomed_position == Some(position) {
 6395            return None;
 6396        }
 6397
 6398        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6399            let pane = panel.pane(cx)?;
 6400            let follower_states = &self.follower_states;
 6401            leader_border_for_pane(follower_states, &pane, window, cx)
 6402        });
 6403
 6404        Some(
 6405            div()
 6406                .flex()
 6407                .flex_none()
 6408                .overflow_hidden()
 6409                .child(dock.clone())
 6410                .children(leader_border),
 6411        )
 6412    }
 6413
 6414    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6415        window.root().flatten()
 6416    }
 6417
 6418    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6419        self.zoomed.as_ref()
 6420    }
 6421
 6422    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6423        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6424            return;
 6425        };
 6426        let windows = cx.windows();
 6427        let next_window =
 6428            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6429                || {
 6430                    windows
 6431                        .iter()
 6432                        .cycle()
 6433                        .skip_while(|window| window.window_id() != current_window_id)
 6434                        .nth(1)
 6435                },
 6436            );
 6437
 6438        if let Some(window) = next_window {
 6439            window
 6440                .update(cx, |_, window, _| window.activate_window())
 6441                .ok();
 6442        }
 6443    }
 6444
 6445    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6446        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6447            return;
 6448        };
 6449        let windows = cx.windows();
 6450        let prev_window =
 6451            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6452                || {
 6453                    windows
 6454                        .iter()
 6455                        .rev()
 6456                        .cycle()
 6457                        .skip_while(|window| window.window_id() != current_window_id)
 6458                        .nth(1)
 6459                },
 6460            );
 6461
 6462        if let Some(window) = prev_window {
 6463            window
 6464                .update(cx, |_, window, _| window.activate_window())
 6465                .ok();
 6466        }
 6467    }
 6468
 6469    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6470        if cx.stop_active_drag(window) {
 6471        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6472            dismiss_app_notification(&notification_id, cx);
 6473        } else {
 6474            cx.propagate();
 6475        }
 6476    }
 6477
 6478    fn adjust_dock_size_by_px(
 6479        &mut self,
 6480        panel_size: Pixels,
 6481        dock_pos: DockPosition,
 6482        px: Pixels,
 6483        window: &mut Window,
 6484        cx: &mut Context<Self>,
 6485    ) {
 6486        match dock_pos {
 6487            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6488            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6489            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6490        }
 6491    }
 6492
 6493    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6494        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6495
 6496        self.left_dock.update(cx, |left_dock, cx| {
 6497            if WorkspaceSettings::get_global(cx)
 6498                .resize_all_panels_in_dock
 6499                .contains(&DockPosition::Left)
 6500            {
 6501                left_dock.resize_all_panels(Some(size), window, cx);
 6502            } else {
 6503                left_dock.resize_active_panel(Some(size), window, cx);
 6504            }
 6505        });
 6506        self.clamp_utility_pane_widths(window, cx);
 6507    }
 6508
 6509    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6510        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6511        self.left_dock.read_with(cx, |left_dock, cx| {
 6512            let left_dock_size = left_dock
 6513                .active_panel_size(window, cx)
 6514                .unwrap_or(Pixels::ZERO);
 6515            if left_dock_size + size > self.bounds.right() {
 6516                size = self.bounds.right() - left_dock_size
 6517            }
 6518        });
 6519        self.right_dock.update(cx, |right_dock, cx| {
 6520            if WorkspaceSettings::get_global(cx)
 6521                .resize_all_panels_in_dock
 6522                .contains(&DockPosition::Right)
 6523            {
 6524                right_dock.resize_all_panels(Some(size), window, cx);
 6525            } else {
 6526                right_dock.resize_active_panel(Some(size), window, cx);
 6527            }
 6528        });
 6529        self.clamp_utility_pane_widths(window, cx);
 6530    }
 6531
 6532    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6533        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6534        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6535            if WorkspaceSettings::get_global(cx)
 6536                .resize_all_panels_in_dock
 6537                .contains(&DockPosition::Bottom)
 6538            {
 6539                bottom_dock.resize_all_panels(Some(size), window, cx);
 6540            } else {
 6541                bottom_dock.resize_active_panel(Some(size), window, cx);
 6542            }
 6543        });
 6544        self.clamp_utility_pane_widths(window, cx);
 6545    }
 6546
 6547    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6548        let left_dock_width = self
 6549            .left_dock
 6550            .read(cx)
 6551            .active_panel_size(window, cx)
 6552            .unwrap_or(px(0.0));
 6553        let right_dock_width = self
 6554            .right_dock
 6555            .read(cx)
 6556            .active_panel_size(window, cx)
 6557            .unwrap_or(px(0.0));
 6558        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6559        center_pane_width - px(10.0)
 6560    }
 6561
 6562    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6563        let max_width = self.max_utility_pane_width(window, cx);
 6564
 6565        // Clamp left slot utility pane if it exists
 6566        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6567            let current_width = handle.width(cx);
 6568            if current_width > max_width {
 6569                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6570            }
 6571        }
 6572
 6573        // Clamp right slot utility pane if it exists
 6574        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6575            let current_width = handle.width(cx);
 6576            if current_width > max_width {
 6577                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6578            }
 6579        }
 6580    }
 6581
 6582    fn toggle_edit_predictions_all_files(
 6583        &mut self,
 6584        _: &ToggleEditPrediction,
 6585        _window: &mut Window,
 6586        cx: &mut Context<Self>,
 6587    ) {
 6588        let fs = self.project().read(cx).fs().clone();
 6589        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6590        update_settings_file(fs, cx, move |file, _| {
 6591            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6592        });
 6593    }
 6594
 6595    pub fn show_worktree_trust_security_modal(
 6596        &mut self,
 6597        toggle: bool,
 6598        window: &mut Window,
 6599        cx: &mut Context<Self>,
 6600    ) {
 6601        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6602            if toggle {
 6603                security_modal.update(cx, |security_modal, cx| {
 6604                    security_modal.dismiss(cx);
 6605                })
 6606            } else {
 6607                security_modal.update(cx, |security_modal, cx| {
 6608                    security_modal.refresh_restricted_paths(cx);
 6609                });
 6610            }
 6611        } else {
 6612            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6613                .map(|trusted_worktrees| {
 6614                    trusted_worktrees
 6615                        .read(cx)
 6616                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6617                })
 6618                .unwrap_or(false);
 6619            if has_restricted_worktrees {
 6620                let project = self.project().read(cx);
 6621                let remote_host = project.remote_connection_options(cx);
 6622                let worktree_store = project.worktree_store().downgrade();
 6623                self.toggle_modal(window, cx, |_, cx| {
 6624                    SecurityModal::new(worktree_store, remote_host, cx)
 6625                });
 6626            }
 6627        }
 6628    }
 6629
 6630    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6631        self.update_window_title(window, cx);
 6632        self.serialize_workspace(window, cx);
 6633        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6634        self.update_history(cx);
 6635    }
 6636}
 6637
 6638fn leader_border_for_pane(
 6639    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6640    pane: &Entity<Pane>,
 6641    _: &Window,
 6642    cx: &App,
 6643) -> Option<Div> {
 6644    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6645        if state.pane() == pane {
 6646            Some((*leader_id, state))
 6647        } else {
 6648            None
 6649        }
 6650    })?;
 6651
 6652    let mut leader_color = match leader_id {
 6653        CollaboratorId::PeerId(leader_peer_id) => {
 6654            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6655            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6656
 6657            cx.theme()
 6658                .players()
 6659                .color_for_participant(leader.participant_index.0)
 6660                .cursor
 6661        }
 6662        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6663    };
 6664    leader_color.fade_out(0.3);
 6665    Some(
 6666        div()
 6667            .absolute()
 6668            .size_full()
 6669            .left_0()
 6670            .top_0()
 6671            .border_2()
 6672            .border_color(leader_color),
 6673    )
 6674}
 6675
 6676fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6677    ZED_WINDOW_POSITION
 6678        .zip(*ZED_WINDOW_SIZE)
 6679        .map(|(position, size)| Bounds {
 6680            origin: position,
 6681            size,
 6682        })
 6683}
 6684
 6685fn open_items(
 6686    serialized_workspace: Option<SerializedWorkspace>,
 6687    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6688    window: &mut Window,
 6689    cx: &mut Context<Workspace>,
 6690) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6691    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6692        Workspace::load_workspace(
 6693            serialized_workspace,
 6694            project_paths_to_open
 6695                .iter()
 6696                .map(|(_, project_path)| project_path)
 6697                .cloned()
 6698                .collect(),
 6699            window,
 6700            cx,
 6701        )
 6702    });
 6703
 6704    cx.spawn_in(window, async move |workspace, cx| {
 6705        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6706
 6707        if let Some(restored_items) = restored_items {
 6708            let restored_items = restored_items.await?;
 6709
 6710            let restored_project_paths = restored_items
 6711                .iter()
 6712                .filter_map(|item| {
 6713                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6714                        .ok()
 6715                        .flatten()
 6716                })
 6717                .collect::<HashSet<_>>();
 6718
 6719            for restored_item in restored_items {
 6720                opened_items.push(restored_item.map(Ok));
 6721            }
 6722
 6723            project_paths_to_open
 6724                .iter_mut()
 6725                .for_each(|(_, project_path)| {
 6726                    if let Some(project_path_to_open) = project_path
 6727                        && restored_project_paths.contains(project_path_to_open)
 6728                    {
 6729                        *project_path = None;
 6730                    }
 6731                });
 6732        } else {
 6733            for _ in 0..project_paths_to_open.len() {
 6734                opened_items.push(None);
 6735            }
 6736        }
 6737        assert!(opened_items.len() == project_paths_to_open.len());
 6738
 6739        let tasks =
 6740            project_paths_to_open
 6741                .into_iter()
 6742                .enumerate()
 6743                .map(|(ix, (abs_path, project_path))| {
 6744                    let workspace = workspace.clone();
 6745                    cx.spawn(async move |cx| {
 6746                        let file_project_path = project_path?;
 6747                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6748                            workspace.project().update(cx, |project, cx| {
 6749                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6750                            })
 6751                        });
 6752
 6753                        // We only want to open file paths here. If one of the items
 6754                        // here is a directory, it was already opened further above
 6755                        // with a `find_or_create_worktree`.
 6756                        if let Ok(task) = abs_path_task
 6757                            && task.await.is_none_or(|p| p.is_file())
 6758                        {
 6759                            return Some((
 6760                                ix,
 6761                                workspace
 6762                                    .update_in(cx, |workspace, window, cx| {
 6763                                        workspace.open_path(
 6764                                            file_project_path,
 6765                                            None,
 6766                                            true,
 6767                                            window,
 6768                                            cx,
 6769                                        )
 6770                                    })
 6771                                    .log_err()?
 6772                                    .await,
 6773                            ));
 6774                        }
 6775                        None
 6776                    })
 6777                });
 6778
 6779        let tasks = tasks.collect::<Vec<_>>();
 6780
 6781        let tasks = futures::future::join_all(tasks);
 6782        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6783            opened_items[ix] = Some(path_open_result);
 6784        }
 6785
 6786        Ok(opened_items)
 6787    })
 6788}
 6789
 6790enum ActivateInDirectionTarget {
 6791    Pane(Entity<Pane>),
 6792    Dock(Entity<Dock>),
 6793}
 6794
 6795fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6796    workspace
 6797        .update(cx, |workspace, _, cx| {
 6798            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6799                struct DatabaseFailedNotification;
 6800
 6801                workspace.show_notification(
 6802                    NotificationId::unique::<DatabaseFailedNotification>(),
 6803                    cx,
 6804                    |cx| {
 6805                        cx.new(|cx| {
 6806                            MessageNotification::new("Failed to load the database file.", cx)
 6807                                .primary_message("File an Issue")
 6808                                .primary_icon(IconName::Plus)
 6809                                .primary_on_click(|window, cx| {
 6810                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6811                                })
 6812                        })
 6813                    },
 6814                );
 6815            }
 6816        })
 6817        .log_err();
 6818}
 6819
 6820fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6821    if val == 0 {
 6822        ThemeSettings::get_global(cx).ui_font_size(cx)
 6823    } else {
 6824        px(val as f32)
 6825    }
 6826}
 6827
 6828fn adjust_active_dock_size_by_px(
 6829    px: Pixels,
 6830    workspace: &mut Workspace,
 6831    window: &mut Window,
 6832    cx: &mut Context<Workspace>,
 6833) {
 6834    let Some(active_dock) = workspace
 6835        .all_docks()
 6836        .into_iter()
 6837        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6838    else {
 6839        return;
 6840    };
 6841    let dock = active_dock.read(cx);
 6842    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6843        return;
 6844    };
 6845    let dock_pos = dock.position();
 6846    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6847}
 6848
 6849fn adjust_open_docks_size_by_px(
 6850    px: Pixels,
 6851    workspace: &mut Workspace,
 6852    window: &mut Window,
 6853    cx: &mut Context<Workspace>,
 6854) {
 6855    let docks = workspace
 6856        .all_docks()
 6857        .into_iter()
 6858        .filter_map(|dock| {
 6859            if dock.read(cx).is_open() {
 6860                let dock = dock.read(cx);
 6861                let panel_size = dock.active_panel_size(window, cx)?;
 6862                let dock_pos = dock.position();
 6863                Some((panel_size, dock_pos, px))
 6864            } else {
 6865                None
 6866            }
 6867        })
 6868        .collect::<Vec<_>>();
 6869
 6870    docks
 6871        .into_iter()
 6872        .for_each(|(panel_size, dock_pos, offset)| {
 6873            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6874        });
 6875}
 6876
 6877impl Focusable for Workspace {
 6878    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6879        self.active_pane.focus_handle(cx)
 6880    }
 6881}
 6882
 6883#[derive(Clone)]
 6884struct DraggedDock(DockPosition);
 6885
 6886impl Render for DraggedDock {
 6887    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6888        gpui::Empty
 6889    }
 6890}
 6891
 6892impl Render for Workspace {
 6893    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6894        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6895        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6896            log::info!("Rendered first frame");
 6897        }
 6898        let mut context = KeyContext::new_with_defaults();
 6899        context.add("Workspace");
 6900        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6901        if let Some(status) = self
 6902            .debugger_provider
 6903            .as_ref()
 6904            .and_then(|provider| provider.active_thread_state(cx))
 6905        {
 6906            match status {
 6907                ThreadStatus::Running | ThreadStatus::Stepping => {
 6908                    context.add("debugger_running");
 6909                }
 6910                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6911                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6912            }
 6913        }
 6914
 6915        if self.left_dock.read(cx).is_open() {
 6916            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6917                context.set("left_dock", active_panel.panel_key());
 6918            }
 6919        }
 6920
 6921        if self.right_dock.read(cx).is_open() {
 6922            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6923                context.set("right_dock", active_panel.panel_key());
 6924            }
 6925        }
 6926
 6927        if self.bottom_dock.read(cx).is_open() {
 6928            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6929                context.set("bottom_dock", active_panel.panel_key());
 6930            }
 6931        }
 6932
 6933        let centered_layout = self.centered_layout
 6934            && self.center.panes().len() == 1
 6935            && self.active_item(cx).is_some();
 6936        let render_padding = |size| {
 6937            (size > 0.0).then(|| {
 6938                div()
 6939                    .h_full()
 6940                    .w(relative(size))
 6941                    .bg(cx.theme().colors().editor_background)
 6942                    .border_color(cx.theme().colors().pane_group_border)
 6943            })
 6944        };
 6945        let paddings = if centered_layout {
 6946            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6947            (
 6948                render_padding(Self::adjust_padding(
 6949                    settings.left_padding.map(|padding| padding.0),
 6950                )),
 6951                render_padding(Self::adjust_padding(
 6952                    settings.right_padding.map(|padding| padding.0),
 6953                )),
 6954            )
 6955        } else {
 6956            (None, None)
 6957        };
 6958        let ui_font = theme::setup_ui_font(window, cx);
 6959
 6960        let theme = cx.theme().clone();
 6961        let colors = theme.colors();
 6962        let notification_entities = self
 6963            .notifications
 6964            .iter()
 6965            .map(|(_, notification)| notification.entity_id())
 6966            .collect::<Vec<_>>();
 6967        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6968
 6969        client_side_decorations(
 6970            self.actions(div(), window, cx)
 6971                .key_context(context)
 6972                .relative()
 6973                .size_full()
 6974                .flex()
 6975                .flex_col()
 6976                .font(ui_font)
 6977                .gap_0()
 6978                .justify_start()
 6979                .items_start()
 6980                .text_color(colors.text)
 6981                .overflow_hidden()
 6982                .children(self.titlebar_item.clone())
 6983                .on_modifiers_changed(move |_, _, cx| {
 6984                    for &id in &notification_entities {
 6985                        cx.notify(id);
 6986                    }
 6987                })
 6988                .child(
 6989                    div()
 6990                        .size_full()
 6991                        .relative()
 6992                        .flex_1()
 6993                        .flex()
 6994                        .flex_col()
 6995                        .child(
 6996                            div()
 6997                                .id("workspace")
 6998                                .bg(colors.background)
 6999                                .relative()
 7000                                .flex_1()
 7001                                .w_full()
 7002                                .flex()
 7003                                .flex_col()
 7004                                .overflow_hidden()
 7005                                .border_t_1()
 7006                                .border_b_1()
 7007                                .border_color(colors.border)
 7008                                .child({
 7009                                    let this = cx.entity();
 7010                                    canvas(
 7011                                        move |bounds, window, cx| {
 7012                                            this.update(cx, |this, cx| {
 7013                                                let bounds_changed = this.bounds != bounds;
 7014                                                this.bounds = bounds;
 7015
 7016                                                if bounds_changed {
 7017                                                    this.left_dock.update(cx, |dock, cx| {
 7018                                                        dock.clamp_panel_size(
 7019                                                            bounds.size.width,
 7020                                                            window,
 7021                                                            cx,
 7022                                                        )
 7023                                                    });
 7024
 7025                                                    this.right_dock.update(cx, |dock, cx| {
 7026                                                        dock.clamp_panel_size(
 7027                                                            bounds.size.width,
 7028                                                            window,
 7029                                                            cx,
 7030                                                        )
 7031                                                    });
 7032
 7033                                                    this.bottom_dock.update(cx, |dock, cx| {
 7034                                                        dock.clamp_panel_size(
 7035                                                            bounds.size.height,
 7036                                                            window,
 7037                                                            cx,
 7038                                                        )
 7039                                                    });
 7040                                                }
 7041                                            })
 7042                                        },
 7043                                        |_, _, _, _| {},
 7044                                    )
 7045                                    .absolute()
 7046                                    .size_full()
 7047                                })
 7048                                .when(self.zoomed.is_none(), |this| {
 7049                                    this.on_drag_move(cx.listener(
 7050                                        move |workspace,
 7051                                              e: &DragMoveEvent<DraggedDock>,
 7052                                              window,
 7053                                              cx| {
 7054                                            if workspace.previous_dock_drag_coordinates
 7055                                                != Some(e.event.position)
 7056                                            {
 7057                                                workspace.previous_dock_drag_coordinates =
 7058                                                    Some(e.event.position);
 7059                                                match e.drag(cx).0 {
 7060                                                    DockPosition::Left => {
 7061                                                        workspace.resize_left_dock(
 7062                                                            e.event.position.x
 7063                                                                - workspace.bounds.left(),
 7064                                                            window,
 7065                                                            cx,
 7066                                                        );
 7067                                                    }
 7068                                                    DockPosition::Right => {
 7069                                                        workspace.resize_right_dock(
 7070                                                            workspace.bounds.right()
 7071                                                                - e.event.position.x,
 7072                                                            window,
 7073                                                            cx,
 7074                                                        );
 7075                                                    }
 7076                                                    DockPosition::Bottom => {
 7077                                                        workspace.resize_bottom_dock(
 7078                                                            workspace.bounds.bottom()
 7079                                                                - e.event.position.y,
 7080                                                            window,
 7081                                                            cx,
 7082                                                        );
 7083                                                    }
 7084                                                };
 7085                                                workspace.serialize_workspace(window, cx);
 7086                                            }
 7087                                        },
 7088                                    ))
 7089                                    .on_drag_move(cx.listener(
 7090                                        move |workspace,
 7091                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7092                                              window,
 7093                                              cx| {
 7094                                            let slot = e.drag(cx).0;
 7095                                            match slot {
 7096                                                UtilityPaneSlot::Left => {
 7097                                                    let left_dock_width = workspace.left_dock.read(cx)
 7098                                                        .active_panel_size(window, cx)
 7099                                                        .unwrap_or(gpui::px(0.0));
 7100                                                    let new_width = e.event.position.x
 7101                                                        - workspace.bounds.left()
 7102                                                        - left_dock_width;
 7103                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7104                                                }
 7105                                                UtilityPaneSlot::Right => {
 7106                                                    let right_dock_width = workspace.right_dock.read(cx)
 7107                                                        .active_panel_size(window, cx)
 7108                                                        .unwrap_or(gpui::px(0.0));
 7109                                                    let new_width = workspace.bounds.right()
 7110                                                        - e.event.position.x
 7111                                                        - right_dock_width;
 7112                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7113                                                }
 7114                                            }
 7115                                        },
 7116                                    ))
 7117                                })
 7118                                .child({
 7119                                    match bottom_dock_layout {
 7120                                        BottomDockLayout::Full => div()
 7121                                            .flex()
 7122                                            .flex_col()
 7123                                            .h_full()
 7124                                            .child(
 7125                                                div()
 7126                                                    .flex()
 7127                                                    .flex_row()
 7128                                                    .flex_1()
 7129                                                    .overflow_hidden()
 7130                                                    .children(self.render_dock(
 7131                                                        DockPosition::Left,
 7132                                                        &self.left_dock,
 7133                                                        window,
 7134                                                        cx,
 7135                                                    ))
 7136                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7137                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7138                                                            this.when(pane.expanded(cx), |this| {
 7139                                                                this.child(
 7140                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7141                                                                )
 7142                                                            })
 7143                                                        })
 7144                                                    })
 7145                                                    .child(
 7146                                                        div()
 7147                                                            .flex()
 7148                                                            .flex_col()
 7149                                                            .flex_1()
 7150                                                            .overflow_hidden()
 7151                                                            .child(
 7152                                                                h_flex()
