workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12mod security_modal;
   13pub mod shared_screen;
   14mod status_bar;
   15pub mod tasks;
   16mod theme_preview;
   17mod toast_layer;
   18mod toolbar;
   19pub mod utility_pane;
   20pub mod welcome;
   21mod workspace_settings;
   22
   23pub use crate::notifications::NotificationFrame;
   24pub use dock::Panel;
   25pub use path_list::PathList;
   26pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   27
   28use anyhow::{Context as _, Result, anyhow};
   29use call::{ActiveCall, call_settings::CallSettings};
   30use client::{
   31    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   32    proto::{self, ErrorCode, PanelId, PeerId},
   33};
   34use collections::{HashMap, HashSet, hash_map};
   35use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   36use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   37use futures::{
   38    Future, FutureExt, StreamExt,
   39    channel::{
   40        mpsc::{self, UnboundedReceiver, UnboundedSender},
   41        oneshot,
   42    },
   43    future::{Shared, try_join_all},
   44};
   45use gpui::{
   46    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   47    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   48    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   49    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   50    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   51    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   52};
   53pub use history_manager::*;
   54pub use item::{
   55    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   56    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   57};
   58use itertools::Itertools;
   59use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   60pub use modal_layer::*;
   61use node_runtime::NodeRuntime;
   62use notifications::{
   63    DetachAndPromptErr, Notifications, dismiss_app_notification,
   64    simple_message_notification::MessageNotification,
   65};
   66pub use pane::*;
   67pub use pane_group::{
   68    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   69    SplitDirection,
   70};
   71use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   72pub use persistence::{
   73    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   74    model::{ItemId, SerializedWorkspaceLocation},
   75};
   76use postage::stream::Stream;
   77use project::{
   78    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   79    WorktreeSettings,
   80    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   81    project_settings::ProjectSettings,
   82    toolchain_store::ToolchainStoreEvent,
   83    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   84};
   85use remote::{
   86    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   87    remote_client::ConnectionIdentifier,
   88};
   89use schemars::JsonSchema;
   90use serde::Deserialize;
   91use session::AppSession;
   92use settings::{
   93    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   94};
   95use shared_screen::SharedScreen;
   96use sqlez::{
   97    bindable::{Bind, Column, StaticColumnCount},
   98    statement::Statement,
   99};
  100use status_bar::StatusBar;
  101pub use status_bar::StatusItemView;
  102use std::{
  103    any::TypeId,
  104    borrow::Cow,
  105    cell::RefCell,
  106    cmp,
  107    collections::{VecDeque, hash_map::DefaultHasher},
  108    env,
  109    hash::{Hash, Hasher},
  110    path::{Path, PathBuf},
  111    process::ExitStatus,
  112    rc::Rc,
  113    sync::{
  114        Arc, LazyLock, Weak,
  115        atomic::{AtomicBool, AtomicUsize},
  116    },
  117    time::Duration,
  118};
  119use task::{DebugScenario, SpawnInTerminal, TaskContext};
  120use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  121pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  122pub use ui;
  123use ui::{Window, prelude::*};
  124use util::{
  125    ResultExt, TryFutureExt,
  126    paths::{PathStyle, SanitizedPath},
  127    rel_path::RelPath,
  128    serde::default_true,
  129};
  130use uuid::Uuid;
  131pub use workspace_settings::{
  132    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  133    WorkspaceSettings,
  134};
  135use zed_actions::{Spawn, feedback::FileBugReport};
  136
  137use crate::{
  138    item::ItemBufferKind,
  139    notifications::NotificationId,
  140    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  141};
  142use crate::{
  143    persistence::{
  144        SerializedAxis,
  145        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  146    },
  147    security_modal::SecurityModal,
  148    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  149};
  150
  151pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  152
  153static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  154    env::var("ZED_WINDOW_SIZE")
  155        .ok()
  156        .as_deref()
  157        .and_then(parse_pixel_size_env_var)
  158});
  159
  160static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  161    env::var("ZED_WINDOW_POSITION")
  162        .ok()
  163        .as_deref()
  164        .and_then(parse_pixel_position_env_var)
  165});
  166
  167pub trait TerminalProvider {
  168    fn spawn(
  169        &self,
  170        task: SpawnInTerminal,
  171        window: &mut Window,
  172        cx: &mut App,
  173    ) -> Task<Option<Result<ExitStatus>>>;
  174}
  175
  176pub trait DebuggerProvider {
  177    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  178    fn start_session(
  179        &self,
  180        definition: DebugScenario,
  181        task_context: TaskContext,
  182        active_buffer: Option<Entity<Buffer>>,
  183        worktree_id: Option<WorktreeId>,
  184        window: &mut Window,
  185        cx: &mut App,
  186    );
  187
  188    fn spawn_task_or_modal(
  189        &self,
  190        workspace: &mut Workspace,
  191        action: &Spawn,
  192        window: &mut Window,
  193        cx: &mut Context<Workspace>,
  194    );
  195
  196    fn task_scheduled(&self, cx: &mut App);
  197    fn debug_scenario_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  199
  200    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  201}
  202
  203actions!(
  204    workspace,
  205    [
  206        /// Activates the next pane in the workspace.
  207        ActivateNextPane,
  208        /// Activates the previous pane in the workspace.
  209        ActivatePreviousPane,
  210        /// Switches to the next window.
  211        ActivateNextWindow,
  212        /// Switches to the previous window.
  213        ActivatePreviousWindow,
  214        /// Adds a folder to the current project.
  215        AddFolderToProject,
  216        /// Clears all notifications.
  217        ClearAllNotifications,
  218        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  219        ClearNavigationHistory,
  220        /// Closes the active dock.
  221        CloseActiveDock,
  222        /// Closes all docks.
  223        CloseAllDocks,
  224        /// Toggles all docks.
  225        ToggleAllDocks,
  226        /// Closes the current window.
  227        CloseWindow,
  228        /// Opens the feedback dialog.
  229        Feedback,
  230        /// Follows the next collaborator in the session.
  231        FollowNextCollaborator,
  232        /// Moves the focused panel to the next position.
  233        MoveFocusedPanelToNextPosition,
  234        /// Opens a new terminal in the center.
  235        NewCenterTerminal,
  236        /// Creates a new file.
  237        NewFile,
  238        /// Creates a new file in a vertical split.
  239        NewFileSplitVertical,
  240        /// Creates a new file in a horizontal split.
  241        NewFileSplitHorizontal,
  242        /// Opens a new search.
  243        NewSearch,
  244        /// Opens a new terminal.
  245        NewTerminal,
  246        /// Opens a new window.
  247        NewWindow,
  248        /// Opens a file or directory.
  249        Open,
  250        /// Opens multiple files.
  251        OpenFiles,
  252        /// Opens the current location in terminal.
  253        OpenInTerminal,
  254        /// Opens the component preview.
  255        OpenComponentPreview,
  256        /// Reloads the active item.
  257        ReloadActiveItem,
  258        /// Resets the active dock to its default size.
  259        ResetActiveDockSize,
  260        /// Resets all open docks to their default sizes.
  261        ResetOpenDocksSize,
  262        /// Reloads the application
  263        Reload,
  264        /// Saves the current file with a new name.
  265        SaveAs,
  266        /// Saves without formatting.
  267        SaveWithoutFormat,
  268        /// Shuts down all debug adapters.
  269        ShutdownDebugAdapters,
  270        /// Suppresses the current notification.
  271        SuppressNotification,
  272        /// Toggles the bottom dock.
  273        ToggleBottomDock,
  274        /// Toggles centered layout mode.
  275        ToggleCenteredLayout,
  276        /// Toggles edit prediction feature globally for all files.
  277        ToggleEditPrediction,
  278        /// Toggles the left dock.
  279        ToggleLeftDock,
  280        /// Toggles the right dock.
  281        ToggleRightDock,
  282        /// Toggles zoom on the active pane.
  283        ToggleZoom,
  284        /// Zooms in on the active pane.
  285        ZoomIn,
  286        /// Zooms out of the active pane.
  287        ZoomOut,
  288        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  289        /// If the modal is shown already, closes it without trusting any worktree.
  290        ToggleWorktreeSecurity,
  291        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  292        /// Requires restart to take effect on already opened projects.
  293        ClearTrustedWorktrees,
  294        /// Stops following a collaborator.
  295        Unfollow,
  296        /// Restores the banner.
  297        RestoreBanner,
  298        /// Toggles expansion of the selected item.
  299        ToggleExpandItem,
  300    ]
  301);
  302
  303/// Activates a specific pane by its index.
  304#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  305#[action(namespace = workspace)]
  306pub struct ActivatePane(pub usize);
  307
  308/// Moves an item to a specific pane by index.
  309#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  310#[action(namespace = workspace)]
  311#[serde(deny_unknown_fields)]
  312pub struct MoveItemToPane {
  313    #[serde(default = "default_1")]
  314    pub destination: usize,
  315    #[serde(default = "default_true")]
  316    pub focus: bool,
  317    #[serde(default)]
  318    pub clone: bool,
  319}
  320
  321fn default_1() -> usize {
  322    1
  323}
  324
  325/// Moves an item to a pane in the specified direction.
  326#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  327#[action(namespace = workspace)]
  328#[serde(deny_unknown_fields)]
  329pub struct MoveItemToPaneInDirection {
  330    #[serde(default = "default_right")]
  331    pub direction: SplitDirection,
  332    #[serde(default = "default_true")]
  333    pub focus: bool,
  334    #[serde(default)]
  335    pub clone: bool,
  336}
  337
  338/// Creates a new file in a split of the desired direction.
  339#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct NewFileSplit(pub SplitDirection);
  343
  344fn default_right() -> SplitDirection {
  345    SplitDirection::Right
  346}
  347
  348/// Saves all open files in the workspace.
  349#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  350#[action(namespace = workspace)]
  351#[serde(deny_unknown_fields)]
  352pub struct SaveAll {
  353    #[serde(default)]
  354    pub save_intent: Option<SaveIntent>,
  355}
  356
  357/// Saves the current file with the specified options.
  358#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct Save {
  362    #[serde(default)]
  363    pub save_intent: Option<SaveIntent>,
  364}
  365
  366/// Closes all items and panes in the workspace.
  367#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct CloseAllItemsAndPanes {
  371    #[serde(default)]
  372    pub save_intent: Option<SaveIntent>,
  373}
  374
  375/// Closes all inactive tabs and panes in the workspace.
  376#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct CloseInactiveTabsAndPanes {
  380    #[serde(default)]
  381    pub save_intent: Option<SaveIntent>,
  382}
  383
  384/// Sends a sequence of keystrokes to the active element.
  385#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387pub struct SendKeystrokes(pub String);
  388
  389actions!(
  390    project_symbols,
  391    [
  392        /// Toggles the project symbols search.
  393        #[action(name = "Toggle")]
  394        ToggleProjectSymbols
  395    ]
  396);
  397
  398/// Toggles the file finder interface.
  399#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  400#[action(namespace = file_finder, name = "Toggle")]
  401#[serde(deny_unknown_fields)]
  402pub struct ToggleFileFinder {
  403    #[serde(default)]
  404    pub separate_history: bool,
  405}
  406
  407/// Increases size of a currently focused dock by a given amount of pixels.
  408#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  409#[action(namespace = workspace)]
  410#[serde(deny_unknown_fields)]
  411pub struct IncreaseActiveDockSize {
  412    /// For 0px parameter, uses UI font size value.
  413    #[serde(default)]
  414    pub px: u32,
  415}
  416
  417/// Decreases size of a currently focused dock by a given amount of pixels.
  418#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct DecreaseActiveDockSize {
  422    /// For 0px parameter, uses UI font size value.
  423    #[serde(default)]
  424    pub px: u32,
  425}
  426
  427/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  428#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  429#[action(namespace = workspace)]
  430#[serde(deny_unknown_fields)]
  431pub struct IncreaseOpenDocksSize {
  432    /// For 0px parameter, uses UI font size value.
  433    #[serde(default)]
  434    pub px: u32,
  435}
  436
  437/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  438#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440#[serde(deny_unknown_fields)]
  441pub struct DecreaseOpenDocksSize {
  442    /// For 0px parameter, uses UI font size value.
  443    #[serde(default)]
  444    pub px: u32,
  445}
  446
  447actions!(
  448    workspace,
  449    [
  450        /// Activates the pane to the left.
  451        ActivatePaneLeft,
  452        /// Activates the pane to the right.
  453        ActivatePaneRight,
  454        /// Activates the pane above.
  455        ActivatePaneUp,
  456        /// Activates the pane below.
  457        ActivatePaneDown,
  458        /// Swaps the current pane with the one to the left.
  459        SwapPaneLeft,
  460        /// Swaps the current pane with the one to the right.
  461        SwapPaneRight,
  462        /// Swaps the current pane with the one above.
  463        SwapPaneUp,
  464        /// Swaps the current pane with the one below.
  465        SwapPaneDown,
  466        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  467        SwapPaneAdjacent,
  468        /// Move the current pane to be at the far left.
  469        MovePaneLeft,
  470        /// Move the current pane to be at the far right.
  471        MovePaneRight,
  472        /// Move the current pane to be at the very top.
  473        MovePaneUp,
  474        /// Move the current pane to be at the very bottom.
  475        MovePaneDown,
  476    ]
  477);
  478
  479#[derive(PartialEq, Eq, Debug)]
  480pub enum CloseIntent {
  481    /// Quit the program entirely.
  482    Quit,
  483    /// Close a window.
  484    CloseWindow,
  485    /// Replace the workspace in an existing window.
  486    ReplaceWindow,
  487}
  488
  489#[derive(Clone)]
  490pub struct Toast {
  491    id: NotificationId,
  492    msg: Cow<'static, str>,
  493    autohide: bool,
  494    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  495}
  496
  497impl Toast {
  498    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  499        Toast {
  500            id,
  501            msg: msg.into(),
  502            on_click: None,
  503            autohide: false,
  504        }
  505    }
  506
  507    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  508    where
  509        M: Into<Cow<'static, str>>,
  510        F: Fn(&mut Window, &mut App) + 'static,
  511    {
  512        self.on_click = Some((message.into(), Arc::new(on_click)));
  513        self
  514    }
  515
  516    pub fn autohide(mut self) -> Self {
  517        self.autohide = true;
  518        self
  519    }
  520}
  521
  522impl PartialEq for Toast {
  523    fn eq(&self, other: &Self) -> bool {
  524        self.id == other.id
  525            && self.msg == other.msg
  526            && self.on_click.is_some() == other.on_click.is_some()
  527    }
  528}
  529
  530/// Opens a new terminal with the specified working directory.
  531#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  532#[action(namespace = workspace)]
  533#[serde(deny_unknown_fields)]
  534pub struct OpenTerminal {
  535    pub working_directory: PathBuf,
  536}
  537
  538#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  539pub struct WorkspaceId(i64);
  540
  541impl StaticColumnCount for WorkspaceId {}
  542impl Bind for WorkspaceId {
  543    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  544        self.0.bind(statement, start_index)
  545    }
  546}
  547impl Column for WorkspaceId {
  548    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  549        i64::column(statement, start_index)
  550            .map(|(i, next_index)| (Self(i), next_index))
  551            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  552    }
  553}
  554impl From<WorkspaceId> for i64 {
  555    fn from(val: WorkspaceId) -> Self {
  556        val.0
  557    }
  558}
  559
  560fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  561    let paths = cx.prompt_for_paths(options);
  562    cx.spawn(
  563        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  564            Ok(Some(paths)) => {
  565                cx.update(|cx| {
  566                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  567                })
  568                .ok();
  569            }
  570            Ok(None) => {}
  571            Err(err) => {
  572                util::log_err(&err);
  573                cx.update(|cx| {
  574                    if let Some(workspace_window) = cx
  575                        .active_window()
  576                        .and_then(|window| window.downcast::<Workspace>())
  577                    {
  578                        workspace_window
  579                            .update(cx, |workspace, _, cx| {
  580                                workspace.show_portal_error(err.to_string(), cx);
  581                            })
  582                            .ok();
  583                    }
  584                })
  585                .ok();
  586            }
  587        },
  588    )
  589    .detach();
  590}
  591
  592pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  593    component::init();
  594    theme_preview::init(cx);
  595    toast_layer::init(cx);
  596    history_manager::init(cx);
  597
  598    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  599        .on_action(|_: &Reload, cx| reload(cx))
  600        .on_action({
  601            let app_state = Arc::downgrade(&app_state);
  602            move |_: &Open, cx: &mut App| {
  603                if let Some(app_state) = app_state.upgrade() {
  604                    prompt_and_open_paths(
  605                        app_state,
  606                        PathPromptOptions {
  607                            files: true,
  608                            directories: true,
  609                            multiple: true,
  610                            prompt: None,
  611                        },
  612                        cx,
  613                    );
  614                }
  615            }
  616        })
  617        .on_action({
  618            let app_state = Arc::downgrade(&app_state);
  619            move |_: &OpenFiles, cx: &mut App| {
  620                let directories = cx.can_select_mixed_files_and_dirs();
  621                if let Some(app_state) = app_state.upgrade() {
  622                    prompt_and_open_paths(
  623                        app_state,
  624                        PathPromptOptions {
  625                            files: true,
  626                            directories,
  627                            multiple: true,
  628                            prompt: None,
  629                        },
  630                        cx,
  631                    );
  632                }
  633            }
  634        });
  635}
  636
  637type BuildProjectItemFn =
  638    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  639
  640type BuildProjectItemForPathFn =
  641    fn(
  642        &Entity<Project>,
  643        &ProjectPath,
  644        &mut Window,
  645        &mut App,
  646    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  647
  648#[derive(Clone, Default)]
  649struct ProjectItemRegistry {
  650    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  651    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  652}
  653
  654impl ProjectItemRegistry {
  655    fn register<T: ProjectItem>(&mut self) {
  656        self.build_project_item_fns_by_type.insert(
  657            TypeId::of::<T::Item>(),
  658            |item, project, pane, window, cx| {
  659                let item = item.downcast().unwrap();
  660                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  661                    as Box<dyn ItemHandle>
  662            },
  663        );
  664        self.build_project_item_for_path_fns
  665            .push(|project, project_path, window, cx| {
  666                let project_path = project_path.clone();
  667                let is_file = project
  668                    .read(cx)
  669                    .entry_for_path(&project_path, cx)
  670                    .is_some_and(|entry| entry.is_file());
  671                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  672                let is_local = project.read(cx).is_local();
  673                let project_item =
  674                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  675                let project = project.clone();
  676                Some(window.spawn(cx, async move |cx| {
  677                    match project_item.await.with_context(|| {
  678                        format!(
  679                            "opening project path {:?}",
  680                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  681                        )
  682                    }) {
  683                        Ok(project_item) => {
  684                            let project_item = project_item;
  685                            let project_entry_id: Option<ProjectEntryId> =
  686                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  687                            let build_workspace_item = Box::new(
  688                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  689                                    Box::new(cx.new(|cx| {
  690                                        T::for_project_item(
  691                                            project,
  692                                            Some(pane),
  693                                            project_item,
  694                                            window,
  695                                            cx,
  696                                        )
  697                                    })) as Box<dyn ItemHandle>
  698                                },
  699                            ) as Box<_>;
  700                            Ok((project_entry_id, build_workspace_item))
  701                        }
  702                        Err(e) => {
  703                            log::warn!("Failed to open a project item: {e:#}");
  704                            if e.error_code() == ErrorCode::Internal {
  705                                if let Some(abs_path) =
  706                                    entry_abs_path.as_deref().filter(|_| is_file)
  707                                {
  708                                    if let Some(broken_project_item_view) =
  709                                        cx.update(|window, cx| {
  710                                            T::for_broken_project_item(
  711                                                abs_path, is_local, &e, window, cx,
  712                                            )
  713                                        })?
  714                                    {
  715                                        let build_workspace_item = Box::new(
  716                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  717                                                cx.new(|_| broken_project_item_view).boxed_clone()
  718                                            },
  719                                        )
  720                                        as Box<_>;
  721                                        return Ok((None, build_workspace_item));
  722                                    }
  723                                }
  724                            }
  725                            Err(e)
  726                        }
  727                    }
  728                }))
  729            });
  730    }
  731
  732    fn open_path(
  733        &self,
  734        project: &Entity<Project>,
  735        path: &ProjectPath,
  736        window: &mut Window,
  737        cx: &mut App,
  738    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  739        let Some(open_project_item) = self
  740            .build_project_item_for_path_fns
  741            .iter()
  742            .rev()
  743            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  744        else {
  745            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  746        };
  747        open_project_item
  748    }
  749
  750    fn build_item<T: project::ProjectItem>(
  751        &self,
  752        item: Entity<T>,
  753        project: Entity<Project>,
  754        pane: Option<&Pane>,
  755        window: &mut Window,
  756        cx: &mut App,
  757    ) -> Option<Box<dyn ItemHandle>> {
  758        let build = self
  759            .build_project_item_fns_by_type
  760            .get(&TypeId::of::<T>())?;
  761        Some(build(item.into_any(), project, pane, window, cx))
  762    }
  763}
  764
  765type WorkspaceItemBuilder =
  766    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  767
  768impl Global for ProjectItemRegistry {}
  769
  770/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  771/// items will get a chance to open the file, starting from the project item that
  772/// was added last.
  773pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  774    cx.default_global::<ProjectItemRegistry>().register::<I>();
  775}
  776
  777#[derive(Default)]
  778pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  779
  780struct FollowableViewDescriptor {
  781    from_state_proto: fn(
  782        Entity<Workspace>,
  783        ViewId,
  784        &mut Option<proto::view::Variant>,
  785        &mut Window,
  786        &mut App,
  787    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  788    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  789}
  790
  791impl Global for FollowableViewRegistry {}
  792
  793impl FollowableViewRegistry {
  794    pub fn register<I: FollowableItem>(cx: &mut App) {
  795        cx.default_global::<Self>().0.insert(
  796            TypeId::of::<I>(),
  797            FollowableViewDescriptor {
  798                from_state_proto: |workspace, id, state, window, cx| {
  799                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  800                        cx.foreground_executor()
  801                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  802                    })
  803                },
  804                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  805            },
  806        );
  807    }
  808
  809    pub fn from_state_proto(
  810        workspace: Entity<Workspace>,
  811        view_id: ViewId,
  812        mut state: Option<proto::view::Variant>,
  813        window: &mut Window,
  814        cx: &mut App,
  815    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  816        cx.update_default_global(|this: &mut Self, cx| {
  817            this.0.values().find_map(|descriptor| {
  818                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  819            })
  820        })
  821    }
  822
  823    pub fn to_followable_view(
  824        view: impl Into<AnyView>,
  825        cx: &App,
  826    ) -> Option<Box<dyn FollowableItemHandle>> {
  827        let this = cx.try_global::<Self>()?;
  828        let view = view.into();
  829        let descriptor = this.0.get(&view.entity_type())?;
  830        Some((descriptor.to_followable_view)(&view))
  831    }
  832}
  833
  834#[derive(Copy, Clone)]
  835struct SerializableItemDescriptor {
  836    deserialize: fn(
  837        Entity<Project>,
  838        WeakEntity<Workspace>,
  839        WorkspaceId,
  840        ItemId,
  841        &mut Window,
  842        &mut Context<Pane>,
  843    ) -> Task<Result<Box<dyn ItemHandle>>>,
  844    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  845    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  846}
  847
  848#[derive(Default)]
  849struct SerializableItemRegistry {
  850    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  851    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  852}
  853
  854impl Global for SerializableItemRegistry {}
  855
  856impl SerializableItemRegistry {
  857    fn deserialize(
  858        item_kind: &str,
  859        project: Entity<Project>,
  860        workspace: WeakEntity<Workspace>,
  861        workspace_id: WorkspaceId,
  862        item_item: ItemId,
  863        window: &mut Window,
  864        cx: &mut Context<Pane>,
  865    ) -> Task<Result<Box<dyn ItemHandle>>> {
  866        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  867            return Task::ready(Err(anyhow!(
  868                "cannot deserialize {}, descriptor not found",
  869                item_kind
  870            )));
  871        };
  872
  873        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  874    }
  875
  876    fn cleanup(
  877        item_kind: &str,
  878        workspace_id: WorkspaceId,
  879        loaded_items: Vec<ItemId>,
  880        window: &mut Window,
  881        cx: &mut App,
  882    ) -> Task<Result<()>> {
  883        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  884            return Task::ready(Err(anyhow!(
  885                "cannot cleanup {}, descriptor not found",
  886                item_kind
  887            )));
  888        };
  889
  890        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  891    }
  892
  893    fn view_to_serializable_item_handle(
  894        view: AnyView,
  895        cx: &App,
  896    ) -> Option<Box<dyn SerializableItemHandle>> {
  897        let this = cx.try_global::<Self>()?;
  898        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  899        Some((descriptor.view_to_serializable_item)(view))
  900    }
  901
  902    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  903        let this = cx.try_global::<Self>()?;
  904        this.descriptors_by_kind.get(item_kind).copied()
  905    }
  906}
  907
  908pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  909    let serialized_item_kind = I::serialized_item_kind();
  910
  911    let registry = cx.default_global::<SerializableItemRegistry>();
  912    let descriptor = SerializableItemDescriptor {
  913        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  914            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  915            cx.foreground_executor()
  916                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  917        },
  918        cleanup: |workspace_id, loaded_items, window, cx| {
  919            I::cleanup(workspace_id, loaded_items, window, cx)
  920        },
  921        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  922    };
  923    registry
  924        .descriptors_by_kind
  925        .insert(Arc::from(serialized_item_kind), descriptor);
  926    registry
  927        .descriptors_by_type
  928        .insert(TypeId::of::<I>(), descriptor);
  929}
  930
  931pub struct AppState {
  932    pub languages: Arc<LanguageRegistry>,
  933    pub client: Arc<Client>,
  934    pub user_store: Entity<UserStore>,
  935    pub workspace_store: Entity<WorkspaceStore>,
  936    pub fs: Arc<dyn fs::Fs>,
  937    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  938    pub node_runtime: NodeRuntime,
  939    pub session: Entity<AppSession>,
  940}
  941
  942struct GlobalAppState(Weak<AppState>);
  943
  944impl Global for GlobalAppState {}
  945
  946pub struct WorkspaceStore {
  947    workspaces: HashSet<WindowHandle<Workspace>>,
  948    client: Arc<Client>,
  949    _subscriptions: Vec<client::Subscription>,
  950}
  951
  952#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  953pub enum CollaboratorId {
  954    PeerId(PeerId),
  955    Agent,
  956}
  957
  958impl From<PeerId> for CollaboratorId {
  959    fn from(peer_id: PeerId) -> Self {
  960        CollaboratorId::PeerId(peer_id)
  961    }
  962}
  963
  964impl From<&PeerId> for CollaboratorId {
  965    fn from(peer_id: &PeerId) -> Self {
  966        CollaboratorId::PeerId(*peer_id)
  967    }
  968}
  969
  970#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  971struct Follower {
  972    project_id: Option<u64>,
  973    peer_id: PeerId,
  974}
  975
  976impl AppState {
  977    #[track_caller]
  978    pub fn global(cx: &App) -> Weak<Self> {
  979        cx.global::<GlobalAppState>().0.clone()
  980    }
  981    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  982        cx.try_global::<GlobalAppState>()
  983            .map(|state| state.0.clone())
  984    }
  985    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  986        cx.set_global(GlobalAppState(state));
  987    }
  988
  989    #[cfg(any(test, feature = "test-support"))]
  990    pub fn test(cx: &mut App) -> Arc<Self> {
  991        use fs::Fs;
  992        use node_runtime::NodeRuntime;
  993        use session::Session;
  994        use settings::SettingsStore;
  995
  996        if !cx.has_global::<SettingsStore>() {
  997            let settings_store = SettingsStore::test(cx);
  998            cx.set_global(settings_store);
  999        }
 1000
 1001        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1002        <dyn Fs>::set_global(fs.clone(), cx);
 1003        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1004        let clock = Arc::new(clock::FakeSystemClock::new());
 1005        let http_client = http_client::FakeHttpClient::with_404_response();
 1006        let client = Client::new(clock, http_client, cx);
 1007        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1008        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1009        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1010
 1011        theme::init(theme::LoadThemes::JustBase, cx);
 1012        client::init(&client, cx);
 1013
 1014        Arc::new(Self {
 1015            client,
 1016            fs,
 1017            languages,
 1018            user_store,
 1019            workspace_store,
 1020            node_runtime: NodeRuntime::unavailable(),
 1021            build_window_options: |_, _| Default::default(),
 1022            session,
 1023        })
 1024    }
 1025}
 1026
 1027struct DelayedDebouncedEditAction {
 1028    task: Option<Task<()>>,
 1029    cancel_channel: Option<oneshot::Sender<()>>,
 1030}
 1031
 1032impl DelayedDebouncedEditAction {
 1033    fn new() -> DelayedDebouncedEditAction {
 1034        DelayedDebouncedEditAction {
 1035            task: None,
 1036            cancel_channel: None,
 1037        }
 1038    }
 1039
 1040    fn fire_new<F>(
 1041        &mut self,
 1042        delay: Duration,
 1043        window: &mut Window,
 1044        cx: &mut Context<Workspace>,
 1045        func: F,
 1046    ) where
 1047        F: 'static
 1048            + Send
 1049            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1050    {
 1051        if let Some(channel) = self.cancel_channel.take() {
 1052            _ = channel.send(());
 1053        }
 1054
 1055        let (sender, mut receiver) = oneshot::channel::<()>();
 1056        self.cancel_channel = Some(sender);
 1057
 1058        let previous_task = self.task.take();
 1059        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1060            let mut timer = cx.background_executor().timer(delay).fuse();
 1061            if let Some(previous_task) = previous_task {
 1062                previous_task.await;
 1063            }
 1064
 1065            futures::select_biased! {
 1066                _ = receiver => return,
 1067                    _ = timer => {}
 1068            }
 1069
 1070            if let Some(result) = workspace
 1071                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1072                .log_err()
 1073            {
 1074                result.await.log_err();
 1075            }
 1076        }));
 1077    }
 1078}
 1079
 1080pub enum Event {
 1081    PaneAdded(Entity<Pane>),
 1082    PaneRemoved,
 1083    ItemAdded {
 1084        item: Box<dyn ItemHandle>,
 1085    },
 1086    ActiveItemChanged,
 1087    ItemRemoved {
 1088        item_id: EntityId,
 1089    },
 1090    UserSavedItem {
 1091        pane: WeakEntity<Pane>,
 1092        item: Box<dyn WeakItemHandle>,
 1093        save_intent: SaveIntent,
 1094    },
 1095    ContactRequestedJoin(u64),
 1096    WorkspaceCreated(WeakEntity<Workspace>),
 1097    OpenBundledFile {
 1098        text: Cow<'static, str>,
 1099        title: &'static str,
 1100        language: &'static str,
 1101    },
 1102    ZoomChanged,
 1103    ModalOpened,
 1104}
 1105
 1106#[derive(Debug)]
 1107pub enum OpenVisible {
 1108    All,
 1109    None,
 1110    OnlyFiles,
 1111    OnlyDirectories,
 1112}
 1113
 1114enum WorkspaceLocation {
 1115    // Valid local paths or SSH project to serialize
 1116    Location(SerializedWorkspaceLocation, PathList),
 1117    // No valid location found hence clear session id
 1118    DetachFromSession,
 1119    // No valid location found to serialize
 1120    None,
 1121}
 1122
 1123type PromptForNewPath = Box<
 1124    dyn Fn(
 1125        &mut Workspace,
 1126        DirectoryLister,
 1127        &mut Window,
 1128        &mut Context<Workspace>,
 1129    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1130>;
 1131
 1132type PromptForOpenPath = Box<
 1133    dyn Fn(
 1134        &mut Workspace,
 1135        DirectoryLister,
 1136        &mut Window,
 1137        &mut Context<Workspace>,
 1138    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1139>;
 1140
 1141#[derive(Default)]
 1142struct DispatchingKeystrokes {
 1143    dispatched: HashSet<Vec<Keystroke>>,
 1144    queue: VecDeque<Keystroke>,
 1145    task: Option<Shared<Task<()>>>,
 1146}
 1147
 1148/// Collects everything project-related for a certain window opened.
 1149/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1150///
 1151/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1152/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1153/// that can be used to register a global action to be triggered from any place in the window.
 1154pub struct Workspace {
 1155    weak_self: WeakEntity<Self>,
 1156    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1157    zoomed: Option<AnyWeakView>,
 1158    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1159    zoomed_position: Option<DockPosition>,
 1160    center: PaneGroup,
 1161    left_dock: Entity<Dock>,
 1162    bottom_dock: Entity<Dock>,
 1163    right_dock: Entity<Dock>,
 1164    panes: Vec<Entity<Pane>>,
 1165    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1166    active_pane: Entity<Pane>,
 1167    last_active_center_pane: Option<WeakEntity<Pane>>,
 1168    last_active_view_id: Option<proto::ViewId>,
 1169    status_bar: Entity<StatusBar>,
 1170    modal_layer: Entity<ModalLayer>,
 1171    toast_layer: Entity<ToastLayer>,
 1172    titlebar_item: Option<AnyView>,
 1173    notifications: Notifications,
 1174    suppressed_notifications: HashSet<NotificationId>,
 1175    project: Entity<Project>,
 1176    follower_states: HashMap<CollaboratorId, FollowerState>,
 1177    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1178    window_edited: bool,
 1179    last_window_title: Option<String>,
 1180    dirty_items: HashMap<EntityId, Subscription>,
 1181    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1182    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1183    database_id: Option<WorkspaceId>,
 1184    app_state: Arc<AppState>,
 1185    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1186    _subscriptions: Vec<Subscription>,
 1187    _apply_leader_updates: Task<Result<()>>,
 1188    _observe_current_user: Task<Result<()>>,
 1189    _schedule_serialize_workspace: Option<Task<()>>,
 1190    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1191    _schedule_serialize_worktree_trust: Task<()>,
 1192    pane_history_timestamp: Arc<AtomicUsize>,
 1193    bounds: Bounds<Pixels>,
 1194    pub centered_layout: bool,
 1195    bounds_save_task_queued: Option<Task<()>>,
 1196    on_prompt_for_new_path: Option<PromptForNewPath>,
 1197    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1198    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1199    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1200    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1201    _items_serializer: Task<Result<()>>,
 1202    session_id: Option<String>,
 1203    scheduled_tasks: Vec<Task<()>>,
 1204    last_open_dock_positions: Vec<DockPosition>,
 1205    removing: bool,
 1206    utility_panes: UtilityPaneState,
 1207    next_modal_placement: Option<ModalPlacement>,
 1208}
 1209
 1210impl EventEmitter<Event> for Workspace {}
 1211
 1212#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1213pub struct ViewId {
 1214    pub creator: CollaboratorId,
 1215    pub id: u64,
 1216}
 1217
 1218pub struct FollowerState {
 1219    center_pane: Entity<Pane>,
 1220    dock_pane: Option<Entity<Pane>>,
 1221    active_view_id: Option<ViewId>,
 1222    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1223}
 1224
 1225struct FollowerView {
 1226    view: Box<dyn FollowableItemHandle>,
 1227    location: Option<proto::PanelId>,
 1228}
 1229
 1230impl Workspace {
 1231    pub fn new(
 1232        workspace_id: Option<WorkspaceId>,
 1233        project: Entity<Project>,
 1234        app_state: Arc<AppState>,
 1235        window: &mut Window,
 1236        cx: &mut Context<Self>,
 1237    ) -> Self {
 1238        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1239            cx.subscribe(&trusted_worktrees, |workspace, worktrees_store, e, cx| {
 1240                if let TrustedWorktreesEvent::Trusted(..) = e {
 1241                    // Do not persist auto trusted worktrees
 1242                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1243                        let new_trusted_worktrees =
 1244                            worktrees_store.update(cx, |worktrees_store, cx| {
 1245                                worktrees_store.trusted_paths_for_serialization(cx)
 1246                            });
 1247                        let timeout = cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1248                        workspace._schedule_serialize_worktree_trust =
 1249                            cx.background_spawn(async move {
 1250                                timeout.await;
 1251                                persistence::DB
 1252                                    .save_trusted_worktrees(new_trusted_worktrees)
 1253                                    .await
 1254                                    .log_err();
 1255                            });
 1256                    }
 1257                }
 1258            })
 1259            .detach();
 1260
 1261            cx.observe_global::<SettingsStore>(|_, cx| {
 1262                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1263                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1264                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1265                            trusted_worktrees.auto_trust_all(cx);
 1266                        })
 1267                    }
 1268                }
 1269            })
 1270            .detach();
 1271        }
 1272
 1273        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1274            match event {
 1275                project::Event::RemoteIdChanged(_) => {
 1276                    this.update_window_title(window, cx);
 1277                }
 1278
 1279                project::Event::CollaboratorLeft(peer_id) => {
 1280                    this.collaborator_left(*peer_id, window, cx);
 1281                }
 1282
 1283                project::Event::WorktreeUpdatedEntries(worktree_id, _) => {
 1284                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1285                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1286                            trusted_worktrees.can_trust(
 1287                                &this.project().read(cx).worktree_store(),
 1288                                *worktree_id,
 1289                                cx,
 1290                            );
 1291                        });
 1292                    }
 1293                }
 1294
 1295                project::Event::WorktreeRemoved(_) => {
 1296                    this.update_worktree_data(window, cx);
 1297                }
 1298
 1299                project::Event::WorktreeAdded(worktree_id) => {
 1300                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1301                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1302                            trusted_worktrees.can_trust(
 1303                                &this.project().read(cx).worktree_store(),
 1304                                *worktree_id,
 1305                                cx,
 1306                            );
 1307                        });
 1308                    }
 1309                    this.update_worktree_data(window, cx);
 1310                }
 1311
 1312                project::Event::DisconnectedFromHost => {
 1313                    this.update_window_edited(window, cx);
 1314                    let leaders_to_unfollow =
 1315                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1316                    for leader_id in leaders_to_unfollow {
 1317                        this.unfollow(leader_id, window, cx);
 1318                    }
 1319                }
 1320
 1321                project::Event::DisconnectedFromSshRemote => {
 1322                    this.update_window_edited(window, cx);
 1323                }
 1324
 1325                project::Event::Closed => {
 1326                    window.remove_window();
 1327                }
 1328
 1329                project::Event::DeletedEntry(_, entry_id) => {
 1330                    for pane in this.panes.iter() {
 1331                        pane.update(cx, |pane, cx| {
 1332                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1333                        });
 1334                    }
 1335                }
 1336
 1337                project::Event::Toast {
 1338                    notification_id,
 1339                    message,
 1340                } => this.show_notification(
 1341                    NotificationId::named(notification_id.clone()),
 1342                    cx,
 1343                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1344                ),
 1345
 1346                project::Event::HideToast { notification_id } => {
 1347                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1348                }
 1349
 1350                project::Event::LanguageServerPrompt(request) => {
 1351                    struct LanguageServerPrompt;
 1352
 1353                    let mut hasher = DefaultHasher::new();
 1354                    request.lsp_name.as_str().hash(&mut hasher);
 1355                    let id = hasher.finish();
 1356
 1357                    this.show_notification(
 1358                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1359                        cx,
 1360                        |cx| {
 1361                            cx.new(|cx| {
 1362                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1363                            })
 1364                        },
 1365                    );
 1366                }
 1367
 1368                project::Event::AgentLocationChanged => {
 1369                    this.handle_agent_location_changed(window, cx)
 1370                }
 1371
 1372                _ => {}
 1373            }
 1374            cx.notify()
 1375        })
 1376        .detach();
 1377
 1378        cx.subscribe_in(
 1379            &project.read(cx).breakpoint_store(),
 1380            window,
 1381            |workspace, _, event, window, cx| match event {
 1382                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1383                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1384                    workspace.serialize_workspace(window, cx);
 1385                }
 1386                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1387            },
 1388        )
 1389        .detach();
 1390        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1391            cx.subscribe_in(
 1392                &toolchain_store,
 1393                window,
 1394                |workspace, _, event, window, cx| match event {
 1395                    ToolchainStoreEvent::CustomToolchainsModified => {
 1396                        workspace.serialize_workspace(window, cx);
 1397                    }
 1398                    _ => {}
 1399                },
 1400            )
 1401            .detach();
 1402        }
 1403
 1404        cx.on_focus_lost(window, |this, window, cx| {
 1405            let focus_handle = this.focus_handle(cx);
 1406            window.focus(&focus_handle, cx);
 1407        })
 1408        .detach();
 1409
 1410        let weak_handle = cx.entity().downgrade();
 1411        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1412
 1413        let center_pane = cx.new(|cx| {
 1414            let mut center_pane = Pane::new(
 1415                weak_handle.clone(),
 1416                project.clone(),
 1417                pane_history_timestamp.clone(),
 1418                None,
 1419                NewFile.boxed_clone(),
 1420                true,
 1421                window,
 1422                cx,
 1423            );
 1424            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1425            center_pane
 1426        });
 1427        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1428            .detach();
 1429
 1430        window.focus(&center_pane.focus_handle(cx), cx);
 1431
 1432        cx.emit(Event::PaneAdded(center_pane.clone()));
 1433
 1434        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1435        app_state.workspace_store.update(cx, |store, _| {
 1436            store.workspaces.insert(window_handle);
 1437        });
 1438
 1439        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1440        let mut connection_status = app_state.client.status();
 1441        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1442            current_user.next().await;
 1443            connection_status.next().await;
 1444            let mut stream =
 1445                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1446
 1447            while stream.recv().await.is_some() {
 1448                this.update(cx, |_, cx| cx.notify())?;
 1449            }
 1450            anyhow::Ok(())
 1451        });
 1452
 1453        // All leader updates are enqueued and then processed in a single task, so
 1454        // that each asynchronous operation can be run in order.