 7153                                                                    .flex_1()
 7154                                                                    .when_some(
 7155                                                                        paddings.0,
 7156                                                                        |this, p| {
 7157                                                                            this.child(
 7158                                                                                p.border_r_1(),
 7159                                                                            )
 7160                                                                        },
 7161                                                                    )
 7162                                                                    .child(self.center.render(
 7163                                                                        self.zoomed.as_ref(),
 7164                                                                        &PaneRenderContext {
 7165                                                                            follower_states:
 7166                                                                                &self.follower_states,
 7167                                                                            active_call: self.active_call(),
 7168                                                                            active_pane: &self.active_pane,
 7169                                                                            app_state: &self.app_state,
 7170                                                                            project: &self.project,
 7171                                                                            workspace: &self.weak_self,
 7172                                                                        },
 7173                                                                        window,
 7174                                                                        cx,
 7175                                                                    ))
 7176                                                                    .when_some(
 7177                                                                        paddings.1,
 7178                                                                        |this, p| {
 7179                                                                            this.child(
 7180                                                                                p.border_l_1(),
 7181                                                                            )
 7182                                                                        },
 7183                                                                    ),
 7184                                                            ),
 7185                                                    )
 7186                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7187                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7188                                                            this.when(pane.expanded(cx), |this| {
 7189                                                                this.child(
 7190                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7191                                                                )
 7192                                                            })
 7193                                                        })
 7194                                                    })
 7195                                                    .children(self.render_dock(
 7196                                                        DockPosition::Right,
 7197                                                        &self.right_dock,
 7198                                                        window,
 7199                                                        cx,
 7200                                                    )),
 7201                                            )
 7202                                            .child(div().w_full().children(self.render_dock(
 7203                                                DockPosition::Bottom,
 7204                                                &self.bottom_dock,
 7205                                                window,
 7206                                                cx
 7207                                            ))),
 7208
 7209                                        BottomDockLayout::LeftAligned => div()
 7210                                            .flex()
 7211                                            .flex_row()
 7212                                            .h_full()
 7213                                            .child(
 7214                                                div()
 7215                                                    .flex()
 7216                                                    .flex_col()
 7217                                                    .flex_1()
 7218                                                    .h_full()
 7219                                                    .child(
 7220                                                        div()
 7221                                                            .flex()
 7222                                                            .flex_row()
 7223                                                            .flex_1()
 7224                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7225                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7226                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7227                                                                    this.when(pane.expanded(cx), |this| {
 7228                                                                        this.child(
 7229                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7230                                                                        )
 7231                                                                    })
 7232                                                                })
 7233                                                            })
 7234                                                            .child(
 7235                                                                div()
 7236                                                                    .flex()
 7237                                                                    .flex_col()
 7238                                                                    .flex_1()
 7239                                                                    .overflow_hidden()
 7240                                                                    .child(
 7241                                                                        h_flex()
 7242                                                                            .flex_1()
 7243                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7244                                                                            .child(self.center.render(
 7245                                                                                self.zoomed.as_ref(),
 7246                                                                                &PaneRenderContext {
 7247                                                                                    follower_states:
 7248                                                                                        &self.follower_states,
 7249                                                                                    active_call: self.active_call(),
 7250                                                                                    active_pane: &self.active_pane,
 7251                                                                                    app_state: &self.app_state,
 7252                                                                                    project: &self.project,
 7253                                                                                    workspace: &self.weak_self,
 7254                                                                                },
 7255                                                                                window,
 7256                                                                                cx,
 7257                                                                            ))
 7258                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7259                                                                    )
 7260                                                            )
 7261                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7262                                                                this.when(pane.expanded(cx), |this| {
 7263                                                                    this.child(
 7264                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7265                                                                    )
 7266                                                                })
 7267                                                            })
 7268                                                    )
 7269                                                    .child(
 7270                                                        div()
 7271                                                            .w_full()
 7272                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7273                                                    ),
 7274                                            )
 7275                                            .children(self.render_dock(
 7276                                                DockPosition::Right,
 7277                                                &self.right_dock,
 7278                                                window,
 7279                                                cx,
 7280                                            )),
 7281
 7282                                        BottomDockLayout::RightAligned => div()
 7283                                            .flex()
 7284                                            .flex_row()
 7285                                            .h_full()
 7286                                            .children(self.render_dock(
 7287                                                DockPosition::Left,
 7288                                                &self.left_dock,
 7289                                                window,
 7290                                                cx,
 7291                                            ))
 7292                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7293                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7294                                                    this.when(pane.expanded(cx), |this| {
 7295                                                        this.child(
 7296                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7297                                                        )
 7298                                                    })
 7299                                                })
 7300                                            })
 7301                                            .child(
 7302                                                div()
 7303                                                    .flex()
 7304                                                    .flex_col()
 7305                                                    .flex_1()
 7306                                                    .h_full()
 7307                                                    .child(
 7308                                                        div()
 7309                                                            .flex()
 7310                                                            .flex_row()
 7311                                                            .flex_1()
 7312                                                            .child(
 7313                                                                div()
 7314                                                                    .flex()
 7315                                                                    .flex_col()
 7316                                                                    .flex_1()
 7317                                                                    .overflow_hidden()
 7318                                                                    .child(
 7319                                                                        h_flex()
 7320                                                                            .flex_1()
 7321                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7322                                                                            .child(self.center.render(
 7323                                                                                self.zoomed.as_ref(),
 7324                                                                                &PaneRenderContext {
 7325                                                                                    follower_states:
 7326                                                                                        &self.follower_states,
 7327                                                                                    active_call: self.active_call(),
 7328                                                                                    active_pane: &self.active_pane,
 7329                                                                                    app_state: &self.app_state,
 7330                                                                                    project: &self.project,
 7331                                                                                    workspace: &self.weak_self,
 7332                                                                                },
 7333                                                                                window,
 7334                                                                                cx,
 7335                                                                            ))
 7336                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7337                                                                    )
 7338                                                            )
 7339                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7340                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7341                                                                    this.when(pane.expanded(cx), |this| {
 7342                                                                        this.child(
 7343                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7344                                                                        )
 7345                                                                    })
 7346                                                                })
 7347                                                            })
 7348                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7349                                                    )
 7350                                                    .child(
 7351                                                        div()
 7352                                                            .w_full()
 7353                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7354                                                    ),
 7355                                            ),
 7356
 7357                                        BottomDockLayout::Contained => div()
 7358                                            .flex()
 7359                                            .flex_row()
 7360                                            .h_full()
 7361                                            .children(self.render_dock(
 7362                                                DockPosition::Left,
 7363                                                &self.left_dock,
 7364                                                window,
 7365                                                cx,
 7366                                            ))
 7367                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7368                                                this.when(pane.expanded(cx), |this| {
 7369                                                    this.child(
 7370                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7371                                                    )
 7372                                                })
 7373                                            })
 7374                                            .child(
 7375                                                div()
 7376                                                    .flex()
 7377                                                    .flex_col()
 7378                                                    .flex_1()
 7379                                                    .overflow_hidden()
 7380                                                    .child(
 7381                                                        h_flex()
 7382                                                            .flex_1()
 7383                                                            .when_some(paddings.0, |this, p| {
 7384                                                                this.child(p.border_r_1())
 7385                                                            })
 7386                                                            .child(self.center.render(
 7387                                                                self.zoomed.as_ref(),
 7388                                                                &PaneRenderContext {
 7389                                                                    follower_states:
 7390                                                                        &self.follower_states,
 7391                                                                    active_call: self.active_call(),
 7392                                                                    active_pane: &self.active_pane,
 7393                                                                    app_state: &self.app_state,
 7394                                                                    project: &self.project,
 7395                                                                    workspace: &self.weak_self,
 7396                                                                },
 7397                                                                window,
 7398                                                                cx,
 7399                                                            ))
 7400                                                            .when_some(paddings.1, |this, p| {
 7401                                                                this.child(p.border_l_1())
 7402                                                            }),
 7403                                                    )
 7404                                                    .children(self.render_dock(
 7405                                                        DockPosition::Bottom,
 7406                                                        &self.bottom_dock,
 7407                                                        window,
 7408                                                        cx,
 7409                                                    )),
 7410                                            )
 7411                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7412                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7413                                                    this.when(pane.expanded(cx), |this| {
 7414                                                        this.child(
 7415                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7416                                                        )
 7417                                                    })
 7418                                                })
 7419                                            })
 7420                                            .children(self.render_dock(
 7421                                                DockPosition::Right,
 7422                                                &self.right_dock,
 7423                                                window,
 7424                                                cx,
 7425                                            )),
 7426                                    }
 7427                                })
 7428                                .children(self.zoomed.as_ref().and_then(|view| {
 7429                                    let zoomed_view = view.upgrade()?;
 7430                                    let div = div()
 7431                                        .occlude()
 7432                                        .absolute()
 7433                                        .overflow_hidden()
 7434                                        .border_color(colors.border)
 7435                                        .bg(colors.background)
 7436                                        .child(zoomed_view)
 7437                                        .inset_0()
 7438                                        .shadow_lg();
 7439
 7440                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7441                                       return Some(div);
 7442                                    }
 7443
 7444                                    Some(match self.zoomed_position {
 7445                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7446                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7447                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7448                                        None => {
 7449                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7450                                        }
 7451                                    })
 7452                                }))
 7453                                .children(self.render_notifications(window, cx)),
 7454                        )
 7455                        .when(self.status_bar_visible(cx), |parent| {
 7456                            parent.child(self.status_bar.clone())
 7457                        })
 7458                        .child(self.modal_layer.clone())
 7459                        .child(self.toast_layer.clone()),
 7460                ),
 7461            window,
 7462            cx,
 7463        )
 7464    }
 7465}
 7466
 7467impl WorkspaceStore {
 7468    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7469        Self {
 7470            workspaces: Default::default(),
 7471            _subscriptions: vec![
 7472                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7473                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7474            ],
 7475            client,
 7476        }
 7477    }
 7478
 7479    pub fn update_followers(
 7480        &self,
 7481        project_id: Option<u64>,
 7482        update: proto::update_followers::Variant,
 7483        cx: &App,
 7484    ) -> Option<()> {
 7485        let active_call = ActiveCall::try_global(cx)?;
 7486        let room_id = active_call.read(cx).room()?.read(cx).id();
 7487        self.client
 7488            .send(proto::UpdateFollowers {
 7489                room_id,
 7490                project_id,
 7491                variant: Some(update),
 7492            })
 7493            .log_err()
 7494    }
 7495
 7496    pub async fn handle_follow(
 7497        this: Entity<Self>,
 7498        envelope: TypedEnvelope<proto::Follow>,
 7499        mut cx: AsyncApp,
 7500    ) -> Result<proto::FollowResponse> {
 7501        this.update(&mut cx, |this, cx| {
 7502            let follower = Follower {
 7503                project_id: envelope.payload.project_id,
 7504                peer_id: envelope.original_sender_id()?,
 7505            };
 7506
 7507            let mut response = proto::FollowResponse::default();
 7508            this.workspaces.retain(|workspace| {
 7509                workspace
 7510                    .update(cx, |workspace, window, cx| {
 7511                        let handler_response =
 7512                            workspace.handle_follow(follower.project_id, window, cx);
 7513                        if let Some(active_view) = handler_response.active_view
 7514                            && workspace.project.read(cx).remote_id() == follower.project_id
 7515                        {
 7516                            response.active_view = Some(active_view)
 7517                        }
 7518                    })
 7519                    .is_ok()
 7520            });
 7521
 7522            Ok(response)
 7523        })?
 7524    }
 7525
 7526    async fn handle_update_followers(
 7527        this: Entity<Self>,
 7528        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7529        mut cx: AsyncApp,
 7530    ) -> Result<()> {
 7531        let leader_id = envelope.original_sender_id()?;
 7532        let update = envelope.payload;
 7533
 7534        this.update(&mut cx, |this, cx| {
 7535            this.workspaces.retain(|workspace| {
 7536                workspace
 7537                    .update(cx, |workspace, window, cx| {
 7538                        let project_id = workspace.project.read(cx).remote_id();
 7539                        if update.project_id != project_id && update.project_id.is_some() {
 7540                            return;
 7541                        }
 7542                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7543                    })
 7544                    .is_ok()
 7545            });
 7546            Ok(())
 7547        })?
 7548    }
 7549
 7550    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7551        &self.workspaces
 7552    }
 7553}
 7554
 7555impl ViewId {
 7556    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7557        Ok(Self {
 7558            creator: message
 7559                .creator
 7560                .map(CollaboratorId::PeerId)
 7561                .context("creator is missing")?,
 7562            id: message.id,
 7563        })
 7564    }
 7565
 7566    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7567        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7568            Some(proto::ViewId {
 7569                creator: Some(peer_id),
 7570                id: self.id,
 7571            })
 7572        } else {
 7573            None
 7574        }
 7575    }
 7576}
 7577
 7578impl FollowerState {
 7579    fn pane(&self) -> &Entity<Pane> {
 7580        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7581    }
 7582}
 7583
 7584pub trait WorkspaceHandle {
 7585    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7586}
 7587
 7588impl WorkspaceHandle for Entity<Workspace> {
 7589    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7590        self.read(cx)
 7591            .worktrees(cx)
 7592            .flat_map(|worktree| {
 7593                let worktree_id = worktree.read(cx).id();
 7594                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7595                    worktree_id,
 7596                    path: f.path.clone(),
 7597                })
 7598            })
 7599            .collect::<Vec<_>>()
 7600    }
 7601}
 7602
 7603pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7604    DB.last_workspace().await.log_err().flatten()
 7605}
 7606
 7607pub fn last_session_workspace_locations(
 7608    last_session_id: &str,
 7609    last_session_window_stack: Option<Vec<WindowId>>,
 7610) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7611    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7612        .log_err()
 7613}
 7614
 7615actions!(
 7616    collab,
 7617    [
 7618        /// Opens the channel notes for the current call.
 7619        ///
 7620        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7621        /// channel in the collab panel.
 7622        ///
 7623        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7624        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7625        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7626        OpenChannelNotes,
 7627        /// Mutes your microphone.
 7628        Mute,
 7629        /// Deafens yourself (mute both microphone and speakers).
 7630        Deafen,
 7631        /// Leaves the current call.
 7632        LeaveCall,
 7633        /// Shares the current project with collaborators.
 7634        ShareProject,
 7635        /// Shares your screen with collaborators.
 7636        ScreenShare,
 7637        /// Copies the current room name and session id for debugging purposes.
 7638        CopyRoomId,
 7639    ]
 7640);
 7641actions!(
 7642    zed,
 7643    [
 7644        /// Opens the Zed log file.
 7645        OpenLog,
 7646        /// Reveals the Zed log file in the system file manager.
 7647        RevealLogInFileManager
 7648    ]
 7649);
 7650
 7651async fn join_channel_internal(
 7652    channel_id: ChannelId,
 7653    app_state: &Arc<AppState>,
 7654    requesting_window: Option<WindowHandle<Workspace>>,
 7655    active_call: &Entity<ActiveCall>,
 7656    cx: &mut AsyncApp,
 7657) -> Result<bool> {
 7658    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7659        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7660            return (false, None);
 7661        };
 7662
 7663        let already_in_channel = room.channel_id() == Some(channel_id);
 7664        let should_prompt = room.is_sharing_project()
 7665            && !room.remote_participants().is_empty()
 7666            && !already_in_channel;
 7667        let open_room = if already_in_channel {
 7668            active_call.room().cloned()
 7669        } else {
 7670            None
 7671        };
 7672        (should_prompt, open_room)
 7673    })?;
 7674
 7675    if let Some(room) = open_room {
 7676        let task = room.update(cx, |room, cx| {
 7677            if let Some((project, host)) = room.most_active_project(cx) {
 7678                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7679            }
 7680
 7681            None
 7682        })?;
 7683        if let Some(task) = task {
 7684            task.await?;
 7685        }
 7686        return anyhow::Ok(true);
 7687    }
 7688
 7689    if should_prompt {
 7690        if let Some(workspace) = requesting_window {
 7691            let answer = workspace
 7692                .update(cx, |_, window, cx| {
 7693                    window.prompt(
 7694                        PromptLevel::Warning,
 7695                        "Do you want to switch channels?",
 7696                        Some("Leaving this call will unshare your current project."),
 7697                        &["Yes, Join Channel", "Cancel"],
 7698                        cx,
 7699                    )
 7700                })?
 7701                .await;
 7702
 7703            if answer == Ok(1) {
 7704                return Ok(false);
 7705            }
 7706        } else {
 7707            return Ok(false); // unreachable!() hopefully
 7708        }
 7709    }
 7710
 7711    let client = cx.update(|cx| active_call.read(cx).client())?;
 7712
 7713    let mut client_status = client.status();
 7714
 7715    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7716    'outer: loop {
 7717        let Some(status) = client_status.recv().await else {
 7718            anyhow::bail!("error connecting");
 7719        };
 7720
 7721        match status {
 7722            Status::Connecting
 7723            | Status::Authenticating
 7724            | Status::Authenticated
 7725            | Status::Reconnecting
 7726            | Status::Reauthenticating
 7727            | Status::Reauthenticated => continue,
 7728            Status::Connected { .. } => break 'outer,
 7729            Status::SignedOut | Status::AuthenticationError => {
 7730                return Err(ErrorCode::SignedOut.into());
 7731            }
 7732            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7733            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7734                return Err(ErrorCode::Disconnected.into());
 7735            }
 7736        }
 7737    }
 7738
 7739    let room = active_call
 7740        .update(cx, |active_call, cx| {
 7741            active_call.join_channel(channel_id, cx)
 7742        })?
 7743        .await?;
 7744
 7745    let Some(room) = room else {
 7746        return anyhow::Ok(true);
 7747    };
 7748
 7749    room.update(cx, |room, _| room.room_update_completed())?
 7750        .await;
 7751
 7752    let task = room.update(cx, |room, cx| {
 7753        if let Some((project, host)) = room.most_active_project(cx) {
 7754            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7755        }
 7756
 7757        // If you are the first to join a channel, see if you should share your project.