 1455        let (leader_updates_tx, mut leader_updates_rx) =
 1456            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1457        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1458            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1459                Self::process_leader_update(&this, leader_id, update, cx)
 1460                    .await
 1461                    .log_err();
 1462            }
 1463
 1464            Ok(())
 1465        });
 1466
 1467        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1468        let modal_layer = cx.new(|_| ModalLayer::new());
 1469        let toast_layer = cx.new(|_| ToastLayer::new());
 1470        cx.subscribe(
 1471            &modal_layer,
 1472            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1473                cx.emit(Event::ModalOpened);
 1474            },
 1475        )
 1476        .detach();
 1477
 1478        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1479        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1480        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1481        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1482        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1483        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1484        let status_bar = cx.new(|cx| {
 1485            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1486            status_bar.add_left_item(left_dock_buttons, window, cx);
 1487            status_bar.add_right_item(right_dock_buttons, window, cx);
 1488            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1489            status_bar
 1490        });
 1491
 1492        let session_id = app_state.session.read(cx).id().to_owned();
 1493
 1494        let mut active_call = None;
 1495        if let Some(call) = ActiveCall::try_global(cx) {
 1496            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1497            active_call = Some((call, subscriptions));
 1498        }
 1499
 1500        let (serializable_items_tx, serializable_items_rx) =
 1501            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1502        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1503            Self::serialize_items(&this, serializable_items_rx, cx).await
 1504        });
 1505
 1506        let subscriptions = vec![
 1507            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1508            cx.observe_window_bounds(window, move |this, window, cx| {
 1509                if this.bounds_save_task_queued.is_some() {
 1510                    return;
 1511                }
 1512                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1513                    cx.background_executor()
 1514                        .timer(Duration::from_millis(100))
 1515                        .await;
 1516                    this.update_in(cx, |this, window, cx| {
 1517                        if let Some(display) = window.display(cx)
 1518                            && let Ok(display_uuid) = display.uuid()
 1519                        {
 1520                            let window_bounds = window.inner_window_bounds();
 1521                            let has_paths = !this.root_paths(cx).is_empty();
 1522                            if !has_paths {
 1523                                cx.background_executor()
 1524                                    .spawn(persistence::write_default_window_bounds(
 1525                                        window_bounds,
 1526                                        display_uuid,
 1527                                    ))
 1528                                    .detach_and_log_err(cx);
 1529                            }
 1530                            if let Some(database_id) = workspace_id {
 1531                                cx.background_executor()
 1532                                    .spawn(DB.set_window_open_status(
 1533                                        database_id,
 1534                                        SerializedWindowBounds(window_bounds),
 1535                                        display_uuid,
 1536                                    ))
 1537                                    .detach_and_log_err(cx);
 1538                            } else {
 1539                                cx.background_executor()
 1540                                    .spawn(persistence::write_default_window_bounds(
 1541                                        window_bounds,
 1542                                        display_uuid,
 1543                                    ))
 1544                                    .detach_and_log_err(cx);
 1545                            }
 1546                        }
 1547                        this.bounds_save_task_queued.take();
 1548                    })
 1549                    .ok();
 1550                }));
 1551                cx.notify();
 1552            }),
 1553            cx.observe_window_appearance(window, |_, window, cx| {
 1554                let window_appearance = window.appearance();
 1555
 1556                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1557
 1558                GlobalTheme::reload_theme(cx);
 1559                GlobalTheme::reload_icon_theme(cx);
 1560            }),
 1561            cx.on_release(move |this, cx| {
 1562                this.app_state.workspace_store.update(cx, move |store, _| {
 1563                    store.workspaces.remove(&window_handle);
 1564                })
 1565            }),
 1566        ];
 1567
 1568        cx.defer_in(window, move |this, window, cx| {
 1569            this.update_window_title(window, cx);
 1570            this.show_initial_notifications(cx);
 1571        });
 1572
 1573        let mut center = PaneGroup::new(center_pane.clone());
 1574        center.set_is_center(true);
 1575        center.mark_positions(cx);
 1576
 1577        Workspace {
 1578            weak_self: weak_handle.clone(),
 1579            zoomed: None,
 1580            zoomed_position: None,
 1581            previous_dock_drag_coordinates: None,
 1582            center,
 1583            panes: vec![center_pane.clone()],
 1584            panes_by_item: Default::default(),
 1585            active_pane: center_pane.clone(),
 1586            last_active_center_pane: Some(center_pane.downgrade()),
 1587            last_active_view_id: None,
 1588            status_bar,
 1589            modal_layer,
 1590            toast_layer,
 1591            titlebar_item: None,
 1592            notifications: Notifications::default(),
 1593            suppressed_notifications: HashSet::default(),
 1594            left_dock,
 1595            bottom_dock,
 1596            right_dock,
 1597            project: project.clone(),
 1598            follower_states: Default::default(),
 1599            last_leaders_by_pane: Default::default(),
 1600            dispatching_keystrokes: Default::default(),
 1601            window_edited: false,
 1602            last_window_title: None,
 1603            dirty_items: Default::default(),
 1604            active_call,
 1605            database_id: workspace_id,
 1606            app_state,
 1607            _observe_current_user,
 1608            _apply_leader_updates,
 1609            _schedule_serialize_workspace: None,
 1610            _schedule_serialize_ssh_paths: None,
 1611            _schedule_serialize_worktree_trust: Task::ready(()),
 1612            leader_updates_tx,
 1613            _subscriptions: subscriptions,
 1614            pane_history_timestamp,
 1615            workspace_actions: Default::default(),
 1616            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1617            bounds: Default::default(),
 1618            centered_layout: false,
 1619            bounds_save_task_queued: None,
 1620            on_prompt_for_new_path: None,
 1621            on_prompt_for_open_path: None,
 1622            terminal_provider: None,
 1623            debugger_provider: None,
 1624            serializable_items_tx,
 1625            _items_serializer,
 1626            session_id: Some(session_id),
 1627
 1628            scheduled_tasks: Vec::new(),
 1629            last_open_dock_positions: Vec::new(),
 1630            removing: false,
 1631            utility_panes: UtilityPaneState::default(),
 1632            next_modal_placement: None,
 1633        }
 1634    }
 1635
 1636    pub fn new_local(
 1637        abs_paths: Vec<PathBuf>,
 1638        app_state: Arc<AppState>,
 1639        requesting_window: Option<WindowHandle<Workspace>>,
 1640        env: Option<HashMap<String, String>>,
 1641        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1642        cx: &mut App,
 1643    ) -> Task<
 1644        anyhow::Result<(
 1645            WindowHandle<Workspace>,
 1646            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1647        )>,
 1648    > {
 1649        let project_handle = Project::local(
 1650            app_state.client.clone(),
 1651            app_state.node_runtime.clone(),
 1652            app_state.user_store.clone(),
 1653            app_state.languages.clone(),
 1654            app_state.fs.clone(),
 1655            env,
 1656            true,
 1657            cx,
 1658        );
 1659
 1660        cx.spawn(async move |cx| {
 1661            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1662            for path in abs_paths.into_iter() {
 1663                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1664                    paths_to_open.push(canonical)
 1665                } else {
 1666                    paths_to_open.push(path)
 1667                }
 1668            }
 1669
 1670            let serialized_workspace =
 1671                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1672
 1673            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1674                paths_to_open = paths.ordered_paths().cloned().collect();
 1675                if !paths.is_lexicographically_ordered() {
 1676                    project_handle
 1677                        .update(cx, |project, cx| {
 1678                            project.set_worktrees_reordered(true, cx);
 1679                        })
 1680                        .log_err();
 1681                }
 1682            }
 1683
 1684            // Get project paths for all of the abs_paths
 1685            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1686                Vec::with_capacity(paths_to_open.len());
 1687
 1688            for path in paths_to_open.into_iter() {
 1689                if let Some((_, project_entry)) = cx
 1690                    .update(|cx| {
 1691                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1692                    })?
 1693                    .await
 1694                    .log_err()
 1695                {
 1696                    project_paths.push((path, Some(project_entry)));
 1697                } else {
 1698                    project_paths.push((path, None));
 1699                }
 1700            }
 1701
 1702            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1703                serialized_workspace.id
 1704            } else {
 1705                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1706            };
 1707
 1708            let toolchains = DB.toolchains(workspace_id).await?;
 1709
 1710            for (toolchain, worktree_path, path) in toolchains {
 1711                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1712                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1713                    this.find_worktree(&worktree_path, cx)
 1714                        .and_then(|(worktree, rel_path)| {
 1715                            if rel_path.is_empty() {
 1716                                Some(worktree.read(cx).id())
 1717                            } else {
 1718                                None
 1719                            }
 1720                        })
 1721                })?
 1722                else {
 1723                    // We did not find a worktree with a given path, but that's whatever.
 1724                    continue;
 1725                };
 1726                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1727                    continue;
 1728                }
 1729
 1730                project_handle
 1731                    .update(cx, |this, cx| {
 1732                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1733                    })?
 1734                    .await;
 1735            }
 1736            if let Some(workspace) = serialized_workspace.as_ref() {
 1737                project_handle.update(cx, |this, cx| {
 1738                    for (scope, toolchains) in &workspace.user_toolchains {
 1739                        for toolchain in toolchains {
 1740                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1741                        }
 1742                    }
 1743                })?;
 1744            }
 1745
 1746            let window = if let Some(window) = requesting_window {
 1747                let centered_layout = serialized_workspace
 1748                    .as_ref()
 1749                    .map(|w| w.centered_layout)
 1750                    .unwrap_or(false);
 1751
 1752                cx.update_window(window.into(), |_, window, cx| {
 1753                    window.replace_root(cx, |window, cx| {
 1754                        let mut workspace = Workspace::new(
 1755                            Some(workspace_id),
 1756                            project_handle.clone(),
 1757                            app_state.clone(),
 1758                            window,
 1759                            cx,
 1760                        );
 1761
 1762                        workspace.centered_layout = centered_layout;
 1763
 1764                        // Call init callback to add items before window renders
 1765                        if let Some(init) = init {
 1766                            init(&mut workspace, window, cx);
 1767                        }
 1768
 1769                        workspace
 1770                    });
 1771                })?;
 1772                window
 1773            } else {
 1774                let window_bounds_override = window_bounds_env_override();
 1775
 1776                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1777                    (Some(WindowBounds::Windowed(bounds)), None)
 1778                } else if let Some(workspace) = serialized_workspace.as_ref()
 1779                    && let Some(display) = workspace.display
 1780                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1781                {
 1782                    // Reopening an existing workspace - restore its saved bounds
 1783                    (Some(bounds.0), Some(display))
 1784                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1785                    // New or empty workspace - use the last known window bounds
 1786                    (Some(bounds), Some(display))
 1787                } else {
 1788                    // New window - let GPUI's default_bounds() handle cascading
 1789                    (None, None)
 1790                };
 1791
 1792                // Use the serialized workspace to construct the new window
 1793                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1794                options.window_bounds = window_bounds;
 1795                let centered_layout = serialized_workspace
 1796                    .as_ref()
 1797                    .map(|w| w.centered_layout)
 1798                    .unwrap_or(false);
 1799                cx.open_window(options, {
 1800                    let app_state = app_state.clone();
 1801                    let project_handle = project_handle.clone();
 1802                    move |window, cx| {
 1803                        cx.new(|cx| {
 1804                            let mut workspace = Workspace::new(
 1805                                Some(workspace_id),
 1806                                project_handle,
 1807                                app_state,
 1808                                window,
 1809                                cx,
 1810                            );
 1811                            workspace.centered_layout = centered_layout;
 1812
 1813                            // Call init callback to add items before window renders
 1814                            if let Some(init) = init {
 1815                                init(&mut workspace, window, cx);
 1816                            }
 1817
 1818                            workspace
 1819                        })
 1820                    }
 1821                })?
 1822            };
 1823
 1824            notify_if_database_failed(window, cx);
 1825            let opened_items = window
 1826                .update(cx, |_workspace, window, cx| {
 1827                    open_items(serialized_workspace, project_paths, window, cx)
 1828                })?
 1829                .await
 1830                .unwrap_or_default();
 1831
 1832            window
 1833                .update(cx, |workspace, window, cx| {
 1834                    window.activate_window();
 1835                    workspace.update_history(cx);
 1836                })
 1837                .log_err();
 1838            Ok((window, opened_items))
 1839        })
 1840    }
 1841
 1842    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1843        self.weak_self.clone()
 1844    }
 1845
 1846    pub fn left_dock(&self) -> &Entity<Dock> {
 1847        &self.left_dock
 1848    }
 1849
 1850    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1851        &self.bottom_dock
 1852    }
 1853
 1854    pub fn set_bottom_dock_layout(
 1855        &mut self,
 1856        layout: BottomDockLayout,
 1857        window: &mut Window,
 1858        cx: &mut Context<Self>,
 1859    ) {
 1860        let fs = self.project().read(cx).fs();
 1861        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1862            content.workspace.bottom_dock_layout = Some(layout);
 1863        });
 1864
 1865        cx.notify();
 1866        self.serialize_workspace(window, cx);
 1867    }
 1868
 1869    pub fn right_dock(&self) -> &Entity<Dock> {
 1870        &self.right_dock
 1871    }
 1872
 1873    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1874        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1875    }
 1876
 1877    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1878        match position {
 1879            DockPosition::Left => &self.left_dock,
 1880            DockPosition::Bottom => &self.bottom_dock,
 1881            DockPosition::Right => &self.right_dock,
 1882        }
 1883    }
 1884
 1885    pub fn is_edited(&self) -> bool {
 1886        self.window_edited
 1887    }
 1888
 1889    pub fn add_panel<T: Panel>(
 1890        &mut self,
 1891        panel: Entity<T>,
 1892        window: &mut Window,
 1893        cx: &mut Context<Self>,
 1894    ) {
 1895        let focus_handle = panel.panel_focus_handle(cx);
 1896        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1897            .detach();
 1898
 1899        let dock_position = panel.position(window, cx);
 1900        let dock = self.dock_at_position(dock_position);
 1901
 1902        dock.update(cx, |dock, cx| {
 1903            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1904        });
 1905    }
 1906
 1907    pub fn remove_panel<T: Panel>(
 1908        &mut self,
 1909        panel: &Entity<T>,
 1910        window: &mut Window,
 1911        cx: &mut Context<Self>,
 1912    ) {
 1913        let mut found_in_dock = None;
 1914        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1915            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1916
 1917            if found {
 1918                found_in_dock = Some(dock.clone());
 1919            }
 1920        }
 1921        if let Some(found_in_dock) = found_in_dock {
 1922            let position = found_in_dock.read(cx).position();
 1923            let slot = utility_slot_for_dock_position(position);
 1924            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1925        }
 1926    }
 1927
 1928    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1929        &self.status_bar
 1930    }
 1931
 1932    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1933        StatusBarSettings::get_global(cx).show
 1934    }
 1935
 1936    pub fn app_state(&self) -> &Arc<AppState> {
 1937        &self.app_state
 1938    }
 1939
 1940    pub fn user_store(&self) -> &Entity<UserStore> {
 1941        &self.app_state.user_store
 1942    }
 1943
 1944    pub fn project(&self) -> &Entity<Project> {
 1945        &self.project
 1946    }
 1947
 1948    pub fn path_style(&self, cx: &App) -> PathStyle {
 1949        self.project.read(cx).path_style(cx)
 1950    }
 1951
 1952    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1953        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1954
 1955        for pane_handle in &self.panes {
 1956            let pane = pane_handle.read(cx);
 1957
 1958            for entry in pane.activation_history() {
 1959                history.insert(
 1960                    entry.entity_id,
 1961                    history
 1962                        .get(&entry.entity_id)
 1963                        .cloned()
 1964                        .unwrap_or(0)
 1965                        .max(entry.timestamp),
 1966                );
 1967            }
 1968        }
 1969
 1970        history
 1971    }
 1972
 1973    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1974        let mut recent_item: Option<Entity<T>> = None;
 1975        let mut recent_timestamp = 0;
 1976        for pane_handle in &self.panes {
 1977            let pane = pane_handle.read(cx);
 1978            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1979                pane.items().map(|item| (item.item_id(), item)).collect();
 1980            for entry in pane.activation_history() {
 1981                if entry.timestamp > recent_timestamp
 1982                    && let Some(&item) = item_map.get(&entry.entity_id)
 1983                    && let Some(typed_item) = item.act_as::<T>(cx)
 1984                {
 1985                    recent_timestamp = entry.timestamp;
 1986                    recent_item = Some(typed_item);
 1987                }
 1988            }
 1989        }
 1990        recent_item
 1991    }
 1992
 1993    pub fn recent_navigation_history_iter(
 1994        &self,
 1995        cx: &App,
 1996    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1997        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1998        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1999
 2000        for pane in &self.panes {
 2001            let pane = pane.read(cx);
 2002
 2003            pane.nav_history()
 2004                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2005                    if let Some(fs_path) = &fs_path {
 2006                        abs_paths_opened
 2007                            .entry(fs_path.clone())
 2008                            .or_default()
 2009                            .insert(project_path.clone());
 2010                    }
 2011                    let timestamp = entry.timestamp;
 2012                    match history.entry(project_path) {
 2013                        hash_map::Entry::Occupied(mut entry) => {
 2014                            let (_, old_timestamp) = entry.get();
 2015                            if &timestamp > old_timestamp {
 2016                                entry.insert((fs_path, timestamp));
 2017                            }
 2018                        }
 2019                        hash_map::Entry::Vacant(entry) => {
 2020                            entry.insert((fs_path, timestamp));
 2021                        }
 2022                    }
 2023                });
 2024
 2025            if let Some(item) = pane.active_item()
 2026                && let Some(project_path) = item.project_path(cx)
 2027            {
 2028                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2029
 2030                if let Some(fs_path) = &fs_path {
 2031                    abs_paths_opened
 2032                        .entry(fs_path.clone())
 2033                        .or_default()
 2034                        .insert(project_path.clone());
 2035                }
 2036
 2037                history.insert(project_path, (fs_path, std::usize::MAX));
 2038            }
 2039        }
 2040
 2041        history
 2042            .into_iter()
 2043            .sorted_by_key(|(_, (_, order))| *order)
 2044            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2045            .rev()
 2046            .filter(move |(history_path, abs_path)| {
 2047                let latest_project_path_opened = abs_path
 2048                    .as_ref()
 2049                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2050                    .and_then(|project_paths| {
 2051                        project_paths
 2052                            .iter()
 2053                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2054                    });
 2055
 2056                latest_project_path_opened.is_none_or(|path| path == history_path)
 2057            })
 2058    }
 2059
 2060    pub fn recent_navigation_history(
 2061        &self,
 2062        limit: Option<usize>,
 2063        cx: &App,
 2064    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2065        self.recent_navigation_history_iter(cx)
 2066            .take(limit.unwrap_or(usize::MAX))
 2067            .collect()
 2068    }
 2069
 2070    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2071        for pane in &self.panes {
 2072            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2073        }
 2074    }
 2075
 2076    fn navigate_history(
 2077        &mut self,
 2078        pane: WeakEntity<Pane>,
 2079        mode: NavigationMode,
 2080        window: &mut Window,
 2081        cx: &mut Context<Workspace>,
 2082    ) -> Task<Result<()>> {
 2083        let to_load = if let Some(pane) = pane.upgrade() {
 2084            pane.update(cx, |pane, cx| {
 2085                window.focus(&pane.focus_handle(cx), cx);
 2086                loop {
 2087                    // Retrieve the weak item handle from the history.
 2088                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2089
 2090                    // If the item is still present in this pane, then activate it.
 2091                    if let Some(index) = entry
 2092                        .item
 2093                        .upgrade()
 2094                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2095                    {
 2096                        let prev_active_item_index = pane.active_item_index();
 2097                        pane.nav_history_mut().set_mode(mode);
 2098                        pane.activate_item(index, true, true, window, cx);
 2099                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2100
 2101                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2102                        if let Some(data) = entry.data {
 2103                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2104                        }
 2105
 2106                        if navigated {
 2107                            break None;
 2108                        }
 2109                    } else {
 2110                        // If the item is no longer present in this pane, then retrieve its
 2111                        // path info in order to reopen it.
 2112                        break pane
 2113                            .nav_history()
 2114                            .path_for_item(entry.item.id())
 2115                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2116                    }
 2117                }
 2118            })
 2119        } else {
 2120            None
 2121        };
 2122
 2123        if let Some((project_path, abs_path, entry)) = to_load {
 2124            // If the item was no longer present, then load it again from its previous path, first try the local path
 2125            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2126
 2127            cx.spawn_in(window, async move  |workspace, cx| {
 2128                let open_by_project_path = open_by_project_path.await;
 2129                let mut navigated = false;
 2130                match open_by_project_path
 2131                    .with_context(|| format!("Navigating to {project_path:?}"))
 2132                {
 2133                    Ok((project_entry_id, build_item)) => {
 2134                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2135                            pane.nav_history_mut().set_mode(mode);
 2136                            pane.active_item().map(|p| p.item_id())
 2137                        })?;
 2138
 2139                        pane.update_in(cx, |pane, window, cx| {
 2140                            let item = pane.open_item(
 2141                                project_entry_id,
 2142                                project_path,
 2143                                true,
 2144                                entry.is_preview,
 2145                                true,
 2146                                None,
 2147                                window, cx,
 2148                                build_item,
 2149                            );
 2150                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2151                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2152                            if let Some(data) = entry.data {
 2153                                navigated |= item.navigate(data, window, cx);
 2154                            }
 2155                        })?;
 2156                    }
 2157                    Err(open_by_project_path_e) => {
 2158                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2159                        // and its worktree is now dropped
 2160                        if let Some(abs_path) = abs_path {
 2161                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2162                                pane.nav_history_mut().set_mode(mode);
 2163                                pane.active_item().map(|p| p.item_id())
 2164                            })?;
 2165                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2166                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2167                            })?;
 2168                            match open_by_abs_path
 2169                                .await
 2170                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2171                            {
 2172                                Ok(item) => {
 2173                                    pane.update_in(cx, |pane, window, cx| {
 2174                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2175                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2176                                        if let Some(data) = entry.data {
 2177                                            navigated |= item.navigate(data, window, cx);
 2178                                        }
 2179                                    })?;
 2180                                }
 2181                                Err(open_by_abs_path_e) => {
 2182                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2183                                }
 2184                            }
 2185                        }
 2186                    }
 2187                }
 2188
 2189                if !navigated {
 2190                    workspace
 2191                        .update_in(cx, |workspace, window, cx| {
 2192                            Self::navigate_history(workspace, pane, mode, window, cx)
 2193                        })?
 2194                        .await?;
 2195                }
 2196
 2197                Ok(())
 2198            })
 2199        } else {
 2200            Task::ready(Ok(()))
 2201        }
 2202    }
 2203
 2204    pub fn go_back(
 2205        &mut self,
 2206        pane: WeakEntity<Pane>,
 2207        window: &mut Window,
 2208        cx: &mut Context<Workspace>,
 2209    ) -> Task<Result<()>> {
 2210        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2211    }
 2212
 2213    pub fn go_forward(
 2214        &mut self,
 2215        pane: WeakEntity<Pane>,
 2216        window: &mut Window,
 2217        cx: &mut Context<Workspace>,
 2218    ) -> Task<Result<()>> {
 2219        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2220    }
 2221
 2222    pub fn reopen_closed_item(
 2223        &mut self,
 2224        window: &mut Window,
 2225        cx: &mut Context<Workspace>,
 2226    ) -> Task<Result<()>> {
 2227        self.navigate_history(
 2228            self.active_pane().downgrade(),
 2229            NavigationMode::ReopeningClosedItem,
 2230            window,
 2231            cx,
 2232        )
 2233    }
 2234
 2235    pub fn client(&self) -> &Arc<Client> {
 2236        &self.app_state.client
 2237    }
 2238
 2239    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2240        self.titlebar_item = Some(item);
 2241        cx.notify();
 2242    }
 2243
 2244    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2245        self.on_prompt_for_new_path = Some(prompt)
 2246    }
 2247
 2248    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2249        self.on_prompt_for_open_path = Some(prompt)
 2250    }
 2251
 2252    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2253        self.terminal_provider = Some(Box::new(provider));
 2254    }
 2255
 2256    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2257        self.debugger_provider = Some(Arc::new(provider));
 2258    }
 2259
 2260    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2261        self.debugger_provider.clone()
 2262    }
 2263
 2264    pub fn prompt_for_open_path(
 2265        &mut self,
 2266        path_prompt_options: PathPromptOptions,
 2267        lister: DirectoryLister,
 2268        window: &mut Window,
 2269        cx: &mut Context<Self>,
 2270    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2271        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2272            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2273            let rx = prompt(self, lister, window, cx);
 2274            self.on_prompt_for_open_path = Some(prompt);
 2275            rx
 2276        } else {
 2277            let (tx, rx) = oneshot::channel();
 2278            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2279
 2280            cx.spawn_in(window, async move |workspace, cx| {
 2281                let Ok(result) = abs_path.await else {
 2282                    return Ok(());
 2283                };
 2284
 2285                match result {
 2286                    Ok(result) => {
 2287                        tx.send(result).ok();
 2288                    }
 2289                    Err(err) => {
 2290                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2291                            workspace.show_portal_error(err.to_string(), cx);
 2292                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2293                            let rx = prompt(workspace, lister, window, cx);
 2294                            workspace.on_prompt_for_open_path = Some(prompt);
 2295                            rx
 2296                        })?;
 2297                        if let Ok(path) = rx.await {
 2298                            tx.send(path).ok();
 2299                        }
 2300                    }
 2301                };
 2302                anyhow::Ok(())
 2303            })
 2304            .detach();
 2305
 2306            rx
 2307        }
 2308    }
 2309
 2310    pub fn prompt_for_new_path(
 2311        &mut self,
 2312        lister: DirectoryLister,
 2313        suggested_name: Option<String>,
 2314        window: &mut Window,
 2315        cx: &mut Context<Self>,
 2316    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2317        if self.project.read(cx).is_via_collab()
 2318            || self.project.read(cx).is_via_remote_server()
 2319            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2320        {
 2321            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2322            let rx = prompt(self, lister, window, cx);
 2323            self.on_prompt_for_new_path = Some(prompt);
 2324            return rx;
 2325        }
 2326
 2327        let (tx, rx) = oneshot::channel();
 2328        cx.spawn_in(window, async move |workspace, cx| {
 2329            let abs_path = workspace.update(cx, |workspace, cx| {
 2330                let relative_to = workspace
 2331                    .most_recent_active_path(cx)
 2332                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2333                    .or_else(|| {
 2334                        let project = workspace.project.read(cx);
 2335                        project.visible_worktrees(cx).find_map(|worktree| {
 2336                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2337                        })
 2338                    })
 2339                    .or_else(std::env::home_dir)
 2340                    .unwrap_or_else(|| PathBuf::from(""));
 2341                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2342            })?;
 2343            let abs_path = match abs_path.await? {
 2344                Ok(path) => path,
 2345                Err(err) => {
 2346                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2347                        workspace.show_portal_error(err.to_string(), cx);
 2348
 2349                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2350                        let rx = prompt(workspace, lister, window, cx);
 2351                        workspace.on_prompt_for_new_path = Some(prompt);
 2352                        rx
 2353                    })?;
 2354                    if let Ok(path) = rx.await {
 2355                        tx.send(path).ok();
 2356                    }
 2357                    return anyhow::Ok(());
 2358                }
 2359            };
 2360
 2361            tx.send(abs_path.map(|path| vec![path])).ok();
 2362            anyhow::Ok(())
 2363        })
 2364        .detach();
 2365
 2366        rx
 2367    }
 2368
 2369    pub fn titlebar_item(&self) -> Option<AnyView> {
 2370        self.titlebar_item.clone()
 2371    }
 2372
 2373    /// Call the given callback with a workspace whose project is local.
 2374    ///
 2375    /// If the given workspace has a local project, then it will be passed
 2376    /// to the callback. Otherwise, a new empty window will be created.
 2377    pub fn with_local_workspace<T, F>(
 2378        &mut self,
 2379        window: &mut Window,
 2380        cx: &mut Context<Self>,
 2381        callback: F,
 2382    ) -> Task<Result<T>>
 2383    where
 2384        T: 'static,
 2385        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2386    {
 2387        if self.project.read(cx).is_local() {
 2388            Task::ready(Ok(callback(self, window, cx)))
 2389        } else {
 2390            let env = self.project.read(cx).cli_environment(cx);
 2391            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2392            cx.spawn_in(window, async move |_vh, cx| {
 2393                let (workspace, _) = task.await?;
 2394                workspace.update(cx, callback)
 2395            })
 2396        }
 2397    }
 2398
 2399    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2400        self.project.read(cx).worktrees(cx)
 2401    }
 2402
 2403    pub fn visible_worktrees<'a>(
 2404        &self,
 2405        cx: &'a App,
 2406    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2407        self.project.read(cx).visible_worktrees(cx)
 2408    }
 2409
 2410    #[cfg(any(test, feature = "test-support"))]
 2411    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2412        let futures = self
 2413            .worktrees(cx)
 2414            .filter_map(|worktree| worktree.read(cx).as_local())
 2415            .map(|worktree| worktree.scan_complete())
 2416            .collect::<Vec<_>>();
 2417        async move {
 2418            for future in futures {
 2419                future.await;
 2420            }
 2421        }
 2422    }
 2423
 2424    pub fn close_global(cx: &mut App) {
 2425        cx.defer(|cx| {
 2426            cx.windows().iter().find(|window| {
 2427                window
 2428                    .update(cx, |_, window, _| {
 2429                        if window.is_window_active() {
 2430                            //This can only get called when the window's project connection has been lost
 2431                            //so we don't need to prompt the user for anything and instead just close the window
 2432                            window.remove_window();
 2433                            true
 2434                        } else {
 2435                            false
 2436                        }
 2437                    })
 2438                    .unwrap_or(false)
 2439            });
 2440        });
 2441    }
 2442
 2443    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2444        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2445        cx.spawn_in(window, async move |_, cx| {
 2446            if prepare.await? {
 2447                cx.update(|window, _cx| window.remove_window())?;
 2448            }
 2449            anyhow::Ok(())
 2450        })
 2451        .detach_and_log_err(cx)
 2452    }
 2453
 2454    pub fn move_focused_panel_to_next_position(
 2455        &mut self,
 2456        _: &MoveFocusedPanelToNextPosition,
 2457        window: &mut Window,
 2458        cx: &mut Context<Self>,
 2459    ) {
 2460        let docks = self.all_docks();
 2461        let active_dock = docks
 2462            .into_iter()
 2463            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2464
 2465        if let Some(dock) = active_dock {
 2466            dock.update(cx, |dock, cx| {
 2467                let active_panel = dock
 2468                    .active_panel()
 2469                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2470
 2471                if let Some(panel) = active_panel {
 2472                    panel.move_to_next_position(window, cx);
 2473                }
 2474            })
 2475        }
 2476    }
 2477
 2478    pub fn prepare_to_close(
 2479        &mut self,
 2480        close_intent: CloseIntent,
 2481        window: &mut Window,
 2482        cx: &mut Context<Self>,
 2483    ) -> Task<Result<bool>> {
 2484        let active_call = self.active_call().cloned();
 2485
 2486        cx.spawn_in(window, async move |this, cx| {
 2487            this.update(cx, |this, _| {
 2488                if close_intent == CloseIntent::CloseWindow {
 2489                    this.removing = true;
 2490                }
 2491            })?;
 2492
 2493            let workspace_count = cx.update(|_window, cx| {
 2494                cx.windows()
 2495                    .iter()
 2496                    .filter(|window| window.downcast::<Workspace>().is_some())
 2497                    .count()
 2498            })?;
 2499
 2500            #[cfg(target_os = "macos")]
 2501            let save_last_workspace = false;
 2502
 2503            // On Linux and Windows, closing the last window should restore the last workspace.
 2504            #[cfg(not(target_os = "macos"))]
 2505            let save_last_workspace = {
 2506                let remaining_workspaces = cx.update(|_window, cx| {
 2507                    cx.windows()
 2508                        .iter()
 2509                        .filter_map(|window| window.downcast::<Workspace>())
 2510                        .filter_map(|workspace| {
 2511                            workspace
 2512                                .update(cx, |workspace, _, _| workspace.removing)
 2513                                .ok()
 2514                        })
 2515                        .filter(|removing| !removing)
 2516                        .count()
 2517                })?;
 2518
 2519                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2520            };
 2521
 2522            if let Some(active_call) = active_call
 2523                && workspace_count == 1
 2524                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2525            {
 2526                if close_intent == CloseIntent::CloseWindow {
 2527                    let answer = cx.update(|window, cx| {
 2528                        window.prompt(
 2529                            PromptLevel::Warning,
 2530                            "Do you want to leave the current call?",
 2531                            None,
 2532                            &["Close window and hang up", "Cancel"],
 2533                            cx,
 2534                        )
 2535                    })?;
 2536
 2537                    if answer.await.log_err() == Some(1) {
 2538                        return anyhow::Ok(false);
 2539                    } else {
 2540                        active_call
 2541                            .update(cx, |call, cx| call.hang_up(cx))?
 2542                            .await
 2543                            .log_err();
 2544                    }
 2545                }
 2546                if close_intent == CloseIntent::ReplaceWindow {
 2547                    _ = active_call.update(cx, |this, cx| {
 2548                        let workspace = cx
 2549                            .windows()
 2550                            .iter()
 2551                            .filter_map(|window| window.downcast::<Workspace>())
 2552                            .next()
 2553                            .unwrap();
 2554                        let project = workspace.read(cx)?.project.clone();
 2555                        if project.read(cx).is_shared() {
 2556                            this.unshare_project(project, cx)?;
 2557                        }
 2558                        Ok::<_, anyhow::Error>(())
 2559                    })?;
 2560                }
 2561            }
 2562
 2563            let save_result = this
 2564                .update_in(cx, |this, window, cx| {
 2565                    this.save_all_internal(SaveIntent::Close, window, cx)
 2566                })?
 2567                .await;
 2568
 2569            // If we're not quitting, but closing, we remove the workspace from
 2570            // the current session.
 2571            if close_intent != CloseIntent::Quit
 2572                && !save_last_workspace
 2573                && save_result.as_ref().is_ok_and(|&res| res)
 2574            {
 2575                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2576                    .await;
 2577            }
 2578
 2579            save_result
 2580        })
 2581    }
 2582
 2583    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2584        self.save_all_internal(
 2585            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2586            window,
 2587            cx,
 2588        )
 2589        .detach_and_log_err(cx);
 2590    }
 2591
 2592    fn send_keystrokes(
 2593        &mut self,
 2594        action: &SendKeystrokes,
 2595        window: &mut Window,
 2596        cx: &mut Context<Self>,
 2597    ) {
 2598        let keystrokes: Vec<Keystroke> = action
 2599            .0
 2600            .split(' ')
 2601            .flat_map(|k| Keystroke::parse(k).log_err())
 2602            .map(|k| {
 2603                cx.keyboard_mapper()
 2604                    .map_key_equivalent(k, true)
 2605                    .inner()
 2606                    .clone()
 2607            })
 2608            .collect();
 2609        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2610    }
 2611
 2612    pub fn send_keystrokes_impl(
 2613        &mut self,
 2614        keystrokes: Vec<Keystroke>,
 2615        window: &mut Window,
 2616        cx: &mut Context<Self>,
 2617    ) -> Shared<Task<()>> {
 2618        let mut state = self.dispatching_keystrokes.borrow_mut();
 2619        if !state.dispatched.insert(keystrokes.clone()) {
 2620            cx.propagate();
 2621            return state.task.clone().unwrap();
 2622        }
 2623
 2624        state.queue.extend(keystrokes);
 2625
 2626        let keystrokes = self.dispatching_keystrokes.clone();
 2627        if state.task.is_none() {
 2628            state.task = Some(
 2629                window
 2630                    .spawn(cx, async move |cx| {
 2631                        // limit to 100 keystrokes to avoid infinite recursion.
 2632                        for _ in 0..100 {
 2633                            let mut state = keystrokes.borrow_mut();
 2634                            let Some(keystroke) = state.queue.pop_front() else {
 2635                                state.dispatched.clear();
 2636                                state.task.take();
 2637                                return;
 2638                            };
 2639                            drop(state);
 2640                            cx.update(|window, cx| {
 2641                                let focused = window.focused(cx);
 2642                                window.dispatch_keystroke(keystroke.clone(), cx);
 2643                                if window.focused(cx) != focused {
 2644                                    // dispatch_keystroke may cause the focus to change.
 2645                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2646                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2647                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2648                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2649                                    // )
 2650                                    window.draw(cx).clear();
 2651                                }
 2652                            })
 2653                            .ok();
 2654                        }
 2655
 2656                        *keystrokes.borrow_mut() = Default::default();
 2657                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2658                    })
 2659                    .shared(),
 2660            );
 2661        }
 2662        state.task.clone().unwrap()
 2663    }
 2664
 2665    fn save_all_internal(
 2666        &mut self,
 2667        mut save_intent: SaveIntent,
 2668        window: &mut Window,
 2669        cx: &mut Context<Self>,
 2670    ) -> Task<Result<bool>> {
 2671        if self.project.read(cx).is_disconnected(cx) {
 2672            return Task::ready(Ok(true));
 2673        }
 2674        let dirty_items = self
 2675            .panes
 2676            .iter()
 2677            .flat_map(|pane| {
 2678                pane.read(cx).items().filter_map(|item| {
 2679                    if item.is_dirty(cx) {
 2680                        item.tab_content_text(0, cx);
 2681                        Some((pane.downgrade(), item.boxed_clone()))
 2682                    } else {
 2683                        None
 2684                    }
 2685                })
 2686            })
 2687            .collect::<Vec<_>>();
 2688
 2689        let project = self.project.clone();
 2690        cx.spawn_in(window, async move |workspace, cx| {
 2691            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2692                let (serialize_tasks, remaining_dirty_items) =
 2693                    workspace.update_in(cx, |workspace, window, cx| {
 2694                        let mut remaining_dirty_items = Vec::new();
 2695                        let mut serialize_tasks = Vec::new();
 2696                        for (pane, item) in dirty_items {
 2697                            if let Some(task) = item
 2698                                .to_serializable_item_handle(cx)
 2699                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2700                            {
 2701                                serialize_tasks.push(task);
 2702                            } else {
 2703                                remaining_dirty_items.push((pane, item));
 2704                            }
 2705                        }
 2706                        (serialize_tasks, remaining_dirty_items)
 2707                    })?;
 2708
 2709                futures::future::try_join_all(serialize_tasks).await?;
 2710
 2711                if remaining_dirty_items.len() > 1 {
 2712                    let answer = workspace.update_in(cx, |_, window, cx| {
 2713                        let detail = Pane::file_names_for_prompt(
 2714                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2715                            cx,
 2716                        );
 2717                        window.prompt(
 2718                            PromptLevel::Warning,
 2719                            "Do you want to save all changes in the following files?",
 2720                            Some(&detail),
 2721                            &["Save all", "Discard all", "Cancel"],
 2722                            cx,
 2723                        )
 2724                    })?;
 2725                    match answer.await.log_err() {
 2726                        Some(0) => save_intent = SaveIntent::SaveAll,
 2727                        Some(1) => save_intent = SaveIntent::Skip,
 2728                        Some(2) => return Ok(false),
 2729                        _ => {}
 2730                    }
 2731                }
 2732
 2733                remaining_dirty_items
 2734            } else {
 2735                dirty_items
 2736            };
 2737
 2738            for (pane, item) in dirty_items {
 2739                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2740                    (
 2741                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2742                        item.project_entry_ids(cx),
 2743                    )
 2744                })?;
 2745                if (singleton || !project_entry_ids.is_empty())
 2746                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2747                {
 2748                    return Ok(false);
 2749                }
 2750            }
 2751            Ok(true)
 2752        })
 2753    }
 2754
 2755    pub fn open_workspace_for_paths(
 2756        &mut self,
 2757        replace_current_window: bool,
 2758        paths: Vec<PathBuf>,
 2759        window: &mut Window,
 2760        cx: &mut Context<Self>,
 2761    ) -> Task<Result<()>> {
 2762        let window_handle = window.window_handle().downcast::<Self>();
 2763        let is_remote = self.project.read(cx).is_via_collab();
 2764        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2765        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2766
 2767        let window_to_replace = if replace_current_window {
 2768            window_handle
 2769        } else if is_remote || has_worktree || has_dirty_items {
 2770            None
 2771        } else {
 2772            window_handle
 2773        };
 2774        let app_state = self.app_state.clone();
 2775
 2776        cx.spawn(async move |_, cx| {
 2777            cx.update(|cx| {
 2778                open_paths(
 2779                    &paths,
 2780                    app_state,
 2781                    OpenOptions {
 2782                        replace_window: window_to_replace,
 2783                        ..Default::default()
 2784                    },
 2785                    cx,
 2786                )
 2787            })?
 2788            .await?;
 2789            Ok(())
 2790        })
 2791    }
 2792
 2793    #[allow(clippy::type_complexity)]
 2794    pub fn open_paths(
 2795        &mut self,
 2796        mut abs_paths: Vec<PathBuf>,
 2797        options: OpenOptions,
 2798        pane: Option<WeakEntity<Pane>>,
 2799        window: &mut Window,
 2800        cx: &mut Context<Self>,
 2801    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2802        let fs = self.app_state.fs.clone();
 2803
 2804        // Sort the paths to ensure we add worktrees for parents before their children.
 2805        abs_paths.sort_unstable();
 2806        cx.spawn_in(window, async move |this, cx| {
 2807            let mut tasks = Vec::with_capacity(abs_paths.len());
 2808
 2809            for abs_path in &abs_paths {
 2810                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2811                    OpenVisible::All => Some(true),
 2812                    OpenVisible::None => Some(false),
 2813                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2814                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2815                        Some(None) => Some(true),
 2816                        None => None,
 2817                    },
 2818                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2819                        Some(Some(metadata)) => Some(metadata.is_dir),
 2820                        Some(None) => Some(false),
 2821                        None => None,
 2822                    },
 2823                };
 2824                let project_path = match visible {
 2825                    Some(visible) => match this
 2826                        .update(cx, |this, cx| {
 2827                            Workspace::project_path_for_path(
 2828                                this.project.clone(),
 2829                                abs_path,
 2830                                visible,
 2831                                cx,
 2832                            )
 2833                        })
 2834                        .log_err()
 2835                    {
 2836                        Some(project_path) => project_path.await.log_err(),
 2837                        None => None,
 2838                    },
 2839                    None => None,
 2840                };
 2841
 2842                let this = this.clone();
 2843                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2844                let fs = fs.clone();
 2845                let pane = pane.clone();
 2846                let task = cx.spawn(async move |cx| {
 2847                    let (worktree, project_path) = project_path?;
 2848                    if fs.is_dir(&abs_path).await {
 2849                        this.update(cx, |workspace, cx| {
 2850                            let worktree = worktree.read(cx);
 2851                            let worktree_abs_path = worktree.abs_path();
 2852                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2853                                worktree.root_entry()
 2854                            } else {
 2855                                abs_path
 2856                                    .strip_prefix(worktree_abs_path.as_ref())
 2857                                    .ok()
 2858                                    .and_then(|relative_path| {
 2859                                        let relative_path =
 2860                                            RelPath::new(relative_path, PathStyle::local())
 2861                                                .log_err()?;
 2862                                        worktree.entry_for_path(&relative_path)
 2863                                    })
 2864                            }
 2865                            .map(|entry| entry.id);
 2866                            if let Some(entry_id) = entry_id {
 2867                                workspace.project.update(cx, |_, cx| {
 2868                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2869                                })
 2870                            }
 2871                        })
 2872                        .ok()?;
 2873                        None
 2874                    } else {
 2875                        Some(
 2876                            this.update_in(cx, |this, window, cx| {
 2877                                this.open_path(
 2878                                    project_path,
 2879                                    pane,
 2880                                    options.focus.unwrap_or(true),
 2881                                    window,
 2882                                    cx,
 2883                                )
 2884                            })
 2885                            .ok()?
 2886                            .await,
 2887                        )
 2888                    }
 2889                });
 2890                tasks.push(task);
 2891            }
 2892
 2893            futures::future::join_all(tasks).await
 2894        })
 2895    }
 2896
 2897    pub fn open_resolved_path(
 2898        &mut self,
 2899        path: ResolvedPath,
 2900        window: &mut Window,
 2901        cx: &mut Context<Self>,
 2902    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2903        match path {
 2904            ResolvedPath::ProjectPath { project_path, .. } => {
 2905                self.open_path(project_path, None, true, window, cx)
 2906            }
 2907            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2908                PathBuf::from(path),
 2909                OpenOptions {
 2910                    visible: Some(OpenVisible::None),
 2911                    ..Default::default()
 2912                },
 2913                window,
 2914                cx,
 2915            ),
 2916        }
 2917    }
 2918
 2919    pub fn absolute_path_of_worktree(
 2920        &self,
 2921        worktree_id: WorktreeId,
 2922        cx: &mut Context<Self>,
 2923    ) -> Option<PathBuf> {
 2924        self.project
 2925            .read(cx)
 2926            .worktree_for_id(worktree_id, cx)
 2927            // TODO: use `abs_path` or `root_dir`
 2928            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2929    }
 2930
 2931    fn add_folder_to_project(
 2932        &mut self,
 2933        _: &AddFolderToProject,
 2934        window: &mut Window,
 2935        cx: &mut Context<Self>,
 2936    ) {
 2937        let project = self.project.read(cx);
 2938        if project.is_via_collab() {
 2939            self.show_error(
 2940                &anyhow!("You cannot add folders to someone else's project"),
 2941                cx,
 2942            );
 2943            return;
 2944        }
 2945        let paths = self.prompt_for_open_path(
 2946            PathPromptOptions {
 2947                files: false,
 2948                directories: true,
 2949                multiple: true,
 2950                prompt: None,
 2951            },
 2952            DirectoryLister::Project(self.project.clone()),
 2953            window,
 2954            cx,
 2955        );
 2956        cx.spawn_in(window, async move |this, cx| {
 2957            if let Some(paths) = paths.await.log_err().flatten() {
 2958                let results = this
 2959                    .update_in(cx, |this, window, cx| {
 2960                        this.open_paths(
 2961                            paths,
 2962                            OpenOptions {
 2963                                visible: Some(OpenVisible::All),
 2964                                ..Default::default()
 2965                            },
 2966                            None,
 2967                            window,
 2968                            cx,
 2969                        )
 2970                    })?