 7758        if room.remote_participants().is_empty()
 7759            && !room.local_participant_is_guest()
 7760            && let Some(workspace) = requesting_window
 7761        {
 7762            let project = workspace.update(cx, |workspace, _, cx| {
 7763                let project = workspace.project.read(cx);
 7764
 7765                if !CallSettings::get_global(cx).share_on_join {
 7766                    return None;
 7767                }
 7768
 7769                if (project.is_local() || project.is_via_remote_server())
 7770                    && project.visible_worktrees(cx).any(|tree| {
 7771                        tree.read(cx)
 7772                            .root_entry()
 7773                            .is_some_and(|entry| entry.is_dir())
 7774                    })
 7775                {
 7776                    Some(workspace.project.clone())
 7777                } else {
 7778                    None
 7779                }
 7780            });
 7781            if let Ok(Some(project)) = project {
 7782                return Some(cx.spawn(async move |room, cx| {
 7783                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7784                        .await?;
 7785                    Ok(())
 7786                }));
 7787            }
 7788        }
 7789
 7790        None
 7791    })?;
 7792    if let Some(task) = task {
 7793        task.await?;
 7794        return anyhow::Ok(true);
 7795    }
 7796    anyhow::Ok(false)
 7797}
 7798
 7799pub fn join_channel(
 7800    channel_id: ChannelId,
 7801    app_state: Arc<AppState>,
 7802    requesting_window: Option<WindowHandle<Workspace>>,
 7803    cx: &mut App,
 7804) -> Task<Result<()>> {
 7805    let active_call = ActiveCall::global(cx);
 7806    cx.spawn(async move |cx| {
 7807        let result =
 7808            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7809                .await;
 7810
 7811        // join channel succeeded, and opened a window
 7812        if matches!(result, Ok(true)) {
 7813            return anyhow::Ok(());
 7814        }
 7815
 7816        // find an existing workspace to focus and show call controls
 7817        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7818        if active_window.is_none() {
 7819            // no open workspaces, make one to show the error in (blergh)
 7820            let (window_handle, _) = cx
 7821                .update(|cx| {
 7822                    Workspace::new_local(
 7823                        vec![],
 7824                        app_state.clone(),
 7825                        requesting_window,
 7826                        None,
 7827                        None,
 7828                        cx,
 7829                    )
 7830                })?
 7831                .await?;
 7832
 7833            if result.is_ok() {
 7834                cx.update(|cx| {
 7835                    cx.dispatch_action(&OpenChannelNotes);
 7836                })
 7837                .log_err();
 7838            }
 7839
 7840            active_window = Some(window_handle);
 7841        }
 7842
 7843        if let Err(err) = result {
 7844            log::error!("failed to join channel: {}", err);
 7845            if let Some(active_window) = active_window {
 7846                active_window
 7847                    .update(cx, |_, window, cx| {
 7848                        let detail: SharedString = match err.error_code() {
 7849                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7850                            ErrorCode::UpgradeRequired => concat!(
 7851                                "Your are running an unsupported version of Zed. ",
 7852                                "Please update to continue."
 7853                            )
 7854                            .into(),
 7855                            ErrorCode::NoSuchChannel => concat!(
 7856                                "No matching channel was found. ",
 7857                                "Please check the link and try again."
 7858                            )
 7859                            .into(),
 7860                            ErrorCode::Forbidden => concat!(
 7861                                "This channel is private, and you do not have access. ",
 7862                                "Please ask someone to add you and try again."
 7863                            )
 7864                            .into(),
 7865                            ErrorCode::Disconnected => {
 7866                                "Please check your internet connection and try again.".into()
 7867                            }
 7868                            _ => format!("{}\n\nPlease try again.", err).into(),
 7869                        };
 7870                        window.prompt(
 7871                            PromptLevel::Critical,
 7872                            "Failed to join channel",
 7873                            Some(&detail),
 7874                            &["Ok"],
 7875                            cx,
 7876                        )
 7877                    })?
 7878                    .await
 7879                    .ok();
 7880            }
 7881        }
 7882
 7883        // return ok, we showed the error to the user.
 7884        anyhow::Ok(())
 7885    })
 7886}
 7887
 7888pub async fn get_any_active_workspace(
 7889    app_state: Arc<AppState>,
 7890    mut cx: AsyncApp,
 7891) -> anyhow::Result<WindowHandle<Workspace>> {
 7892    // find an existing workspace to focus and show call controls
 7893    let active_window = activate_any_workspace_window(&mut cx);
 7894    if active_window.is_none() {
 7895        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7896            .await?;
 7897    }
 7898    activate_any_workspace_window(&mut cx).context("could not open zed")
 7899}
 7900
 7901fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7902    cx.update(|cx| {
 7903        if let Some(workspace_window) = cx
 7904            .active_window()
 7905            .and_then(|window| window.downcast::<Workspace>())
 7906        {
 7907            return Some(workspace_window);
 7908        }
 7909
 7910        for window in cx.windows() {
 7911            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7912                workspace_window
 7913                    .update(cx, |_, window, _| window.activate_window())
 7914                    .ok();
 7915                return Some(workspace_window);
 7916            }
 7917        }
 7918        None
 7919    })
 7920    .ok()
 7921    .flatten()
 7922}
 7923
 7924pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7925    cx.windows()
 7926        .into_iter()
 7927        .filter_map(|window| window.downcast::<Workspace>())
 7928        .filter(|workspace| {
 7929            workspace
 7930                .read(cx)
 7931                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7932        })
 7933        .collect()
 7934}
 7935
 7936#[derive(Default)]
 7937pub struct OpenOptions {
 7938    pub visible: Option<OpenVisible>,
 7939    pub focus: Option<bool>,
 7940    pub open_new_workspace: Option<bool>,
 7941    pub prefer_focused_window: bool,
 7942    pub replace_window: Option<WindowHandle<Workspace>>,
 7943    pub env: Option<HashMap<String, String>>,
 7944}
 7945
 7946#[allow(clippy::type_complexity)]
 7947pub fn open_paths(
 7948    abs_paths: &[PathBuf],
 7949    app_state: Arc<AppState>,
 7950    open_options: OpenOptions,
 7951    cx: &mut App,
 7952) -> Task<
 7953    anyhow::Result<(
 7954        WindowHandle<Workspace>,
 7955        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7956    )>,
 7957> {
 7958    let abs_paths = abs_paths.to_vec();
 7959    let mut existing = None;
 7960    let mut best_match = None;
 7961    let mut open_visible = OpenVisible::All;
 7962    #[cfg(target_os = "windows")]
 7963    let wsl_path = abs_paths
 7964        .iter()
 7965        .find_map(|p| util::paths::WslPath::from_path(p));
 7966
 7967    cx.spawn(async move |cx| {
 7968        if open_options.open_new_workspace != Some(true) {
 7969            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7970            let all_metadatas = futures::future::join_all(all_paths)
 7971                .await
 7972                .into_iter()
 7973                .filter_map(|result| result.ok().flatten())
 7974                .collect::<Vec<_>>();
 7975
 7976            cx.update(|cx| {
 7977                for window in local_workspace_windows(cx) {
 7978                    if let Ok(workspace) = window.read(cx) {
 7979                        let m = workspace.project.read(cx).visibility_for_paths(
 7980                            &abs_paths,
 7981                            &all_metadatas,
 7982                            open_options.open_new_workspace == None,
 7983                            cx,
 7984                        );
 7985                        if m > best_match {
 7986                            existing = Some(window);
 7987                            best_match = m;
 7988                        } else if best_match.is_none()
 7989                            && open_options.open_new_workspace == Some(false)
 7990                        {
 7991                            existing = Some(window)
 7992                        }
 7993                    }
 7994                }
 7995            })?;
 7996
 7997            if open_options.open_new_workspace.is_none()
 7998                && (existing.is_none() || open_options.prefer_focused_window)
 7999                && all_metadatas.iter().all(|file| !file.is_dir)
 8000            {
 8001                cx.update(|cx| {
 8002                    if let Some(window) = cx
 8003                        .active_window()
 8004                        .and_then(|window| window.downcast::<Workspace>())
 8005                        && let Ok(workspace) = window.read(cx)
 8006                    {
 8007                        let project = workspace.project().read(cx);
 8008                        if project.is_local() && !project.is_via_collab() {
 8009                            existing = Some(window);
 8010                            open_visible = OpenVisible::None;
 8011                            return;
 8012                        }
 8013                    }
 8014                    for window in local_workspace_windows(cx) {
 8015                        if let Ok(workspace) = window.read(cx) {
 8016                            let project = workspace.project().read(cx);
 8017                            if project.is_via_collab() {
 8018                                continue;
 8019                            }
 8020                            existing = Some(window);
 8021                            open_visible = OpenVisible::None;
 8022                            break;
 8023                        }
 8024                    }
 8025                })?;
 8026            }
 8027        }
 8028
 8029        let result = if let Some(existing) = existing {
 8030            let open_task = existing
 8031                .update(cx, |workspace, window, cx| {
 8032                    window.activate_window();
 8033                    workspace.open_paths(
 8034                        abs_paths,
 8035                        OpenOptions {
 8036                            visible: Some(open_visible),
 8037                            ..Default::default()
 8038                        },
 8039                        None,
 8040                        window,
 8041                        cx,
 8042                    )
 8043                })?
 8044                .await;
 8045
 8046            _ = existing.update(cx, |workspace, _, cx| {
 8047                for item in open_task.iter().flatten() {
 8048                    if let Err(e) = item {
 8049                        workspace.show_error(&e, cx);
 8050                    }
 8051                }
 8052            });
 8053
 8054            Ok((existing, open_task))
 8055        } else {
 8056            cx.update(move |cx| {
 8057                Workspace::new_local(
 8058                    abs_paths,
 8059                    app_state.clone(),
 8060                    open_options.replace_window,
 8061                    open_options.env,
 8062                    None,
 8063                    cx,
 8064                )
 8065            })?
 8066            .await
 8067        };
 8068
 8069        #[cfg(target_os = "windows")]
 8070        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8071            && let Ok((workspace, _)) = &result
 8072        {
 8073            workspace
 8074                .update(cx, move |workspace, _window, cx| {
 8075                    struct OpenInWsl;
 8076                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8077                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8078                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8079                        cx.new(move |cx| {
 8080                            MessageNotification::new(msg, cx)
 8081                                .primary_message("Open in WSL")
 8082                                .primary_icon(IconName::FolderOpen)
 8083                                .primary_on_click(move |window, cx| {
 8084                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8085                                            distro: remote::WslConnectionOptions {
 8086                                                    distro_name: distro.clone(),
 8087                                                user: None,
 8088                                            },
 8089                                            paths: vec![path.clone().into()],
 8090                                        }), cx)
 8091                                })
 8092                        })
 8093                    });
 8094                })
 8095                .unwrap();
 8096        };
 8097        result
 8098    })
 8099}
 8100
 8101pub fn open_new(
 8102    open_options: OpenOptions,
 8103    app_state: Arc<AppState>,
 8104    cx: &mut App,
 8105    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8106) -> Task<anyhow::Result<()>> {
 8107    let task = Workspace::new_local(
 8108        Vec::new(),
 8109        app_state,
 8110        None,
 8111        open_options.env,
 8112        Some(Box::new(init)),
 8113        cx,
 8114    );
 8115    cx.spawn(async move |_cx| {
 8116        let (_workspace, _opened_paths) = task.await?;
 8117        // Init callback is called synchronously during workspace creation
 8118        Ok(())
 8119    })
 8120}
 8121
 8122pub fn create_and_open_local_file(
 8123    path: &'static Path,
 8124    window: &mut Window,
 8125    cx: &mut Context<Workspace>,
 8126    default_content: impl 'static + Send + FnOnce() -> Rope,
 8127) -> Task<Result<Box<dyn ItemHandle>>> {
 8128    cx.spawn_in(window, async move |workspace, cx| {
 8129        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8130        if !fs.is_file(path).await {
 8131            fs.create_file(path, Default::default()).await?;
 8132            fs.save(path, &default_content(), Default::default())
 8133                .await?;
 8134        }
 8135
 8136        let mut items = workspace
 8137            .update_in(cx, |workspace, window, cx| {
 8138                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8139                    workspace.open_paths(
 8140                        vec![path.to_path_buf()],
 8141                        OpenOptions {
 8142                            visible: Some(OpenVisible::None),
 8143                            ..Default::default()
 8144                        },
 8145                        None,
 8146                        window,
 8147                        cx,
 8148                    )
 8149                })
 8150            })?
 8151            .await?
 8152            .await;
 8153
 8154        let item = items.pop().flatten();
 8155        item.with_context(|| format!("path {path:?} is not a file"))?
 8156    })
 8157}
 8158
 8159pub fn open_remote_project_with_new_connection(
 8160    window: WindowHandle<Workspace>,
 8161    remote_connection: Arc<dyn RemoteConnection>,
 8162    cancel_rx: oneshot::Receiver<()>,
 8163    delegate: Arc<dyn RemoteClientDelegate>,
 8164    app_state: Arc<AppState>,
 8165    paths: Vec<PathBuf>,
 8166    cx: &mut App,
 8167) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8168    cx.spawn(async move |cx| {
 8169        let (workspace_id, serialized_workspace) =
 8170            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8171                .await?;
 8172
 8173        let session = match cx
 8174            .update(|cx| {
 8175                remote::RemoteClient::new(
 8176                    ConnectionIdentifier::Workspace(workspace_id.0),
 8177                    remote_connection,
 8178                    cancel_rx,
 8179                    delegate,
 8180                    cx,
 8181                )
 8182            })?
 8183            .await?
 8184        {
 8185            Some(result) => result,
 8186            None => return Ok(Vec::new()),
 8187        };
 8188
 8189        let project = cx.update(|cx| {
 8190            project::Project::remote(
 8191                session,
 8192                app_state.client.clone(),
 8193                app_state.node_runtime.clone(),
 8194                app_state.user_store.clone(),
 8195                app_state.languages.clone(),
 8196                app_state.fs.clone(),
 8197                true,
 8198                cx,
 8199            )
 8200        })?;
 8201
 8202        open_remote_project_inner(
 8203            project,
 8204            paths,
 8205            workspace_id,
 8206            serialized_workspace,
 8207            app_state,
 8208            window,
 8209            cx,
 8210        )
 8211        .await
 8212    })
 8213}
 8214
 8215pub fn open_remote_project_with_existing_connection(
 8216    connection_options: RemoteConnectionOptions,
 8217    project: Entity<Project>,
 8218    paths: Vec<PathBuf>,
 8219    app_state: Arc<AppState>,
 8220    window: WindowHandle<Workspace>,
 8221    cx: &mut AsyncApp,
 8222) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8223    cx.spawn(async move |cx| {
 8224        let (workspace_id, serialized_workspace) =
 8225            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8226
 8227        open_remote_project_inner(
 8228            project,
 8229            paths,
 8230            workspace_id,
 8231            serialized_workspace,
 8232            app_state,
 8233            window,
 8234            cx,
 8235        )
 8236        .await
 8237    })
 8238}
 8239
 8240async fn open_remote_project_inner(
 8241    project: Entity<Project>,
 8242    paths: Vec<PathBuf>,
 8243    workspace_id: WorkspaceId,
 8244    serialized_workspace: Option<SerializedWorkspace>,
 8245    app_state: Arc<AppState>,
 8246    window: WindowHandle<Workspace>,
 8247    cx: &mut AsyncApp,
 8248) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8249    let toolchains = DB.toolchains(workspace_id).await?;
 8250    for (toolchain, worktree_path, path) in toolchains {
 8251        project
 8252            .update(cx, |this, cx| {
 8253                let Some(worktree_id) =
 8254                    this.find_worktree(&worktree_path, cx)
 8255                        .and_then(|(worktree, rel_path)| {
 8256                            if rel_path.is_empty() {
 8257                                Some(worktree.read(cx).id())
 8258                            } else {
 8259                                None
 8260                            }
 8261                        })
 8262                else {
 8263                    return Task::ready(None);
 8264                };
 8265
 8266                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8267            })?
 8268            .await;
 8269    }
 8270    let mut project_paths_to_open = vec![];
 8271    let mut project_path_errors = vec![];
 8272
 8273    for path in paths {
 8274        let result = cx
 8275            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8276            .await;
 8277        match result {
 8278            Ok((_, project_path)) => {
 8279                project_paths_to_open.push((path.clone(), Some(project_path)));
 8280            }
 8281            Err(error) => {
 8282                project_path_errors.push(error);
 8283            }
 8284        };
 8285    }
 8286
 8287    if project_paths_to_open.is_empty() {
 8288        return Err(project_path_errors.pop().context("no paths given")?);
 8289    }
 8290
 8291    if let Some(detach_session_task) = window
 8292        .update(cx, |_workspace, window, cx| {
 8293            cx.spawn_in(window, async move |this, cx| {
 8294                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8295            })
 8296        })
 8297        .ok()
 8298    {
 8299        detach_session_task.await.ok();
 8300    }
 8301
 8302    cx.update_window(window.into(), |_, window, cx| {
 8303        window.replace_root(cx, |window, cx| {
 8304            telemetry::event!("SSH Project Opened");
 8305
 8306            let mut workspace =
 8307                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8308            workspace.update_history(cx);
 8309
 8310            if let Some(ref serialized) = serialized_workspace {
 8311                workspace.centered_layout = serialized.centered_layout;
 8312            }
 8313
 8314            workspace
 8315        });
 8316    })?;
 8317
 8318    let items = window
 8319        .update(cx, |_, window, cx| {
 8320            window.activate_window();
 8321            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8322        })?
 8323        .await?;
 8324
 8325    window.update(cx, |workspace, _, cx| {
 8326        for error in project_path_errors {
 8327            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8328                if let Some(path) = error.error_tag("path") {
 8329                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8330                }
 8331            } else {
 8332                workspace.show_error(&error, cx)
 8333            }
 8334        }
 8335    })?;
 8336
 8337    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8338}
 8339
 8340fn deserialize_remote_project(
 8341    connection_options: RemoteConnectionOptions,
 8342    paths: Vec<PathBuf>,
 8343    cx: &AsyncApp,
 8344) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8345    cx.background_spawn(async move {
 8346        let remote_connection_id = persistence::DB
 8347            .get_or_create_remote_connection(connection_options)
 8348            .await?;
 8349
 8350        let serialized_workspace =
 8351            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8352
 8353        let workspace_id = if let Some(workspace_id) =
 8354            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8355        {
 8356            workspace_id
 8357        } else {
 8358            persistence::DB.next_id().await?
 8359        };
 8360
 8361        Ok((workspace_id, serialized_workspace))
 8362    })
 8363}
 8364
 8365pub fn join_in_room_project(
 8366    project_id: u64,
 8367    follow_user_id: u64,
 8368    app_state: Arc<AppState>,
 8369    cx: &mut App,
 8370) -> Task<Result<()>> {
 8371    let windows = cx.windows();
 8372    cx.spawn(async move |cx| {
 8373        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8374            window_handle
 8375                .downcast::<Workspace>()
 8376                .and_then(|window_handle| {
 8377                    window_handle
 8378                        .update(cx, |workspace, _window, cx| {
 8379                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8380                                Some(window_handle)
 8381                            } else {
 8382                                None
 8383                            }
 8384                        })
 8385                        .unwrap_or(None)
 8386                })
 8387        });
 8388
 8389        let workspace = if let Some(existing_workspace) = existing_workspace {
 8390            existing_workspace
 8391        } else {
 8392            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8393            let room = active_call
 8394                .read_with(cx, |call, _| call.room().cloned())?
 8395                .context("not in a call")?;
 8396            let project = room
 8397                .update(cx, |room, cx| {
 8398                    room.join_project(
 8399                        project_id,
 8400                        app_state.languages.clone(),
 8401                        app_state.fs.clone(),
 8402                        cx,
 8403                    )
 8404                })?
 8405                .await?;
 8406
 8407            let window_bounds_override = window_bounds_env_override();
 8408            cx.update(|cx| {
 8409                let mut options = (app_state.build_window_options)(None, cx);
 8410                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8411                cx.open_window(options, |window, cx| {
 8412                    cx.new(|cx| {
 8413                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8414                    })
 8415                })
 8416            })??
 8417        };
 8418
 8419        workspace.update(cx, |workspace, window, cx| {
 8420            cx.activate(true);
 8421            window.activate_window();
 8422
 8423            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8424                let follow_peer_id = room
 8425                    .read(cx)
 8426                    .remote_participants()
 8427                    .iter()
 8428                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8429                    .map(|(_, p)| p.peer_id)
 8430                    .or_else(|| {
 8431                        // If we couldn't follow the given user, follow the host instead.
 8432                        let collaborator = workspace
 8433                            .project()
 8434                            .read(cx)
 8435                            .collaborators()
 8436                            .values()
 8437                            .find(|collaborator| collaborator.is_host)?;
 8438                        Some(collaborator.peer_id)
 8439                    });
 8440
 8441                if let Some(follow_peer_id) = follow_peer_id {
 8442                    workspace.follow(follow_peer_id, window, cx);
 8443                }
 8444            }
 8445        })?;
 8446
 8447        anyhow::Ok(())
 8448    })
 8449}
 8450
 8451pub fn reload(cx: &mut App) {
 8452    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8453    let mut workspace_windows = cx
 8454        .windows()
 8455        .into_iter()
 8456        .filter_map(|window| window.downcast::<Workspace>())
 8457        .collect::<Vec<_>>();
 8458
 8459    // If multiple windows have unsaved changes, and need a save prompt,
 8460    // prompt in the active window before switching to a different window.