 2971                    .await;
 2972                for result in results.into_iter().flatten() {
 2973                    result.log_err();
 2974                }
 2975            }
 2976            anyhow::Ok(())
 2977        })
 2978        .detach_and_log_err(cx);
 2979    }
 2980
 2981    pub fn project_path_for_path(
 2982        project: Entity<Project>,
 2983        abs_path: &Path,
 2984        visible: bool,
 2985        cx: &mut App,
 2986    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2987        let entry = project.update(cx, |project, cx| {
 2988            project.find_or_create_worktree(abs_path, visible, cx)
 2989        });
 2990        cx.spawn(async move |cx| {
 2991            let (worktree, path) = entry.await?;
 2992            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2993            Ok((
 2994                worktree,
 2995                ProjectPath {
 2996                    worktree_id,
 2997                    path: path,
 2998                },
 2999            ))
 3000        })
 3001    }
 3002
 3003    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3004        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3005    }
 3006
 3007    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3008        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3009    }
 3010
 3011    pub fn items_of_type<'a, T: Item>(
 3012        &'a self,
 3013        cx: &'a App,
 3014    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3015        self.panes
 3016            .iter()
 3017            .flat_map(|pane| pane.read(cx).items_of_type())
 3018    }
 3019
 3020    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3021        self.active_pane().read(cx).active_item()
 3022    }
 3023
 3024    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3025        let item = self.active_item(cx)?;
 3026        item.to_any_view().downcast::<I>().ok()
 3027    }
 3028
 3029    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3030        self.active_item(cx).and_then(|item| item.project_path(cx))
 3031    }
 3032
 3033    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3034        self.recent_navigation_history_iter(cx)
 3035            .filter_map(|(path, abs_path)| {
 3036                let worktree = self
 3037                    .project
 3038                    .read(cx)
 3039                    .worktree_for_id(path.worktree_id, cx)?;
 3040                if worktree.read(cx).is_visible() {
 3041                    abs_path
 3042                } else {
 3043                    None
 3044                }
 3045            })
 3046            .next()
 3047    }
 3048
 3049    pub fn save_active_item(
 3050        &mut self,
 3051        save_intent: SaveIntent,
 3052        window: &mut Window,
 3053        cx: &mut App,
 3054    ) -> Task<Result<()>> {
 3055        let project = self.project.clone();
 3056        let pane = self.active_pane();
 3057        let item = pane.read(cx).active_item();
 3058        let pane = pane.downgrade();
 3059
 3060        window.spawn(cx, async move |cx| {
 3061            if let Some(item) = item {
 3062                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3063                    .await
 3064                    .map(|_| ())
 3065            } else {
 3066                Ok(())
 3067            }
 3068        })
 3069    }
 3070
 3071    pub fn close_inactive_items_and_panes(
 3072        &mut self,
 3073        action: &CloseInactiveTabsAndPanes,
 3074        window: &mut Window,
 3075        cx: &mut Context<Self>,
 3076    ) {
 3077        if let Some(task) = self.close_all_internal(
 3078            true,
 3079            action.save_intent.unwrap_or(SaveIntent::Close),
 3080            window,
 3081            cx,
 3082        ) {
 3083            task.detach_and_log_err(cx)
 3084        }
 3085    }
 3086
 3087    pub fn close_all_items_and_panes(
 3088        &mut self,
 3089        action: &CloseAllItemsAndPanes,
 3090        window: &mut Window,
 3091        cx: &mut Context<Self>,
 3092    ) {
 3093        if let Some(task) = self.close_all_internal(
 3094            false,
 3095            action.save_intent.unwrap_or(SaveIntent::Close),
 3096            window,
 3097            cx,
 3098        ) {
 3099            task.detach_and_log_err(cx)
 3100        }
 3101    }
 3102
 3103    fn close_all_internal(
 3104        &mut self,
 3105        retain_active_pane: bool,
 3106        save_intent: SaveIntent,
 3107        window: &mut Window,
 3108        cx: &mut Context<Self>,
 3109    ) -> Option<Task<Result<()>>> {
 3110        let current_pane = self.active_pane();
 3111
 3112        let mut tasks = Vec::new();
 3113
 3114        if retain_active_pane {
 3115            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3116                pane.close_other_items(
 3117                    &CloseOtherItems {
 3118                        save_intent: None,
 3119                        close_pinned: false,
 3120                    },
 3121                    None,
 3122                    window,
 3123                    cx,
 3124                )
 3125            });
 3126
 3127            tasks.push(current_pane_close);
 3128        }
 3129
 3130        for pane in self.panes() {
 3131            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3132                continue;
 3133            }
 3134
 3135            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3136                pane.close_all_items(
 3137                    &CloseAllItems {
 3138                        save_intent: Some(save_intent),
 3139                        close_pinned: false,
 3140                    },
 3141                    window,
 3142                    cx,
 3143                )
 3144            });
 3145
 3146            tasks.push(close_pane_items)
 3147        }
 3148
 3149        if tasks.is_empty() {
 3150            None
 3151        } else {
 3152            Some(cx.spawn_in(window, async move |_, _| {
 3153                for task in tasks {
 3154                    task.await?
 3155                }
 3156                Ok(())
 3157            }))
 3158        }
 3159    }
 3160
 3161    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3162        self.dock_at_position(position).read(cx).is_open()
 3163    }
 3164
 3165    pub fn toggle_dock(
 3166        &mut self,
 3167        dock_side: DockPosition,
 3168        window: &mut Window,
 3169        cx: &mut Context<Self>,
 3170    ) {
 3171        let mut focus_center = false;
 3172        let mut reveal_dock = false;
 3173
 3174        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3175        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3176        if was_visible {
 3177            self.save_open_dock_positions(cx);
 3178        }
 3179
 3180        let dock = self.dock_at_position(dock_side);
 3181        dock.update(cx, |dock, cx| {
 3182            dock.set_open(!was_visible, window, cx);
 3183
 3184            if dock.active_panel().is_none() {
 3185                let Some(panel_ix) = dock
 3186                    .first_enabled_panel_idx(cx)
 3187                    .log_with_level(log::Level::Info)
 3188                else {
 3189                    return;
 3190                };
 3191                dock.activate_panel(panel_ix, window, cx);
 3192            }
 3193
 3194            if let Some(active_panel) = dock.active_panel() {
 3195                if was_visible {
 3196                    if active_panel
 3197                        .panel_focus_handle(cx)
 3198                        .contains_focused(window, cx)
 3199                    {
 3200                        focus_center = true;
 3201                    }
 3202                } else {
 3203                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3204                    window.focus(focus_handle, cx);
 3205                    reveal_dock = true;
 3206                }
 3207            }
 3208        });
 3209
 3210        if reveal_dock {
 3211            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3212        }
 3213
 3214        if focus_center {
 3215            self.active_pane
 3216                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3217        }
 3218
 3219        cx.notify();
 3220        self.serialize_workspace(window, cx);
 3221    }
 3222
 3223    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3224        self.all_docks().into_iter().find(|&dock| {
 3225            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3226        })
 3227    }
 3228
 3229    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3230        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3231            self.save_open_dock_positions(cx);
 3232            dock.update(cx, |dock, cx| {
 3233                dock.set_open(false, window, cx);
 3234            });
 3235            return true;
 3236        }
 3237        false
 3238    }
 3239
 3240    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3241        self.save_open_dock_positions(cx);
 3242        for dock in self.all_docks() {
 3243            dock.update(cx, |dock, cx| {
 3244                dock.set_open(false, window, cx);
 3245            });
 3246        }
 3247
 3248        cx.focus_self(window);
 3249        cx.notify();
 3250        self.serialize_workspace(window, cx);
 3251    }
 3252
 3253    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3254        self.all_docks()
 3255            .into_iter()
 3256            .filter_map(|dock| {
 3257                let dock_ref = dock.read(cx);
 3258                if dock_ref.is_open() {
 3259                    Some(dock_ref.position())
 3260                } else {
 3261                    None
 3262                }
 3263            })
 3264            .collect()
 3265    }
 3266
 3267    /// Saves the positions of currently open docks.
 3268    ///
 3269    /// Updates `last_open_dock_positions` with positions of all currently open
 3270    /// docks, to later be restored by the 'Toggle All Docks' action.
 3271    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3272        let open_dock_positions = self.get_open_dock_positions(cx);
 3273        if !open_dock_positions.is_empty() {
 3274            self.last_open_dock_positions = open_dock_positions;
 3275        }
 3276    }
 3277
 3278    /// Toggles all docks between open and closed states.
 3279    ///
 3280    /// If any docks are open, closes all and remembers their positions. If all
 3281    /// docks are closed, restores the last remembered dock configuration.
 3282    fn toggle_all_docks(
 3283        &mut self,
 3284        _: &ToggleAllDocks,
 3285        window: &mut Window,
 3286        cx: &mut Context<Self>,
 3287    ) {
 3288        let open_dock_positions = self.get_open_dock_positions(cx);
 3289
 3290        if !open_dock_positions.is_empty() {
 3291            self.close_all_docks(window, cx);
 3292        } else if !self.last_open_dock_positions.is_empty() {
 3293            self.restore_last_open_docks(window, cx);
 3294        }
 3295    }
 3296
 3297    /// Reopens docks from the most recently remembered configuration.
 3298    ///
 3299    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3300    /// and clears the stored positions.
 3301    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3302        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3303
 3304        for position in positions_to_open {
 3305            let dock = self.dock_at_position(position);
 3306            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3307        }
 3308
 3309        cx.focus_self(window);
 3310        cx.notify();
 3311        self.serialize_workspace(window, cx);
 3312    }
 3313
 3314    /// Transfer focus to the panel of the given type.
 3315    pub fn focus_panel<T: Panel>(
 3316        &mut self,
 3317        window: &mut Window,
 3318        cx: &mut Context<Self>,
 3319    ) -> Option<Entity<T>> {
 3320        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3321        panel.to_any().downcast().ok()
 3322    }
 3323
 3324    /// Focus the panel of the given type if it isn't already focused. If it is
 3325    /// already focused, then transfer focus back to the workspace center.
 3326    pub fn toggle_panel_focus<T: Panel>(
 3327        &mut self,
 3328        window: &mut Window,
 3329        cx: &mut Context<Self>,
 3330    ) -> bool {
 3331        let mut did_focus_panel = false;
 3332        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3333            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3334            did_focus_panel
 3335        });
 3336        did_focus_panel
 3337    }
 3338
 3339    pub fn activate_panel_for_proto_id(
 3340        &mut self,
 3341        panel_id: PanelId,
 3342        window: &mut Window,
 3343        cx: &mut Context<Self>,
 3344    ) -> Option<Arc<dyn PanelHandle>> {
 3345        let mut panel = None;
 3346        for dock in self.all_docks() {
 3347            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3348                panel = dock.update(cx, |dock, cx| {
 3349                    dock.activate_panel(panel_index, window, cx);
 3350                    dock.set_open(true, window, cx);
 3351                    dock.active_panel().cloned()
 3352                });
 3353                break;
 3354            }
 3355        }
 3356
 3357        if panel.is_some() {
 3358            cx.notify();
 3359            self.serialize_workspace(window, cx);
 3360        }
 3361
 3362        panel
 3363    }
 3364
 3365    /// Focus or unfocus the given panel type, depending on the given callback.
 3366    fn focus_or_unfocus_panel<T: Panel>(
 3367        &mut self,
 3368        window: &mut Window,
 3369        cx: &mut Context<Self>,
 3370        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3371    ) -> Option<Arc<dyn PanelHandle>> {
 3372        let mut result_panel = None;
 3373        let mut serialize = false;
 3374        for dock in self.all_docks() {
 3375            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3376                let mut focus_center = false;
 3377                let panel = dock.update(cx, |dock, cx| {
 3378                    dock.activate_panel(panel_index, window, cx);
 3379
 3380                    let panel = dock.active_panel().cloned();
 3381                    if let Some(panel) = panel.as_ref() {
 3382                        if should_focus(&**panel, window, cx) {
 3383                            dock.set_open(true, window, cx);
 3384                            panel.panel_focus_handle(cx).focus(window, cx);
 3385                        } else {
 3386                            focus_center = true;
 3387                        }
 3388                    }
 3389                    panel
 3390                });
 3391
 3392                if focus_center {
 3393                    self.active_pane
 3394                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3395                }
 3396
 3397                result_panel = panel;
 3398                serialize = true;
 3399                break;
 3400            }
 3401        }
 3402
 3403        if serialize {
 3404            self.serialize_workspace(window, cx);
 3405        }
 3406
 3407        cx.notify();
 3408        result_panel
 3409    }
 3410
 3411    /// Open the panel of the given type
 3412    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3413        for dock in self.all_docks() {
 3414            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3415                dock.update(cx, |dock, cx| {
 3416                    dock.activate_panel(panel_index, window, cx);
 3417                    dock.set_open(true, window, cx);
 3418                });
 3419            }
 3420        }
 3421    }
 3422
 3423    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3424        for dock in self.all_docks().iter() {
 3425            dock.update(cx, |dock, cx| {
 3426                if dock.panel::<T>().is_some() {
 3427                    dock.set_open(false, window, cx)
 3428                }
 3429            })
 3430        }
 3431    }
 3432
 3433    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3434        self.all_docks()
 3435            .iter()
 3436            .find_map(|dock| dock.read(cx).panel::<T>())
 3437    }
 3438
 3439    fn dismiss_zoomed_items_to_reveal(
 3440        &mut self,
 3441        dock_to_reveal: Option<DockPosition>,
 3442        window: &mut Window,
 3443        cx: &mut Context<Self>,
 3444    ) {
 3445        // If a center pane is zoomed, unzoom it.
 3446        for pane in &self.panes {
 3447            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3448                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3449            }
 3450        }
 3451
 3452        // If another dock is zoomed, hide it.
 3453        let mut focus_center = false;
 3454        for dock in self.all_docks() {
 3455            dock.update(cx, |dock, cx| {
 3456                if Some(dock.position()) != dock_to_reveal
 3457                    && let Some(panel) = dock.active_panel()
 3458                    && panel.is_zoomed(window, cx)
 3459                {
 3460                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3461                    dock.set_open(false, window, cx);
 3462                }
 3463            });
 3464        }
 3465
 3466        if focus_center {
 3467            self.active_pane
 3468                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3469        }
 3470
 3471        if self.zoomed_position != dock_to_reveal {
 3472            self.zoomed = None;
 3473            self.zoomed_position = None;
 3474            cx.emit(Event::ZoomChanged);
 3475        }
 3476
 3477        cx.notify();
 3478    }
 3479
 3480    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3481        let pane = cx.new(|cx| {
 3482            let mut pane = Pane::new(
 3483                self.weak_handle(),
 3484                self.project.clone(),
 3485                self.pane_history_timestamp.clone(),
 3486                None,
 3487                NewFile.boxed_clone(),
 3488                true,
 3489                window,
 3490                cx,
 3491            );
 3492            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3493            pane
 3494        });
 3495        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3496            .detach();
 3497        self.panes.push(pane.clone());
 3498
 3499        window.focus(&pane.focus_handle(cx), cx);
 3500
 3501        cx.emit(Event::PaneAdded(pane.clone()));
 3502        pane
 3503    }
 3504
 3505    pub fn add_item_to_center(
 3506        &mut self,
 3507        item: Box<dyn ItemHandle>,
 3508        window: &mut Window,
 3509        cx: &mut Context<Self>,
 3510    ) -> bool {
 3511        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3512            if let Some(center_pane) = center_pane.upgrade() {
 3513                center_pane.update(cx, |pane, cx| {
 3514                    pane.add_item(item, true, true, None, window, cx)
 3515                });
 3516                true
 3517            } else {
 3518                false
 3519            }
 3520        } else {
 3521            false
 3522        }
 3523    }
 3524
 3525    pub fn add_item_to_active_pane(
 3526        &mut self,
 3527        item: Box<dyn ItemHandle>,
 3528        destination_index: Option<usize>,
 3529        focus_item: bool,
 3530        window: &mut Window,
 3531        cx: &mut App,
 3532    ) {
 3533        self.add_item(
 3534            self.active_pane.clone(),
 3535            item,
 3536            destination_index,
 3537            false,
 3538            focus_item,
 3539            window,
 3540            cx,
 3541        )
 3542    }
 3543
 3544    pub fn add_item(
 3545        &mut self,
 3546        pane: Entity<Pane>,
 3547        item: Box<dyn ItemHandle>,
 3548        destination_index: Option<usize>,
 3549        activate_pane: bool,
 3550        focus_item: bool,
 3551        window: &mut Window,
 3552        cx: &mut App,
 3553    ) {
 3554        pane.update(cx, |pane, cx| {
 3555            pane.add_item(
 3556                item,
 3557                activate_pane,
 3558                focus_item,
 3559                destination_index,
 3560                window,
 3561                cx,
 3562            )
 3563        });
 3564    }
 3565
 3566    pub fn split_item(
 3567        &mut self,
 3568        split_direction: SplitDirection,
 3569        item: Box<dyn ItemHandle>,
 3570        window: &mut Window,
 3571        cx: &mut Context<Self>,
 3572    ) {
 3573        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3574        self.add_item(new_pane, item, None, true, true, window, cx);
 3575    }
 3576
 3577    pub fn open_abs_path(
 3578        &mut self,
 3579        abs_path: PathBuf,
 3580        options: OpenOptions,
 3581        window: &mut Window,
 3582        cx: &mut Context<Self>,
 3583    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3584        cx.spawn_in(window, async move |workspace, cx| {
 3585            let open_paths_task_result = workspace
 3586                .update_in(cx, |workspace, window, cx| {
 3587                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3588                })
 3589                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3590                .await;
 3591            anyhow::ensure!(
 3592                open_paths_task_result.len() == 1,
 3593                "open abs path {abs_path:?} task returned incorrect number of results"
 3594            );
 3595            match open_paths_task_result
 3596                .into_iter()
 3597                .next()
 3598                .expect("ensured single task result")
 3599            {
 3600                Some(open_result) => {
 3601                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3602                }
 3603                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3604            }
 3605        })
 3606    }
 3607
 3608    pub fn split_abs_path(
 3609        &mut self,
 3610        abs_path: PathBuf,
 3611        visible: bool,
 3612        window: &mut Window,
 3613        cx: &mut Context<Self>,
 3614    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3615        let project_path_task =
 3616            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3617        cx.spawn_in(window, async move |this, cx| {
 3618            let (_, path) = project_path_task.await?;
 3619            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3620                .await
 3621        })
 3622    }
 3623
 3624    pub fn open_path(
 3625        &mut self,
 3626        path: impl Into<ProjectPath>,
 3627        pane: Option<WeakEntity<Pane>>,
 3628        focus_item: bool,
 3629        window: &mut Window,
 3630        cx: &mut App,
 3631    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3632        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3633    }
 3634
 3635    pub fn open_path_preview(
 3636        &mut self,
 3637        path: impl Into<ProjectPath>,
 3638        pane: Option<WeakEntity<Pane>>,
 3639        focus_item: bool,
 3640        allow_preview: bool,
 3641        activate: bool,
 3642        window: &mut Window,
 3643        cx: &mut App,
 3644    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3645        let pane = pane.unwrap_or_else(|| {
 3646            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3647                self.panes
 3648                    .first()
 3649                    .expect("There must be an active pane")
 3650                    .downgrade()
 3651            })
 3652        });
 3653
 3654        let project_path = path.into();
 3655        let task = self.load_path(project_path.clone(), window, cx);
 3656        window.spawn(cx, async move |cx| {
 3657            let (project_entry_id, build_item) = task.await?;
 3658
 3659            pane.update_in(cx, |pane, window, cx| {
 3660                pane.open_item(
 3661                    project_entry_id,
 3662                    project_path,
 3663                    focus_item,
 3664                    allow_preview,
 3665                    activate,
 3666                    None,
 3667                    window,
 3668                    cx,
 3669                    build_item,
 3670                )
 3671            })
 3672        })
 3673    }
 3674
 3675    pub fn split_path(
 3676        &mut self,
 3677        path: impl Into<ProjectPath>,
 3678        window: &mut Window,
 3679        cx: &mut Context<Self>,
 3680    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3681        self.split_path_preview(path, false, None, window, cx)
 3682    }
 3683
 3684    pub fn split_path_preview(
 3685        &mut self,
 3686        path: impl Into<ProjectPath>,
 3687        allow_preview: bool,
 3688        split_direction: Option<SplitDirection>,
 3689        window: &mut Window,
 3690        cx: &mut Context<Self>,
 3691    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3692        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3693            self.panes
 3694                .first()
 3695                .expect("There must be an active pane")
 3696                .downgrade()
 3697        });
 3698
 3699        if let Member::Pane(center_pane) = &self.center.root
 3700            && center_pane.read(cx).items_len() == 0
 3701        {
 3702            return self.open_path(path, Some(pane), true, window, cx);
 3703        }
 3704
 3705        let project_path = path.into();
 3706        let task = self.load_path(project_path.clone(), window, cx);
 3707        cx.spawn_in(window, async move |this, cx| {
 3708            let (project_entry_id, build_item) = task.await?;
 3709            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3710                let pane = pane.upgrade()?;
 3711                let new_pane = this.split_pane(
 3712                    pane,
 3713                    split_direction.unwrap_or(SplitDirection::Right),
 3714                    window,
 3715                    cx,
 3716                );
 3717                new_pane.update(cx, |new_pane, cx| {
 3718                    Some(new_pane.open_item(
 3719                        project_entry_id,
 3720                        project_path,
 3721                        true,
 3722                        allow_preview,
 3723                        true,
 3724                        None,
 3725                        window,
 3726                        cx,
 3727                        build_item,
 3728                    ))
 3729                })
 3730            })
 3731            .map(|option| option.context("pane was dropped"))?
 3732        })
 3733    }
 3734
 3735    fn load_path(
 3736        &mut self,
 3737        path: ProjectPath,
 3738        window: &mut Window,
 3739        cx: &mut App,
 3740    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3741        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3742        registry.open_path(self.project(), &path, window, cx)
 3743    }
 3744
 3745    pub fn find_project_item<T>(
 3746        &self,
 3747        pane: &Entity<Pane>,
 3748        project_item: &Entity<T::Item>,
 3749        cx: &App,
 3750    ) -> Option<Entity<T>>
 3751    where
 3752        T: ProjectItem,
 3753    {
 3754        use project::ProjectItem as _;
 3755        let project_item = project_item.read(cx);
 3756        let entry_id = project_item.entry_id(cx);
 3757        let project_path = project_item.project_path(cx);
 3758
 3759        let mut item = None;
 3760        if let Some(entry_id) = entry_id {
 3761            item = pane.read(cx).item_for_entry(entry_id, cx);
 3762        }
 3763        if item.is_none()
 3764            && let Some(project_path) = project_path
 3765        {
 3766            item = pane.read(cx).item_for_path(project_path, cx);
 3767        }
 3768
 3769        item.and_then(|item| item.downcast::<T>())
 3770    }
 3771
 3772    pub fn is_project_item_open<T>(
 3773        &self,
 3774        pane: &Entity<Pane>,
 3775        project_item: &Entity<T::Item>,
 3776        cx: &App,
 3777    ) -> bool
 3778    where
 3779        T: ProjectItem,
 3780    {
 3781        self.find_project_item::<T>(pane, project_item, cx)
 3782            .is_some()
 3783    }
 3784
 3785    pub fn open_project_item<T>(
 3786        &mut self,
 3787        pane: Entity<Pane>,
 3788        project_item: Entity<T::Item>,
 3789        activate_pane: bool,
 3790        focus_item: bool,
 3791        keep_old_preview: bool,
 3792        allow_new_preview: bool,
 3793        window: &mut Window,
 3794        cx: &mut Context<Self>,
 3795    ) -> Entity<T>
 3796    where
 3797        T: ProjectItem,
 3798    {
 3799        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3800
 3801        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3802            if !keep_old_preview
 3803                && let Some(old_id) = old_item_id
 3804                && old_id != item.item_id()
 3805            {
 3806                // switching to a different item, so unpreview old active item
 3807                pane.update(cx, |pane, _| {
 3808                    pane.unpreview_item_if_preview(old_id);
 3809                });
 3810            }
 3811
 3812            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3813            if !allow_new_preview {
 3814                pane.update(cx, |pane, _| {
 3815                    pane.unpreview_item_if_preview(item.item_id());
 3816                });
 3817            }
 3818            return item;
 3819        }
 3820
 3821        let item = pane.update(cx, |pane, cx| {
 3822            cx.new(|cx| {
 3823                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3824            })
 3825        });
 3826        let mut destination_index = None;
 3827        pane.update(cx, |pane, cx| {
 3828            if !keep_old_preview && let Some(old_id) = old_item_id {
 3829                pane.unpreview_item_if_preview(old_id);
 3830            }
 3831            if allow_new_preview {
 3832                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3833            }
 3834        });
 3835
 3836        self.add_item(
 3837            pane,
 3838            Box::new(item.clone()),
 3839            destination_index,
 3840            activate_pane,
 3841            focus_item,
 3842            window,
 3843            cx,
 3844        );
 3845        item
 3846    }
 3847
 3848    pub fn open_shared_screen(
 3849        &mut self,
 3850        peer_id: PeerId,
 3851        window: &mut Window,
 3852        cx: &mut Context<Self>,
 3853    ) {
 3854        if let Some(shared_screen) =
 3855            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3856        {
 3857            self.active_pane.update(cx, |pane, cx| {
 3858                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3859            });
 3860        }
 3861    }
 3862
 3863    pub fn activate_item(
 3864        &mut self,
 3865        item: &dyn ItemHandle,
 3866        activate_pane: bool,
 3867        focus_item: bool,
 3868        window: &mut Window,
 3869        cx: &mut App,
 3870    ) -> bool {
 3871        let result = self.panes.iter().find_map(|pane| {
 3872            pane.read(cx)
 3873                .index_for_item(item)
 3874                .map(|ix| (pane.clone(), ix))
 3875        });
 3876        if let Some((pane, ix)) = result {
 3877            pane.update(cx, |pane, cx| {
 3878                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3879            });
 3880            true
 3881        } else {
 3882            false
 3883        }
 3884    }
 3885
 3886    fn activate_pane_at_index(
 3887        &mut self,
 3888        action: &ActivatePane,
 3889        window: &mut Window,
 3890        cx: &mut Context<Self>,
 3891    ) {
 3892        let panes = self.center.panes();
 3893        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3894            window.focus(&pane.focus_handle(cx), cx);
 3895        } else {
 3896            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3897                .detach();
 3898        }
 3899    }
 3900
 3901    fn move_item_to_pane_at_index(
 3902        &mut self,
 3903        action: &MoveItemToPane,
 3904        window: &mut Window,
 3905        cx: &mut Context<Self>,
 3906    ) {
 3907        let panes = self.center.panes();
 3908        let destination = match panes.get(action.destination) {
 3909            Some(&destination) => destination.clone(),
 3910            None => {
 3911                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3912                    return;
 3913                }
 3914                let direction = SplitDirection::Right;
 3915                let split_off_pane = self
 3916                    .find_pane_in_direction(direction, cx)
 3917                    .unwrap_or_else(|| self.active_pane.clone());
 3918                let new_pane = self.add_pane(window, cx);
 3919                if self
 3920                    .center
 3921                    .split(&split_off_pane, &new_pane, direction, cx)
 3922                    .log_err()
 3923                    .is_none()
 3924                {
 3925                    return;
 3926                };
 3927                new_pane
 3928            }
 3929        };
 3930
 3931        if action.clone {
 3932            if self
 3933                .active_pane
 3934                .read(cx)
 3935                .active_item()
 3936                .is_some_and(|item| item.can_split(cx))
 3937            {
 3938                clone_active_item(
 3939                    self.database_id(),
 3940                    &self.active_pane,
 3941                    &destination,
 3942                    action.focus,
 3943                    window,
 3944                    cx,
 3945                );
 3946                return;
 3947            }
 3948        }
 3949        move_active_item(
 3950            &self.active_pane,
 3951            &destination,
 3952            action.focus,
 3953            true,
 3954            window,
 3955            cx,
 3956        )
 3957    }
 3958
 3959    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3960        let panes = self.center.panes();
 3961        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3962            let next_ix = (ix + 1) % panes.len();
 3963            let next_pane = panes[next_ix].clone();
 3964            window.focus(&next_pane.focus_handle(cx), cx);
 3965        }
 3966    }
 3967
 3968    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3969        let panes = self.center.panes();
 3970        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3971            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3972            let prev_pane = panes[prev_ix].clone();
 3973            window.focus(&prev_pane.focus_handle(cx), cx);
 3974        }
 3975    }
 3976
 3977    pub fn activate_pane_in_direction(
 3978        &mut self,
 3979        direction: SplitDirection,
 3980        window: &mut Window,
 3981        cx: &mut App,
 3982    ) {
 3983        use ActivateInDirectionTarget as Target;
 3984        enum Origin {
 3985            LeftDock,
 3986            RightDock,
 3987            BottomDock,
 3988            Center,
 3989        }
 3990
 3991        let origin: Origin = [
 3992            (&self.left_dock, Origin::LeftDock),
 3993            (&self.right_dock, Origin::RightDock),
 3994            (&self.bottom_dock, Origin::BottomDock),
 3995        ]
 3996        .into_iter()
 3997        .find_map(|(dock, origin)| {
 3998            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3999                Some(origin)
 4000            } else {
 4001                None
 4002            }
 4003        })
 4004        .unwrap_or(Origin::Center);
 4005
 4006        let get_last_active_pane = || {
 4007            let pane = self
 4008                .last_active_center_pane
 4009                .clone()
 4010                .unwrap_or_else(|| {
 4011                    self.panes
 4012                        .first()
 4013                        .expect("There must be an active pane")
 4014                        .downgrade()
 4015                })
 4016                .upgrade()?;
 4017            (pane.read(cx).items_len() != 0).then_some(pane)
 4018        };
 4019
 4020        let try_dock =
 4021            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4022
 4023        let target = match (origin, direction) {
 4024            // We're in the center, so we first try to go to a different pane,
 4025            // otherwise try to go to a dock.
 4026            (Origin::Center, direction) => {
 4027                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4028                    Some(Target::Pane(pane))
 4029                } else {
 4030                    match direction {
 4031                        SplitDirection::Up => None,
 4032                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4033                        SplitDirection::Left => try_dock(&self.left_dock),
 4034                        SplitDirection::Right => try_dock(&self.right_dock),
 4035                    }
 4036                }
 4037            }
 4038
 4039            (Origin::LeftDock, SplitDirection::Right) => {
 4040                if let Some(last_active_pane) = get_last_active_pane() {
 4041                    Some(Target::Pane(last_active_pane))
 4042                } else {
 4043                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4044                }
 4045            }
 4046
 4047            (Origin::LeftDock, SplitDirection::Down)
 4048            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4049
 4050            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4051            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4052            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4053
 4054            (Origin::RightDock, SplitDirection::Left) => {
 4055                if let Some(last_active_pane) = get_last_active_pane() {
 4056                    Some(Target::Pane(last_active_pane))
 4057                } else {
 4058                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4059                }
 4060            }
 4061
 4062            _ => None,
 4063        };
 4064
 4065        match target {
 4066            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4067                let pane = pane.read(cx);
 4068                if let Some(item) = pane.active_item() {
 4069                    item.item_focus_handle(cx).focus(window, cx);
 4070                } else {
 4071                    log::error!(
 4072                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4073                    );
 4074                }
 4075            }
 4076            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4077                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4078                window.defer(cx, move |window, cx| {
 4079                    let dock = dock.read(cx);
 4080                    if let Some(panel) = dock.active_panel() {
 4081                        panel.panel_focus_handle(cx).focus(window, cx);
 4082                    } else {
 4083                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4084                    }
 4085                })
 4086            }
 4087            None => {}
 4088        }
 4089    }
 4090
 4091    pub fn move_item_to_pane_in_direction(
 4092        &mut self,
 4093        action: &MoveItemToPaneInDirection,
 4094        window: &mut Window,
 4095        cx: &mut Context<Self>,
 4096    ) {
 4097        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4098            Some(destination) => destination,
 4099            None => {
 4100                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4101                    return;
 4102                }
 4103                let new_pane = self.add_pane(window, cx);
 4104                if self
 4105                    .center
 4106                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4107                    .log_err()
 4108                    .is_none()
 4109                {
 4110                    return;
 4111                };
 4112                new_pane
 4113            }
 4114        };
 4115
 4116        if action.clone {
 4117            if self
 4118                .active_pane
 4119                .read(cx)
 4120                .active_item()
 4121                .is_some_and(|item| item.can_split(cx))
 4122            {
 4123                clone_active_item(
 4124                    self.database_id(),
 4125                    &self.active_pane,
 4126                    &destination,
 4127                    action.focus,
 4128                    window,
 4129                    cx,
 4130                );
 4131                return;
 4132            }
 4133        }
 4134        move_active_item(
 4135            &self.active_pane,
 4136            &destination,
 4137            action.focus,
 4138            true,
 4139            window,
 4140            cx,
 4141        );
 4142    }
 4143
 4144    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4145        self.center.bounding_box_for_pane(pane)
 4146    }
 4147
 4148    pub fn find_pane_in_direction(
 4149        &mut self,
 4150        direction: SplitDirection,
 4151        cx: &App,
 4152    ) -> Option<Entity<Pane>> {
 4153        self.center
 4154            .find_pane_in_direction(&self.active_pane, direction, cx)
 4155            .cloned()
 4156    }
 4157
 4158    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4159        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4160            self.center.swap(&self.active_pane, &to, cx);
 4161            cx.notify();
 4162        }
 4163    }
 4164
 4165    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4166        if self
 4167            .center
 4168            .move_to_border(&self.active_pane, direction, cx)
 4169            .unwrap()
 4170        {
 4171            cx.notify();
 4172        }
 4173    }
 4174
 4175    pub fn resize_pane(
 4176        &mut self,
 4177        axis: gpui::Axis,
 4178        amount: Pixels,
 4179        window: &mut Window,
 4180        cx: &mut Context<Self>,
 4181    ) {
 4182        let docks = self.all_docks();
 4183        let active_dock = docks
 4184            .into_iter()
 4185            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4186
 4187        if let Some(dock) = active_dock {
 4188            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4189                return;
 4190            };
 4191            match dock.read(cx).position() {
 4192                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4193                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4194                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4195            }
 4196        } else {
 4197            self.center
 4198                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4199        }
 4200        cx.notify();
 4201    }
 4202
 4203    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4204        self.center.reset_pane_sizes(cx);
 4205        cx.notify();
 4206    }
 4207
 4208    fn handle_pane_focused(
 4209        &mut self,
 4210        pane: Entity<Pane>,
 4211        window: &mut Window,
 4212        cx: &mut Context<Self>,
 4213    ) {
 4214        // This is explicitly hoisted out of the following check for pane identity as
 4215        // terminal panel panes are not registered as a center panes.
 4216        self.status_bar.update(cx, |status_bar, cx| {
 4217            status_bar.set_active_pane(&pane, window, cx);
 4218        });
 4219        if self.active_pane != pane {
 4220            self.set_active_pane(&pane, window, cx);
 4221        }
 4222
 4223        if self.last_active_center_pane.is_none() {
 4224            self.last_active_center_pane = Some(pane.downgrade());
 4225        }
 4226
 4227        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4228        if pane.read(cx).is_zoomed() {
 4229            self.zoomed = Some(pane.downgrade().into());
 4230        } else {
 4231            self.zoomed = None;
 4232        }
 4233        self.zoomed_position = None;
 4234        cx.emit(Event::ZoomChanged);
 4235        self.update_active_view_for_followers(window, cx);
 4236        pane.update(cx, |pane, _| {
 4237            pane.track_alternate_file_items();
 4238        });
 4239
 4240        cx.notify();
 4241    }
 4242
 4243    fn set_active_pane(
 4244        &mut self,
 4245        pane: &Entity<Pane>,
 4246        window: &mut Window,
 4247        cx: &mut Context<Self>,
 4248    ) {
 4249        self.active_pane = pane.clone();
 4250        self.active_item_path_changed(true, window, cx);
 4251        self.last_active_center_pane = Some(pane.downgrade());
 4252    }
 4253
 4254    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4255        self.update_active_view_for_followers(window, cx);
 4256    }
 4257
 4258    fn handle_pane_event(
 4259        &mut self,
 4260        pane: &Entity<Pane>,
 4261        event: &pane::Event,
 4262        window: &mut Window,
 4263        cx: &mut Context<Self>,
 4264    ) {
 4265        let mut serialize_workspace = true;
 4266        match event {
 4267            pane::Event::AddItem { item } => {
 4268                item.added_to_pane(self, pane.clone(), window, cx);
 4269                cx.emit(Event::ItemAdded {
 4270                    item: item.boxed_clone(),
 4271                });
 4272            }
 4273            pane::Event::Split { direction, mode } => {
 4274                match mode {
 4275                    SplitMode::ClonePane => {
 4276                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4277                            .detach();
 4278                    }
 4279                    SplitMode::EmptyPane => {
 4280                        self.split_pane(pane.clone(), *direction, window, cx);
 4281                    }
 4282                    SplitMode::MovePane => {
 4283                        self.split_and_move(pane.clone(), *direction, window, cx);
 4284                    }
 4285                };
 4286            }
 4287            pane::Event::JoinIntoNext => {
 4288                self.join_pane_into_next(pane.clone(), window, cx);
 4289            }
 4290            pane::Event::JoinAll => {
 4291                self.join_all_panes(window, cx);
 4292            }
 4293            pane::Event::Remove { focus_on_pane } => {
 4294                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4295            }
 4296            pane::Event::ActivateItem {
 4297                local,
 4298                focus_changed,
 4299            } => {
 4300                window.invalidate_character_coordinates();
 4301
 4302                pane.update(cx, |pane, _| {
 4303                    pane.track_alternate_file_items();
 4304                });
 4305                if *local {
 4306                    self.unfollow_in_pane(pane, window, cx);
 4307                }
 4308                serialize_workspace = *focus_changed || pane != self.active_pane();
 4309                if pane == self.active_pane() {
 4310                    self.active_item_path_changed(*focus_changed, window, cx);
 4311                    self.update_active_view_for_followers(window, cx);
 4312                } else if *local {
 4313                    self.set_active_pane(pane, window, cx);
 4314                }
 4315            }
 4316            pane::Event::UserSavedItem { item, save_intent } => {
 4317                cx.emit(Event::UserSavedItem {
 4318                    pane: pane.downgrade(),
 4319                    item: item.boxed_clone(),
 4320                    save_intent: *save_intent,
 4321                });
 4322                serialize_workspace = false;
 4323            }
 4324            pane::Event::ChangeItemTitle => {
 4325                if *pane == self.active_pane {
 4326                    self.active_item_path_changed(false, window, cx);
 4327                }
 4328                serialize_workspace = false;
 4329            }
 4330            pane::Event::RemovedItem { item } => {
 4331                cx.emit(Event::ActiveItemChanged);
 4332                self.update_window_edited(window, cx);
 4333                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4334                    && entry.get().entity_id() == pane.entity_id()
 4335                {
 4336                    entry.remove();
 4337                }
 4338                cx.emit(Event::ItemRemoved {
 4339                    item_id: item.item_id(),
 4340                });
 4341            }
 4342            pane::Event::Focus => {
 4343                window.invalidate_character_coordinates();
 4344                self.handle_pane_focused(pane.clone(), window, cx);
 4345            }
 4346            pane::Event::ZoomIn => {
 4347                if *pane == self.active_pane {
 4348                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4349                    if pane.read(cx).has_focus(window, cx) {
 4350                        self.zoomed = Some(pane.downgrade().into());
 4351                        self.zoomed_position = None;
 4352                        cx.emit(Event::ZoomChanged);
 4353                    }
 4354                    cx.notify();
 4355                }
 4356            }
 4357            pane::Event::ZoomOut => {
 4358                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4359                if self.zoomed_position.is_none() {
 4360                    self.zoomed = None;
 4361                    cx.emit(Event::ZoomChanged);
 4362                }
 4363                cx.notify();
 4364            }
 4365            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4366        }
 4367
 4368        if serialize_workspace {
 4369            self.serialize_workspace(window, cx);
 4370        }
 4371    }
 4372
 4373    pub fn unfollow_in_pane(
 4374        &mut self,
 4375        pane: &Entity<Pane>,
 4376        window: &mut Window,
 4377        cx: &mut Context<Workspace>,
 4378    ) -> Option<CollaboratorId> {
 4379        let leader_id = self.leader_for_pane(pane)?;
 4380        self.unfollow(leader_id, window, cx);
 4381        Some(leader_id)
 4382    }
 4383
 4384    pub fn split_pane(
 4385        &mut self,
 4386        pane_to_split: Entity<Pane>,
 4387        split_direction: SplitDirection,
 4388        window: &mut Window,
 4389        cx: &mut Context<Self>,
 4390    ) -> Entity<Pane> {
 4391        let new_pane = self.add_pane(window, cx);
 4392        self.center
 4393            .split(&pane_to_split, &new_pane, split_direction, cx)
 4394            .unwrap();
 4395        cx.notify();
 4396        new_pane
 4397    }
 4398
 4399    pub fn split_and_move(
 4400        &mut self,
 4401        pane: Entity<Pane>,
 4402        direction: SplitDirection,
 4403        window: &mut Window,
 4404        cx: &mut Context<Self>,
 4405    ) {
 4406        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4407            return;
 4408        };
 4409        let new_pane = self.add_pane(window, cx);
 4410        new_pane.update(cx, |pane, cx| {
 4411            pane.add_item(item, true, true, None, window, cx)
 4412        });
 4413        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4414        cx.notify();
 4415    }
 4416
 4417    pub fn split_and_clone(
 4418        &mut self,
 4419        pane: Entity<Pane>,
 4420        direction: SplitDirection,
 4421        window: &mut Window,
 4422        cx: &mut Context<Self>,
 4423    ) -> Task<Option<Entity<Pane>>> {
 4424        let Some(item) = pane.read(cx).active_item() else {
 4425            return Task::ready(None);
 4426        };
 4427        if !item.can_split(cx) {
 4428            return Task::ready(None);
 4429        }
 4430        let task = item.clone_on_split(self.database_id(), window, cx);
 4431        cx.spawn_in(window, async move |this, cx| {
 4432            if let Some(clone) = task.await {
 4433                this.update_in(cx, |this, window, cx| {
 4434                    let new_pane = this.add_pane(window, cx);
 4435                    new_pane.update(cx, |pane, cx| {
 4436                        pane.add_item(clone, true, true, None, window, cx)
 4437                    });
 4438                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4439                    cx.notify();
 4440                    new_pane
 4441                })
 4442                .ok()
 4443            } else {
 4444                None
 4445            }
 4446        })
 4447    }
 4448
 4449    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4450        let active_item = self.active_pane.read(cx).active_item();
 4451        for pane in &self.panes {
 4452            join_pane_into_active(&self.active_pane, pane, window, cx);
 4453        }
 4454        if let Some(active_item) = active_item {
 4455            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4456        }
 4457        cx.notify();
 4458    }
 4459
 4460    pub fn join_pane_into_next(
 4461        &mut self,
 4462        pane: Entity<Pane>,
 4463        window: &mut Window,
 4464        cx: &mut Context<Self>,
 4465    ) {
 4466        let next_pane = self
 4467            .find_pane_in_direction(SplitDirection::Right, cx)
 4468            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4469            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4470            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4471        let Some(next_pane) = next_pane else {
 4472            return;
 4473        };
 4474        move_all_items(&pane, &next_pane, window, cx);
 4475        cx.notify();
 4476    }
 4477
 4478    fn remove_pane(
 4479        &mut self,
 4480        pane: Entity<Pane>,
 4481        focus_on: Option<Entity<Pane>>,
 4482        window: &mut Window,
 4483        cx: &mut Context<Self>,
 4484    ) {
 4485        if self.center.remove(&pane, cx).unwrap() {
 4486            self.force_remove_pane(&pane, &focus_on, window, cx);
 4487            self.unfollow_in_pane(&pane, window, cx);
 4488            self.last_leaders_by_pane.remove(&pane.downgrade());
 4489            for removed_item in pane.read(cx).items() {
 4490                self.panes_by_item.remove(&removed_item.item_id());
 4491            }
 4492
 4493            cx.notify();
 4494        } else {
 4495            self.active_item_path_changed(true, window, cx);
 4496        }
 4497        cx.emit(Event::PaneRemoved);
 4498    }
 4499
 4500    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4501        &mut self.panes
 4502    }
 4503
 4504    pub fn panes(&self) -> &[Entity<Pane>] {
 4505        &self.panes
 4506    }
 4507
 4508    pub fn active_pane(&self) -> &Entity<Pane> {
 4509        &self.active_pane
 4510    }
 4511
 4512    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4513        for dock in self.all_docks() {
 4514            if dock.focus_handle(cx).contains_focused(window, cx)
 4515                && let Some(pane) = dock
 4516                    .read(cx)
 4517                    .active_panel()
 4518                    .and_then(|panel| panel.pane(cx))
 4519            {
 4520                return pane;
 4521            }
 4522        }
 4523        self.active_pane().clone()
 4524    }
 4525
 4526    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4527        self.find_pane_in_direction(SplitDirection::Right, cx)
 4528            .unwrap_or_else(|| {
 4529                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4530            })
 4531    }
 4532
 4533    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4534        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4535        weak_pane.upgrade()
 4536    }
 4537
 4538    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4539        self.follower_states.retain(|leader_id, state| {
 4540            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4541                for item in state.items_by_leader_view_id.values() {
 4542                    item.view.set_leader_id(None, window, cx);
 4543                }
 4544                false
 4545            } else {
 4546                true
 4547            }
 4548        });
 4549        cx.notify();
 4550    }
 4551
 4552    pub fn start_following(
 4553        &mut self,
 4554        leader_id: impl Into<CollaboratorId>,
 4555        window: &mut Window,
 4556        cx: &mut Context<Self>,
 4557    ) -> Option<Task<Result<()>>> {
 4558        let leader_id = leader_id.into();
 4559        let pane = self.active_pane().clone();
 4560
 4561        self.last_leaders_by_pane
 4562            .insert(pane.downgrade(), leader_id);
 4563        self.unfollow(leader_id, window, cx);
 4564        self.unfollow_in_pane(&pane, window, cx);
 4565        self.follower_states.insert(
 4566            leader_id,
 4567            FollowerState {
 4568                center_pane: pane.clone(),
 4569                dock_pane: None,
 4570                active_view_id: None,
 4571                items_by_leader_view_id: Default::default(),
 4572            },
 4573        );
 4574        cx.notify();
 4575
 4576        match leader_id {
 4577            CollaboratorId::PeerId(leader_peer_id) => {
 4578                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4579                let project_id = self.project.read(cx).remote_id();
 4580                let request = self.app_state.client.request(proto::Follow {
 4581                    room_id,
 4582                    project_id,
 4583                    leader_id: Some(leader_peer_id),
 4584                });
 4585
 4586                Some(cx.spawn_in(window, async move |this, cx| {
 4587                    let response = request.await?;
 4588                    this.update(cx, |this, _| {
 4589                        let state = this
 4590                            .follower_states
 4591                            .get_mut(&leader_id)
 4592                            .context("following interrupted")?;
 4593                        state.active_view_id = response
 4594                            .active_view
 4595                            .as_ref()
 4596                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4597                        anyhow::Ok(())
 4598                    })??;
 4599                    if let Some(view) = response.active_view {
 4600                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4601                    }
 4602                    this.update_in(cx, |this, window, cx| {
 4603                        this.leader_updated(leader_id, window, cx)
 4604                    })?;
 4605                    Ok(())
 4606                }))
 4607            }
 4608            CollaboratorId::Agent => {
 4609                self.leader_updated(leader_id, window, cx)?;
 4610                Some(Task::ready(Ok(())))
 4611            }
 4612        }
 4613    }
 4614
 4615    pub fn follow_next_collaborator(
 4616        &mut self,
 4617        _: &FollowNextCollaborator,
 4618        window: &mut Window,
 4619        cx: &mut Context<Self>,
 4620    ) {
 4621        let collaborators = self.project.read(cx).collaborators();
 4622        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4623            let mut collaborators = collaborators.keys().copied();
 4624            for peer_id in collaborators.by_ref() {
 4625                if CollaboratorId::PeerId(peer_id) == leader_id {
 4626                    break;
 4627                }
 4628            }
 4629            collaborators.next().map(CollaboratorId::PeerId)
 4630        } else if let Some(last_leader_id) =
 4631            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4632        {
 4633            match last_leader_id {
 4634                CollaboratorId::PeerId(peer_id) => {
 4635                    if collaborators.contains_key(peer_id) {
 4636                        Some(*last_leader_id)
 4637                    } else {
 4638                        None
 4639                    }
 4640                }
 4641                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4642            }
 4643        } else {
 4644            None
 4645        };
 4646
 4647        let pane = self.active_pane.clone();
 4648        let Some(leader_id) = next_leader_id.or_else(|| {
 4649            Some(CollaboratorId::PeerId(
 4650                collaborators.keys().copied().next()?,
 4651            ))
 4652        }) else {
 4653            return;
 4654        };
 4655        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4656            return;
 4657        }
 4658        if let Some(task) = self.start_following(leader_id, window, cx) {
 4659            task.detach_and_log_err(cx)
 4660        }
 4661    }
 4662
 4663    pub fn follow(
 4664        &mut self,
 4665        leader_id: impl Into<CollaboratorId>,
 4666        window: &mut Window,
 4667        cx: &mut Context<Self>,
 4668    ) {
 4669        let leader_id = leader_id.into();
 4670
 4671        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4672            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4673                return;
 4674            };
 4675            let room = room.read(cx);
 4676            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4677                return;
 4678            };
 4679
 4680            let project = self.project.read(cx);
 4681
 4682            let other_project_id = match remote_participant.location {
 4683                call::ParticipantLocation::External => None,
 4684                call::ParticipantLocation::UnsharedProject => None,
 4685                call::ParticipantLocation::SharedProject { project_id } => {
 4686                    if Some(project_id) == project.remote_id() {
 4687                        None
 4688                    } else {
 4689                        Some(project_id)
 4690                    }
 4691                }
 4692            };
 4693
 4694            // if they are active in another project, follow there.