 8461    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8462
 8463    let mut prompt = None;
 8464    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8465        prompt = window
 8466            .update(cx, |_, window, cx| {
 8467                window.prompt(
 8468                    PromptLevel::Info,
 8469                    "Are you sure you want to restart?",
 8470                    None,
 8471                    &["Restart", "Cancel"],
 8472                    cx,
 8473                )
 8474            })
 8475            .ok();
 8476    }
 8477
 8478    cx.spawn(async move |cx| {
 8479        if let Some(prompt) = prompt {
 8480            let answer = prompt.await?;
 8481            if answer != 0 {
 8482                return Ok(());
 8483            }
 8484        }
 8485
 8486        // If the user cancels any save prompt, then keep the app open.
 8487        for window in workspace_windows {
 8488            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8489                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8490            }) && !should_close.await?
 8491            {
 8492                return Ok(());
 8493            }
 8494        }
 8495        cx.update(|cx| cx.restart())
 8496    })
 8497    .detach_and_log_err(cx);
 8498}
 8499
 8500fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8501    let mut parts = value.split(',');
 8502    let x: usize = parts.next()?.parse().ok()?;
 8503    let y: usize = parts.next()?.parse().ok()?;
 8504    Some(point(px(x as f32), px(y as f32)))
 8505}
 8506
 8507fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8508    let mut parts = value.split(',');
 8509    let width: usize = parts.next()?.parse().ok()?;
 8510    let height: usize = parts.next()?.parse().ok()?;
 8511    Some(size(px(width as f32), px(height as f32)))
 8512}
 8513
 8514/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8515pub fn client_side_decorations(
 8516    element: impl IntoElement,
 8517    window: &mut Window,
 8518    cx: &mut App,
 8519) -> Stateful<Div> {
 8520    const BORDER_SIZE: Pixels = px(1.0);
 8521    let decorations = window.window_decorations();
 8522
 8523    match decorations {
 8524        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8525        Decorations::Server => window.set_client_inset(px(0.0)),
 8526    }
 8527
 8528    struct GlobalResizeEdge(ResizeEdge);
 8529    impl Global for GlobalResizeEdge {}
 8530
 8531    div()
 8532        .id("window-backdrop")
 8533        .bg(transparent_black())
 8534        .map(|div| match decorations {
 8535            Decorations::Server => div,
 8536            Decorations::Client { tiling, .. } => div
 8537                .when(!(tiling.top || tiling.right), |div| {
 8538                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8539                })
 8540                .when(!(tiling.top || tiling.left), |div| {
 8541                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8542                })
 8543                .when(!(tiling.bottom || tiling.right), |div| {
 8544                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8545                })
 8546                .when(!(tiling.bottom || tiling.left), |div| {
 8547                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8548                })
 8549                .when(!tiling.top, |div| {
 8550                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8551                })
 8552                .when(!tiling.bottom, |div| {
 8553                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8554                })
 8555                .when(!tiling.left, |div| {
 8556                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8557                })
 8558                .when(!tiling.right, |div| {
 8559                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8560                })
 8561                .on_mouse_move(move |e, window, cx| {
 8562                    let size = window.window_bounds().get_bounds().size;
 8563                    let pos = e.position;
 8564
 8565                    let new_edge =
 8566                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8567
 8568                    let edge = cx.try_global::<GlobalResizeEdge>();
 8569                    if new_edge != edge.map(|edge| edge.0) {
 8570                        window
 8571                            .window_handle()
 8572                            .update(cx, |workspace, _, cx| {
 8573                                cx.notify(workspace.entity_id());
 8574                            })
 8575                            .ok();
 8576                    }
 8577                })
 8578                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8579                    let size = window.window_bounds().get_bounds().size;
 8580                    let pos = e.position;
 8581
 8582                    let edge = match resize_edge(
 8583                        pos,
 8584                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8585                        size,
 8586                        tiling,
 8587                    ) {
 8588                        Some(value) => value,
 8589                        None => return,
 8590                    };
 8591
 8592                    window.start_window_resize(edge);
 8593                }),
 8594        })
 8595        .size_full()
 8596        .child(
 8597            div()
 8598                .cursor(CursorStyle::Arrow)
 8599                .map(|div| match decorations {
 8600                    Decorations::Server => div,
 8601                    Decorations::Client { tiling } => div
 8602                        .border_color(cx.theme().colors().border)
 8603                        .when(!(tiling.top || tiling.right), |div| {
 8604                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8605                        })
 8606                        .when(!(tiling.top || tiling.left), |div| {
 8607                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8608                        })
 8609                        .when(!(tiling.bottom || tiling.right), |div| {
 8610                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8611                        })
 8612                        .when(!(tiling.bottom || tiling.left), |div| {
 8613                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8614                        })
 8615                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8616                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8617                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8618                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8619                        .when(!tiling.is_tiled(), |div| {
 8620                            div.shadow(vec![gpui::BoxShadow {
 8621                                color: Hsla {
 8622                                    h: 0.,
 8623                                    s: 0.,
 8624                                    l: 0.,
 8625                                    a: 0.4,
 8626                                },
 8627                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8628                                spread_radius: px(0.),
 8629                                offset: point(px(0.0), px(0.0)),
 8630                            }])
 8631                        }),
 8632                })
 8633                .on_mouse_move(|_e, _, cx| {
 8634                    cx.stop_propagation();
 8635                })
 8636                .size_full()
 8637                .child(element),
 8638        )
 8639        .map(|div| match decorations {
 8640            Decorations::Server => div,
 8641            Decorations::Client { tiling, .. } => div.child(
 8642                canvas(
 8643                    |_bounds, window, _| {
 8644                        window.insert_hitbox(
 8645                            Bounds::new(
 8646                                point(px(0.0), px(0.0)),
 8647                                window.window_bounds().get_bounds().size,
 8648                            ),
 8649                            HitboxBehavior::Normal,
 8650                        )
 8651                    },
 8652                    move |_bounds, hitbox, window, cx| {
 8653                        let mouse = window.mouse_position();
 8654                        let size = window.window_bounds().get_bounds().size;
 8655                        let Some(edge) =
 8656                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8657                        else {
 8658                            return;
 8659                        };
 8660                        cx.set_global(GlobalResizeEdge(edge));
 8661                        window.set_cursor_style(
 8662                            match edge {
 8663                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8664                                ResizeEdge::Left | ResizeEdge::Right => {
 8665                                    CursorStyle::ResizeLeftRight
 8666                                }
 8667                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8668                                    CursorStyle::ResizeUpLeftDownRight
 8669                                }
 8670                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8671                                    CursorStyle::ResizeUpRightDownLeft
 8672                                }
 8673                            },
 8674                            &hitbox,
 8675                        );
 8676                    },
 8677                )
 8678                .size_full()
 8679                .absolute(),
 8680            ),
 8681        })
 8682}
 8683
 8684fn resize_edge(
 8685    pos: Point<Pixels>,
 8686    shadow_size: Pixels,
 8687    window_size: Size<Pixels>,
 8688    tiling: Tiling,
 8689) -> Option<ResizeEdge> {
 8690    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8691    if bounds.contains(&pos) {
 8692        return None;
 8693    }
 8694
 8695    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8696    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8697    if !tiling.top && top_left_bounds.contains(&pos) {
 8698        return Some(ResizeEdge::TopLeft);
 8699    }
 8700
 8701    let top_right_bounds = Bounds::new(
 8702        Point::new(window_size.width - corner_size.width, px(0.)),
 8703        corner_size,
 8704    );
 8705    if !tiling.top && top_right_bounds.contains(&pos) {
 8706        return Some(ResizeEdge::TopRight);
 8707    }
 8708
 8709    let bottom_left_bounds = Bounds::new(
 8710        Point::new(px(0.), window_size.height - corner_size.height),
 8711        corner_size,
 8712    );
 8713    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8714        return Some(ResizeEdge::BottomLeft);
 8715    }
 8716
 8717    let bottom_right_bounds = Bounds::new(
 8718        Point::new(
 8719            window_size.width - corner_size.width,
 8720            window_size.height - corner_size.height,
 8721        ),
 8722        corner_size,
 8723    );
 8724    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8725        return Some(ResizeEdge::BottomRight);
 8726    }
 8727
 8728    if !tiling.top && pos.y < shadow_size {
 8729        Some(ResizeEdge::Top)
 8730    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8731        Some(ResizeEdge::Bottom)
 8732    } else if !tiling.left && pos.x < shadow_size {
 8733        Some(ResizeEdge::Left)
 8734    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8735        Some(ResizeEdge::Right)
 8736    } else {
 8737        None
 8738    }
 8739}
 8740
 8741fn join_pane_into_active(
 8742    active_pane: &Entity<Pane>,
 8743    pane: &Entity<Pane>,
 8744    window: &mut Window,
 8745    cx: &mut App,
 8746) {
 8747    if pane == active_pane {
 8748    } else if pane.read(cx).items_len() == 0 {
 8749        pane.update(cx, |_, cx| {
 8750            cx.emit(pane::Event::Remove {
 8751                focus_on_pane: None,
 8752            });
 8753        })
 8754    } else {
 8755        move_all_items(pane, active_pane, window, cx);
 8756    }
 8757}
 8758
 8759fn move_all_items(
 8760    from_pane: &Entity<Pane>,
 8761    to_pane: &Entity<Pane>,
 8762    window: &mut Window,
 8763    cx: &mut App,
 8764) {
 8765    let destination_is_different = from_pane != to_pane;
 8766    let mut moved_items = 0;
 8767    for (item_ix, item_handle) in from_pane
 8768        .read(cx)
 8769        .items()
 8770        .enumerate()
 8771        .map(|(ix, item)| (ix, item.clone()))
 8772        .collect::<Vec<_>>()
 8773    {
 8774        let ix = item_ix - moved_items;
 8775        if destination_is_different {
 8776            // Close item from previous pane
 8777            from_pane.update(cx, |source, cx| {
 8778                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8779            });
 8780            moved_items += 1;
 8781        }
 8782
 8783        // This automatically removes duplicate items in the pane
 8784        to_pane.update(cx, |destination, cx| {
 8785            destination.add_item(item_handle, true, true, None, window, cx);
 8786            window.focus(&destination.focus_handle(cx), cx)
 8787        });
 8788    }
 8789}
 8790
 8791pub fn move_item(
 8792    source: &Entity<Pane>,
 8793    destination: &Entity<Pane>,
 8794    item_id_to_move: EntityId,
 8795    destination_index: usize,
 8796    activate: bool,
 8797    window: &mut Window,
 8798    cx: &mut App,
 8799) {
 8800    let Some((item_ix, item_handle)) = source
 8801        .read(cx)
 8802        .items()
 8803        .enumerate()
 8804        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8805        .map(|(ix, item)| (ix, item.clone()))
 8806    else {
 8807        // Tab was closed during drag
 8808        return;
 8809    };
 8810
 8811    if source != destination {
 8812        // Close item from previous pane
 8813        source.update(cx, |source, cx| {
 8814            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8815        });
 8816    }
 8817
 8818    // This automatically removes duplicate items in the pane
 8819    destination.update(cx, |destination, cx| {
 8820        destination.add_item_inner(
 8821            item_handle,
 8822            activate,
 8823            activate,
 8824            activate,
 8825            Some(destination_index),
 8826            window,
 8827            cx,
 8828        );
 8829        if activate {
 8830            window.focus(&destination.focus_handle(cx), cx)
 8831        }
 8832    });
 8833}
 8834
 8835pub fn move_active_item(
 8836    source: &Entity<Pane>,
 8837    destination: &Entity<Pane>,
 8838    focus_destination: bool,
 8839    close_if_empty: bool,
 8840    window: &mut Window,
 8841    cx: &mut App,
 8842) {
 8843    if source == destination {
 8844        return;
 8845    }
 8846    let Some(active_item) = source.read(cx).active_item() else {
 8847        return;
 8848    };
 8849    source.update(cx, |source_pane, cx| {
 8850        let item_id = active_item.item_id();
 8851        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8852        destination.update(cx, |target_pane, cx| {
 8853            target_pane.add_item(
 8854                active_item,
 8855                focus_destination,
 8856                focus_destination,
 8857                Some(target_pane.items_len()),
 8858                window,
 8859                cx,
 8860            );
 8861        });
 8862    });
 8863}
 8864
 8865pub fn clone_active_item(
 8866    workspace_id: Option<WorkspaceId>,
 8867    source: &Entity<Pane>,
 8868    destination: &Entity<Pane>,
 8869    focus_destination: bool,
 8870    window: &mut Window,
 8871    cx: &mut App,
 8872) {
 8873    if source == destination {
 8874        return;
 8875    }
 8876    let Some(active_item) = source.read(cx).active_item() else {
 8877        return;
 8878    };
 8879    if !active_item.can_split(cx) {
 8880        return;
 8881    }
 8882    let destination = destination.downgrade();
 8883    let task = active_item.clone_on_split(workspace_id, window, cx);
 8884    window
 8885        .spawn(cx, async move |cx| {
 8886            let Some(clone) = task.await else {
 8887                return;
 8888            };
 8889            destination
 8890                .update_in(cx, |target_pane, window, cx| {
 8891                    target_pane.add_item(
 8892                        clone,
 8893                        focus_destination,
 8894                        focus_destination,
 8895                        Some(target_pane.items_len()),
 8896                        window,
 8897                        cx,
 8898                    );
 8899                })
 8900                .log_err();
 8901        })
 8902        .detach();
 8903}
 8904
 8905#[derive(Debug)]
 8906pub struct WorkspacePosition {
 8907    pub window_bounds: Option<WindowBounds>,
 8908    pub display: Option<Uuid>,
 8909    pub centered_layout: bool,
 8910}
 8911
 8912pub fn remote_workspace_position_from_db(
 8913    connection_options: RemoteConnectionOptions,
 8914    paths_to_open: &[PathBuf],
 8915    cx: &App,
 8916) -> Task<Result<WorkspacePosition>> {
 8917    let paths = paths_to_open.to_vec();
 8918
 8919    cx.background_spawn(async move {
 8920        let remote_connection_id = persistence::DB
 8921            .get_or_create_remote_connection(connection_options)
 8922            .await
 8923            .context("fetching serialized ssh project")?;
 8924        let serialized_workspace =
 8925            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8926
 8927        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8928            (Some(WindowBounds::Windowed(bounds)), None)
 8929        } else {
 8930            let restorable_bounds = serialized_workspace
 8931                .as_ref()
 8932                .and_then(|workspace| {
 8933                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8934                })
 8935                .or_else(|| persistence::read_default_window_bounds());
 8936
 8937            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8938                (Some(serialized_bounds), Some(serialized_display))
 8939            } else {
 8940                (None, None)
 8941            }
 8942        };
 8943
 8944        let centered_layout = serialized_workspace
 8945            .as_ref()
 8946            .map(|w| w.centered_layout)
 8947            .unwrap_or(false);
 8948
 8949        Ok(WorkspacePosition {
 8950            window_bounds,
 8951            display,
 8952            centered_layout,
 8953        })
 8954    })
 8955}
 8956
 8957pub fn with_active_or_new_workspace(
 8958    cx: &mut App,
 8959    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8960) {
 8961    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8962        Some(workspace) => {
 8963            cx.defer(move |cx| {
 8964                workspace
 8965                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8966                    .log_err();
 8967            });
 8968        }
 8969        None => {
 8970            let app_state = AppState::global(cx);
 8971            if let Some(app_state) = app_state.upgrade() {
 8972                open_new(
 8973                    OpenOptions::default(),
 8974                    app_state,
 8975                    cx,
 8976                    move |workspace, window, cx| f(workspace, window, cx),
 8977                )
 8978                .detach_and_log_err(cx);
 8979            }
 8980        }
 8981    }
 8982}
 8983
 8984#[cfg(test)]
 8985mod tests {
 8986    use std::{cell::RefCell, rc::Rc};
 8987
 8988    use super::*;
 8989    use crate::{
 8990        dock::{PanelEvent, test::TestPanel},
 8991        item::{
 8992            ItemBufferKind, ItemEvent,
 8993            test::{TestItem, TestProjectItem},
 8994        },
 8995    };
 8996    use fs::FakeFs;
 8997    use gpui::{
 8998        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8999        UpdateGlobal, VisualTestContext, px,
 9000    };
 9001    use project::{Project, ProjectEntryId};
 9002    use serde_json::json;
 9003    use settings::SettingsStore;
 9004    use util::rel_path::rel_path;
 9005
 9006    #[gpui::test]
 9007    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9008        init_test(cx);
 9009
 9010        let fs = FakeFs::new(cx.executor());
 9011        let project = Project::test(fs, [], cx).await;
 9012        let (workspace, cx) =
 9013            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9014
 9015        // Adding an item with no ambiguity renders the tab without detail.
 9016        let item1 = cx.new(|cx| {
 9017            let mut item = TestItem::new(cx);
 9018            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9019            item
 9020        });
 9021        workspace.update_in(cx, |workspace, window, cx| {
 9022            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9023        });
 9024        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9025
 9026        // Adding an item that creates ambiguity increases the level of detail on
 9027        // both tabs.
 9028        let item2 = cx.new_window_entity(|_window, cx| {
 9029            let mut item = TestItem::new(cx);
 9030            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9031            item
 9032        });
 9033        workspace.update_in(cx, |workspace, window, cx| {
 9034            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9035        });
 9036        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9037        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9038
 9039        // Adding an item that creates ambiguity increases the level of detail only
 9040        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9041        // we stop at the highest detail available.
 9042        let item3 = cx.new(|cx| {
 9043            let mut item = TestItem::new(cx);
 9044            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9045            item
 9046        });
 9047        workspace.update_in(cx, |workspace, window, cx| {
 9048            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9049        });
 9050        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9051        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9052        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9053    }
 9054
 9055    #[gpui::test]
 9056    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9057        init_test(cx);
 9058
 9059        let fs = FakeFs::new(cx.executor());
 9060        fs.insert_tree(
 9061            "/root1",
 9062            json!({
 9063                "one.txt": "",
 9064                "two.txt": "",
 9065            }),
 9066        )
 9067        .await;
 9068        fs.insert_tree(
 9069            "/root2",
 9070            json!({
 9071                "three.txt": "",
 9072            }),
 9073        )
 9074        .await;
 9075
 9076        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9077        let (workspace, cx) =
 9078            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9079        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9080        let worktree_id = project.update(cx, |project, cx| {
 9081            project.worktrees(cx).next().unwrap().read(cx).id()
 9082        });
 9083
 9084        let item1 = cx.new(|cx| {
 9085            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9086        });
 9087        let item2 = cx.new(|cx| {
 9088            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9089        });
 9090
 9091        // Add an item to an empty pane
 9092        workspace.update_in(cx, |workspace, window, cx| {
 9093            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9094        });
 9095        project.update(cx, |project, cx| {
 9096            assert_eq!(
 9097                project.active_entry(),
 9098                project
 9099                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9100                    .map(|e| e.id)
 9101            );
 9102        });
 9103        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9104
 9105        // Add a second item to a non-empty pane
 9106        workspace.update_in(cx, |workspace, window, cx| {
 9107            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9108        });
 9109        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9110        project.update(cx, |project, cx| {
 9111            assert_eq!(
 9112                project.active_entry(),
 9113                project
 9114                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9115                    .map(|e| e.id)
 9116            );
 9117        });
 9118
 9119        // Close the active item
 9120        pane.update_in(cx, |pane, window, cx| {
 9121            pane.close_active_item(&Default::default(), window, cx)
 9122        })
 9123        .await
 9124        .unwrap();
 9125        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9126        project.update(cx, |project, cx| {
 9127            assert_eq!(
 9128                project.active_entry(),
 9129                project
 9130                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9131                    .map(|e| e.id)
 9132            );
 9133        });
 9134
 9135        // Add a project folder
 9136        project
 9137            .update(cx, |project, cx| {
 9138                project.find_or_create_worktree("root2", true, cx)
 9139            })
 9140            .await
 9141            .unwrap();
 9142        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9143
 9144        // Remove a project folder
 9145        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9146        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9147    }
 9148
 9149    #[gpui::test]
 9150    async fn test_close_window(cx: &mut TestAppContext) {
 9151        init_test(cx);
 9152
 9153        let fs = FakeFs::new(cx.executor());
 9154        fs.insert_tree("/root", json!({ "one": "" })).await;
 9155
 9156        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9157        let (workspace, cx) =
 9158            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9159
 9160        // When there are no dirty items, there's nothing to do.
 9161        let item1 = cx.new(TestItem::new);
 9162        workspace.update_in(cx, |w, window, cx| {
 9163            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9164        });
 9165        let task = workspace.update_in(cx, |w, window, cx| {
 9166            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9167        });
 9168        assert!(task.await.unwrap());
 9169
 9170        // When there are dirty untitled items, prompt to save each one. If the user
 9171        // cancels any prompt, then abort.