 4695            if let Some(project_id) = other_project_id {
 4696                let app_state = self.app_state.clone();
 4697                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4698                    .detach_and_log_err(cx);
 4699            }
 4700        }
 4701
 4702        // if you're already following, find the right pane and focus it.
 4703        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4704            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4705
 4706            return;
 4707        }
 4708
 4709        // Otherwise, follow.
 4710        if let Some(task) = self.start_following(leader_id, window, cx) {
 4711            task.detach_and_log_err(cx)
 4712        }
 4713    }
 4714
 4715    pub fn unfollow(
 4716        &mut self,
 4717        leader_id: impl Into<CollaboratorId>,
 4718        window: &mut Window,
 4719        cx: &mut Context<Self>,
 4720    ) -> Option<()> {
 4721        cx.notify();
 4722
 4723        let leader_id = leader_id.into();
 4724        let state = self.follower_states.remove(&leader_id)?;
 4725        for (_, item) in state.items_by_leader_view_id {
 4726            item.view.set_leader_id(None, window, cx);
 4727        }
 4728
 4729        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4730            let project_id = self.project.read(cx).remote_id();
 4731            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4732            self.app_state
 4733                .client
 4734                .send(proto::Unfollow {
 4735                    room_id,
 4736                    project_id,
 4737                    leader_id: Some(leader_peer_id),
 4738                })
 4739                .log_err();
 4740        }
 4741
 4742        Some(())
 4743    }
 4744
 4745    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4746        self.follower_states.contains_key(&id.into())
 4747    }
 4748
 4749    fn active_item_path_changed(
 4750        &mut self,
 4751        focus_changed: bool,
 4752        window: &mut Window,
 4753        cx: &mut Context<Self>,
 4754    ) {
 4755        cx.emit(Event::ActiveItemChanged);
 4756        let active_entry = self.active_project_path(cx);
 4757        self.project.update(cx, |project, cx| {
 4758            project.set_active_path(active_entry.clone(), cx)
 4759        });
 4760
 4761        if focus_changed && let Some(project_path) = &active_entry {
 4762            let git_store_entity = self.project.read(cx).git_store().clone();
 4763            git_store_entity.update(cx, |git_store, cx| {
 4764                git_store.set_active_repo_for_path(project_path, cx);
 4765            });
 4766        }
 4767
 4768        self.update_window_title(window, cx);
 4769    }
 4770
 4771    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4772        let project = self.project().read(cx);
 4773        let mut title = String::new();
 4774
 4775        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4776            let name = {
 4777                let settings_location = SettingsLocation {
 4778                    worktree_id: worktree.read(cx).id(),
 4779                    path: RelPath::empty(),
 4780                };
 4781
 4782                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4783                match &settings.project_name {
 4784                    Some(name) => name.as_str(),
 4785                    None => worktree.read(cx).root_name_str(),
 4786                }
 4787            };
 4788            if i > 0 {
 4789                title.push_str(", ");
 4790            }
 4791            title.push_str(name);
 4792        }
 4793
 4794        if title.is_empty() {
 4795            title = "empty project".to_string();
 4796        }
 4797
 4798        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4799            let filename = path.path.file_name().or_else(|| {
 4800                Some(
 4801                    project
 4802                        .worktree_for_id(path.worktree_id, cx)?
 4803                        .read(cx)
 4804                        .root_name_str(),
 4805                )
 4806            });
 4807
 4808            if let Some(filename) = filename {
 4809                title.push_str("");
 4810                title.push_str(filename.as_ref());
 4811            }
 4812        }
 4813
 4814        if project.is_via_collab() {
 4815            title.push_str("");
 4816        } else if project.is_shared() {
 4817            title.push_str("");
 4818        }
 4819
 4820        if let Some(last_title) = self.last_window_title.as_ref()
 4821            && &title == last_title
 4822        {
 4823            return;
 4824        }
 4825        window.set_window_title(&title);
 4826        SystemWindowTabController::update_tab_title(
 4827            cx,
 4828            window.window_handle().window_id(),
 4829            SharedString::from(&title),
 4830        );
 4831        self.last_window_title = Some(title);
 4832    }
 4833
 4834    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4835        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4836        if is_edited != self.window_edited {
 4837            self.window_edited = is_edited;
 4838            window.set_window_edited(self.window_edited)
 4839        }
 4840    }
 4841
 4842    fn update_item_dirty_state(
 4843        &mut self,
 4844        item: &dyn ItemHandle,
 4845        window: &mut Window,
 4846        cx: &mut App,
 4847    ) {
 4848        let is_dirty = item.is_dirty(cx);
 4849        let item_id = item.item_id();
 4850        let was_dirty = self.dirty_items.contains_key(&item_id);
 4851        if is_dirty == was_dirty {
 4852            return;
 4853        }
 4854        if was_dirty {
 4855            self.dirty_items.remove(&item_id);
 4856            self.update_window_edited(window, cx);
 4857            return;
 4858        }
 4859        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4860            let s = item.on_release(
 4861                cx,
 4862                Box::new(move |cx| {
 4863                    window_handle
 4864                        .update(cx, |this, window, cx| {
 4865                            this.dirty_items.remove(&item_id);
 4866                            this.update_window_edited(window, cx)
 4867                        })
 4868                        .ok();
 4869                }),
 4870            );
 4871            self.dirty_items.insert(item_id, s);
 4872            self.update_window_edited(window, cx);
 4873        }
 4874    }
 4875
 4876    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4877        if self.notifications.is_empty() {
 4878            None
 4879        } else {
 4880            Some(
 4881                div()
 4882                    .absolute()
 4883                    .right_3()
 4884                    .bottom_3()
 4885                    .w_112()
 4886                    .h_full()
 4887                    .flex()
 4888                    .flex_col()
 4889                    .justify_end()
 4890                    .gap_2()
 4891                    .children(
 4892                        self.notifications
 4893                            .iter()
 4894                            .map(|(_, notification)| notification.clone().into_any()),
 4895                    ),
 4896            )
 4897        }
 4898    }
 4899
 4900    // RPC handlers
 4901
 4902    fn active_view_for_follower(
 4903        &self,
 4904        follower_project_id: Option<u64>,
 4905        window: &mut Window,
 4906        cx: &mut Context<Self>,
 4907    ) -> Option<proto::View> {
 4908        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4909        let item = item?;
 4910        let leader_id = self
 4911            .pane_for(&*item)
 4912            .and_then(|pane| self.leader_for_pane(&pane));
 4913        let leader_peer_id = match leader_id {
 4914            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4915            Some(CollaboratorId::Agent) | None => None,
 4916        };
 4917
 4918        let item_handle = item.to_followable_item_handle(cx)?;
 4919        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4920        let variant = item_handle.to_state_proto(window, cx)?;
 4921
 4922        if item_handle.is_project_item(window, cx)
 4923            && (follower_project_id.is_none()
 4924                || follower_project_id != self.project.read(cx).remote_id())
 4925        {
 4926            return None;
 4927        }
 4928
 4929        Some(proto::View {
 4930            id: id.to_proto(),
 4931            leader_id: leader_peer_id,
 4932            variant: Some(variant),
 4933            panel_id: panel_id.map(|id| id as i32),
 4934        })
 4935    }
 4936
 4937    fn handle_follow(
 4938        &mut self,
 4939        follower_project_id: Option<u64>,
 4940        window: &mut Window,
 4941        cx: &mut Context<Self>,
 4942    ) -> proto::FollowResponse {
 4943        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4944
 4945        cx.notify();
 4946        proto::FollowResponse {
 4947            // TODO: Remove after version 0.145.x stabilizes.
 4948            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4949            views: active_view.iter().cloned().collect(),
 4950            active_view,
 4951        }
 4952    }
 4953
 4954    fn handle_update_followers(
 4955        &mut self,
 4956        leader_id: PeerId,
 4957        message: proto::UpdateFollowers,
 4958        _window: &mut Window,
 4959        _cx: &mut Context<Self>,
 4960    ) {
 4961        self.leader_updates_tx
 4962            .unbounded_send((leader_id, message))
 4963            .ok();
 4964    }
 4965
 4966    async fn process_leader_update(
 4967        this: &WeakEntity<Self>,
 4968        leader_id: PeerId,
 4969        update: proto::UpdateFollowers,
 4970        cx: &mut AsyncWindowContext,
 4971    ) -> Result<()> {
 4972        match update.variant.context("invalid update")? {
 4973            proto::update_followers::Variant::CreateView(view) => {
 4974                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4975                let should_add_view = this.update(cx, |this, _| {
 4976                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4977                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4978                    } else {
 4979                        anyhow::Ok(false)
 4980                    }
 4981                })??;
 4982
 4983                if should_add_view {
 4984                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4985                }
 4986            }
 4987            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4988                let should_add_view = this.update(cx, |this, _| {
 4989                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4990                        state.active_view_id = update_active_view
 4991                            .view
 4992                            .as_ref()
 4993                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4994
 4995                        if state.active_view_id.is_some_and(|view_id| {
 4996                            !state.items_by_leader_view_id.contains_key(&view_id)
 4997                        }) {
 4998                            anyhow::Ok(true)
 4999                        } else {
 5000                            anyhow::Ok(false)
 5001                        }
 5002                    } else {
 5003                        anyhow::Ok(false)
 5004                    }
 5005                })??;
 5006
 5007                if should_add_view && let Some(view) = update_active_view.view {
 5008                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5009                }
 5010            }
 5011            proto::update_followers::Variant::UpdateView(update_view) => {
 5012                let variant = update_view.variant.context("missing update view variant")?;
 5013                let id = update_view.id.context("missing update view id")?;
 5014                let mut tasks = Vec::new();
 5015                this.update_in(cx, |this, window, cx| {
 5016                    let project = this.project.clone();
 5017                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5018                        let view_id = ViewId::from_proto(id.clone())?;
 5019                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5020                            tasks.push(item.view.apply_update_proto(
 5021                                &project,
 5022                                variant.clone(),
 5023                                window,
 5024                                cx,
 5025                            ));
 5026                        }
 5027                    }
 5028                    anyhow::Ok(())
 5029                })??;
 5030                try_join_all(tasks).await.log_err();
 5031            }
 5032        }
 5033        this.update_in(cx, |this, window, cx| {
 5034            this.leader_updated(leader_id, window, cx)
 5035        })?;
 5036        Ok(())
 5037    }
 5038
 5039    async fn add_view_from_leader(
 5040        this: WeakEntity<Self>,
 5041        leader_id: PeerId,
 5042        view: &proto::View,
 5043        cx: &mut AsyncWindowContext,
 5044    ) -> Result<()> {
 5045        let this = this.upgrade().context("workspace dropped")?;
 5046
 5047        let Some(id) = view.id.clone() else {
 5048            anyhow::bail!("no id for view");
 5049        };
 5050        let id = ViewId::from_proto(id)?;
 5051        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5052
 5053        let pane = this.update(cx, |this, _cx| {
 5054            let state = this
 5055                .follower_states
 5056                .get(&leader_id.into())
 5057                .context("stopped following")?;
 5058            anyhow::Ok(state.pane().clone())
 5059        })??;
 5060        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5061            let client = this.read(cx).client().clone();
 5062            pane.items().find_map(|item| {
 5063                let item = item.to_followable_item_handle(cx)?;
 5064                if item.remote_id(&client, window, cx) == Some(id) {
 5065                    Some(item)
 5066                } else {
 5067                    None
 5068                }
 5069            })
 5070        })?;
 5071        let item = if let Some(existing_item) = existing_item {
 5072            existing_item
 5073        } else {
 5074            let variant = view.variant.clone();
 5075            anyhow::ensure!(variant.is_some(), "missing view variant");
 5076
 5077            let task = cx.update(|window, cx| {
 5078                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5079            })?;
 5080
 5081            let Some(task) = task else {
 5082                anyhow::bail!(
 5083                    "failed to construct view from leader (maybe from a different version of zed?)"
 5084                );
 5085            };
 5086
 5087            let mut new_item = task.await?;
 5088            pane.update_in(cx, |pane, window, cx| {
 5089                let mut item_to_remove = None;
 5090                for (ix, item) in pane.items().enumerate() {
 5091                    if let Some(item) = item.to_followable_item_handle(cx) {
 5092                        match new_item.dedup(item.as_ref(), window, cx) {
 5093                            Some(item::Dedup::KeepExisting) => {
 5094                                new_item =
 5095                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5096                                break;
 5097                            }
 5098                            Some(item::Dedup::ReplaceExisting) => {
 5099                                item_to_remove = Some((ix, item.item_id()));
 5100                                break;
 5101                            }
 5102                            None => {}
 5103                        }
 5104                    }
 5105                }
 5106
 5107                if let Some((ix, id)) = item_to_remove {
 5108                    pane.remove_item(id, false, false, window, cx);
 5109                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5110                }
 5111            })?;
 5112
 5113            new_item
 5114        };
 5115
 5116        this.update_in(cx, |this, window, cx| {
 5117            let state = this.follower_states.get_mut(&leader_id.into())?;
 5118            item.set_leader_id(Some(leader_id.into()), window, cx);
 5119            state.items_by_leader_view_id.insert(
 5120                id,
 5121                FollowerView {
 5122                    view: item,
 5123                    location: panel_id,
 5124                },
 5125            );
 5126
 5127            Some(())
 5128        })?;
 5129
 5130        Ok(())
 5131    }
 5132
 5133    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5134        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5135            return;
 5136        };
 5137
 5138        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5139            let buffer_entity_id = agent_location.buffer.entity_id();
 5140            let view_id = ViewId {
 5141                creator: CollaboratorId::Agent,
 5142                id: buffer_entity_id.as_u64(),
 5143            };
 5144            follower_state.active_view_id = Some(view_id);
 5145
 5146            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5147                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5148                hash_map::Entry::Vacant(entry) => {
 5149                    let existing_view =
 5150                        follower_state
 5151                            .center_pane
 5152                            .read(cx)
 5153                            .items()
 5154                            .find_map(|item| {
 5155                                let item = item.to_followable_item_handle(cx)?;
 5156                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5157                                    && item.project_item_model_ids(cx).as_slice()
 5158                                        == [buffer_entity_id]
 5159                                {
 5160                                    Some(item)
 5161                                } else {
 5162                                    None
 5163                                }
 5164                            });
 5165                    let view = existing_view.or_else(|| {
 5166                        agent_location.buffer.upgrade().and_then(|buffer| {
 5167                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5168                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5169                            })?
 5170                            .to_followable_item_handle(cx)
 5171                        })
 5172                    });
 5173
 5174                    view.map(|view| {
 5175                        entry.insert(FollowerView {
 5176                            view,
 5177                            location: None,
 5178                        })
 5179                    })
 5180                }
 5181            };
 5182
 5183            if let Some(item) = item {
 5184                item.view
 5185                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5186                item.view
 5187                    .update_agent_location(agent_location.position, window, cx);
 5188            }
 5189        } else {
 5190            follower_state.active_view_id = None;
 5191        }
 5192
 5193        self.leader_updated(CollaboratorId::Agent, window, cx);
 5194    }
 5195
 5196    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5197        let mut is_project_item = true;
 5198        let mut update = proto::UpdateActiveView::default();
 5199        if window.is_window_active() {
 5200            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5201
 5202            if let Some(item) = active_item
 5203                && item.item_focus_handle(cx).contains_focused(window, cx)
 5204            {
 5205                let leader_id = self
 5206                    .pane_for(&*item)
 5207                    .and_then(|pane| self.leader_for_pane(&pane));
 5208                let leader_peer_id = match leader_id {
 5209                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5210                    Some(CollaboratorId::Agent) | None => None,
 5211                };
 5212
 5213                if let Some(item) = item.to_followable_item_handle(cx) {
 5214                    let id = item
 5215                        .remote_id(&self.app_state.client, window, cx)
 5216                        .map(|id| id.to_proto());
 5217
 5218                    if let Some(id) = id
 5219                        && let Some(variant) = item.to_state_proto(window, cx)
 5220                    {
 5221                        let view = Some(proto::View {
 5222                            id: id.clone(),
 5223                            leader_id: leader_peer_id,
 5224                            variant: Some(variant),
 5225                            panel_id: panel_id.map(|id| id as i32),
 5226                        });
 5227
 5228                        is_project_item = item.is_project_item(window, cx);
 5229                        update = proto::UpdateActiveView {
 5230                            view,
 5231                            // TODO: Remove after version 0.145.x stabilizes.
 5232                            id,
 5233                            leader_id: leader_peer_id,
 5234                        };
 5235                    };
 5236                }
 5237            }
 5238        }
 5239
 5240        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5241        if active_view_id != self.last_active_view_id.as_ref() {
 5242            self.last_active_view_id = active_view_id.cloned();
 5243            self.update_followers(
 5244                is_project_item,
 5245                proto::update_followers::Variant::UpdateActiveView(update),
 5246                window,
 5247                cx,
 5248            );
 5249        }
 5250    }
 5251
 5252    fn active_item_for_followers(
 5253        &self,
 5254        window: &mut Window,
 5255        cx: &mut App,
 5256    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5257        let mut active_item = None;
 5258        let mut panel_id = None;
 5259        for dock in self.all_docks() {
 5260            if dock.focus_handle(cx).contains_focused(window, cx)
 5261                && let Some(panel) = dock.read(cx).active_panel()
 5262                && let Some(pane) = panel.pane(cx)
 5263                && let Some(item) = pane.read(cx).active_item()
 5264            {
 5265                active_item = Some(item);
 5266                panel_id = panel.remote_id();
 5267                break;
 5268            }
 5269        }
 5270
 5271        if active_item.is_none() {
 5272            active_item = self.active_pane().read(cx).active_item();
 5273        }
 5274        (active_item, panel_id)
 5275    }
 5276
 5277    fn update_followers(
 5278        &self,
 5279        project_only: bool,
 5280        update: proto::update_followers::Variant,
 5281        _: &mut Window,
 5282        cx: &mut App,
 5283    ) -> Option<()> {
 5284        // If this update only applies to for followers in the current project,
 5285        // then skip it unless this project is shared. If it applies to all
 5286        // followers, regardless of project, then set `project_id` to none,
 5287        // indicating that it goes to all followers.
 5288        let project_id = if project_only {
 5289            Some(self.project.read(cx).remote_id()?)
 5290        } else {
 5291            None
 5292        };
 5293        self.app_state().workspace_store.update(cx, |store, cx| {
 5294            store.update_followers(project_id, update, cx)
 5295        })
 5296    }
 5297
 5298    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5299        self.follower_states.iter().find_map(|(leader_id, state)| {
 5300            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5301                Some(*leader_id)
 5302            } else {
 5303                None
 5304            }
 5305        })
 5306    }
 5307
 5308    fn leader_updated(
 5309        &mut self,
 5310        leader_id: impl Into<CollaboratorId>,
 5311        window: &mut Window,
 5312        cx: &mut Context<Self>,
 5313    ) -> Option<Box<dyn ItemHandle>> {
 5314        cx.notify();
 5315
 5316        let leader_id = leader_id.into();
 5317        let (panel_id, item) = match leader_id {
 5318            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5319            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5320        };
 5321
 5322        let state = self.follower_states.get(&leader_id)?;
 5323        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5324        let pane;
 5325        if let Some(panel_id) = panel_id {
 5326            pane = self
 5327                .activate_panel_for_proto_id(panel_id, window, cx)?
 5328                .pane(cx)?;
 5329            let state = self.follower_states.get_mut(&leader_id)?;
 5330            state.dock_pane = Some(pane.clone());
 5331        } else {
 5332            pane = state.center_pane.clone();
 5333            let state = self.follower_states.get_mut(&leader_id)?;
 5334            if let Some(dock_pane) = state.dock_pane.take() {
 5335                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5336            }
 5337        }
 5338
 5339        pane.update(cx, |pane, cx| {
 5340            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5341            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5342                pane.activate_item(index, false, false, window, cx);
 5343            } else {
 5344                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5345            }
 5346
 5347            if focus_active_item {
 5348                pane.focus_active_item(window, cx)
 5349            }
 5350        });
 5351
 5352        Some(item)
 5353    }
 5354
 5355    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5356        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5357        let active_view_id = state.active_view_id?;
 5358        Some(
 5359            state
 5360                .items_by_leader_view_id
 5361                .get(&active_view_id)?
 5362                .view
 5363                .boxed_clone(),
 5364        )
 5365    }
 5366
 5367    fn active_item_for_peer(
 5368        &self,
 5369        peer_id: PeerId,
 5370        window: &mut Window,
 5371        cx: &mut Context<Self>,
 5372    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5373        let call = self.active_call()?;
 5374        let room = call.read(cx).room()?.read(cx);
 5375        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5376        let leader_in_this_app;
 5377        let leader_in_this_project;
 5378        match participant.location {
 5379            call::ParticipantLocation::SharedProject { project_id } => {
 5380                leader_in_this_app = true;
 5381                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5382            }
 5383            call::ParticipantLocation::UnsharedProject => {
 5384                leader_in_this_app = true;
 5385                leader_in_this_project = false;
 5386            }
 5387            call::ParticipantLocation::External => {
 5388                leader_in_this_app = false;
 5389                leader_in_this_project = false;
 5390            }
 5391        };
 5392        let state = self.follower_states.get(&peer_id.into())?;
 5393        let mut item_to_activate = None;
 5394        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5395            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5396                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5397            {
 5398                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5399            }
 5400        } else if let Some(shared_screen) =
 5401            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5402        {
 5403            item_to_activate = Some((None, Box::new(shared_screen)));
 5404        }
 5405        item_to_activate
 5406    }
 5407
 5408    fn shared_screen_for_peer(
 5409        &self,
 5410        peer_id: PeerId,
 5411        pane: &Entity<Pane>,
 5412        window: &mut Window,
 5413        cx: &mut App,
 5414    ) -> Option<Entity<SharedScreen>> {
 5415        let call = self.active_call()?;
 5416        let room = call.read(cx).room()?.clone();
 5417        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5418        let track = participant.video_tracks.values().next()?.clone();
 5419        let user = participant.user.clone();
 5420
 5421        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5422            if item.read(cx).peer_id == peer_id {
 5423                return Some(item);
 5424            }
 5425        }
 5426
 5427        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5428    }
 5429
 5430    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5431        if window.is_window_active() {
 5432            self.update_active_view_for_followers(window, cx);
 5433
 5434            if let Some(database_id) = self.database_id {
 5435                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5436                    .detach();
 5437            }
 5438        } else {
 5439            for pane in &self.panes {
 5440                pane.update(cx, |pane, cx| {
 5441                    if let Some(item) = pane.active_item() {
 5442                        item.workspace_deactivated(window, cx);
 5443                    }
 5444                    for item in pane.items() {
 5445                        if matches!(
 5446                            item.workspace_settings(cx).autosave,
 5447                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5448                        ) {
 5449                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5450                                .detach_and_log_err(cx);
 5451                        }
 5452                    }
 5453                });
 5454            }
 5455        }
 5456    }
 5457
 5458    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5459        self.active_call.as_ref().map(|(call, _)| call)
 5460    }
 5461
 5462    fn on_active_call_event(
 5463        &mut self,
 5464        _: &Entity<ActiveCall>,
 5465        event: &call::room::Event,
 5466        window: &mut Window,
 5467        cx: &mut Context<Self>,
 5468    ) {
 5469        match event {
 5470            call::room::Event::ParticipantLocationChanged { participant_id }
 5471            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5472                self.leader_updated(participant_id, window, cx);
 5473            }
 5474            _ => {}
 5475        }
 5476    }
 5477
 5478    pub fn database_id(&self) -> Option<WorkspaceId> {
 5479        self.database_id
 5480    }
 5481
 5482    pub fn session_id(&self) -> Option<String> {
 5483        self.session_id.clone()
 5484    }
 5485
 5486    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5487        let project = self.project().read(cx);
 5488        project
 5489            .visible_worktrees(cx)
 5490            .map(|worktree| worktree.read(cx).abs_path())
 5491            .collect::<Vec<_>>()
 5492    }
 5493
 5494    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5495        match member {
 5496            Member::Axis(PaneAxis { members, .. }) => {
 5497                for child in members.iter() {
 5498                    self.remove_panes(child.clone(), window, cx)
 5499                }
 5500            }
 5501            Member::Pane(pane) => {
 5502                self.force_remove_pane(&pane, &None, window, cx);
 5503            }
 5504        }
 5505    }
 5506
 5507    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5508        self.session_id.take();
 5509        self.serialize_workspace_internal(window, cx)
 5510    }
 5511
 5512    fn force_remove_pane(
 5513        &mut self,
 5514        pane: &Entity<Pane>,
 5515        focus_on: &Option<Entity<Pane>>,
 5516        window: &mut Window,
 5517        cx: &mut Context<Workspace>,
 5518    ) {
 5519        self.panes.retain(|p| p != pane);
 5520        if let Some(focus_on) = focus_on {
 5521            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5522        } else if self.active_pane() == pane {
 5523            self.panes
 5524                .last()
 5525                .unwrap()
 5526                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5527        }
 5528        if self.last_active_center_pane == Some(pane.downgrade()) {
 5529            self.last_active_center_pane = None;
 5530        }
 5531        cx.notify();
 5532    }
 5533
 5534    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5535        if self._schedule_serialize_workspace.is_none() {
 5536            self._schedule_serialize_workspace =
 5537                Some(cx.spawn_in(window, async move |this, cx| {
 5538                    cx.background_executor()
 5539                        .timer(SERIALIZATION_THROTTLE_TIME)
 5540                        .await;
 5541                    this.update_in(cx, |this, window, cx| {
 5542                        this.serialize_workspace_internal(window, cx).detach();
 5543                        this._schedule_serialize_workspace.take();
 5544                    })
 5545                    .log_err();
 5546                }));
 5547        }
 5548    }
 5549
 5550    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5551        let Some(database_id) = self.database_id() else {
 5552            return Task::ready(());
 5553        };
 5554
 5555        fn serialize_pane_handle(
 5556            pane_handle: &Entity<Pane>,
 5557            window: &mut Window,
 5558            cx: &mut App,
 5559        ) -> SerializedPane {
 5560            let (items, active, pinned_count) = {
 5561                let pane = pane_handle.read(cx);
 5562                let active_item_id = pane.active_item().map(|item| item.item_id());
 5563                (
 5564                    pane.items()
 5565                        .filter_map(|handle| {
 5566                            let handle = handle.to_serializable_item_handle(cx)?;
 5567
 5568                            Some(SerializedItem {
 5569                                kind: Arc::from(handle.serialized_item_kind()),
 5570                                item_id: handle.item_id().as_u64(),
 5571                                active: Some(handle.item_id()) == active_item_id,
 5572                                preview: pane.is_active_preview_item(handle.item_id()),
 5573                            })
 5574                        })
 5575                        .collect::<Vec<_>>(),
 5576                    pane.has_focus(window, cx),
 5577                    pane.pinned_count(),
 5578                )
 5579            };
 5580
 5581            SerializedPane::new(items, active, pinned_count)
 5582        }
 5583
 5584        fn build_serialized_pane_group(
 5585            pane_group: &Member,
 5586            window: &mut Window,
 5587            cx: &mut App,
 5588        ) -> SerializedPaneGroup {
 5589            match pane_group {
 5590                Member::Axis(PaneAxis {
 5591                    axis,
 5592                    members,
 5593                    flexes,
 5594                    bounding_boxes: _,
 5595                }) => SerializedPaneGroup::Group {
 5596                    axis: SerializedAxis(*axis),
 5597                    children: members
 5598                        .iter()
 5599                        .map(|member| build_serialized_pane_group(member, window, cx))
 5600                        .collect::<Vec<_>>(),
 5601                    flexes: Some(flexes.lock().clone()),
 5602                },
 5603                Member::Pane(pane_handle) => {
 5604                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5605                }
 5606            }
 5607        }
 5608
 5609        fn build_serialized_docks(
 5610            this: &Workspace,
 5611            window: &mut Window,
 5612            cx: &mut App,
 5613        ) -> DockStructure {
 5614            let left_dock = this.left_dock.read(cx);
 5615            let left_visible = left_dock.is_open();
 5616            let left_active_panel = left_dock
 5617                .active_panel()
 5618                .map(|panel| panel.persistent_name().to_string());
 5619            let left_dock_zoom = left_dock
 5620                .active_panel()
 5621                .map(|panel| panel.is_zoomed(window, cx))
 5622                .unwrap_or(false);
 5623
 5624            let right_dock = this.right_dock.read(cx);
 5625            let right_visible = right_dock.is_open();
 5626            let right_active_panel = right_dock
 5627                .active_panel()
 5628                .map(|panel| panel.persistent_name().to_string());
 5629            let right_dock_zoom = right_dock
 5630                .active_panel()
 5631                .map(|panel| panel.is_zoomed(window, cx))
 5632                .unwrap_or(false);
 5633
 5634            let bottom_dock = this.bottom_dock.read(cx);
 5635            let bottom_visible = bottom_dock.is_open();
 5636            let bottom_active_panel = bottom_dock
 5637                .active_panel()
 5638                .map(|panel| panel.persistent_name().to_string());
 5639            let bottom_dock_zoom = bottom_dock
 5640                .active_panel()
 5641                .map(|panel| panel.is_zoomed(window, cx))
 5642                .unwrap_or(false);
 5643
 5644            DockStructure {
 5645                left: DockData {
 5646                    visible: left_visible,
 5647                    active_panel: left_active_panel,
 5648                    zoom: left_dock_zoom,
 5649                },
 5650                right: DockData {
 5651                    visible: right_visible,
 5652                    active_panel: right_active_panel,
 5653                    zoom: right_dock_zoom,
 5654                },
 5655                bottom: DockData {
 5656                    visible: bottom_visible,
 5657                    active_panel: bottom_active_panel,
 5658                    zoom: bottom_dock_zoom,
 5659                },
 5660            }
 5661        }
 5662
 5663        match self.serialize_workspace_location(cx) {
 5664            WorkspaceLocation::Location(location, paths) => {
 5665                let breakpoints = self.project.update(cx, |project, cx| {
 5666                    project
 5667                        .breakpoint_store()
 5668                        .read(cx)
 5669                        .all_source_breakpoints(cx)
 5670                });
 5671                let user_toolchains = self
 5672                    .project
 5673                    .read(cx)
 5674                    .user_toolchains(cx)
 5675                    .unwrap_or_default();
 5676
 5677                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5678                let docks = build_serialized_docks(self, window, cx);
 5679                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5680
 5681                let serialized_workspace = SerializedWorkspace {
 5682                    id: database_id,
 5683                    location,
 5684                    paths,
 5685                    center_group,
 5686                    window_bounds,
 5687                    display: Default::default(),
 5688                    docks,
 5689                    centered_layout: self.centered_layout,
 5690                    session_id: self.session_id.clone(),
 5691                    breakpoints,
 5692                    window_id: Some(window.window_handle().window_id().as_u64()),
 5693                    user_toolchains,
 5694                };
 5695
 5696                window.spawn(cx, async move |_| {
 5697                    persistence::DB.save_workspace(serialized_workspace).await;
 5698                })
 5699            }
 5700            WorkspaceLocation::DetachFromSession => {
 5701                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5702                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5703                window.spawn(cx, async move |_| {
 5704                    persistence::DB
 5705                        .set_window_open_status(
 5706                            database_id,
 5707                            window_bounds,
 5708                            display.unwrap_or_default(),
 5709                        )
 5710                        .await
 5711                        .log_err();
 5712                    persistence::DB
 5713                        .set_session_id(database_id, None)
 5714                        .await
 5715                        .log_err();
 5716                })
 5717            }
 5718            WorkspaceLocation::None => Task::ready(()),
 5719        }
 5720    }
 5721
 5722    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5723        let paths = PathList::new(&self.root_paths(cx));
 5724        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5725            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5726        } else if self.project.read(cx).is_local() {
 5727            if !paths.is_empty() {
 5728                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5729            } else {
 5730                WorkspaceLocation::DetachFromSession
 5731            }
 5732        } else {
 5733            WorkspaceLocation::None
 5734        }
 5735    }
 5736
 5737    fn update_history(&self, cx: &mut App) {
 5738        let Some(id) = self.database_id() else {
 5739            return;
 5740        };
 5741        if !self.project.read(cx).is_local() {
 5742            return;
 5743        }
 5744        if let Some(manager) = HistoryManager::global(cx) {
 5745            let paths = PathList::new(&self.root_paths(cx));
 5746            manager.update(cx, |this, cx| {
 5747                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5748            });
 5749        }
 5750    }
 5751
 5752    async fn serialize_items(
 5753        this: &WeakEntity<Self>,
 5754        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5755        cx: &mut AsyncWindowContext,
 5756    ) -> Result<()> {
 5757        const CHUNK_SIZE: usize = 200;
 5758
 5759        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5760
 5761        while let Some(items_received) = serializable_items.next().await {
 5762            let unique_items =
 5763                items_received
 5764                    .into_iter()
 5765                    .fold(HashMap::default(), |mut acc, item| {
 5766                        acc.entry(item.item_id()).or_insert(item);
 5767                        acc
 5768                    });
 5769
 5770            // We use into_iter() here so that the references to the items are moved into
 5771            // the tasks and not kept alive while we're sleeping.
 5772            for (_, item) in unique_items.into_iter() {
 5773                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5774                    item.serialize(workspace, false, window, cx)
 5775                }) {
 5776                    cx.background_spawn(async move { task.await.log_err() })
 5777                        .detach();
 5778                }
 5779            }
 5780
 5781            cx.background_executor()
 5782                .timer(SERIALIZATION_THROTTLE_TIME)
 5783                .await;
 5784        }
 5785
 5786        Ok(())
 5787    }
 5788
 5789    pub(crate) fn enqueue_item_serialization(
 5790        &mut self,
 5791        item: Box<dyn SerializableItemHandle>,
 5792    ) -> Result<()> {
 5793        self.serializable_items_tx
 5794            .unbounded_send(item)
 5795            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5796    }
 5797
 5798    pub(crate) fn load_workspace(
 5799        serialized_workspace: SerializedWorkspace,
 5800        paths_to_open: Vec<Option<ProjectPath>>,
 5801        window: &mut Window,
 5802        cx: &mut Context<Workspace>,
 5803    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5804        cx.spawn_in(window, async move |workspace, cx| {
 5805            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5806
 5807            let mut center_group = None;
 5808            let mut center_items = None;
 5809
 5810            // Traverse the splits tree and add to things
 5811            if let Some((group, active_pane, items)) = serialized_workspace
 5812                .center_group
 5813                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5814                .await
 5815            {
 5816                center_items = Some(items);
 5817                center_group = Some((group, active_pane))
 5818            }
 5819
 5820            let mut items_by_project_path = HashMap::default();
 5821            let mut item_ids_by_kind = HashMap::default();
 5822            let mut all_deserialized_items = Vec::default();
 5823            cx.update(|_, cx| {
 5824                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5825                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5826                        item_ids_by_kind
 5827                            .entry(serializable_item_handle.serialized_item_kind())
 5828                            .or_insert(Vec::new())
 5829                            .push(item.item_id().as_u64() as ItemId);
 5830                    }
 5831
 5832                    if let Some(project_path) = item.project_path(cx) {
 5833                        items_by_project_path.insert(project_path, item.clone());
 5834                    }
 5835                    all_deserialized_items.push(item);
 5836                }
 5837            })?;
 5838
 5839            let opened_items = paths_to_open
 5840                .into_iter()
 5841                .map(|path_to_open| {
 5842                    path_to_open
 5843                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5844                })
 5845                .collect::<Vec<_>>();
 5846
 5847            // Remove old panes from workspace panes list
 5848            workspace.update_in(cx, |workspace, window, cx| {
 5849                if let Some((center_group, active_pane)) = center_group {
 5850                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5851
 5852                    // Swap workspace center group
 5853                    workspace.center = PaneGroup::with_root(center_group);
 5854                    workspace.center.set_is_center(true);
 5855                    workspace.center.mark_positions(cx);
 5856
 5857                    if let Some(active_pane) = active_pane {
 5858                        workspace.set_active_pane(&active_pane, window, cx);
 5859                        cx.focus_self(window);
 5860                    } else {
 5861                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5862                    }
 5863                }
 5864
 5865                let docks = serialized_workspace.docks;
 5866
 5867                for (dock, serialized_dock) in [
 5868                    (&mut workspace.right_dock, docks.right),
 5869                    (&mut workspace.left_dock, docks.left),
 5870                    (&mut workspace.bottom_dock, docks.bottom),
 5871                ]
 5872                .iter_mut()
 5873                {
 5874                    dock.update(cx, |dock, cx| {
 5875                        dock.serialized_dock = Some(serialized_dock.clone());
 5876                        dock.restore_state(window, cx);
 5877                    });
 5878                }
 5879
 5880                cx.notify();
 5881            })?;
 5882
 5883            let _ = project
 5884                .update(cx, |project, cx| {
 5885                    project
 5886                        .breakpoint_store()
 5887                        .update(cx, |breakpoint_store, cx| {
 5888                            breakpoint_store
 5889                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5890                        })
 5891                })?
 5892                .await;
 5893
 5894            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5895            // after loading the items, we might have different items and in order to avoid
 5896            // the database filling up, we delete items that haven't been loaded now.
 5897            //
 5898            // The items that have been loaded, have been saved after they've been added to the workspace.