 9172        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9173        let item3 = cx.new(|cx| {
 9174            TestItem::new(cx)
 9175                .with_dirty(true)
 9176                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9177        });
 9178        workspace.update_in(cx, |w, window, cx| {
 9179            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9180            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9181        });
 9182        let task = workspace.update_in(cx, |w, window, cx| {
 9183            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9184        });
 9185        cx.executor().run_until_parked();
 9186        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9187        cx.executor().run_until_parked();
 9188        assert!(!cx.has_pending_prompt());
 9189        assert!(!task.await.unwrap());
 9190    }
 9191
 9192    #[gpui::test]
 9193    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9194        init_test(cx);
 9195
 9196        // Register TestItem as a serializable item
 9197        cx.update(|cx| {
 9198            register_serializable_item::<TestItem>(cx);
 9199        });
 9200
 9201        let fs = FakeFs::new(cx.executor());
 9202        fs.insert_tree("/root", json!({ "one": "" })).await;
 9203
 9204        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9205        let (workspace, cx) =
 9206            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9207
 9208        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9209        let item1 = cx.new(|cx| {
 9210            TestItem::new(cx)
 9211                .with_dirty(true)
 9212                .with_serialize(|| Some(Task::ready(Ok(()))))
 9213        });
 9214        let item2 = cx.new(|cx| {
 9215            TestItem::new(cx)
 9216                .with_dirty(true)
 9217                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9218                .with_serialize(|| Some(Task::ready(Ok(()))))
 9219        });
 9220        workspace.update_in(cx, |w, window, cx| {
 9221            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9222            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9223        });
 9224        let task = workspace.update_in(cx, |w, window, cx| {
 9225            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9226        });
 9227        assert!(task.await.unwrap());
 9228    }
 9229
 9230    #[gpui::test]
 9231    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9232        init_test(cx);
 9233
 9234        let fs = FakeFs::new(cx.executor());
 9235
 9236        let project = Project::test(fs, None, cx).await;
 9237        let (workspace, cx) =
 9238            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9239
 9240        let item1 = cx.new(|cx| {
 9241            TestItem::new(cx)
 9242                .with_dirty(true)
 9243                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9244        });
 9245        let item2 = cx.new(|cx| {
 9246            TestItem::new(cx)
 9247                .with_dirty(true)
 9248                .with_conflict(true)
 9249                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9250        });
 9251        let item3 = cx.new(|cx| {
 9252            TestItem::new(cx)
 9253                .with_dirty(true)
 9254                .with_conflict(true)
 9255                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9256        });
 9257        let item4 = cx.new(|cx| {
 9258            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9259                let project_item = TestProjectItem::new_untitled(cx);
 9260                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9261                project_item
 9262            }])
 9263        });
 9264        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9265            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9266            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9267            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9268            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9269            workspace.active_pane().clone()
 9270        });
 9271
 9272        let close_items = pane.update_in(cx, |pane, window, cx| {
 9273            pane.activate_item(1, true, true, window, cx);
 9274            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9275            let item1_id = item1.item_id();
 9276            let item3_id = item3.item_id();
 9277            let item4_id = item4.item_id();
 9278            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9279                [item1_id, item3_id, item4_id].contains(&id)
 9280            })
 9281        });
 9282        cx.executor().run_until_parked();
 9283
 9284        assert!(cx.has_pending_prompt());
 9285        cx.simulate_prompt_answer("Save all");
 9286
 9287        cx.executor().run_until_parked();
 9288
 9289        // Item 1 is saved. There's a prompt to save item 3.
 9290        pane.update(cx, |pane, cx| {
 9291            assert_eq!(item1.read(cx).save_count, 1);
 9292            assert_eq!(item1.read(cx).save_as_count, 0);
 9293            assert_eq!(item1.read(cx).reload_count, 0);
 9294            assert_eq!(pane.items_len(), 3);
 9295            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9296        });
 9297        assert!(cx.has_pending_prompt());
 9298
 9299        // Cancel saving item 3.
 9300        cx.simulate_prompt_answer("Discard");
 9301        cx.executor().run_until_parked();
 9302
 9303        // Item 3 is reloaded. There's a prompt to save item 4.
 9304        pane.update(cx, |pane, cx| {
 9305            assert_eq!(item3.read(cx).save_count, 0);
 9306            assert_eq!(item3.read(cx).save_as_count, 0);
 9307            assert_eq!(item3.read(cx).reload_count, 1);
 9308            assert_eq!(pane.items_len(), 2);
 9309            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9310        });
 9311
 9312        // There's a prompt for a path for item 4.
 9313        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9314        close_items.await.unwrap();
 9315
 9316        // The requested items are closed.
 9317        pane.update(cx, |pane, cx| {
 9318            assert_eq!(item4.read(cx).save_count, 0);
 9319            assert_eq!(item4.read(cx).save_as_count, 1);
 9320            assert_eq!(item4.read(cx).reload_count, 0);
 9321            assert_eq!(pane.items_len(), 1);
 9322            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9323        });
 9324    }
 9325
 9326    #[gpui::test]
 9327    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9328        init_test(cx);
 9329
 9330        let fs = FakeFs::new(cx.executor());
 9331        let project = Project::test(fs, [], cx).await;
 9332        let (workspace, cx) =
 9333            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9334
 9335        // Create several workspace items with single project entries, and two
 9336        // workspace items with multiple project entries.
 9337        let single_entry_items = (0..=4)
 9338            .map(|project_entry_id| {
 9339                cx.new(|cx| {
 9340                    TestItem::new(cx)
 9341                        .with_dirty(true)
 9342                        .with_project_items(&[dirty_project_item(
 9343                            project_entry_id,
 9344                            &format!("{project_entry_id}.txt"),
 9345                            cx,
 9346                        )])
 9347                })
 9348            })
 9349            .collect::<Vec<_>>();
 9350        let item_2_3 = cx.new(|cx| {
 9351            TestItem::new(cx)
 9352                .with_dirty(true)
 9353                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9354                .with_project_items(&[
 9355                    single_entry_items[2].read(cx).project_items[0].clone(),
 9356                    single_entry_items[3].read(cx).project_items[0].clone(),
 9357                ])
 9358        });
 9359        let item_3_4 = cx.new(|cx| {
 9360            TestItem::new(cx)
 9361                .with_dirty(true)
 9362                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9363                .with_project_items(&[
 9364                    single_entry_items[3].read(cx).project_items[0].clone(),
 9365                    single_entry_items[4].read(cx).project_items[0].clone(),
 9366                ])
 9367        });
 9368
 9369        // Create two panes that contain the following project entries:
 9370        //   left pane:
 9371        //     multi-entry items:   (2, 3)
 9372        //     single-entry items:  0, 2, 3, 4
 9373        //   right pane:
 9374        //     single-entry items:  4, 1
 9375        //     multi-entry items:   (3, 4)
 9376        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9377            let left_pane = workspace.active_pane().clone();
 9378            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9379            workspace.add_item_to_active_pane(
 9380                single_entry_items[0].boxed_clone(),
 9381                None,
 9382                true,
 9383                window,
 9384                cx,
 9385            );
 9386            workspace.add_item_to_active_pane(
 9387                single_entry_items[2].boxed_clone(),
 9388                None,
 9389                true,
 9390                window,
 9391                cx,
 9392            );
 9393            workspace.add_item_to_active_pane(
 9394                single_entry_items[3].boxed_clone(),
 9395                None,
 9396                true,
 9397                window,
 9398                cx,
 9399            );
 9400            workspace.add_item_to_active_pane(
 9401                single_entry_items[4].boxed_clone(),
 9402                None,
 9403                true,
 9404                window,
 9405                cx,
 9406            );
 9407
 9408            let right_pane =
 9409                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9410
 9411            let boxed_clone = single_entry_items[1].boxed_clone();
 9412            let right_pane = window.spawn(cx, async move |cx| {
 9413                right_pane.await.inspect(|right_pane| {
 9414                    right_pane
 9415                        .update_in(cx, |pane, window, cx| {
 9416                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9417                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9418                        })
 9419                        .unwrap();
 9420                })
 9421            });
 9422
 9423            (left_pane, right_pane)
 9424        });
 9425        let right_pane = right_pane.await.unwrap();
 9426        cx.focus(&right_pane);
 9427
 9428        let close = right_pane.update_in(cx, |pane, window, cx| {
 9429            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9430                .unwrap()
 9431        });
 9432        cx.executor().run_until_parked();
 9433
 9434        let msg = cx.pending_prompt().unwrap().0;
 9435        assert!(msg.contains("1.txt"));
 9436        assert!(!msg.contains("2.txt"));
 9437        assert!(!msg.contains("3.txt"));
 9438        assert!(!msg.contains("4.txt"));
 9439
 9440        // With best-effort close, cancelling item 1 keeps it open but items 4
 9441        // and (3,4) still close since their entries exist in left pane.
 9442        cx.simulate_prompt_answer("Cancel");
 9443        close.await;
 9444
 9445        right_pane.read_with(cx, |pane, _| {
 9446            assert_eq!(pane.items_len(), 1);
 9447        });
 9448
 9449        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9450        left_pane
 9451            .update_in(cx, |left_pane, window, cx| {
 9452                left_pane.close_item_by_id(
 9453                    single_entry_items[3].entity_id(),
 9454                    SaveIntent::Skip,
 9455                    window,
 9456                    cx,
 9457                )
 9458            })
 9459            .await
 9460            .unwrap();
 9461
 9462        let close = left_pane.update_in(cx, |pane, window, cx| {
 9463            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9464                .unwrap()
 9465        });
 9466        cx.executor().run_until_parked();
 9467
 9468        let details = cx.pending_prompt().unwrap().1;
 9469        assert!(details.contains("0.txt"));
 9470        assert!(details.contains("3.txt"));
 9471        assert!(details.contains("4.txt"));
 9472        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9473        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9474        // assert!(!details.contains("2.txt"));
 9475
 9476        cx.simulate_prompt_answer("Save all");
 9477        cx.executor().run_until_parked();
 9478        close.await;
 9479
 9480        left_pane.read_with(cx, |pane, _| {
 9481            assert_eq!(pane.items_len(), 0);
 9482        });
 9483    }
 9484
 9485    #[gpui::test]
 9486    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9487        init_test(cx);
 9488
 9489        let fs = FakeFs::new(cx.executor());
 9490        let project = Project::test(fs, [], cx).await;
 9491        let (workspace, cx) =
 9492            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9493        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9494
 9495        let item = cx.new(|cx| {
 9496            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9497        });
 9498        let item_id = item.entity_id();
 9499        workspace.update_in(cx, |workspace, window, cx| {
 9500            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9501        });
 9502
 9503        // Autosave on window change.
 9504        item.update(cx, |item, cx| {
 9505            SettingsStore::update_global(cx, |settings, cx| {
 9506                settings.update_user_settings(cx, |settings| {
 9507                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9508                })
 9509            });
 9510            item.is_dirty = true;
 9511        });
 9512
 9513        // Deactivating the window saves the file.
 9514        cx.deactivate_window();
 9515        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9516
 9517        // Re-activating the window doesn't save the file.
 9518        cx.update(|window, _| window.activate_window());
 9519        cx.executor().run_until_parked();
 9520        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9521
 9522        // Autosave on focus change.
 9523        item.update_in(cx, |item, window, cx| {
 9524            cx.focus_self(window);
 9525            SettingsStore::update_global(cx, |settings, cx| {
 9526                settings.update_user_settings(cx, |settings| {
 9527                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9528                })
 9529            });
 9530            item.is_dirty = true;
 9531        });
 9532        // Blurring the item saves the file.
 9533        item.update_in(cx, |_, window, _| window.blur());
 9534        cx.executor().run_until_parked();
 9535        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9536
 9537        // Deactivating the window still saves the file.
 9538        item.update_in(cx, |item, window, cx| {
 9539            cx.focus_self(window);
 9540            item.is_dirty = true;
 9541        });
 9542        cx.deactivate_window();
 9543        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9544
 9545        // Autosave after delay.
 9546        item.update(cx, |item, cx| {
 9547            SettingsStore::update_global(cx, |settings, cx| {
 9548                settings.update_user_settings(cx, |settings| {
 9549                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9550                        milliseconds: 500.into(),
 9551                    });
 9552                })
 9553            });
 9554            item.is_dirty = true;
 9555            cx.emit(ItemEvent::Edit);
 9556        });
 9557
 9558        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9559        cx.executor().advance_clock(Duration::from_millis(250));
 9560        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9561
 9562        // After delay expires, the file is saved.
 9563        cx.executor().advance_clock(Duration::from_millis(250));
 9564        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9565
 9566        // Autosave after delay, should save earlier than delay if tab is closed
 9567        item.update(cx, |item, cx| {
 9568            item.is_dirty = true;
 9569            cx.emit(ItemEvent::Edit);
 9570        });
 9571        cx.executor().advance_clock(Duration::from_millis(250));
 9572        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9573
 9574        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9575        pane.update_in(cx, |pane, window, cx| {
 9576            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9577        })
 9578        .await
 9579        .unwrap();
 9580        assert!(!cx.has_pending_prompt());
 9581        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9582
 9583        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9584        workspace.update_in(cx, |workspace, window, cx| {
 9585            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9586        });
 9587        item.update_in(cx, |item, _window, cx| {
 9588            item.is_dirty = true;
 9589            for project_item in &mut item.project_items {
 9590                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9591            }
 9592        });
 9593        cx.run_until_parked();
 9594        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9595
 9596        // Autosave on focus change, ensuring closing the tab counts as such.
 9597        item.update(cx, |item, cx| {
 9598            SettingsStore::update_global(cx, |settings, cx| {
 9599                settings.update_user_settings(cx, |settings| {
 9600                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9601                })
 9602            });
 9603            item.is_dirty = true;
 9604            for project_item in &mut item.project_items {
 9605                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9606            }
 9607        });
 9608
 9609        pane.update_in(cx, |pane, window, cx| {
 9610            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9611        })
 9612        .await
 9613        .unwrap();
 9614        assert!(!cx.has_pending_prompt());
 9615        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9616
 9617        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9618        workspace.update_in(cx, |workspace, window, cx| {
 9619            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9620        });
 9621        item.update_in(cx, |item, window, cx| {
 9622            item.project_items[0].update(cx, |item, _| {
 9623                item.entry_id = None;
 9624            });
 9625            item.is_dirty = true;
 9626            window.blur();
 9627        });
 9628        cx.run_until_parked();
 9629        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9630
 9631        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9632        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9633            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9634        });
 9635        cx.run_until_parked();
 9636        assert!(cx.has_pending_prompt());
 9637        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9638    }
 9639
 9640    #[gpui::test]
 9641    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9642        init_test(cx);
 9643
 9644        let fs = FakeFs::new(cx.executor());
 9645
 9646        let project = Project::test(fs, [], cx).await;
 9647        let (workspace, cx) =
 9648            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9649
 9650        let item = cx.new(|cx| {
 9651            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9652        });
 9653        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9654        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9655        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9656
 9657        workspace.update_in(cx, |workspace, window, cx| {
 9658            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9659            let toolbar_notification_count = toolbar_notify_count.clone();
 9660            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9661                *toolbar_notification_count.borrow_mut() += 1
 9662            })
 9663            .detach();
 9664        });
 9665
 9666        pane.read_with(cx, |pane, _| {
 9667            assert!(!pane.can_navigate_backward());
 9668            assert!(!pane.can_navigate_forward());
 9669        });
 9670
 9671        item.update_in(cx, |item, _, cx| {
 9672            item.set_state("one".to_string(), cx);
 9673        });
 9674
 9675        // Toolbar must be notified to re-render the navigation buttons
 9676        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9677
 9678        pane.read_with(cx, |pane, _| {
 9679            assert!(pane.can_navigate_backward());
 9680            assert!(!pane.can_navigate_forward());
 9681        });
 9682
 9683        workspace
 9684            .update_in(cx, |workspace, window, cx| {
 9685                workspace.go_back(pane.downgrade(), window, cx)
 9686            })
 9687            .await
 9688            .unwrap();
 9689
 9690        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9691        pane.read_with(cx, |pane, _| {
 9692            assert!(!pane.can_navigate_backward());
 9693            assert!(pane.can_navigate_forward());
 9694        });
 9695    }
 9696
 9697    #[gpui::test]
 9698    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9699        init_test(cx);
 9700        let fs = FakeFs::new(cx.executor());
 9701
 9702        let project = Project::test(fs, [], cx).await;
 9703        let (workspace, cx) =
 9704            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9705
 9706        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9707            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9708            workspace.add_panel(panel.clone(), window, cx);
 9709
 9710            workspace
 9711                .right_dock()
 9712                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9713
 9714            panel
 9715        });
 9716
 9717        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9718        pane.update_in(cx, |pane, window, cx| {
 9719            let item = cx.new(TestItem::new);
 9720            pane.add_item(Box::new(item), true, true, None, window, cx);
 9721        });
 9722
 9723        // Transfer focus from center to panel
 9724        workspace.update_in(cx, |workspace, window, cx| {
 9725            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9726        });
 9727
 9728        workspace.update_in(cx, |workspace, window, cx| {
 9729            assert!(workspace.right_dock().read(cx).is_open());
 9730            assert!(!panel.is_zoomed(window, cx));
 9731            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9732        });
 9733
 9734        // Transfer focus from panel to center
 9735        workspace.update_in(cx, |workspace, window, cx| {
 9736            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9737        });
 9738
 9739        workspace.update_in(cx, |workspace, window, cx| {
 9740            assert!(workspace.right_dock().read(cx).is_open());
 9741            assert!(!panel.is_zoomed(window, cx));
 9742            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9743        });
 9744
 9745        // Close the dock
 9746        workspace.update_in(cx, |workspace, window, cx| {
 9747            workspace.toggle_dock(DockPosition::Right, window, cx);
 9748        });
 9749
 9750        workspace.update_in(cx, |workspace, window, cx| {
 9751            assert!(!workspace.right_dock().read(cx).is_open());
 9752            assert!(!panel.is_zoomed(window, cx));
 9753            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9754        });
 9755
 9756        // Open the dock
 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!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9765        });
 9766
 9767        // Focus and zoom panel
 9768        panel.update_in(cx, |panel, window, cx| {
 9769            cx.focus_self(window);
 9770            panel.set_zoomed(true, window, cx)
 9771        });
 9772
 9773        workspace.update_in(cx, |workspace, window, cx| {
 9774            assert!(workspace.right_dock().read(cx).is_open());
 9775            assert!(panel.is_zoomed(window, cx));
 9776            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9777        });
 9778
 9779        // Transfer focus to the center closes the dock
 9780        workspace.update_in(cx, |workspace, window, cx| {
 9781            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9782        });
 9783
 9784        workspace.update_in(cx, |workspace, window, cx| {
 9785            assert!(!workspace.right_dock().read(cx).is_open());
 9786            assert!(panel.is_zoomed(window, cx));
 9787            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9788        });
 9789
 9790        // Transferring focus back to the panel keeps it zoomed
 9791        workspace.update_in(cx, |workspace, window, cx| {
 9792            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9793        });
 9794
 9795        workspace.update_in(cx, |workspace, window, cx| {
 9796            assert!(workspace.right_dock().read(cx).is_open());
 9797            assert!(panel.is_zoomed(window, cx));
 9798            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9799        });
 9800
 9801        // Close the dock while it is zoomed
 9802        workspace.update_in(cx, |workspace, window, cx| {
 9803            workspace.toggle_dock(DockPosition::Right, window, cx)
 9804        });
 9805
 9806        workspace.update_in(cx, |workspace, window, cx| {
 9807            assert!(!workspace.right_dock().read(cx).is_open());
 9808            assert!(panel.is_zoomed(window, cx));
 9809            assert!(workspace.zoomed.is_none());
 9810            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9811        });
 9812
 9813        // Opening the dock, when it's zoomed, retains focus
 9814        workspace.update_in(cx, |workspace, window, cx| {
 9815            workspace.toggle_dock(DockPosition::Right, window, cx)
 9816        });
 9817
 9818        workspace.update_in(cx, |workspace, window, cx| {
 9819            assert!(workspace.right_dock().read(cx).is_open());
 9820            assert!(panel.is_zoomed(window, cx));
 9821            assert!(workspace.zoomed.is_some());
 9822            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9823        });
 9824
 9825        // Unzoom and close the panel, zoom the active pane.
 9826        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9827        workspace.update_in(cx, |workspace, window, cx| {
 9828            workspace.toggle_dock(DockPosition::Right, window, cx)
 9829        });
 9830        pane.update_in(cx, |pane, window, cx| {
 9831            pane.toggle_zoom(&Default::default(), window, cx)
 9832        });
 9833
 9834        // Opening a dock unzooms the pane.