 5899            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5900                item_ids_by_kind
 5901                    .into_iter()
 5902                    .map(|(item_kind, loaded_items)| {
 5903                        SerializableItemRegistry::cleanup(
 5904                            item_kind,
 5905                            serialized_workspace.id,
 5906                            loaded_items,
 5907                            window,
 5908                            cx,
 5909                        )
 5910                        .log_err()
 5911                    })
 5912                    .collect::<Vec<_>>()
 5913            })?;
 5914
 5915            futures::future::join_all(clean_up_tasks).await;
 5916
 5917            workspace
 5918                .update_in(cx, |workspace, window, cx| {
 5919                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5920                    workspace.serialize_workspace_internal(window, cx).detach();
 5921
 5922                    // Ensure that we mark the window as edited if we did load dirty items
 5923                    workspace.update_window_edited(window, cx);
 5924                })
 5925                .ok();
 5926
 5927            Ok(opened_items)
 5928        })
 5929    }
 5930
 5931    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5932        self.add_workspace_actions_listeners(div, window, cx)
 5933            .on_action(cx.listener(
 5934                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5935                    for action in &action_sequence.0 {
 5936                        window.dispatch_action(action.boxed_clone(), cx);
 5937                    }
 5938                },
 5939            ))
 5940            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5941            .on_action(cx.listener(Self::close_all_items_and_panes))
 5942            .on_action(cx.listener(Self::save_all))
 5943            .on_action(cx.listener(Self::send_keystrokes))
 5944            .on_action(cx.listener(Self::add_folder_to_project))
 5945            .on_action(cx.listener(Self::follow_next_collaborator))
 5946            .on_action(cx.listener(Self::close_window))
 5947            .on_action(cx.listener(Self::activate_pane_at_index))
 5948            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5949            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5950            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5951            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5952                let pane = workspace.active_pane().clone();
 5953                workspace.unfollow_in_pane(&pane, window, cx);
 5954            }))
 5955            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5956                workspace
 5957                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5958                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5959            }))
 5960            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5961                workspace
 5962                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5963                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5964            }))
 5965            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5966                workspace
 5967                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5968                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5969            }))
 5970            .on_action(
 5971                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5972                    workspace.activate_previous_pane(window, cx)
 5973                }),
 5974            )
 5975            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5976                workspace.activate_next_pane(window, cx)
 5977            }))
 5978            .on_action(
 5979                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5980                    workspace.activate_next_window(cx)
 5981                }),
 5982            )
 5983            .on_action(
 5984                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5985                    workspace.activate_previous_window(cx)
 5986                }),
 5987            )
 5988            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5989                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5990            }))
 5991            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5992                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5993            }))
 5994            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5995                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5996            }))
 5997            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5998                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5999            }))
 6000            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6001                workspace.activate_next_pane(window, cx)
 6002            }))
 6003            .on_action(cx.listener(
 6004                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6005                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6006                },
 6007            ))
 6008            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6009                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6010            }))
 6011            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6012                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6013            }))
 6014            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6015                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6016            }))
 6017            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6018                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6019            }))
 6020            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6021                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6022                    SplitDirection::Down,
 6023                    SplitDirection::Up,
 6024                    SplitDirection::Right,
 6025                    SplitDirection::Left,
 6026                ];
 6027                for dir in DIRECTION_PRIORITY {
 6028                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6029                        workspace.swap_pane_in_direction(dir, cx);
 6030                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6031                        break;
 6032                    }
 6033                }
 6034            }))
 6035            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6036                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6037            }))
 6038            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6039                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6040            }))
 6041            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6042                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6043            }))
 6044            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6045                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6046            }))
 6047            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6048                this.toggle_dock(DockPosition::Left, window, cx);
 6049            }))
 6050            .on_action(cx.listener(
 6051                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6052                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6053                },
 6054            ))
 6055            .on_action(cx.listener(
 6056                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6057                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6058                },
 6059            ))
 6060            .on_action(cx.listener(
 6061                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6062                    if !workspace.close_active_dock(window, cx) {
 6063                        cx.propagate();
 6064                    }
 6065                },
 6066            ))
 6067            .on_action(
 6068                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6069                    workspace.close_all_docks(window, cx);
 6070                }),
 6071            )
 6072            .on_action(cx.listener(Self::toggle_all_docks))
 6073            .on_action(cx.listener(
 6074                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6075                    workspace.clear_all_notifications(cx);
 6076                },
 6077            ))
 6078            .on_action(cx.listener(
 6079                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6080                    workspace.clear_navigation_history(window, cx);
 6081                },
 6082            ))
 6083            .on_action(cx.listener(
 6084                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6085                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6086                        workspace.suppress_notification(&notification_id, cx);
 6087                    }
 6088                },
 6089            ))
 6090            .on_action(cx.listener(
 6091                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6092                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6093                },
 6094            ))
 6095            .on_action(
 6096                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6097                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6098                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6099                            trusted_worktrees.clear_trusted_paths()
 6100                        });
 6101                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6102                        cx.spawn(async move |_, cx| {
 6103                            if clear_task.await.log_err().is_some() {
 6104                                cx.update(|cx| reload(cx)).ok();
 6105                            }
 6106                        })
 6107                        .detach();
 6108                    }
 6109                }),
 6110            )
 6111            .on_action(cx.listener(
 6112                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6113                    workspace.reopen_closed_item(window, cx).detach();
 6114                },
 6115            ))
 6116            .on_action(cx.listener(
 6117                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6118                    for dock in workspace.all_docks() {
 6119                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6120                            let Some(panel) = dock.read(cx).active_panel() else {
 6121                                return;
 6122                            };
 6123
 6124                            // Set to `None`, then the size will fall back to the default.
 6125                            panel.clone().set_size(None, window, cx);
 6126
 6127                            return;
 6128                        }
 6129                    }
 6130                },
 6131            ))
 6132            .on_action(cx.listener(
 6133                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6134                    for dock in workspace.all_docks() {
 6135                        if let Some(panel) = dock.read(cx).visible_panel() {
 6136                            // Set to `None`, then the size will fall back to the default.
 6137                            panel.clone().set_size(None, window, cx);
 6138                        }
 6139                    }
 6140                },
 6141            ))
 6142            .on_action(cx.listener(
 6143                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6144                    adjust_active_dock_size_by_px(
 6145                        px_with_ui_font_fallback(act.px, cx),
 6146                        workspace,
 6147                        window,
 6148                        cx,
 6149                    );
 6150                },
 6151            ))
 6152            .on_action(cx.listener(
 6153                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6154                    adjust_active_dock_size_by_px(
 6155                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6156                        workspace,
 6157                        window,
 6158                        cx,
 6159                    );
 6160                },
 6161            ))
 6162            .on_action(cx.listener(
 6163                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6164                    adjust_open_docks_size_by_px(
 6165                        px_with_ui_font_fallback(act.px, cx),
 6166                        workspace,
 6167                        window,
 6168                        cx,
 6169                    );
 6170                },
 6171            ))
 6172            .on_action(cx.listener(
 6173                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6174                    adjust_open_docks_size_by_px(
 6175                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6176                        workspace,
 6177                        window,
 6178                        cx,
 6179                    );
 6180                },
 6181            ))
 6182            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6183            .on_action(cx.listener(
 6184                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6185                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6186                        let dock = active_dock.read(cx);
 6187                        if let Some(active_panel) = dock.active_panel() {
 6188                            if active_panel.pane(cx).is_none() {
 6189                                let mut recent_pane: Option<Entity<Pane>> = None;
 6190                                let mut recent_timestamp = 0;
 6191                                for pane_handle in workspace.panes() {
 6192                                    let pane = pane_handle.read(cx);
 6193                                    for entry in pane.activation_history() {
 6194                                        if entry.timestamp > recent_timestamp {
 6195                                            recent_timestamp = entry.timestamp;
 6196                                            recent_pane = Some(pane_handle.clone());
 6197                                        }
 6198                                    }
 6199                                }
 6200
 6201                                if let Some(pane) = recent_pane {
 6202                                    pane.update(cx, |pane, cx| {
 6203                                        let current_index = pane.active_item_index();
 6204                                        let items_len = pane.items_len();
 6205                                        if items_len > 0 {
 6206                                            let next_index = if current_index + 1 < items_len {
 6207                                                current_index + 1
 6208                                            } else {
 6209                                                0
 6210                                            };
 6211                                            pane.activate_item(
 6212                                                next_index, false, false, window, cx,
 6213                                            );
 6214                                        }
 6215                                    });
 6216                                    return;
 6217                                }
 6218                            }
 6219                        }
 6220                    }
 6221                    cx.propagate();
 6222                },
 6223            ))
 6224            .on_action(cx.listener(
 6225                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6226                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6227                        let dock = active_dock.read(cx);
 6228                        if let Some(active_panel) = dock.active_panel() {
 6229                            if active_panel.pane(cx).is_none() {
 6230                                let mut recent_pane: Option<Entity<Pane>> = None;
 6231                                let mut recent_timestamp = 0;
 6232                                for pane_handle in workspace.panes() {
 6233                                    let pane = pane_handle.read(cx);
 6234                                    for entry in pane.activation_history() {
 6235                                        if entry.timestamp > recent_timestamp {
 6236                                            recent_timestamp = entry.timestamp;
 6237                                            recent_pane = Some(pane_handle.clone());
 6238                                        }
 6239                                    }
 6240                                }
 6241
 6242                                if let Some(pane) = recent_pane {
 6243                                    pane.update(cx, |pane, cx| {
 6244                                        let current_index = pane.active_item_index();
 6245                                        let items_len = pane.items_len();
 6246                                        if items_len > 0 {
 6247                                            let prev_index = if current_index > 0 {
 6248                                                current_index - 1
 6249                                            } else {
 6250                                                items_len.saturating_sub(1)
 6251                                            };
 6252                                            pane.activate_item(
 6253                                                prev_index, false, false, window, cx,
 6254                                            );
 6255                                        }
 6256                                    });
 6257                                    return;
 6258                                }
 6259                            }
 6260                        }
 6261                    }
 6262                    cx.propagate();
 6263                },
 6264            ))
 6265            .on_action(cx.listener(Workspace::cancel))
 6266    }
 6267
 6268    #[cfg(any(test, feature = "test-support"))]
 6269    pub fn set_random_database_id(&mut self) {
 6270        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6271    }
 6272
 6273    #[cfg(any(test, feature = "test-support"))]
 6274    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6275        use node_runtime::NodeRuntime;
 6276        use session::Session;
 6277
 6278        let client = project.read(cx).client();
 6279        let user_store = project.read(cx).user_store();
 6280        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6281        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6282        window.activate_window();
 6283        let app_state = Arc::new(AppState {
 6284            languages: project.read(cx).languages().clone(),
 6285            workspace_store,
 6286            client,
 6287            user_store,
 6288            fs: project.read(cx).fs().clone(),
 6289            build_window_options: |_, _| Default::default(),
 6290            node_runtime: NodeRuntime::unavailable(),
 6291            session,
 6292        });
 6293        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6294        workspace
 6295            .active_pane
 6296            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6297        workspace
 6298    }
 6299
 6300    pub fn register_action<A: Action>(
 6301        &mut self,
 6302        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6303    ) -> &mut Self {
 6304        let callback = Arc::new(callback);
 6305
 6306        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6307            let callback = callback.clone();
 6308            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6309                (callback)(workspace, event, window, cx)
 6310            }))
 6311        }));
 6312        self
 6313    }
 6314    pub fn register_action_renderer(
 6315        &mut self,
 6316        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6317    ) -> &mut Self {
 6318        self.workspace_actions.push(Box::new(callback));
 6319        self
 6320    }
 6321
 6322    fn add_workspace_actions_listeners(
 6323        &self,
 6324        mut div: Div,
 6325        window: &mut Window,
 6326        cx: &mut Context<Self>,
 6327    ) -> Div {
 6328        for action in self.workspace_actions.iter() {
 6329            div = (action)(div, self, window, cx)
 6330        }
 6331        div
 6332    }
 6333
 6334    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6335        self.modal_layer.read(cx).has_active_modal()
 6336    }
 6337
 6338    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6339        self.modal_layer.read(cx).active_modal()
 6340    }
 6341
 6342    pub fn is_modal_open<V: 'static>(&self, cx: &App) -> bool {
 6343        self.modal_layer.read(cx).active_modal::<V>().is_some()
 6344    }
 6345
 6346    pub fn set_next_modal_placement(&mut self, placement: ModalPlacement) {
 6347        self.next_modal_placement = Some(placement);
 6348    }
 6349
 6350    fn take_next_modal_placement(&mut self) -> ModalPlacement {
 6351        self.next_modal_placement.take().unwrap_or_default()
 6352    }
 6353
 6354    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6355    where
 6356        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6357    {
 6358        let placement = self.take_next_modal_placement();
 6359        self.modal_layer.update(cx, |modal_layer, cx| {
 6360            modal_layer.toggle_modal_with_placement(window, cx, placement, build)
 6361        })
 6362    }
 6363
 6364    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6365        self.modal_layer
 6366            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6367    }
 6368
 6369    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6370        self.toast_layer
 6371            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6372    }
 6373
 6374    pub fn toggle_centered_layout(
 6375        &mut self,
 6376        _: &ToggleCenteredLayout,
 6377        _: &mut Window,
 6378        cx: &mut Context<Self>,
 6379    ) {
 6380        self.centered_layout = !self.centered_layout;
 6381        if let Some(database_id) = self.database_id() {
 6382            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6383                .detach_and_log_err(cx);
 6384        }
 6385        cx.notify();
 6386    }
 6387
 6388    fn adjust_padding(padding: Option<f32>) -> f32 {
 6389        padding
 6390            .unwrap_or(CenteredPaddingSettings::default().0)
 6391            .clamp(
 6392                CenteredPaddingSettings::MIN_PADDING,
 6393                CenteredPaddingSettings::MAX_PADDING,
 6394            )
 6395    }
 6396
 6397    fn render_dock(
 6398        &self,
 6399        position: DockPosition,
 6400        dock: &Entity<Dock>,
 6401        window: &mut Window,
 6402        cx: &mut App,
 6403    ) -> Option<Div> {
 6404        if self.zoomed_position == Some(position) {
 6405            return None;
 6406        }
 6407
 6408        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6409            let pane = panel.pane(cx)?;
 6410            let follower_states = &self.follower_states;
 6411            leader_border_for_pane(follower_states, &pane, window, cx)
 6412        });
 6413
 6414        Some(
 6415            div()
 6416                .flex()
 6417                .flex_none()
 6418                .overflow_hidden()
 6419                .child(dock.clone())
 6420                .children(leader_border),
 6421        )
 6422    }
 6423
 6424    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6425        window.root().flatten()
 6426    }
 6427
 6428    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6429        self.zoomed.as_ref()
 6430    }
 6431
 6432    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6433        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6434            return;
 6435        };
 6436        let windows = cx.windows();
 6437        let next_window =
 6438            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6439                || {
 6440                    windows
 6441                        .iter()
 6442                        .cycle()
 6443                        .skip_while(|window| window.window_id() != current_window_id)
 6444                        .nth(1)
 6445                },
 6446            );
 6447
 6448        if let Some(window) = next_window {
 6449            window
 6450                .update(cx, |_, window, _| window.activate_window())
 6451                .ok();
 6452        }
 6453    }
 6454
 6455    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6456        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6457            return;
 6458        };
 6459        let windows = cx.windows();
 6460        let prev_window =
 6461            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6462                || {
 6463                    windows
 6464                        .iter()
 6465                        .rev()
 6466                        .cycle()
 6467                        .skip_while(|window| window.window_id() != current_window_id)
 6468                        .nth(1)
 6469                },
 6470            );
 6471
 6472        if let Some(window) = prev_window {
 6473            window
 6474                .update(cx, |_, window, _| window.activate_window())
 6475                .ok();
 6476        }
 6477    }
 6478
 6479    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6480        if cx.stop_active_drag(window) {
 6481        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6482            dismiss_app_notification(&notification_id, cx);
 6483        } else {
 6484            cx.propagate();
 6485        }
 6486    }
 6487
 6488    fn adjust_dock_size_by_px(
 6489        &mut self,
 6490        panel_size: Pixels,
 6491        dock_pos: DockPosition,
 6492        px: Pixels,
 6493        window: &mut Window,
 6494        cx: &mut Context<Self>,
 6495    ) {
 6496        match dock_pos {
 6497            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6498            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6499            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6500        }
 6501    }
 6502
 6503    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6504        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6505
 6506        self.left_dock.update(cx, |left_dock, cx| {
 6507            if WorkspaceSettings::get_global(cx)
 6508                .resize_all_panels_in_dock
 6509                .contains(&DockPosition::Left)
 6510            {
 6511                left_dock.resize_all_panels(Some(size), window, cx);
 6512            } else {
 6513                left_dock.resize_active_panel(Some(size), window, cx);
 6514            }
 6515        });
 6516        self.clamp_utility_pane_widths(window, cx);
 6517    }
 6518
 6519    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6520        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6521        self.left_dock.read_with(cx, |left_dock, cx| {
 6522            let left_dock_size = left_dock
 6523                .active_panel_size(window, cx)
 6524                .unwrap_or(Pixels::ZERO);
 6525            if left_dock_size + size > self.bounds.right() {
 6526                size = self.bounds.right() - left_dock_size
 6527            }
 6528        });
 6529        self.right_dock.update(cx, |right_dock, cx| {
 6530            if WorkspaceSettings::get_global(cx)
 6531                .resize_all_panels_in_dock
 6532                .contains(&DockPosition::Right)
 6533            {
 6534                right_dock.resize_all_panels(Some(size), window, cx);
 6535            } else {
 6536                right_dock.resize_active_panel(Some(size), window, cx);
 6537            }
 6538        });
 6539        self.clamp_utility_pane_widths(window, cx);
 6540    }
 6541
 6542    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6543        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6544        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6545            if WorkspaceSettings::get_global(cx)
 6546                .resize_all_panels_in_dock
 6547                .contains(&DockPosition::Bottom)
 6548            {
 6549                bottom_dock.resize_all_panels(Some(size), window, cx);
 6550            } else {
 6551                bottom_dock.resize_active_panel(Some(size), window, cx);
 6552            }
 6553        });
 6554        self.clamp_utility_pane_widths(window, cx);
 6555    }
 6556
 6557    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6558        let left_dock_width = self
 6559            .left_dock
 6560            .read(cx)
 6561            .active_panel_size(window, cx)
 6562            .unwrap_or(px(0.0));
 6563        let right_dock_width = self
 6564            .right_dock
 6565            .read(cx)
 6566            .active_panel_size(window, cx)
 6567            .unwrap_or(px(0.0));
 6568        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6569        center_pane_width - px(10.0)
 6570    }
 6571
 6572    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6573        let max_width = self.max_utility_pane_width(window, cx);
 6574
 6575        // Clamp left slot utility pane if it exists
 6576        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6577            let current_width = handle.width(cx);
 6578            if current_width > max_width {
 6579                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6580            }
 6581        }
 6582
 6583        // Clamp right slot utility pane if it exists
 6584        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6585            let current_width = handle.width(cx);
 6586            if current_width > max_width {
 6587                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6588            }
 6589        }
 6590    }
 6591
 6592    fn toggle_edit_predictions_all_files(
 6593        &mut self,
 6594        _: &ToggleEditPrediction,
 6595        _window: &mut Window,
 6596        cx: &mut Context<Self>,
 6597    ) {
 6598        let fs = self.project().read(cx).fs().clone();
 6599        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6600        update_settings_file(fs, cx, move |file, _| {
 6601            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6602        });
 6603    }
 6604
 6605    pub fn show_worktree_trust_security_modal(
 6606        &mut self,
 6607        toggle: bool,
 6608        window: &mut Window,
 6609        cx: &mut Context<Self>,
 6610    ) {
 6611        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6612            if toggle {
 6613                security_modal.update(cx, |security_modal, cx| {
 6614                    security_modal.dismiss(cx);
 6615                })
 6616            } else {
 6617                security_modal.update(cx, |security_modal, cx| {
 6618                    security_modal.refresh_restricted_paths(cx);
 6619                });
 6620            }
 6621        } else {
 6622            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6623                .map(|trusted_worktrees| {
 6624                    trusted_worktrees
 6625                        .read(cx)
 6626                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6627                })
 6628                .unwrap_or(false);
 6629            if has_restricted_worktrees {
 6630                let project = self.project().read(cx);
 6631                let remote_host = project
 6632                    .remote_connection_options(cx)
 6633                    .map(RemoteHostLocation::from);
 6634                let worktree_store = project.worktree_store().downgrade();
 6635                self.toggle_modal(window, cx, |_, cx| {
 6636                    SecurityModal::new(worktree_store, remote_host, cx)
 6637                });
 6638            }
 6639        }
 6640    }
 6641
 6642    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6643        self.update_window_title(window, cx);
 6644        self.serialize_workspace(window, cx);
 6645        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6646        self.update_history(cx);
 6647    }
 6648}
 6649
 6650fn leader_border_for_pane(
 6651    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6652    pane: &Entity<Pane>,
 6653    _: &Window,
 6654    cx: &App,
 6655) -> Option<Div> {
 6656    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6657        if state.pane() == pane {
 6658            Some((*leader_id, state))
 6659        } else {
 6660            None
 6661        }
 6662    })?;
 6663
 6664    let mut leader_color = match leader_id {
 6665        CollaboratorId::PeerId(leader_peer_id) => {
 6666            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6667            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6668
 6669            cx.theme()
 6670                .players()
 6671                .color_for_participant(leader.participant_index.0)
 6672                .cursor
 6673        }
 6674        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6675    };
 6676    leader_color.fade_out(0.3);
 6677    Some(
 6678        div()
 6679            .absolute()
 6680            .size_full()
 6681            .left_0()
 6682            .top_0()
 6683            .border_2()
 6684            .border_color(leader_color),
 6685    )
 6686}
 6687
 6688fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6689    ZED_WINDOW_POSITION
 6690        .zip(*ZED_WINDOW_SIZE)
 6691        .map(|(position, size)| Bounds {
 6692            origin: position,
 6693            size,
 6694        })
 6695}
 6696
 6697fn open_items(
 6698    serialized_workspace: Option<SerializedWorkspace>,
 6699    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6700    window: &mut Window,
 6701    cx: &mut Context<Workspace>,
 6702) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6703    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6704        Workspace::load_workspace(
 6705            serialized_workspace,
 6706            project_paths_to_open
 6707                .iter()
 6708                .map(|(_, project_path)| project_path)
 6709                .cloned()
 6710                .collect(),
 6711            window,
 6712            cx,
 6713        )
 6714    });
 6715
 6716    cx.spawn_in(window, async move |workspace, cx| {
 6717        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6718
 6719        if let Some(restored_items) = restored_items {
 6720            let restored_items = restored_items.await?;
 6721
 6722            let restored_project_paths = restored_items
 6723                .iter()
 6724                .filter_map(|item| {
 6725                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6726                        .ok()
 6727                        .flatten()
 6728                })
 6729                .collect::<HashSet<_>>();
 6730
 6731            for restored_item in restored_items {
 6732                opened_items.push(restored_item.map(Ok));
 6733            }
 6734
 6735            project_paths_to_open
 6736                .iter_mut()
 6737                .for_each(|(_, project_path)| {
 6738                    if let Some(project_path_to_open) = project_path
 6739                        && restored_project_paths.contains(project_path_to_open)
 6740                    {
 6741                        *project_path = None;
 6742                    }
 6743                });
 6744        } else {
 6745            for _ in 0..project_paths_to_open.len() {
 6746                opened_items.push(None);
 6747            }
 6748        }
 6749        assert!(opened_items.len() == project_paths_to_open.len());
 6750
 6751        let tasks =
 6752            project_paths_to_open
 6753                .into_iter()
 6754                .enumerate()
 6755                .map(|(ix, (abs_path, project_path))| {
 6756                    let workspace = workspace.clone();
 6757                    cx.spawn(async move |cx| {
 6758                        let file_project_path = project_path?;
 6759                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6760                            workspace.project().update(cx, |project, cx| {
 6761                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6762                            })
 6763                        });
 6764
 6765                        // We only want to open file paths here. If one of the items
 6766                        // here is a directory, it was already opened further above
 6767                        // with a `find_or_create_worktree`.
 6768                        if let Ok(task) = abs_path_task
 6769                            && task.await.is_none_or(|p| p.is_file())
 6770                        {
 6771                            return Some((
 6772                                ix,
 6773                                workspace
 6774                                    .update_in(cx, |workspace, window, cx| {
 6775                                        workspace.open_path(
 6776                                            file_project_path,
 6777                                            None,
 6778                                            true,
 6779                                            window,
 6780                                            cx,
 6781                                        )
 6782                                    })
 6783                                    .log_err()?
 6784                                    .await,
 6785                            ));
 6786                        }
 6787                        None
 6788                    })
 6789                });
 6790
 6791        let tasks = tasks.collect::<Vec<_>>();
 6792
 6793        let tasks = futures::future::join_all(tasks);
 6794        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6795            opened_items[ix] = Some(path_open_result);
 6796        }
 6797
 6798        Ok(opened_items)
 6799    })
 6800}
 6801
 6802enum ActivateInDirectionTarget {
 6803    Pane(Entity<Pane>),
 6804    Dock(Entity<Dock>),
 6805}
 6806
 6807fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6808    workspace
 6809        .update(cx, |workspace, _, cx| {
 6810            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6811                struct DatabaseFailedNotification;
 6812
 6813                workspace.show_notification(
 6814                    NotificationId::unique::<DatabaseFailedNotification>(),
 6815                    cx,
 6816                    |cx| {
 6817                        cx.new(|cx| {
 6818                            MessageNotification::new("Failed to load the database file.", cx)
 6819                                .primary_message("File an Issue")
 6820                                .primary_icon(IconName::Plus)
 6821                                .primary_on_click(|window, cx| {
 6822                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6823                                })
 6824                        })
 6825                    },
 6826                );
 6827            }
 6828        })
 6829        .log_err();
 6830}
 6831
 6832fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6833    if val == 0 {
 6834        ThemeSettings::get_global(cx).ui_font_size(cx)
 6835    } else {
 6836        px(val as f32)
 6837    }
 6838}
 6839
 6840fn adjust_active_dock_size_by_px(
 6841    px: Pixels,
 6842    workspace: &mut Workspace,
 6843    window: &mut Window,
 6844    cx: &mut Context<Workspace>,
 6845) {
 6846    let Some(active_dock) = workspace
 6847        .all_docks()
 6848        .into_iter()
 6849        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6850    else {
 6851        return;
 6852    };
 6853    let dock = active_dock.read(cx);
 6854    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6855        return;
 6856    };
 6857    let dock_pos = dock.position();
 6858    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6859}
 6860
 6861fn adjust_open_docks_size_by_px(
 6862    px: Pixels,
 6863    workspace: &mut Workspace,
 6864    window: &mut Window,
 6865    cx: &mut Context<Workspace>,
 6866) {
 6867    let docks = workspace
 6868        .all_docks()
 6869        .into_iter()
 6870        .filter_map(|dock| {
 6871            if dock.read(cx).is_open() {
 6872                let dock = dock.read(cx);
 6873                let panel_size = dock.active_panel_size(window, cx)?;
 6874                let dock_pos = dock.position();
 6875                Some((panel_size, dock_pos, px))
 6876            } else {
 6877                None
 6878            }
 6879        })
 6880        .collect::<Vec<_>>();
 6881
 6882    docks
 6883        .into_iter()
 6884        .for_each(|(panel_size, dock_pos, offset)| {
 6885            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6886        });
 6887}
 6888
 6889impl Focusable for Workspace {
 6890    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6891        self.active_pane.focus_handle(cx)
 6892    }
 6893}
 6894
 6895#[derive(Clone)]
 6896struct DraggedDock(DockPosition);
 6897
 6898impl Render for DraggedDock {
 6899    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6900        gpui::Empty
 6901    }
 6902}
 6903
 6904impl Render for Workspace {
 6905    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6906        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6907        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6908            log::info!("Rendered first frame");
 6909        }
 6910        let mut context = KeyContext::new_with_defaults();
 6911        context.add("Workspace");
 6912        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6913        if let Some(status) = self
 6914            .debugger_provider
 6915            .as_ref()
 6916            .and_then(|provider| provider.active_thread_state(cx))
 6917        {
 6918            match status {
 6919                ThreadStatus::Running | ThreadStatus::Stepping => {
 6920                    context.add("debugger_running");
 6921                }
 6922                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6923                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6924            }
 6925        }
 6926
 6927        if self.left_dock.read(cx).is_open() {
 6928            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6929                context.set("left_dock", active_panel.panel_key());
 6930            }
 6931        }
 6932
 6933        if self.right_dock.read(cx).is_open() {
 6934            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6935                context.set("right_dock", active_panel.panel_key());
 6936            }
 6937        }
 6938
 6939        if self.bottom_dock.read(cx).is_open() {
 6940            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6941                context.set("bottom_dock", active_panel.panel_key());
 6942            }
 6943        }
 6944
 6945        let centered_layout = self.centered_layout
 6946            && self.center.panes().len() == 1
 6947            && self.active_item(cx).is_some();
 6948        let render_padding = |size| {
 6949            (size > 0.0).then(|| {
 6950                div()
 6951                    .h_full()
 6952                    .w(relative(size))
 6953                    .bg(cx.theme().colors().editor_background)
 6954                    .border_color(cx.theme().colors().pane_group_border)
 6955            })
 6956        };
 6957        let paddings = if centered_layout {
 6958            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6959            (
 6960                render_padding(Self::adjust_padding(
 6961                    settings.left_padding.map(|padding| padding.0),
 6962                )),
 6963                render_padding(Self::adjust_padding(
 6964                    settings.right_padding.map(|padding| padding.0),
 6965                )),
 6966            )
 6967        } else {
 6968            (None, None)
 6969        };
 6970        let ui_font = theme::setup_ui_font(window, cx);
 6971
 6972        let theme = cx.theme().clone();
 6973        let colors = theme.colors();
 6974        let notification_entities = self
 6975            .notifications
 6976            .iter()
 6977            .map(|(_, notification)| notification.entity_id())
 6978            .collect::<Vec<_>>();
 6979        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6980
 6981        client_side_decorations(
 6982            self.actions(div(), window, cx)
 6983                .key_context(context)
 6984                .relative()
 6985                .size_full()
 6986                .flex()
 6987                .flex_col()
 6988                .font(ui_font)
 6989                .gap_0()
 6990                .justify_start()
 6991                .items_start()
 6992                .text_color(colors.text)
 6993                .overflow_hidden()
 6994                .children(self.titlebar_item.clone())
 6995                .on_modifiers_changed(move |_, _, cx| {
 6996                    for &id in &notification_entities {
 6997                        cx.notify(id);
 6998                    }
 6999                })
 7000                .child(
 7001                    div()
 7002                        .size_full()
 7003                        .relative()
 7004                        .flex_1()
 7005                        .flex()
 7006                        .flex_col()
 7007                        .child(
 7008                            div()
 7009                                .id("workspace")
 7010                                .bg(colors.background)
 7011                                .relative()
 7012                                .flex_1()
 7013                                .w_full()
 7014                                .flex()
 7015                                .flex_col()
 7016                                .overflow_hidden()
 7017                                .border_t_1()
 7018                                .border_b_1()
 7019                                .border_color(colors.border)
 7020                                .child({
 7021                                    let this = cx.entity();
 7022                                    canvas(
 7023                                        move |bounds, window, cx| {
 7024                                            this.update(cx, |this, cx| {
 7025                                                let bounds_changed = this.bounds != bounds;
 7026                                                this.bounds = bounds;
 7027
 7028                                                if bounds_changed {
 7029                                                    this.left_dock.update(cx, |dock, cx| {
 7030                                                        dock.clamp_panel_size(
 7031                                                            bounds.size.width,
 7032                                                            window,
 7033                                                            cx,
 7034                                                        )
 7035                                                    });
 7036
 7037                                                    this.right_dock.update(cx, |dock, cx| {
 7038                                                        dock.clamp_panel_size(
 7039                                                            bounds.size.width,
 7040                                                            window,
 7041                                                            cx,
 7042                                                        )
 7043                                                    });
 7044
 7045                                                    this.bottom_dock.update(cx, |dock, cx| {
 7046                                                        dock.clamp_panel_size(
 7047                                                            bounds.size.height,
 7048                                                            window,
 7049                                                            cx,
 7050                                                        )
 7051                                                    });
 7052                                                }
 7053                                            })
 7054                                        },
 7055                                        |_, _, _, _| {},
 7056                                    )
 7057                                    .absolute()
 7058                                    .size_full()
 7059                                })
 7060                                .when(self.zoomed.is_none(), |this| {
 7061                                    this.on_drag_move(cx.listener(
 7062                                        move |workspace,
 7063                                              e: &DragMoveEvent<DraggedDock>,
 7064                                              window,
 7065                                              cx| {
 7066                                            if workspace.previous_dock_drag_coordinates
 7067                                                != Some(e.event.position)
 7068                                            {
 7069                                                workspace.previous_dock_drag_coordinates =
 7070                                                    Some(e.event.position);
 7071                                                match e.drag(cx).0 {
 7072                                                    DockPosition::Left => {
 7073                                                        workspace.resize_left_dock(
 7074                                                            e.event.position.x
 7075                                                                - workspace.bounds.left(),
 7076                                                            window,
 7077                                                            cx,
 7078                                                        );
 7079                                                    }
 7080                                                    DockPosition::Right => {
 7081                                                        workspace.resize_right_dock(
 7082                                                            workspace.bounds.right()
 7083                                                                - e.event.position.x,
 7084                                                            window,
 7085                                                            cx,
 7086                                                        );
 7087                                                    }
 7088                                                    DockPosition::Bottom => {
 7089                                                        workspace.resize_bottom_dock(
 7090                                                            workspace.bounds.bottom()
 7091                                                                - e.event.position.y,
 7092                                                            window,
 7093                                                            cx,
 7094                                                        );
 7095                                                    }
 7096                                                };
 7097                                                workspace.serialize_workspace(window, cx);
 7098                                            }
 7099                                        },
 7100                                    ))
 7101                                    .on_drag_move(cx.listener(
 7102                                        move |workspace,
 7103                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7104                                              window,
 7105                                              cx| {
 7106                                            let slot = e.drag(cx).0;
 7107                                            match slot {
 7108                                                UtilityPaneSlot::Left => {
 7109                                                    let left_dock_width = workspace.left_dock.read(cx)
 7110                                                        .active_panel_size(window, cx)
 7111                                                        .unwrap_or(gpui::px(0.0));
 7112                                                    let new_width = e.event.position.x
 7113                                                        - workspace.bounds.left()
 7114                                                        - left_dock_width;
 7115                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7116                                                }
 7117                                                UtilityPaneSlot::Right => {
 7118                                                    let right_dock_width = workspace.right_dock.read(cx)
 7119                                                        .active_panel_size(window, cx)
 7120                                                        .unwrap_or(gpui::px(0.0));
 7121                                                    let new_width = workspace.bounds.right()
 7122                                                        - e.event.position.x
 7123                                                        - right_dock_width;
 7124                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7125                                                }
 7126                                            }
 7127                                        },
 7128                                    ))
 7129                                })
 7130                                .child({
 7131                                    match bottom_dock_layout {
 7132                                        BottomDockLayout::Full => div()
 7133                                            .flex()
 7134                                            .flex_col()
 7135                                            .h_full()
 7136                                            .child(
 7137                                                div()
 7138                                                    .flex()
 7139                                                    .flex_row()
 7140                                                    .flex_1()
 7141                                                    .overflow_hidden()
 7142                                                    .children(self.render_dock(
 7143                                                        DockPosition::Left,
 7144                                                        &self.left_dock,
 7145                                                        window,
 7146                                                        cx,
 7147                                                    ))
 7148                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7149                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7150                                                            this.when(pane.expanded(cx), |this| {
 7151                                                                this.child(
 7152                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7153                                                                )
 7154                                                            })
 7155                                                        })
 7156                                                    })
 7157                                                    .child(
 7158                                                        div()
 7159                                                            .flex()
 7160                                                            .flex_col()
 7161                                                            .flex_1()
 7162                                                            .overflow_hidden()
 7163                                                            .child(
 7164                                                                h_flex()
 7165                                                                    .flex_1()
 7166                                                                    .when_some(
 7167                                                                        paddings.0,
 7168                                                                        |this, p| {
 7169                                                                            this.child(
 7170                                                                                p.border_r_1(),
 7171                                                                            )
 7172                                                                        },
 7173                                                                    )
 7174                                                                    .child(self.center.render(
 7175                                                                        self.zoomed.as_ref(),
 7176                                                                        &PaneRenderContext {
 7177                                                                            follower_states:
 7178                                                                                &self.follower_states,
 7179                                                                            active_call: self.active_call(),
 7180                                                                            active_pane: &self.active_pane,
 7181                                                                            app_state: &self.app_state,
 7182                                                                            project: &self.project,
 7183                                                                            workspace: &self.weak_self,
 7184                                                                        },
 7185                                                                        window,
 7186                                                                        cx,
 7187                                                                    ))
 7188                                                                    .when_some(
 7189                                                                        paddings.1,
 7190                                                                        |this, p| {
 7191                                                                            this.child(
 7192                                                                                p.border_l_1(),
 7193                                                                            )
 7194                                                                        },
 7195                                                                    ),
 7196                                                            ),
 7197                                                    )
 7198                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7199                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7200                                                            this.when(pane.expanded(cx), |this| {
 7201                                                                this.child(
 7202                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7203                                                                )
 7204                                                            })
 7205                                                        })
 7206                                                    })
 7207                                                    .children(self.render_dock(
 7208                                                        DockPosition::Right,
 7209                                                        &self.right_dock,
 7210                                                        window,
 7211                                                        cx,
 7212                                                    )),
 7213                                            )
 7214                                            .child(div().w_full().children(self.render_dock(
 7215                                                DockPosition::Bottom,
 7216                                                &self.bottom_dock,
 7217                                                window,
 7218                                                cx
 7219                                            ))),
 7220
 7221                                        BottomDockLayout::LeftAligned => div()
 7222                                            .flex()
 7223                                            .flex_row()
 7224                                            .h_full()
 7225                                            .child(
 7226                                                div()
 7227                                                    .flex()
 7228                                                    .flex_col()
 7229                                                    .flex_1()
 7230                                                    .h_full()
 7231                                                    .child(
 7232                                                        div()
 7233                                                            .flex()
 7234                                                            .flex_row()
 7235                                                            .flex_1()
 7236                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7237                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7238                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7239                                                                    this.when(pane.expanded(cx), |this| {
 7240                                                                        this.child(
 7241                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7242                                                                        )
 7243                                                                    })
 7244                                                                })
 7245                                                            })
 7246                                                            .child(
 7247                                                                div()
 7248                                                                    .flex()
 7249                                                                    .flex_col()
 7250                                                                    .flex_1()
 7251                                                                    .overflow_hidden()
 7252                                                                    .child(
 7253                                                                        h_flex()
 7254                                                                            .flex_1()
 7255                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7256                                                                            .child(self.center.render(
 7257                                                                                self.zoomed.as_ref(),
 7258                                                                                &PaneRenderContext {
 7259                                                                                    follower_states:
 7260                                                                                        &self.follower_states,
 7261                                                                                    active_call: self.active_call(),
 7262                                                                                    active_pane: &self.active_pane,
 7263                                                                                    app_state: &self.app_state,
 7264                                                                                    project: &self.project,
 7265                                                                                    workspace: &self.weak_self,
 7266                                                                                },
 7267                                                                                window,
 7268                                                                                cx,
 7269                                                                            ))
 7270                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7271                                                                    )
 7272                                                            )
 7273                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7274                                                                this.when(pane.expanded(cx), |this| {
 7275                                                                    this.child(
 7276                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7277                                                                    )
 7278                                                                })
 7279                                                            })
 7280                                                    )
 7281                                                    .child(
 7282                                                        div()
 7283                                                            .w_full()
 7284                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7285                                                    ),
 7286                                            )
 7287                                            .children(self.render_dock(
 7288                                                DockPosition::Right,
 7289                                                &self.right_dock,
 7290                                                window,
 7291                                                cx,
 7292                                            )),
 7293
 7294                                        BottomDockLayout::RightAligned => div()
 7295                                            .flex()
 7296                                            .flex_row()
 7297                                            .h_full()
 7298                                            .children(self.render_dock(
 7299                                                DockPosition::Left,
 7300                                                &self.left_dock,
 7301                                                window,
 7302                                                cx,
 7303                                            ))
 7304                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7305                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7306                                                    this.when(pane.expanded(cx), |this| {
 7307                                                        this.child(
 7308                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7309                                                        )
 7310                                                    })
 7311                                                })
 7312                                            })
 7313                                            .child(
 7314                                                div()
 7315                                                    .flex()
 7316                                                    .flex_col()
 7317                                                    .flex_1()
 7318                                                    .h_full()
 7319                                                    .child(
 7320                                                        div()
 7321                                                            .flex()
 7322                                                            .flex_row()
 7323                                                            .flex_1()
 7324                                                            .child(
 7325                                                                div()
 7326                                                                    .flex()
 7327                                                                    .flex_col()
 7328                                                                    .flex_1()
 7329                                                                    .overflow_hidden()
 7330                                                                    .child(
 7331                                                                        h_flex()
 7332                                                                            .flex_1()
 7333                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7334                                                                            .child(self.center.render(
 7335                                                                                self.zoomed.as_ref(),
 7336                                                                                &PaneRenderContext {
 7337                                                                                    follower_states:
 7338                                                                                        &self.follower_states,
 7339                                                                                    active_call: self.active_call(),
 7340                                                                                    active_pane: &self.active_pane,
 7341                                                                                    app_state: &self.app_state,
 7342                                                                                    project: &self.project,
 7343                                                                                    workspace: &self.weak_self,
 7344                                                                                },
 7345                                                                                window,
 7346                                                                                cx,
 7347                                                                            ))
 7348                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7349                                                                    )
 7350                                                            )
 7351                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7352                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7353                                                                    this.when(pane.expanded(cx), |this| {
 7354                                                                        this.child(
 7355                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7356                                                                        )
 7357                                                                    })
 7358                                                                })
 7359                                                            })
 7360                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7361                                                    )
 7362                                                    .child(
 7363                                                        div()
 7364                                                            .w_full()
 7365                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7366                                                    ),
 7367                                            ),
 7368
 7369                                        BottomDockLayout::Contained => div()
 7370                                            .flex()
 7371                                            .flex_row()
 7372                                            .h_full()
 7373                                            .children(self.render_dock(
 7374                                                DockPosition::Left,
 7375                                                &self.left_dock,
 7376                                                window,
 7377                                                cx,
 7378                                            ))
 7379                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7380                                                this.when(pane.expanded(cx), |this| {
 7381                                                    this.child(
 7382                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7383                                                    )
 7384                                                })
 7385                                            })
 7386                                            .child(
 7387                                                div()
 7388                                                    .flex()
 7389                                                    .flex_col()
 7390                                                    .flex_1()
 7391                                                    .overflow_hidden()
 7392                                                    .child(
 7393                                                        h_flex()
 7394                                                            .flex_1()
 7395                                                            .when_some(paddings.0, |this, p| {
 7396                                                                this.child(p.border_r_1())
 7397                                                            })
 7398                                                            .child(self.center.render(
 7399                                                                self.zoomed.as_ref(),
 7400                                                                &PaneRenderContext {
 7401                                                                    follower_states:
 7402                                                                        &self.follower_states,
 7403                                                                    active_call: self.active_call(),
 7404                                                                    active_pane: &self.active_pane,
 7405                                                                    app_state: &self.app_state,
 7406                                                                    project: &self.project,
 7407                                                                    workspace: &self.weak_self,
 7408                                                                },
 7409                                                                window,
 7410                                                                cx,
 7411                                                            ))
 7412                                                            .when_some(paddings.1, |this, p| {
 7413                                                                this.child(p.border_l_1())
 7414                                                            }),
 7415                                                    )
 7416                                                    .children(self.render_dock(
 7417                                                        DockPosition::Bottom,
 7418                                                        &self.bottom_dock,
 7419                                                        window,
 7420                                                        cx,
 7421                                                    )),
 7422                                            )
 7423                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7424                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7425                                                    this.when(pane.expanded(cx), |this| {
 7426                                                        this.child(
 7427                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7428                                                        )
 7429                                                    })
 7430                                                })
 7431                                            })
 7432                                            .children(self.render_dock(
 7433                                                DockPosition::Right,
 7434                                                &self.right_dock,
 7435                                                window,
 7436                                                cx,
 7437                                            )),
 7438                                    }
 7439                                })
 7440                                .children(self.zoomed.as_ref().and_then(|view| {
 7441                                    let zoomed_view = view.upgrade()?;
 7442                                    let div = div()
 7443                                        .occlude()
 7444                                        .absolute()
 7445                                        .overflow_hidden()
 7446                                        .border_color(colors.border)
 7447                                        .bg(colors.background)
 7448                                        .child(zoomed_view)
 7449                                        .inset_0()
 7450                                        .shadow_lg();
 7451
 7452                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7453                                       return Some(div);
 7454                                    }
 7455
 7456                                    Some(match self.zoomed_position {
 7457                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7458                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7459                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7460                                        None => {
 7461                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7462                                        }
 7463                                    })
 7464                                }))
 7465                                .children(self.render_notifications(window, cx)),
 7466                        )
 7467                        .when(self.status_bar_visible(cx), |parent| {
 7468                            parent.child(self.status_bar.clone())
 7469                        })
 7470                        .child(self.modal_layer.clone())
 7471                        .child(self.toast_layer.clone()),
 7472                ),
 7473            window,
 7474            cx,
 7475        )
 7476    }
 7477}
 7478
 7479impl WorkspaceStore {
 7480    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7481        Self {
 7482            workspaces: Default::default(),
 7483            _subscriptions: vec![
 7484                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7485                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7486            ],
 7487            client,
 7488        }
 7489    }
 7490
 7491    pub fn update_followers(
 7492        &self,
 7493        project_id: Option<u64>,
 7494        update: proto::update_followers::Variant,
 7495        cx: &App,
 7496    ) -> Option<()> {
 7497        let active_call = ActiveCall::try_global(cx)?;
 7498        let room_id = active_call.read(cx).room()?.read(cx).id();
 7499        self.client
 7500            .send(proto::UpdateFollowers {
 7501                room_id,
 7502                project_id,
 7503                variant: Some(update),
 7504            })
 7505            .log_err()
 7506    }
 7507
 7508    pub async fn handle_follow(
 7509        this: Entity<Self>,
 7510        envelope: TypedEnvelope<proto::Follow>,
 7511        mut cx: AsyncApp,
 7512    ) -> Result<proto::FollowResponse> {
 7513        this.update(&mut cx, |this, cx| {
 7514            let follower = Follower {
 7515                project_id: envelope.payload.project_id,
 7516                peer_id: envelope.original_sender_id()?,
 7517            };
 7518
 7519            let mut response = proto::FollowResponse::default();
 7520            this.workspaces.retain(|workspace| {
 7521                workspace
 7522                    .update(cx, |workspace, window, cx| {
 7523                        let handler_response =
 7524                            workspace.handle_follow(follower.project_id, window, cx);
 7525                        if let Some(active_view) = handler_response.active_view
 7526                            && workspace.project.read(cx).remote_id() == follower.project_id
 7527                        {
 7528                            response.active_view = Some(active_view)
 7529                        }
 7530                    })
 7531                    .is_ok()
 7532            });
 7533
 7534            Ok(response)
 7535        })?
 7536    }
 7537
 7538    async fn handle_update_followers(
 7539        this: Entity<Self>,
 7540        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7541        mut cx: AsyncApp,
 7542    ) -> Result<()> {
 7543        let leader_id = envelope.original_sender_id()?;
 7544        let update = envelope.payload;
 7545
 7546        this.update(&mut cx, |this, cx| {
 7547            this.workspaces.retain(|workspace| {
 7548                workspace
 7549                    .update(cx, |workspace, window, cx| {
 7550                        let project_id = workspace.project.read(cx).remote_id();
 7551                        if update.project_id != project_id && update.project_id.is_some() {
 7552                            return;
 7553                        }
 7554                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7555                    })
 7556                    .is_ok()
 7557            });
 7558            Ok(())
 7559        })?
 7560    }
 7561
 7562    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7563        &self.workspaces
 7564    }
 7565}
 7566
 7567impl ViewId {
 7568    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7569        Ok(Self {
 7570            creator: message
 7571                .creator
 7572                .map(CollaboratorId::PeerId)
 7573                .context("creator is missing")?,
 7574            id: message.id,
 7575        })
 7576    }
 7577
 7578    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7579        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7580            Some(proto::ViewId {
 7581                creator: Some(peer_id),
 7582                id: self.id,
 7583            })
 7584        } else {
 7585            None
 7586        }
 7587    }
 7588}
 7589
 7590impl FollowerState {
 7591    fn pane(&self) -> &Entity<Pane> {
 7592        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7593    }
 7594}
 7595
 7596pub trait WorkspaceHandle {
 7597    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7598}
 7599
 7600impl WorkspaceHandle for Entity<Workspace> {
 7601    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7602        self.read(cx)
 7603            .worktrees(cx)
 7604            .flat_map(|worktree| {
 7605                let worktree_id = worktree.read(cx).id();
 7606                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7607                    worktree_id,
 7608                    path: f.path.clone(),
 7609                })
 7610            })
 7611            .collect::<Vec<_>>()
 7612    }
 7613}
 7614
 7615pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7616    DB.last_workspace().await.log_err().flatten()
 7617}
 7618
 7619pub fn last_session_workspace_locations(
 7620    last_session_id: &str,
 7621    last_session_window_stack: Option<Vec<WindowId>>,
 7622) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7623    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7624        .log_err()
 7625}
 7626
 7627actions!(
 7628    collab,
 7629    [
 7630        /// Opens the channel notes for the current call.
 7631        ///
 7632        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7633        /// channel in the collab panel.
 7634        ///
 7635        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7636        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7637        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7638        OpenChannelNotes,
 7639        /// Mutes your microphone.
 7640        Mute,
 7641        /// Deafens yourself (mute both microphone and speakers).
 7642        Deafen,
 7643        /// Leaves the current call.
 7644        LeaveCall,
 7645        /// Shares the current project with collaborators.
 7646        ShareProject,
 7647        /// Shares your screen with collaborators.
 7648        ScreenShare,
 7649        /// Copies the current room name and session id for debugging purposes.
 7650        CopyRoomId,
 7651    ]
 7652);
 7653actions!(
 7654    zed,
 7655    [
 7656        /// Opens the Zed log file.
 7657        OpenLog,
 7658        /// Reveals the Zed log file in the system file manager.
 7659        RevealLogInFileManager
 7660    ]
 7661);
 7662
 7663async fn join_channel_internal(
 7664    channel_id: ChannelId,
 7665    app_state: &Arc<AppState>,
 7666    requesting_window: Option<WindowHandle<Workspace>>,
 7667    active_call: &Entity<ActiveCall>,
 7668    cx: &mut AsyncApp,
 7669) -> Result<bool> {
 7670    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7671        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7672            return (false, None);
 7673        };
 7674
 7675        let already_in_channel = room.channel_id() == Some(channel_id);
 7676        let should_prompt = room.is_sharing_project()
 7677            && !room.remote_participants().is_empty()
 7678            && !already_in_channel;
 7679        let open_room = if already_in_channel {
 7680            active_call.room().cloned()
 7681        } else {
 7682            None
 7683        };
 7684        (should_prompt, open_room)
 7685    })?;
 7686
 7687    if let Some(room) = open_room {
 7688        let task = room.update(cx, |room, cx| {
 7689            if let Some((project, host)) = room.most_active_project(cx) {
 7690                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7691            }
 7692
 7693            None
 7694        })?;
 7695        if let Some(task) = task {
 7696            task.await?;
 7697        }
 7698        return anyhow::Ok(true);
 7699    }
 7700
 7701    if should_prompt {
 7702        if let Some(workspace) = requesting_window {
 7703            let answer = workspace
 7704                .update(cx, |_, window, cx| {
 7705                    window.prompt(
 7706                        PromptLevel::Warning,
 7707                        "Do you want to switch channels?",
 7708                        Some("Leaving this call will unshare your current project."),
 7709                        &["Yes, Join Channel", "Cancel"],
 7710                        cx,
 7711                    )
 7712                })?
 7713                .await;
 7714
 7715            if answer == Ok(1) {
 7716                return Ok(false);
 7717            }
 7718        } else {
 7719            return Ok(false); // unreachable!() hopefully
 7720        }
 7721    }
 7722
 7723    let client = cx.update(|cx| active_call.read(cx).client())?;
 7724
 7725    let mut client_status = client.status();
 7726
 7727    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7728    'outer: loop {
 7729        let Some(status) = client_status.recv().await else {
 7730            anyhow::bail!("error connecting");
 7731        };
 7732
 7733        match status {
 7734            Status::Connecting
 7735            | Status::Authenticating
 7736            | Status::Authenticated
 7737            | Status::Reconnecting
 7738            | Status::Reauthenticating
 7739            | Status::Reauthenticated => continue,
 7740            Status::Connected { .. } => break 'outer,
 7741            Status::SignedOut | Status::AuthenticationError => {
 7742                return Err(ErrorCode::SignedOut.into());
 7743            }
 7744            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7745            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7746                return Err(ErrorCode::Disconnected.into());
 7747            }
 7748        }
 7749    }
 7750
 7751    let room = active_call
 7752        .update(cx, |active_call, cx| {
 7753            active_call.join_channel(channel_id, cx)
 7754        })?
 7755        .await?;
 7756
 7757    let Some(room) = room else {
 7758        return anyhow::Ok(true);
 7759    };
 7760
 7761    room.update(cx, |room, _| room.room_update_completed())?
 7762        .await;
 7763
 7764    let task = room.update(cx, |room, cx| {
 7765        if let Some((project, host)) = room.most_active_project(cx) {
 7766            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7767        }
 7768
 7769        // If you are the first to join a channel, see if you should share your project.
 7770        if room.remote_participants().is_empty()
 7771            && !room.local_participant_is_guest()
 7772            && let Some(workspace) = requesting_window
 7773        {
 7774            let project = workspace.update(cx, |workspace, _, cx| {
 7775                let project = workspace.project.read(cx);
 7776
 7777                if !CallSettings::get_global(cx).share_on_join {
 7778                    return None;
 7779                }
 7780
 7781                if (project.is_local() || project.is_via_remote_server())
 7782                    && project.visible_worktrees(cx).any(|tree| {
 7783                        tree.read(cx)
 7784                            .root_entry()
 7785                            .is_some_and(|entry| entry.is_dir())
 7786                    })
 7787                {
 7788                    Some(workspace.project.clone())
 7789                } else {
 7790                    None
 7791                }
 7792            });
 7793            if let Ok(Some(project)) = project {
 7794                return Some(cx.spawn(async move |room, cx| {
 7795                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7796                        .await?;
 7797                    Ok(())
 7798                }));
 7799            }
 7800        }
 7801
 7802        None
 7803    })?;
 7804    if let Some(task) = task {
 7805        task.await?;
 7806        return anyhow::Ok(true);
 7807    }
 7808    anyhow::Ok(false)
 7809}
 7810
 7811pub fn join_channel(
 7812    channel_id: ChannelId,
 7813    app_state: Arc<AppState>,
 7814    requesting_window: Option<WindowHandle<Workspace>>,
 7815    cx: &mut App,
 7816) -> Task<Result<()>> {
 7817    let active_call = ActiveCall::global(cx);
 7818    cx.spawn(async move |cx| {
 7819        let result =
 7820            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7821                .await;
 7822
 7823        // join channel succeeded, and opened a window
 7824        if matches!(result, Ok(true)) {
 7825            return anyhow::Ok(());
 7826        }
 7827
 7828        // find an existing workspace to focus and show call controls
 7829        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7830        if active_window.is_none() {
 7831            // no open workspaces, make one to show the error in (blergh)
 7832            let (window_handle, _) = cx
 7833                .update(|cx| {
 7834                    Workspace::new_local(
 7835                        vec![],
 7836                        app_state.clone(),
 7837                        requesting_window,
 7838                        None,
 7839                        None,
 7840                        cx,
 7841                    )
 7842                })?
 7843                .await?;
 7844
 7845            if result.is_ok() {
 7846                cx.update(|cx| {
 7847                    cx.dispatch_action(&OpenChannelNotes);
 7848                })
 7849                .log_err();
 7850            }
 7851
 7852            active_window = Some(window_handle);
 7853        }
 7854
 7855        if let Err(err) = result {
 7856            log::error!("failed to join channel: {}", err);
 7857            if let Some(active_window) = active_window {
 7858                active_window
 7859                    .update(cx, |_, window, cx| {
 7860                        let detail: SharedString = match err.error_code() {
 7861                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7862                            ErrorCode::UpgradeRequired => concat!(
 7863                                "Your are running an unsupported version of Zed. ",
 7864                                "Please update to continue."
 7865                            )
 7866                            .into(),
 7867                            ErrorCode::NoSuchChannel => concat!(
 7868                                "No matching channel was found. ",
 7869                                "Please check the link and try again."
 7870                            )
 7871                            .into(),
 7872                            ErrorCode::Forbidden => concat!(
 7873                                "This channel is private, and you do not have access. ",
 7874                                "Please ask someone to add you and try again."
 7875                            )
 7876                            .into(),
 7877                            ErrorCode::Disconnected => {
 7878                                "Please check your internet connection and try again.".into()
 7879                            }
 7880                            _ => format!("{}\n\nPlease try again.", err).into(),
 7881                        };
 7882                        window.prompt(
 7883                            PromptLevel::Critical,
 7884                            "Failed to join channel",
 7885                            Some(&detail),
 7886                            &["Ok"],
 7887                            cx,
 7888                        )
 7889                    })?
 7890                    .await
 7891                    .ok();
 7892            }
 7893        }
 7894
 7895        // return ok, we showed the error to the user.
 7896        anyhow::Ok(())
 7897    })
 7898}
 7899
 7900pub async fn get_any_active_workspace(
 7901    app_state: Arc<AppState>,
 7902    mut cx: AsyncApp,
 7903) -> anyhow::Result<WindowHandle<Workspace>> {
 7904    // find an existing workspace to focus and show call controls
 7905    let active_window = activate_any_workspace_window(&mut cx);
 7906    if active_window.is_none() {
 7907        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7908            .await?;
 7909    }
 7910    activate_any_workspace_window(&mut cx).context("could not open zed")
 7911}
 7912
 7913fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7914    cx.update(|cx| {
 7915        if let Some(workspace_window) = cx
 7916            .active_window()
 7917            .and_then(|window| window.downcast::<Workspace>())
 7918        {
 7919            return Some(workspace_window);
 7920        }
 7921
 7922        for window in cx.windows() {
 7923            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7924                workspace_window
 7925                    .update(cx, |_, window, _| window.activate_window())
 7926                    .ok();
 7927                return Some(workspace_window);
 7928            }
 7929        }
 7930        None
 7931    })
 7932    .ok()
 7933    .flatten()
 7934}
 7935
 7936pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7937    cx.windows()
 7938        .into_iter()
 7939        .filter_map(|window| window.downcast::<Workspace>())
 7940        .filter(|workspace| {
 7941            workspace
 7942                .read(cx)
 7943                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7944        })
 7945        .collect()
 7946}
 7947
 7948#[derive(Default)]
 7949pub struct OpenOptions {
 7950    pub visible: Option<OpenVisible>,
 7951    pub focus: Option<bool>,
 7952    pub open_new_workspace: Option<bool>,
 7953    pub prefer_focused_window: bool,
 7954    pub replace_window: Option<WindowHandle<Workspace>>,
 7955    pub env: Option<HashMap<String, String>>,
 7956}
 7957
 7958#[allow(clippy::type_complexity)]
 7959pub fn open_paths(
 7960    abs_paths: &[PathBuf],
 7961    app_state: Arc<AppState>,
 7962    open_options: OpenOptions,
 7963    cx: &mut App,
 7964) -> Task<
 7965    anyhow::Result<(
 7966        WindowHandle<Workspace>,
 7967        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7968    )>,
 7969> {
 7970    let abs_paths = abs_paths.to_vec();
 7971    let mut existing = None;
 7972    let mut best_match = None;
 7973    let mut open_visible = OpenVisible::All;
 7974    #[cfg(target_os = "windows")]
 7975    let wsl_path = abs_paths
 7976        .iter()
 7977        .find_map(|p| util::paths::WslPath::from_path(p));
 7978
 7979    cx.spawn(async move |cx| {
 7980        if open_options.open_new_workspace != Some(true) {
 7981            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7982            let all_metadatas = futures::future::join_all(all_paths)
 7983                .await
 7984                .into_iter()
 7985                .filter_map(|result| result.ok().flatten())
 7986                .collect::<Vec<_>>();
 7987
 7988            cx.update(|cx| {
 7989                for window in local_workspace_windows(cx) {
 7990                    if let Ok(workspace) = window.read(cx) {
 7991                        let m = workspace.project.read(cx).visibility_for_paths(
 7992                            &abs_paths,
 7993                            &all_metadatas,
 7994                            open_options.open_new_workspace == None,
 7995                            cx,
 7996                        );
 7997                        if m > best_match {
 7998                            existing = Some(window);
 7999                            best_match = m;
 8000                        } else if best_match.is_none()
 8001                            && open_options.open_new_workspace == Some(false)
 8002                        {
 8003                            existing = Some(window)
 8004                        }
 8005                    }
 8006                }
 8007            })?;
 8008
 8009            if open_options.open_new_workspace.is_none()
 8010                && (existing.is_none() || open_options.prefer_focused_window)
 8011                && all_metadatas.iter().all(|file| !file.is_dir)
 8012            {
 8013                cx.update(|cx| {
 8014                    if let Some(window) = cx
 8015                        .active_window()
 8016                        .and_then(|window| window.downcast::<Workspace>())
 8017                        && let Ok(workspace) = window.read(cx)
 8018                    {
 8019                        let project = workspace.project().read(cx);
 8020                        if project.is_local() && !project.is_via_collab() {
 8021                            existing = Some(window);
 8022                            open_visible = OpenVisible::None;
 8023                            return;
 8024                        }
 8025                    }
 8026                    for window in local_workspace_windows(cx) {
 8027                        if let Ok(workspace) = window.read(cx) {
 8028                            let project = workspace.project().read(cx);
 8029                            if project.is_via_collab() {
 8030                                continue;
 8031                            }
 8032                            existing = Some(window);
 8033                            open_visible = OpenVisible::None;
 8034                            break;
 8035                        }
 8036                    }
 8037                })?;
 8038            }
 8039        }
 8040
 8041        let result = if let Some(existing) = existing {
 8042            let open_task = existing
 8043                .update(cx, |workspace, window, cx| {
 8044                    window.activate_window();
 8045                    workspace.open_paths(
 8046                        abs_paths,
 8047                        OpenOptions {
 8048                            visible: Some(open_visible),
 8049                            ..Default::default()
 8050                        },
 8051                        None,
 8052                        window,
 8053                        cx,
 8054                    )
 8055                })?
 8056                .await;
 8057
 8058            _ = existing.update(cx, |workspace, _, cx| {
 8059                for item in open_task.iter().flatten() {
 8060                    if let Err(e) = item {
 8061                        workspace.show_error(&e, cx);
 8062                    }
 8063                }
 8064            });
 8065
 8066            Ok((existing, open_task))
 8067        } else {
 8068            cx.update(move |cx| {
 8069                Workspace::new_local(
 8070                    abs_paths,
 8071                    app_state.clone(),
 8072                    open_options.replace_window,
 8073                    open_options.env,
 8074                    None,
 8075                    cx,
 8076                )
 8077            })?
 8078            .await
 8079        };
 8080
 8081        #[cfg(target_os = "windows")]
 8082        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8083            && let Ok((workspace, _)) = &result
 8084        {
 8085            workspace
 8086                .update(cx, move |workspace, _window, cx| {
 8087                    struct OpenInWsl;
 8088                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8089                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8090                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8091                        cx.new(move |cx| {
 8092                            MessageNotification::new(msg, cx)
 8093                                .primary_message("Open in WSL")
 8094                                .primary_icon(IconName::FolderOpen)
 8095                                .primary_on_click(move |window, cx| {
 8096                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8097                                            distro: remote::WslConnectionOptions {
 8098                                                    distro_name: distro.clone(),
 8099                                                user: None,
 8100                                            },
 8101                                            paths: vec![path.clone().into()],
 8102                                        }), cx)
 8103                                })
 8104                        })
 8105                    });
 8106                })
 8107                .unwrap();
 8108        };
 8109        result
 8110    })
 8111}
 8112
 8113pub fn open_new(
 8114    open_options: OpenOptions,
 8115    app_state: Arc<AppState>,
 8116    cx: &mut App,
 8117    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8118) -> Task<anyhow::Result<()>> {
 8119    let task = Workspace::new_local(
 8120        Vec::new(),
 8121        app_state,
 8122        None,
 8123        open_options.env,
 8124        Some(Box::new(init)),
 8125        cx,
 8126    );
 8127    cx.spawn(async move |_cx| {
 8128        let (_workspace, _opened_paths) = task.await?;
 8129        // Init callback is called synchronously during workspace creation
 8130        Ok(())
 8131    })
 8132}
 8133
 8134pub fn create_and_open_local_file(
 8135    path: &'static Path,
 8136    window: &mut Window,
 8137    cx: &mut Context<Workspace>,
 8138    default_content: impl 'static + Send + FnOnce() -> Rope,
 8139) -> Task<Result<Box<dyn ItemHandle>>> {
 8140    cx.spawn_in(window, async move |workspace, cx| {
 8141        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8142        if !fs.is_file(path).await {
 8143            fs.create_file(path, Default::default()).await?;
 8144            fs.save(path, &default_content(), Default::default())
 8145                .await?;
 8146        }
 8147
 8148        let mut items = workspace
 8149            .update_in(cx, |workspace, window, cx| {
 8150                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8151                    workspace.open_paths(
 8152                        vec![path.to_path_buf()],
 8153                        OpenOptions {
 8154                            visible: Some(OpenVisible::None),
 8155                            ..Default::default()
 8156                        },
 8157                        None,
 8158                        window,
 8159                        cx,
 8160                    )
 8161                })
 8162            })?
 8163            .await?
 8164            .await;
 8165
 8166        let item = items.pop().flatten();
 8167        item.with_context(|| format!("path {path:?} is not a file"))?
 8168    })
 8169}
 8170
 8171pub fn open_remote_project_with_new_connection(
 8172    window: WindowHandle<Workspace>,
 8173    remote_connection: Arc<dyn RemoteConnection>,
 8174    cancel_rx: oneshot::Receiver<()>,
 8175    delegate: Arc<dyn RemoteClientDelegate>,
 8176    app_state: Arc<AppState>,
 8177    paths: Vec<PathBuf>,
 8178    cx: &mut App,
 8179) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8180    cx.spawn(async move |cx| {
 8181        let (workspace_id, serialized_workspace) =
 8182            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8183                .await?;
 8184
 8185        let session = match cx
 8186            .update(|cx| {
 8187                remote::RemoteClient::new(
 8188                    ConnectionIdentifier::Workspace(workspace_id.0),
 8189                    remote_connection,
 8190                    cancel_rx,
 8191                    delegate,
 8192                    cx,
 8193                )
 8194            })?
 8195            .await?
 8196        {
 8197            Some(result) => result,
 8198            None => return Ok(Vec::new()),
 8199        };
 8200
 8201        let project = cx.update(|cx| {
 8202            project::Project::remote(
 8203                session,
 8204                app_state.client.clone(),
 8205                app_state.node_runtime.clone(),
 8206                app_state.user_store.clone(),
 8207                app_state.languages.clone(),
 8208                app_state.fs.clone(),
 8209                true,
 8210                cx,
 8211            )
 8212        })?;
 8213
 8214        open_remote_project_inner(
 8215            project,
 8216            paths,
 8217            workspace_id,
 8218            serialized_workspace,
 8219            app_state,
 8220            window,
 8221            cx,
 8222        )
 8223        .await
 8224    })
 8225}
 8226
 8227pub fn open_remote_project_with_existing_connection(
 8228    connection_options: RemoteConnectionOptions,
 8229    project: Entity<Project>,
 8230    paths: Vec<PathBuf>,
 8231    app_state: Arc<AppState>,
 8232    window: WindowHandle<Workspace>,
 8233    cx: &mut AsyncApp,
 8234) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8235    cx.spawn(async move |cx| {
 8236        let (workspace_id, serialized_workspace) =
 8237            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8238
 8239        open_remote_project_inner(
 8240            project,
 8241            paths,
 8242            workspace_id,
 8243            serialized_workspace,
 8244            app_state,
 8245            window,
 8246            cx,
 8247        )
 8248        .await
 8249    })
 8250}
 8251
 8252async fn open_remote_project_inner(
 8253    project: Entity<Project>,
 8254    paths: Vec<PathBuf>,
 8255    workspace_id: WorkspaceId,
 8256    serialized_workspace: Option<SerializedWorkspace>,
 8257    app_state: Arc<AppState>,
 8258    window: WindowHandle<Workspace>,
 8259    cx: &mut AsyncApp,
 8260) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8261    let toolchains = DB.toolchains(workspace_id).await?;
 8262    for (toolchain, worktree_path, path) in toolchains {
 8263        project
 8264            .update(cx, |this, cx| {
 8265                let Some(worktree_id) =
 8266                    this.find_worktree(&worktree_path, cx)
 8267                        .and_then(|(worktree, rel_path)| {
 8268                            if rel_path.is_empty() {
 8269                                Some(worktree.read(cx).id())
 8270                            } else {
 8271                                None
 8272                            }
 8273                        })
 8274                else {
 8275                    return Task::ready(None);
 8276                };
 8277
 8278                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8279            })?
 8280            .await;
 8281    }
 8282    let mut project_paths_to_open = vec![];
 8283    let mut project_path_errors = vec![];
 8284
 8285    for path in paths {
 8286        let result = cx
 8287            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8288            .await;
 8289        match result {
 8290            Ok((_, project_path)) => {
 8291                project_paths_to_open.push((path.clone(), Some(project_path)));
 8292            }
 8293            Err(error) => {
 8294                project_path_errors.push(error);
 8295            }
 8296        };
 8297    }
 8298
 8299    if project_paths_to_open.is_empty() {
 8300        return Err(project_path_errors.pop().context("no paths given")?);
 8301    }
 8302
 8303    if let Some(detach_session_task) = window
 8304        .update(cx, |_workspace, window, cx| {
 8305            cx.spawn_in(window, async move |this, cx| {
 8306                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8307            })
 8308        })
 8309        .ok()
 8310    {
 8311        detach_session_task.await.ok();
 8312    }
 8313
 8314    cx.update_window(window.into(), |_, window, cx| {
 8315        window.replace_root(cx, |window, cx| {
 8316            telemetry::event!("SSH Project Opened");
 8317
 8318            let mut workspace =
 8319                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8320            workspace.update_history(cx);
 8321
 8322            if let Some(ref serialized) = serialized_workspace {
 8323                workspace.centered_layout = serialized.centered_layout;
 8324            }
 8325
 8326            workspace
 8327        });
 8328    })?;
 8329
 8330    let items = window
 8331        .update(cx, |_, window, cx| {
 8332            window.activate_window();
 8333            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8334        })?
 8335        .await?;
 8336
 8337    window.update(cx, |workspace, _, cx| {
 8338        for error in project_path_errors {
 8339            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8340                if let Some(path) = error.error_tag("path") {
 8341                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8342                }
 8343            } else {
 8344                workspace.show_error(&error, cx)
 8345            }
 8346        }
 8347    })?;
 8348
 8349    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8350}
 8351
 8352fn deserialize_remote_project(
 8353    connection_options: RemoteConnectionOptions,
 8354    paths: Vec<PathBuf>,
 8355    cx: &AsyncApp,
 8356) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8357    cx.background_spawn(async move {
 8358        let remote_connection_id = persistence::DB
 8359            .get_or_create_remote_connection(connection_options)
 8360            .await?;
 8361
 8362        let serialized_workspace =
 8363            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8364
 8365        let workspace_id = if let Some(workspace_id) =
 8366            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8367        {
 8368            workspace_id
 8369        } else {
 8370            persistence::DB.next_id().await?
 8371        };
 8372
 8373        Ok((workspace_id, serialized_workspace))
 8374    })
 8375}
 8376
 8377pub fn join_in_room_project(
 8378    project_id: u64,
 8379    follow_user_id: u64,
 8380    app_state: Arc<AppState>,
 8381    cx: &mut App,
 8382) -> Task<Result<()>> {
 8383    let windows = cx.windows();
 8384    cx.spawn(async move |cx| {
 8385        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8386            window_handle
 8387                .downcast::<Workspace>()
 8388                .and_then(|window_handle| {
 8389                    window_handle
 8390                        .update(cx, |workspace, _window, cx| {
 8391                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8392                                Some(window_handle)
 8393                            } else {
 8394                                None
 8395                            }
 8396                        })
 8397                        .unwrap_or(None)
 8398                })
 8399        });
 8400
 8401        let workspace = if let Some(existing_workspace) = existing_workspace {
 8402            existing_workspace
 8403        } else {
 8404            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8405            let room = active_call
 8406                .read_with(cx, |call, _| call.room().cloned())?
 8407                .context("not in a call")?;
 8408            let project = room
 8409                .update(cx, |room, cx| {
 8410                    room.join_project(
 8411                        project_id,
 8412                        app_state.languages.clone(),
 8413                        app_state.fs.clone(),
 8414                        cx,
 8415                    )
 8416                })?
 8417                .await?;
 8418
 8419            let window_bounds_override = window_bounds_env_override();
 8420            cx.update(|cx| {
 8421                let mut options = (app_state.build_window_options)(None, cx);
 8422                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8423                cx.open_window(options, |window, cx| {
 8424                    cx.new(|cx| {
 8425                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8426                    })
 8427                })
 8428            })??
 8429        };
 8430
 8431        workspace.update(cx, |workspace, window, cx| {
 8432            cx.activate(true);
 8433            window.activate_window();
 8434
 8435            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8436                let follow_peer_id = room
 8437                    .read(cx)
 8438                    .remote_participants()
 8439                    .iter()
 8440                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8441                    .map(|(_, p)| p.peer_id)
 8442                    .or_else(|| {
 8443                        // If we couldn't follow the given user, follow the host instead.
 8444                        let collaborator = workspace
 8445                            .project()
 8446                            .read(cx)
 8447                            .collaborators()
 8448                            .values()
 8449                            .find(|collaborator| collaborator.is_host)?;
 8450                        Some(collaborator.peer_id)
 8451                    });
 8452
 8453                if let Some(follow_peer_id) = follow_peer_id {
 8454                    workspace.follow(follow_peer_id, window, cx);
 8455                }
 8456            }
 8457        })?;
 8458
 8459        anyhow::Ok(())
 8460    })
 8461}
 8462
 8463pub fn reload(cx: &mut App) {
 8464    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8465    let mut workspace_windows = cx
 8466        .windows()
 8467        .into_iter()
 8468        .filter_map(|window| window.downcast::<Workspace>())
 8469        .collect::<Vec<_>>();
 8470
 8471    // If multiple windows have unsaved changes, and need a save prompt,
 8472    // prompt in the active window before switching to a different window.
 8473    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8474
 8475    let mut prompt = None;
 8476    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8477        prompt = window
 8478            .update(cx, |_, window, cx| {
 8479                window.prompt(
 8480                    PromptLevel::Info,
 8481                    "Are you sure you want to restart?",
 8482                    None,
 8483                    &["Restart", "Cancel"],
 8484                    cx,
 8485                )
 8486            })
 8487            .ok();
 8488    }
 8489
 8490    cx.spawn(async move |cx| {
 8491        if let Some(prompt) = prompt {
 8492            let answer = prompt.await?;
 8493            if answer != 0 {
 8494                return Ok(());
 8495            }
 8496        }
 8497
 8498        // If the user cancels any save prompt, then keep the app open.
 8499        for window in workspace_windows {
 8500            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8501                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8502            }) && !should_close.await?
 8503            {
 8504                return Ok(());
 8505            }
 8506        }
 8507        cx.update(|cx| cx.restart())
 8508    })
 8509    .detach_and_log_err(cx);
 8510}
 8511
 8512fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8513    let mut parts = value.split(',');
 8514    let x: usize = parts.next()?.parse().ok()?;
 8515    let y: usize = parts.next()?.parse().ok()?;
 8516    Some(point(px(x as f32), px(y as f32)))
 8517}
 8518
 8519fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8520    let mut parts = value.split(',');
 8521    let width: usize = parts.next()?.parse().ok()?;
 8522    let height: usize = parts.next()?.parse().ok()?;
 8523    Some(size(px(width as f32), px(height as f32)))
 8524}
 8525
 8526/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8527pub fn client_side_decorations(
 8528    element: impl IntoElement,
 8529    window: &mut Window,
 8530    cx: &mut App,
 8531) -> Stateful<Div> {
 8532    const BORDER_SIZE: Pixels = px(1.0);
 8533    let decorations = window.window_decorations();
 8534
 8535    match decorations {
 8536        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8537        Decorations::Server => window.set_client_inset(px(0.0)),
 8538    }
 8539
 8540    struct GlobalResizeEdge(ResizeEdge);
 8541    impl Global for GlobalResizeEdge {}
 8542
 8543    div()
 8544        .id("window-backdrop")
 8545        .bg(transparent_black())
 8546        .map(|div| match decorations {
 8547            Decorations::Server => div,
 8548            Decorations::Client { tiling, .. } => div
 8549                .when(!(tiling.top || tiling.right), |div| {
 8550                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8551                })
 8552                .when(!(tiling.top || tiling.left), |div| {
 8553                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8554                })
 8555                .when(!(tiling.bottom || tiling.right), |div| {
 8556                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8557                })
 8558                .when(!(tiling.bottom || tiling.left), |div| {
 8559                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8560                })
 8561                .when(!tiling.top, |div| {
 8562                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8563                })
 8564                .when(!tiling.bottom, |div| {
 8565                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8566                })
 8567                .when(!tiling.left, |div| {
 8568                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8569                })
 8570                .when(!tiling.right, |div| {
 8571                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8572                })
 8573                .on_mouse_move(move |e, window, cx| {
 8574                    let size = window.window_bounds().get_bounds().size;
 8575                    let pos = e.position;
 8576
 8577                    let new_edge =
 8578                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8579
 8580                    let edge = cx.try_global::<GlobalResizeEdge>();
 8581                    if new_edge != edge.map(|edge| edge.0) {
 8582                        window
 8583                            .window_handle()
 8584                            .update(cx, |workspace, _, cx| {
 8585                                cx.notify(workspace.entity_id());
 8586                            })
 8587                            .ok();
 8588                    }
 8589                })
 8590                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8591                    let size = window.window_bounds().get_bounds().size;
 8592                    let pos = e.position;
 8593
 8594                    let edge = match resize_edge(
 8595                        pos,
 8596                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8597                        size,
 8598                        tiling,
 8599                    ) {
 8600                        Some(value) => value,
 8601                        None => return,
 8602                    };
 8603
 8604                    window.start_window_resize(edge);
 8605                }),
 8606        })
 8607        .size_full()
 8608        .child(
 8609            div()
 8610                .cursor(CursorStyle::Arrow)
 8611                .map(|div| match decorations {
 8612                    Decorations::Server => div,
 8613                    Decorations::Client { tiling } => div
 8614                        .border_color(cx.theme().colors().border)
 8615                        .when(!(tiling.top || tiling.right), |div| {
 8616                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8617                        })
 8618                        .when(!(tiling.top || tiling.left), |div| {
 8619                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8620                        })
 8621                        .when(!(tiling.bottom || tiling.right), |div| {
 8622                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8623                        })
 8624                        .when(!(tiling.bottom || tiling.left), |div| {
 8625                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8626                        })
 8627                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8628                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8629                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8630                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8631                        .when(!tiling.is_tiled(), |div| {
 8632                            div.shadow(vec![gpui::BoxShadow {
 8633                                color: Hsla {
 8634                                    h: 0.,
 8635                                    s: 0.,
 8636                                    l: 0.,
 8637                                    a: 0.4,
 8638                                },
 8639                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8640                                spread_radius: px(0.),
 8641                                offset: point(px(0.0), px(0.0)),
 8642                            }])
 8643                        }),
 8644                })
 8645                .on_mouse_move(|_e, _, cx| {
 8646                    cx.stop_propagation();
 8647                })
 8648                .size_full()
 8649                .child(element),
 8650        )
 8651        .map(|div| match decorations {
 8652            Decorations::Server => div,
 8653            Decorations::Client { tiling, .. } => div.child(
 8654                canvas(
 8655                    |_bounds, window, _| {
 8656                        window.insert_hitbox(
 8657                            Bounds::new(
 8658                                point(px(0.0), px(0.0)),
 8659                                window.window_bounds().get_bounds().size,
 8660                            ),
 8661                            HitboxBehavior::Normal,
 8662                        )
 8663                    },
 8664                    move |_bounds, hitbox, window, cx| {
 8665                        let mouse = window.mouse_position();
 8666                        let size = window.window_bounds().get_bounds().size;
 8667                        let Some(edge) =
 8668                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8669                        else {
 8670                            return;
 8671                        };
 8672                        cx.set_global(GlobalResizeEdge(edge));
 8673                        window.set_cursor_style(
 8674                            match edge {
 8675                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8676                                ResizeEdge::Left | ResizeEdge::Right => {
 8677                                    CursorStyle::ResizeLeftRight
 8678                                }
 8679                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8680                                    CursorStyle::ResizeUpLeftDownRight
 8681                                }
 8682                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8683                                    CursorStyle::ResizeUpRightDownLeft
 8684                                }
 8685                            },
 8686                            &hitbox,
 8687                        );
 8688                    },
 8689                )
 8690                .size_full()
 8691                .absolute(),
 8692            ),
 8693        })
 8694}
 8695
 8696fn resize_edge(
 8697    pos: Point<Pixels>,
 8698    shadow_size: Pixels,
 8699    window_size: Size<Pixels>,
 8700    tiling: Tiling,
 8701) -> Option<ResizeEdge> {
 8702    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8703    if bounds.contains(&pos) {
 8704        return None;
 8705    }
 8706
 8707    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8708    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8709    if !tiling.top && top_left_bounds.contains(&pos) {
 8710        return Some(ResizeEdge::TopLeft);
 8711    }
 8712
 8713    let top_right_bounds = Bounds::new(
 8714        Point::new(window_size.width - corner_size.width, px(0.)),
 8715        corner_size,
 8716    );
 8717    if !tiling.top && top_right_bounds.contains(&pos) {
 8718        return Some(ResizeEdge::TopRight);
 8719    }
 8720
 8721    let bottom_left_bounds = Bounds::new(
 8722        Point::new(px(0.), window_size.height - corner_size.height),
 8723        corner_size,
 8724    );
 8725    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8726        return Some(ResizeEdge::BottomLeft);
 8727    }
 8728
 8729    let bottom_right_bounds = Bounds::new(
 8730        Point::new(
 8731            window_size.width - corner_size.width,
 8732            window_size.height - corner_size.height,
 8733        ),
 8734        corner_size,
 8735    );
 8736    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8737        return Some(ResizeEdge::BottomRight);
 8738    }
 8739
 8740    if !tiling.top && pos.y < shadow_size {
 8741        Some(ResizeEdge::Top)
 8742    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8743        Some(ResizeEdge::Bottom)
 8744    } else if !tiling.left && pos.x < shadow_size {
 8745        Some(ResizeEdge::Left)
 8746    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8747        Some(ResizeEdge::Right)
 8748    } else {
 8749        None
 8750    }
 8751}
 8752
 8753fn join_pane_into_active(
 8754    active_pane: &Entity<Pane>,
 8755    pane: &Entity<Pane>,
 8756    window: &mut Window,
 8757    cx: &mut App,
 8758) {
 8759    if pane == active_pane {
 8760    } else if pane.read(cx).items_len() == 0 {
 8761        pane.update(cx, |_, cx| {
 8762            cx.emit(pane::Event::Remove {
 8763                focus_on_pane: None,
 8764            });
 8765        })
 8766    } else {
 8767        move_all_items(pane, active_pane, window, cx);
 8768    }
 8769}
 8770
 8771fn move_all_items(
 8772    from_pane: &Entity<Pane>,
 8773    to_pane: &Entity<Pane>,
 8774    window: &mut Window,
 8775    cx: &mut App,
 8776) {
 8777    let destination_is_different = from_pane != to_pane;
 8778    let mut moved_items = 0;
 8779    for (item_ix, item_handle) in from_pane
 8780        .read(cx)
 8781        .items()
 8782        .enumerate()
 8783        .map(|(ix, item)| (ix, item.clone()))
 8784        .collect::<Vec<_>>()
 8785    {
 8786        let ix = item_ix - moved_items;
 8787        if destination_is_different {
 8788            // Close item from previous pane
 8789            from_pane.update(cx, |source, cx| {
 8790                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8791            });
 8792            moved_items += 1;
 8793        }
 8794
 8795        // This automatically removes duplicate items in the pane
 8796        to_pane.update(cx, |destination, cx| {
 8797            destination.add_item(item_handle, true, true, None, window, cx);
 8798            window.focus(&destination.focus_handle(cx), cx)
 8799        });
 8800    }
 8801}
 8802
 8803pub fn move_item(
 8804    source: &Entity<Pane>,
 8805    destination: &Entity<Pane>,
 8806    item_id_to_move: EntityId,
 8807    destination_index: usize,
 8808    activate: bool,
 8809    window: &mut Window,
 8810    cx: &mut App,
 8811) {
 8812    let Some((item_ix, item_handle)) = source
 8813        .read(cx)
 8814        .items()
 8815        .enumerate()
 8816        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8817        .map(|(ix, item)| (ix, item.clone()))
 8818    else {
 8819        // Tab was closed during drag
 8820        return;
 8821    };
 8822
 8823    if source != destination {
 8824        // Close item from previous pane
 8825        source.update(cx, |source, cx| {
 8826            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8827        });
 8828    }
 8829
 8830    // This automatically removes duplicate items in the pane
 8831    destination.update(cx, |destination, cx| {
 8832        destination.add_item_inner(
 8833            item_handle,
 8834            activate,
 8835            activate,
 8836            activate,
 8837            Some(destination_index),
 8838            window,
 8839            cx,
 8840        );
 8841        if activate {
 8842            window.focus(&destination.focus_handle(cx), cx)
 8843        }
 8844    });
 8845}
 8846
 8847pub fn move_active_item(
 8848    source: &Entity<Pane>,
 8849    destination: &Entity<Pane>,
 8850    focus_destination: bool,
 8851    close_if_empty: bool,
 8852    window: &mut Window,
 8853    cx: &mut App,
 8854) {
 8855    if source == destination {
 8856        return;
 8857    }
 8858    let Some(active_item) = source.read(cx).active_item() else {
 8859        return;
 8860    };
 8861    source.update(cx, |source_pane, cx| {
 8862        let item_id = active_item.item_id();
 8863        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8864        destination.update(cx, |target_pane, cx| {
 8865            target_pane.add_item(
 8866                active_item,
 8867                focus_destination,
 8868                focus_destination,
 8869                Some(target_pane.items_len()),
 8870                window,
 8871                cx,
 8872            );
 8873        });
 8874    });
 8875}
 8876
 8877pub fn clone_active_item(
 8878    workspace_id: Option<WorkspaceId>,
 8879    source: &Entity<Pane>,
 8880    destination: &Entity<Pane>,
 8881    focus_destination: bool,
 8882    window: &mut Window,
 8883    cx: &mut App,
 8884) {
 8885    if source == destination {
 8886        return;
 8887    }
 8888    let Some(active_item) = source.read(cx).active_item() else {
 8889        return;
 8890    };
 8891    if !active_item.can_split(cx) {
 8892        return;
 8893    }
 8894    let destination = destination.downgrade();
 8895    let task = active_item.clone_on_split(workspace_id, window, cx);
 8896    window
 8897        .spawn(cx, async move |cx| {
 8898            let Some(clone) = task.await else {
 8899                return;
 8900            };
 8901            destination
 8902                .update_in(cx, |target_pane, window, cx| {
 8903                    target_pane.add_item(
 8904                        clone,
 8905                        focus_destination,
 8906                        focus_destination,
 8907                        Some(target_pane.items_len()),
 8908                        window,
 8909                        cx,
 8910                    );
 8911                })
 8912                .log_err();
 8913        })
 8914        .detach();
 8915}
 8916
 8917#[derive(Debug)]
 8918pub struct WorkspacePosition {
 8919    pub window_bounds: Option<WindowBounds>,
 8920    pub display: Option<Uuid>,
 8921    pub centered_layout: bool,
 8922}
 8923
 8924pub fn remote_workspace_position_from_db(
 8925    connection_options: RemoteConnectionOptions,
 8926    paths_to_open: &[PathBuf],
 8927    cx: &App,
 8928) -> Task<Result<WorkspacePosition>> {
 8929    let paths = paths_to_open.to_vec();
 8930
 8931    cx.background_spawn(async move {
 8932        let remote_connection_id = persistence::DB
 8933            .get_or_create_remote_connection(connection_options)
 8934            .await
 8935            .context("fetching serialized ssh project")?;
 8936        let serialized_workspace =
 8937            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8938
 8939        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8940            (Some(WindowBounds::Windowed(bounds)), None)
 8941        } else {
 8942            let restorable_bounds = serialized_workspace
 8943                .as_ref()
 8944                .and_then(|workspace| {
 8945                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8946                })
 8947                .or_else(|| persistence::read_default_window_bounds());
 8948
 8949            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8950                (Some(serialized_bounds), Some(serialized_display))
 8951            } else {
 8952                (None, None)
 8953            }
 8954        };
 8955
 8956        let centered_layout = serialized_workspace
 8957            .as_ref()
 8958            .map(|w| w.centered_layout)
 8959            .unwrap_or(false);
 8960
 8961        Ok(WorkspacePosition {
 8962            window_bounds,
 8963            display,
 8964            centered_layout,
 8965        })
 8966    })
 8967}
 8968
 8969pub fn with_active_or_new_workspace(
 8970    cx: &mut App,
 8971    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8972) {
 8973    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8974        Some(workspace) => {
 8975            cx.defer(move |cx| {
 8976                workspace
 8977                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8978                    .log_err();
 8979            });
 8980        }
 8981        None => {
 8982            let app_state = AppState::global(cx);
 8983            if let Some(app_state) = app_state.upgrade() {
 8984                open_new(
 8985                    OpenOptions::default(),
 8986                    app_state,
 8987                    cx,
 8988                    move |workspace, window, cx| f(workspace, window, cx),
 8989                )
 8990                .detach_and_log_err(cx);
 8991            }
 8992        }
 8993    }
 8994}
 8995
 8996#[cfg(test)]
 8997mod tests {
 8998    use std::{cell::RefCell, rc::Rc};
 8999
 9000    use super::*;
 9001    use crate::{
 9002        dock::{PanelEvent, test::TestPanel},
 9003        item::{
 9004            ItemBufferKind, ItemEvent,
 9005            test::{TestItem, TestProjectItem},
 9006        },
 9007    };
 9008    use fs::FakeFs;
 9009    use gpui::{
 9010        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9011        UpdateGlobal, VisualTestContext, px,
 9012    };
 9013    use project::{Project, ProjectEntryId};
 9014    use serde_json::json;
 9015    use settings::SettingsStore;
 9016    use util::rel_path::rel_path;
 9017
 9018    #[gpui::test]
 9019    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9020        init_test(cx);
 9021
 9022        let fs = FakeFs::new(cx.executor());
 9023        let project = Project::test(fs, [], cx).await;
 9024        let (workspace, cx) =
 9025            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9026
 9027        // Adding an item with no ambiguity renders the tab without detail.