 9835        workspace.update_in(cx, |workspace, window, cx| {
 9836            workspace.toggle_dock(DockPosition::Right, window, cx)
 9837        });
 9838        workspace.update_in(cx, |workspace, window, cx| {
 9839            let pane = pane.read(cx);
 9840            assert!(!pane.is_zoomed());
 9841            assert!(!pane.focus_handle(cx).is_focused(window));
 9842            assert!(workspace.right_dock().read(cx).is_open());
 9843            assert!(workspace.zoomed.is_none());
 9844        });
 9845    }
 9846
 9847    #[gpui::test]
 9848    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9849        init_test(cx);
 9850        let fs = FakeFs::new(cx.executor());
 9851
 9852        let project = Project::test(fs, [], cx).await;
 9853        let (workspace, cx) =
 9854            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9855
 9856        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9857            workspace.active_pane().clone()
 9858        });
 9859
 9860        // Add an item to the pane so it can be zoomed
 9861        workspace.update_in(cx, |workspace, window, cx| {
 9862            let item = cx.new(TestItem::new);
 9863            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9864        });
 9865
 9866        // Initially not zoomed
 9867        workspace.update_in(cx, |workspace, _window, cx| {
 9868            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9869            assert!(
 9870                workspace.zoomed.is_none(),
 9871                "Workspace should track no zoomed pane"
 9872            );
 9873            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9874        });
 9875
 9876        // Zoom In
 9877        pane.update_in(cx, |pane, window, cx| {
 9878            pane.zoom_in(&crate::ZoomIn, window, cx);
 9879        });
 9880
 9881        workspace.update_in(cx, |workspace, window, cx| {
 9882            assert!(
 9883                pane.read(cx).is_zoomed(),
 9884                "Pane should be zoomed after ZoomIn"
 9885            );
 9886            assert!(
 9887                workspace.zoomed.is_some(),
 9888                "Workspace should track the zoomed pane"
 9889            );
 9890            assert!(
 9891                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9892                "ZoomIn should focus the pane"
 9893            );
 9894        });
 9895
 9896        // Zoom In again is a no-op
 9897        pane.update_in(cx, |pane, window, cx| {
 9898            pane.zoom_in(&crate::ZoomIn, window, cx);
 9899        });
 9900
 9901        workspace.update_in(cx, |workspace, window, cx| {
 9902            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9903            assert!(
 9904                workspace.zoomed.is_some(),
 9905                "Workspace still tracks zoomed pane"
 9906            );
 9907            assert!(
 9908                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9909                "Pane remains focused after repeated ZoomIn"
 9910            );
 9911        });
 9912
 9913        // Zoom Out
 9914        pane.update_in(cx, |pane, window, cx| {
 9915            pane.zoom_out(&crate::ZoomOut, window, cx);
 9916        });
 9917
 9918        workspace.update_in(cx, |workspace, _window, cx| {
 9919            assert!(
 9920                !pane.read(cx).is_zoomed(),
 9921                "Pane should unzoom after ZoomOut"
 9922            );
 9923            assert!(
 9924                workspace.zoomed.is_none(),
 9925                "Workspace clears zoom tracking after ZoomOut"
 9926            );
 9927        });
 9928
 9929        // Zoom Out again is a no-op
 9930        pane.update_in(cx, |pane, window, cx| {
 9931            pane.zoom_out(&crate::ZoomOut, window, cx);
 9932        });
 9933
 9934        workspace.update_in(cx, |workspace, _window, cx| {
 9935            assert!(
 9936                !pane.read(cx).is_zoomed(),
 9937                "Second ZoomOut keeps pane unzoomed"
 9938            );
 9939            assert!(
 9940                workspace.zoomed.is_none(),
 9941                "Workspace remains without zoomed pane"
 9942            );
 9943        });
 9944    }
 9945
 9946    #[gpui::test]
 9947    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9948        init_test(cx);
 9949        let fs = FakeFs::new(cx.executor());
 9950
 9951        let project = Project::test(fs, [], cx).await;
 9952        let (workspace, cx) =
 9953            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9954        workspace.update_in(cx, |workspace, window, cx| {
 9955            // Open two docks
 9956            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9957            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9958
 9959            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9960            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9961
 9962            assert!(left_dock.read(cx).is_open());
 9963            assert!(right_dock.read(cx).is_open());
 9964        });
 9965
 9966        workspace.update_in(cx, |workspace, window, cx| {
 9967            // Toggle all docks - should close both
 9968            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9969
 9970            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9971            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9972            assert!(!left_dock.read(cx).is_open());
 9973            assert!(!right_dock.read(cx).is_open());
 9974        });
 9975
 9976        workspace.update_in(cx, |workspace, window, cx| {
 9977            // Toggle again - should reopen both
 9978            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9979
 9980            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9981            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9982            assert!(left_dock.read(cx).is_open());
 9983            assert!(right_dock.read(cx).is_open());
 9984        });
 9985    }
 9986
 9987    #[gpui::test]
 9988    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9989        init_test(cx);
 9990        let fs = FakeFs::new(cx.executor());
 9991
 9992        let project = Project::test(fs, [], cx).await;
 9993        let (workspace, cx) =
 9994            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9995        workspace.update_in(cx, |workspace, window, cx| {
 9996            // Open two docks
 9997            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9998            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9999
10000            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10001            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10002
10003            assert!(left_dock.read(cx).is_open());
10004            assert!(right_dock.read(cx).is_open());
10005        });
10006
10007        workspace.update_in(cx, |workspace, window, cx| {
10008            // Close them manually
10009            workspace.toggle_dock(DockPosition::Left, window, cx);
10010            workspace.toggle_dock(DockPosition::Right, window, cx);
10011
10012            let left_dock = workspace.dock_at_position(DockPosition::Left);
10013            let right_dock = workspace.dock_at_position(DockPosition::Right);
10014            assert!(!left_dock.read(cx).is_open());
10015            assert!(!right_dock.read(cx).is_open());
10016        });
10017
10018        workspace.update_in(cx, |workspace, window, cx| {
10019            // Toggle all docks - only last closed (right dock) should reopen
10020            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10021
10022            let left_dock = workspace.dock_at_position(DockPosition::Left);
10023            let right_dock = workspace.dock_at_position(DockPosition::Right);
10024            assert!(!left_dock.read(cx).is_open());
10025            assert!(right_dock.read(cx).is_open());
10026        });
10027    }
10028
10029    #[gpui::test]
10030    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10031        init_test(cx);
10032        let fs = FakeFs::new(cx.executor());
10033        let project = Project::test(fs, [], cx).await;
10034        let (workspace, cx) =
10035            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10036
10037        // Open two docks (left and right) with one panel each
10038        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10039            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10040            workspace.add_panel(left_panel.clone(), window, cx);
10041
10042            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10043            workspace.add_panel(right_panel.clone(), window, cx);
10044
10045            workspace.toggle_dock(DockPosition::Left, window, cx);
10046            workspace.toggle_dock(DockPosition::Right, window, cx);
10047
10048            // Verify initial state
10049            assert!(
10050                workspace.left_dock().read(cx).is_open(),
10051                "Left dock should be open"
10052            );
10053            assert_eq!(
10054                workspace
10055                    .left_dock()
10056                    .read(cx)
10057                    .visible_panel()
10058                    .unwrap()
10059                    .panel_id(),
10060                left_panel.panel_id(),
10061                "Left panel should be visible in left dock"
10062            );
10063            assert!(
10064                workspace.right_dock().read(cx).is_open(),
10065                "Right dock should be open"
10066            );
10067            assert_eq!(
10068                workspace
10069                    .right_dock()
10070                    .read(cx)
10071                    .visible_panel()
10072                    .unwrap()
10073                    .panel_id(),
10074                right_panel.panel_id(),
10075                "Right panel should be visible in right dock"
10076            );
10077            assert!(
10078                !workspace.bottom_dock().read(cx).is_open(),
10079                "Bottom dock should be closed"
10080            );
10081
10082            (left_panel, right_panel)
10083        });
10084
10085        // Focus the left panel and move it to the next position (bottom dock)
10086        workspace.update_in(cx, |workspace, window, cx| {
10087            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10088            assert!(
10089                left_panel.read(cx).focus_handle(cx).is_focused(window),
10090                "Left panel should be focused"
10091            );
10092        });
10093
10094        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10095
10096        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10097        workspace.update(cx, |workspace, cx| {
10098            assert!(
10099                !workspace.left_dock().read(cx).is_open(),
10100                "Left dock should be closed"
10101            );
10102            assert!(
10103                workspace.bottom_dock().read(cx).is_open(),
10104                "Bottom dock should now be open"
10105            );
10106            assert_eq!(
10107                left_panel.read(cx).position,
10108                DockPosition::Bottom,
10109                "Left panel should now be in the bottom dock"
10110            );
10111            assert_eq!(
10112                workspace
10113                    .bottom_dock()
10114                    .read(cx)
10115                    .visible_panel()
10116                    .unwrap()
10117                    .panel_id(),
10118                left_panel.panel_id(),
10119                "Left panel should be the visible panel in the bottom dock"
10120            );
10121        });
10122
10123        // Toggle all docks off
10124        workspace.update_in(cx, |workspace, window, cx| {
10125            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10126            assert!(
10127                !workspace.left_dock().read(cx).is_open(),
10128                "Left dock should be closed"
10129            );
10130            assert!(
10131                !workspace.right_dock().read(cx).is_open(),
10132                "Right dock should be closed"
10133            );
10134            assert!(
10135                !workspace.bottom_dock().read(cx).is_open(),
10136                "Bottom dock should be closed"
10137            );
10138        });
10139
10140        // Toggle all docks back on and verify positions are restored
10141        workspace.update_in(cx, |workspace, window, cx| {
10142            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10143            assert!(
10144                !workspace.left_dock().read(cx).is_open(),
10145                "Left dock should remain closed"
10146            );
10147            assert!(
10148                workspace.right_dock().read(cx).is_open(),
10149                "Right dock should remain open"
10150            );
10151            assert!(
10152                workspace.bottom_dock().read(cx).is_open(),
10153                "Bottom dock should remain open"
10154            );
10155            assert_eq!(
10156                left_panel.read(cx).position,
10157                DockPosition::Bottom,
10158                "Left panel should remain in the bottom dock"
10159            );
10160            assert_eq!(
10161                right_panel.read(cx).position,
10162                DockPosition::Right,
10163                "Right panel should remain in the right dock"
10164            );
10165            assert_eq!(
10166                workspace
10167                    .bottom_dock()
10168                    .read(cx)
10169                    .visible_panel()
10170                    .unwrap()
10171                    .panel_id(),
10172                left_panel.panel_id(),
10173                "Left panel should be the visible panel in the right dock"
10174            );
10175        });
10176    }
10177
10178    #[gpui::test]
10179    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10180        init_test(cx);
10181
10182        let fs = FakeFs::new(cx.executor());
10183
10184        let project = Project::test(fs, None, cx).await;
10185        let (workspace, cx) =
10186            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10187
10188        // Let's arrange the panes like this:
10189        //
10190        // +-----------------------+
10191        // |         top           |
10192        // +------+--------+-------+
10193        // | left | center | right |
10194        // +------+--------+-------+
10195        // |        bottom         |
10196        // +-----------------------+
10197
10198        let top_item = cx.new(|cx| {
10199            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10200        });
10201        let bottom_item = cx.new(|cx| {
10202            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10203        });
10204        let left_item = cx.new(|cx| {
10205            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10206        });
10207        let right_item = cx.new(|cx| {
10208            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10209        });
10210        let center_item = cx.new(|cx| {
10211            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10212        });
10213
10214        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10215            let top_pane_id = workspace.active_pane().entity_id();
10216            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10217            workspace.split_pane(
10218                workspace.active_pane().clone(),
10219                SplitDirection::Down,
10220                window,
10221                cx,
10222            );
10223            top_pane_id
10224        });
10225        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10226            let bottom_pane_id = workspace.active_pane().entity_id();
10227            workspace.add_item_to_active_pane(
10228                Box::new(bottom_item.clone()),
10229                None,
10230                false,
10231                window,
10232                cx,
10233            );
10234            workspace.split_pane(
10235                workspace.active_pane().clone(),
10236                SplitDirection::Up,
10237                window,
10238                cx,
10239            );
10240            bottom_pane_id
10241        });
10242        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10243            let left_pane_id = workspace.active_pane().entity_id();
10244            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10245            workspace.split_pane(
10246                workspace.active_pane().clone(),
10247                SplitDirection::Right,
10248                window,
10249                cx,
10250            );
10251            left_pane_id
10252        });
10253        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10254            let right_pane_id = workspace.active_pane().entity_id();
10255            workspace.add_item_to_active_pane(
10256                Box::new(right_item.clone()),
10257                None,
10258                false,
10259                window,
10260                cx,
10261            );
10262            workspace.split_pane(
10263                workspace.active_pane().clone(),
10264                SplitDirection::Left,
10265                window,
10266                cx,
10267            );
10268            right_pane_id
10269        });
10270        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10271            let center_pane_id = workspace.active_pane().entity_id();
10272            workspace.add_item_to_active_pane(
10273                Box::new(center_item.clone()),
10274                None,
10275                false,
10276                window,
10277                cx,
10278            );
10279            center_pane_id
10280        });
10281        cx.executor().run_until_parked();
10282
10283        workspace.update_in(cx, |workspace, window, cx| {
10284            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10285
10286            // Join into next from center pane into right
10287            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10288        });
10289
10290        workspace.update_in(cx, |workspace, window, cx| {
10291            let active_pane = workspace.active_pane();
10292            assert_eq!(right_pane_id, active_pane.entity_id());
10293            assert_eq!(2, active_pane.read(cx).items_len());
10294            let item_ids_in_pane =
10295                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10296            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10297            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10298
10299            // Join into next from right pane into bottom
10300            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10301        });
10302
10303        workspace.update_in(cx, |workspace, window, cx| {
10304            let active_pane = workspace.active_pane();
10305            assert_eq!(bottom_pane_id, active_pane.entity_id());
10306            assert_eq!(3, active_pane.read(cx).items_len());
10307            let item_ids_in_pane =
10308                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10309            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10310            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10311            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10312
10313            // Join into next from bottom pane into left
10314            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10315        });
10316
10317        workspace.update_in(cx, |workspace, window, cx| {
10318            let active_pane = workspace.active_pane();
10319            assert_eq!(left_pane_id, active_pane.entity_id());
10320            assert_eq!(4, active_pane.read(cx).items_len());
10321            let item_ids_in_pane =
10322                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10323            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10324            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10325            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10326            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10327
10328            // Join into next from left pane into top
10329            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10330        });
10331
10332        workspace.update_in(cx, |workspace, window, cx| {
10333            let active_pane = workspace.active_pane();
10334            assert_eq!(top_pane_id, active_pane.entity_id());
10335            assert_eq!(5, active_pane.read(cx).items_len());
10336            let item_ids_in_pane =
10337                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10338            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10339            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10340            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10341            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10342            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10343
10344            // Single pane left: no-op
10345            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10346        });
10347
10348        workspace.update(cx, |workspace, _cx| {
10349            let active_pane = workspace.active_pane();
10350            assert_eq!(top_pane_id, active_pane.entity_id());
10351        });
10352    }
10353
10354    fn add_an_item_to_active_pane(
10355        cx: &mut VisualTestContext,
10356        workspace: &Entity<Workspace>,
10357        item_id: u64,
10358    ) -> Entity<TestItem> {
10359        let item = cx.new(|cx| {
10360            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10361                item_id,
10362                "item{item_id}.txt",
10363                cx,
10364            )])
10365        });
10366        workspace.update_in(cx, |workspace, window, cx| {
10367            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10368        });
10369        item
10370    }
10371
10372    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10373        workspace.update_in(cx, |workspace, window, cx| {
10374            workspace.split_pane(
10375                workspace.active_pane().clone(),
10376                SplitDirection::Right,
10377                window,
10378                cx,
10379            )
10380        })
10381    }
10382
10383    #[gpui::test]
10384    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10385        init_test(cx);
10386        let fs = FakeFs::new(cx.executor());
10387        let project = Project::test(fs, None, cx).await;
10388        let (workspace, cx) =
10389            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10390
10391        add_an_item_to_active_pane(cx, &workspace, 1);
10392        split_pane(cx, &workspace);
10393        add_an_item_to_active_pane(cx, &workspace, 2);
10394        split_pane(cx, &workspace); // empty pane
10395        split_pane(cx, &workspace);
10396        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10397
10398        cx.executor().run_until_parked();
10399
10400        workspace.update(cx, |workspace, cx| {
10401            let num_panes = workspace.panes().len();
10402            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10403            let active_item = workspace
10404                .active_pane()
10405                .read(cx)
10406                .active_item()
10407                .expect("item is in focus");
10408
10409            assert_eq!(num_panes, 4);
10410            assert_eq!(num_items_in_current_pane, 1);
10411            assert_eq!(active_item.item_id(), last_item.item_id());
10412        });
10413
10414        workspace.update_in(cx, |workspace, window, cx| {
10415            workspace.join_all_panes(window, cx);
10416        });
10417
10418        workspace.update(cx, |workspace, cx| {
10419            let num_panes = workspace.panes().len();
10420            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10421            let active_item = workspace
10422                .active_pane()
10423                .read(cx)
10424                .active_item()
10425                .expect("item is in focus");
10426
10427            assert_eq!(num_panes, 1);
10428            assert_eq!(num_items_in_current_pane, 3);
10429            assert_eq!(active_item.item_id(), last_item.item_id());
10430        });
10431    }
10432    struct TestModal(FocusHandle);
10433
10434    impl TestModal {
10435        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10436            Self(cx.focus_handle())
10437        }
10438    }
10439
10440    impl EventEmitter<DismissEvent> for TestModal {}
10441
10442    impl Focusable for TestModal {
10443        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10444            self.0.clone()
10445        }
10446    }
10447
10448    impl ModalView for TestModal {}
10449
10450    impl Render for TestModal {
10451        fn render(
10452            &mut self,
10453            _window: &mut Window,
10454            _cx: &mut Context<TestModal>,
10455        ) -> impl IntoElement {
10456            div().track_focus(&self.0)
10457        }
10458    }
10459
10460    #[gpui::test]
10461    async fn test_panels(cx: &mut gpui::TestAppContext) {
10462        init_test(cx);
10463        let fs = FakeFs::new(cx.executor());
10464
10465        let project = Project::test(fs, [], cx).await;
10466        let (workspace, cx) =
10467            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10468
10469        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10470            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10471            workspace.add_panel(panel_1.clone(), window, cx);
10472            workspace.toggle_dock(DockPosition::Left, window, cx);
10473            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10474            workspace.add_panel(panel_2.clone(), window, cx);
10475            workspace.toggle_dock(DockPosition::Right, window, cx);
10476
10477            let left_dock = workspace.left_dock();
10478            assert_eq!(
10479                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10480                panel_1.panel_id()
10481            );
10482            assert_eq!(
10483                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10484                panel_1.size(window, cx)
10485            );
10486
10487            left_dock.update(cx, |left_dock, cx| {
10488                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10489            });
10490            assert_eq!(
10491                workspace
10492                    .right_dock()
10493                    .read(cx)
10494                    .visible_panel()
10495                    .unwrap()
10496                    .panel_id(),
10497                panel_2.panel_id(),
10498            );
10499
10500            (panel_1, panel_2)
10501        });
10502
10503        // Move panel_1 to the right
10504        panel_1.update_in(cx, |panel_1, window, cx| {
10505            panel_1.set_position(DockPosition::Right, window, cx)
10506        });
10507
10508        workspace.update_in(cx, |workspace, window, cx| {
10509            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10510            // Since it was the only panel on the left, the left dock should now be closed.
10511            assert!(!workspace.left_dock().read(cx).is_open());
10512            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10513            let right_dock = workspace.right_dock();
10514            assert_eq!(
10515                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10516                panel_1.panel_id()
10517            );
10518            assert_eq!(
10519                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10520                px(1337.)
10521            );
10522
10523            // Now we move panel_2 to the left
10524            panel_2.set_position(DockPosition::Left, window, cx);
10525        });
10526
10527        workspace.update(cx, |workspace, cx| {
10528            // Since panel_2 was not visible on the right, we don't open the left dock.
10529            assert!(!workspace.left_dock().read(cx).is_open());
10530            // And the right dock is unaffected in its displaying of panel_1
10531            assert!(workspace.right_dock().read(cx).is_open());
10532            assert_eq!(
10533                workspace
10534                    .right_dock()
10535                    .read(cx)
10536                    .visible_panel()
10537                    .unwrap()
10538                    .panel_id(),
10539                panel_1.panel_id(),
10540            );
10541        });
10542
10543        // Move panel_1 back to the left
10544        panel_1.update_in(cx, |panel_1, window, cx| {
10545            panel_1.set_position(DockPosition::Left, window, cx)
10546        });
10547
10548        workspace.update_in(cx, |workspace, window, cx| {
10549            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10550            let left_dock = workspace.left_dock();
10551            assert!(left_dock.read(cx).is_open());
10552            assert_eq!(
10553                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10554                panel_1.panel_id()
10555            );
10556            assert_eq!(
10557                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10558                px(1337.)