 9028        let item1 = cx.new(|cx| {
 9029            let mut item = TestItem::new(cx);
 9030            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9031            item
 9032        });
 9033        workspace.update_in(cx, |workspace, window, cx| {
 9034            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9035        });
 9036        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9037
 9038        // Adding an item that creates ambiguity increases the level of detail on
 9039        // both tabs.
 9040        let item2 = cx.new_window_entity(|_window, cx| {
 9041            let mut item = TestItem::new(cx);
 9042            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9043            item
 9044        });
 9045        workspace.update_in(cx, |workspace, window, cx| {
 9046            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9047        });
 9048        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9049        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9050
 9051        // Adding an item that creates ambiguity increases the level of detail only
 9052        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9053        // we stop at the highest detail available.
 9054        let item3 = cx.new(|cx| {
 9055            let mut item = TestItem::new(cx);
 9056            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9057            item
 9058        });
 9059        workspace.update_in(cx, |workspace, window, cx| {
 9060            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9061        });
 9062        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9063        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9064        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9065    }
 9066
 9067    #[gpui::test]
 9068    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9069        init_test(cx);
 9070
 9071        let fs = FakeFs::new(cx.executor());
 9072        fs.insert_tree(
 9073            "/root1",
 9074            json!({
 9075                "one.txt": "",
 9076                "two.txt": "",
 9077            }),
 9078        )
 9079        .await;
 9080        fs.insert_tree(
 9081            "/root2",
 9082            json!({
 9083                "three.txt": "",
 9084            }),
 9085        )
 9086        .await;
 9087
 9088        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9089        let (workspace, cx) =
 9090            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9091        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9092        let worktree_id = project.update(cx, |project, cx| {
 9093            project.worktrees(cx).next().unwrap().read(cx).id()
 9094        });
 9095
 9096        let item1 = cx.new(|cx| {
 9097            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9098        });
 9099        let item2 = cx.new(|cx| {
 9100            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9101        });
 9102
 9103        // Add an item to an empty pane
 9104        workspace.update_in(cx, |workspace, window, cx| {
 9105            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9106        });
 9107        project.update(cx, |project, cx| {
 9108            assert_eq!(
 9109                project.active_entry(),
 9110                project
 9111                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9112                    .map(|e| e.id)
 9113            );
 9114        });
 9115        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9116
 9117        // Add a second item to a non-empty pane
 9118        workspace.update_in(cx, |workspace, window, cx| {
 9119            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9120        });
 9121        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9122        project.update(cx, |project, cx| {
 9123            assert_eq!(
 9124                project.active_entry(),
 9125                project
 9126                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9127                    .map(|e| e.id)
 9128            );
 9129        });
 9130
 9131        // Close the active item
 9132        pane.update_in(cx, |pane, window, cx| {
 9133            pane.close_active_item(&Default::default(), window, cx)
 9134        })
 9135        .await
 9136        .unwrap();
 9137        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9138        project.update(cx, |project, cx| {
 9139            assert_eq!(
 9140                project.active_entry(),
 9141                project
 9142                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9143                    .map(|e| e.id)
 9144            );
 9145        });
 9146
 9147        // Add a project folder
 9148        project
 9149            .update(cx, |project, cx| {
 9150                project.find_or_create_worktree("root2", true, cx)
 9151            })
 9152            .await
 9153            .unwrap();
 9154        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9155
 9156        // Remove a project folder
 9157        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9158        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9159    }
 9160
 9161    #[gpui::test]
 9162    async fn test_close_window(cx: &mut TestAppContext) {
 9163        init_test(cx);
 9164
 9165        let fs = FakeFs::new(cx.executor());
 9166        fs.insert_tree("/root", json!({ "one": "" })).await;
 9167
 9168        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9169        let (workspace, cx) =
 9170            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9171
 9172        // When there are no dirty items, there's nothing to do.
 9173        let item1 = cx.new(TestItem::new);
 9174        workspace.update_in(cx, |w, window, cx| {
 9175            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9176        });
 9177        let task = workspace.update_in(cx, |w, window, cx| {
 9178            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9179        });
 9180        assert!(task.await.unwrap());
 9181
 9182        // When there are dirty untitled items, prompt to save each one. If the user
 9183        // cancels any prompt, then abort.
 9184        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9185        let item3 = cx.new(|cx| {
 9186            TestItem::new(cx)
 9187                .with_dirty(true)
 9188                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9189        });
 9190        workspace.update_in(cx, |w, window, cx| {
 9191            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9192            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9193        });
 9194        let task = workspace.update_in(cx, |w, window, cx| {
 9195            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9196        });
 9197        cx.executor().run_until_parked();
 9198        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9199        cx.executor().run_until_parked();
 9200        assert!(!cx.has_pending_prompt());
 9201        assert!(!task.await.unwrap());
 9202    }
 9203
 9204    #[gpui::test]
 9205    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9206        init_test(cx);
 9207
 9208        // Register TestItem as a serializable item
 9209        cx.update(|cx| {
 9210            register_serializable_item::<TestItem>(cx);
 9211        });
 9212
 9213        let fs = FakeFs::new(cx.executor());
 9214        fs.insert_tree("/root", json!({ "one": "" })).await;
 9215
 9216        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9217        let (workspace, cx) =
 9218            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9219
 9220        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9221        let item1 = cx.new(|cx| {
 9222            TestItem::new(cx)
 9223                .with_dirty(true)
 9224                .with_serialize(|| Some(Task::ready(Ok(()))))
 9225        });
 9226        let item2 = cx.new(|cx| {
 9227            TestItem::new(cx)
 9228                .with_dirty(true)
 9229                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9230                .with_serialize(|| Some(Task::ready(Ok(()))))
 9231        });
 9232        workspace.update_in(cx, |w, window, cx| {
 9233            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9234            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9235        });
 9236        let task = workspace.update_in(cx, |w, window, cx| {
 9237            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9238        });
 9239        assert!(task.await.unwrap());
 9240    }
 9241
 9242    #[gpui::test]
 9243    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9244        init_test(cx);
 9245
 9246        let fs = FakeFs::new(cx.executor());
 9247
 9248        let project = Project::test(fs, None, cx).await;
 9249        let (workspace, cx) =
 9250            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9251
 9252        let item1 = cx.new(|cx| {
 9253            TestItem::new(cx)
 9254                .with_dirty(true)
 9255                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9256        });
 9257        let item2 = cx.new(|cx| {
 9258            TestItem::new(cx)
 9259                .with_dirty(true)
 9260                .with_conflict(true)
 9261                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9262        });
 9263        let item3 = cx.new(|cx| {
 9264            TestItem::new(cx)
 9265                .with_dirty(true)
 9266                .with_conflict(true)
 9267                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9268        });
 9269        let item4 = cx.new(|cx| {
 9270            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9271                let project_item = TestProjectItem::new_untitled(cx);
 9272                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9273                project_item
 9274            }])
 9275        });
 9276        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9277            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9278            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9279            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9280            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9281            workspace.active_pane().clone()
 9282        });
 9283
 9284        let close_items = pane.update_in(cx, |pane, window, cx| {
 9285            pane.activate_item(1, true, true, window, cx);
 9286            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9287            let item1_id = item1.item_id();
 9288            let item3_id = item3.item_id();
 9289            let item4_id = item4.item_id();
 9290            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9291                [item1_id, item3_id, item4_id].contains(&id)
 9292            })
 9293        });
 9294        cx.executor().run_until_parked();
 9295
 9296        assert!(cx.has_pending_prompt());
 9297        cx.simulate_prompt_answer("Save all");
 9298
 9299        cx.executor().run_until_parked();
 9300
 9301        // Item 1 is saved. There's a prompt to save item 3.
 9302        pane.update(cx, |pane, cx| {
 9303            assert_eq!(item1.read(cx).save_count, 1);
 9304            assert_eq!(item1.read(cx).save_as_count, 0);
 9305            assert_eq!(item1.read(cx).reload_count, 0);
 9306            assert_eq!(pane.items_len(), 3);
 9307            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9308        });
 9309        assert!(cx.has_pending_prompt());
 9310
 9311        // Cancel saving item 3.
 9312        cx.simulate_prompt_answer("Discard");
 9313        cx.executor().run_until_parked();
 9314
 9315        // Item 3 is reloaded. There's a prompt to save item 4.
 9316        pane.update(cx, |pane, cx| {
 9317            assert_eq!(item3.read(cx).save_count, 0);
 9318            assert_eq!(item3.read(cx).save_as_count, 0);
 9319            assert_eq!(item3.read(cx).reload_count, 1);
 9320            assert_eq!(pane.items_len(), 2);
 9321            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9322        });
 9323
 9324        // There's a prompt for a path for item 4.
 9325        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9326        close_items.await.unwrap();
 9327
 9328        // The requested items are closed.
 9329        pane.update(cx, |pane, cx| {
 9330            assert_eq!(item4.read(cx).save_count, 0);
 9331            assert_eq!(item4.read(cx).save_as_count, 1);
 9332            assert_eq!(item4.read(cx).reload_count, 0);
 9333            assert_eq!(pane.items_len(), 1);
 9334            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9335        });
 9336    }
 9337
 9338    #[gpui::test]
 9339    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9340        init_test(cx);
 9341
 9342        let fs = FakeFs::new(cx.executor());
 9343        let project = Project::test(fs, [], cx).await;
 9344        let (workspace, cx) =
 9345            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9346
 9347        // Create several workspace items with single project entries, and two
 9348        // workspace items with multiple project entries.
 9349        let single_entry_items = (0..=4)
 9350            .map(|project_entry_id| {
 9351                cx.new(|cx| {
 9352                    TestItem::new(cx)
 9353                        .with_dirty(true)
 9354                        .with_project_items(&[dirty_project_item(
 9355                            project_entry_id,
 9356                            &format!("{project_entry_id}.txt"),
 9357                            cx,
 9358                        )])
 9359                })
 9360            })
 9361            .collect::<Vec<_>>();
 9362        let item_2_3 = cx.new(|cx| {
 9363            TestItem::new(cx)
 9364                .with_dirty(true)
 9365                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9366                .with_project_items(&[
 9367                    single_entry_items[2].read(cx).project_items[0].clone(),
 9368                    single_entry_items[3].read(cx).project_items[0].clone(),
 9369                ])
 9370        });
 9371        let item_3_4 = cx.new(|cx| {
 9372            TestItem::new(cx)
 9373                .with_dirty(true)
 9374                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9375                .with_project_items(&[
 9376                    single_entry_items[3].read(cx).project_items[0].clone(),
 9377                    single_entry_items[4].read(cx).project_items[0].clone(),
 9378                ])
 9379        });
 9380
 9381        // Create two panes that contain the following project entries:
 9382        //   left pane:
 9383        //     multi-entry items:   (2, 3)
 9384        //     single-entry items:  0, 2, 3, 4
 9385        //   right pane:
 9386        //     single-entry items:  4, 1
 9387        //     multi-entry items:   (3, 4)
 9388        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9389            let left_pane = workspace.active_pane().clone();
 9390            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9391            workspace.add_item_to_active_pane(
 9392                single_entry_items[0].boxed_clone(),
 9393                None,
 9394                true,
 9395                window,
 9396                cx,
 9397            );
 9398            workspace.add_item_to_active_pane(
 9399                single_entry_items[2].boxed_clone(),
 9400                None,
 9401                true,
 9402                window,
 9403                cx,
 9404            );
 9405            workspace.add_item_to_active_pane(
 9406                single_entry_items[3].boxed_clone(),
 9407                None,
 9408                true,
 9409                window,
 9410                cx,
 9411            );
 9412            workspace.add_item_to_active_pane(
 9413                single_entry_items[4].boxed_clone(),
 9414                None,
 9415                true,
 9416                window,
 9417                cx,
 9418            );
 9419
 9420            let right_pane =
 9421                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9422
 9423            let boxed_clone = single_entry_items[1].boxed_clone();
 9424            let right_pane = window.spawn(cx, async move |cx| {
 9425                right_pane.await.inspect(|right_pane| {
 9426                    right_pane
 9427                        .update_in(cx, |pane, window, cx| {
 9428                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9429                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9430                        })
 9431                        .unwrap();
 9432                })
 9433            });
 9434
 9435            (left_pane, right_pane)
 9436        });
 9437        let right_pane = right_pane.await.unwrap();
 9438        cx.focus(&right_pane);
 9439
 9440        let close = right_pane.update_in(cx, |pane, window, cx| {
 9441            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9442                .unwrap()
 9443        });
 9444        cx.executor().run_until_parked();
 9445
 9446        let msg = cx.pending_prompt().unwrap().0;
 9447        assert!(msg.contains("1.txt"));
 9448        assert!(!msg.contains("2.txt"));
 9449        assert!(!msg.contains("3.txt"));
 9450        assert!(!msg.contains("4.txt"));
 9451
 9452        // With best-effort close, cancelling item 1 keeps it open but items 4
 9453        // and (3,4) still close since their entries exist in left pane.
 9454        cx.simulate_prompt_answer("Cancel");
 9455        close.await;
 9456
 9457        right_pane.read_with(cx, |pane, _| {
 9458            assert_eq!(pane.items_len(), 1);
 9459        });
 9460
 9461        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9462        left_pane
 9463            .update_in(cx, |left_pane, window, cx| {
 9464                left_pane.close_item_by_id(
 9465                    single_entry_items[3].entity_id(),
 9466                    SaveIntent::Skip,
 9467                    window,
 9468                    cx,
 9469                )
 9470            })
 9471            .await
 9472            .unwrap();
 9473
 9474        let close = left_pane.update_in(cx, |pane, window, cx| {
 9475            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9476                .unwrap()
 9477        });
 9478        cx.executor().run_until_parked();
 9479
 9480        let details = cx.pending_prompt().unwrap().1;
 9481        assert!(details.contains("0.txt"));
 9482        assert!(details.contains("3.txt"));
 9483        assert!(details.contains("4.txt"));
 9484        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9485        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9486        // assert!(!details.contains("2.txt"));
 9487
 9488        cx.simulate_prompt_answer("Save all");
 9489        cx.executor().run_until_parked();
 9490        close.await;
 9491
 9492        left_pane.read_with(cx, |pane, _| {
 9493            assert_eq!(pane.items_len(), 0);
 9494        });
 9495    }
 9496
 9497    #[gpui::test]
 9498    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9499        init_test(cx);
 9500
 9501        let fs = FakeFs::new(cx.executor());
 9502        let project = Project::test(fs, [], cx).await;
 9503        let (workspace, cx) =
 9504            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9505        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9506
 9507        let item = cx.new(|cx| {
 9508            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9509        });
 9510        let item_id = item.entity_id();
 9511        workspace.update_in(cx, |workspace, window, cx| {
 9512            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9513        });
 9514
 9515        // Autosave on window change.
 9516        item.update(cx, |item, cx| {
 9517            SettingsStore::update_global(cx, |settings, cx| {
 9518                settings.update_user_settings(cx, |settings| {
 9519                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9520                })
 9521            });
 9522            item.is_dirty = true;
 9523        });
 9524
 9525        // Deactivating the window saves the file.
 9526        cx.deactivate_window();
 9527        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9528
 9529        // Re-activating the window doesn't save the file.
 9530        cx.update(|window, _| window.activate_window());
 9531        cx.executor().run_until_parked();
 9532        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9533
 9534        // Autosave on focus change.
 9535        item.update_in(cx, |item, window, cx| {
 9536            cx.focus_self(window);
 9537            SettingsStore::update_global(cx, |settings, cx| {
 9538                settings.update_user_settings(cx, |settings| {
 9539                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9540                })
 9541            });
 9542            item.is_dirty = true;
 9543        });
 9544        // Blurring the item saves the file.
 9545        item.update_in(cx, |_, window, _| window.blur());
 9546        cx.executor().run_until_parked();
 9547        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9548
 9549        // Deactivating the window still saves the file.
 9550        item.update_in(cx, |item, window, cx| {
 9551            cx.focus_self(window);
 9552            item.is_dirty = true;
 9553        });
 9554        cx.deactivate_window();
 9555        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9556
 9557        // Autosave after delay.
 9558        item.update(cx, |item, cx| {
 9559            SettingsStore::update_global(cx, |settings, cx| {
 9560                settings.update_user_settings(cx, |settings| {
 9561                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9562                        milliseconds: 500.into(),
 9563                    });
 9564                })
 9565            });
 9566            item.is_dirty = true;
 9567            cx.emit(ItemEvent::Edit);
 9568        });
 9569
 9570        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9571        cx.executor().advance_clock(Duration::from_millis(250));
 9572        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9573
 9574        // After delay expires, the file is saved.
 9575        cx.executor().advance_clock(Duration::from_millis(250));
 9576        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9577
 9578        // Autosave after delay, should save earlier than delay if tab is closed
 9579        item.update(cx, |item, cx| {
 9580            item.is_dirty = true;
 9581            cx.emit(ItemEvent::Edit);
 9582        });
 9583        cx.executor().advance_clock(Duration::from_millis(250));
 9584        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9585
 9586        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9587        pane.update_in(cx, |pane, window, cx| {
 9588            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9589        })
 9590        .await
 9591        .unwrap();
 9592        assert!(!cx.has_pending_prompt());
 9593        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9594
 9595        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9596        workspace.update_in(cx, |workspace, window, cx| {
 9597            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9598        });
 9599        item.update_in(cx, |item, _window, cx| {
 9600            item.is_dirty = true;
 9601            for project_item in &mut item.project_items {
 9602                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9603            }
 9604        });
 9605        cx.run_until_parked();
 9606        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9607
 9608        // Autosave on focus change, ensuring closing the tab counts as such.
 9609        item.update(cx, |item, cx| {
 9610            SettingsStore::update_global(cx, |settings, cx| {
 9611                settings.update_user_settings(cx, |settings| {
 9612                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9613                })
 9614            });
 9615            item.is_dirty = true;
 9616            for project_item in &mut item.project_items {
 9617                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9618            }
 9619        });
 9620
 9621        pane.update_in(cx, |pane, window, cx| {
 9622            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9623        })
 9624        .await
 9625        .unwrap();
 9626        assert!(!cx.has_pending_prompt());
 9627        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9628
 9629        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9630        workspace.update_in(cx, |workspace, window, cx| {
 9631            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9632        });
 9633        item.update_in(cx, |item, window, cx| {
 9634            item.project_items[0].update(cx, |item, _| {
 9635                item.entry_id = None;
 9636            });
 9637            item.is_dirty = true;
 9638            window.blur();
 9639        });
 9640        cx.run_until_parked();
 9641        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9642
 9643        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9644        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9645            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9646        });
 9647        cx.run_until_parked();
 9648        assert!(cx.has_pending_prompt());
 9649        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9650    }
 9651
 9652    #[gpui::test]
 9653    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9654        init_test(cx);
 9655
 9656        let fs = FakeFs::new(cx.executor());
 9657
 9658        let project = Project::test(fs, [], cx).await;
 9659        let (workspace, cx) =
 9660            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9661
 9662        let item = cx.new(|cx| {
 9663            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9664        });
 9665        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9666        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9667        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9668
 9669        workspace.update_in(cx, |workspace, window, cx| {
 9670            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9671            let toolbar_notification_count = toolbar_notify_count.clone();
 9672            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9673                *toolbar_notification_count.borrow_mut() += 1
 9674            })
 9675            .detach();
 9676        });
 9677
 9678        pane.read_with(cx, |pane, _| {
 9679            assert!(!pane.can_navigate_backward());
 9680            assert!(!pane.can_navigate_forward());
 9681        });
 9682
 9683        item.update_in(cx, |item, _, cx| {
 9684            item.set_state("one".to_string(), cx);
 9685        });
 9686
 9687        // Toolbar must be notified to re-render the navigation buttons
 9688        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9689
 9690        pane.read_with(cx, |pane, _| {
 9691            assert!(pane.can_navigate_backward());
 9692            assert!(!pane.can_navigate_forward());
 9693        });
 9694
 9695        workspace
 9696            .update_in(cx, |workspace, window, cx| {
 9697                workspace.go_back(pane.downgrade(), window, cx)
 9698            })
 9699            .await
 9700            .unwrap();
 9701
 9702        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9703        pane.read_with(cx, |pane, _| {
 9704            assert!(!pane.can_navigate_backward());
 9705            assert!(pane.can_navigate_forward());
 9706        });
 9707    }
 9708
 9709    #[gpui::test]
 9710    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9711        init_test(cx);
 9712        let fs = FakeFs::new(cx.executor());
 9713
 9714        let project = Project::test(fs, [], cx).await;
 9715        let (workspace, cx) =
 9716            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9717
 9718        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9719            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9720            workspace.add_panel(panel.clone(), window, cx);
 9721
 9722            workspace
 9723                .right_dock()
 9724                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9725
 9726            panel
 9727        });
 9728
 9729        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9730        pane.update_in(cx, |pane, window, cx| {
 9731            let item = cx.new(TestItem::new);
 9732            pane.add_item(Box::new(item), true, true, None, window, cx);
 9733        });
 9734
 9735        // Transfer focus from center to panel
 9736        workspace.update_in(cx, |workspace, window, cx| {
 9737            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9738        });
 9739
 9740        workspace.update_in(cx, |workspace, window, cx| {
 9741            assert!(workspace.right_dock().read(cx).is_open());
 9742            assert!(!panel.is_zoomed(window, cx));
 9743            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9744        });
 9745
 9746        // Transfer focus from panel to center
 9747        workspace.update_in(cx, |workspace, window, cx| {
 9748            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9749        });
 9750
 9751        workspace.update_in(cx, |workspace, window, cx| {
 9752            assert!(workspace.right_dock().read(cx).is_open());
 9753            assert!(!panel.is_zoomed(window, cx));
 9754            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9755        });
 9756
 9757        // Close the dock
 9758        workspace.update_in(cx, |workspace, window, cx| {
 9759            workspace.toggle_dock(DockPosition::Right, window, cx);
 9760        });
 9761
 9762        workspace.update_in(cx, |workspace, window, cx| {
 9763            assert!(!workspace.right_dock().read(cx).is_open());
 9764            assert!(!panel.is_zoomed(window, cx));
 9765            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9766        });
 9767
 9768        // Open the dock
 9769        workspace.update_in(cx, |workspace, window, cx| {
 9770            workspace.toggle_dock(DockPosition::Right, 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        // Focus and zoom panel
 9780        panel.update_in(cx, |panel, window, cx| {
 9781            cx.focus_self(window);
 9782            panel.set_zoomed(true, window, cx)
 9783        });
 9784
 9785        workspace.update_in(cx, |workspace, window, cx| {
 9786            assert!(workspace.right_dock().read(cx).is_open());
 9787            assert!(panel.is_zoomed(window, cx));
 9788            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9789        });
 9790
 9791        // Transfer focus to the center closes the dock
 9792        workspace.update_in(cx, |workspace, window, cx| {
 9793            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9794        });
 9795
 9796        workspace.update_in(cx, |workspace, window, cx| {
 9797            assert!(!workspace.right_dock().read(cx).is_open());
 9798            assert!(panel.is_zoomed(window, cx));
 9799            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9800        });
 9801
 9802        // Transferring focus back to the panel keeps it zoomed
 9803        workspace.update_in(cx, |workspace, window, cx| {
 9804            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9805        });
 9806
 9807        workspace.update_in(cx, |workspace, window, cx| {
 9808            assert!(workspace.right_dock().read(cx).is_open());
 9809            assert!(panel.is_zoomed(window, cx));
 9810            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9811        });
 9812
 9813        // Close the dock while it is zoomed
 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_none());
 9822            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9823        });
 9824
 9825        // Opening the dock, when it's zoomed, retains focus
 9826        workspace.update_in(cx, |workspace, window, cx| {
 9827            workspace.toggle_dock(DockPosition::Right, window, cx)
 9828        });
 9829
 9830        workspace.update_in(cx, |workspace, window, cx| {
 9831            assert!(workspace.right_dock().read(cx).is_open());
 9832            assert!(panel.is_zoomed(window, cx));
 9833            assert!(workspace.zoomed.is_some());
 9834            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9835        });
 9836
 9837        // Unzoom and close the panel, zoom the active pane.
 9838        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9839        workspace.update_in(cx, |workspace, window, cx| {
 9840            workspace.toggle_dock(DockPosition::Right, window, cx)
 9841        });
 9842        pane.update_in(cx, |pane, window, cx| {
 9843            pane.toggle_zoom(&Default::default(), window, cx)
 9844        });
 9845
 9846        // Opening a dock unzooms the pane.
 9847        workspace.update_in(cx, |workspace, window, cx| {
 9848            workspace.toggle_dock(DockPosition::Right, window, cx)
 9849        });
 9850        workspace.update_in(cx, |workspace, window, cx| {
 9851            let pane = pane.read(cx);
 9852            assert!(!pane.is_zoomed());
 9853            assert!(!pane.focus_handle(cx).is_focused(window));
 9854            assert!(workspace.right_dock().read(cx).is_open());
 9855            assert!(workspace.zoomed.is_none());
 9856        });
 9857    }
 9858
 9859    #[gpui::test]
 9860    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9861        init_test(cx);
 9862        let fs = FakeFs::new(cx.executor());
 9863
 9864        let project = Project::test(fs, [], cx).await;
 9865        let (workspace, cx) =
 9866            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9867
 9868        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9869            workspace.active_pane().clone()
 9870        });
 9871
 9872        // Add an item to the pane so it can be zoomed
 9873        workspace.update_in(cx, |workspace, window, cx| {
 9874            let item = cx.new(TestItem::new);
 9875            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9876        });
 9877
 9878        // Initially not zoomed
 9879        workspace.update_in(cx, |workspace, _window, cx| {
 9880            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9881            assert!(
 9882                workspace.zoomed.is_none(),
 9883                "Workspace should track no zoomed pane"
 9884            );
 9885            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9886        });
 9887
 9888        // Zoom In
 9889        pane.update_in(cx, |pane, window, cx| {
 9890            pane.zoom_in(&crate::ZoomIn, window, cx);
 9891        });
 9892
 9893        workspace.update_in(cx, |workspace, window, cx| {
 9894            assert!(
 9895                pane.read(cx).is_zoomed(),
 9896                "Pane should be zoomed after ZoomIn"
 9897            );
 9898            assert!(
 9899                workspace.zoomed.is_some(),
 9900                "Workspace should track the zoomed pane"
 9901            );
 9902            assert!(
 9903                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9904                "ZoomIn should focus the pane"
 9905            );
 9906        });
 9907
 9908        // Zoom In again is a no-op
 9909        pane.update_in(cx, |pane, window, cx| {
 9910            pane.zoom_in(&crate::ZoomIn, window, cx);
 9911        });
 9912
 9913        workspace.update_in(cx, |workspace, window, cx| {
 9914            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9915            assert!(
 9916                workspace.zoomed.is_some(),
 9917                "Workspace still tracks zoomed pane"
 9918            );
 9919            assert!(
 9920                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9921                "Pane remains focused after repeated ZoomIn"
 9922            );
 9923        });
 9924
 9925        // Zoom Out
 9926        pane.update_in(cx, |pane, window, cx| {
 9927            pane.zoom_out(&crate::ZoomOut, window, cx);
 9928        });
 9929
 9930        workspace.update_in(cx, |workspace, _window, cx| {
 9931            assert!(
 9932                !pane.read(cx).is_zoomed(),
 9933                "Pane should unzoom after ZoomOut"
 9934            );
 9935            assert!(
 9936                workspace.zoomed.is_none(),
 9937                "Workspace clears zoom tracking after ZoomOut"
 9938            );
 9939        });
 9940
 9941        // Zoom Out again is a no-op
 9942        pane.update_in(cx, |pane, window, cx| {
 9943            pane.zoom_out(&crate::ZoomOut, window, cx);
 9944        });
 9945
 9946        workspace.update_in(cx, |workspace, _window, cx| {
 9947            assert!(
 9948                !pane.read(cx).is_zoomed(),
 9949                "Second ZoomOut keeps pane unzoomed"
 9950            );
 9951            assert!(
 9952                workspace.zoomed.is_none(),
 9953                "Workspace remains without zoomed pane"
 9954            );
 9955        });
 9956    }
 9957
 9958    #[gpui::test]
 9959    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9960        init_test(cx);
 9961        let fs = FakeFs::new(cx.executor());
 9962
 9963        let project = Project::test(fs, [], cx).await;
 9964        let (workspace, cx) =
 9965            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9966        workspace.update_in(cx, |workspace, window, cx| {
 9967            // Open two docks
 9968            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9969            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9970
 9971            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9972            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9973
 9974            assert!(left_dock.read(cx).is_open());
 9975            assert!(right_dock.read(cx).is_open());
 9976        });
 9977
 9978        workspace.update_in(cx, |workspace, window, cx| {
 9979            // Toggle all docks - should close both
 9980            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9981
 9982            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9983            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9984            assert!(!left_dock.read(cx).is_open());
 9985            assert!(!right_dock.read(cx).is_open());
 9986        });
 9987
 9988        workspace.update_in(cx, |workspace, window, cx| {
 9989            // Toggle again - should reopen both
 9990            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9991
 9992            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9993            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9994            assert!(left_dock.read(cx).is_open());
 9995            assert!(right_dock.read(cx).is_open());
 9996        });
 9997    }
 9998
 9999    #[gpui::test]
10000    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10001        init_test(cx);
10002        let fs = FakeFs::new(cx.executor());
10003
10004        let project = Project::test(fs, [], cx).await;
10005        let (workspace, cx) =
10006            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10007        workspace.update_in(cx, |workspace, window, cx| {
10008            // Open two docks
10009            let left_dock = workspace.dock_at_position(DockPosition::Left);
10010            let right_dock = workspace.dock_at_position(DockPosition::Right);
10011
10012            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10013            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10014
10015            assert!(left_dock.read(cx).is_open());
10016            assert!(right_dock.read(cx).is_open());
10017        });
10018
10019        workspace.update_in(cx, |workspace, window, cx| {
10020            // Close them manually
10021            workspace.toggle_dock(DockPosition::Left, window, cx);
10022            workspace.toggle_dock(DockPosition::Right, window, cx);
10023
10024            let left_dock = workspace.dock_at_position(DockPosition::Left);
10025            let right_dock = workspace.dock_at_position(DockPosition::Right);
10026            assert!(!left_dock.read(cx).is_open());
10027            assert!(!right_dock.read(cx).is_open());
10028        });
10029
10030        workspace.update_in(cx, |workspace, window, cx| {
10031            // Toggle all docks - only last closed (right dock) should reopen
10032            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10033
10034            let left_dock = workspace.dock_at_position(DockPosition::Left);
10035            let right_dock = workspace.dock_at_position(DockPosition::Right);
10036            assert!(!left_dock.read(cx).is_open());
10037            assert!(right_dock.read(cx).is_open());
10038        });
10039    }
10040
10041    #[gpui::test]
10042    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10043        init_test(cx);
10044        let fs = FakeFs::new(cx.executor());
10045        let project = Project::test(fs, [], cx).await;
10046        let (workspace, cx) =
10047            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10048
10049        // Open two docks (left and right) with one panel each
10050        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10051            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10052            workspace.add_panel(left_panel.clone(), window, cx);
10053
10054            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10055            workspace.add_panel(right_panel.clone(), window, cx);
10056
10057            workspace.toggle_dock(DockPosition::Left, window, cx);
10058            workspace.toggle_dock(DockPosition::Right, window, cx);
10059
10060            // Verify initial state
10061            assert!(
10062                workspace.left_dock().read(cx).is_open(),
10063                "Left dock should be open"
10064            );
10065            assert_eq!(
10066                workspace
10067                    .left_dock()
10068                    .read(cx)
10069                    .visible_panel()
10070                    .unwrap()
10071                    .panel_id(),
10072                left_panel.panel_id(),
10073                "Left panel should be visible in left dock"
10074            );
10075            assert!(
10076                workspace.right_dock().read(cx).is_open(),
10077                "Right dock should be open"
10078            );
10079            assert_eq!(
10080                workspace
10081                    .right_dock()
10082                    .read(cx)
10083                    .visible_panel()
10084                    .unwrap()
10085                    .panel_id(),
10086                right_panel.panel_id(),
10087                "Right panel should be visible in right dock"
10088            );
10089            assert!(
10090                !workspace.bottom_dock().read(cx).is_open(),
10091                "Bottom dock should be closed"
10092            );
10093
10094            (left_panel, right_panel)
10095        });
10096
10097        // Focus the left panel and move it to the next position (bottom dock)
10098        workspace.update_in(cx, |workspace, window, cx| {
10099            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10100            assert!(
10101                left_panel.read(cx).focus_handle(cx).is_focused(window),
10102                "Left panel should be focused"
10103            );
10104        });
10105
10106        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10107
10108        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10109        workspace.update(cx, |workspace, cx| {
10110            assert!(
10111                !workspace.left_dock().read(cx).is_open(),
10112                "Left dock should be closed"
10113            );
10114            assert!(
10115                workspace.bottom_dock().read(cx).is_open(),
10116                "Bottom dock should now be open"
10117            );
10118            assert_eq!(
10119                left_panel.read(cx).position,
10120                DockPosition::Bottom,
10121                "Left panel should now be in the bottom dock"
10122            );
10123            assert_eq!(
10124                workspace
10125                    .bottom_dock()
10126                    .read(cx)
10127                    .visible_panel()
10128                    .unwrap()
10129                    .panel_id(),
10130                left_panel.panel_id(),
10131                "Left panel should be the visible panel in the bottom dock"
10132            );
10133        });
10134
10135        // Toggle all docks off
10136        workspace.update_in(cx, |workspace, window, cx| {
10137            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10138            assert!(
10139                !workspace.left_dock().read(cx).is_open(),
10140                "Left dock should be closed"
10141            );
10142            assert!(
10143                !workspace.right_dock().read(cx).is_open(),
10144                "Right dock should be closed"
10145            );
10146            assert!(
10147                !workspace.bottom_dock().read(cx).is_open(),
10148                "Bottom dock should be closed"
10149            );
10150        });
10151
10152        // Toggle all docks back on and verify positions are restored
10153        workspace.update_in(cx, |workspace, window, cx| {
10154            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10155            assert!(
10156                !workspace.left_dock().read(cx).is_open(),
10157                "Left dock should remain closed"
10158            );
10159            assert!(
10160                workspace.right_dock().read(cx).is_open(),
10161                "Right dock should remain open"
10162            );
10163            assert!(
10164                workspace.bottom_dock().read(cx).is_open(),
10165                "Bottom dock should remain open"
10166            );
10167            assert_eq!(
10168                left_panel.read(cx).position,
10169                DockPosition::Bottom,
10170                "Left panel should remain in the bottom dock"
10171            );
10172            assert_eq!(
10173                right_panel.read(cx).position,
10174                DockPosition::Right,
10175                "Right panel should remain in the right dock"
10176            );
10177            assert_eq!(
10178                workspace
10179                    .bottom_dock()
10180                    .read(cx)
10181                    .visible_panel()
10182                    .unwrap()
10183                    .panel_id(),
10184                left_panel.panel_id(),
10185                "Left panel should be the visible panel in the right dock"
10186            );
10187        });
10188    }
10189
10190    #[gpui::test]
10191    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10192        init_test(cx);
10193
10194        let fs = FakeFs::new(cx.executor());
10195
10196        let project = Project::test(fs, None, cx).await;
10197        let (workspace, cx) =
10198            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10199
10200        // Let's arrange the panes like this:
10201        //
10202        // +-----------------------+
10203        // |         top           |
10204        // +------+--------+-------+
10205        // | left | center | right |
10206        // +------+--------+-------+
10207        // |        bottom         |
10208        // +-----------------------+
10209
10210        let top_item = cx.new(|cx| {
10211            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10212        });
10213        let bottom_item = cx.new(|cx| {
10214            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10215        });
10216        let left_item = cx.new(|cx| {
10217            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10218        });
10219        let right_item = cx.new(|cx| {
10220            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10221        });
10222        let center_item = cx.new(|cx| {
10223            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10224        });
10225
10226        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10227            let top_pane_id = workspace.active_pane().entity_id();
10228            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10229            workspace.split_pane(
10230                workspace.active_pane().clone(),
10231                SplitDirection::Down,
10232                window,
10233                cx,
10234            );
10235            top_pane_id
10236        });
10237        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10238            let bottom_pane_id = workspace.active_pane().entity_id();
10239            workspace.add_item_to_active_pane(
10240                Box::new(bottom_item.clone()),
10241                None,
10242                false,
10243                window,
10244                cx,
10245            );
10246            workspace.split_pane(
10247                workspace.active_pane().clone(),
10248                SplitDirection::Up,
10249                window,
10250                cx,
10251            );
10252            bottom_pane_id
10253        });
10254        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10255            let left_pane_id = workspace.active_pane().entity_id();
10256            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10257            workspace.split_pane(
10258                workspace.active_pane().clone(),
10259                SplitDirection::Right,
10260                window,
10261                cx,
10262            );
10263            left_pane_id
10264        });
10265        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10266            let right_pane_id = workspace.active_pane().entity_id();
10267            workspace.add_item_to_active_pane(
10268                Box::new(right_item.clone()),
10269                None,
10270                false,
10271                window,
10272                cx,
10273            );
10274            workspace.split_pane(
10275                workspace.active_pane().clone(),
10276                SplitDirection::Left,
10277                window,
10278                cx,
10279            );
10280            right_pane_id
10281        });
10282        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10283            let center_pane_id = workspace.active_pane().entity_id();
10284            workspace.add_item_to_active_pane(
10285                Box::new(center_item.clone()),
10286                None,
10287                false,
10288                window,
10289                cx,
10290            );
10291            center_pane_id
10292        });
10293        cx.executor().run_until_parked();
10294
10295        workspace.update_in(cx, |workspace, window, cx| {
10296            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10297
10298            // Join into next from center pane into right
10299            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10300        });
10301
10302        workspace.update_in(cx, |workspace, window, cx| {
10303            let active_pane = workspace.active_pane();
10304            assert_eq!(right_pane_id, active_pane.entity_id());
10305            assert_eq!(2, active_pane.read(cx).items_len());
10306            let item_ids_in_pane =
10307                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10308            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10309            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10310
10311            // Join into next from right pane into bottom
10312            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10313        });
10314
10315        workspace.update_in(cx, |workspace, window, cx| {
10316            let active_pane = workspace.active_pane();
10317            assert_eq!(bottom_pane_id, active_pane.entity_id());
10318            assert_eq!(3, active_pane.read(cx).items_len());
10319            let item_ids_in_pane =
10320                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10321            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10322            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10323            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10324
10325            // Join into next from bottom pane into left
10326            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10327        });
10328
10329        workspace.update_in(cx, |workspace, window, cx| {
10330            let active_pane = workspace.active_pane();
10331            assert_eq!(left_pane_id, active_pane.entity_id());
10332            assert_eq!(4, active_pane.read(cx).items_len());
10333            let item_ids_in_pane =
10334                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10335            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10336            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10337            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10338            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10339
10340            // Join into next from left pane into top
10341            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10342        });
10343
10344        workspace.update_in(cx, |workspace, window, cx| {
10345            let active_pane = workspace.active_pane();
10346            assert_eq!(top_pane_id, active_pane.entity_id());
10347            assert_eq!(5, active_pane.read(cx).items_len());
10348            let item_ids_in_pane =
10349                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10350            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10351            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10352            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10353            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10354            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10355
10356            // Single pane left: no-op
10357            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10358        });
10359
10360        workspace.update(cx, |workspace, _cx| {
10361            let active_pane = workspace.active_pane();
10362            assert_eq!(top_pane_id, active_pane.entity_id());
10363        });
10364    }
10365
10366    fn add_an_item_to_active_pane(
10367        cx: &mut VisualTestContext,
10368        workspace: &Entity<Workspace>,
10369        item_id: u64,
10370    ) -> Entity<TestItem> {
10371        let item = cx.new(|cx| {
10372            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10373                item_id,
10374                "item{item_id}.txt",
10375                cx,
10376            )])
10377        });
10378        workspace.update_in(cx, |workspace, window, cx| {
10379            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10380        });
10381        item
10382    }
10383
10384    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10385        workspace.update_in(cx, |workspace, window, cx| {
10386            workspace.split_pane(
10387                workspace.active_pane().clone(),
10388                SplitDirection::Right,
10389                window,
10390                cx,
10391            )
10392        })
10393    }
10394
10395    #[gpui::test]
10396    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10397        init_test(cx);
10398        let fs = FakeFs::new(cx.executor());
10399        let project = Project::test(fs, None, cx).await;
10400        let (workspace, cx) =
10401            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10402
10403        add_an_item_to_active_pane(cx, &workspace, 1);
10404        split_pane(cx, &workspace);
10405        add_an_item_to_active_pane(cx, &workspace, 2);
10406        split_pane(cx, &workspace); // empty pane
10407        split_pane(cx, &workspace);
10408        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10409
10410        cx.executor().run_until_parked();
10411
10412        workspace.update(cx, |workspace, cx| {
10413            let num_panes = workspace.panes().len();
10414            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10415            let active_item = workspace
10416                .active_pane()
10417                .read(cx)
10418                .active_item()
10419                .expect("item is in focus");
10420
10421            assert_eq!(num_panes, 4);
10422            assert_eq!(num_items_in_current_pane, 1);
10423            assert_eq!(active_item.item_id(), last_item.item_id());
10424        });
10425
10426        workspace.update_in(cx, |workspace, window, cx| {
10427            workspace.join_all_panes(window, cx);
10428        });
10429
10430        workspace.update(cx, |workspace, cx| {
10431            let num_panes = workspace.panes().len();
10432            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10433            let active_item = workspace
10434                .active_pane()
10435                .read(cx)
10436                .active_item()
10437                .expect("item is in focus");
10438
10439            assert_eq!(num_panes, 1);
10440            assert_eq!(num_items_in_current_pane, 3);
10441            assert_eq!(active_item.item_id(), last_item.item_id());
10442        });
10443    }
10444    struct TestModal(FocusHandle);
10445
10446    impl TestModal {
10447        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10448            Self(cx.focus_handle())
10449        }
10450    }
10451
10452    impl EventEmitter<DismissEvent> for TestModal {}
10453
10454    impl Focusable for TestModal {
10455        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10456            self.0.clone()
10457        }
10458    }
10459
10460    impl ModalView for TestModal {}
10461
10462    impl Render for TestModal {
10463        fn render(
10464            &mut self,
10465            _window: &mut Window,
10466            _cx: &mut Context<TestModal>,
10467        ) -> impl IntoElement {
10468            div().track_focus(&self.0)
10469        }
10470    }
10471
10472    #[gpui::test]
10473    async fn test_panels(cx: &mut gpui::TestAppContext) {
10474        init_test(cx);
10475        let fs = FakeFs::new(cx.executor());
10476
10477        let project = Project::test(fs, [], cx).await;
10478        let (workspace, cx) =
10479            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10480
10481        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10482            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10483            workspace.add_panel(panel_1.clone(), window, cx);
10484            workspace.toggle_dock(DockPosition::Left, window, cx);
10485            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10486            workspace.add_panel(panel_2.clone(), window, cx);
10487            workspace.toggle_dock(DockPosition::Right, window, cx);
10488
10489            let left_dock = workspace.left_dock();
10490            assert_eq!(
10491                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10492                panel_1.panel_id()
10493            );
10494            assert_eq!(
10495                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10496                panel_1.size(window, cx)
10497            );
10498
10499            left_dock.update(cx, |left_dock, cx| {
10500                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10501            });
10502            assert_eq!(
10503                workspace
10504                    .right_dock()
10505                    .read(cx)
10506                    .visible_panel()
10507                    .unwrap()
10508                    .panel_id(),
10509                panel_2.panel_id(),
10510            );
10511
10512            (panel_1, panel_2)
10513        });
10514
10515        // Move panel_1 to the right
10516        panel_1.update_in(cx, |panel_1, window, cx| {
10517            panel_1.set_position(DockPosition::Right, window, cx)
10518        });
10519
10520        workspace.update_in(cx, |workspace, window, cx| {
10521            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10522            // Since it was the only panel on the left, the left dock should now be closed.
10523            assert!(!workspace.left_dock().read(cx).is_open());
10524            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10525            let right_dock = workspace.right_dock();
10526            assert_eq!(
10527                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10528                panel_1.panel_id()
10529            );
10530            assert_eq!(
10531                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10532                px(1337.)
10533            );
10534
10535            // Now we move panel_2 to the left
10536            panel_2.set_position(DockPosition::Left, window, cx);
10537        });
10538
10539        workspace.update(cx, |workspace, cx| {
10540            // Since panel_2 was not visible on the right, we don't open the left dock.
10541            assert!(!workspace.left_dock().read(cx).is_open());
10542            // And the right dock is unaffected in its displaying of panel_1
10543            assert!(workspace.right_dock().read(cx).is_open());
10544            assert_eq!(
10545                workspace
10546                    .right_dock()
10547                    .read(cx)
10548                    .visible_panel()
10549                    .unwrap()
10550                    .panel_id(),
10551                panel_1.panel_id(),
10552            );
10553        });
10554
10555        // Move panel_1 back to the left
10556        panel_1.update_in(cx, |panel_1, window, cx| {
10557            panel_1.set_position(DockPosition::Left, window, cx)
10558        });
10559
10560        workspace.update_in(cx, |workspace, window, cx| {
10561            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10562            let left_dock = workspace.left_dock();
10563            assert!(left_dock.read(cx).is_open());
10564            assert_eq!(
10565                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10566                panel_1.panel_id()
10567            );
10568            assert_eq!(
10569                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10570                px(1337.)
10571            );
10572            // And the right dock should be closed as it no longer has any panels.
10573            assert!(!workspace.right_dock().read(cx).is_open());
10574
10575            // Now we move panel_1 to the bottom
10576            panel_1.set_position(DockPosition::Bottom, window, cx);
10577        });
10578
10579        workspace.update_in(cx, |workspace, window, cx| {
10580            // Since panel_1 was visible on the left, we close the left dock.
10581            assert!(!workspace.left_dock().read(cx).is_open());
10582            // The bottom dock is sized based on the panel's default size,
10583            // since the panel orientation changed from vertical to horizontal.
10584            let bottom_dock = workspace.bottom_dock();
10585            assert_eq!(
10586                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10587                panel_1.size(window, cx),
10588            );
10589            // Close bottom dock and move panel_1 back to the left.
10590            bottom_dock.update(cx, |bottom_dock, cx| {
10591                bottom_dock.set_open(false, window, cx)
10592            });
10593            panel_1.set_position(DockPosition::Left, window, cx);
10594        });
10595
10596        // Emit activated event on panel 1
10597        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10598
10599        // Now the left dock is open and panel_1 is active and focused.
10600        workspace.update_in(cx, |workspace, window, cx| {
10601            let left_dock = workspace.left_dock();
10602            assert!(left_dock.read(cx).is_open());
10603            assert_eq!(
10604                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10605                panel_1.panel_id(),
10606            );
10607            assert!(panel_1.focus_handle(cx).is_focused(window));
10608        });
10609
10610        // Emit closed event on panel 2, which is not active
10611        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10612
10613        // Wo don't close the left dock, because panel_2 wasn't the active panel
10614        workspace.update(cx, |workspace, cx| {
10615            let left_dock = workspace.left_dock();
10616            assert!(left_dock.read(cx).is_open());
10617            assert_eq!(
10618                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10619                panel_1.panel_id(),
10620            );
10621        });
10622
10623        // Emitting a ZoomIn event shows the panel as zoomed.
10624        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10625        workspace.read_with(cx, |workspace, _| {
10626            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10627            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10628        });
10629
10630        // Move panel to another dock while it is zoomed
10631        panel_1.update_in(cx, |panel, window, cx| {
10632            panel.set_position(DockPosition::Right, window, cx)
10633        });
10634        workspace.read_with(cx, |workspace, _| {
10635            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10636
10637            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10638        });
10639
10640        // This is a helper for getting a:
10641        // - valid focus on an element,
10642        // - that isn't a part of the panes and panels system of the Workspace,
10643        // - and doesn't trigger the 'on_focus_lost' API.
10644        let focus_other_view = {
10645            let workspace = workspace.clone();
10646            move |cx: &mut VisualTestContext| {
10647                workspace.update_in(cx, |workspace, window, cx| {
10648                    if workspace.active_modal::<TestModal>(cx).is_some() {
10649                        workspace.toggle_modal(window, cx, TestModal::new);
10650                        workspace.toggle_modal(window, cx, TestModal::new);
10651                    } else {
10652                        workspace.toggle_modal(window, cx, TestModal::new);
10653                    }
10654                })
10655            }
10656        };
10657
10658        // If focus is transferred to another view that's not a panel or another pane, we still show
10659        // the panel as zoomed.
10660        focus_other_view(cx);
10661        workspace.read_with(cx, |workspace, _| {
10662            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10663            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10664        });
10665
10666        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10667        workspace.update_in(cx, |_workspace, window, cx| {
10668            cx.focus_self(window);
10669        });
10670        workspace.read_with(cx, |workspace, _| {
10671            assert_eq!(workspace.zoomed, None);
10672            assert_eq!(workspace.zoomed_position, None);
10673        });
10674
10675        // If focus is transferred again to another view that's not a panel or a pane, we won't
10676        // show the panel as zoomed because it wasn't zoomed before.
10677        focus_other_view(cx);
10678        workspace.read_with(cx, |workspace, _| {
10679            assert_eq!(workspace.zoomed, None);
10680            assert_eq!(workspace.zoomed_position, None);
10681        });
10682
10683        // When the panel is activated, it is zoomed again.
10684        cx.dispatch_action(ToggleRightDock);
10685        workspace.read_with(cx, |workspace, _| {
10686            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10687            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10688        });
10689
10690        // Emitting a ZoomOut event unzooms the panel.
10691        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10692        workspace.read_with(cx, |workspace, _| {
10693            assert_eq!(workspace.zoomed, None);
10694            assert_eq!(workspace.zoomed_position, None);
10695        });
10696
10697        // Emit closed event on panel 1, which is active
10698        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10699
10700        // Now the left dock is closed, because panel_1 was the active panel
10701        workspace.update(cx, |workspace, cx| {
10702            let right_dock = workspace.right_dock();
10703            assert!(!right_dock.read(cx).is_open());
10704        });
10705    }
10706
10707    #[gpui::test]
10708    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10709        init_test(cx);
10710
10711        let fs = FakeFs::new(cx.background_executor.clone());
10712        let project = Project::test(fs, [], cx).await;
10713        let (workspace, cx) =
10714            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10715        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10716
10717        let dirty_regular_buffer = cx.new(|cx| {
10718            TestItem::new(cx)
10719                .with_dirty(true)
10720                .with_label("1.txt")
10721                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10722        });
10723        let dirty_regular_buffer_2 = cx.new(|cx| {
10724            TestItem::new(cx)
10725                .with_dirty(true)
10726                .with_label("2.txt")
10727                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10728        });
10729        let dirty_multi_buffer_with_both = cx.new(|cx| {
10730            TestItem::new(cx)
10731                .with_dirty(true)
10732                .with_buffer_kind(ItemBufferKind::Multibuffer)
10733                .with_label("Fake Project Search")
10734                .with_project_items(&[
10735                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10736                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10737                ])
10738        });
10739        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10740        workspace.update_in(cx, |workspace, window, cx| {
10741            workspace.add_item(
10742                pane.clone(),
10743                Box::new(dirty_regular_buffer.clone()),
10744                None,
10745                false,
10746                false,
10747                window,
10748                cx,
10749            );
10750            workspace.add_item(
10751                pane.clone(),
10752                Box::new(dirty_regular_buffer_2.clone()),
10753                None,
10754                false,
10755                false,
10756                window,
10757                cx,
10758            );
10759            workspace.add_item(
10760                pane.clone(),
10761                Box::new(dirty_multi_buffer_with_both.clone()),
10762                None,
10763                false,
10764                false,
10765                window,
10766                cx,
10767            );
10768        });
10769
10770        pane.update_in(cx, |pane, window, cx| {
10771            pane.activate_item(2, true, true, window, cx);
10772            assert_eq!(
10773                pane.active_item().unwrap().item_id(),
10774                multi_buffer_with_both_files_id,
10775                "Should select the multi buffer in the pane"
10776            );
10777        });
10778        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10779            pane.close_other_items(
10780                &CloseOtherItems {
10781                    save_intent: Some(SaveIntent::Save),
10782                    close_pinned: true,
10783                },
10784                None,
10785                window,
10786                cx,
10787            )
10788        });
10789        cx.background_executor.run_until_parked();
10790        assert!(!cx.has_pending_prompt());
10791        close_all_but_multi_buffer_task
10792            .await
10793            .expect("Closing all buffers but the multi buffer failed");
10794        pane.update(cx, |pane, cx| {
10795            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10796            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10797            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10798            assert_eq!(pane.items_len(), 1);
10799            assert_eq!(
10800                pane.active_item().unwrap().item_id(),
10801                multi_buffer_with_both_files_id,
10802                "Should have only the multi buffer left in the pane"
10803            );
10804            assert!(
10805                dirty_multi_buffer_with_both.read(cx).is_dirty,
10806                "The multi buffer containing the unsaved buffer should still be dirty"
10807            );
10808        });
10809
10810        dirty_regular_buffer.update(cx, |buffer, cx| {
10811            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10812        });
10813
10814        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10815            pane.close_active_item(
10816                &CloseActiveItem {
10817                    save_intent: Some(SaveIntent::Close),
10818                    close_pinned: false,
10819                },
10820                window,
10821                cx,
10822            )
10823        });
10824        cx.background_executor.run_until_parked();
10825        assert!(
10826            cx.has_pending_prompt(),
10827            "Dirty multi buffer should prompt a save dialog"
10828        );
10829        cx.simulate_prompt_answer("Save");
10830        cx.background_executor.run_until_parked();
10831        close_multi_buffer_task
10832            .await
10833            .expect("Closing the multi buffer failed");
10834        pane.update(cx, |pane, cx| {
10835            assert_eq!(
10836                dirty_multi_buffer_with_both.read(cx).save_count,
10837                1,
10838                "Multi buffer item should get be saved"
10839            );
10840            // Test impl does not save inner items, so we do not assert them
10841            assert_eq!(
10842                pane.items_len(),
10843                0,
10844                "No more items should be left in the pane"
10845            );
10846            assert!(pane.active_item().is_none());
10847        });
10848    }
10849
10850    #[gpui::test]
10851    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10852        cx: &mut TestAppContext,
10853    ) {
10854        init_test(cx);
10855
10856        let fs = FakeFs::new(cx.background_executor.clone());
10857        let project = Project::test(fs, [], cx).await;
10858        let (workspace, cx) =
10859            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10860        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10861
10862        let dirty_regular_buffer = cx.new(|cx| {
10863            TestItem::new(cx)
10864                .with_dirty(true)
10865                .with_label("1.txt")
10866                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10867        });
10868        let dirty_regular_buffer_2 = cx.new(|cx| {
10869            TestItem::new(cx)
10870                .with_dirty(true)
10871                .with_label("2.txt")
10872                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10873        });
10874        let clear_regular_buffer = cx.new(|cx| {
10875            TestItem::new(cx)
10876                .with_label("3.txt")
10877                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10878        });
10879
10880        let dirty_multi_buffer_with_both = cx.new(|cx| {
10881            TestItem::new(cx)
10882                .with_dirty(true)
10883                .with_buffer_kind(ItemBufferKind::Multibuffer)
10884                .with_label("Fake Project Search")
10885                .with_project_items(&[
10886                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10887                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10888                    clear_regular_buffer.read(cx).project_items[0].clone(),
10889                ])
10890        });
10891        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10892        workspace.update_in(cx, |workspace, window, cx| {
10893            workspace.add_item(
10894                pane.clone(),
10895                Box::new(dirty_regular_buffer.clone()),
10896                None,
10897                false,
10898                false,
10899                window,
10900                cx,
10901            );
10902            workspace.add_item(
10903                pane.clone(),
10904                Box::new(dirty_multi_buffer_with_both.clone()),
10905                None,
10906                false,
10907                false,
10908                window,
10909                cx,
10910            );
10911        });
10912
10913        pane.update_in(cx, |pane, window, cx| {
10914            pane.activate_item(1, true, true, window, cx);
10915            assert_eq!(
10916                pane.active_item().unwrap().item_id(),
10917                multi_buffer_with_both_files_id,
10918                "Should select the multi buffer in the pane"
10919            );
10920        });
10921        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10922            pane.close_active_item(
10923                &CloseActiveItem {
10924                    save_intent: None,
10925                    close_pinned: false,
10926                },
10927                window,
10928                cx,
10929            )
10930        });
10931        cx.background_executor.run_until_parked();
10932        assert!(
10933            cx.has_pending_prompt(),
10934            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10935        );
10936    }
10937
10938    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10939    /// closed when they are deleted from disk.
10940    #[gpui::test]
10941    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10942        init_test(cx);
10943
10944        // Enable the close_on_disk_deletion setting
10945        cx.update_global(|store: &mut SettingsStore, cx| {
10946            store.update_user_settings(cx, |settings| {
10947                settings.workspace.close_on_file_delete = Some(true);
10948            });
10949        });
10950
10951        let fs = FakeFs::new(cx.background_executor.clone());
10952        let project = Project::test(fs, [], cx).await;
10953        let (workspace, cx) =
10954            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10955        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10956
10957        // Create a test item that simulates a file
10958        let item = cx.new(|cx| {
10959            TestItem::new(cx)
10960                .with_label("test.txt")
10961                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10962        });
10963
10964        // Add item to workspace
10965        workspace.update_in(cx, |workspace, window, cx| {
10966            workspace.add_item(
10967                pane.clone(),
10968                Box::new(item.clone()),
10969                None,
10970                false,
10971                false,
10972                window,
10973                cx,
10974            );
10975        });
10976
10977        // Verify the item is in the pane
10978        pane.read_with(cx, |pane, _| {
10979            assert_eq!(pane.items().count(), 1);
10980        });
10981
10982        // Simulate file deletion by setting the item's deleted state
10983        item.update(cx, |item, _| {
10984            item.set_has_deleted_file(true);
10985        });
10986
10987        // Emit UpdateTab event to trigger the close behavior
10988        cx.run_until_parked();
10989        item.update(cx, |_, cx| {
10990            cx.emit(ItemEvent::UpdateTab);
10991        });
10992
10993        // Allow the close operation to complete
10994        cx.run_until_parked();
10995
10996        // Verify the item was automatically closed
10997        pane.read_with(cx, |pane, _| {
10998            assert_eq!(
10999                pane.items().count(),
11000                0,
11001                "Item should be automatically closed when file is deleted"
11002            );
11003        });
11004    }
11005
11006    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11007    /// open with a strikethrough when they are deleted from disk.
11008    #[gpui::test]
11009    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11010        init_test(cx);
11011
11012        // Ensure close_on_disk_deletion is disabled (default)
11013        cx.update_global(|store: &mut SettingsStore, cx| {
11014            store.update_user_settings(cx, |settings| {
11015                settings.workspace.close_on_file_delete = Some(false);
11016            });
11017        });
11018
11019        let fs = FakeFs::new(cx.background_executor.clone());
11020        let project = Project::test(fs, [], cx).await;
11021        let (workspace, cx) =
11022            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11023        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11024
11025        // Create a test item that simulates a file
11026        let item = cx.new(|cx| {
11027            TestItem::new(cx)
11028                .with_label("test.txt")
11029                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11030        });
11031
11032        // Add item to workspace
11033        workspace.update_in(cx, |workspace, window, cx| {
11034            workspace.add_item(
11035                pane.clone(),
11036                Box::new(item.clone()),
11037                None,
11038                false,
11039                false,
11040                window,
11041                cx,
11042            );
11043        });
11044
11045        // Verify the item is in the pane
11046        pane.read_with(cx, |pane, _| {
11047            assert_eq!(pane.items().count(), 1);
11048        });
11049
11050        // Simulate file deletion
11051        item.update(cx, |item, _| {
11052            item.set_has_deleted_file(true);
11053        });
11054
11055        // Emit UpdateTab event
11056        cx.run_until_parked();
11057        item.update(cx, |_, cx| {
11058            cx.emit(ItemEvent::UpdateTab);
11059        });
11060
11061        // Allow any potential close operation to complete
11062        cx.run_until_parked();
11063
11064        // Verify the item remains open (with strikethrough)
11065        pane.read_with(cx, |pane, _| {
11066            assert_eq!(
11067                pane.items().count(),
11068                1,
11069                "Item should remain open when close_on_disk_deletion is disabled"
11070            );
11071        });
11072
11073        // Verify the item shows as deleted
11074        item.read_with(cx, |item, _| {
11075            assert!(
11076                item.has_deleted_file,
11077                "Item should be marked as having deleted file"
11078            );
11079        });
11080    }
11081
11082    /// Tests that dirty files are not automatically closed when deleted from disk,
11083    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11084    /// unsaved changes without being prompted.
11085    #[gpui::test]
11086    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11087        init_test(cx);
11088
11089        // Enable the close_on_file_delete setting
11090        cx.update_global(|store: &mut SettingsStore, cx| {
11091            store.update_user_settings(cx, |settings| {
11092                settings.workspace.close_on_file_delete = Some(true);
11093            });
11094        });
11095
11096        let fs = FakeFs::new(cx.background_executor.clone());
11097        let project = Project::test(fs, [], cx).await;
11098        let (workspace, cx) =
11099            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11100        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11101
11102        // Create a dirty test item
11103        let item = cx.new(|cx| {
11104            TestItem::new(cx)
11105                .with_dirty(true)
11106                .with_label("test.txt")
11107                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11108        });
11109
11110        // Add item to workspace
11111        workspace.update_in(cx, |workspace, window, cx| {
11112            workspace.add_item(
11113                pane.clone(),
11114                Box::new(item.clone()),
11115                None,
11116                false,
11117                false,
11118                window,
11119                cx,
11120            );
11121        });
11122
11123        // Simulate file deletion
11124        item.update(cx, |item, _| {
11125            item.set_has_deleted_file(true);
11126        });
11127
11128        // Emit UpdateTab event to trigger the close behavior
11129        cx.run_until_parked();
11130        item.update(cx, |_, cx| {
11131            cx.emit(ItemEvent::UpdateTab);
11132        });
11133
11134        // Allow any potential close operation to complete
11135        cx.run_until_parked();
11136
11137        // Verify the item remains open (dirty files are not auto-closed)
11138        pane.read_with(cx, |pane, _| {
11139            assert_eq!(
11140                pane.items().count(),
11141                1,
11142                "Dirty items should not be automatically closed even when file is deleted"
11143            );
11144        });
11145
11146        // Verify the item is marked as deleted and still dirty
11147        item.read_with(cx, |item, _| {
11148            assert!(
11149                item.has_deleted_file,
11150                "Item should be marked as having deleted file"
11151            );
11152            assert!(item.is_dirty, "Item should still be dirty");
11153        });
11154    }
11155
11156    /// Tests that navigation history is cleaned up when files are auto-closed
11157    /// due to deletion from disk.
11158    #[gpui::test]
11159    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11160        init_test(cx);
11161
11162        // Enable the close_on_file_delete setting
11163        cx.update_global(|store: &mut SettingsStore, cx| {
11164            store.update_user_settings(cx, |settings| {
11165                settings.workspace.close_on_file_delete = Some(true);
11166            });
11167        });
11168
11169        let fs = FakeFs::new(cx.background_executor.clone());
11170        let project = Project::test(fs, [], cx).await;
11171        let (workspace, cx) =
11172            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11173        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11174
11175        // Create test items
11176        let item1 = cx.new(|cx| {
11177            TestItem::new(cx)
11178                .with_label("test1.txt")
11179                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11180        });
11181        let item1_id = item1.item_id();
11182
11183        let item2 = cx.new(|cx| {
11184            TestItem::new(cx)
11185                .with_label("test2.txt")
11186                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11187        });
11188
11189        // Add items to workspace
11190        workspace.update_in(cx, |workspace, window, cx| {
11191            workspace.add_item(
11192                pane.clone(),
11193                Box::new(item1.clone()),
11194                None,
11195                false,
11196                false,
11197                window,
11198                cx,
11199            );
11200            workspace.add_item(
11201                pane.clone(),
11202                Box::new(item2.clone()),
11203                None,
11204                false,
11205                false,
11206                window,
11207                cx,
11208            );
11209        });
11210
11211        // Activate item1 to ensure it gets navigation entries
11212        pane.update_in(cx, |pane, window, cx| {
11213            pane.activate_item(0, true, true, window, cx);
11214        });
11215
11216        // Switch to item2 and back to create navigation history
11217        pane.update_in(cx, |pane, window, cx| {
11218            pane.activate_item(1, true, true, window, cx);
11219        });
11220        cx.run_until_parked();
11221
11222        pane.update_in(cx, |pane, window, cx| {
11223            pane.activate_item(0, true, true, window, cx);
11224        });
11225        cx.run_until_parked();
11226
11227        // Simulate file deletion for item1
11228        item1.update(cx, |item, _| {
11229            item.set_has_deleted_file(true);
11230        });
11231
11232        // Emit UpdateTab event to trigger the close behavior
11233        item1.update(cx, |_, cx| {
11234            cx.emit(ItemEvent::UpdateTab);
11235        });
11236        cx.run_until_parked();
11237
11238        // Verify item1 was closed
11239        pane.read_with(cx, |pane, _| {
11240            assert_eq!(
11241                pane.items().count(),
11242                1,
11243                "Should have 1 item remaining after auto-close"
11244            );
11245        });
11246
11247        // Check navigation history after close
11248        let has_item = pane.read_with(cx, |pane, cx| {
11249            let mut has_item = false;
11250            pane.nav_history().for_each_entry(cx, |entry, _| {
11251                if entry.item.id() == item1_id {
11252                    has_item = true;
11253                }
11254            });
11255            has_item
11256        });
11257
11258        assert!(
11259            !has_item,
11260            "Navigation history should not contain closed item entries"
11261        );
11262    }
11263
11264    #[gpui::test]
11265    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11266        cx: &mut TestAppContext,
11267    ) {
11268        init_test(cx);
11269
11270        let fs = FakeFs::new(cx.background_executor.clone());
11271        let project = Project::test(fs, [], cx).await;
11272        let (workspace, cx) =
11273            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11274        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11275
11276        let dirty_regular_buffer = cx.new(|cx| {
11277            TestItem::new(cx)
11278                .with_dirty(true)
11279                .with_label("1.txt")
11280                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11281        });
11282        let dirty_regular_buffer_2 = cx.new(|cx| {
11283            TestItem::new(cx)
11284                .with_dirty(true)
11285                .with_label("2.txt")
11286                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11287        });
11288        let clear_regular_buffer = cx.new(|cx| {
11289            TestItem::new(cx)
11290                .with_label("3.txt")
11291                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11292        });
11293
11294        let dirty_multi_buffer = cx.new(|cx| {
11295            TestItem::new(cx)
11296                .with_dirty(true)
11297                .with_buffer_kind(ItemBufferKind::Multibuffer)
11298                .with_label("Fake Project Search")
11299                .with_project_items(&[
11300                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11301                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11302                    clear_regular_buffer.read(cx).project_items[0].clone(),
11303                ])
11304        });
11305        workspace.update_in(cx, |workspace, window, cx| {
11306            workspace.add_item(
11307                pane.clone(),
11308                Box::new(dirty_regular_buffer.clone()),
11309                None,
11310                false,
11311                false,
11312                window,
11313                cx,
11314            );
11315            workspace.add_item(
11316                pane.clone(),
11317                Box::new(dirty_regular_buffer_2.clone()),
11318                None,
11319                false,
11320                false,
11321                window,
11322                cx,
11323            );
11324            workspace.add_item(
11325                pane.clone(),
11326                Box::new(dirty_multi_buffer.clone()),
11327                None,
11328                false,
11329                false,
11330                window,
11331                cx,
11332            );
11333        });
11334
11335        pane.update_in(cx, |pane, window, cx| {
11336            pane.activate_item(2, true, true, window, cx);
11337            assert_eq!(
11338                pane.active_item().unwrap().item_id(),
11339                dirty_multi_buffer.item_id(),
11340                "Should select the multi buffer in the pane"
11341            );
11342        });
11343        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11344            pane.close_active_item(
11345                &CloseActiveItem {
11346                    save_intent: None,
11347                    close_pinned: false,
11348                },
11349                window,
11350                cx,
11351            )
11352        });
11353        cx.background_executor.run_until_parked();
11354        assert!(
11355            !cx.has_pending_prompt(),
11356            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11357        );
11358        close_multi_buffer_task
11359            .await
11360            .expect("Closing multi buffer failed");
11361        pane.update(cx, |pane, cx| {
11362            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11363            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11364            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11365            assert_eq!(
11366                pane.items()
11367                    .map(|item| item.item_id())
11368                    .sorted()
11369                    .collect::<Vec<_>>(),
11370                vec![
11371                    dirty_regular_buffer.item_id(),
11372                    dirty_regular_buffer_2.item_id(),
11373                ],
11374                "Should have no multi buffer left in the pane"
11375            );
11376            assert!(dirty_regular_buffer.read(cx).is_dirty);
11377            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11378        });
11379    }
11380
11381    #[gpui::test]
11382    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11383        init_test(cx);
11384        let fs = FakeFs::new(cx.executor());
11385        let project = Project::test(fs, [], cx).await;
11386        let (workspace, cx) =
11387            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11388
11389        // Add a new panel to the right dock, opening the dock and setting the
11390        // focus to the new panel.
11391        let panel = workspace.update_in(cx, |workspace, window, cx| {
11392            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11393            workspace.add_panel(panel.clone(), window, cx);
11394
11395            workspace
11396                .right_dock()
11397                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11398
11399            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11400
11401            panel
11402        });
11403
11404        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11405        // panel to the next valid position which, in this case, is the left
11406        // dock.
11407        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11408        workspace.update(cx, |workspace, cx| {
11409            assert!(workspace.left_dock().read(cx).is_open());
11410            assert_eq!(panel.read(cx).position, DockPosition::Left);
11411        });
11412
11413        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11414        // panel to the next valid position which, in this case, is the bottom
11415        // dock.
11416        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11417        workspace.update(cx, |workspace, cx| {
11418            assert!(workspace.bottom_dock().read(cx).is_open());
11419            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11420        });
11421
11422        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11423        // around moving the panel to its initial position, the right dock.
11424        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11425        workspace.update(cx, |workspace, cx| {
11426            assert!(workspace.right_dock().read(cx).is_open());
11427            assert_eq!(panel.read(cx).position, DockPosition::Right);
11428        });
11429
11430        // Remove focus from the panel, ensuring that, if the panel is not
11431        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11432        // the panel's position, so the panel is still in the right dock.
11433        workspace.update_in(cx, |workspace, window, cx| {
11434            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11435        });
11436
11437        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11438        workspace.update(cx, |workspace, cx| {
11439            assert!(workspace.right_dock().read(cx).is_open());
11440            assert_eq!(panel.read(cx).position, DockPosition::Right);
11441        });
11442    }
11443
11444    #[gpui::test]
11445    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11446        init_test(cx);
11447
11448        let fs = FakeFs::new(cx.executor());
11449        let project = Project::test(fs, [], cx).await;
11450        let (workspace, cx) =
11451            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11452
11453        let item_1 = cx.new(|cx| {
11454            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11455        });
11456        workspace.update_in(cx, |workspace, window, cx| {
11457            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11458            workspace.move_item_to_pane_in_direction(
11459                &MoveItemToPaneInDirection {
11460                    direction: SplitDirection::Right,
11461                    focus: true,
11462                    clone: false,
11463                },
11464                window,
11465                cx,
11466            );
11467            workspace.move_item_to_pane_at_index(
11468                &MoveItemToPane {
11469                    destination: 3,
11470                    focus: true,
11471                    clone: false,
11472                },
11473                window,
11474                cx,
11475            );
11476
11477            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11478            assert_eq!(
11479                pane_items_paths(&workspace.active_pane, cx),
11480                vec!["first.txt".to_string()],
11481                "Single item was not moved anywhere"
11482            );
11483        });
11484
11485        let item_2 = cx.new(|cx| {
11486            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11487        });
11488        workspace.update_in(cx, |workspace, window, cx| {
11489            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11490            assert_eq!(
11491                pane_items_paths(&workspace.panes[0], cx),
11492                vec!["first.txt".to_string(), "second.txt".to_string()],
11493            );
11494            workspace.move_item_to_pane_in_direction(
11495                &MoveItemToPaneInDirection {
11496                    direction: SplitDirection::Right,
11497                    focus: true,
11498                    clone: false,
11499                },
11500                window,
11501                cx,
11502            );
11503
11504            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11505            assert_eq!(
11506                pane_items_paths(&workspace.panes[0], cx),
11507                vec!["first.txt".to_string()],
11508                "After moving, one item should be left in the original pane"
11509            );
11510            assert_eq!(
11511                pane_items_paths(&workspace.panes[1], cx),
11512                vec!["second.txt".to_string()],
11513                "New item should have been moved to the new pane"
11514            );
11515        });
11516
11517        let item_3 = cx.new(|cx| {
11518            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11519        });
11520        workspace.update_in(cx, |workspace, window, cx| {
11521            let original_pane = workspace.panes[0].clone();
11522            workspace.set_active_pane(&original_pane, window, cx);
11523            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11524            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11525            assert_eq!(
11526                pane_items_paths(&workspace.active_pane, cx),
11527                vec!["first.txt".to_string(), "third.txt".to_string()],
11528                "New pane should be ready to move one item out"
11529            );
11530
11531            workspace.move_item_to_pane_at_index(
11532                &MoveItemToPane {
11533                    destination: 3,
11534                    focus: true,
11535                    clone: false,
11536                },
11537                window,
11538                cx,
11539            );
11540            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11541            assert_eq!(
11542                pane_items_paths(&workspace.active_pane, cx),
11543                vec!["first.txt".to_string()],
11544                "After moving, one item should be left in the original pane"
11545            );
11546            assert_eq!(
11547                pane_items_paths(&workspace.panes[1], cx),
11548                vec!["second.txt".to_string()],
11549                "Previously created pane should be unchanged"
11550            );
11551            assert_eq!(
11552                pane_items_paths(&workspace.panes[2], cx),
11553                vec!["third.txt".to_string()],
11554                "New item should have been moved to the new pane"
11555            );
11556        });
11557    }
11558
11559    #[gpui::test]
11560    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11561        init_test(cx);
11562
11563        let fs = FakeFs::new(cx.executor());
11564        let project = Project::test(fs, [], cx).await;
11565        let (workspace, cx) =
11566            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11567
11568        let item_1 = cx.new(|cx| {
11569            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11570        });
11571        workspace.update_in(cx, |workspace, window, cx| {
11572            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11573            workspace.move_item_to_pane_in_direction(
11574                &MoveItemToPaneInDirection {
11575                    direction: SplitDirection::Right,
11576                    focus: true,
11577                    clone: true,
11578                },
11579                window,
11580                cx,
11581            );
11582            workspace.move_item_to_pane_at_index(
11583                &MoveItemToPane {
11584                    destination: 3,
11585                    focus: true,
11586                    clone: true,
11587                },
11588                window,
11589                cx,
11590            );
11591        });
11592        cx.run_until_parked();
11593
11594        workspace.update(cx, |workspace, cx| {
11595            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11596            for pane in workspace.panes() {
11597                assert_eq!(
11598                    pane_items_paths(pane, cx),
11599                    vec!["first.txt".to_string()],
11600                    "Single item exists in all panes"
11601                );
11602            }
11603        });
11604
11605        // verify that the active pane has been updated after waiting for the
11606        // pane focus event to fire and resolve
11607        workspace.read_with(cx, |workspace, _app| {
11608            assert_eq!(
11609                workspace.active_pane(),
11610                &workspace.panes[2],
11611                "The third pane should be the active one: {:?}",
11612                workspace.panes
11613            );
11614        })
11615    }
11616
11617    mod register_project_item_tests {
11618
11619        use super::*;
11620
11621        // View
11622        struct TestPngItemView {
11623            focus_handle: FocusHandle,
11624        }
11625        // Model
11626        struct TestPngItem {}
11627
11628        impl project::ProjectItem for TestPngItem {
11629            fn try_open(
11630                _project: &Entity<Project>,
11631                path: &ProjectPath,
11632                cx: &mut App,
11633            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11634                if path.path.extension().unwrap() == "png" {
11635                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11636                } else {
11637                    None
11638                }
11639            }
11640
11641            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11642                None
11643            }
11644
11645            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11646                None
11647            }
11648
11649            fn is_dirty(&self) -> bool {
11650                false
11651            }
11652        }
11653
11654        impl Item for TestPngItemView {
11655            type Event = ();
11656            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11657                "".into()
11658            }
11659        }
11660        impl EventEmitter<()> for TestPngItemView {}
11661        impl Focusable for TestPngItemView {
11662            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11663                self.focus_handle.clone()
11664            }
11665        }
11666
11667        impl Render for TestPngItemView {
11668            fn render(
11669                &mut self,
11670                _window: &mut Window,
11671                _cx: &mut Context<Self>,
11672            ) -> impl IntoElement {
11673                Empty
11674            }
11675        }
11676
11677        impl ProjectItem for TestPngItemView {
11678            type Item = TestPngItem;
11679
11680            fn for_project_item(
11681                _project: Entity<Project>,
11682                _pane: Option<&Pane>,
11683                _item: Entity<Self::Item>,
11684                _: &mut Window,
11685                cx: &mut Context<Self>,
11686            ) -> Self
11687            where
11688                Self: Sized,
11689            {
11690                Self {
11691                    focus_handle: cx.focus_handle(),
11692                }
11693            }
11694        }
11695
11696        // View
11697        struct TestIpynbItemView {
11698            focus_handle: FocusHandle,
11699        }
11700        // Model
11701        struct TestIpynbItem {}
11702
11703        impl project::ProjectItem for TestIpynbItem {
11704            fn try_open(
11705                _project: &Entity<Project>,
11706                path: &ProjectPath,
11707                cx: &mut App,
11708            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11709                if path.path.extension().unwrap() == "ipynb" {
11710                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11711                } else {
11712                    None
11713                }
11714            }
11715
11716            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11717                None
11718            }
11719
11720            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11721                None
11722            }
11723
11724            fn is_dirty(&self) -> bool {
11725                false
11726            }
11727        }
11728
11729        impl Item for TestIpynbItemView {
11730            type Event = ();
11731            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11732                "".into()
11733            }
11734        }
11735        impl EventEmitter<()> for TestIpynbItemView {}
11736        impl Focusable for TestIpynbItemView {
11737            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11738                self.focus_handle.clone()
11739            }
11740        }
11741
11742        impl Render for TestIpynbItemView {
11743            fn render(
11744                &mut self,
11745                _window: &mut Window,
11746                _cx: &mut Context<Self>,
11747            ) -> impl IntoElement {
11748                Empty
11749            }
11750        }
11751
11752        impl ProjectItem for TestIpynbItemView {
11753            type Item = TestIpynbItem;
11754
11755            fn for_project_item(
11756                _project: Entity<Project>,
11757                _pane: Option<&Pane>,
11758                _item: Entity<Self::Item>,
11759                _: &mut Window,
11760                cx: &mut Context<Self>,
11761            ) -> Self
11762            where
11763                Self: Sized,
11764            {
11765                Self {
11766                    focus_handle: cx.focus_handle(),
11767                }
11768            }
11769        }
11770
11771        struct TestAlternatePngItemView {
11772            focus_handle: FocusHandle,
11773        }
11774
11775        impl Item for TestAlternatePngItemView {
11776            type Event = ();
11777            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11778                "".into()
11779            }
11780        }
11781
11782        impl EventEmitter<()> for TestAlternatePngItemView {}
11783        impl Focusable for TestAlternatePngItemView {
11784            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11785                self.focus_handle.clone()
11786            }
11787        }
11788
11789        impl Render for TestAlternatePngItemView {
11790            fn render(
11791                &mut self,
11792                _window: &mut Window,
11793                _cx: &mut Context<Self>,
11794            ) -> impl IntoElement {
11795                Empty
11796            }
11797        }
11798
11799        impl ProjectItem for TestAlternatePngItemView {
11800            type Item = TestPngItem;
11801
11802            fn for_project_item(
11803                _project: Entity<Project>,
11804                _pane: Option<&Pane>,
11805                _item: Entity<Self::Item>,
11806                _: &mut Window,
11807                cx: &mut Context<Self>,
11808            ) -> Self
11809            where
11810                Self: Sized,
11811            {
11812                Self {
11813                    focus_handle: cx.focus_handle(),
11814                }
11815            }
11816        }
11817
11818        #[gpui::test]
11819        async fn test_register_project_item(cx: &mut TestAppContext) {
11820            init_test(cx);
11821
11822            cx.update(|cx| {
11823                register_project_item::<TestPngItemView>(cx);
11824                register_project_item::<TestIpynbItemView>(cx);
11825            });
11826
11827            let fs = FakeFs::new(cx.executor());
11828            fs.insert_tree(
11829                "/root1",
11830                json!({
11831                    "one.png": "BINARYDATAHERE",
11832                    "two.ipynb": "{ totally a notebook }",
11833                    "three.txt": "editing text, sure why not?"
11834                }),
11835            )
11836            .await;
11837
11838            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11839            let (workspace, cx) =
11840                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11841
11842            let worktree_id = project.update(cx, |project, cx| {
11843                project.worktrees(cx).next().unwrap().read(cx).id()
11844            });
11845
11846            let handle = workspace
11847                .update_in(cx, |workspace, window, cx| {
11848                    let project_path = (worktree_id, rel_path("one.png"));
11849                    workspace.open_path(project_path, None, true, window, cx)
11850                })
11851                .await
11852                .unwrap();
11853
11854            // Now we can check if the handle we got back errored or not
11855            assert_eq!(
11856                handle.to_any_view().entity_type(),
11857                TypeId::of::<TestPngItemView>()
11858            );
11859
11860            let handle = workspace
11861                .update_in(cx, |workspace, window, cx| {
11862                    let project_path = (worktree_id, rel_path("two.ipynb"));
11863                    workspace.open_path(project_path, None, true, window, cx)
11864                })
11865                .await
11866                .unwrap();
11867
11868            assert_eq!(
11869                handle.to_any_view().entity_type(),
11870                TypeId::of::<TestIpynbItemView>()
11871            );
11872
11873            let handle = workspace
11874                .update_in(cx, |workspace, window, cx| {
11875                    let project_path = (worktree_id, rel_path("three.txt"));
11876                    workspace.open_path(project_path, None, true, window, cx)
11877                })
11878                .await;
11879            assert!(handle.is_err());
11880        }
11881
11882        #[gpui::test]
11883        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11884            init_test(cx);
11885
11886            cx.update(|cx| {
11887                register_project_item::<TestPngItemView>(cx);
11888                register_project_item::<TestAlternatePngItemView>(cx);
11889            });
11890
11891            let fs = FakeFs::new(cx.executor());
11892            fs.insert_tree(
11893                "/root1",
11894                json!({
11895                    "one.png": "BINARYDATAHERE",
11896                    "two.ipynb": "{ totally a notebook }",
11897                    "three.txt": "editing text, sure why not?"
11898                }),
11899            )
11900            .await;
11901            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11902            let (workspace, cx) =
11903                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11904            let worktree_id = project.update(cx, |project, cx| {
11905                project.worktrees(cx).next().unwrap().read(cx).id()
11906            });
11907
11908            let handle = workspace
11909                .update_in(cx, |workspace, window, cx| {
11910                    let project_path = (worktree_id, rel_path("one.png"));
11911                    workspace.open_path(project_path, None, true, window, cx)
11912                })
11913                .await
11914                .unwrap();
11915
11916            // This _must_ be the second item registered
11917            assert_eq!(
11918                handle.to_any_view().entity_type(),
11919                TypeId::of::<TestAlternatePngItemView>()
11920            );
11921
11922            let handle = workspace
11923                .update_in(cx, |workspace, window, cx| {
11924                    let project_path = (worktree_id, rel_path("three.txt"));
11925                    workspace.open_path(project_path, None, true, window, cx)
11926                })
11927                .await;
11928            assert!(handle.is_err());
11929        }
11930    }
11931
11932    #[gpui::test]
11933    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11934        init_test(cx);
11935
11936        let fs = FakeFs::new(cx.executor());
11937        let project = Project::test(fs, [], cx).await;
11938        let (workspace, _cx) =
11939            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11940
11941        // Test with status bar shown (default)
11942        workspace.read_with(cx, |workspace, cx| {
11943            let visible = workspace.status_bar_visible(cx);
11944            assert!(visible, "Status bar should be visible by default");
11945        });
11946
11947        // Test with status bar hidden
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(false);
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 hidden when show is false");
11957        });
11958
11959        // Test with status bar shown explicitly
11960        cx.update_global(|store: &mut SettingsStore, cx| {
11961            store.update_user_settings(cx, |settings| {
11962                settings.status_bar.get_or_insert_default().show = Some(true);
11963            });
11964        });
11965
11966        workspace.read_with(cx, |workspace, cx| {
11967            let visible = workspace.status_bar_visible(cx);
11968            assert!(visible, "Status bar should be visible when show is true");
11969        });
11970    }
11971
11972    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11973        pane.read(cx)
11974            .items()
11975            .flat_map(|item| {
11976                item.project_paths(cx)
11977                    .into_iter()
11978                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11979            })
11980            .collect()
11981    }
11982
11983    pub fn init_test(cx: &mut TestAppContext) {
11984        cx.update(|cx| {
11985            let settings_store = SettingsStore::test(cx);
11986            cx.set_global(settings_store);
11987            theme::init(theme::LoadThemes::JustBase, cx);
11988        });
11989    }
11990
11991    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11992        let item = TestProjectItem::new(id, path, cx);
11993        item.update(cx, |item, _| {
11994            item.is_dirty = true;
11995        });
11996        item
11997    }
11998}