10559            );
10560            // And the right dock should be closed as it no longer has any panels.
10561            assert!(!workspace.right_dock().read(cx).is_open());
10562
10563            // Now we move panel_1 to the bottom
10564            panel_1.set_position(DockPosition::Bottom, window, cx);
10565        });
10566
10567        workspace.update_in(cx, |workspace, window, cx| {
10568            // Since panel_1 was visible on the left, we close the left dock.
10569            assert!(!workspace.left_dock().read(cx).is_open());
10570            // The bottom dock is sized based on the panel's default size,
10571            // since the panel orientation changed from vertical to horizontal.
10572            let bottom_dock = workspace.bottom_dock();
10573            assert_eq!(
10574                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10575                panel_1.size(window, cx),
10576            );
10577            // Close bottom dock and move panel_1 back to the left.
10578            bottom_dock.update(cx, |bottom_dock, cx| {
10579                bottom_dock.set_open(false, window, cx)
10580            });
10581            panel_1.set_position(DockPosition::Left, window, cx);
10582        });
10583
10584        // Emit activated event on panel 1
10585        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10586
10587        // Now the left dock is open and panel_1 is active and focused.
10588        workspace.update_in(cx, |workspace, window, cx| {
10589            let left_dock = workspace.left_dock();
10590            assert!(left_dock.read(cx).is_open());
10591            assert_eq!(
10592                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10593                panel_1.panel_id(),
10594            );
10595            assert!(panel_1.focus_handle(cx).is_focused(window));
10596        });
10597
10598        // Emit closed event on panel 2, which is not active
10599        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10600
10601        // Wo don't close the left dock, because panel_2 wasn't the active panel
10602        workspace.update(cx, |workspace, cx| {
10603            let left_dock = workspace.left_dock();
10604            assert!(left_dock.read(cx).is_open());
10605            assert_eq!(
10606                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10607                panel_1.panel_id(),
10608            );
10609        });
10610
10611        // Emitting a ZoomIn event shows the panel as zoomed.
10612        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10613        workspace.read_with(cx, |workspace, _| {
10614            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10615            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10616        });
10617
10618        // Move panel to another dock while it is zoomed
10619        panel_1.update_in(cx, |panel, window, cx| {
10620            panel.set_position(DockPosition::Right, window, cx)
10621        });
10622        workspace.read_with(cx, |workspace, _| {
10623            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10624
10625            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10626        });
10627
10628        // This is a helper for getting a:
10629        // - valid focus on an element,
10630        // - that isn't a part of the panes and panels system of the Workspace,
10631        // - and doesn't trigger the 'on_focus_lost' API.
10632        let focus_other_view = {
10633            let workspace = workspace.clone();
10634            move |cx: &mut VisualTestContext| {
10635                workspace.update_in(cx, |workspace, window, cx| {
10636                    if workspace.active_modal::<TestModal>(cx).is_some() {
10637                        workspace.toggle_modal(window, cx, TestModal::new);
10638                        workspace.toggle_modal(window, cx, TestModal::new);
10639                    } else {
10640                        workspace.toggle_modal(window, cx, TestModal::new);
10641                    }
10642                })
10643            }
10644        };
10645
10646        // If focus is transferred to another view that's not a panel or another pane, we still show
10647        // the panel as zoomed.
10648        focus_other_view(cx);
10649        workspace.read_with(cx, |workspace, _| {
10650            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10651            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10652        });
10653
10654        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10655        workspace.update_in(cx, |_workspace, window, cx| {
10656            cx.focus_self(window);
10657        });
10658        workspace.read_with(cx, |workspace, _| {
10659            assert_eq!(workspace.zoomed, None);
10660            assert_eq!(workspace.zoomed_position, None);
10661        });
10662
10663        // If focus is transferred again to another view that's not a panel or a pane, we won't
10664        // show the panel as zoomed because it wasn't zoomed before.
10665        focus_other_view(cx);
10666        workspace.read_with(cx, |workspace, _| {
10667            assert_eq!(workspace.zoomed, None);
10668            assert_eq!(workspace.zoomed_position, None);
10669        });
10670
10671        // When the panel is activated, it is zoomed again.
10672        cx.dispatch_action(ToggleRightDock);
10673        workspace.read_with(cx, |workspace, _| {
10674            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10675            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10676        });
10677
10678        // Emitting a ZoomOut event unzooms the panel.
10679        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10680        workspace.read_with(cx, |workspace, _| {
10681            assert_eq!(workspace.zoomed, None);
10682            assert_eq!(workspace.zoomed_position, None);
10683        });
10684
10685        // Emit closed event on panel 1, which is active
10686        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10687
10688        // Now the left dock is closed, because panel_1 was the active panel
10689        workspace.update(cx, |workspace, cx| {
10690            let right_dock = workspace.right_dock();
10691            assert!(!right_dock.read(cx).is_open());
10692        });
10693    }
10694
10695    #[gpui::test]
10696    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10697        init_test(cx);
10698
10699        let fs = FakeFs::new(cx.background_executor.clone());
10700        let project = Project::test(fs, [], cx).await;
10701        let (workspace, cx) =
10702            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10703        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10704
10705        let dirty_regular_buffer = cx.new(|cx| {
10706            TestItem::new(cx)
10707                .with_dirty(true)
10708                .with_label("1.txt")
10709                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10710        });
10711        let dirty_regular_buffer_2 = cx.new(|cx| {
10712            TestItem::new(cx)
10713                .with_dirty(true)
10714                .with_label("2.txt")
10715                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10716        });
10717        let dirty_multi_buffer_with_both = cx.new(|cx| {
10718            TestItem::new(cx)
10719                .with_dirty(true)
10720                .with_buffer_kind(ItemBufferKind::Multibuffer)
10721                .with_label("Fake Project Search")
10722                .with_project_items(&[
10723                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10724                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10725                ])
10726        });
10727        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10728        workspace.update_in(cx, |workspace, window, cx| {
10729            workspace.add_item(
10730                pane.clone(),
10731                Box::new(dirty_regular_buffer.clone()),
10732                None,
10733                false,
10734                false,
10735                window,
10736                cx,
10737            );
10738            workspace.add_item(
10739                pane.clone(),
10740                Box::new(dirty_regular_buffer_2.clone()),
10741                None,
10742                false,
10743                false,
10744                window,
10745                cx,
10746            );
10747            workspace.add_item(
10748                pane.clone(),
10749                Box::new(dirty_multi_buffer_with_both.clone()),
10750                None,
10751                false,
10752                false,
10753                window,
10754                cx,
10755            );
10756        });
10757
10758        pane.update_in(cx, |pane, window, cx| {
10759            pane.activate_item(2, true, true, window, cx);
10760            assert_eq!(
10761                pane.active_item().unwrap().item_id(),
10762                multi_buffer_with_both_files_id,
10763                "Should select the multi buffer in the pane"
10764            );
10765        });
10766        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10767            pane.close_other_items(
10768                &CloseOtherItems {
10769                    save_intent: Some(SaveIntent::Save),
10770                    close_pinned: true,
10771                },
10772                None,
10773                window,
10774                cx,
10775            )
10776        });
10777        cx.background_executor.run_until_parked();
10778        assert!(!cx.has_pending_prompt());
10779        close_all_but_multi_buffer_task
10780            .await
10781            .expect("Closing all buffers but the multi buffer failed");
10782        pane.update(cx, |pane, cx| {
10783            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10784            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10785            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10786            assert_eq!(pane.items_len(), 1);
10787            assert_eq!(
10788                pane.active_item().unwrap().item_id(),
10789                multi_buffer_with_both_files_id,
10790                "Should have only the multi buffer left in the pane"
10791            );
10792            assert!(
10793                dirty_multi_buffer_with_both.read(cx).is_dirty,
10794                "The multi buffer containing the unsaved buffer should still be dirty"
10795            );
10796        });
10797
10798        dirty_regular_buffer.update(cx, |buffer, cx| {
10799            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10800        });
10801
10802        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10803            pane.close_active_item(
10804                &CloseActiveItem {
10805                    save_intent: Some(SaveIntent::Close),
10806                    close_pinned: false,
10807                },
10808                window,
10809                cx,
10810            )
10811        });
10812        cx.background_executor.run_until_parked();
10813        assert!(
10814            cx.has_pending_prompt(),
10815            "Dirty multi buffer should prompt a save dialog"
10816        );
10817        cx.simulate_prompt_answer("Save");
10818        cx.background_executor.run_until_parked();
10819        close_multi_buffer_task
10820            .await
10821            .expect("Closing the multi buffer failed");
10822        pane.update(cx, |pane, cx| {
10823            assert_eq!(
10824                dirty_multi_buffer_with_both.read(cx).save_count,
10825                1,
10826                "Multi buffer item should get be saved"
10827            );
10828            // Test impl does not save inner items, so we do not assert them
10829            assert_eq!(
10830                pane.items_len(),
10831                0,
10832                "No more items should be left in the pane"
10833            );
10834            assert!(pane.active_item().is_none());
10835        });
10836    }
10837
10838    #[gpui::test]
10839    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10840        cx: &mut TestAppContext,
10841    ) {
10842        init_test(cx);
10843
10844        let fs = FakeFs::new(cx.background_executor.clone());
10845        let project = Project::test(fs, [], cx).await;
10846        let (workspace, cx) =
10847            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10848        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10849
10850        let dirty_regular_buffer = cx.new(|cx| {
10851            TestItem::new(cx)
10852                .with_dirty(true)
10853                .with_label("1.txt")
10854                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10855        });
10856        let dirty_regular_buffer_2 = cx.new(|cx| {
10857            TestItem::new(cx)
10858                .with_dirty(true)
10859                .with_label("2.txt")
10860                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10861        });
10862        let clear_regular_buffer = cx.new(|cx| {
10863            TestItem::new(cx)
10864                .with_label("3.txt")
10865                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10866        });
10867
10868        let dirty_multi_buffer_with_both = cx.new(|cx| {
10869            TestItem::new(cx)
10870                .with_dirty(true)
10871                .with_buffer_kind(ItemBufferKind::Multibuffer)
10872                .with_label("Fake Project Search")
10873                .with_project_items(&[
10874                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10875                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10876                    clear_regular_buffer.read(cx).project_items[0].clone(),
10877                ])
10878        });
10879        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10880        workspace.update_in(cx, |workspace, window, cx| {
10881            workspace.add_item(
10882                pane.clone(),
10883                Box::new(dirty_regular_buffer.clone()),
10884                None,
10885                false,
10886                false,
10887                window,
10888                cx,
10889            );
10890            workspace.add_item(
10891                pane.clone(),
10892                Box::new(dirty_multi_buffer_with_both.clone()),
10893                None,
10894                false,
10895                false,
10896                window,
10897                cx,
10898            );
10899        });
10900
10901        pane.update_in(cx, |pane, window, cx| {
10902            pane.activate_item(1, true, true, window, cx);
10903            assert_eq!(
10904                pane.active_item().unwrap().item_id(),
10905                multi_buffer_with_both_files_id,
10906                "Should select the multi buffer in the pane"
10907            );
10908        });
10909        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10910            pane.close_active_item(
10911                &CloseActiveItem {
10912                    save_intent: None,
10913                    close_pinned: false,
10914                },
10915                window,
10916                cx,
10917            )
10918        });
10919        cx.background_executor.run_until_parked();
10920        assert!(
10921            cx.has_pending_prompt(),
10922            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10923        );
10924    }
10925
10926    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10927    /// closed when they are deleted from disk.
10928    #[gpui::test]
10929    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10930        init_test(cx);
10931
10932        // Enable the close_on_disk_deletion setting
10933        cx.update_global(|store: &mut SettingsStore, cx| {
10934            store.update_user_settings(cx, |settings| {
10935                settings.workspace.close_on_file_delete = Some(true);
10936            });
10937        });
10938
10939        let fs = FakeFs::new(cx.background_executor.clone());
10940        let project = Project::test(fs, [], cx).await;
10941        let (workspace, cx) =
10942            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10943        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10944
10945        // Create a test item that simulates a file
10946        let item = cx.new(|cx| {
10947            TestItem::new(cx)
10948                .with_label("test.txt")
10949                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10950        });
10951
10952        // Add item to workspace
10953        workspace.update_in(cx, |workspace, window, cx| {
10954            workspace.add_item(
10955                pane.clone(),
10956                Box::new(item.clone()),
10957                None,
10958                false,
10959                false,
10960                window,
10961                cx,
10962            );
10963        });
10964
10965        // Verify the item is in the pane
10966        pane.read_with(cx, |pane, _| {
10967            assert_eq!(pane.items().count(), 1);
10968        });
10969
10970        // Simulate file deletion by setting the item's deleted state
10971        item.update(cx, |item, _| {
10972            item.set_has_deleted_file(true);
10973        });
10974
10975        // Emit UpdateTab event to trigger the close behavior
10976        cx.run_until_parked();
10977        item.update(cx, |_, cx| {
10978            cx.emit(ItemEvent::UpdateTab);
10979        });
10980
10981        // Allow the close operation to complete
10982        cx.run_until_parked();
10983
10984        // Verify the item was automatically closed
10985        pane.read_with(cx, |pane, _| {
10986            assert_eq!(
10987                pane.items().count(),
10988                0,
10989                "Item should be automatically closed when file is deleted"
10990            );
10991        });
10992    }
10993
10994    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10995    /// open with a strikethrough when they are deleted from disk.
10996    #[gpui::test]
10997    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10998        init_test(cx);
10999
11000        // Ensure close_on_disk_deletion is disabled (default)
11001        cx.update_global(|store: &mut SettingsStore, cx| {
11002            store.update_user_settings(cx, |settings| {
11003                settings.workspace.close_on_file_delete = Some(false);
11004            });
11005        });
11006
11007        let fs = FakeFs::new(cx.background_executor.clone());
11008        let project = Project::test(fs, [], cx).await;
11009        let (workspace, cx) =
11010            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11011        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11012
11013        // Create a test item that simulates a file
11014        let item = cx.new(|cx| {
11015            TestItem::new(cx)
11016                .with_label("test.txt")
11017                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11018        });
11019
11020        // Add item to workspace
11021        workspace.update_in(cx, |workspace, window, cx| {
11022            workspace.add_item(
11023                pane.clone(),
11024                Box::new(item.clone()),
11025                None,
11026                false,
11027                false,
11028                window,
11029                cx,
11030            );
11031        });
11032
11033        // Verify the item is in the pane
11034        pane.read_with(cx, |pane, _| {
11035            assert_eq!(pane.items().count(), 1);
11036        });
11037
11038        // Simulate file deletion
11039        item.update(cx, |item, _| {
11040            item.set_has_deleted_file(true);
11041        });
11042
11043        // Emit UpdateTab event
11044        cx.run_until_parked();
11045        item.update(cx, |_, cx| {
11046            cx.emit(ItemEvent::UpdateTab);
11047        });
11048
11049        // Allow any potential close operation to complete
11050        cx.run_until_parked();
11051
11052        // Verify the item remains open (with strikethrough)
11053        pane.read_with(cx, |pane, _| {
11054            assert_eq!(
11055                pane.items().count(),
11056                1,
11057                "Item should remain open when close_on_disk_deletion is disabled"
11058            );
11059        });
11060
11061        // Verify the item shows as deleted
11062        item.read_with(cx, |item, _| {
11063            assert!(
11064                item.has_deleted_file,
11065                "Item should be marked as having deleted file"
11066            );
11067        });
11068    }
11069
11070    /// Tests that dirty files are not automatically closed when deleted from disk,
11071    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11072    /// unsaved changes without being prompted.
11073    #[gpui::test]
11074    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11075        init_test(cx);
11076
11077        // Enable the close_on_file_delete setting
11078        cx.update_global(|store: &mut SettingsStore, cx| {
11079            store.update_user_settings(cx, |settings| {
11080                settings.workspace.close_on_file_delete = Some(true);
11081            });
11082        });
11083
11084        let fs = FakeFs::new(cx.background_executor.clone());
11085        let project = Project::test(fs, [], cx).await;
11086        let (workspace, cx) =
11087            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11088        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11089
11090        // Create a dirty test item
11091        let item = cx.new(|cx| {
11092            TestItem::new(cx)
11093                .with_dirty(true)
11094                .with_label("test.txt")
11095                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11096        });
11097
11098        // Add item to workspace
11099        workspace.update_in(cx, |workspace, window, cx| {
11100            workspace.add_item(
11101                pane.clone(),
11102                Box::new(item.clone()),
11103                None,
11104                false,
11105                false,
11106                window,
11107                cx,
11108            );
11109        });
11110
11111        // Simulate file deletion
11112        item.update(cx, |item, _| {
11113            item.set_has_deleted_file(true);
11114        });
11115
11116        // Emit UpdateTab event to trigger the close behavior
11117        cx.run_until_parked();
11118        item.update(cx, |_, cx| {
11119            cx.emit(ItemEvent::UpdateTab);
11120        });
11121
11122        // Allow any potential close operation to complete
11123        cx.run_until_parked();
11124
11125        // Verify the item remains open (dirty files are not auto-closed)
11126        pane.read_with(cx, |pane, _| {
11127            assert_eq!(
11128                pane.items().count(),
11129                1,
11130                "Dirty items should not be automatically closed even when file is deleted"
11131            );
11132        });
11133
11134        // Verify the item is marked as deleted and still dirty
11135        item.read_with(cx, |item, _| {
11136            assert!(
11137                item.has_deleted_file,
11138                "Item should be marked as having deleted file"
11139            );
11140            assert!(item.is_dirty, "Item should still be dirty");
11141        });
11142    }
11143
11144    /// Tests that navigation history is cleaned up when files are auto-closed
11145    /// due to deletion from disk.
11146    #[gpui::test]
11147    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11148        init_test(cx);
11149
11150        // Enable the close_on_file_delete setting
11151        cx.update_global(|store: &mut SettingsStore, cx| {
11152            store.update_user_settings(cx, |settings| {
11153                settings.workspace.close_on_file_delete = Some(true);
11154            });
11155        });
11156
11157        let fs = FakeFs::new(cx.background_executor.clone());
11158        let project = Project::test(fs, [], cx).await;
11159        let (workspace, cx) =
11160            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11161        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11162
11163        // Create test items
11164        let item1 = cx.new(|cx| {
11165            TestItem::new(cx)
11166                .with_label("test1.txt")
11167                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11168        });
11169        let item1_id = item1.item_id();
11170
11171        let item2 = cx.new(|cx| {
11172            TestItem::new(cx)
11173                .with_label("test2.txt")
11174                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11175        });
11176
11177        // Add items to workspace
11178        workspace.update_in(cx, |workspace, window, cx| {
11179            workspace.add_item(
11180                pane.clone(),
11181                Box::new(item1.clone()),
11182                None,
11183                false,
11184                false,
11185                window,
11186                cx,
11187            );
11188            workspace.add_item(
11189                pane.clone(),
11190                Box::new(item2.clone()),
11191                None,
11192                false,
11193                false,
11194                window,
11195                cx,
11196            );
11197        });
11198
11199        // Activate item1 to ensure it gets navigation entries
11200        pane.update_in(cx, |pane, window, cx| {
11201            pane.activate_item(0, true, true, window, cx);
11202        });
11203
11204        // Switch to item2 and back to create navigation history
11205        pane.update_in(cx, |pane, window, cx| {
11206            pane.activate_item(1, true, true, window, cx);
11207        });
11208        cx.run_until_parked();
11209
11210        pane.update_in(cx, |pane, window, cx| {
11211            pane.activate_item(0, true, true, window, cx);
11212        });
11213        cx.run_until_parked();
11214
11215        // Simulate file deletion for item1
11216        item1.update(cx, |item, _| {
11217            item.set_has_deleted_file(true);
11218        });
11219
11220        // Emit UpdateTab event to trigger the close behavior
11221        item1.update(cx, |_, cx| {
11222            cx.emit(ItemEvent::UpdateTab);
11223        });
11224        cx.run_until_parked();
11225
11226        // Verify item1 was closed
11227        pane.read_with(cx, |pane, _| {
11228            assert_eq!(
11229                pane.items().count(),
11230                1,
11231                "Should have 1 item remaining after auto-close"
11232            );
11233        });
11234
11235        // Check navigation history after close
11236        let has_item = pane.read_with(cx, |pane, cx| {
11237            let mut has_item = false;
11238            pane.nav_history().for_each_entry(cx, |entry, _| {
11239                if entry.item.id() == item1_id {
11240                    has_item = true;
11241                }
11242            });
11243            has_item
11244        });
11245
11246        assert!(
11247            !has_item,
11248            "Navigation history should not contain closed item entries"
11249        );
11250    }
11251
11252    #[gpui::test]
11253    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11254        cx: &mut TestAppContext,
11255    ) {
11256        init_test(cx);
11257
11258        let fs = FakeFs::new(cx.background_executor.clone());
11259        let project = Project::test(fs, [], cx).await;
11260        let (workspace, cx) =
11261            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11262        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11263
11264        let dirty_regular_buffer = cx.new(|cx| {
11265            TestItem::new(cx)
11266                .with_dirty(true)
11267                .with_label("1.txt")
11268                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11269        });
11270        let dirty_regular_buffer_2 = cx.new(|cx| {
11271            TestItem::new(cx)
11272                .with_dirty(true)
11273                .with_label("2.txt")
11274                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11275        });
11276        let clear_regular_buffer = cx.new(|cx| {
11277            TestItem::new(cx)
11278                .with_label("3.txt")
11279                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11280        });
11281
11282        let dirty_multi_buffer = cx.new(|cx| {
11283            TestItem::new(cx)
11284                .with_dirty(true)
11285                .with_buffer_kind(ItemBufferKind::Multibuffer)
11286                .with_label("Fake Project Search")
11287                .with_project_items(&[
11288                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11289                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11290                    clear_regular_buffer.read(cx).project_items[0].clone(),
11291                ])
11292        });
11293        workspace.update_in(cx, |workspace, window, cx| {
11294            workspace.add_item(
11295                pane.clone(),
11296                Box::new(dirty_regular_buffer.clone()),
11297                None,
11298                false,
11299                false,
11300                window,
11301                cx,
11302            );
11303            workspace.add_item(
11304                pane.clone(),
11305                Box::new(dirty_regular_buffer_2.clone()),
11306                None,
11307                false,
11308                false,
11309                window,
11310                cx,
11311            );
11312            workspace.add_item(
11313                pane.clone(),
11314                Box::new(dirty_multi_buffer.clone()),
11315                None,
11316                false,
11317                false,
11318                window,
11319                cx,
11320            );
11321        });
11322
11323        pane.update_in(cx, |pane, window, cx| {
11324            pane.activate_item(2, true, true, window, cx);
11325            assert_eq!(
11326                pane.active_item().unwrap().item_id(),
11327                dirty_multi_buffer.item_id(),
11328                "Should select the multi buffer in the pane"
11329            );
11330        });
11331        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11332            pane.close_active_item(
11333                &CloseActiveItem {
11334                    save_intent: None,
11335                    close_pinned: false,
11336                },
11337                window,
11338                cx,
11339            )
11340        });
11341        cx.background_executor.run_until_parked();
11342        assert!(
11343            !cx.has_pending_prompt(),
11344            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11345        );
11346        close_multi_buffer_task
11347            .await
11348            .expect("Closing multi buffer failed");
11349        pane.update(cx, |pane, cx| {
11350            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11351            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11352            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11353            assert_eq!(
11354                pane.items()
11355                    .map(|item| item.item_id())
11356                    .sorted()
11357                    .collect::<Vec<_>>(),
11358                vec![
11359                    dirty_regular_buffer.item_id(),
11360                    dirty_regular_buffer_2.item_id(),
11361                ],
11362                "Should have no multi buffer left in the pane"
11363            );
11364            assert!(dirty_regular_buffer.read(cx).is_dirty);
11365            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11366        });
11367    }
11368
11369    #[gpui::test]
11370    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11371        init_test(cx);
11372        let fs = FakeFs::new(cx.executor());
11373        let project = Project::test(fs, [], cx).await;
11374        let (workspace, cx) =
11375            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11376
11377        // Add a new panel to the right dock, opening the dock and setting the
11378        // focus to the new panel.
11379        let panel = workspace.update_in(cx, |workspace, window, cx| {
11380            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11381            workspace.add_panel(panel.clone(), window, cx);
11382
11383            workspace
11384                .right_dock()
11385                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11386
11387            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11388
11389            panel
11390        });
11391
11392        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11393        // panel to the next valid position which, in this case, is the left
11394        // dock.
11395        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11396        workspace.update(cx, |workspace, cx| {
11397            assert!(workspace.left_dock().read(cx).is_open());
11398            assert_eq!(panel.read(cx).position, DockPosition::Left);
11399        });
11400
11401        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11402        // panel to the next valid position which, in this case, is the bottom
11403        // dock.
11404        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11405        workspace.update(cx, |workspace, cx| {
11406            assert!(workspace.bottom_dock().read(cx).is_open());
11407            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11408        });
11409
11410        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11411        // around moving the panel to its initial position, the right dock.
11412        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11413        workspace.update(cx, |workspace, cx| {
11414            assert!(workspace.right_dock().read(cx).is_open());
11415            assert_eq!(panel.read(cx).position, DockPosition::Right);
11416        });
11417
11418        // Remove focus from the panel, ensuring that, if the panel is not
11419        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11420        // the panel's position, so the panel is still in the right dock.
11421        workspace.update_in(cx, |workspace, window, cx| {
11422            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11423        });
11424
11425        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11426        workspace.update(cx, |workspace, cx| {
11427            assert!(workspace.right_dock().read(cx).is_open());
11428            assert_eq!(panel.read(cx).position, DockPosition::Right);
11429        });
11430    }
11431
11432    #[gpui::test]
11433    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11434        init_test(cx);
11435
11436        let fs = FakeFs::new(cx.executor());
11437        let project = Project::test(fs, [], cx).await;
11438        let (workspace, cx) =
11439            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11440
11441        let item_1 = cx.new(|cx| {
11442            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11443        });
11444        workspace.update_in(cx, |workspace, window, cx| {
11445            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11446            workspace.move_item_to_pane_in_direction(
11447                &MoveItemToPaneInDirection {
11448                    direction: SplitDirection::Right,
11449                    focus: true,
11450                    clone: false,
11451                },
11452                window,
11453                cx,
11454            );
11455            workspace.move_item_to_pane_at_index(
11456                &MoveItemToPane {
11457                    destination: 3,
11458                    focus: true,
11459                    clone: false,
11460                },
11461                window,
11462                cx,
11463            );
11464
11465            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11466            assert_eq!(
11467                pane_items_paths(&workspace.active_pane, cx),
11468                vec!["first.txt".to_string()],
11469                "Single item was not moved anywhere"
11470            );
11471        });
11472
11473        let item_2 = cx.new(|cx| {
11474            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11475        });
11476        workspace.update_in(cx, |workspace, window, cx| {
11477            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11478            assert_eq!(
11479                pane_items_paths(&workspace.panes[0], cx),
11480                vec!["first.txt".to_string(), "second.txt".to_string()],
11481            );
11482            workspace.move_item_to_pane_in_direction(
11483                &MoveItemToPaneInDirection {
11484                    direction: SplitDirection::Right,
11485                    focus: true,
11486                    clone: false,
11487                },
11488                window,
11489                cx,
11490            );
11491
11492            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11493            assert_eq!(
11494                pane_items_paths(&workspace.panes[0], cx),
11495                vec!["first.txt".to_string()],
11496                "After moving, one item should be left in the original pane"
11497            );
11498            assert_eq!(
11499                pane_items_paths(&workspace.panes[1], cx),
11500                vec!["second.txt".to_string()],
11501                "New item should have been moved to the new pane"
11502            );
11503        });
11504
11505        let item_3 = cx.new(|cx| {
11506            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11507        });
11508        workspace.update_in(cx, |workspace, window, cx| {
11509            let original_pane = workspace.panes[0].clone();
11510            workspace.set_active_pane(&original_pane, window, cx);
11511            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11512            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11513            assert_eq!(
11514                pane_items_paths(&workspace.active_pane, cx),
11515                vec!["first.txt".to_string(), "third.txt".to_string()],
11516                "New pane should be ready to move one item out"
11517            );
11518
11519            workspace.move_item_to_pane_at_index(
11520                &MoveItemToPane {
11521                    destination: 3,
11522                    focus: true,
11523                    clone: false,
11524                },
11525                window,
11526                cx,
11527            );
11528            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11529            assert_eq!(
11530                pane_items_paths(&workspace.active_pane, cx),
11531                vec!["first.txt".to_string()],
11532                "After moving, one item should be left in the original pane"
11533            );
11534            assert_eq!(
11535                pane_items_paths(&workspace.panes[1], cx),
11536                vec!["second.txt".to_string()],
11537                "Previously created pane should be unchanged"
11538            );
11539            assert_eq!(
11540                pane_items_paths(&workspace.panes[2], cx),
11541                vec!["third.txt".to_string()],
11542                "New item should have been moved to the new pane"
11543            );
11544        });
11545    }
11546
11547    #[gpui::test]
11548    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11549        init_test(cx);
11550
11551        let fs = FakeFs::new(cx.executor());
11552        let project = Project::test(fs, [], cx).await;
11553        let (workspace, cx) =
11554            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11555
11556        let item_1 = cx.new(|cx| {
11557            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11558        });
11559        workspace.update_in(cx, |workspace, window, cx| {
11560            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11561            workspace.move_item_to_pane_in_direction(
11562                &MoveItemToPaneInDirection {
11563                    direction: SplitDirection::Right,
11564                    focus: true,
11565                    clone: true,
11566                },
11567                window,
11568                cx,
11569            );
11570            workspace.move_item_to_pane_at_index(
11571                &MoveItemToPane {
11572                    destination: 3,
11573                    focus: true,
11574                    clone: true,
11575                },
11576                window,
11577                cx,
11578            );
11579        });
11580        cx.run_until_parked();
11581
11582        workspace.update(cx, |workspace, cx| {
11583            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11584            for pane in workspace.panes() {
11585                assert_eq!(
11586                    pane_items_paths(pane, cx),
11587                    vec!["first.txt".to_string()],
11588                    "Single item exists in all panes"
11589                );
11590            }
11591        });
11592
11593        // verify that the active pane has been updated after waiting for the
11594        // pane focus event to fire and resolve
11595        workspace.read_with(cx, |workspace, _app| {
11596            assert_eq!(
11597                workspace.active_pane(),
11598                &workspace.panes[2],
11599                "The third pane should be the active one: {:?}",
11600                workspace.panes
11601            );
11602        })
11603    }
11604
11605    mod register_project_item_tests {
11606
11607        use super::*;
11608
11609        // View
11610        struct TestPngItemView {
11611            focus_handle: FocusHandle,
11612        }
11613        // Model
11614        struct TestPngItem {}
11615
11616        impl project::ProjectItem for TestPngItem {
11617            fn try_open(
11618                _project: &Entity<Project>,
11619                path: &ProjectPath,
11620                cx: &mut App,
11621            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11622                if path.path.extension().unwrap() == "png" {
11623                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11624                } else {
11625                    None
11626                }
11627            }
11628
11629            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11630                None
11631            }
11632
11633            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11634                None
11635            }
11636
11637            fn is_dirty(&self) -> bool {
11638                false
11639            }
11640        }
11641
11642        impl Item for TestPngItemView {
11643            type Event = ();
11644            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11645                "".into()
11646            }
11647        }
11648        impl EventEmitter<()> for TestPngItemView {}
11649        impl Focusable for TestPngItemView {
11650            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11651                self.focus_handle.clone()
11652            }
11653        }
11654
11655        impl Render for TestPngItemView {
11656            fn render(
11657                &mut self,
11658                _window: &mut Window,
11659                _cx: &mut Context<Self>,
11660            ) -> impl IntoElement {
11661                Empty
11662            }
11663        }
11664
11665        impl ProjectItem for TestPngItemView {
11666            type Item = TestPngItem;
11667
11668            fn for_project_item(
11669                _project: Entity<Project>,
11670                _pane: Option<&Pane>,
11671                _item: Entity<Self::Item>,
11672                _: &mut Window,
11673                cx: &mut Context<Self>,
11674            ) -> Self
11675            where
11676                Self: Sized,
11677            {
11678                Self {
11679                    focus_handle: cx.focus_handle(),
11680                }
11681            }
11682        }
11683
11684        // View
11685        struct TestIpynbItemView {
11686            focus_handle: FocusHandle,
11687        }
11688        // Model
11689        struct TestIpynbItem {}
11690
11691        impl project::ProjectItem for TestIpynbItem {
11692            fn try_open(
11693                _project: &Entity<Project>,
11694                path: &ProjectPath,
11695                cx: &mut App,
11696            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11697                if path.path.extension().unwrap() == "ipynb" {
11698                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11699                } else {
11700                    None
11701                }
11702            }
11703
11704            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11705                None
11706            }
11707
11708            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11709                None
11710            }
11711
11712            fn is_dirty(&self) -> bool {
11713                false
11714            }
11715        }
11716
11717        impl Item for TestIpynbItemView {
11718            type Event = ();
11719            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11720                "".into()
11721            }
11722        }
11723        impl EventEmitter<()> for TestIpynbItemView {}
11724        impl Focusable for TestIpynbItemView {
11725            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11726                self.focus_handle.clone()
11727            }
11728        }
11729
11730        impl Render for TestIpynbItemView {
11731            fn render(
11732                &mut self,
11733                _window: &mut Window,
11734                _cx: &mut Context<Self>,
11735            ) -> impl IntoElement {
11736                Empty
11737            }
11738        }
11739
11740        impl ProjectItem for TestIpynbItemView {
11741            type Item = TestIpynbItem;
11742
11743            fn for_project_item(
11744                _project: Entity<Project>,
11745                _pane: Option<&Pane>,
11746                _item: Entity<Self::Item>,
11747                _: &mut Window,
11748                cx: &mut Context<Self>,
11749            ) -> Self
11750            where
11751                Self: Sized,
11752            {
11753                Self {
11754                    focus_handle: cx.focus_handle(),
11755                }
11756            }
11757        }
11758
11759        struct TestAlternatePngItemView {
11760            focus_handle: FocusHandle,
11761        }
11762
11763        impl Item for TestAlternatePngItemView {
11764            type Event = ();
11765            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11766                "".into()
11767            }
11768        }
11769
11770        impl EventEmitter<()> for TestAlternatePngItemView {}
11771        impl Focusable for TestAlternatePngItemView {
11772            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11773                self.focus_handle.clone()
11774            }
11775        }
11776
11777        impl Render for TestAlternatePngItemView {
11778            fn render(
11779                &mut self,
11780                _window: &mut Window,
11781                _cx: &mut Context<Self>,
11782            ) -> impl IntoElement {
11783                Empty
11784            }
11785        }
11786
11787        impl ProjectItem for TestAlternatePngItemView {
11788            type Item = TestPngItem;
11789
11790            fn for_project_item(
11791                _project: Entity<Project>,
11792                _pane: Option<&Pane>,
11793                _item: Entity<Self::Item>,
11794                _: &mut Window,
11795                cx: &mut Context<Self>,
11796            ) -> Self
11797            where
11798                Self: Sized,
11799            {
11800                Self {
11801                    focus_handle: cx.focus_handle(),
11802                }
11803            }
11804        }
11805
11806        #[gpui::test]
11807        async fn test_register_project_item(cx: &mut TestAppContext) {
11808            init_test(cx);
11809
11810            cx.update(|cx| {
11811                register_project_item::<TestPngItemView>(cx);
11812                register_project_item::<TestIpynbItemView>(cx);
11813            });
11814
11815            let fs = FakeFs::new(cx.executor());
11816            fs.insert_tree(
11817                "/root1",
11818                json!({
11819                    "one.png": "BINARYDATAHERE",
11820                    "two.ipynb": "{ totally a notebook }",
11821                    "three.txt": "editing text, sure why not?"
11822                }),
11823            )
11824            .await;
11825
11826            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11827            let (workspace, cx) =
11828                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11829
11830            let worktree_id = project.update(cx, |project, cx| {
11831                project.worktrees(cx).next().unwrap().read(cx).id()
11832            });
11833
11834            let handle = workspace
11835                .update_in(cx, |workspace, window, cx| {
11836                    let project_path = (worktree_id, rel_path("one.png"));
11837                    workspace.open_path(project_path, None, true, window, cx)
11838                })
11839                .await
11840                .unwrap();
11841
11842            // Now we can check if the handle we got back errored or not
11843            assert_eq!(
11844                handle.to_any_view().entity_type(),
11845                TypeId::of::<TestPngItemView>()
11846            );
11847
11848            let handle = workspace
11849                .update_in(cx, |workspace, window, cx| {
11850                    let project_path = (worktree_id, rel_path("two.ipynb"));
11851                    workspace.open_path(project_path, None, true, window, cx)
11852                })
11853                .await
11854                .unwrap();
11855
11856            assert_eq!(
11857                handle.to_any_view().entity_type(),
11858                TypeId::of::<TestIpynbItemView>()
11859            );
11860
11861            let handle = workspace
11862                .update_in(cx, |workspace, window, cx| {
11863                    let project_path = (worktree_id, rel_path("three.txt"));
11864                    workspace.open_path(project_path, None, true, window, cx)
11865                })
11866                .await;
11867            assert!(handle.is_err());
11868        }
11869
11870        #[gpui::test]
11871        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11872            init_test(cx);
11873
11874            cx.update(|cx| {
11875                register_project_item::<TestPngItemView>(cx);
11876                register_project_item::<TestAlternatePngItemView>(cx);
11877            });
11878
11879            let fs = FakeFs::new(cx.executor());
11880            fs.insert_tree(
11881                "/root1",
11882                json!({
11883                    "one.png": "BINARYDATAHERE",
11884                    "two.ipynb": "{ totally a notebook }",
11885                    "three.txt": "editing text, sure why not?"
11886                }),
11887            )
11888            .await;
11889            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11890            let (workspace, cx) =
11891                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11892            let worktree_id = project.update(cx, |project, cx| {
11893                project.worktrees(cx).next().unwrap().read(cx).id()
11894            });
11895
11896            let handle = workspace
11897                .update_in(cx, |workspace, window, cx| {
11898                    let project_path = (worktree_id, rel_path("one.png"));
11899                    workspace.open_path(project_path, None, true, window, cx)
11900                })
11901                .await
11902                .unwrap();
11903
11904            // This _must_ be the second item registered
11905            assert_eq!(
11906                handle.to_any_view().entity_type(),
11907                TypeId::of::<TestAlternatePngItemView>()
11908            );
11909
11910            let handle = workspace
11911                .update_in(cx, |workspace, window, cx| {
11912                    let project_path = (worktree_id, rel_path("three.txt"));
11913                    workspace.open_path(project_path, None, true, window, cx)
11914                })
11915                .await;
11916            assert!(handle.is_err());
11917        }
11918    }
11919
11920    #[gpui::test]
11921    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11922        init_test(cx);
11923
11924        let fs = FakeFs::new(cx.executor());
11925        let project = Project::test(fs, [], cx).await;
11926        let (workspace, _cx) =
11927            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11928
11929        // Test with status bar shown (default)
11930        workspace.read_with(cx, |workspace, cx| {
11931            let visible = workspace.status_bar_visible(cx);
11932            assert!(visible, "Status bar should be visible by default");
11933        });
11934
11935        // Test with status bar hidden
11936        cx.update_global(|store: &mut SettingsStore, cx| {
11937            store.update_user_settings(cx, |settings| {
11938                settings.status_bar.get_or_insert_default().show = Some(false);
11939            });
11940        });
11941
11942        workspace.read_with(cx, |workspace, cx| {
11943            let visible = workspace.status_bar_visible(cx);
11944            assert!(!visible, "Status bar should be hidden when show is false");
11945        });
11946
11947        // Test with status bar shown explicitly
11948        cx.update_global(|store: &mut SettingsStore, cx| {
11949            store.update_user_settings(cx, |settings| {
11950                settings.status_bar.get_or_insert_default().show = Some(true);
11951            });
11952        });
11953
11954        workspace.read_with(cx, |workspace, cx| {
11955            let visible = workspace.status_bar_visible(cx);
11956            assert!(visible, "Status bar should be visible when show is true");
11957        });
11958    }
11959
11960    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11961        pane.read(cx)
11962            .items()
11963            .flat_map(|item| {
11964                item.project_paths(cx)
11965                    .into_iter()
11966                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11967            })
11968            .collect()
11969    }
11970
11971    pub fn init_test(cx: &mut TestAppContext) {
11972        cx.update(|cx| {
11973            let settings_store = SettingsStore::test(cx);
11974            cx.set_global(settings_store);
11975            theme::init(theme::LoadThemes::JustBase, cx);
11976        });
11977    }
11978
11979    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11980        let item = TestProjectItem::new(id, path, cx);
11981        item.update(cx, |item, _| {
11982            item.is_dirty = true;
11983        });
11984        item
11985    }
11986}